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Bug 191119 - netdump hangs if network cables are removed
netdump hangs if network cables are removed
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: netdump (Show other bugs)
x86_64 Linux
medium Severity medium
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Assigned To: Thomas Graf
Depends On:
  Show dependency treegraph
Reported: 2006-05-08 19:50 EDT by Rick Stern
Modified: 2014-06-18 04:29 EDT (History)
1 user (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2008-06-13 16:53:29 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Rick Stern 2006-05-08 19:50:25 EDT
Description of problem:

When netdump is set up, and then the network cables are removed, the system
hangs after a crashes

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

How reproducible:

Steps to Reproduce:
1. Setup netdump
2.  Remove network cables
3.  Crash system (sysctl -w kernel.sysrq=1;echo c > /proc/sysrq-trigger)
Actual results:
The terminal window assocaited with this command seems to scroll for a while,
then hang.  If the network cables are re-inserted later, the system is still hung.

Expected results:
Either do the dump after the cables are re-inserted or just reboot.

Additional info:
Comment 1 Rick Stern 2006-05-10 19:45:21 EDT
Customer found out that is netconsole was not running that this bug didn't show.
 Seems to indicate a problem there.  Seach showed that fix for bugzilla 127815
(from RH3) did not make it into RH4.  Created bugzilla 191342 to track that.

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