This kselftest fixes update for Linux 6.6-rc5 consists of one single
fix to Makefile to fix the incorrect TARGET name for uevent test.
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Merge tag 'linux-kselftest-fixes-6.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fix from Shuah Khan:
"One single fix to Makefile to fix the incorrect TARGET name for uevent
test"
* tag 'linux-kselftest-fixes-6.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests: Fix wrong TARGET in kselftest top level Makefile
to issues which were introduced after 6.5.
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Merge tag 'mm-hotfixes-stable-2023-10-01-08-34' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"Fourteen hotfixes, eleven of which are cc:stable. The remainder
pertain to issues which were introduced after 6.5"
* tag 'mm-hotfixes-stable-2023-10-01-08-34' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
Crash: add lock to serialize crash hotplug handling
selftests/mm: fix awk usage in charge_reserved_hugetlb.sh and hugetlb_reparenting_test.sh that may cause error
mm: mempolicy: keep VMA walk if both MPOL_MF_STRICT and MPOL_MF_MOVE are specified
mm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions()
mm, memcg: reconsider kmem.limit_in_bytes deprecation
mm: zswap: fix potential memory corruption on duplicate store
arm64: hugetlb: fix set_huge_pte_at() to work with all swap entries
mm: hugetlb: add huge page size param to set_huge_pte_at()
maple_tree: add MAS_UNDERFLOW and MAS_OVERFLOW states
maple_tree: add mas_is_active() to detect in-tree walks
nilfs2: fix potential use after free in nilfs_gccache_submit_read_data()
mm: abstract moving to the next PFN
mm: report success more often from filemap_map_folio_range()
fs: binfmt_elf_efpic: fix personality for ELF-FDPIC
- Fix arch_stack_walk_reliable(), used by live patching.
- Fix powerpc selftests to work with run_kselftest.sh
Thanks to: Joe Lawrence, Petr Mladek.
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Merge tag 'powerpc-6.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix arch_stack_walk_reliable(), used by live patching
- Fix powerpc selftests to work with run_kselftest.sh
Thanks to Joe Lawrence and Petr Mladek.
* tag 'powerpc-6.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
selftests/powerpc: Fix emit_tests to work with run_kselftest.sh
powerpc/stacktrace: Fix arch_stack_walk_reliable()
According to the awk manual, the -e option does not need to be specified
in front of 'program' (unless you need to mix program-file).
The redundant -e option can cause error when users use awk tools other
than gawk (for example, mawk does not support the -e option).
Error Example:
awk: not an option: -e
Link: https://lkml.kernel.org/r/VI1P193MB075228810591AF2FDD7D42C599C3A@VI1P193MB0752.EURP193.PROD.OUTLOOK.COM
Signed-off-by: Juntong Deng <juntong.deng@outlook.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The 'uevents' subdirectory does not exist in tools/testing/selftests/
and adding 'uevents' to the TARGETS list results in the following error:
make[1]: Entering directory 'xx/tools/testing/selftests/uevents'
make[1]: *** No targets specified and no makefile found. Stop.
make[1]: Leaving directory 'xx/tools/testing/selftests/uevents'
What actually exists in tools/testing/selftests/ is the 'uevent'
subdirectory.
Signed-off-by: Juntong Deng <juntong.deng@outlook.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This kselftest fixes update for Linux 6.6-rc4 consists of one
single fix to unmount tracefs when test created mount.
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Merge tag 'linux-kselftest-fixes-6.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fix from Shuah Khan:
"One single fix to unmount tracefs when test created mount"
* tag 'linux-kselftest-fixes-6.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/user_events: Fix to unmount tracefs when test created mount
Build:
- Update header files in the tools/**/include directory to sync with
the kernel sources as usual.
- Remove unused bpf-prologue files. While it's not strictly a fix,
but the functionality was removed in this cycle so better to get
rid of the code together.
- Other minor build fixes.
Misc:
- Fix uninitialized memory access in PMU parsing code
- Fix segfaults on software event
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Merge tag 'perf-tools-fixes-for-v6.6-1-2023-09-25' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools
Pull perf tools fixes from Namhyung Kim:
"Build:
- Update header files in the tools/**/include directory to sync with
the kernel sources as usual.
- Remove unused bpf-prologue files. While it's not strictly a fix,
but the functionality was removed in this cycle so better to get
rid of the code together.
- Other minor build fixes.
Misc:
- Fix uninitialized memory access in PMU parsing code
- Fix segfaults on software event"
* tag 'perf-tools-fixes-for-v6.6-1-2023-09-25' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
perf jevent: fix core dump on software events on s390
perf pmu: Ensure all alias variables are initialized
perf jevents metric: Fix type of strcmp_cpuid_str
perf trace: Avoid compile error wrt redefining bool
perf bpf-prologue: Remove unused file
tools headers UAPI: Update tools's copy of drm.h headers
tools arch x86: Sync the msr-index.h copy with the kernel sources
perf bench sched-seccomp-notify: Use the tools copy of seccomp.h UAPI
tools headers UAPI: Copy seccomp.h to be able to build 'perf bench' in older systems
tools headers UAPI: Sync files changed by new fchmodat2 and map_shadow_stack syscalls with the kernel sources
perf tools: Update copy of libbpf's hashmap.c
* Fix EL2 Stage-1 MMIO mappings where a random address was used
* Fix SMCCC function number comparison when the SVE hint is set
RISC-V:
* Fix KVM_GET_REG_LIST API for ISA_EXT registers
* Fix reading ISA_EXT register of a missing extension
* Fix ISA_EXT register handling in get-reg-list test
* Fix filtering of AIA registers in get-reg-list test
x86:
* Fixes for TSC_AUX virtualization
* Stop zapping page tables asynchronously, since we don't
zap them as often as before
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"ARM:
- Fix EL2 Stage-1 MMIO mappings where a random address was used
- Fix SMCCC function number comparison when the SVE hint is set
RISC-V:
- Fix KVM_GET_REG_LIST API for ISA_EXT registers
- Fix reading ISA_EXT register of a missing extension
- Fix ISA_EXT register handling in get-reg-list test
- Fix filtering of AIA registers in get-reg-list test
x86:
- Fixes for TSC_AUX virtualization
- Stop zapping page tables asynchronously, since we don't zap them as
often as before"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: SVM: Do not use user return MSR support for virtualized TSC_AUX
KVM: SVM: Fix TSC_AUX virtualization setup
KVM: SVM: INTERCEPT_RDTSCP is never intercepted anyway
KVM: x86/mmu: Stop zapping invalidated TDP MMU roots asynchronously
KVM: x86/mmu: Do not filter address spaces in for_each_tdp_mmu_root_yield_safe()
KVM: x86/mmu: Open code leaf invalidation from mmu_notifier
KVM: riscv: selftests: Selectively filter-out AIA registers
KVM: riscv: selftests: Fix ISA_EXT register handling in get-reg-list
RISC-V: KVM: Fix riscv_vcpu_get_isa_ext_single() for missing extensions
RISC-V: KVM: Fix KVM_GET_REG_LIST API for ISA_EXT registers
KVM: selftests: Assert that vasprintf() is successful
KVM: arm64: nvhe: Ignore SVE hint in SMCCC function ID
KVM: arm64: Properly return allocated EL2 VA from hyp_alloc_private_va_range()
cc:stable.
