Hello Louis, On Tue, 22 Jan 2013 14:52:09 +0100 Bouchard Louis <louis.bouchard at canonical.com> wrote: > Hello Kumagai-san, > > Following a suggestion from Dave Anderson, I have tested the > makedumpfile --dump-dmesg option. After some research, I realized that > the option was no longer working on 3.5 kernel and later. Here is an > example of the result (on Ubuntu Quantal) : > > # makedumpfile --dump-dmesg /proc/vmcore /tmp/dmesg > dump_dmesg: Can't find some symbols for log_buf. > > makedumpfile Failed. > > On 3.5 kernel and later, the log_end symbol no longer exists. > > This is caused by the change from byte-buffer structure to > variable-length record buffer of the kernel log buffer introduced by > this commit : > http://goo.gl/NCgLI > > I am curious to know if you were aware of this change and if you had > done some work on modifying dump_dmesg() accordingly ? Just so I don't > go off and try to work on something that you have already solved. Thanks for your report. I haven't been aware of this, so could I ask you to help me ? Thanks Atsushi Kumagai > Kind regards, > > ...Louis > -- > Louis Bouchard > Backline Support Analyst > Canonical Ltd > Ubuntu support: http://landscape.canonical.com
