Hi, I get the below crash when cold booting OCTEON router with USB disk as rootfs. Bisected to: commit bf2cf3baa20b0a6cd2d08707ef05dc0e992a8aa0 Author: Bart Van Assche <bart.vanassche@xxxxxxxxxxx> Date: Fri Sep 18 17:23:42 2015 -0700 scsi: Fix a bdi reregistration race Reverting the patch makes the board boot fine again. A. Waiting for rootfs media to appear... Press ENTER to interrupt. [ 1.540522] usb 1-1: new high-speed USB device number 2 using ehci-platform [ 1.699752] usb-storage 1-1:1.0: USB Mass Storage device detected [ 1.706054] scsi host0: usb-storage 1-1:1.0 [ 2.702105] scsi 0:0:0:0: Direct-Access Ext Hard Disk PQ: 0 ANSI: 5 [ 2.714214] sd 0:0:0:0: [sda] Spinning up disk... [ 3.720503] ... [ 6.674040] usb 1-1: USB disconnect, device number 2 [ 6.750508] .ready [ 6.752558] sd 0:0:0:0: [sda] Read Capacity(10) failed: Result: hostbyte=0x00 driverbyte=0x04 [ 6.761112] sd 0:0:0:0: [sda] Sense not available. [ 6.765918] sd 0:0:0:0: [sda] Write Protect is off [ 6.770741] sd 0:0:0:0: [sda] Asking for cache data failed [ 6.776236] sd 0:0:0:0: [sda] Assuming drive cache: write through [ 6.782745] ------------[ cut here ]------------ [ 6.787383] WARNING: CPU: 1 PID: 15 at /home/aaro/git/linux/block/genhd.c:626 add_disk+0x41c/0x478() [ 6.796549] Modules linked in: [ 6.799624] CPU: 1 PID: 15 Comm: kworker/u4:1 Not tainted 4.4.0-rc1-octeon-los_73f9f-00002-gd81c963 #1 [ 6.808959] Workqueue: events_unbound async_run_entry_fn [ 6.814296] Stack : 0000000000000001 0000000000000004 ffffffff81760000 0000000000000000 0000000000000001 0000000000000000 0000000000000000 0000000000000000 ffffffff81f3abc8 ffffffff811893f8 0000000000000000 ffffffff81f3a758 0000000000000000 0000000000000002 0000000000000001 ffffffff81f40000 ffffffff816b78f8 80000000330e9000 0000000000000272 0000000000000009 ffffffff813471cc 0000000000000000 80000000330086a0 8000000033008400 80000000330e9000 ffffffff811cea44 800000003314bb68 8000000033008400 80000000330e9000 800000003314ba70 800000003314bb88 ffffffff8135331c 000000000000015f ffffffff813c0900 000000000000006e 0000000000000000 735f756e626f756e ffffffff81124190 0000000000000000 0000000000000000 ... [ 6.879950] Call Trace: [ 6.882414] [<ffffffff81124190>] show_stack+0x88/0xa8 [ 6.887475] [<ffffffff8135331c>] dump_stack+0x6c/0x90 [ 6.892549] [<ffffffff81141cb4>] warn_slowpath_common+0x94/0xd8 [ 6.898481] [<ffffffff813471cc>] add_disk+0x41c/0x478 [ 6.903552] [<ffffffff81400794>] sd_probe_async+0xfc/0x218 [ 6.909047] [<ffffffff8116373c>] async_run_entry_fn+0x4c/0x120 [ 6.914898] [<ffffffff8115a83c>] process_one_work+0x17c/0x438 [ 6.920663] [<ffffffff8115ac60>] worker_thread+0x168/0x5e0 [ 6.926159] [<ffffffff81160dc4>] kthread+0xd4/0xf0 [ 6.930968] [<ffffffff8111e9d8>] ret_from_kernel_thread+0x14/0x1c [ 6.937069] [ 6.938562] ---[ end trace a84c8a326c0c5a61 ]--- [ 6.943227] sd 0:0:0:0: [sda] Attached SCSI disk [ 6.948177] ------------[ cut here ]------------ [ 6.952831] WARNING: CPU: 0 PID: 147 at /home/aaro/git/linux/mm/backing-dev.c:856 bdi_exit+0xbc/0xe0() [ 6.962159] Modules linked in: [ 6.965232] CPU: 0 PID: 147 Comm: kworker/0:1 