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When processing a timeout() callout and returning it to the free

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list, set `curr_callout' to NULL. This ensures that we won't attempt
to cancel the current callout if the original callout structure
gets recycled while we wait to acquire Giant.

This is reported to fix an intermittent syscons problem that was
introduced by revision 1.96.
This commit is contained in:
Ian Dowse 2005-02-11 00:14:00 +00:00
parent f7167d3e91
commit 57c037be1c
1 changed files with 2 additions and 1 deletions
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3
sys/kern/kern_timeout.c
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@ -251,11 +251,12 @@ softclock(void *dummy)
c->c_flags = CALLOUT_LOCAL_ALLOC;
SLIST_INSERT_HEAD(&callfree, c,
c_links.sle);
curr_callout = NULL;
} else {
c->c_flags =
(c->c_flags & ~CALLOUT_PENDING);
curr_callout = c;
}
curr_callout = c;
curr_cancelled = 0;
mtx_unlock_spin(&callout_lock);
if (c_mtx != NULL) {