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Merge tag 'mm-hotfixes-stable-2023-09-23-10-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"13 hotfixes, 10 of which pertain to post-6.5 issues. The other three
are cc:stable"
* tag 'mm-hotfixes-stable-2023-09-23-10-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
proc: nommu: fix empty /proc/<pid>/maps
filemap: add filemap_map_order0_folio() to handle order0 folio
proc: nommu: /proc/<pid>/maps: release mmap read lock
mm: memcontrol: fix GFP_NOFS recursion in memory.high enforcement
pidfd: prevent a kernel-doc warning
argv_split: fix kernel-doc warnings
scatterlist: add missing function params to kernel-doc
selftests/proc: fixup proc-empty-vm test after KSM changes
revert "scripts/gdb/symbols: add specific ko module load command"
selftests: link libasan statically for tests with -fsanitize=address
task_work: add kerneldoc annotation for 'data' argument
mm: page_alloc: fix CMA and HIGHATOMIC landing on the wrong buddy list
sh: mm: re-add lost __ref to ioremap_prot() to fix modpost warning
- Fix KVM_GET_REG_LIST API for ISA_EXT registers
- Fix reading ISA_EXT register of a missing extension
- Fix ISA_EXT register handling in get-reg-list test
- Fix filtering of AIA registers in get-reg-list test
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Merge tag 'kvm-riscv-fixes-6.6-1' of https://github.com/kvm-riscv/linux into HEAD
KVM/riscv fixes for 6.6, take #1
- Fix KVM_GET_REG_LIST API for ISA_EXT registers
- Fix reading ISA_EXT register of a missing extension
- Fix ISA_EXT register handling in get-reg-list test
- Fix filtering of AIA registers in get-reg-list test
In order to use run_kselftest.sh the list of tests must be emitted to
populate kselftest-list.txt.
The powerpc Makefile is written to use EMIT_TESTS. But support for
EMIT_TESTS was dropped in commit d4e59a536f ("selftests: Use runner.sh
for emit targets"). Although prior to that commit a548de0fe8
("selftests: lib.mk: add test execute bit check to EMIT_TESTS") had
already broken run_kselftest.sh for powerpc due to the executable check
using the wrong path.
It can be fixed by replacing the EMIT_TESTS definitions with actual
emit_tests rules in the powerpc Makefiles. This makes run_kselftest.sh
able to run powerpc tests:
$ cd linux
$ export ARCH=powerpc
$ export CROSS_COMPILE=powerpc64le-linux-gnu-
$ make headers
$ make -j -C tools/testing/selftests install
$ grep -c "^powerpc" tools/testing/selftests/kselftest_install/kselftest-list.txt
182
Fixes: d4e59a536f ("selftests: Use runner.sh for emit targets")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230921072623.828772-1-mpe@ellerman.id.au
Current release - regressions:
- bpf: adjust size_index according to the value of KMALLOC_MIN_SIZE
- netfilter: fix entries val in rule reset audit log
- eth: stmmac: fix incorrect rxq|txq_stats reference
Previous releases - regressions:
- ipv4: fix null-deref in ipv4_link_failure
- netfilter:
- fix several GC related issues
- fix race between IPSET_CMD_CREATE and IPSET_CMD_SWAP
- eth: team: fix null-ptr-deref when team device type is changed
- eth: i40e: fix VF VLAN offloading when port VLAN is configured
- eth: ionic: fix 16bit math issue when PAGE_SIZE >= 64KB
Previous releases - always broken:
- core: fix ETH_P_1588 flow dissector
- mptcp: fix several connection hang-up conditions
- bpf:
- avoid deadlock when using queue and stack maps from NMI
- add override check to kprobe multi link attach
- hsr: properly parse HSRv1 supervisor frames.
- eth: igc: fix infinite initialization loop with early XDP redirect
- eth: octeon_ep: fix tx dma unmap len values in SG
- eth: hns3: fix GRE checksum offload issue
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfilter and bpf.
Current release - regressions:
- bpf: adjust size_index according to the value of KMALLOC_MIN_SIZE
- netfilter: fix entries val in rule reset audit log
- eth: stmmac: fix incorrect rxq|txq_stats reference
Previous releases - regressions:
- ipv4: fix null-deref in ipv4_link_failure
- netfilter:
- fix several GC related issues
- fix race between IPSET_CMD_CREATE and IPSET_CMD_SWAP
- eth: team: fix null-ptr-deref when team device type is changed
- eth: i40e: fix VF VLAN offloading when port VLAN is configured
- eth: ionic: fix 16bit math issue when PAGE_SIZE >= 64KB
Previous releases - always broken:
- core: fix ETH_P_1588 flow dissector
- mptcp: fix several connection hang-up conditions
- bpf:
- avoid deadlock when using queue and stack maps from NMI
- add override check to kprobe multi link attach
- hsr: properly parse HSRv1 supervisor frames.
- eth: igc: fix infinite initialization loop with early XDP redirect
- eth: octeon_ep: fix tx dma unmap len values in SG
- eth: hns3: fix GRE checksum offload issue"
* tag 'net-6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (87 commits)
sfc: handle error pointers returned by rhashtable_lookup_get_insert_fast()
igc: Expose tx-usecs coalesce setting to user
octeontx2-pf: Do xdp_do_flush() after redirects.
bnxt_en: Flush XDP for bnxt_poll_nitroa0()'s NAPI
net: ena: Flush XDP packets on error.
net/handshake: Fix memory leak in __sock_create() and sock_alloc_file()
net: hinic: Fix warning-hinic_set_vlan_fliter() warn: variable dereferenced before check 'hwdev'
netfilter: ipset: Fix race between IPSET_CMD_CREATE and IPSET_CMD_SWAP
netfilter: nf_tables: fix memleak when more than 255 elements expired
netfilter: nf_tables: disable toggling dormant table state more than once
vxlan: Add missing entries to vxlan_get_size()
net: rds: Fix possible NULL-pointer dereference
team: fix null-ptr-deref when team device type is changed
net: bridge: use DEV_STATS_INC()
net: hns3: add 5ms delay before clear firmware reset irq source
net: hns3: fix fail to delete tc flower rules during reset issue
net: hns3: only enable unicast promisc when mac table full
net: hns3: fix GRE checksum offload issue
net: hns3: add cmdq check for vf periodic service task
net: stmmac: fix incorrect rxq|txq_stats reference
...