Tainted: G W 4.4.0-rc1-octeon-los_73f9f-00002-gd81c963 #1 [ 6.975778] Workqueue: usb_hub_wq hub_event [ 6.979974] Stack : 0000000000000000 0000000000000004 ffffffff81760000 0000000000000000 0000000000000001 0000000000000000 0000000000000000 0000000000000000 ffffffff81f3abc8 ffffffff811893f8 0000000000000000 ffffffff81f3a758 0000000000000000 0000000000000002 0000000000000001 ffffffff81f40000 ffffffff816b78f8 800000003324f480 0000000000000358 0000000000000009 ffffffff811eef74 800000003311b890 0000000000000001 80000000333b03c8 0000000000000001 ffffffff811cea44 80000000333436c8 80000000333b03c8 0000000000000001 80000000333435d0 80000000333436e8 ffffffff8135331c 00000000000001f3 ffffffff813c0900 0000000000000074 0000000000000000 0000000000000005 ffffffff81124190 0000000000000000 0000000000000000 ... [ 7.045656] Call Trace: [ 7.048112] [<ffffffff81124190>] show_stack+0x88/0xa8 [ 7.053192] [<ffffffff8135331c>] dump_stack+0x6c/0x90 [ 7.058253] [<ffffffff81141cb4>] warn_slowpath_common+0x94/0xd8 [ 7.064211] [<ffffffff811eef74>] bdi_exit+0xbc/0xe0 [ 7.069099] [<ffffffff81336eb0>] blk_release_queue+0x20/0xf0 [ 7.074786] [<ffffffff8135889c>] kobject_put+0xd4/0x128 [ 7.080022] [<ffffffff81346b9c>] disk_release+0xa4/0xf0 [ 7.085276] [<ffffffff813cc1ac>] device_release+0x3c/0xc0 [ 7.090697] [<ffffffff8135889c>] kobject_put+0xd4/0x128 [ 7.095933] [<ffffffff813fb4d8>] scsi_disk_release+0x60/0x88 [ 7.101611] [<ffffffff813cc1ac>] device_release+0x3c/0xc0 [ 7.107020] [<ffffffff8135889c>] kobject_put+0xd4/0x128 [ 7.112264] [<ffffffff813fe654>] sd_remove+0x9c/0xc8 [ 7.117240] [<ffffffff813d0e78>] __device_release_driver+0x90/0x148 [ 7.123527] [<ffffffff813d0f58>] device_release_driver+0x28/0x40 [ 7.129543] [<ffffffff813d0608>] bus_remove_device+0xe0/0x140 [ 7.135307] [<ffffffff813ccc48>] device_del+0x118/0x228 [ 7.140555] [<ffffffff813f80a0>] __scsi_remove_device+0xd0/0xd8 [ 7.146485] [<ffffffff813f624c>] scsi_forget_host+0x84/0x98 [ 7.152080] [<ffffffff813ea408>] scsi_remove_host+0x80/0x178 [ 7.157751] [<ffffffff8148f140>] usb_stor_disconnect+0x50/0x118 [ 7.163693] [<ffffffff814692b4>] usb_unbind_interface+0x84/0x2d0 [ 7.169710] [<ffffffff813d0e78>] __device_release_driver+0x90/0x148 [ 7.175997] [<ffffffff813d0f58>] device_release_driver+0x28/0x40 [ 7.182025] [<ffffffff813d0608>] bus_remove_device+0xe0/0x140 [ 7.187781] [<ffffffff813ccc48>] device_del+0x118/0x228 [ 7.193029] [<ffffffff81466714>] usb_disable_device+0xcc/0x268 [ 7.198876] [<ffffffff8145c490>] usb_disconnect+0x88/0x2e8 [ 7.204381] [<ffffffff8145e58c>] hub_event+0x704/0x1298 [ 7.209616] [<ffffffff8115a83c>] process_one_work+0x17c/0x438 [ 7.215381] [<ffffffff8115ac60>] worker_thread+0x168/0x5e0 [ 7.220888] [<ffffffff81160dc4>] kthread+0xd4/0xf0 [ 7.225690] [<ffffffff8111e9d8>] ret_from_kernel_thread+0x14/0x1c [ 7.231800] [ 7.233294] ---[ end trace a84c8a326c0c5a62 ]--- [ 14.981154] usb 1-1: new high-speed USB device number 3 using ehci-platform [ 15.149942] usb-storage 1-1:1.0: USB Mass Storage device detected [ 15.156250] scsi host1: usb-storage 1-1:1.0 [ 16.162292] scsi 1:0:0:0: Direct-Access