| 2010-04-17 10:17:33 |
Rocko |
description |
Binary package hint: rsyslog
Kernel logging is disabled on all kernels other than the stock Ubuntu kernel, because rsyslog fails to read kmsg. Instead, it reports:
"kernel: imklog: Cannot read proc file system, 1."
This is intentional on older kernels (see bug #523610, comment 35), but it is also happening on the latest 2.6.33.2 kernel:
sudo python
>>> import os
>>> f=open('/proc/kmsg')
>>> os.seteuid(1000)
>>> f.read(0)
''
>>> f.read(1)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
IOError: [Errno 1] Operation not permitted
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: rsyslog 4.2.0-2ubuntu8
Uname: Linux 2.6.33.2-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
CheckboxSubmission: 1bd8e90541d49b96c13cbfcc9baf103b
CheckboxSystem: d00f84de8a555815fa1c4660280da308
Date: Sat Apr 17 17:58:38 2010
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100224.1)
ProcEnviron:
PATH=(custom, user)
LANG=en_AU.utf8
SHELL=/bin/bash
SourcePackage: rsyslog |
Binary package hint: rsyslog
Kernel logging is disabled on all kernels other than the stock Ubuntu kernel, because rsyslog fails to read kmsg. Instead, it reports:
"kernel: imklog: Cannot read proc file system, 1."
This is intentional on older kernels (see bug #523610, comment 35), but it is also happening on the latest 2.6.33.2 kernel:
sudo python
>>> import os
>>> f=open('/proc/kmsg')
>>> os.seteuid(1000)
>>> f.read(0)
''
>>> f.read(1)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
IOError: [Errno 1] Operation not permitted
I don't believe it's in the spirit of things to disable logging on newer kernels (it cuts out a large number of testers for rc kernels, for instance). Why is it necessary for rsymlog to drop root privileges and disable logging if it can't access kmsg?
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: rsyslog 4.2.0-2ubuntu8
Uname: Linux 2.6.33.2-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
CheckboxSubmission: 1bd8e90541d49b96c13cbfcc9baf103b
CheckboxSystem: d00f84de8a555815fa1c4660280da308
Date: Sat Apr 17 17:58:38 2010
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100224.1)
ProcEnviron:
PATH=(custom, user)
LANG=en_AU.utf8
SHELL=/bin/bash
SourcePackage: rsyslog
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