Fix several compilation errors and warnings in memblock tests
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Merge tag 'fixes-2023-09-21' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull memblock test fixes from Mike Rapoport:
"Fix several compilation errors and warnings in memblock tests"
* tag 'fixes-2023-09-21' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
memblock tests: fix warning ‘struct seq_file’ declared inside parameter list
memblock tests: fix warning: "__ALIGN_KERNEL" redefined
memblock tests: Fix compilation errors.
A large collection of fixes around this time.
All small and mostly trivial fixes.
- Lots of fixes for the new -Wformat-truncation warnings
- A fix in ALSA rawmidi core regression and UMP handling
- Series of Cirrus codec fixes
- ASoC Intel and Realtek codec fixes
- Usual HD- and USB-audio quirks and AMD ASoC quirks
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Merge tag 'sound-6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A large collection of fixes around this time.
All small and mostly trivial fixes.
- Lots of fixes for the new -Wformat-truncation warnings
- A fix in ALSA rawmidi core regression and UMP handling
- Series of Cirrus codec fixes
- ASoC Intel and Realtek codec fixes
- Usual HD- and USB-audio quirks and AMD ASoC quirks"
* tag 'sound-6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (64 commits)
ALSA: hda/realtek - ALC287 Realtek I2S speaker platform support
ALSA: hda: cs35l56: Use the new RUNTIME_PM_OPS() macro
ALSA: usb-audio: scarlett_gen2: Fix another -Wformat-truncation warning
ALSA: rawmidi: Fix NULL dereference at proc read
ASoC: SOF: core: Only call sof_ops_free() on remove if the probe was successful
ASoC: SOF: Intel: MTL: Reduce the DSP init timeout
ASoC: cs42l43: Add shared IRQ flag for shutters
ASoC: imx-audmix: Fix return error with devm_clk_get()
ASoC: hdaudio.c: Add missing check for devm_kstrdup
ALSA: riptide: Fix -Wformat-truncation warning for longname string
ALSA: cs4231: Fix -Wformat-truncation warning for longname string
ALSA: ad1848: Fix -Wformat-truncation warning for longname string
ALSA: hda: generic: Check potential mixer name string truncation
ALSA: cmipci: Fix -Wformat-truncation warning
ALSA: firewire: Fix -Wformat-truncation warning for MIDI stream names
ALSA: firewire: Fix -Wformat-truncation warning for longname string
ALSA: xen: Fix -Wformat-truncation warning
ALSA: opti9x: Fix -Wformat-truncation warning
ALSA: es1688: Fix -Wformat-truncation warning
ALSA: cs4236: Fix -Wformat-truncation warning
...
Currently the AIA ONE_REG registers are reported by get-reg-list
as new registers for various vcpu_reg_list configs whenever Ssaia
is available on the host because Ssaia extension can only be
disabled by Smstateen extension which is not always available.
To tackle this, we should filter-out AIA ONE_REG registers only
when Ssaia can't be disabled for a VCPU.
Fixes: 477069398e ("KVM: riscv: selftests: Add get-reg-list test")
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Same set of ISA_EXT registers are not present on all host because
ISA_EXT registers are visible to the KVM user space based on the
ISA extensions available on the host. Also, disabling an ISA
extension using corresponding ISA_EXT register does not affect
the visibility of the ISA_EXT register itself.
Based on the above, we should filter-out all ISA_EXT registers.
Fixes: 477069398e ("KVM: riscv: selftests: Add get-reg-list test")
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Assert that vasprintf() succeeds as the "returned" string is undefined
on failure. Checking the result also eliminates the only warning with
default options in KVM selftests, i.e. is the only thing getting in the
way of compile with -Werror.
lib/test_util.c: In function ‘strdup_printf’:
lib/test_util.c:390:9: error: ignoring return value of ‘vasprintf’
declared with attribute ‘warn_unused_result’ [-Werror=unused-result]
390 | vasprintf(&str, fmt, ap);
| ^~~~~~~~~~~~~~~~~~~~~~~~
Don't bother capturing the return value, allegedly vasprintf() can only
fail due to a memory allocation failure.
Fixes: dfaf20af76 ("KVM: arm64: selftests: Replace str_with_index with strdup_printf")
Cc: Andrew Jones <ajones@ventanamicro.com>
Cc: Haibo Xu <haibo1.xu@intel.com>
Cc: Anup Patel <anup@brainfault.org>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Tested-by: Andrew Jones <ajones@ventanamicro.com>
Message-Id: <20230914010636.1391735-1-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
/proc/${pid}/smaps_rollup is not empty file even if process's address
space is empty, update the test.
Link: https://lkml.kernel.org/r/725e041f-e9df-4f3d-b267-d4cd2774a78d@p183
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Stefan Roesch <shr@devkernel.io>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
When dynamically linking, Address Sanitizer requires its library to be the
first one to be loaded; this is apparently to ensure that every call to
malloc is intercepted. If using LD_PRELOAD, those listed libraries will
be loaded before the libraries listed in the program's ELF and will
therefore violate this requirement, leading to the below failure and
output from ASan.
commit 58e2847ad2 ("selftests: line buffer test program's stdout")
modified the kselftest runner to force line buffering by forcing the test
programs to run through `stdbuf`. It turns out that stdbuf implements
line buffering by injecting a library via LD_PRELOAD. Therefore selftests
that use ASan started failing.
Fix this by statically linking libasan in the affected test programs,
using the `-static-libasan` option. Note this is already the default for
Clang, but not got GCC.
Test output sample for failing case:
TAP version 13
1..3
# timeout set to 300
# selftests: openat2: openat2_test
# ==4052==ASan runtime does not come first in initial library list;
you should either link runtime to your application or manually preload
it with LD_PRELOAD.
not ok 1 selftests: openat2: openat2_test # exit=1
# timeout set to 300
# selftests: openat2: resolve_test
# ==4070==ASan runtime does not come first in initial library list;
you should either link runtime to your application or manually preload
it with LD_PRELOAD.
not ok 2 selftests: openat2: resolve_test # exit=1
Link: https://lkml.kernel.org/r/20230912135048.1755771-1-ryan.roberts@arm.com
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Fixes: 58e2847ad2 ("selftests: line buffer test program's stdout")
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202309121342.97e2f008-oliver.sang@intel.com
Cc: David Hildenbrand <david@redhat.com>
Cc: Florent Revest <revest@chromium.org>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Peter Xu <peterx@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Tom Rix <trix@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Fix to unmount tracefs if the self-test mounted it to allow testing.
