| 2008-12-29 14:37:53 |
Chris Osgood |
bug |
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added bug |
| 2008-12-29 14:37:53 |
Chris Osgood |
bug |
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added attachment 'lockups.txt' (lockups.txt) |
| 2009-01-02 15:58:45 |
Chris Osgood |
description |
Running Ubuntu 8.10 Intrepid Desktop 64-bit with all current updates.
Kernel is 2.6.27-9-generic #1 SMP Thu Nov 20 22:15:32 UTC 2008 x86_64 GNU/Linux.
System is Abit IP35-Pro motherboard, Q9550 CPU, 8 GB RAM, 4 Western Digital WD6401AALS-00L3B2 drives (640 GB, SATA).
MemTest and drive tests returns no errors. Using a RAID5 array across the 4 drives with XFS as the file system.
It seems when the system gets under heavy I/O load on the RAID array it will eventually freeze (requiring a hard reboot). The errors are inconsistent in how long they take to show up and the specific applications causing the I/O load don't seem to matter but the error always shows up eventually. It has already happened dozens of times after I start a load on the machine.
Examples of scenarios where the bug has appeared:
* Running Bonnie++ benchmarks. I have seen this kill the system within 30 seconds. Other times it causes no problems.
* Running a large SQlite import while simultaneously tar/gzip'ing a large directory structure.
* Running a large MySql import while tar/gzip'ing a large directory structure.
* Multiple tar/gzip processes running at the same time.
The specific process that gets the "CPU: soft lockup" error varies. I have seen it lockup in kswapd, pdflush, gzip, sqlite3, bonnie++ (see attached logs).
The error appears to be related to XFS because all the stack traces have XFS calls in them. I have attached some of my stack traces. They repeat many times and I have only included the first distinct events before my system crashed. |
Running Ubuntu 8.10 Intrepid Desktop 64-bit with all current updates.
Kernel is 2.6.27-9-generic #1 SMP Thu Nov 20 22:15:32 UTC 2008 x86_64 GNU/Linux.
System is Abit IP35-Pro motherboard, Q9550 CPU, 8 GB RAM, 4 Western Digital WD6401AALS-00L3B2 drives (640 GB, SATA).
MemTest and drive tests returns no errors. Using a RAID5 array across the 4 drives with XFS and Ext3 as the file systems.
It seems when the system gets under heavy I/O load on the RAID array it will eventually freeze (requiring a hard reboot). The errors are inconsistent in how long they take to show up and the specific applications causing the I/O load don't seem to matter but the error always shows up eventually. It has already happened dozens of times after I start a load on the machine.
Examples of scenarios where the bug has appeared:
* Running Bonnie++ benchmarks. I have seen this kill the system within 30 seconds. Other times it causes no problems.
* Running a large SQlite import while simultaneously tar/gzip'ing a large directory structure.
* Running a large MySql import while tar/gzip'ing a large directory structure.
* Multiple tar/gzip processes running at the same time.
The specific process that gets the "CPU: soft lockup" error varies. I have seen it lockup in kswapd, pdflush, gzip, sqlite3, bonnie++ (see attached logs).
I have attached some of my stack traces. They repeat many times and I have only included the first distinct events before my system crashed. |
|
| 2009-01-02 15:58:45 |
Chris Osgood |
title |
XFS on RAID array causing "BUG: soft lockup" errors/system freeze |
RAID array causing "BUG: soft lockup" errors/system freeze |
|
| 2009-01-02 16:03:36 |
Chris Osgood |
bug |
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added attachment 'lockups2.txt' (lockups2.txt) |
| 2009-02-07 22:10:18 |
DaveAbrahams |
None: bugtargetdisplayname |
Ubuntu |
mdadm (Ubuntu) |
|
| 2009-02-07 22:10:18 |
DaveAbrahams |
None: bugtargetname |
ubuntu |
mdadm (Ubuntu) |
|
| 2009-02-07 22:10:18 |
DaveAbrahams |
None: statusexplanation |
|
|
|
| 2009-02-07 22:10:18 |
DaveAbrahams |
None: title |
Bug #312163 in Ubuntu: "RAID array causing "BUG: soft lockup" errors/system freeze" |
Bug #312163 in mdadm (Ubuntu): "RAID array causing "BUG: soft lockup" errors/system freeze" |
|
| 2009-04-13 02:16:12 |
Andres Mujica |
affects |
mdadm (Ubuntu) |
linux (Ubuntu) |
|
| 2009-04-13 02:16:12 |
Andres Mujica |
linux (Ubuntu): importance |
Undecided |
High |
|
| 2009-04-13 02:16:12 |
Andres Mujica |
linux (Ubuntu): status |
New |
Triaged |
|
| 2009-04-13 02:16:26 |
Andres Mujica |
tags |
|
regression-release |
|
| 2009-04-23 12:13:03 |
Andy Whitcroft |
linux (Ubuntu): assignee |
|
Andy Whitcroft (apw) |
|
| 2009-04-23 12:13:16 |
Andy Whitcroft |
linux (Ubuntu): status |
Triaged |
Incomplete |
|
| 2009-04-28 22:47:12 |
Deepak Sarda |
attachment added |
|
kernel-oops-29-apr.txt http://launchpadlibrarian.net/26098379/kernel-oops-29-apr.txt |
|
| 2009-05-01 07:24:36 |
tom |
attachment added |
|
xfs_oops.txt http://launchpadlibrarian.net/26205627/xfs_oops.txt |
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| 2009-05-02 07:13:56 |
tom |
attachment added |
|
xfs_oops_2.txt http://launchpadlibrarian.net/26240729/xfs_oops_2.txt |
|
| 2009-05-11 15:20:01 |
Andy Whitcroft |
nominated for series |
|
Ubuntu Intrepid |
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| 2009-05-11 15:21:00 |
Leann Ogasawara |
bug task added |
|
linux (Ubuntu Intrepid) |
|
| 2009-05-11 15:29:19 |
Andy Whitcroft |
linux (Ubuntu Intrepid): status |
New |
Incomplete |
|
| 2009-05-11 15:29:19 |
Andy Whitcroft |
linux (Ubuntu Intrepid): assignee |
|
Andy Whitcroft (apw) |
|
| 2009-05-11 15:29:35 |
Andy Whitcroft |
linux (Ubuntu): status |
Incomplete |
Fix Released |
|
| 2009-05-12 08:46:17 |
Andy Whitcroft |
linux (Ubuntu Intrepid): importance |
Undecided |
High |
|
| 2009-05-13 08:13:01 |
Andy Whitcroft |
linux (Ubuntu Intrepid): status |
Incomplete |
Fix Released |
|
| 2009-05-13 08:13:01 |
Andy Whitcroft |
linux (Ubuntu Intrepid): milestone |
|
intrepid-updates |
|
| 2009-05-13 09:25:02 |
dee |
removed subscriber dee |
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|
|
| 2009-05-16 03:10:22 |
Deepak Sarda |
attachment added |
|
kernel-oops-16-May.txt http://launchpadlibrarian.net/26795599/kernel-oops-16-May.txt |
|
