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SubjectRe: Kernelmessage to usbstick?
Oliver Neukum wrote:
> Am Saturday 10 January 2009 23:53:15 schrieb Andi Kleen:
>> Hans de Bruin <> writes:
>>> Would it be possible to send kernel messages to an usbstick? On
>>> poweroff my laptop displays a kernel trace and a final message:
>>> poweroff[3114] exited with preempt_count 2
>>> /etc/rc.d/rc.0: line 265: 3114 Segementation fault /sbin/poweroff.
>>> I don't have a serial cable within reach, but plenty of usbsticks.
>> There's a mtdoops.c indeed, but it currently only works on
>> MTD controlled flash devices, not usb sticks.
>> However usb sticks would need the USB subsystem to be running and it's
>> unlikely that will be the case really late in poweroff. So it might
>> not help.
> USB in turn needs PCI, interrupts and DMA.

I just found out even a serial cable would not help, since the only comm
device in my laptop ends in a build in modem. Since there is no parallel
printer port either I will have to use pen and paper. In the mean time,
rc1 broke my keyboard.


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