https://bugzilla.kernel.org/show_bug.cgi?id=101011 Bug ID: 101011 Summary: Kernel Oops when disconnecting a mounted ext4 usb stick Product: IO/Storage Version: 2.5 Kernel Version: 4.1.1-040101-generic Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: SCSI Assignee: linux-scsi@xxxxxxxxxxxxxxx Reporter: konradsa@xxxxxxxxx Regression: No I am running Linux Mint Mate 17.2 with an update Ubuntu mainline kernel downloaded from here: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1.1-unstable/ When I disconnect a mounted ext4 USB stick without properly unmounting it first, the kernel crashes and I need to reboot. Here the relevant logs, I can reproduce this every time I try: Jul 4 22:26:52 Lenny kernel: [ 807.592356] sdb: sdb1 Jul 4 22:26:52 Lenny kernel: [ 807.595350] sd 3:0:0:0: [sdb] Attached SCSI removable disk Jul 4 22:26:53 Lenny kernel: [ 807.826241] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null) Jul 4 22:27:02 Lenny kernel: [ 817.461405] usb 2-2: USB disconnect, device number 2 Jul 4 22:27:02 Lenny kernel: [ 817.490648] Buffer I/O error on dev sdb1, logical block 15237120, lost sync page write Jul 4 22:27:02 Lenny kernel: [ 817.490655] JBD2: Error -5 detected when updating journal superblock for sdb1-8. Jul 4 22:27:02 Lenny kernel: [ 817.490873] BUG: unable to handle kernel paging request at 34beb000 Jul 4 22:27:02 Lenny kernel: [ 817.490929] IP: [<c136ce88>] __percpu_counter_add+0x18/0xc0 Jul 4 22:27:02 Lenny kernel: [ 817.490977] *pdpt = 0000000023db9001 *pde = 0000000000000000 Jul 4 22:27:02 Lenny kernel: [ 817.491024] Oops: 0000 [#1] SMP Jul 4 22:27:02 Lenny kernel: [ 817.491056] Modules linked in: uas usb_storage ctr ccm msr snd_hda_codec_analog snd_hda_codec_generic dm_multipath scsi_dh pcmcia coretemp kvm_intel kvm snd_seq_midi snd_seq_midi_event snd_rawmidi arc4 snd_seq yenta_socket iwl3945 serio_raw thinkpad_acpi iwlegacy mac80211 snd_hda_intel nvram snd_hda_controller snd_seq_device snd_hda_codec snd_hda_core snd_hwdep pcmcia_rsrc lpc_ich btusb pcmcia_core cfg80211 snd_pcm btbcm btintel rfcomm snd_timer shpchp bnep bluetooth snd soundcore 8250_fintek parport_pc ppdev tp_smapi(OE) thinkpad_ec(OE) mac_hid lp parport dm_mirror dm_region_hash dm_log i915 e1000e i2c_algo_bit sdhci_pci psmouse drm_kms_helper ahci ptp libahci sdhci drm pps_core video Jul 4 22:27:02 Lenny kernel: [ 817.491694] CPU: 0 PID: 4083 Comm: umount Tainted: G U OE 4.1.1-040101-generic #201507011435 Jul 4 22:27:02 Lenny kernel: [ 817.491761] Hardware name: LENOVO 7675CTO/7675CTO, BIOS 7NETC2WW (2.22 ) 03/22/2011 Jul 4 22:27:02 Lenny kernel: [ 817.491814] task: ebf06b50 ti: ebebc000 task.ti: ebebc000 Jul 4 22:27:02 Lenny kernel: [ 817.491853] EIP: 0060:[<c136ce88>] EFLAGS: 00010082 CPU: 0 Jul 4 22:27:02 Lenny kernel: [ 817.491894] EIP is at __percpu_counter_add+0x18/0xc0 Jul 4 22:27:02 Lenny kernel: [ 817.491931] EAX: f21c8e88 EBX: f21c8e88 ECX: 00000000 