Huang Ying ccae0f36d5 x86, fakenuma: Fix invalid starting node ID ... Commit: cc9aec03e5 ("x86/numa_emulation: Introduce uniform split capability") uses "-1" as the starting node ID, which causes the strange kernel log as follows, when "numa=fake=32G" is added to the kernel command line: Faking node -1 at [mem 0x0000000000000000-0x0000000893ffffff] (35136MB) Faking node 0 at [mem 0x0000001840000000-0x000000203fffffff] (32768MB) Faking node 1 at [mem 0x0000000894000000-0x000000183fffffff] (64192MB) Faking node 2 at [mem 0x0000002040000000-0x000000283fffffff] (32768MB) Faking node 3 at [mem 0x0000002840000000-0x000000303fffffff] (32768MB) And finally the kernel crashes: BUG: Bad page state in process swapper pfn:00011 page:(____ptrval____) refcount:0 mapcount:1 mapping:(____ptrval____) index:0x55cd7e44b270 pfn:0x11 failed to read mapping contents, not a valid kernel address? flags: 0x5(locked|uptodate) raw: 0000000000000005 000055cd7e44af30 000055cd7e44af50 0000000100000006 raw: 000055cd7e44b270 000055cd7e44b290 0000000000000000 000055cd7e44b510 page dumped because: page still charged to cgroup page->mem_cgroup:000055cd7e44b510 Modules linked in: CPU: 0 PID: 0 Comm: swapper Not tainted 5.9.0-rc2 #1 Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019 Call Trace: dump_stack+0x57/0x80 bad_page.cold+0x63/0x94 __free_pages_ok+0x33f/0x360 memblock_free_all+0x127/0x195 mem_init+0x23/0x1f5 start_kernel+0x219/0x4f5 secondary_startup_64+0xb6/0xc0 Fix this bug via using 0 as the starting node ID. This restores the original behavior before cc9aec03e5. [ mingo: Massaged the changelog. ] Fixes: cc9aec03e5 ("x86/numa_emulation: Introduce uniform split capability") Signed-off-by: "Huang, Ying" <ying.huang@intel.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20200904061047.612950-1-ying.huang@intel.com		2020-09-04 08:56:13 +02:00
..
pat	x86/mm/pat: Mark an intentional data race	2020-06-29 12:04:47 -07:00
amdtopology.c	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
cpu_entry_area.c	x86/entry: Remove DBn stacks	2020-06-11 15:15:23 +02:00
debug_pagetables.c	mm: introduce include/linux/pgtable.h	2020-06-09 09:39:13 -07:00
dump_pagetables.c	mm: don't include asm/pgtable.h if linux/mm.h is already included	2020-06-09 09:39:13 -07:00
extable.c	x86/entry: Treat BUG/WARN as NMI-like entries	2020-06-12 12:12:57 +02:00
fault.c	x86/mm/32: Bring back vmalloc faulting on x86_32	2020-09-03 11:23:35 +02:00
highmem_32.c	arch/kunmap_atomic: consolidate duplicate code	2020-06-04 19:06:22 -07:00
hugetlbpage.c	mm: remove unneeded includes of <asm/pgalloc.h>	2020-08-07 11:33:26 -07:00
ident_map.c	x86/mm: Stop pretending pgtable_l5_enabled is a variable	2018-05-19 11:56:57 +02:00
init_32.c	A set of locking fixes and updates:	2020-08-10 19:07:44 -07:00
init_64.c	x86/mm: use max memory block size on bare metal	2020-08-12 10:57:57 -07:00
init.c	x86/mm: Fix -Wmissing-prototypes warnings for arch/x86/mm/init.c	2020-06-17 10:45:46 +02:00
iomap_32.c	x86/mm/pat: Rename <asm/pat.h> => <asm/memtype.h>	2019-12-10 10:12:55 +01:00
ioremap.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
kasan_init_64.c	mm: don't include asm/pgtable.h if linux/mm.h is already included	2020-06-09 09:39:13 -07:00
kaslr.c	mm: remove unneeded includes of <asm/pgalloc.h>	2020-08-07 11:33:26 -07:00
kmmio.c	Misc changes:	2020-06-05 11:18:53 -07:00
maccess.c	maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault	2020-06-17 10:57:41 -07:00
Makefile	kbuild: remove cc-option test of -fno-stack-protector	2020-07-07 11:13:10 +09:00
mem_encrypt_boot.S	mm: introduce include/linux/pgtable.h	2020-06-09 09:39:13 -07:00
mem_encrypt_identity.c	Merge branch 'x86-kdump-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-07-09 11:52:34 -07:00
mem_encrypt.c	x86/mm: Fix -Wmissing-prototypes warnings for arch/x86/mm/init.c	2020-06-17 10:45:46 +02:00
mm_internal.h	x86/mm: thread pgprot_t through init_memory_mapping()	2020-04-10 15:36:21 -07:00
mmap.c	x86/mm/mmap: Fix -Wmissing-prototypes warnings	2020-04-22 20:19:48 +02:00
mmio-mod.c	mm: reorder includes after introduction of linux/pgtable.h	2020-06-09 09:39:13 -07:00
numa_32.c	x86/mm: Drop deprecated DISCONTIGMEM support for 32-bit	2020-05-28 18:34:30 +02:00
numa_64.c	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
numa_emulation.c	x86, fakenuma: Fix invalid starting node ID	2020-09-04 08:56:13 +02:00
numa_internal.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
numa.c	mm/memory_hotplug: introduce default dummy memory_add_physaddr_to_nid()	2020-08-12 10:57:57 -07:00
pf_in.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
pf_in.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
pgtable_32.c	mm: remove unneeded includes of <asm/pgalloc.h>	2020-08-07 11:33:26 -07:00
pgtable.c	mm: don't include asm/pgtable.h if linux/mm.h is already included	2020-06-09 09:39:13 -07:00
physaddr.c	mm, x86/mm: Untangle address space layout definitions from basic pgtable type definitions	2019-12-10 10:12:55 +01:00
physaddr.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
pkeys.c	mm/vma: introduce VM_ACCESS_FLAGS	2020-04-10 15:36:21 -07:00
pti.c	mm: remove unneeded includes of <asm/pgalloc.h>	2020-08-07 11:33:26 -07:00
setup_nx.c	mm: reorder includes after introduction of linux/pgtable.h	2020-06-09 09:39:13 -07:00
srat.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
testmmiotrace.c	remove ioremap_nocache and devm_ioremap_nocache	2020-01-06 09:45:59 +01:00
tlb.c	cpuidle: Make CPUIDLE_FLAG_TLB_FLUSHED generic	2020-08-26 12:41:53 +02:00