Messages in this thread | | | Date | Sun, 6 Jan 2008 00:20:50 +0300 | Subject | Re: BUG: unable to handle kernel paging request at virtual address | From | Alexey Dobriyan <> |
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On Sun, Jan 06, 2008 at 12:30:34AM +0400, Alexander Shaduri wrote: > > Get a serial console? Take another box, plug e.g. pl2303-based > > usb-to-serial (several bucks these days) into it, stick null-modem > > convertor (ditto) on its serial end and attach to ttyS0 on the > > victim. console=ttyS0 on victim, something like minicom on watcher > > and tell it to capture log into file... > > I will try that (as soon as I acquire the necessary parts).
netconsole should be more quick: * one more box with ethernet card * CONFIG_NETCONSOLE=y * CONFIG_ {your NIC driver} =y * on crashing box add the following line to the kernel boot options
netconsole=@src-ip/eth0,9353@dst-ip/dst-MAC
where scr-ip -- IP of crashing box eth0 -- interface on crashing box 9353 -- destination port (for netcat to listen on target box) dst-ip -- IP of a box which collect logs dst-MAC -- MAC of the interface on destination box
* on destination box run netcat
nc -u -l -p 9353 &>1.log
[* add ignore_loglevel on crashing box if paranoid]
Now reboot crashing box and reproduce the bug, chances are high that it will send oops over network.
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