Bug 90191 - data older than bdflush interval stays in memory till journal is full
Summary: data older than bdflush interval stays in memory till journal is full
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: kernel
Version: 7.3
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Arjan van de Ven
QA Contact: Brian Brock
URL: https://listman.redhat.com/pipermail/...
Depends On:
TreeView+ depends on / blocked
Reported: 2003-05-05 09:06 UTC by Yusuf Goolamabbas
Modified: 2007-04-18 16:53 UTC (History)
1 user (show)

Clone Of:
Last Closed: 2004-09-30 15:40:52 UTC

Attachments (Terms of Use)

Description Yusuf Goolamabbas 2003-05-05 09:06:17 UTC
Description of problem:

The problem is best described in this thread to ext3-users


As Neil Brown says, that this is due to a kernel bug where data older than
bdflush stays in memory till journal is full, I believe this is fixed by akpm
via the introduction of jbd_refile_buffer in fs/jbd/transaction.c but so far no
errata has been released which incorporates this fix.

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

Redhat Linux 7.3 running kernel 2.4.18-27 and activating the 3ware highmem-io
patch in the spec file

How reproducible:

Every time

Steps to Reproduce:

Actual results:

Have periodic stalls on the machine every few minutes when there is massive
writeout to this disk

Expected results:

Would see bdflush interval being honoured by kernel and not experience such
massive writeouts

Additional info:

Comment 1 Bugzilla owner 2004-09-30 15:40:52 UTC
Thanks for the bug report. However, Red Hat no longer maintains this version of
the product. Please upgrade to the latest version and open a new bug if the problem

The Fedora Legacy project (http://fedoralegacy.org/) maintains some older releases, 
and if you believe this bug is interesting to them, please report the problem in
the bug tracker at: http://bugzilla.fedora.us/

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