Buffer I/O error on device zram0
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
linux-lts-raring (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
This is on linux-image-
I see this junk in my dmesg when creating / formatting a zram swap, and then periodically. Then at some point after heavy swapping incidents, the machine locks up. "Correlation does not imply causation, but it does waggle its eyebrows suggestively" and all that.
---
zram: module is from the staging directory, the quality is unknown, you have been warned.
zram: num_devices not specified. Using default: 1
zram: Creating 1 devices
Adding 1031648k swap on /dev/zram0. Priority:100 extents:1 across:1031648k SS
...
Buffer I/O error on device zram0, logical block 257912 [repeated 10 times]
...
BUG: scheduling while atomic: rsyslogd/
Pid: 1439, comm: rsyslogd Tainted: PF WC O 3.8.0-29-generic #42~precise1-Ubuntu
[20931.796635] Pid: 1439, comm: rsyslogd Tainted: PF WC O 3.8.0-29-generic #42~precise1-Ubuntu
[20931.796638] Call Trace:
[20931.796649] [<c1619449>] __schedule_
[20931.796653] [<c162c265>] __schedule+
[20931.796660] [<f8439e06>] ? zram_make_
[20931.796666] [<c111c38d>] ? release_
[20931.796669] [<c162c573>] schedule+0x23/0x60
[20931.796673] [<c162d0fd>] rwsem_down_
[20931.796677] [<c162d162>] rwsem_down_
[20931.796681] [<c12f809a>] call_rwsem_
[20931.796685] [<c162ba44>] ? down_write+
[20931.796689] [<f8439169>] zram_slot_
[20931.796693] [<f8439140>] ? zram_stat64_
[20931.796700] [<c11460bc>] swap_entry_
[20931.796703] [<c162d100>] ? rwsem_down_
[20931.796708] [<c1146458>] swap_free+0x28/0x40
[20931.796712] [<c1134ba0>] do_swap_
[20931.796717] [<c10180f8>] ? sched_clock+
[20931.796721] [<c11365aa>] handle_
[20931.796726] [<c10451e1>] ? kmap_atomic_
[20931.796730] [<c113746a>] handle_
[20931.796735] [<c1630ad0>] __do_page_
[20931.796740] [<c12f63bc>] ? sprintf+0x1c/0x20
[20931.796744] [<c104c132>] ? print_time.
[20931.796748] [<c1630e30>] ? __do_page_
[20931.796752] [<c1630e3d>] do_page_
[20931.796756] [<c162dc17>] error_code+
[20931.796759] [<c12f8716>] ? __copy_
[20931.796763] [<c12f8970>] copy_to_
[20931.796767] [<c104e218>] syslog_
[20931.796770] [<c104eae6>] do_syslog+
[20931.796775] [<c106d570>] ? add_wait_
[20931.796780] [<c11c3680>] ? kmsg_poll+0x50/0x50
[20931.796784] [<c11c36d0>] kmsg_read+0x50/0x60
[20931.796788] [<c11b6584>] proc_reg_
[20931.796793] [<c116469c>] vfs_read+0x8c/0x160
[20931.796797] [<c10a898d>] ? sys_futex+
[20931.796801] [<c11b6520>] ? proc_reg_
[20931.796805] [<c11647b7>] sys_read+0x47/0x80
...
[30855.181542] Write-error on swap-device (251:0:131064)
[43457.030155] Write-error on swap-device (251:0:131064)
[43705.090381] Buffer I/O error on device zram0, logical block 16383
Anyway, there's a couple of lkml messages related to this "Buffer I/O error on device zram0", please investigate
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-
ProcVersionSign
Uname: Linux 3.8.0-29-generic i686
NonfreeKernelMo
ApportVersion: 2.0.1-0ubuntu17.4
Architecture: i386
Date: Tue Aug 27 07:33:37 2013
EcryptfsInUse: Yes
MarkForUpload: True
ProcEnviron:
TERM=rxvt
LC_COLLATE=C
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: linux-lts-raring
UpgradeStatus: No upgrade log present (probably fresh install)
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.8.0-
ApportVersion: 2.0.1-0ubuntu17.4
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/pcmC0D0p: muresan 29305 F...m pulseaudio
/dev/snd/
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfebfc000 irq 44'
Mixer name : 'SigmaTel STAC9205'
Components : 'HDA:838476a0,
Controls : 26
Simple ctrls : 12
Card1.Amixer.info:
Card hw:1 'USB'/'E-MU Systems, Inc. E-MU 0202 | USB at usb-0000:00:1d.0-2, full speed'
Mixer name : 'USB Mixer'
Components : 'USB041e:3f02'
Controls : 4
Simple ctrls : 2
DistroRelease: Ubuntu 12.04
EcryptfsInUse: Yes
HibernationDevice: RESUME=
IwConfig:
lo no wireless extensions.
eth0 no wireless extensions.
MachineType: Dell Inc. Inspiron 1520
MarkForUpload: True
NonfreeKernelMo
Package: linux-lts-raring
ProcEnviron:
TERM=rxvt
LC_COLLATE=C
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
RelatedPackageV
linux-
linux-
linux-firmware 1.79.6
RfKill:
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
StagingDrivers: zram
Tags: precise staging
Uname: Linux 3.8.0-29-lowlatency i686
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin audio cdrom davfs2 dialout dip floppy fuse lpadmin netdev plugdev powerdev sambashare scanner video
dmi.bios.date: 02/03/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 0UW306
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.
dmi.product.name: Inspiron 1520
dmi.sys.vendor: Dell Inc.
summary: |
- Buffer I/O error on device zram0 (possibly causing complete machine - lockup) + Buffer I/O error on device zram0 |
Changed in linux-lts-raring (Ubuntu): | |
status: | Confirmed → Fix Released |
Changed in linux (Ubuntu): | |
status: | Confirmed → Fix Released |
Status changed to 'Confirmed' because the bug affects multiple users.