Ext Hard Disk PQ: 0 ANSI: 5 [ 16.172039] sd 1:0:0:0: [sda] 976773168 512-byte logical blocks: (500 GB/465 GiB) [ 16.181665] sd 1:0:0:0: [sda] Write Protect is off [ 16.187266] sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 16.196375] ------------[ cut here ]------------ [ 16.201023] WARNING: CPU: 0 PID: 15 at /home/aaro/git/linux/fs/sysfs/dir.c:31 sysfs_warn_dup+0x68/0xc8() [ 16.210529] sysfs: cannot create duplicate filename '/devices/virtual/bdi/8:0' [ 16.217769] Modules linked in: [ 16.220853] CPU: 0 PID: 15 Comm: kworker/u4:1 Tainted: G W 4.4.0-rc1-octeon-los_73f9f-00002-gd81c963 #1 [ 16.231409] Workqueue: events_unbound async_run_entry_fn [ 16.236746] Stack : 0000000000000000 0000000000000004 ffffffff81760000 0000000000000000 0000000000000001 0000000000000000 0000000000000000 0000000000000000 ffffffff81f3abc8 ffffffff811893f8 0000000000000000 ffffffff81f3a758 0000000000000000 0000000000000002 0000000000000001 ffffffff81f40000 ffffffff816b78f8 80000000330e9000 000000000000001f 0000000000000009 ffffffff8129add8 8000000032316c10 0000000000000000 800000003314bc28 800000003313a300 ffffffff811cea44 800000003314b928 800000003314bc28 800000003313a300 800000003314b830 800000003314b948 ffffffff8135331c 00000000000002c5 ffffffff813c0900 000000000000006e 0000000000000000 735f756e626f756e ffffffff81124190 0000000000000000 0000000000000000 ... [ 16.302416] Call Trace: [ 16.304872] [<ffffffff81124190>] show_stack+0x88/0xa8 [ 16.309933] [<ffffffff8135331c>] dump_stack+0x6c/0x90 [ 16.315003] [<ffffffff81141cb4>] warn_slowpath_common+0x94/0xd8 [ 16.320942] [<ffffffff81141d30>] warn_slowpath_fmt+0x38/0x48 [ 16.326612] [<ffffffff8129add8>] sysfs_warn_dup+0x68/0xc8 [ 16.332035] [<ffffffff8129af60>] sysfs_create_dir_ns+0xa0/0xb8 [ 16.337880] [<ffffffff8135922c>] kobject_add_internal+0xb4/0x328 [ 16.343906] [<ffffffff81359504>] kobject_add+0x64/0xc0 [ 16.349055] [<ffffffff813cddd8>] device_add+0xe8/0x5d8 [ 16.354212] [<ffffffff813ce588>] device_create_groups_vargs+0x140/0x150 [ 16.360856] [<ffffffff811ee458>] bdi_register+0x70/0x128 [ 16.366178] [<ffffffff81346ee8>] add_disk+0x138/0x478 [ 16.371254] [<ffffffff81400794>] sd_probe_async+0xfc/0x218 [ 16.376749] [<ffffffff8116373c>] async_run_entry_fn+0x4c/0x120 [ 16.382601] [<ffffffff8115a83c>] process_one_work+0x17c/0x438 [ 16.388357] [<ffffffff8115ac60>] worker_thread+0x168/0x5e0 [ 16.393861] [<ffffffff81160dc4>] kthread+0xd4/0xf0 [ 16.398662] [<ffffffff8111e9d8>] ret_from_kernel_thread+0x14/0x1c [ 16.404771] [ 16.406264] ---[ end trace a84c8a326c0c5a63 ]--- [ 16.410896] ------------[ cut here ]------------ [ 16.415525] WARNING: CPU: 0 PID: 15 at /home/aaro/git/linux/lib/kobject.c:240 kobject_add_internal+0x2d4/0x328() [ 16.425722] kobject_add_internal failed for 8:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 16.437654] Modules linked in: [ 16.440732] CPU: 0 PID: 15 Comm: kworker/u4:1 Tainted: G W 4.4.0-rc1-octeon-los_73f9f-00002-gd81c963 #1 [ 16.451281] Workqueue: events_unbound async_run_entry_fn [ 16.456607] Stack : 0000000000000000 0000000000000004 ffffffff81760000 0000000000000000 