Skip to content

L
linux-davinci
Switch branch/tag
  1. 11 Mar, 2008 24 commits
  3. 10 Mar, 2008 3 commits
  5. 09 Mar, 2008 8 commits
  7. 08 Mar, 2008 3 commits
    • Roland McGrath's avatar
      Fix waitid si_code regression · 6efcae46
      Roland McGrath authored 
      In commit ee7c82da ("wait_task_stopped:
simplify and fix races with SIGCONT/SIGKILL/untrace"), the magic (short)
cast when storing si_code was lost in wait_task_stopped.  This leaks the
in-kernel CLD_* values that do not match what userland expects.
Signed-off-by: default avatarRoland McGrath <roland@redhat.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      6efcae46
    • Herbert Xu's avatar
      [CRYPTO] skcipher: Fix section mismatches · f13ba2f7
      Herbert Xu authored 
      The previous patch to move chainiv and eseqiv into blkcipher created
a section mismatch for the chainiv exit function which was also called
from __init.  This patch removes the __exit marking on it.
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
      f13ba2f7
    • Roland McGrath's avatar
      x86_64: make ptrace always sign-extend orig_ax to 64 bits · 84c6f604
      Roland McGrath authored 
      This makes 64-bit ptrace calls setting the 64-bit orig_ax field for a
32-bit task sign-extend the low 32 bits up to 64.  This matches what a
64-bit debugger expects when tracing a 32-bit task.

This follows on my "x86_64 ia32 syscall restart fix".  This didn't
matter until that was fixed.

The debugger ignores or zeros the high half of every register slot it
sets (including the orig_rax pseudo-register) uniformly.  It expects
that the setting of the low 32 bits always has the same meaning as a
32-bit debugger setting those same 32 bits with native 32-bit
facilities.

This never arose before because the syscall restart check never
matched any -ERESTART* values due to lack of sign extension.  Before
that fix, even 32-bit ptrace setting orig_eax to -1 failed to trigger
the restart check anyway.  So this was never noticed as a regression
of 64-bit debuggers vs 32-bit debuggers on the same 64-bit kernel.
Signed-off-by: default avatarRoland McGrath <roland@redhat.com>
[ Changed to just do the sign-extension unconditionally on x86-64,
  since orig_ax is always just a small integer and doesn't need
  the full 64-bit range ]
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      84c6f604
  9. 07 Mar, 2008 2 commits