Messages in this thread | | | Date | Tue, 22 Jul 2003 12:39:39 -0700 | From | Larry LeBlanc <> | Subject | Re: Power Management/PCMCIA conflict causes system freeze |
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Larry LeBlanc wrote:
> Hi Russell, > > No luck...I enabled sysrq and verified it was working by issuing > sysrq-t and sysrq-p while the system was healthy. But when I cause the > hang sysrq-t and sysrq-p no longer do anything. One source I looked up > indicated that "Since it [Magic SysRq] is implemented as a part of the > keyboard driver, it is guaranteed to work most of the time, unless the > kernel itself is dead." So my conclusion is that my kernel is dead. > > Note: I tried sysrq-b on my system when it is healthy and it causes > the same hang. > > Larry > > Russell King wrote: > >>On Tue, Jul 22, 2003 at 11:24:25AM -0700, Larry LeBlanc wrote: >> >> >>>Any ideas? I've tried turning on debug in apm but all that happens is >>>the debug messages freeze with the rest of the system. Is there any >>>other location I should turn on debug messages to try to get an idea of >>>where the system is hanging? >>> >>> >> >>You need to enable sysrq, cause a hang, and then issue a sysrq-t and >>sysrq-p to find out where you're hanging. >> >>Note that if you're using a serial console, you need to hold the serial >>port open for sysrq requests to be processed. >> >> >> >
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