Messages in this thread | | | From | Kalin KOZHUHAROV <> | Subject | Re: SysReq & serial console | Date | Mon, 02 Jan 2006 16:29:38 +0900 |
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Reinhard Nissl wrote: > Hi, > > I'm facing a similar issue like the thread > > system keeps freezing once every 24 hours / random apps crashing > > reported, but I still have to try all those suggestions. > > For now, I've configured a serial console and enabled SysReq. When the > freeze happens on my system, the system is still pingable and SysReq can > for example sync the disks. I also can see on serial console which > SysReq command I selected (registers, tasks, SAK, etc.), but I do not > get any output of these commands on serial console. > > When issuing such a SysReq command before the system freezes I can see > the output of the command on a framebuffer console. > > So, is it possible to redirect the output of a SysReq command to a > serial console? Another wild guess: the syslog is still running and writes the output to the log. I had this "problem" with syslog-ng running on 2.6.14.4. The solution was to set syslog-ng to write to tty1 as well (now moved to tty12 to not scramble other MSGs). I was seeing just something like "SysRq: memory map" and now I can see the output below that MSG.
Not sure if that was inteded to do so, but I think the output of SysRq+<key> is better send to the console directly...
Kalin.
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