System sporadically freezes during suspend to RAM
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Linux |
Fix Released
|
Medium
|
|||
linux (Ubuntu) |
Incomplete
|
Medium
|
Unassigned |
Bug Description
After issuing a suspend to RAM operation using pm-suspend the system sporadically hangs while initiating the suspend with the following symptoms:
- HDDs are already spun down
- Fans are still running
- The power LED is constantly illuminated (instead of the typical blinking sequence in S3)
- MagicSysRq is no longer working
This bug is a regression from Maverick (Kernel 2.6.35) where suspend to RAM was working reliably. The issue can also be reproduced with a vanilla 2.6.38 kernel (even with a 2.6.36 kernel). Attempts to bisect the root cause have failed so far because of the sporadic nature of the issue.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image (not installed)
Regression: Yes
Reproducible: Yes
ProcVersionSign
Uname: Linux 2.6.38-7-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf9ff8000 irq 46'
Mixer name : 'Realtek ALC1200'
Components : 'HDA:10ec0888,
Controls : 40
Simple ctrls : 22
Card1.Amixer.info:
Card hw:1 'U0x46d0x809'/'USB Device 0x46d:0x809 at usb-0000:
Mixer name : 'USB Mixer'
Components : 'USB046d:0809'
Controls : 2
Simple ctrls : 1
Card1.Amixer.
Simple mixer control 'Mic',0
Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
Capture channels: Mono
Limits: Capture 0 - 17
Mono: Capture 0 [0%] [6.00dB] [off]
Card2.Amixer.info:
Card hw:2 'Live'/'SB Live! 5.1 [SB0060] (rev.7, serial:0x80611102) at 0xe880, irq 18'
Mixer name : 'SigmaTel STAC9708,11'
Components : 'AC97a:83847608'
Controls : 224
Simple ctrls : 45
CurrentDmesg: [ 199.247673] ppdev: user-space parallel port driver
Date: Fri Apr 1 00:26:39 2011
IwConfig:
lo no wireless extensions.
eth0 no wireless extensions.
LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110330)
MachineType: System manufacturer P5QL PRO
ProcEnviron:
LANGUAGE=en_US:en
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: file=/cdrom/
RelatedPackageV
linux-
linux-
linux-firmware 1.49
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/01/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1004
dmi.board.
dmi.board.name: P5QL PRO
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: P5QL PRO
dmi.product.
dmi.sys.vendor: System manufacturer
tags: | removed: needs-upstream-testing |
Changed in linux: | |
importance: | Unknown → Medium |
status: | Unknown → Confirmed |
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
Changed in linux: | |
status: | Confirmed → Incomplete |
Changed in linux: | |
status: | Incomplete → Fix Released |
The probability of hitting the bug is probably > 0.1, maybe even > 0.33.