git: DragonFly_RELEASE_2_10 kernel - Fix signal delivery races
commit 025d695a653d667f8d06e460e9e0e625ded69efb
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date: Fri Jul 29 01:19:29 2011 -0700
kernel - Fix signal delivery races
* The send side was using p->p_token but the processing code from trap
was still using the mp_lock. Fix the trap processing code to use
p->p_token.
* This fixes several nasty races that can cause signals to be lost and
vkernels to freeze, and possibly other programs which depend on signals
between threads.
Summary of changes:
sys/kern/kern_sig.c | 2 ++
sys/platform/pc32/i386/trap.c | 8 ++++----
sys/platform/pc64/x86_64/trap.c | 8 ++++----
sys/platform/vkernel/i386/trap.c | 8 ++++----
sys/platform/vkernel64/x86_64/trap.c | 8 ++++----
5 files changed, 18 insertions(+), 16 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/025d695a653d667f8d06e460e9e0e625ded69efb
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