[Bug 1274444] Re: echo string to /dev/kmsg fails to appear on /var/log/syslog
Steve Langasek
steve.langasek at canonical.com
Mon Jun 30 22:59:52 UTC 2014
thanks for tracking this down, Chris!
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https://bugs.launchpad.net/bugs/1274444
Title:
echo string to /dev/kmsg fails to appear on /var/log/syslog
Status in “linux” package in Ubuntu:
In Progress
Status in “rsyslog” package in Ubuntu:
New
Bug description:
[Impact]
In the precise 3.2 series kernel writing strings to /dev/kmsg appears and dmesg and /var/log/syslog, in 3.5 series kernel this does not happen properly even with the equivalent userspace packages.
I've already done a coarse bisect,
works v3.4
fails in v3.5-rc1
[Test Case]
Run the following script as root:
#!/bin/bash
STRING=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | head -c 32)
> /var/log/syslog
echo $STRING > /dev/kmsg
sleep 5
grep $STRING /var/log/syslog
# This should return 0.
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