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.
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=6aa6caff30f 5dcb9e55b03b971 0c30b83750cae5 ) 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.
thank you for your time and effort!
andy
kern :warn : [Thu Sep 11 14:50:08 2014] ------------[ cut here ]------------ buildd/ linux-3. 13.0/fs/ sysfs/group. c:214 sysfs_remove_ group+0xc6/ 0xd0() 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 firmware_ event_work [mptsas] 320>] dump_stack+ 0x45/0x56 75d>] warn_slowpath_ common+ 0x7d/0xa0 7cc>] warn_slowpath_ fmt+0x4c/ 0x50 b3e>] ? sysfs_get_ dirent_ ns+0x4e/ 0x70 e26>] sysfs_remove_ group+0xc6/ 0xd0 b23>] dpm_sysfs_ remove+ 0x43/0x50 525>] device_ del+0x45/ 0x1c0 6be>] device_ unregister+ 0x1e/0x60 7de>] bsg_unregister_ queue+0x5e/ 0xa0 16c>] sas_rphy_ free+0xac/ 0xe0 [scsi_transport _sas] 085>] sas_port_ delete+ 0x35/0x170 [scsi_transport _sas] 033>] ? sysfs_remove_ link+0x23/ 0x30 745>] mptsas_ del_end_ device+ 0x185/0x270 [mptsas] 5d4>] mptsas_ hotplug_ work+0x1f4/ 0x9b0 [mptsas] 6c1>] mptsas_ firmware_ event_work+ 0x3e1/0xf4c [mptsas] 763>] ? native_ sched_clock+ 0x13/0x80 7d9>] ? sched_clock+ 0x9/0x10 415>] ? sched_clock_ cpu+0xb5/ 0x100 5c6>] ? __switch_ to+0x126/ 0x4c0 9d2>] process_ one_work+ 0x182/0x450 7c1>] worker_ thread+ 0x121/0x410 6a0>] ? rescuer_ thread+ 0x430/0x430 4a2>] kthread+0xd2/0xf0 3d0>] ? kthread_ create_ on_node+ 0x1c0/0x1c0 cbc>] ret_from_ fork+0x7c/ 0xb0 3d0>] ? kthread_ create_ on_node+ 0x1c0/0x1c0
kern :warn : [Thu Sep 11 14:50:08 2014] WARNING: CPU: 0 PID: 27756 at /build/
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_
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_
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] [<ffffffff8171e
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81067
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81067
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81234
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81235
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8149b
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81491
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81491
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81350
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa0015
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa0017
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81235
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa009e
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa00a4
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffffa00a5
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8101b
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8101b
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8109d
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81012
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81083
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81084
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff81084
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8108b
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8108b
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8172e
kern :warn : [Thu Sep 11 14:50:08 2014] [<ffffffff8108b
kern :warn : [Thu Sep 11 14:50:08 2014] ---[ end trace ad4ab1f037505d41 ]---
ProblemType: Bug 3.13.0- 35-generic 3.13.0-35.62 ature: Ubuntu 3.13.0- 35.62-generic 3.13.11.6
DistroRelease: Ubuntu 14.04
Package: linux-image-
ProcVersionSign
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: unicode- 256color
TERM=rxvt-
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 ersions: restricted- modules- 3.13.0- 35-generic N/A backports- modules- 3.13.0- 35-generic N/A asset.tag: 1234567890 asset.tag: To Be Filled By O.E.M. version: 1234567890 MegatrendsInc. :bvr2.0c: bd05/15/ 2012:svnSupermi cro:pnX8DT6: pvr1234567890: rvnSupermicro: rnX8DT6: rvr1234567890: cvnSupermicro: ct17:cvr1234567 890: version: 1234567890
RelatedPackageV
linux-
linux-
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.
dmi.board.name: X8DT6
dmi.board.vendor: Supermicro
dmi.board.version: 1234567890
dmi.chassis.
dmi.chassis.type: 17
dmi.chassis.vendor: Supermicro
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: X8DT6
dmi.product.
dmi.sys.vendor: Supermicro