Public bug reported: hello -
we had a freshly installed 14.04.1 server run into disk access issues after swapping out a hard drive. on further investigation, whenever a drive is pulled (on both the mptsas and mpt2sas systems i can test) the included warning is logged. the message is reproducible simply by pulling a drive, but i have not seen a recurrence of the issue where other drives become unresponsive. the attached upstream patch ( https://git.kernel.org/cgit/linux/kernel/git/stable/linux- stable.git/commit/?id=6aa6caff30f5dcb9e55b03b9710c30b83750cae5 ) has been applied to both 3.12.23 and 3.14.7. when i applied it locally to the packaged linux-source the resulting kernel does not log these warnings. as it is a fairly trivial patch that has already been applied to other kernel versions upstream, i'm hopeful that it could be included as an SRU. thank you for your time and effort! andy kern :warn : [Thu Sep 11 14:50:08 2014] ------------[ cut here ]------------ kern :warn : [Thu Sep 11 14:50:08 2014] WARNING: CPU: 0 PID: 27756 at /build/buildd/linux-3.13.0/fs/sysfs/group.c:214 sysfs_remove_group+0xc6/0xd0() kern :warn : [Thu Sep 11 14:50:08 2014] sysfs group ffffffff81cabde0 not found for kobject 'end_device-6:1:23' kern :warn : [Thu Sep 11 14:50:08 2014] Modules linked in: drbd lru_cache libcrc32c 8021q garp mrp autofs4 ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi nfsv3 sch_sfq nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache bridge stp llc bonding gpio_ich joydev intel_powerclamp dm_multipath coretemp scsi_dh kvm_intel kvm i7core_edac lpc_ich vhost_net edac_core ioatdma serio_raw vhost macvtap macvlan mac_hid ipmi_si ipmi_devintf usbkbd ses enclosure raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic usbhid hid raid6_pq raid1 igb raid0 mptsas i2c_algo_bit mptscsih ahci multipath dca ptp mptbase libahci psmouse linear scsi_transport_sas pps_core kern :warn : [Thu Sep 11 14:50:08 2014] CPU: 0 PID: 27756 Comm: kworker/u49:6 Not tainted 3.13.0-35-generic #62-Ubuntu kern :warn : [Thu Sep 11 14:50:08 2014] Hardware name: Supermicro X8DT3/X8DT3, BIOS 2.0a 09/14/2010 kern :warn : [Thu Sep 11 14:50:08 2014] Workqueue: mpt/0 mptsas_firmware_event_work [mptsas] kern :warn : [Thu Sep 11 14:50:08 2014] 0000000000000009 ffff880126a01ac8 ffffffff8171e320 ffff880126a01b10 kern :warn : [Thu Sep 11 14:50:08 2014] ffff880126a01b00 ffffffff8106775d 0000000000000000 ffffffff81cabde0 kern :warn : [Thu Sep 11 14:50:08 2014] ffff880bf9410c10 ffff880bf986e400 5003048000d2e6da ffff880126a01b60 kern :warn : [Thu Sep 11 14:50:08 2014] Call Trace: kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8171e320>] dump_stack+0x45/0x56 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8106775d>] warn_slowpath_common+0x7d/0xa0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff810677cc>] warn_slowpath_fmt+0x4c/0x50 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81234b3e>] ? sysfs_get_dirent_ns+0x4e/0x70 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81235e26>] sysfs_remove_group+0xc6/0xd0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8149bb23>] dpm_sysfs_remove+0x43/0x50 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81491525>] device_del+0x45/0x1c0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff814916be>] device_unregister+0x1e/0x60 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff813507de>] bsg_unregister_queue+0x5e/0xa0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa001516c>] sas_rphy_free+0xac/0xe0 [scsi_transport_sas] kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa0017085>] sas_port_delete+0x35/0x170 [scsi_transport_sas] kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81235033>] ? sysfs_remove_link+0x23/0x30 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa009e745>] mptsas_del_end_device+0x185/0x270 [mptsas] kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa00a45d4>] mptsas_hotplug_work+0x1f4/0x9b0 [mptsas] kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa00a56c1>] mptsas_firmware_event_work+0x3e1/0xf4c [mptsas] kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8101b763>] ? native_sched_clock+0x13/0x80 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8101b7d9>] ? sched_clock+0x9/0x10 