Public bug reported:

Binary package hint: firefox

Whole system hangs when starting firefox browser. Following messages are
written to system log.

[  863.252939] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  863.256882] ata2.00: BMDMA stat 0x25
[  863.261235] ata2.00: failed command: READ DMA
[  863.265700] ata2.00: cmd c8/00:20:ff:7f:46/00:00:00:00:00/e8 tag 0 dma 16384 
in
[  863.265702]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  863.285372] ata2.00: status: { DRDY ERR }
[  863.290898] ata2.00: error: { UNC }
[  863.412081] ata2.00: configured for UDMA/133
[  863.412096] ata2: EH complete
[  866.709720] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  866.710007] ata2.00: BMDMA stat 0x25
[  866.710201] ata2.00: failed command: READ DMA
[  866.710409] ata2.00: cmd c8/00:20:ff:7f:46/00:00:00:00:00/e8 tag 0 dma 16384 
in
[  866.710410]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  866.711036] ata2.00: status: { DRDY ERR }
[  866.711235] ata2.00: error: { UNC }
[  866.810563] ata2.00: configured for UDMA/133
[  866.810579] ata2: EH complete
[  870.133182] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  870.133187] ata2.00: BMDMA stat 0x25
[  870.133191] ata2.00: failed command: READ DMA
[  870.133198] ata2.00: cmd c8/00:20:ff:7f:46/00:00:00:00:00/e8 tag 0 dma 16384 
in
[  870.133199]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  870.133202] ata2.00: status: { DRDY ERR }
[  870.133204] ata2.00: error: { UNC }
[  870.267332] ata2.00: configured for UDMA/133
[  870.267350] ata2: EH complete
[  873.581589] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  873.581594] ata2.00: BMDMA stat 0x25
[  873.581599] ata2.00: failed command: READ DMA
[  873.581605] ata2.00: cmd c8/00:20:ff:7f:46/00:00:00:00:00/e8 tag 0 dma 16384 
in
[  873.581606]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  873.581609] ata2.00: status: { DRDY ERR }
[  873.581611] ata2.00: error: { UNC }
[  873.715778] ata2.00: configured for UDMA/133
[  873.715793] ata2: EH complete
[  877.055030] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  877.055034] ata2.00: BMDMA stat 0x25
[  877.055038] ata2.00: failed command: READ DMA
[  877.055045] ata2.00: cmd c8/00:20:ff:7f:46/00:00:00:00:00/e8 tag 0 dma 16384 
in
[  877.055046]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  877.055049] ata2.00: status: { DRDY ERR }
[  877.055051] ata2.00: error: { UNC }
[  877.164229] ata2.00: configured for UDMA/133
[  877.164246] ata2: EH complete
[  880.420180] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  880.420185] ata2.00: BMDMA stat 0x25
[  880.420189] ata2.00: failed command: READ DMA
[  880.420195] ata2.00: cmd c8/00:20:ff:7f:46/00:00:00:00:00/e8 tag 0 dma 16384 
in
[  880.420197]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  880.420199] ata2.00: status: { DRDY ERR }
[  880.420202] ata2.00: error: { UNC }
[  880.554365] ata2.00: configured for UDMA/133
[  880.554384] sd 1:0:0:0: [sdb] Unhandled sense code
[  880.554387] sd 1:0:0:0: [sdb] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[  880.554390] sd 1:0:0:0: [sdb] Sense Key : Medium Error [current] [descriptor]
[  880.554395] Descriptor sense data with sense descriptors (in hex):
[  880.554397]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
[  880.554405]         08 46 80 0b 
[  880.554409] sd 1:0:0:0: [sdb] Add. Sense: Unrecovered read error - auto 
reallocate failed
[  880.554414] sd 1:0:0:0: [sdb] CDB: Read(10): 28 00 08 46 7f ff 00 00 20 00
[  880.554422] end_request: I/O error, dev sdb, sector 138838027
[  880.554444] ata2: EH complete
[  884.060206] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  884.060211] ata2.00: BMDMA stat 0x25
[  884.060215] ata2.00: failed command: READ DMA
[  884.060222] ata2.00: cmd c8/00:08:07:80:46/00:00:00:00:00/e8 tag 0 dma 4096 
in
[  884.060223]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  884.060226] ata2.00: status: { DRDY ERR }
[  884.060228] ata2.00: error: { UNC }
[  884.194395] ata2.00: configured for UDMA/133
[  884.194412] ata2: EH complete
[  887.475333] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  887.475338] ata2.00: BMDMA stat 0x25
[  887.475343] ata2.00: failed command: READ DMA
[  887.475349] ata2.00: cmd c8/00:08:07:80:46/00:00:00:00:00/e8 tag 0 dma 4096 
in
[  887.475350]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  887.475353] ata2.00: status: { DRDY ERR }
[  887.475355] ata2.00: error: { UNC }
[  887.584536] ata2.00: configured for UDMA/133
[  887.584554] ata2: EH complete
[  890.890465] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  890.890470] ata2.00: BMDMA stat 0x25
[  890.890474] ata2.00: failed command: READ DMA
[  890.890481] ata2.00: cmd c8/00:08:07:80:46/00:00:00:00:00/e8 tag 0 dma 4096 
in
[  890.890482]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  890.890485] ata2.00: status: { DRDY ERR }
[  890.890487] ata2.00: error: { UNC }
[  891.007992] ata2.00: configured for UDMA/133
[  891.008029] ata2: EH complete
[  894.313926] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  894.313931] ata2.00: BMDMA stat 0x25
[  894.313935] ata2.00: failed command: READ DMA
[  894.313941] ata2.00: cmd c8/00:08:07:80:46/00:00:00:00:00/e8 tag 0 dma 4096 
in
