I hit another BUG_ON with e240c1839d11152b0355442. In __get_priority_stripe(), stripe count equals to 0 initially. Between atomic_inc and BUG_ON, get_active_stripe() finds the stripe. So the stripe count isn't 1 any more. Signed-off-by: Shaohua Li <shli@xxxxxxxxxxxx> --- drivers/md/raid5.c | 1 - 1 file changed, 1 deletion(-) Index: linux/drivers/md/raid5.c =================================================================== --- linux.orig/drivers/md/raid5.c 2014-04-14 11:44:11.448492119 +0800 +++ linux/drivers/md/raid5.c 2014-04-14 11:52:19.158359774 +0800 @@ -4371,7 +4371,6 @@ static struct stripe_head *__get_priorit } list_del_init(&sh->lru); atomic_inc(&sh->count); - BUG_ON(atomic_read(&sh->count) != 1); return sh; } -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html