Author: neel
Date: Sun Mar 9 02:07:15 2014
New Revision: 262937
URL: http://svnweb.freebsd.org/changeset/base/262937
Log:
Fix panic "_mtx_lock_sleep: recursed on non-recursive mutex ttymtx" caused
when
acquiring the tty lock in bvm_tty_close(). Instead just assert that the tty
lock is held before calling callout_reset().
Modified:
head/sys/dev/bvm/bvm_console.c
Modified: head/sys/dev/bvm/bvm_console.c
==============================================================================
--- head/sys/dev/bvm/bvm_console.c Sun Mar 9 02:00:48 2014
(r262936)
+++ head/sys/dev/bvm/bvm_console.c Sun Mar 9 02:07:15 2014
(r262937)
@@ -128,9 +128,8 @@ static void
bvm_tty_close(struct tty *tp)
{
- tty_lock(tp);
+ tty_lock_assert(tp, MA_OWNED);
callout_stop(&bvm_timer);
- tty_unlock(tp);
}
static void
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