On Wed, Feb 12 2014, Fengguang Wu wrote: > Hi Jens, > > I got the below dmesg and the first bad commit is > > commit f2298c0403b0dfcaef637eba0c02c4a06d7a25ab > Author: Jens Axboe <ax...@kernel.dk> > CommitDate: Fri Oct 25 11:56:00 2013 +0100
Hmm dunno, the below looks more like a logfs issue, given the calltrace. The fact that null_blk is the device used is probably less interesting. > [ 18.158432] VFS: could not find a valid V7 on nullb0. > [ 18.159280] LogFS: Start mount 1 > [ 18.159732] LogFS: Start unmounting > [ 18.160368] INFO: trying to register non-static key. > [ 18.160986] the code is fine but needs lockdep annotation. > [ 18.161675] turning off the locking correctness validator. > [ 18.162341] CPU: 0 PID: 634 Comm: mount Not tainted > 3.14.0-rc2-wl-01363-gf8a1366 #2 > [ 18.163266] 0000000000000000 ffff88000b839c00 ffffffff827922a5 > ffff88000b839cb8 > [ 18.163516] ffffffff810c0202 ffff88000bac1008 ffff88000b839c98 > ffff88000b839c58 > [ 18.163516] 0000000000000002 ffff88000bb4f000 ffff880000000000 > ffffffff00000001 > [ 18.163516] Call Trace: > [ 18.163516] [<ffffffff827922a5>] dump_stack+0x19/0x1b > [ 18.163516] [<ffffffff810c0202>] __lock_acquire+0x252/0x1d80 > [ 18.163516] [<ffffffff8115cc10>] ? writeback_inodes_sb_nr+0xc0/0xe0 > [ 18.163516] [<ffffffff81296146>] ? logfs_get_wblocks+0x76/0x90 > [ 18.163516] [<ffffffff810c2590>] lock_acquire+0x70/0x90 > [ 18.163516] [<ffffffff81296146>] ? logfs_get_wblocks+0x76/0x90 > [ 18.163516] [<ffffffff827a26f1>] mutex_lock_nested+0x61/0x380 > [ 18.163516] [<ffffffff81296146>] ? logfs_get_wblocks+0x76/0x90 > [ 18.163516] [<ffffffff81296146>] logfs_get_wblocks+0x76/0x90 > [ 18.163516] [<ffffffff81293024>] logfs_sync_fs+0x14/0x30 > [ 18.163516] [<ffffffff81160929>] sync_filesystem+0x59/0xb0 > [ 18.163516] [<ffffffff8129a327>] logfs_kill_sb+0x27/0xf0 > [ 18.163516] [<ffffffff81137afd>] deactivate_locked_super+0x2d/0x50 > [ 18.163516] [<ffffffff8129b1f3>] logfs_mount+0x763/0x7e0 > [ 18.163516] [<ffffffff811391d0>] mount_fs+0x10/0xe0 > [ 18.163516] [<ffffffff81153f49>] vfs_kern_mount+0x69/0x140 > [ 18.163516] [<ffffffff827a5efc>] ? _raw_read_unlock+0x2c/0x50 > [ 18.163516] [<ffffffff81156354>] do_mount+0x934/0xb90 > [ 18.163516] [<ffffffff81111462>] ? might_fault+0x52/0xb0 > [ 18.163516] [<ffffffff811040a5>] ? strndup_user+0x35/0x50 > [ 18.163516] [<ffffffff811568fc>] SyS_mount+0x8c/0xd0 > [ 18.163516] [<ffffffff827a713b>] system_call_fastpath+0x1a/0x1f -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/