If tracefs was already mounted, this does nothing.
Suggested-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/all/29fce076-746c-4650-8358-b4e0fa215cf7@sirena.org.uk/
Fixes: a06023a8f7 ("selftests/user_events: Fix failures when user_events is not installed")
Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
The testsuite already has simply tests for HSRv0. The testuite would
have been able to notice the v1 breakage if it was there at the time.
Extend the testsuite to also cover HSRv1.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move the code and group into functions so it will be easier to extend
the test to HSRv1 so that both versions are covered.
Move the ping/test part into do_complete_ping_test() and the interface
setup into setup_hsr_interfaces().
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
The timeout in the while loop is never subtracted due wrong usage of
`let' leading to an endless loop if the former condition never gets
true.
Put the statement for let in quotes so it is parsed as a single
statement.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Running commands such as
# ./perf stat -e cs -- true
Segmentation fault (core dumped)
# ./perf stat -e cpu-clock-- true
Segmentation fault (core dumped)
#
dump core. This should not happen as these events are defined
even when no hardware PMU is available.
Debugging this reveals this call chain:
perf_pmus__find_by_type(type=1)
+--> pmu_read_sysfs(core_only=false)
+--> perf_pmu__find2(dirfd=3, name=0x152a113 "software")
+--> perf_pmu__lookup(pmus=0x14f0568 <other_pmus>, dirfd=3,
lookup_name=0x152a113 "software")
+--> perf_pmu__find_events_table (pmu=0x1532130)
Now the pmu is "software" and it tries to find a proper table
generated by the pmu-event generation process for s390:
# cd pmu-events/
# ./jevents.py s390 all /root/linux/tools/perf/pmu-events/arch |\
grep -E '^const struct pmu_table_entry'
const struct pmu_table_entry pmu_events__cf_z10[] = {
const struct pmu_table_entry pmu_events__cf_z13[] = {
const struct pmu_table_entry pmu_metrics__cf_z13[] = {
const struct pmu_table_entry pmu_events__cf_z14[] = {
const struct pmu_table_entry pmu_metrics__cf_z14[] = {
const struct pmu_table_entry pmu_events__cf_z15[] = {
const struct pmu_table_entry pmu_metrics__cf_z15[] = {
const struct pmu_table_entry pmu_events__cf_z16[] = {
const struct pmu_table_entry pmu_metrics__cf_z16[] = {
const struct pmu_table_entry pmu_events__cf_z196[] = {
const struct pmu_table_entry pmu_events__cf_zec12[] = {
const struct pmu_table_entry pmu_metrics__cf_zec12[] = {
const struct pmu_table_entry pmu_events__test_soc_cpu[] = {
const struct pmu_table_entry pmu_metrics__test_soc_cpu[] = {
const struct pmu_table_entry pmu_events__test_soc_sys[] = {
#
However event "software" is not listed, as can be seen in the
generated const struct pmu_events_map pmu_events_map[].
So in function perf_pmu__find_events_table(), the variable
table is initialized to NULL, but never set to a proper
value. The function scans all generated &pmu_events_map[]
tables, but no table matches, because the tables are
s390 CPU Measurement unit specific:
i = 0;
for (;;) {
const struct pmu_events_map *map = &pmu_events_map[i++];
if (!map->arch)
break;
--> the maps are there because the build generated them
if (!strcmp_cpuid_str(map->cpuid, cpuid)) {
table = &map->event_table;
break;
}
--> Since no matching CPU string the table var remains 0x0
}
free(cpuid);
if (!pmu)
return table;
--> The pmu is "software" so it exists and no return
--> and here perf dies because table is 0x0
for (i = 0; i < table->num_pmus; i++) {
...
}
return NULL;
Fix this and do not access the table variable. Instead return 0x0
which is the same return code when the for-loop was not successful.
Output after:
# ./perf stat -e cs -- true
Performance counter stats for 'true':
0 cs
0.000853105 seconds time elapsed
0.000061000 seconds user
0.000827000 seconds sys
# ./perf stat -e cpu-clock -- true
Performance counter stats for 'true':
0.25 msec cpu-clock # 0.341 CPUs utilized
0.000728383 seconds time elapsed
0.000055000 seconds user
0.000706000 seconds sys
# ./perf stat -e cycles -- true
Performance counter stats for 'true':
<not supported> cycles
0.000767298 seconds time elapsed
0.000055000 seconds user
0.000739000 seconds sys
#
Fixes: 7c52f10c0d ("perf pmu: Cache JSON events table")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: dengler@linux.ibm.com
Cc: gor@linux.ibm.com
Cc: hca@linux.ibm.com
Cc: sumanthk@linux.ibm.com
Cc: svens@linux.ibm.com
Link: https://lore.kernel.org/r/20230913125157.2790375-1-tmricht@linux.ibm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Fix an error detected by memory sanitizer:
```
==4033==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x55fb0fbedfc7 in read_alias_info tools/perf/util/pmu.c:457:6
#1 0x55fb0fbea339 in check_info_data tools/perf/util/pmu.c:1434:2
#2 0x55fb0fbea339 in perf_pmu__check_alias tools/perf/util/pmu.c:1504:9
#3 0x55fb0fbdca85 in parse_events_add_pmu tools/perf/util/parse-events.c:1429:32
#4 0x55fb0f965230 in parse_events_parse tools/perf/util/parse-events.y:299:6
#5 0x55fb0fbdf6b2 in parse_events__scanner tools/perf/util/parse-events.c:1822:8
#6 0x55fb0fbdf8c1 in __parse_events tools/perf/util/parse-events.c:2094:8
#7 0x55fb0fa8ffa9 in parse_events tools/perf/util/parse-events.h:41:9
#8 0x55fb0fa8ffa9 in test_event tools/perf/tests/parse-events.c:2393:8
#9 0x55fb0fa8f458 in test__pmu_events tools/perf/tests/parse-events.c:2551:15
#10 0x55fb0fa6d93f in run_test tools/perf/tests/builtin-test.c:242:9
#11 0x55fb0fa6d93f in test_and_print tools/perf/tests/builtin-test.c:271:8
#12 0x55fb0fa6d082 in __cmd_test tools/perf/tests/builtin-test.c:442:5
#13 0x55fb0fa6d082 in cmd_test tools/perf/tests/builtin-test.c:564:9
#14 0x55fb0f942720 in run_builtin tools/perf/perf.c:322:11
#15 0x55fb0f942486 in handle_internal_command tools/perf/perf.c:375:8
#16 0x55fb0f941dab in run_argv tools/perf/perf.c:419:2
#17 0x55fb0f941dab in main tools/perf/perf.c:535:3
```
Fixes: 7b723dbb96 ("perf pmu: Be lazy about loading event info files from sysfs")
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@arm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/r/20230914022425.1489035-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
The parser wraps all strings as Events, so the input is an
Event. Using a string would be bad as functions like Simplify are
called on the arguments, which wouldn't be present on a string.
