should i try to install the rsyslog (4.2.0-2ubuntu6) package on karmic (it
affects karmic too)?
if its possible...
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Drop the dd process
https://bugs.launchpad.net/bugs/517773
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ubuntu-
I think this is not really a duplicate, but everybody with a different
kernel is having fun because of this change:
https://bugs.edge.launchpad.net/ubuntu/+source/rsyslog/+bug/523468
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Drop the dd process
https://bugs.launchpad.net/bugs/517773
You received this bug notification because you are a
Right, that's the problem that was mentioned before: rsyslog needs to
check if it can read from /proc/kmsg as non-root, and not drop
privileges if not. In other works, seteuid(), read() -> on fail,
seteuid(0) and keep it that way, on success -> setuid() -> permanently
drop privs.
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Drop the dd p
after this change rsyslog started eating 100% CPU as /proc/kmsg is not
user-readable here. Maybe that is because I am using the 2.6.33 kernel
from the mainline-ppa, but according to this bug it should work
nevertheless, right?
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Drop the dd process
https://bugs.launchpad.net/bugs/517773
You rece
This bug was fixed in the package rsyslog - 4.2.0-2ubuntu6
---
rsyslog (4.2.0-2ubuntu6) lucid; urgency=low
* debian/rsyslog.rsyslog-kmsg.upstart:
- Drop this additional job; kernel changes have meant that rsyslog
may read from /proc/kmsg directly after dropping privileges.
For the record: With the current kernel it is sufficient to change
$KLogPath to /proc/kmsg (in /etc/rsyslog.conf); it already does the
right thing of starting as root, opening the fds, and dropping privs
only afterwards (I get a fully working kern.log).
So the only thing we need to add there is th
For the impact, compare
http://people.canonical.com/~pitti/bootcharts/daniel-
lucid-20100212-1.png
with
http://people.canonical.com/~pitti/bootcharts/daniel-lucid-20100212-1
-no-rsyslog-dd.png
where the desktop starts 0.7 s earlier.
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Drop the dd process
https://bugs.launchpad.net/bugs/5
** Changed in: rsyslog (Ubuntu Lucid)
Status: New => Triaged
** Changed in: rsyslog (Ubuntu Lucid)
Milestone: None => ubuntu-10.04-beta-1
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Drop the dd process
https://bugs.launchpad.net/bugs/517773
You received this bug notification because you are a member of Ubuntu
Bugs, which is
The other implementation option would be to drop the dd upstart job for
good, and just let rsyslogd run as root if it detects that reading from
/proc/kmsg requires root.
Test case schema:
$ sudo python
[sudo] password for martin:
>>> import os
>>> f=open('/proc/kmsg')
>>> os.seteuid(1000)
>>> f.
