On Fri, 2013-02-22 at 19:52 +0800, majianpeng wrote: > > Feb 20 17:47:35 sanclient kernel: [4946b55d-bb0a-7fce-54c8-ac90615dabc1] Attempting to freeze array: barrier (1), nr_waiting (1), nr_pending (5), nr_queued (3) > > Feb 20 17:47:35 sanclient kernel: [4946b55d-bb0a-7fce-54c8-ac90615dabc1] Awaiting barrier: barrier (1), nr_waiting (2), nr_pending (5), nr_queued (3) > > Feb 20 17:47:38 sanclient kernel: [4946b55d-bb0a-7fce-54c8-ac90615dabc1] Awaiting barrier: barrier (1), nr_waiting (3), nr_pending (5), nr_queued (3) > From those message,there's a request which will be completed or met error. > If completed, the ->nr_pening decrease one. > If request met error, it add ->retry_list and the ->nr_queued add one. > So in two conditions,the hung will be happened. > What's the state of this request? Maybe this bug caused by lower layer drivers. That's a good question. Do you have any suggestion as to how I might answer it? As I say, I can readily reproduce it so if you have some insight into how to capture that info I can do it with no problem. Also, I don't know for sure but it didn't sound like Joe Lawrence is using the same lower layer drivers but he has the same problem. Tregaron -- 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