Fixes: 9d5da30e4a ("perf jevents: Add a new expression builtin strcmp_cpuid_str()")
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@arm.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: John Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20230914022204.1488383-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Make part of an existing TODO conditional to avoid the following build
error:
```
tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c:26:14: error: cannot combine with previous 'char' declaration specifier
26 | typedef char bool;
| ^
include/stdbool.h:20:14: note: expanded from macro 'bool'
20 | #define bool _Bool
| ^
tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c:26:1: error: typedef requires a name [-Werror,-Wmissing-declarations]
26 | typedef char bool;
| ^~~~~~~~~~~~~~~~~
2 errors generated.
```
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20230913184957.230076-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Alexei Starovoitov says:
====================
The following pull-request contains BPF updates for your *net* tree.
We've added 21 non-merge commits during the last 8 day(s) which contain
a total of 21 files changed, 450 insertions(+), 36 deletions(-).
The main changes are:
1) Adjust bpf_mem_alloc buckets to match ksize(), from Hou Tao.
2) Check whether override is allowed in kprobe mult, from Jiri Olsa.
3) Fix btf_id symbol generation with ld.lld, from Jiri and Nick.
4) Fix potential deadlock when using queue and stack maps from NMI, from Toke Høiland-Jørgensen.
Please consider pulling these changes from:
git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git
Thanks a lot!
Also thanks to reporters, reviewers and testers of commits in this pull-request:
Alan Maguire, Biju Das, Björn Töpel, Dan Carpenter, Daniel Borkmann,
Eduard Zingerman, Hsin-Wei Hung, Marcus Seyfarth, Nathan Chancellor,
Satya Durga Srinivasu Prabhala, Song Liu, Stephen Rothwell
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This kselftest fixes update for Linux 6.6-rc2 consists of important
fixes to user_events test and ftrace test.
user_events test has been enabled for default run in Linux 6.6-rc1. The
following fixes are for bugs found since then:
- adds checks for dependencies and skips the test. user_events test
requires root access, and tracefs and user_events enabled. It leaves
tracefs mounted and a fix is in progress for that missing piece.
- creates user_events test-specific Kconfig fragments.
ftrace test fixes:
- unmounts tracefs for recovering environment. Fix identified during the
above mentioned user_events dependencies fix.
- adds softlink to latest log directory improving usage.
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Merge tag 'linux-kselftest-fixes-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull more kselftest fixes from Shuah Khan
"Fixes to user_events test and ftrace test.
The user_events test was enabled by default in Linux 6.6-rc1. The
following fixes are for bugs found since then:
- add checks for dependencies and skip the test if they aren't met.
The user_events test requires root access, and tracefs and
user_events enabled. It leaves tracefs mounted and a fix is in
progress for that missing piece.
- create user_events test-specific Kconfig fragments
ftrace test fixes:
- unmount tracefs for recovering environment. Fix identified during
the above mentioned user_events dependencies fix.
- adds softlink to latest log directory improving usage"
* tag 'linux-kselftest-fixes-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests: tracing: Fix to unmount tracefs for recovering environment
selftests: user_events: create test-specific Kconfig fragments
ftrace/selftests: Add softlink to latest log directory
selftests/user_events: Fix failures when user_events is not installed
Marcus and Satya reported an issue where BTF_ID macro generates same
symbol in separate objects and that breaks final vmlinux link.
ld.lld: error: ld-temp.o <inline asm>:14577:1: symbol
'__BTF_ID__struct__cgroup__624' is already defined
This can be triggered under specific configs when __COUNTER__ happens to
be the same for the same symbol in two different translation units,
which is already quite unlikely to happen.
Add __LINE__ number suffix to make BTF_ID symbol more unique, which is
not a complete fix, but it would help for now and meanwhile we can work
on better solution as suggested by Andrii.
Cc: stable@vger.kernel.org
Reported-by: Satya Durga Srinivasu Prabhala <quic_satyap@quicinc.com>
Reported-by: Marcus Seyfarth <m.seyfarth@gmail.com>
Closes: https://github.com/ClangBuiltLinux/linux/issues/1913
Debugged-by: Nathan Chancellor <nathan@kernel.org>
Co-developed-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/bpf/CAEf4Bzb5KQ2_LmhN769ifMeSJaWfebccUasQOfQKaOd0nQ51tw@mail.gmail.com/
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20230915-bpf_collision-v3-2-263fc519c21f@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Merge tag 'nf-23-09-13' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
netfilter pull request 23-09-13
====================
The following patchset contains Netfilter fixes for net:
1) Do not permit to remove rules from chain binding, otherwise
double rule release is possible, triggering UaF. This rule
deletion support does not make sense and userspace does not use
this. Problem exists since the introduction of chain binding support.
2) rbtree GC worker only collects the elements that have expired.
This operation is not destructive, therefore, turn write into
read spinlock to avoid datapath contention due to GC worker run.
This was not fixed in the recent GC fix batch in the 6.5 cycle.
3) pipapo set backend performs sync GC, therefore, catchall elements
must use sync GC queue variant. This bug was introduced in the
6.5 cycle with the recent GC fixes.
4) Stop GC run if memory allocation fails in pipapo set backend,
otherwise access to NULL pointer to GC transaction object might
occur. This bug was introduced in the 6.5 cycle with the recent
GC fixes.
5) rhash GC run uses an iterator that might hit EAGAIN to rewind,
triggering double-collection of the same element. This bug was
introduced in the 6.5 cycle with the recent GC fixes.
6) Do not permit to remove elements in anonymous sets, this type of
sets are populated once and then bound to rules. This fix is
similar to the chain binding patch coming first in this batch.
API permits since the very beginning but it has no use case from
userspace.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
tls.sendmsg_large and tls.sendmsg_multiple are trying to send through
the self->cfd socket (only configured with TLS_RX) and to receive through
the self->fd socket (only configured with TLS_TX), so they're not using
kTLS at all. Swap the sockets.