EDX: 00000001 Jul 4 22:27:02 Lenny kernel: [ 817.491975] ESI: 00000001 EDI: 00000000 EBP: ebebde60 ESP: ebebde40 Jul 4 22:27:02 Lenny kernel: [ 817.492018] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Jul 4 22:27:02 Lenny kernel: [ 817.492057] CR0: 8005003b CR2: 34beb000 CR3: 33354200 CR4: 000007f0 Jul 4 22:27:02 Lenny kernel: [ 817.492100] Stack: Jul 4 22:27:02 Lenny kernel: [ 817.492117] c1abe100 edcb0098 edcb00ec ffffffff f21c8e68 ffffffff f21c8e68 f286d160 Jul 4 22:27:02 Lenny kernel: [ 817.492198] ebebde84 c1160454 00000010 00000282 f72a77f8 00000984 f72a77f8 f286d160 Jul 4 22:27:02 Lenny kernel: [ 817.492277] f286d170 ebebdea0 c11e613f 00000000 00000282 f72a77f8 edd7f4d0 00000000 Jul 4 22:27:02 Lenny kernel: [ 817.492355] Call Trace: Jul 4 22:27:02 Lenny kernel: [ 817.492379] [<c1160454>] account_page_dirtied+0x74/0x110 Jul 4 22:27:02 Lenny kernel: [ 817.492420] [<c11e613f>] __set_page_dirty+0x3f/0xb0 Jul 4 22:27:02 Lenny kernel: [ 817.492459] [<c11e6203>] mark_buffer_dirty+0x53/0xc0 Jul 4 22:27:02 Lenny kernel: [ 817.492497] [<c124a0cb>] ext4_commit_super+0x17b/0x250 Jul 4 22:27:02 Lenny kernel: [ 817.492535] [<c124ac71>] ext4_put_super+0xc1/0x320 Jul 4 22:27:02 Lenny kernel: [ 817.492572] [<c11f04ba>] ? fsnotify_unmount_inodes+0x1aa/0x1c0 Jul 4 22:27:02 Lenny kernel: [ 817.492615] [<c11cfeda>] ? evict_inodes+0xca/0xe0 Jul 4 22:27:02 Lenny kernel: [ 817.492653] [<c11b925a>] generic_shutdown_super+0x6a/0xe0 Jul 4 22:27:02 Lenny kernel: [ 817.492695] [<c10a1df0>] ? prepare_to_wait_event+0xd0/0xd0 Jul 4 22:27:02 Lenny kernel: [ 817.492736] [<c1165a50>] ? unregister_shrinker+0x40/0x50 Jul 4 22:27:02 Lenny kernel: [ 817.492775] [<c11b92f6>] kill_block_super+0x26/0x70 Jul 4 22:27:02 Lenny kernel: [ 817.492815] [<c11b94f5>] deactivate_locked_super+0x45/0x80 Jul 4 22:27:02 Lenny kernel: [ 817.492854] [<c11ba007>] deactivate_super+0x47/0x60 Jul 4 22:27:02 Lenny kernel: [ 817.492892] [<c11d2b39>] cleanup_mnt+0x39/0x80 Jul 4 22:27:02 Lenny kernel: [ 817.492925] [<c11d2bc0>] __cleanup_mnt+0x10/0x20 Jul 4 22:27:02 Lenny kernel: [ 817.492960] [<c1080b51>] task_work_run+0x91/0xd0 Jul 4 22:27:02 Lenny kernel: [ 817.492996] [<c1011e3c>] do_notify_resume+0x7c/0x90 Jul 4 22:27:02 Lenny kernel: [ 817.493035] [<c1720da5>] work_notify ul 4 22:27:02 Lenny kernel: [ 817.493071] Code: 8b 55 e8 e9 f4 fe ff ff 90 90 90 90 90 90 90 90 90 90 90 55 89 e5 83 ec 20 89 5d f4 89 c3 89 75 f8 89 d6 89 7d fc 89 cf 8b 48 14 <64> 8b 01 89 45 ec 89 c2 8b 45 08 c1 fa 1f 01 75 ec 89 55 f0 89 Jul 4 22:27:02 Lenny kernel: [ 817.493401] EIP: [<c136ce88>] __percpu_counter_add+0x18/0xc0 SS:ESP 0068:ebebde40 Jul 4 22:27:02 Lenny kernel: [ 817.493462] CR2: 0000000034beb000 Jul 4 22:27:02 Lenny kernel: [ 817.494516] ---[ end trace dd564a7bea834ecd ]--- -- You are receiving this mail because: You are the assignee for the bug. -- 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