0000000000000001 0000000000000000 0000000000000000 0000000000000000 ffffffff81f3abc8 ffffffff811893f8 0000000000000000 ffffffff81f3a758 0000000000000000 0000000000000002 0000000000000001 ffffffff81f40000 ffffffff816b78f8 80000000330e9000 00000000000000f0 0000000000000009 ffffffff8135944c 8000000032316c10 0000000000000000 800000003314bc28 800000003313a300 ffffffff811cea44 800000003314b978 800000003314bc28 800000003313a300 800000003314b880 800000003314b998 ffffffff8135331c 0000000000000369 ffffffff813c0900 000000000000006e 0000000000000000 735f756e626f756e ffffffff81124190 0000000000000000 0000000000000000 ... [ 16.522269] Call Trace: [ 16.524722] [<ffffffff81124190>] show_stack+0x88/0xa8 [ 16.529782] [<ffffffff8135331c>] dump_stack+0x6c/0x90 [ 16.534850] [<ffffffff81141cb4>] warn_slowpath_common+0x94/0xd8 [ 16.540789] [<ffffffff81141d30>] warn_slowpath_fmt+0x38/0x48 [ 16.546459] [<ffffffff8135944c>] kobject_add_internal+0x2d4/0x328 [ 16.552571] [<ffffffff81359504>] kobject_add+0x64/0xc0 [ 16.557718] [<ffffffff813cddd8>] device_add+0xe8/0x5d8 [ 16.562873] [<ffffffff813ce588>] device_create_groups_vargs+0x140/0x150 [ 16.569499] [<ffffffff811ee458>] bdi_register+0x70/0x128 [ 16.574828] [<ffffffff81346ee8>] add_disk+0x138/0x478 [ 16.579889] [<ffffffff81400794>] sd_probe_async+0xfc/0x218 [ 16.585391] [<ffffffff8116373c>] async_run_entry_fn+0x4c/0x120 [ 16.591244] [<ffffffff8115a83c>] process_one_work+0x17c/0x438 [ 16.596998] [<ffffffff8115ac60>] worker_thread+0x168/0x5e0 [ 16.602502] [<ffffffff81160dc4>] kthread+0xd4/0xf0 [ 16.607303] [<ffffffff8111e9d8>] ret_from_kernel_thread+0x14/0x1c [ 16.613412] [ 16.614904] ---[ end trace a84c8a326c0c5a64 ]--- [ 16.633023] sda: sda1 sda2 [ 16.636291] CPU 1 Unable to handle kernel paging request at virtual address 0000000000000040, epc == ffffffff8129b258, ra == ffffffff8129b258 [ 16.649023] Oops[#1]: [ 16.651304] CPU: 1 PID: 15 Comm: kworker/u4:1 Tainted: G W 4.4.0-rc1-octeon-los_73f9f-00002-gd81c963 #1 [ 16.661845] Workqueue: events_unbound async_run_entry_fn [ 16.667174] task: 8000000033140000 ti: 8000000033148000 task.ti: 8000000033148000 [ 16.674664] $ 0 : 0000000000000000 0000000010009ce1 0000000000010000 0000000000000000 [ 16.682729] $ 4 : ffffffff82f462d0 000000000000022a ffffffff816c0a88 0000000000000001 [ 16.690793] $ 8 : 80000000329dc2c0 800000003310da10 fffffffffffffffc 0000000000000000 [ 16.698859] $12 : 800000000307c068 0000000000000897 0000000000000001 800000003310da10 [ 16.706924] $16 : ffffffff82f40000 0000000000000040 0000000000000001 800000003331a0f0 [ 16.714990] $20 : ffffffff816c0a88 0000000000000000 80000000330086a0 8000000033008400 [ 16.723055] $24 : 80000000332b11f0 0000000000000000 [ 16.731119] $28 : 8000000033148000 800000003314bc20 80000000330e9000 ffffffff8129b258 [ 16.739184] Hi : 0000000000000000 [ 16.742762] Lo : 8888888888888889 [ 16.746347] epc : ffffffff8129b258 sysfs_do_create_link_sd.isra.0+0x48/0x100 [ 16.753581] ra : ffffffff8129b258 sysfs_do_create_link_sd.isra.0+0x48/0x100 [ 16.760810] Status: 10009ce3 KX SX UX KERNEL EXL IE [ 16.765854] Cause : 00800008 (ExcCode 