Author: kib
Date: Thu Oct 29 14:34:24 2009
New Revision: 198590
URL: http://svn.freebsd.org/changeset/base/198590
Log:
Trapsignal() calls kern_sigprocmask() when delivering catched signal
with proc lock held.
Reported and tested by: Mykola Dzham freebsd at levsha org ua
MFC after: 1 month
Modified:
head/sys/kern/kern_sig.c
Modified: head/sys/kern/kern_sig.c
==============================================================================
--- head/sys/kern/kern_sig.c Thu Oct 29 14:34:02 2009 (r198589)
+++ head/sys/kern/kern_sig.c Thu Oct 29 14:34:24 2009 (r198590)
@@ -1863,7 +1863,8 @@ trapsignal(struct thread *td, ksiginfo_t
if (!SIGISMEMBER(ps->ps_signodefer, sig)) {
SIGEMPTYSET(mask);
SIGADDSET(mask, sig);
- kern_sigprocmask(td, SIG_BLOCK, &mask, NULL, 0);
+ kern_sigprocmask(td, SIG_BLOCK, &mask, NULL,
+ SIGPROCMASK_PROC_LOCKED);
}
if (SIGISMEMBER(ps->ps_sigreset, sig)) {
/*
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