zram-related errors ("Buffer I/O error", "scheduling while atomic") and complete lockup..

Bug #1223273 reported by Steve Dodd
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linux (Ubuntu)
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Bug Description

I'm seeing errors such as these:

Sep 9 08:41:26 xubuntu kernel: [ 20.641594] Buffer I/O error on device zram0, logical block 256349
Sep 9 08:41:26 xubuntu kernel: [ 20.641599] Buffer I/O error on device zram0, logical block 256349
Sep 9 08:41:26 xubuntu kernel: [ 20.642234] Buffer I/O error on device zram0, logical block 256349
Sep 9 08:41:26 xubuntu kernel: [ 20.642241] Buffer I/O error on device zram0, logical block 256349
Sep 9 08:41:26 xubuntu kernel: [ 20.642245] Buffer I/O error on device zram0, logical block 256349

and these in my syslog:

Sep 9 15:47:29 xubuntu kernel: [25592.050279] BUG: scheduling while atomic: colord/1741/0x00000001
Sep 9 15:47:29 xubuntu kernel: [25592.050283] Modules linked in: arc4 rt2800usb rt2800lib rt2x00usb rt2x00lib mac80211 cfg80211 usblp ppp_deflate zlib_deflate bsd_comp ppp_async crc_ccitt option usb_wwan usbserial pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) dm_crypt mceusb clip atm rfcomm parport_pc bnep ppdev bluetooth binfmt_misc nls_utf8 isofs tda1004x saa7134_dvb videobuf_dvb dvb_core saa7134_alsa rc_hauppauge ir_kbd_i2c tda827x snd_usb_audio uvcvideo snd_usbmidi_lib snd_hda_codec_realtek joydev tda8290 snd_hda_intel snd_hda_codec snd_hwdep tuner snd_pcm dcdbas snd_seq_midi snd_rawmidi snd_seq_midi_event ir_lirc_codec lirc_dev snd_seq ir_mce_kbd_decoder ir_sony_decoder ir_jvc_decoder saa7134 ir_rc6_decoder ir_rc5_decoder snd_timer snd_seq_device ir_nec_decoder psmouse rc_core videobuf_dma_sg videobuf_core v4l2_common serio_raw videodev tveeprom snd soundcore snd_page_alloc mac_hid nvram lp parport hid_microsoft hid_logitech_dj usbhid hid floppy i915 drm_kms_helper drm usb_storage e1000e i2c_al
Sep 9 15:47:29 xubuntu kernel: go_bit video zram(C)

The machine also periodically freezes, not responding to mouse or keyboard or remote ssh (but it does to ping.)

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-53-generic-pae 3.2.0-53.81
ProcVersionSignature: Ubuntu 3.2.0-52.78-generic-pae 3.2.48
Uname: Linux 3.2.0-52-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu17.4
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: steved 3250 F.... pulseaudio
 /dev/snd/controlC1: steved 3250 F.... pulseaudio
 /dev/snd/controlC0: steved 3250 F.... pulseaudio
 /dev/snd/pcmC0D0p: steved 3250 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfdff4000 irq 43'
   Mixer name : 'Realtek ALC888'
   Components : 'HDA:10ec0888,1028020d,00100001'
   Controls : 41
   Simple ctrls : 23
Card1.Amixer.info:
 Card hw:1 'U0x46d0x825'/'USB Device 0x46d:0x825 at usb-0000:00:1a.7-6.2, high speed'
   Mixer name : 'USB Mixer'
   Components : 'USB046d:0825'
   Controls : 2
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
   Capture channels: Mono
   Limits: Capture 0 - 6144
   Mono: Capture 6144 [100%] [30.00dB] [on]
Card2.Amixer.info:
 Card hw:2 'SAA7134'/'saa7133[0] at 0xfddff000 irq 21'
   Mixer name : 'SAA7134 Mixer'
   Components : ''
   Controls : 6
   Simple ctrls : 3
Date: Tue Sep 10 11:03:12 2013
HibernationDevice: RESUME=UUID=89d4ff92-8b3f-4425-840e-1393d3e4b7c1
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 (20120822.4)
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
MachineType: Dell Inc. Inspiron 530
MarkForUpload: True
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-52-generic-pae root=/dev/mapper/lvg2-precise ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-52-generic-pae N/A
 linux-backports-modules-3.2.0-52-generic-pae N/A
 linux-firmware 1.79.6
RfKill:

SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/20/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.0.15
dmi.board.name: 0K216C
dmi.board.vendor: Dell Inc.
dmi.board.version: ���
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: OEM
dmi.modalias: dmi:bvnDellInc.:bvr1.0.15:bd06/20/2008:svnDellInc.:pnInspiron530:pvr:rvnDellInc.:rn0K216C:rvr:cvnDellInc.:ct3:cvrOEM:
dmi.product.name: Inspiron 530
dmi.sys.vendor: Dell Inc.

Revision history for this message
Steve Dodd (anarchetic) wrote :
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