02) [ 16.769867] BadVA : 0000000000000040 [ 16.773445] PrId : 000d9301 (Cavium Octeon II) [ 16.777979] Modules linked in: [ 16.781048] Process kworker/u4:1 (pid: 15, threadinfo=8000000033148000, task=8000000033140000, tls=0000000000000000) [ 16.791582] Stack : 8000000032316800 8000000032316880 800000003231680c 8000000032c3c300 80000000329dbe70 ffffffff81346f80 8000000032316800 0000000000000000 0000000300000000 0080000033008400 8000000032316400 8000000032316800 8000000032381800 8000000032381968 8000000033008400 ffffffff81400794 80000000330e9000 8000000032308c80 8000000032308c60 ffffffff81f30000 800000003302a900 ffffffff8116373c 8000000033008400 8000000032308c80 80000000330e9000 0000000000000000 800000003302a900 ffffffff8115a83c 8000000033008418 8000000033008400 80000000330e9030 8000000033008418 0000000000000088 8000000033008400 ffffffff81790000 80000000330086a0 8000000033008400 ffffffff8115ac60 ffffffff81790000 ffffffff81790000 ... [ 16.857191] Call Trace: [ 16.859642] [<ffffffff8129b258>] sysfs_do_create_link_sd.isra.0+0x48/0x100 [ 16.866531] [<ffffffff81346f80>] add_disk+0x1d0/0x478 [ 16.871592] [<ffffffff81400794>] sd_probe_async+0xfc/0x218 [ 16.877086] [<ffffffff8116373c>] async_run_entry_fn+0x4c/0x120 [ 16.882928] [<ffffffff8115a83c>] process_one_work+0x17c/0x438 [ 16.888683] [<ffffffff8115ac60>] worker_thread+0x168/0x5e0 [ 16.894178] [<ffffffff81160dc4>] kthread+0xd4/0xf0 [ 16.898978] [<ffffffff8111e9d8>] ret_from_kernel_thread+0x14/0x1c [ 16.905079] [ 16.906570] Code: ffbf0028 0c5777b4 00e0902d <de310000> 12200003 00000000 0c4a5ad8 0220202d 661062d0 [ 16.916655] ---[ end trace a84c8a326c0c5a65 ]--- [ 16.921305] Fatal exception: panic in 5 secondsFound rootfs /dev/sda2. Press ENTER to interrupt. rootfs: recovering journal [ 19.162984] ------------[ cut here ]------------ [ 19.167838] WARNING: CPU: 0 PID: 577 at /home/aaro/git/linux/fs/fs-writeback.c:2065 __mark_inode_dirty+0x204/0x2b8() [ 19.178400] bdi-block not registered [ 19.181996] Modules linked in: [ 19.185098] CPU: 0 PID: 577 Comm: fsck.ext4 Tainted: G D W 4.4.0-rc1-octeon-los_73f9f-00002-gd81c963 #1 [ 19.195472] Stack : ffffffff81f38340 0000000000000000 ffffffff81f3d648 ffffffffffffffff 0000000000000000 0000000000000004 ffffffff81760000 0000000000000000 0000000000000001 0000000000000000 0000000000000066 0000000000000066 ffffffff81f3abc8 ffffffff811893f8 0000000000000000 ffffffff81f40000 0000000000000000 ffffffff81609e08 ffffffff81f30000 ffffffff81f36878 ffffffff8175e287 ffffffff816b78f8 8000000032970c00 0000000000000000 0000000000000241 ffffffff81f36878 0000000000000200 0000000000000000 0000000000000001 80000000323ff930 80000000323ffa48 ffffffff8135331c 000000000000052f ffffffff8118a4c8 000000000000001c ffffffff816b78f8 0000000000000000 ffffffff81124190 0000000000000000 0000000000000000 ... [ 19.261131] Call Trace: [ 19.263588] [<ffffffff81124190>] show_stack+0x88/0xa8 [ 19.268649] [<ffffffff8135331c>] dump_stack+0x6c/0x90 [ 19.273717] [<ffffffff81141cb4>] warn_slowpath_common+0x94/0xd8 [ 19.279646] [<ffffffff81141d30>] warn_slowpath_fmt+0x38/0x48 [ 