Public bug reported:
I'm not sure if this should be one bug report or many, and I don't have much
info to put in here.
My computer is stuttering (doing small one-second freeze, similar to a OOM but
it's not that), freezing (mouse and keyboard lock up, but wifi still blinks)
and hanging completely (although this might be the same as the latter, because
it happens when I open the lid - not a suspend/resume cycle, just closing the
lid while on AC, opening it, blank screen and no activity).
There is very little in the logs. The stuttering happens at random times, but
especially when plugging in AC, at which point I get a SATA error in the logs,
something like:
Jul 21 10:54:31 hulla kernel: [ 5913.787813] ata6: exception Emask 0x10 SAct
0x0 SErr 0x4040000 action 0xe frozen
Jul 21 10:54:31 hulla kernel: [ 5913.787823] ata6: irq_stat 0x00000040,
connection status changed
Jul 21 10:54:31 hulla kernel: [ 5913.787831] ata6: SError: { CommWake DevExch }
Jul 21 10:54:31 hulla kernel: [ 5913.787845] ata6: hard resetting link
Jul 21 10:54:41 hulla kernel: [ 5923.792597] ata6: softreset failed (device not
ready)
Jul 21 10:54:41 hulla kernel: [ 5923.792609] ata6: hard resetting link
setting /sys/class/scsi_host/host1/link_power_management_policy to min_power
stops the stuttering once it's started, and turning off IRRT seems to have
gotten rid of them (but the system is slower as a result).
I also get something similar almost every day, right after cron finishes,
Jul 24 15:57:10 hulla anacron[15536]: Normal exit (0 jobs run)
Jul 24 15:57:10 hulla kernel: [60453.149759] ata1.00: configured for UDMA/133
Jul 24 15:57:10 hulla kernel: [60453.149763] ata1: EH complete
Jul 24 15:57:10 hulla kernel: [60453.149847] sd 0:0:0:0: [sda] Write cache:
enabled, read cache: enabled, doesn't support DPO or FUA
Jul 24 15:57:10 hulla kernel: [60453.240632] EXT4-fs (dm-0): re-mounted. Opts:
errors=remount-ro,commit=0
Jul 24 15:57:10 hulla kernel: [60453.282743] EXT4-fs (sda1): re-mounted. Opts:
commit=0
Jul 24 15:57:11 hulla kernel: [60453.456970] ata2: exception Emask 0x10 SAct
0x0 SErr 0x50000 action 0xe frozen
Jul 24 15:57:11 hulla kernel: [60453.456980] ata2: irq_stat 0x00400000, PHY RDY
changed
Jul 24 15:57:11 hulla kernel: [60453.456988] ata2: SError: { PHYRdyChg CommWake
}
Jul 24 15:57:11 hulla kernel: [60453.457000] ata2: hard resetting link
Jul 24 15:57:12 hulla kernel: [60454.382582] ata2: SATA link up 1.5 Gbps
(SStatus 113 SControl 300)
Jul 24 15:57:12 hulla kernel: [60454.422044] ata2.00: configured for UDMA/100
Jul 24 15:57:12 hulla kernel: [60454.423791] ata2: EH complete
Jul 24 15:57:31 hulla kernel: [60473.892676] usbcore: deregistering interface
driver option
Jul 24 15:57:31 hulla kernel: [60473.892765] USB Serial deregistering driver
GSM modem (1-port)
Jul 24 15:57:31 hulla kernel: [60473.952548] usbcore: deregistering interface
driver usbserial_generic
Jul 24 15:57:31 hulla kernel: [60473.953014] USB Serial deregistering driver
generic
but I'm not sure it's the same thing.
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-10-generic 2.6.35-10.15
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.35-10.15-generic 2.6.35-rc5
Uname: Linux 2.6.35-10-generic x86_64
AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2:
ls: cannot access /dev/snd/: No such file or directory
AplayDevices: aplay: device_list:235: no soundcards found...
Architecture: amd64
ArecordDevices: arecord: device_list:235: no soundcards found...
Date: Mon Jul 26 09:07:17 2010
Frequency: Once a day.
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100224.1)
MachineType: Dell Inc. Latitude E6400
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.35-10-generic root=/dev/mapper/hostname ro
crashkernel=384M-2G:64M,2G-:128M quiet splash
ProcEnviron:
LANGUAGE=en_GB:en_US:en
PATH=(custom, user)
LANG=en_US.utf8
SHELL=/bin/bash
SourcePackage: linux
dmi.bios.date: 10/30/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A19
dmi.board.name: 0U692R
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA19:bd10/30/2009:svnDellInc.:pnLatitudeE6400:pvr:rvnDellInc.:rn0U692R:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude E6400
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug maverick needs-upstream-testing regression-potential
--
computer stuttering, freezing, hanging, and otherwise being uncooperative
https://bugs.launchpad.net/bugs/610055
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