Fixes: 7f657d5bf5 ("selftests: tls: add selftests for TLS sockets")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Current release - regressions:
- bcmasp: fix possible OOB write in bcmasp_netfilt_get_all_active()
Previous releases - regressions:
- ipv4: fix one memleak in __inet_del_ifa()
- tcp: fix bind() regressions for v4-mapped-v6 addresses.
- tls: do not free tls_rec on async operation in bpf_exec_tx_verdict()
- dsa: fixes for SJA1105 FDB regressions
- veth: update XDP feature set when bringing up device
- igb: fix hangup when enabling SR-IOV
Previous releases - always broken:
- kcm: fix memory leak in error path of kcm_sendmsg()
- smc: fix data corruption in smcr_port_add
- microchip: fix possible memory leak for vcap_dup_rule()
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Quite unusually, this does not contains any fix coming from subtrees
(nf, ebpf, wifi, etc).
Current release - regressions:
- bcmasp: fix possible OOB write in bcmasp_netfilt_get_all_active()
Previous releases - regressions:
- ipv4: fix one memleak in __inet_del_ifa()
- tcp: fix bind() regressions for v4-mapped-v6 addresses.
- tls: do not free tls_rec on async operation in
bpf_exec_tx_verdict()
- dsa: fixes for SJA1105 FDB regressions
- veth: update XDP feature set when bringing up device
- igb: fix hangup when enabling SR-IOV
Previous releases - always broken:
- kcm: fix memory leak in error path of kcm_sendmsg()
- smc: fix data corruption in smcr_port_add
- microchip: fix possible memory leak for vcap_dup_rule()"
* tag 'net-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (37 commits)
kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg().
net: renesas: rswitch: Add spin lock protection for irq {un}mask
net: renesas: rswitch: Fix unmasking irq condition
igb: clean up in all error paths when enabling SR-IOV
ixgbe: fix timestamp configuration code
selftest: tcp: Add v4-mapped-v6 cases in bind_wildcard.c.
selftest: tcp: Move expected_errno into each test case in bind_wildcard.c.
selftest: tcp: Fix address length in bind_wildcard.c.
tcp: Fix bind() regression for v4-mapped-v6 non-wildcard address.
tcp: Fix bind() regression for v4-mapped-v6 wildcard address.
tcp: Factorise sk_family-independent comparison in inet_bind2_bucket_match(_addr_any).
ipv6: fix ip6_sock_set_addr_preferences() typo
veth: Update XDP feature set when bringing up device
net: macb: fix sleep inside spinlock
net/tls: do not free tls_rec on async operation in bpf_exec_tx_verdict()
net: ethernet: mtk_eth_soc: fix pse_port configuration for MT7988
net: ethernet: mtk_eth_soc: fix uninitialized variable
kcm: Fix memory leak in error path of kcm_sendmsg()
r8152: check budget for r8152_poll()
net: dsa: sja1105: block FDB accesses that are concurrent with a switch reset
...
Building memblock tests produces the following warning:
cc -I. -I../../include -Wall -O2 -fsanitize=address -fsanitize=undefined -D CONFIG_PHYS_ADDR_T_64BIT -c -o main.o main.c
In file included from tests/common.h:9,
from tests/basic_api.h:5,
from main.c:2:
./linux/memblock.h:601:50: warning: ‘struct seq_file’ declared inside parameter list will not be visible outside of this definition or declaration
601 | static inline void memtest_report_meminfo(struct seq_file *m) { }
| ^~~~~~~~
Add declaration of 'struct seq_file' to tools/include/linux/seq_file.h
to fix it.
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Building memblock tests produces the following warning:
cc -I. -I../../include -Wall -O2 -fsanitize=address -fsanitize=undefined -D CONFIG_PHYS_ADDR_T_64BIT -c -o main.o main.c
In file included from ../../include/linux/pfn.h:5,
from ./linux/memory_hotplug.h:6,
from ./linux/init.h:7,
from ./linux/memblock.h:11,
from tests/common.h:8,
from tests/basic_api.h:5,
from main.c:2:
../../include/linux/mm.h:14: warning: "__ALIGN_KERNEL" redefined
14 | #define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1)
|
In file included from ../../include/linux/mm.h:6,
from ../../include/linux/pfn.h:5,
from ./linux/memory_hotplug.h:6,
from ./linux/init.h:7,
from ./linux/memblock.h:11,
from tests/common.h:8,
from tests/basic_api.h:5,
from main.c:2:
../../include/uapi/linux/const.h:31: note: this is the location of the previous definition
31 | #define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (__typeof__(x))(a) - 1)
|
Remove definitions of __ALIGN_KERNEL and __ALIGN_KERNEL_MASK from
tools/include/linux/mm.h to fix it.
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
This patch fix the follow errors.
commit 61167ad5fe ("mm: pass nid to reserve_bootmem_region()") pass nid
parameter to reserve_bootmem_region(),
$ make -C tools/testing/memblock/
...
memblock.c: In function ‘memmap_init_reserved_pages’:
memblock.c:2111:25: error: too many arguments to function ‘reserve_bootmem_region’
2111 | reserve_bootmem_region(start, end, nid);
| ^~~~~~~~~~~~~~~~~~~~~~
../../include/linux/mm.h:32:6: note: declared here
32 | void reserve_bootmem_region(phys_addr_t start, phys_addr_t end);
| ^~~~~~~~~~~~~~~~~~~~~~
memblock.c:2122:17: error: too many arguments to function ‘reserve_bootmem_region’
2122 | reserve_bootmem_region(start, end, nid);
| ^~~~~~~~~~~~~~~~~~~~~~
commit dcdfdd40fa ("mm: Add support for unaccepted memory") call
accept_memory() in memblock.c
$ make -C tools/testing/memblock/
...
cc -fsanitize=address -fsanitize=undefined main.o memblock.o \
lib/slab.o mmzone.o slab.o tests/alloc_nid_api.o \
tests/alloc_helpers_api.o tests/alloc_api.o tests/basic_api.o \
tests/common.o tests/alloc_exact_nid_api.o -o main
/usr/bin/ld: memblock.o: in function `memblock_alloc_range_nid':
memblock.c:(.text+0x7ae4): undefined reference to `accept_memory'
Signed-off-by: Rong Tao <rongtao@cestc.cn>
Fixes: dcdfdd40fa ("mm: Add support for unaccepted memory")
Fixes: 61167ad5fe ("mm: pass nid to reserve_bootmem_region()")
Link: https://lore.kernel.org/r/tencent_6F19BC082167F15DF2A8D8BEFE8EF220F60A@qq.com
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Compare NETFILTER_CFG type audit logs emitted from kernel upon ruleset
modifications against expected output.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
We need to deny the attach_override test for arm64, denying the
whole kprobe_multi_test suite. Also making attach_override static.