19.285326] [<ffffffff81255cec>] __mark_inode_dirty+0x204/0x2b8 [ 19.291270] [<ffffffff8125fec4>] __block_commit_write.isra.7+0x8c/0x128 [ 19.297896] [<ffffffff8125ffb0>] block_write_end+0x50/0xb0 [ 19.303398] [<ffffffff812641c4>] blkdev_write_end+0x14/0x40 [ 19.308984] [<ffffffff811d01dc>] generic_perform_write+0x144/0x230 [ 19.315182] [<ffffffff811d1db8>] __generic_file_write_iter+0x190/0x1f0 [ 19.321728] [<ffffffff81264dc8>] blkdev_write_iter+0x80/0x138 [ 19.327483] [<ffffffff81227fb8>] __vfs_write+0xb8/0x110 [ 19.332722] [<ffffffff812288f0>] vfs_write+0xa0/0x1c0 [ 19.337782] [<ffffffff812295b0>] SyS_pwrite64+0xb0/0xc8 [ 19.343025] [<ffffffff811324a0>] syscall_common+0x8/0x2c [ 19.348342] [ 19.349834] ---[ end trace a84c8a326c0c5a66 ]--- [ 19.669411] ------------[ cut here ]------------ [ 19.674089] WARNING: CPU: 1 PID: 577 at /home/aaro/git/linux/fs/fs-writeback.c:2065 __mark_inode_dirty+0x204/0x2b8() [ 19.684640] bdi-block not registered [ 19.688219] Modules linked in: [ 19.691307] CPU: 1 PID: 577 Comm: fsck.ext4 Tainted: G D W 4.4.0-rc1-octeon-los_73f9f-00002-gd81c963 #1 [ 19.701683] Stack : ffffffff81f38340 0000000000000000 ffffffff81f3df10 ffffffffffffffff 0000000000000001 0000000000000004 ffffffff81760000 0000000000000000 0000000000000001 0000000000000000 0000000000000066 0000000000000066 ffffffff81f3abc8 ffffffff811893f8 0000000000000000 ffffffff81f40000 0000000000000000 ffffffff81609e08 ffffffff81f30000 ffffffff81f36878 ffffffff8175e287 ffffffff816b78f8 8000000032970c00 0000000000000001 0000000000000241 ffffffff81f36878 0000000000000200 0000000000000000 0000000000000001 80000000323ff930 80000000323ffa48 ffffffff8135331c 00000000000005c9 ffffffff8118a4c8 000000000000001c ffffffff816b78f8 0000000000000001 ffffffff81124190 0000000000000000 0000000000000000 ... [ 19.767344] Call Trace: [ 19.769801] [<ffffffff81124190>] show_stack+0x88/0xa8 [ 19.774884] [<ffffffff8135331c>] dump_stack+0x6c/0x90 [ 19.779947] [<ffffffff81141cb4>] warn_slowpath_common+0x94/0xd8 [ 19.785889] [<ffffffff81141d30>] warn_slowpath_fmt+0x38/0x48 [ 19.791577] [<ffffffff81255cec>] __mark_inode_dirty+0x204/0x2b8 [ 19.797512] [<ffffffff8125fec4>] __block_commit_write.isra.7+0x8c/0x128 [ 19.804148] [<ffffffff8125ffb0>] block_write_end+0x50/0xb0 [ 19.809644] [<ffffffff812641c4>] blkdev_write_end+0x14/0x40 [ 19.815238] [<ffffffff811d01dc>] generic_perform_write+0x144/0x230 [ 19.821442] [<ffffffff811d1db8>] __generic_file_write_iter+0x190/0x1f0 [ 19.827981] [<ffffffff81264dc8>] blkdev_write_iter+0x80/0x138 [ 19.833748] [<ffffffff81227fb8>] __vfs_write+0xb8/0x110 [ 19.838982] [<ffffffff812288f0>] vfs_write+0xa0/0x1c0 [ 19.844052] [<ffffffff812295b0>] SyS_pwrite64+0xb0/0xc8 [ 19.849290] [<ffffffff811324a0>] syscall_common+0x8/0x2c [ 19.854617] [ 19.856111] ---[ end trace a84c8a326c0c5a67 ]--- [ 19.973436] ------------[ cut here ]------------ [ 19.978086] WARNING: CPU: 0 PID: 577 at /home/aaro/git/linux/fs/fs-writeback.c:2065 __mark_inode_dirty+0x204/0x2b8() [ 19.988646] bdi-block not registered [ 19.992241] Modules linked in: [ 19.995314] CPU: 0 PID: 577 Comm: fsck.ext4 Tainted: G D W 