On Wed, Jan 27, 2016 at 02:57:25PM +0000, Yannis Aribaud wrote: > Hi, > > After several weeks using the 4.2.6 kernel + patches from Ewheeler we just ran into a crash again. > This time the kernel was still running and the server was responsive but not able to do any IO on the bcache devices. > > [696983.683498] bcache_writebac D ffffffff810643df 0 5741 2 0x00000000 > [696983.683505] ffff88103d01f180 0000000000000046 ffff88107842d000 ffffffff811a95cd > [696983.683510] 0000000000000000 ffff8810388c4000 ffff88103d01f180 0000000000000001 > [696983.683514] ffff882034ae0c10 0000000000000000 ffff882034ae0000 ffffffff8139601e > [696983.683518] Call Trace: > [696983.683530] [<ffffffff811a95cd>] ? blk_queue_bio+0x262/0x279 > [696983.683539] [<ffffffff8139601e>] ? schedule+0x6b/0x78 > [696983.683553] [<ffffffffa032ce9b>] ? closure_sync+0x66/0x91 [bcache] > [696983.683563] [<ffffffffa033c89f>] ? bch_writeback_thread+0x622/0x6b5 [bcache] > [696983.683569] [<ffffffff8100265c>] ? __switch_to+0x1de/0x3f7 > [696983.683578] [<ffffffffa033c89f>] ? bch_writeback_thread+0x622/0x6b5 [bcache] > [696983.683586] [<ffffffffa033c27d>] ? write_dirty_finish+0x1bf/0x1bf [bcache] > [696983.683594] [<ffffffff810589d6>] ? kthread+0x99/0xa1 > [696983.683598] [<ffffffff8105893d>] ? kthread_parkme+0x16/0x16 > [696983.683603] [<ffffffff813986df>] ? ret_from_fork+0x3f/0x70 > [696983.683607] [<ffffffff8105893d>] ? kthread_parkme+0x16/0x16 > > Don't know if this help. > Unfortunately I thing that we will rollback and stop using Bcache unless this is really fixed :/ > Hmm, ok. I don't have a bcache setup running at the moment, but I'll have a look at it again once I can find some spare time. If anyone else want's to jump the granade (Eric?) go ahead. > Regards, > > 7 décembre 2015 11:35 "Yannis Aribaud" <bugs@xxxxxxxxxx> a écrit: > > Hi everyone, > > > > It's been one week I'm using a 4.2.6 kernel merged with the Bcache patches from Ewheeler and no > > signs of any kind of trouble I had before. > > Thus it seems your patches fix my soft lockup issue. > > It's currently running on one of my ceph nodes, I will certainly push it on the others during the > > next weeks. > > > > It would be great to merge thoses patches upstream since it seems that using Bcache in production > > requires those fixes. > > > > Anyway, thanks to all of you for your time, advices and work on Bcache. I'll keep you updated. > > > > Regards, > > -- > > Open is better > -- > Open is better -- Johannes Thumshirn Storage jthumshirn@xxxxxxx +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850 -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