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8109d415>] ? sched_clock_cpu+0xb5/0x100 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff810125c6>] ? __switch_to+0x126/0x4c0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff810839d2>] process_one_work+0x182/0x450 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff810847c1>] worker_thread+0x121/0x410 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff810846a0>] ? rescuer_thread+0x430/0x430 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8108b4a2>] kthread+0xd2/0xf0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8108b3d0>] ? kthread_create_on_node+0x1c0/0x1c0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8172ecbc>] ret_from_fork+0x7c/0xb0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8108b3d0>] ? kthread_create_on_node+0x1c0/0x1c0 kern :warn : [Thu Sep 11 14:50:08 2014] ---[ end trace ad4ab1f037505d41 ]--- ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-35-generic 3.13.0-35.62 ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6 Uname: Linux 3.13.0-35-generic x86_64 AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Sep 10 10:02 seq crw-rw---- 1 root audio 116, 33 Sep 10 10:02 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.14.1-0ubuntu3.3 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory: 'iw' Date: Fri Sep 12 15:35:25 2014 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: Supermicro X8DT6 PciMultimedia: ProcEnviron: TERM=rxvt-unicode-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/usr/bin/zsh ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-35-generic root=/dev/md0 ro consoleblank=0 console=tty0 console=ttyS2,115200n8 nomdmonddf nomdmonisw bootdegraded=true RelatedPackageVersions: linux-restricted-modules-3.13.0-35-generic N/A linux-backports-modules-3.13.0-35-generic N/A linux-firmware 1.127.5 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/15/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2.0c dmi.board.asset.tag: 1234567890 dmi.board.name: X8DT6 dmi.board.vendor: Supermicro dmi.board.version: 1234567890 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 17 dmi.chassis.vendor: Supermicro dmi.chassis.version: 1234567890 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2.0c:bd05/15/2012:svnSupermicro:pnX8DT6:pvr1234567890:rvnSupermicro:rnX8DT6:rvr1234567890:cvnSupermicro:ct17:cvr1234567890: dmi.product.name: X8DT6 dmi.product.version: 1234567890 dmi.sys.vendor: Supermicro ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug trusty ** Patch added: "commit 6aa6caff30f5dcb9e55b03b9710c30b83750cae5 upstream." https://bugs.launchpad.net/bugs/1368991/+attachment/4202729/+files/6aa6caff30f5dcb9e55b03b9710c30b83750cae5.patch ** Description changed: hello - we had a freshly installed 14.04.1 server run into disk access issues after swapping out a hard drive. on further investigation, whenever a drive is pulled (on both the mptsas and mpt2sas systems i can test) the included warning is logged. the message is reproducible simply by pulling a drive, but i have not seen a recurrence of the issue where other drives become unresponsive. the attached upstream patch ( https://git.kernel.org/cgit/linux/kernel/git/stable/linux- stable.git/commit/?id=6aa6caff30f5dcb9e55b03b9710c30b83750cae5 ) has been applied to both 3.12.23 and 3.14.7. when i applied it locally to the packaged linux-source the resulting kernel does not log these warnings. - as it it a fairly trivial patch, i'm hopeful that it could be included - as an SRU. + as it is a fairly trivial patch that has already been applied to other + kernel versions upstream, i'm hopeful that it could be included as an + SRU. thank you for your time and effort! andy kern :warn : [Thu Sep 11 14:50:08 2014] ------------[ cut here ]------------ kern :warn : [Thu Sep 11 14:50:08 2014] WARNING: CPU: 0 PID: 27756 at /build/buildd/linux-3.13.0/fs/sysfs/group.c:214 sysfs_remove_group+0xc6/0xd0() kern :warn : [Thu Sep 11 14:50:08 2014] sysfs group ffffffff81cabde0 not found for kobject 'end_device-6:1:23' kern :warn : [Thu Sep 11 14:50:08 2014] Modules linked in: drbd lru_cache libcrc32c 8021q garp mrp autofs4 ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi nfsv3 sch_sfq nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache bridge stp llc bonding gpio_ich joydev intel_powerclamp dm_multipath coretemp scsi_dh kvm_intel kvm i7core_edac lpc_ich vhost_net edac_core ioatdma serio_raw vhost macvtap macvlan mac_hid ipmi_si ipmi_devintf usbkbd ses enclosure raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic usbhid hid raid6_pq raid1 igb raid0 mptsas i2c_algo_bit mptscsih ahci multipath dca ptp mptbase libahci psmouse linear scsi_transport_sas pps_core kern :warn : [Thu Sep 11 14:50:08 2014] CPU: 0 PID: 27756 Comm: kworker/u49:6 Not tainted 3.13.0-35-generic #62-Ubuntu kern :warn : [Thu Sep 11 14:50:08 2014] Hardware name: Supermicro X8DT3/X8DT3, BIOS 2.0a 09/14/2010 kern :warn : [Thu Sep 11 14:50:08 2014] Workqueue: mpt/0 mptsas_firmware_event_work [mptsas] kern :warn : [Thu Sep 11 14:50:08 2014] 0000000000000009 ffff880126a01ac8 ffffffff8171e320 ffff880126a01b10 kern :warn : [Thu Sep 11 14:50:08 2014] ffff880126a01b00 ffffffff8106775d 0000000000000000 ffffffff81cabde0 kern :warn : [Thu Sep 11 14:50:08 2014] ffff880bf9410c10 ffff880bf986e400 5003048000d2e6da ffff880126a01b60 kern :warn : [Thu Sep 11 14:50:08 2014] Call Trace: kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8171e320>] dump_stack+0x45/0x56 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8106775d>] warn_slowpath_common+0x7d/0xa0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff810677cc>] warn_slowpath_fmt+0x4c/0x50 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81234b3e>] ? sysfs_get_dirent_ns+0x4e/0x70 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81235e26>] sysfs_remove_group+0xc6/0xd0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8149bb23>] dpm_sysfs_remove+0x43/0x50 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81491525>] device_del+0x45/0x1c0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff814916be>] device_unregister+0x1e/0x60 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff813507de>] bsg_unregister_queue+0x5e/0xa0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa001516c>] sas_rphy_free+0xac/0xe0 [scsi_transport_sas] kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa0017085>] sas_port_delete+0x35/0x170 [scsi_transport_sas] kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81235033>] ? sysfs_remove_link+0x23/0x30 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa009e745>] mptsas_del_end_device+0x185/0x270 [mptsas] kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa00a45d4>] mptsas_hotplug_work+0x1f4/0x9b0 [mptsas] kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa00a56c1>] mptsas_firmware_event_work+0x3e1/0xf4c [mptsas] kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8101b763>] ? native_sched_clock+0x13/0x80 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8101b7d9>] ? sched_clock+0x9/0x10 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8109d415>] ? sched_clock_cpu+0xb5/0x100 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff810125c6>] ? __switch_to+0x126/0x4c0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff810839d2>] process_one_work+0x182/0x450 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff810847c1>] worker_thread+0x121/0x410 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff810846a0>] ? rescuer_thread+0x430/0x430 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8108b4a2>] kthread+0xd2/0xf0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8108b3d0>] ? kthread_create_on_node+0x1c0/0x1c0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8172ecbc>] ret_from_fork+0x7c/0xb0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8108b3d0>] ? kthread_create_on_node+0x1c0/0x1c0 kern :warn : [Thu Sep 11 14:50:08 2014] ---[ end trace ad4ab1f037505d41 ]--- ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-35-generic 3.13.0-35.62 ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6 Uname: Linux 3.13.0-35-generic x86_64 AlsaDevices: - total 0 - crw-rw---- 1 root audio 116, 1 Sep 10 10:02 seq - crw-rw---- 1 root audio 116, 33 Sep 10 10:02 timer + total 0 + crw-rw---- 1 root audio 116, 1 Sep 10 10:02 seq + crw-rw---- 1 root audio 116, 33 Sep 10 10:02 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.14.1-0ubuntu3.3 