Bug#375730: Page writeback broken after resume
Package: linux-image-2.6.16-2-686
Version: 2.6.16-15
Severity: important
Tags: patch
Hi,
Page writeback together with swsusp has been broken in 2.6 for some
time. After a suspend/resume the background page writeback is usually
not working. This can be seen by looking at /proc/vmstat: nr_dirty or
/proc/meminfo: Dirty. After a resume, the number of dirty pages are
not decreasing towards 0, but staying quite high. For more info see:
http://marc.theaimsgroup.com/?t=114813031000002
A patch to correct this problem is included in upstream since
2.6.17-git9.
Please include this patch in 2.6.16 and 2.6.17, as I think it's quite
important due to the risk of data loss if anything bad happens.
The patch can be found at:
http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17/2.6.17-mm2/broken-out/pdflush-handle-resume-wakeups.patch
Peter
-- System Information:
Debian Release: 3.1
APT prefers stable
APT policy: (900, 'stable'), (40, 'unstable'), (10, 'experimental')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.16-2-686
Locale: LANG=sv_SE.ISO-8859-1, LC_CTYPE=sv_SE.ISO-8859-1 (charmap=ISO-8859-1)
Versions of packages linux-image-2.6.16-2-686 depends on:
ii module-init-tools 3.2-pre1-2 tools for managing Linux kernel mo
ii yaird [linux-initramfs-tool 0.0.12-8bpo1 Yet Another mkInitRD
Versions of packages linux-image-2.6.16-2-686 recommends:
ii libc6-i686 2.3.2.ds1-22sarge3 GNU C Library: Shared libraries [i
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