mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-15 15:04:27 +08:00
ed8780e3f2
- Drop lazy TLB mode before switching to the temporary address space for
text patching. text_poke() switches to the temporary mm which clears
the lazy mode and restores the original mm afterwards. Due to clearing
lazy mode this might restore a already dead mm if exit_mmap() runs in
parallel on another CPU.
- Document the x32 syscall design fail vs. syscall numbers 512-547
properly.
- Fix the ORC unwinder to handle the inactive task frame correctly. This
was unearthed due to the slightly different code generation of GCC10.
- Use an up to date screen_info for the boot params of kexec instead of
the possibly stale and invalid version which happened to be valid when
the kexec kernel was loaded.
-----BEGIN PGP SIGNATURE-----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=e60h
-----END PGP SIGNATURE-----
Merge tag 'x86-urgent-2020-10-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A couple of x86 fixes which missed rc1 due to my stupidity:
- Drop lazy TLB mode before switching to the temporary address space
for text patching.
text_poke() switches to the temporary mm which clears the lazy mode
and restores the original mm afterwards. Due to clearing lazy mode
this might restore a already dead mm if exit_mmap() runs in
parallel on another CPU.
- Document the x32 syscall design fail vs. syscall numbers 512-547
properly.
- Fix the ORC unwinder to handle the inactive task frame correctly.
This was unearthed due to the slightly different code generation of
gcc-10.
- Use an up to date screen_info for the boot params of kexec instead
of the possibly stale and invalid version which happened to be
valid when the kexec kernel was loaded"
* tag 'x86-urgent-2020-10-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/alternative: Don't call text_poke() in lazy TLB mode
x86/syscalls: Document the fact that syscalls 512-547 are a legacy mistake
x86/unwind/orc: Fix inactive tasks with stack pointer in %sp on GCC 10 compiled kernels
hyperv_fb: Update screen_info after removing old framebuffer
x86/kexec: Use up-to-dated screen_info copy to fill boot params
|
||
|---|---|---|
| .. | ||
| syscalls | ||
| vdso | ||
| vsyscall | ||
| calling.h | ||
| common.c | ||
| entry_32.S | ||
| entry_64_compat.S | ||
| entry_64.S | ||
| Makefile | ||
| syscall_32.c | ||
| syscall_64.c | ||
| syscall_x32.c | ||
| thunk_32.S | ||
| thunk_64.S | ||