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Bug 149427 - DST Cache Overflow
DST Cache Overflow
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
i386 Linux
medium Severity high
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Assigned To: Dave Jones
Depends On:
  Show dependency treegraph
Reported: 2005-02-22 17:39 EST by Bas van Eijk
Modified: 2015-01-04 17:17 EST (History)
2 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2005-04-16 00:35:53 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Bas van Eijk 2005-02-22 17:39:21 EST
Description of problem:

After a while network crashes with error messages in
/var/log/messages: kernel: dst cache overflow

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

How reproducible:
Happens sometimes (once in three or four days). But when increasing
the value of /proc/sys/net/ipv4/route/max_size to a high value and
decreasing it later to a value lower then the value in grep
ip_dst_cache /proc/slabinfo will chrash the network right away with
the same errors in /var/log/messages.

Additional info:
I have already increased the value of
/proc/sys/net/ipv4/route/max_size but this is slowing the server down
and only delays the eventualy crash.
Comment 1 Dave Jones 2005-02-22 17:41:18 EST
firstly, update your kernel. 2.6.5 is ancient, and a hurrendous number
of bugs have been fixed since then.
Comment 2 Dave Jones 2005-04-16 00:35:53 EDT
Fedora Core 2 has now reached end of life, and no further updates will be
provided by Red Hat.  The Fedora legacy project will be producing further kernel
updates for security problems only.

If this bug has not been fixed in the latest Fedora Core 2 update kernel, please
try to reproduce it under Fedora Core 3, and reopen if necessary, changing the
product version accordingly.

Thank you.

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