diff options
Diffstat (limited to 'sys/kern/kern_sig.c')
| -rw-r--r-- | sys/kern/kern_sig.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/kern/kern_sig.c b/sys/kern/kern_sig.c index 6fcea781fb50..49e8307cf4c3 100644 --- a/sys/kern/kern_sig.c +++ b/sys/kern/kern_sig.c @@ -1040,6 +1040,8 @@ pgsignal(pgrp, sig, checkctty) * Send a signal caused by a trap to the current process. * If it will be caught immediately, deliver it with correct code. * Otherwise, post it normally. + * + * MPSAFE */ void trapsignal(p, sig, code) @@ -1049,6 +1051,7 @@ trapsignal(p, sig, code) { register struct sigacts *ps = p->p_sigacts; + mtx_lock(&Giant); PROC_LOCK(p); if ((p->p_flag & P_TRACED) == 0 && SIGISMEMBER(p->p_sigcatch, sig) && !SIGISMEMBER(p->p_sigmask, sig)) { @@ -1081,6 +1084,7 @@ trapsignal(p, sig, code) psignal(p, sig); } PROC_UNLOCK(p); + mtx_unlock(&Giant); } /* |