Fixes: 7182e56411 ("selftests/bpf: Add kprobe_multi override test")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230913114711.499829-1-jolsa@kernel.org
- Add missing LOCKDOWN checks for eventfs callers
When LOCKDOWN is active for tracing, it causes inconsistent state
when some functions succeed and others fail.
- Use dput() to free the top level eventfs descriptor
There was a race between accesses and freeing it.
- Fix a long standing bug that eventfs exposed due to changing timings
by dynamically creating files. That is, If a event file is opened
for an instance, there's nothing preventing the instance from being
removed which will make accessing the files cause use-after-free bugs.
- Fix a ring buffer race that happens when iterating over the ring
buffer while writers are active. Check to make sure not to read
the event meta data if it's beyond the end of the ring buffer sub buffer.
- Fix the print trigger that disappeared because the test to create it
was looking for the event dir field being filled, but now it has the
"ef" field filled for the eventfs structure.
- Remove the unused "dir" field from the event structure.
- Fix the order of the trace_dynamic_info as it had it backwards for the
offset and len fields for which one was for which endianess.
- Fix NULL pointer dereference with eventfs_remove_rec()
If an allocation fails in one of the eventfs_add_*() functions,
the caller of it in event_subsystem_dir() or event_create_dir()
assigns the result to the structure. But it's assigning the ERR_PTR
and not NULL. This was passed to eventfs_remove_rec() which expects
either a good pointer or a NULL, not ERR_PTR. The fix is to not
assign the ERR_PTR to the structure, but to keep it NULL on error.
- Fix list_for_each_rcu() to use list_for_each_srcu() in
dcache_dir_open_wrapper(). One iteration of the code used RCU
but because it had to call sleepable code, it had to be changed
to use SRCU, but one of the iterations was missed.
- Fix synthetic event print function to use "as_u64" instead of
passing in a pointer to the union. To fix big/little endian issues,
the u64 that represented several types was turned into a union to
define the types properly.
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Merge tag 'trace-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Add missing LOCKDOWN checks for eventfs callers
When LOCKDOWN is active for tracing, it causes inconsistent state
when some functions succeed and others fail.
- Use dput() to free the top level eventfs descriptor
There was a race between accesses and freeing it.
- Fix a long standing bug that eventfs exposed due to changing timings
by dynamically creating files. That is, If a event file is opened for
an instance, there's nothing preventing the instance from being
removed which will make accessing the files cause use-after-free
bugs.
- Fix a ring buffer race that happens when iterating over the ring
buffer while writers are active. Check to make sure not to read the
event meta data if it's beyond the end of the ring buffer sub buffer.
- Fix the print trigger that disappeared because the test to create it
was looking for the event dir field being filled, but now it has the
"ef" field filled for the eventfs structure.
- Remove the unused "dir" field from the event structure.
- Fix the order of the trace_dynamic_info as it had it backwards for
the offset and len fields for which one was for which endianess.
- Fix NULL pointer dereference with eventfs_remove_rec()
If an allocation fails in one of the eventfs_add_*() functions, the
caller of it in event_subsystem_dir() or event_create_dir() assigns
the result to the structure. But it's assigning the ERR_PTR and not
NULL. This was passed to eventfs_remove_rec() which expects either a
good pointer or a NULL, not ERR_PTR. The fix is to not assign the
ERR_PTR to the structure, but to keep it NULL on error.
- Fix list_for_each_rcu() to use list_for_each_srcu() in
dcache_dir_open_wrapper(). One iteration of the code used RCU but
because it had to call sleepable code, it had to be changed to use
SRCU, but one of the iterations was missed.
- Fix synthetic event print function to use "as_u64" instead of passing
in a pointer to the union. To fix big/little endian issues, the u64
that represented several types was turned into a union to define the
types properly.
* tag 'trace-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
eventfs: Fix the NULL pointer dereference bug in eventfs_remove_rec()
tracefs/eventfs: Use list_for_each_srcu() in dcache_dir_open_wrapper()
tracing/synthetic: Print out u64 values properly
tracing/synthetic: Fix order of struct trace_dynamic_info
selftests/ftrace: Fix dependencies for some of the synthetic event tests
tracing: Remove unused trace_event_file dir field
tracing: Use the new eventfs descriptor for print trigger
ring-buffer: Do not attempt to read past "commit"
tracefs/eventfs: Free top level files on removal
ring-buffer: Avoid softlockup in ring_buffer_resize()
tracing: Have event inject files inc the trace array ref count
tracing: Have option files inc the trace array ref count
tracing: Have current_trace inc the trace array ref count
tracing: Have tracing_max_latency inc the trace array ref count
tracing: Increase trace array ref count on enable and filter files
tracefs/eventfs: Use dput to free the toplevel events directory
tracefs/eventfs: Add missing lockdown checks
tracefs: Add missing lockdown check to tracefs_create_dir()
Picking the changes from:
ad9ee11fdf ("drm/doc: document that PRIME import/export is always supported")
2ff4f6d410 ("drm/doc: document drm_event and its types")
9a2eabf48a ("drm/doc: use proper cross-references for sections")
c7a4722971 ("drm/syncobj: add IOCTL to register an eventfd")
Addressing these perf build warnings:
Warning: Kernel ABI header differences:
diff -u tools/include/uapi/drm/drm.h include/uapi/drm/drm.h
Now 'perf trace' and other code that might use the
tools/perf/trace/beauty autogenerated tables will be able to translate
this new ioctl code into a string:
$ tools/perf/trace/beauty/drm_ioctl.sh > before
$ cp include/uapi/drm/drm.h tools/include/uapi/drm/drm.h
$ tools/perf/trace/beauty/drm_ioctl.sh > after
$ diff -u before after
--- before 2023-09-13 08:54:45.170134002 -0300
+++ after 2023-09-13 08:55:06.612712776 -0300
@@ -108,6 +108,7 @@
[0xCC] = "SYNCOBJ_TRANSFER",
[0xCD] = "SYNCOBJ_TIMELINE_SIGNAL",
[0xCE] = "MODE_GETFB2",
+ [0xCF] = "SYNCOBJ_EVENTFD",
[DRM_COMMAND_BASE + 0x00] = "I915_INIT",
[DRM_COMMAND_BASE + 0x01] = "I915_FLUSH",
[DRM_COMMAND_BASE + 0x02] = "I915_FLIP",
$
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Simon Ser <contact@emersion.fr>
Link: https://lore.kernel.org/lkml/ZQGkh9qlhpKA%2FSMY@kernel.org/
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick up the changes from these csets:
1b5277c0ea ("x86/srso: Add SRSO_NO support")
8974eb5882 ("x86/speculation: Add Gather Data Sampling mitigation")
That cause no changes to tooling:
$ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before
$ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h
$ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after
$ diff -u before after
$
Just silences this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov (AMD) <bp@alien8.de>
Cc: Daniel Sneddon <daniel.sneddon@linux.intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/lkml/ZQGismCqcDddjEIQ@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To keep perf building in systems where types and defines used in this
new benchmark are not available, such as:
12 13.46 centos:stream : FAIL gcc version 8.5.0 20210514 (Red Hat 8.5.0-20) (GCC)
bench/sched-seccomp-notify.c: In function 'user_notif_syscall':
bench/sched-seccomp-notify.c:55:27: error: 'SECCOMP_RET_USER_NOTIF' undeclared (first use in this function); did you mean 'SECCOMP_RET_ERRNO'?
BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_USER_NOTIF),
^~~~~~~~~~~~~~~~~~~~~~
/git/perf-6.6.0-rc1/tools/include/uapi/linux/filter.h:49:59: note: in definition of macro 'BPF_STMT'
#define BPF_STMT(code, k) { (unsigned short)(code), 0, 0, k }
^
bench/sched-seccomp-notify.c:55:27: note: each undeclared identifier is reported only once for each function it appears in
BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_USER_NOTIF),
^~~~~~~~~~~~~~~~~~~~~~
/git/perf-6.6.0-rc1/tools/include/uapi/linux/filter.h:49:59: note: in definition of macro 'BPF_STMT'
#define BPF_STMT(code, k) { (unsigned short)(code), 0, 0, k }
^
bench/sched-seccomp-notify.c:55:3: error: missing initializer for field 'k' of 'struct sock_filter' [-Werror=missing-field-initializers]
BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_USER_NOTIF),
^~~~~~~~
In file included from bench/sched-seccomp-notify.c:5:
/git/perf-6.6.0-rc1/tools/include/uapi/linux/filter.h:28:8: note: 'k' declared here
__u32 k; /* Generic multiuse field */
^
bench/sched-seccomp-notify.c: In function 'user_notification_sync_loop':
bench/sched-seccomp-notify.c:70:28: error: storage size of 'resp' isn't known
struct seccomp_notif_resp resp;
^~~~
bench/sched-seccomp-notify.c:71:23: error: storage size of 'req' isn't known
struct seccomp_notif req;
^~~
bench/sched-seccomp-notify.c:76:23: error: 'SECCOMP_IOCTL_NOTIF_RECV' undeclared (first use in this function); did you mean 'SECCOMP_MODE_STRICT'?
if (ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req))
^~~~~~~~~~~~~~~~~~~~~~~~
SECCOMP_MODE_STRICT
bench/sched-seccomp-notify.c:86:23: error: 'SECCOMP_IOCTL_NOTIF_SEND' undeclared (first use in this function); did you mean 'SECCOMP_RET_ACTION'?
if (ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp))
^~~~~~~~~~~~~~~~~~~~~~~~
SECCOMP_RET_ACTION
bench/sched-seccomp-notify.c:71:23: error: unused variable 'req' [-Werror=unused-variable]
struct seccomp_notif req;
^~~
bench/sched-seccomp-notify.c:70:28: error: unused variable 'resp' [-Werror=unused-variable]
struct seccomp_notif_resp resp;
^~~~
14 11.31 debian:10 : FAIL gcc version 8.3.0 (Debian 8.3.0-6)
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andrei Vagin <avagin@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kees Kook <keescook@chromium.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/lkml/ZQGhjaojgOGtSNk6@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The new 'perf bench' for sched-seccomp-notify uses defines and types not
available in older systems where we want to have perf available, so grab
a copy of this UAPI from the kernel sources to allow that.
This will be checked in the future for drift from the original when we
build the perf tool, that will warn when that happens like:
make: Entering directory '/var/home/acme/git/perf-tools/tools/perf'
BUILD: Doing 'make -j32' parallel build
Warning: Kernel ABI header differences:
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andrei Vagin <avagin@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kees Kook <keescook@chromium.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/lkml/ZQGhMXtwX7RvV3ya@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
We add these 8 test cases in bind_wildcard.c to check bind() conflicts.
1st bind() 2nd bind()
--------- ---------
0.0.0.0 ::FFFF:0.0.0.0
::FFFF:0.0.0.0 0.0.0.0
0.0.0.0 ::FFFF:127.0.0.1
::FFFF:127.0.0.1 0.0.0.0
127.0.0.1 ::FFFF:0.0.0.0
::FFFF:0.0.0.0 127.0.0.1
127.0.0.1 ::FFFF:127.0.0.1
::FFFF:127.0.0.1 127.0.0.1
All test passed without bhash2 and with bhash2 and this series.
Before bhash2:
$ uname -r
6.0.0-rc1-00393-g0bf73255d3a3
$ ./bind_wildcard
...
# PASSED: 16 / 16 tests passed.
Just after bhash2:
$ uname -r
6.0.0-rc1-00394-g28044fc1d495
$ ./bind_wildcard
...
ok 15 bind_wildcard.v4_local_v6_v4mapped_local.v4_v6
not ok 16 bind_wildcard.v4_local_v6_v4mapped_local.v6_v4
# FAILED: 15 / 16 tests passed.
On net.git:
$ ./bind_wildcard
...
not ok 14 bind_wildcard.v4_local_v6_v4mapped_any.v6_v4
not ok 16 bind_wildcard.v4_local_v6_v4mapped_local.v6_v4
# FAILED: 13 / 16 tests passed.
With this series:
$ ./bind_wildcard
...
# PASSED: 16 / 16 tests passed.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is a preparation patch for the following patch.
Let's define expected_errno in each test case so that we can add other test
cases easily.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The selftest passes the IPv6 address length for an IPv4 address.
We should pass the correct length.
Note inet_bind_sk() does not check if the size is larger than
sizeof(struct sockaddr_in), so there is no real bug in this
selftest.
Fixes: 13715acf8a ("selftest: Add test for bind() conflicts.")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 1d56ade032 changed the function get_unpriv_disabled() to
return its results as a bool instead of updating a global variable, but
test_verifier was not updated to keep in line with these changes. Thus
unpriv_disabled is always false in test_verifier and unprivileged tests
are not properly skipped on systems with unprivileged bpf disabled.
Fixes: 1d56ade032 ("selftests/bpf: Unprivileged tests for test_loader.c")
Signed-off-by: Artem Savkov <asavkov@redhat.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20230912120631.213139-1-asavkov@redhat.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