[  894.313943]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  894.313946] ata2.00: status: { DRDY ERR }
[  894.313948] ata2.00: error: { UNC }
[  894.431450] ata2.00: configured for UDMA/133
[  894.431468] ata2: EH complete
[  897.737383] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  897.737388] ata2.00: BMDMA stat 0x25
[  897.737392] ata2.00: failed command: READ DMA
[  897.737398] ata2.00: cmd c8/00:08:07:80:46/00:00:00:00:00/e8 tag 0 dma 4096 
in
[  897.737399]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  897.737402] ata2.00: status: { DRDY ERR }
[  897.737404] ata2.00: error: { UNC }
[  897.863247] ata2.00: configured for UDMA/133
[  897.863264] ata2: EH complete
[  901.102542] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  901.102546] ata2.00: BMDMA stat 0x25
[  901.102550] ata2.00: failed command: READ DMA
[  901.102556] ata2.00: cmd c8/00:08:07:80:46/00:00:00:00:00/e8 tag 0 dma 4096 
in
[  901.102557]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  901.102560] ata2.00: status: { DRDY ERR }
[  901.102562] ata2.00: error: { UNC }
[  901.220058] ata2.00: configured for UDMA/133
[  901.220076] sd 1:0:0:0: [sdb] Unhandled sense code
[  901.220078] sd 1:0:0:0: [sdb] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[  901.220082] sd 1:0:0:0: [sdb] Sense Key : Medium Error [current] [descriptor]
[  901.220086] Descriptor sense data with sense descriptors (in hex):
[  901.220088]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
[  901.220096]         08 46 80 0b 
[  901.220100] sd 1:0:0:0: [sdb] Add. Sense: Unrecovered read error - auto 
reallocate failed
[  901.220104] sd 1:0:0:0: [sdb] CDB: Read(10): 28 00 08 46 80 07 00 00 08 00
[  901.220112] end_request: I/O error, dev sdb, sector 138838027
[  901.220131] ata2: EH complete
[  906.333515] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  906.333520] ata2.00: BMDMA stat 0x25
[  906.333524] ata2.00: failed command: READ DMA
[  906.333530] ata2.00: cmd c8/00:08:07:80:46/00:00:00:00:00/e8 tag 0 dma 4096 
in
[  906.333532]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  906.333535] ata2.00: status: { DRDY ERR }
[  906.333537] ata2.00: error: { UNC }
[  906.459373] ata2.00: configured for UDMA/133
[  906.459390] ata2: EH complete
[  909.798626] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  909.798631] ata2.00: BMDMA stat 0x25
[  909.798635] ata2.00: failed command: READ DMA
[  909.798642] ata2.00: cmd c8/00:08:07:80:46/00:00:00:00:00/e8 tag 0 dma 4096 
in
[  909.798643]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  909.798646] ata2.00: status: { DRDY ERR }
[  909.798648] ata2.00: error: { UNC }
[  909.916178] ata2.00: configured for UDMA/133
[  909.916213] ata2: EH complete
[  913.238740] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  913.244727] ata2.00: BMDMA stat 0x25
[  913.251053] ata2.00: failed command: READ DMA
[  913.257635] ata2.00: cmd c8/00:08:07:80:46/00:00:00:00:00/e8 tag 0 dma 4096 
in
[  913.257636]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  913.257639] ata2.00: status: { DRDY ERR }
[  913.257641] ata2.00: error: { UNC }
[  913.381261] ata2.00: configured for UDMA/133
[  913.381277] ata2: EH complete
[  916.712217] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  916.718030] ata2.00: BMDMA stat 0x25
[  916.724734] ata2.00: failed command: READ DMA
[  916.731430] ata2.00: cmd c8/00:08:07:80:46/00:00:00:00:00/e8 tag 0 dma 4096 
in
[  916.731431]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  916.762444] ata2.00: status: { DRDY ERR }
[  916.771264] ata2.00: error: { UNC }
[  916.896341] ata2.00: configured for UDMA/133
[  916.896358] ata2: EH complete
[  920.227307] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  920.227312] ata2.00: BMDMA stat 0x25
[  920.227316] ata2.00: failed command: READ DMA
[  920.227322] ata2.00: cmd c8/00:08:07:80:46/00:00:00:00:00/e8 tag 0 dma 4096 
in
[  920.227324]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  920.227327] ata2.00: status: { DRDY ERR }
[  920.227329] ata2.00: error: { UNC }
[  920.361461] ata2.00: configured for UDMA/133
[  920.361479] ata2: EH complete
[  923.709069] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  923.709074] ata2.00: BMDMA stat 0x25
[  923.709078] ata2.00: failed command: READ DMA
[  923.709085] ata2.00: cmd c8/00:08:07:80:46/00:00:00:00:00/e8 tag 0 dma 4096 
in
[  923.709086]          res 51/40:00:0b:80:46/00:00:00:00:00/e8 Emask 0x9 
(media error)
[  923.709089] ata2.00: status: { DRDY ERR }
[  923.709091] ata2.00: error: { UNC }
[  923.826558] ata2.00: configured for UDMA/133
[  923.826577] sd 1:0:0:0: [sdb] Unhandled sense code
[  923.826579] sd 1:0:0:0: [sdb] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[  923.826583] sd 1:0:0:0: [sdb] Sense Key : Medium Error [current] [descriptor]
[  923.826588] Descriptor sense data with sense descriptors (in hex):
[  923.826590]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
[  923.826598]         08 46 80 0b 
[  923.826602] sd 1:0:0:0: [sdb] Add. Sense: Unrecovered read error - auto 
reallocate failed
[  923.826607] sd 1:0:0:0: [sdb] CDB: Read(10): 28 00 08 46 80 07 00 00 08 00
[  923.826615] end_request: I/O error, dev sdb, sector 138838027
[  923.826638] ata2: EH complete
[  985.498598] lo: Disabled Privacy Extensions

