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Bug 452740 - Kernel crash of Domain-0 while doing multiple dd's on a raid device.
Summary: Kernel crash of Domain-0 while doing multiple dd's on a raid device.
Keywords:
Status: CLOSED DUPLICATE of bug 452175
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel-xen
Version: 5.2
Hardware: i386
OS: Linux
low
high
Target Milestone: rc
: ---
Assignee: Xen Maintainance List
QA Contact: Martin Jenner
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2008-06-24 18:25 UTC by Masoud Sharbiani
Modified: 2008-12-09 21:28 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2008-12-09 21:28:53 UTC
Target Upstream Version:

Attachments (Terms of Use)
Crash log, as captured from ttyS0 (28.50 KB, text/plain)
2008-06-24 18:25 UTC, Masoud Sharbiani 		no flags Details
Add an attachment (proposed patch, testcase, etc.)

Description Masoud Sharbiani 2008-06-24 18:25:54 UTC 
Description of problem:
I have a Dual P4 Xeon machine (32 bit Xeons), with hyperthreading enabled and 6
gigs of memory, with 6 IDE drives. 4 of these are on a separate controller card,
and setup as a soft raid device /dev/md0, mounted on /data. If I try and run
multiple 'dd if=/dev/zero of=/data', it crashes.


Version-Release number of selected component (if applicable):
2.6.18-92.el5xen

How reproducible:
Happens every time.

Steps to Reproduce:
1. Run multiple instances of dd if=/dev/zero of=/data/bigfatfile.$RANDOM on a
device.
2. Reducing the amount of memory available to Domain-0 seems to trigger it sooner.

  
Actual results:
System crashes.




Expected results:


Additional info:
Comment 1 Masoud Sharbiani 2008-06-24 18:25:54 UTC 
Created attachment 310169 [details]
Crash log, as captured from ttyS0
Comment 2 Bill Burns 2008-12-09 21:28:53 UTC 
Closing this as a duplicate of Bugzilla 452175 as it appears to be the same issue.

*** This bug has been marked as a duplicate of bug 452175 ***
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