Package: nbd-client
Version: 1:2.8.7-4
Severity: important
NBD locks with the cfq scheduler in the stable kernel in Debian. It's
the same problem as happened with RedHat:
https://bugzilla.redhat.com/show_bug.cgi?id=241540
A potential fix that would work for most users is to change the initscript so
that it sets the scheduler to deadline or anticipatory.
It's a temporary fix, but it will work until we get the kernel patched.
I'm going to file a bug against the kernel as well.
My patch is:
--- nbd-client.old 2007-10-22 14:47:24.000000000 -0400
+++ nbd-client 2007-10-22 14:47:33.000000000 -0400
@@ -37,6 +37,7 @@
i=0
while [ ! -z ${NBD_DEVICE[$i]} ]
do
+ echo deadline > /sys/block/${NBD_DEVICE[$i]/\/dev\//}/queue/scheduler
$DAEMON ${NBD_HOST[$i]} ${NBD_PORT[$i]} ${NBD_DEVICE[$i]}
echo "connected ${NBD_DEVICE[$i]}"
i=`expr $i + 1`
-- System Information:
Debian Release: 4.0
APT prefers stable
APT policy: (500, 'stable')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-5-686
Locale: LANG=en_CA, LC_CTYPE=en_CA (charmap=ISO-8859-1)
Versions of packages nbd-client depends on:
ii debconf [debconf-2.0] 1.5.11 Debian configuration management sy
ii libc6 2.3.6.ds1-13etch2 GNU C Library: Shared libraries
nbd-client recommends no packages.
-- debconf information excluded
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