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Bug 54129 - System hangs completely (unaligned trap?)
System hangs completely (unaligned trap?)
Product: Red Hat Linux
Classification: Retired
Component: kernel (Show other bugs)
alpha Linux
high Severity high
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Assigned To: Arjan van de Ven
Brock Organ
Depends On:
  Show dependency treegraph
Reported: 2001-09-27 23:35 EDT by Wonmuk Hwang
Modified: 2005-10-31 17:00 EST (History)
0 users

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2003-06-07 14:18:48 EDT
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Regression: ---
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Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Wonmuk Hwang 2001-09-27 23:35:52 EDT
From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows 98)

Description of problem:
System hangs in the middle of using it. When hangs, nothing works(any 
keyobard input or ssh from aother machine). Have to use hardware reset 

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
Seems to occur when many jobs are running, but the jobs never
exceeded even the RAM size.

Additional info:

(1) System: 21264 dual CPU 833MHz alpha w/ 2GB RAM. 
    Kernel version 2.4.3

(2) Last lines in /var/log/messages :
Sep 27 19:35:03 yogi kernel: X(984): unaligned trap at 0000000120cf4144: 
0000000120eca852 2c 28
Sep 27 19:35:03 yogi kernel: X(984): unaligned trap at 0000000120cf4144: 
0000000120eca856 2c 28
.... there are bunch of messages same as above.

(3) Recent change made to the kernel :
Enabled 'ide-scsi emualtion' in order to use IDE CD-RW.

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