Hard Freeze (Kernel Panic) During Heavy Disk I/O on ext4
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
High
|
Unassigned |
Bug Description
During heavy disk write activity (eg. swapping, writing large files to disk), the system freezes hard (becomes 100% unresponsive) with the CPU fan spun up high, and stays that way until a hard reset.
I've noticed this problem under two separate installs of 12.04 64-bit, on two different SSDs. There seems to be some race condition exposed by the pure speed of the writes?
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-
ProcVersionSign
Uname: Linux 3.2.0-32-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu14
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: VT1802 Analog [VT1802 Analog]
Subdevices: 2/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf7e10000 irq 45'
Mixer name : 'Intel PantherPoint HDMI'
Components : 'HDA:11068446,
Controls : 33
Simple ctrls : 18
Date: Wed Oct 24 15:24:35 2012
EcryptfsInUse: Yes
HibernationDevice: RESUME=
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
MachineType: System76, Inc. Gazelle Professional
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.79.1
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/16/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4.6.5
dmi.board.
dmi.board.name: Gazelle Professional
dmi.board.vendor: System76, Inc.
dmi.board.version: gazp7
dmi.chassis.
dmi.chassis.type: 9
dmi.chassis.vendor: No Enclosure
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: Gazelle Professional
dmi.product.
dmi.sys.vendor: System76, Inc.
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
Changed in linux (Ubuntu): | |
importance: | Medium → High |
Changed in linux (Ubuntu): | |
status: | Incomplete → Fix Released |
This may have already been reported upstream. This seems to be what keeps happening to me.
https:/ /bugzilla. kernel. org/show_ bug.cgi? id=44731