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Message #69470
[Bug 1274444] Re: echo string to /dev/kmsg fails to appear on /var/log/syslog
Attaching a patch here for utopic. I know there is a pending merge, so
perhaps this can be applied on top of that merge.
** Changed in: linux (Ubuntu)
Status: In Progress => Invalid
** Changed in: rsyslog (Ubuntu)
Assignee: (unassigned) => Chris J Arges (arges)
** Changed in: linux (Ubuntu)
Assignee: Chris J Arges (arges) => (unassigned)
** Changed in: rsyslog (Ubuntu)
Importance: Undecided => Medium
** Changed in: rsyslog (Ubuntu)
Status: New => In Progress
** Patch added: "fix-lp1274444.debdiff"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1274444/+attachment/4143416/+files/fix-lp1274444.debdiff
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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:
Invalid
Status in “rsyslog” package in Ubuntu:
In Progress
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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References