https://bugzilla.kernel.org/show_bug.cgi?id=29402 --- Comment #8 from Eric Whitney <eric.whitney@xxxxxx> 2011-02-25 03:25:46 --- (sorry - network hiccup - starting from the top again) bio_batch_end_io() blkdev_issue_zeroout() ... wait_for_completion(&wait) complete(bb->wait) ... ... issued != atomic_read(&bb.done) ... wait_for_completion(&wait) atomic_inc(&bb->done) ... <wedge while waiting for the completion that won't be coming> At any rate, that's what I think is happening - we're missing the last "inc" and then we're not getting the completion notification we need to finish in blkdev_issue_zeroout(). I'll attach the first hung task trace from the console for reference. Thanks! Eric -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html