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory: 'iw' Date: Fri Sep 12 15:35:25 2014 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: Supermicro X8DT6 PciMultimedia: - + ProcEnviron: - TERM=rxvt-unicode-256color - PATH=(custom, no user) - LANG=en_US.UTF-8 - SHELL=/usr/bin/zsh + TERM=rxvt-unicode-256color + PATH=(custom, no user) + LANG=en_US.UTF-8 + SHELL=/usr/bin/zsh ProcFB: - + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-35-generic root=/dev/md0 ro consoleblank=0 console=tty0 console=ttyS2,115200n8 nomdmonddf nomdmonisw bootdegraded=true RelatedPackageVersions: - linux-restricted-modules-3.13.0-35-generic N/A - linux-backports-modules-3.13.0-35-generic N/A - linux-firmware 1.127.5 + linux-restricted-modules-3.13.0-35-generic N/A + linux-backports-modules-3.13.0-35-generic N/A + linux-firmware 1.127.5 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/15/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2.0c dmi.board.asset.tag: 1234567890 dmi.board.name: X8DT6 dmi.board.vendor: Supermicro dmi.board.version: 1234567890 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 17 dmi.chassis.vendor: Supermicro dmi.chassis.version: 1234567890 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2.0c:bd05/15/2012:svnSupermicro:pnX8DT6:pvr1234567890:rvnSupermicro:rnX8DT6:rvr1234567890:cvnSupermicro:ct17:cvr1234567890: dmi.product.name: X8DT6 dmi.product.version: 1234567890 dmi.sys.vendor: Supermicro -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1368991 Title: scsi_transport_sas: move bsg destructor into sas_rphy_remove Status in “linux” package in Ubuntu: New Bug description: hello - we had a freshly installed 14.04.1 server run into disk access issues after swapping out a hard drive. on further investigation, whenever a drive is pulled (on both the mptsas and mpt2sas systems i can test) the included warning is logged. the message is reproducible simply by pulling a drive, but i have not seen a recurrence of the issue where other drives become unresponsive. the attached upstream patch ( https://git.kernel.org/cgit/linux/kernel/git/stable/linux- stable.git/commit/?id=6aa6caff30f5dcb9e55b03b9710c30b83750cae5 ) has been applied to both 3.12.23 and 3.14.7. when i applied it locally to the packaged linux-source the resulting kernel does not log these warnings. as it is a fairly trivial patch that has already been applied to other kernel versions upstream, i'm hopeful that it could be included as an SRU. thank you for your time and effort! andy kern :warn : [Thu Sep 11 14:50:08 2014] ------------[ cut here ]------------ kern :warn : [Thu Sep 11 14:50:08 2014] WARNING: CPU: 0 PID: 27756 at /build/buildd/linux-3.13.0/fs/sysfs/group.c:214 sysfs_remove_group+0xc6/0xd0() kern :warn : [Thu Sep 11 14:50:08 2014] sysfs group ffffffff81cabde0 not found for kobject 'end_device-6:1:23' kern :warn : [Thu Sep 11 14:50:08 2014] Modules linked in: drbd lru_cache libcrc32c 8021q garp mrp autofs4 ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi nfsv3 sch_sfq nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache bridge stp llc bonding gpio_ich joydev intel_powerclamp dm_multipath coretemp scsi_dh kvm_intel kvm i7core_edac lpc_ich vhost_net edac_core ioatdma serio_raw vhost macvtap macvlan mac_hid ipmi_si ipmi_devintf usbkbd ses enclosure raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic usbhid hid raid6_pq raid1 igb raid0 mptsas i2c_algo_bit mptscsih ahci multipath dca ptp mptbase libahci psmouse linear scsi_transport_sas pps_core kern :warn : [Thu Sep 11 14:50:08 2014] CPU: 0 PID: 27756 Comm: kworker/u49:6 Not tainted 3.13.0-35-generic #62-Ubuntu kern :warn : [Thu Sep 11 14:50:08 2014] Hardware name: Supermicro X8DT3/X8DT3, BIOS 2.0a 09/14/2010 kern :warn : [Thu Sep 11 14:50:08 2014] Workqueue: mpt/0 mptsas_firmware_event_work [mptsas] kern :warn : [Thu Sep 11 14:50:08 2014] 0000000000000009 ffff880126a01ac8 ffffffff8171e320 ffff880126a01b10 kern :warn : [Thu Sep 11 14:50:08 2014] ffff880126a01b00 ffffffff8106775d 0000000000000000 ffffffff81cabde0 kern :warn : [Thu Sep 11 14:50:08 2014] ffff880bf9410c10 ffff880bf986e400 5003048000d2e6da ffff880126a01b60 kern :warn : [Thu Sep 11 14:50:08 2014] Call Trace: kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8171e320>] dump_stack+0x45/0x56 