And so on. Sometimes after reboot it's needed to run fsck on /dev/sdb1
because drive is  broken (has many logical errors).

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: firefox 3.6.10+build1+nobinonly-0ubuntu0.10.04.1
ProcVersionSignature: Ubuntu 2.6.32-25.44-generic 2.6.32.21+drm33.7
Uname: Linux 2.6.32-25-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Thu Sep 30 17:38:41 2010
ExecutablePath: /usr/lib/firefox-3.6.10/firefox-bin
FirefoxPackages:
 firefox 3.6.10+build1+nobinonly-0ubuntu0.10.04.1
 firefox-gnome-support 3.6.10+build1+nobinonly-0ubuntu0.10.04.1
 firefox-branding 3.6.10+build1+nobinonly-0ubuntu0.10.04.1
 abroswer N/A
 abrowser-branding N/A
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
ProcEnviron:
 PATH=(custom, no user)
 LANG=ru_RU.utf8
 SHELL=/bin/bash
SourcePackage: firefox
XsessionErrors:
 (polkit-gnome-authentication-agent-1:2235): GLib-CRITICAL **: 
g_once_init_leave: assertion `initialization_value != 0' failed
 (exe:2612): Gdk-WARNING **: XID collision, trouble ahead

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 lucid

-- 
ata2.00: status: { DRDY ERR } ... failed command: READ DMA ...
https://bugs.launchpad.net/bugs/652059
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