4.4.0-rc1-octeon-los_73f9f-00002-gd81c963 #1 [ 20.005686] Stack : ffffffff81f38340 0000000000000000 ffffffff81f3e7d8 ffffffffffffffff 0000000000000000 0000000000000004 ffffffff81760000 0000000000000000 0000000000000001 0000000000000000 0000000000000066 0000000000000066 ffffffff81f3abc8 ffffffff811893f8 0000000000000000 ffffffff81f40000 0000000000000000 ffffffff81609e08 ffffffff81f30000 ffffffff81f36878 ffffffff8175e287 ffffffff816b78f8 8000000032970c00 0000000000000000 0000000000000241 ffffffff81f36878 0000000000000200 0000000000000000 0000000000000001 80000000323ff930 80000000323ffa48 ffffffff8135331c 0000000000000663 ffffffff8118a4c8 000000000000001c ffffffff816b78f8 0000000000000000 ffffffff81124190 0000000000000000 0000000000000000 ... [ 20.071375] Call Trace: [ 20.073832] [<ffffffff81124190>] show_stack+0x88/0xa8 [ 20.078893] [<ffffffff8135331c>] dump_stack+0x6c/0x90 [ 20.083963] [<ffffffff81141cb4>] warn_slowpath_common+0x94/0xd8 [ 20.089892] [<ffffffff81141d30>] warn_slowpath_fmt+0x38/0x48 [ 20.095570] [<ffffffff81255cec>] __mark_inode_dirty+0x204/0x2b8 [ 20.101513] [<ffffffff8125fec4>] __block_commit_write.isra.7+0x8c/0x128 [ 20.108138] [<ffffffff8125ffb0>] block_write_end+0x50/0xb0 [ 20.113642] [<ffffffff812641c4>] blkdev_write_end+0x14/0x40 [ 20.119228] [<ffffffff811d01dc>] generic_perform_write+0x144/0x230 [ 20.125428] [<ffffffff811d1db8>] __generic_file_write_iter+0x190/0x1f0 [ 20.131975] [<ffffffff81264dc8>] blkdev_write_iter+0x80/0x138 [ 20.137731] [<ffffffff81227fb8>] __vfs_write+0xb8/0x110 [ 20.142973] [<ffffffff812288f0>] vfs_write+0xa0/0x1c0 [ 20.148034] [<ffffffff812295b0>] SyS_pwrite64+0xb0/0xc8 [ 20.153280] [<ffffffff811324a0>] syscall_common+0x8/0x2c [ 20.158598] [ 20.160090] ---[ end trace a84c8a326c0c5a68 ]--- rootfs: clean, 388512/30269440 files, 5188197/121048062 blocks [ 20.273335] EXT4-fs (sda2): couldn't mount as ext3 due to feature incompatibilities [ 20.281558] EXT4-fs (sda2): couldn't mount as ext2 due to feature incompatibilities [ 21.930502] Kernel panic - not syncing: Fatal exception [ 21.935740] ---[ end Kernel panic - not syncing: Fatal exception *** NMI Watchdog interrupt on Core 0x1 *** $0 0x0000000000000000 at 0x0000000010009ce0 v0 0x8000000003075f39 v1 0x0000000000000001 a0 0xffffffff81758d48 a1 0x0000000000000002 a2 0x0000000000000040 a3 0x0000000000000000 a4 0x0000000000000000 a5 0xfffffffffffffffe a6 0x0000000000000001 a7 0x8000000032804000 t0 0x0000000010009ce0 t1 0x000000001000001f t2 0x800000003326dd80 t3 0x0000000000000000 s0 0xffffffff81758b00 s1 0x0000000000000002 s2 0x0000000000000002 s3 0xffffffff81758d48 s4 0x0000000000000000 s5 0x0000000000000001 s6 0xffffffff81760000 s7 0xffffffff81760000 t8 0x0000000000000000 t9 0xffffffff81120800 k0 0x0000000000000000 k1 0x0000000000000000 gp 0x80000000323d4000 sp 0x80000000323d77a0 s8 0xffffffff81758b00 ra 0xffffffff81128ec8 err_epc 0xffffffff81128eec epc 0xffffffff815de370 status 0x0000000010489ce4 cause 0x0000000040808800 sum0 0x0000000000000000 en0 0x0000000000000000 *** Chip soft reset soon *** -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