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8106775d>] warn_slowpath_common+0x7d/0xa0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff810677cc>] warn_slowpath_fmt+0x4c/0x50 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81234b3e>] ? sysfs_get_dirent_ns+0x4e/0x70 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81235e26>] sysfs_remove_group+0xc6/0xd0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8149bb23>] dpm_sysfs_remove+0x43/0x50 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81491525>] device_del+0x45/0x1c0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff814916be>] device_unregister+0x1e/0x60 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff813507de>] bsg_unregister_queue+0x5e/0xa0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa001516c>] sas_rphy_free+0xac/0xe0 [scsi_transport_sas] kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa0017085>] sas_port_delete+0x35/0x170 [scsi_transport_sas] kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81235033>] ? sysfs_remove_link+0x23/0x30 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa009e745>] mptsas_del_end_device+0x185/0x270 [mptsas] kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa00a45d4>] mptsas_hotplug_work+0x1f4/0x9b0 [mptsas] kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa00a56c1>] mptsas_firmware_event_work+0x3e1/0xf4c [mptsas] kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8101b763>] ? native_sched_clock+0x13/0x80 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8101b7d9>] ? sched_clock+0x9/0x10 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8109d415>] ? sched_clock_cpu+0xb5/0x100 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff810125c6>] ? __switch_to+0x126/0x4c0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff810839d2>] process_one_work+0x182/0x450 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff810847c1>] worker_thread+0x121/0x410 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff810846a0>] ? rescuer_thread+0x430/0x430 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8108b4a2>] kthread+0xd2/0xf0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8108b3d0>] ? kthread_create_on_node+0x1c0/0x1c0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8172ecbc>] ret_from_fork+0x7c/0xb0 kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8108b3d0>] ? kthread_create_on_node+0x1c0/0x1c0 kern :warn : [Thu Sep 11 14:50:08 2014] ---[ end trace ad4ab1f037505d41 ]--- ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-35-generic 3.13.0-35.62 ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6 Uname: Linux 3.13.0-35-generic x86_64 AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Sep 10 10:02 seq crw-rw---- 1 root audio 116, 33 Sep 10 10:02 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.14.1-0ubuntu3.3 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory: 'iw' Date: Fri Sep 12 15:35:25 2014 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: Supermicro X8DT6 PciMultimedia: ProcEnviron: TERM=rxvt-unicode-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/usr/bin/zsh ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-35-generic root=/dev/md0 ro consoleblank=0 console=tty0 console=ttyS2,115200n8 nomdmonddf nomdmonisw bootdegraded=true RelatedPackageVersions: linux-restricted-modules-3.13.0-35-generic N/A linux-backports-modules-3.13.0-35-generic N/A linux-firmware 1.127.5 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/15/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2.0c dmi.board.asset.tag: 1234567890 dmi.board.name: X8DT6 dmi.board.vendor: Supermicro dmi.board.version: 1234567890 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 17 dmi.chassis.vendor: Supermicro dmi.chassis.version: 1234567890 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2.0c:bd05/15/2012:svnSupermicro:pnX8DT6:pvr1234567890:rvnSupermicro:rnX8DT6:rvr1234567890:cvnSupermicro:ct17:cvr1234567890: dmi.product.name: X8DT6 dmi.product.version: 1234567890 dmi.sys.vendor: Supermicro To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1368991/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : 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