[Bug 424810] Re: kernel log buffer to small...

[Daniel J Blueman]

When debugging the state of kernel tasks, eg by sending sysctrl-T, there
is too much information with a typical login session for the default log
buffer size, thus if the process is started earlier, the information is
lost (either from dmesg, or /var/log/messages) and the first part of the
output truncated:

$ cat /var/log/messages
Sep 19 11:42:32 exige kernel: [<ffffffff812732aa>] ? __up_read+0x9a/0xc0
Sep 19 11:42:32 exige kernel: [ 1803.421542]  [<ffffffff811293f9>] do_vfs_ioctl+0x79/0x370
Sep 19 11:42:32 exige kernel: [ 1803.421542]  [<ffffffff81077f79>] ? up_read+0x9/0x10
Sep 19 11:42:32 exige kernel: [ 1803.421542]  [<ffffffff81525fe4>] ? do_page_fault+0x194/0x370
Sep 19 11:42:32 exige kernel: [ 1803.421542]  [<ffffffff81129771>] sys_ioctl+0x81/0xa0
<snip>

I think it's important to be able to debug kernel problems fully, so
this is a quick and safe fix.

-- 
kernel log buffer to small...
https://bugs.launchpad.net/bugs/424810
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