diff options
| author | Visa Hankala <visa@cvs.openbsd.org> | 2017-11-28 16:22:28 +0000 |
|---|---|---|
| committer | Visa Hankala <visa@cvs.openbsd.org> | 2017-11-28 16:22:28 +0000 |
| commit | faee966c2e46cd6f2aa65aab6c2fb92c51bf3b63 (patch) | |
| tree | b79ea7c6aa09c1f0a2acfaa578d1fdfc019dad21 /sys/kern/kern_sched.c | |
| parent | f3dee7913b56f8f8505740cc4f9d9faa8ef20697 (diff) | |
Raise the IPL of the sbar taskq to avoid lock order issues
with the kernel lock.
Fixes a deadlock seen by Hrvoje Popovski and dhill@.
OK mpi@, dhill@
Diffstat (limited to 'sys/kern/kern_sched.c')
| -rw-r--r-- | sys/kern/kern_sched.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/kern/kern_sched.c b/sys/kern/kern_sched.c index 50c86ec3b01..54705ee5019 100644 --- a/sys/kern/kern_sched.c +++ b/sys/kern/kern_sched.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_sched.c,v 1.45 2017/02/12 04:55:08 guenther Exp $ */ +/* $OpenBSD: kern_sched.c,v 1.46 2017/11/28 16:22:27 visa Exp $ */ /* * Copyright (c) 2007, 2008 Artur Grabowski <art@openbsd.org> * @@ -228,7 +228,7 @@ void sched_init_runqueues(void) { #ifdef MULTIPROCESSOR - sbartq = taskq_create("sbar", 1, IPL_NONE, + sbartq = taskq_create("sbar", 1, IPL_VM, TASKQ_MPSAFE | TASKQ_CANTSLEEP); if (sbartq == NULL) panic("unable to create sbar taskq"); |