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Re: Panic on Mac Q700 with 2.2.25

On Tue, 6 Feb 2007, Christian T. Steigies wrote:

> On Tue, Feb 06, 2007 at 10:10:42AM -0700, Steve Brown wrote:
> > I am still getting lockups with 2.6.18 after three or four days.  I 
> > cannot get a serial console to work with this kernel, nor does the 
> > kernel write the panic text to the syslog.  What are my options to 
> > best record the stack trace?

I too had 2.6.18 crash this week, I wonder if it is the same issue.

To record the stack trace, you can't use the serial console since the 
serial driver isn't available. But you can still use the serial port.

First, install ZTerm on the mac. Use that to verify that your remote host 
will capture serial output at 9600 baud, no parity, 8 data bits.

Then boot linux on the mac with "debug=ser" or "debug=ser1" added to the 
kernel command line (if you are using the modem port. Use "debug=ser2" for 
the printer port). Make sure Penguin is set to preconfigure the serial 

> > Any other kernels I should try?  This machine is only a dumb web 
> > server. I only need the onboard SONIC Ethernet as far as drivers go, 
> > though serial would be nice for debugging like this.
> I finally managed to get Finn's latest patches applied, you could try my 
> test build at:
> http://people.debian.org/~cts/debian-m68k/linux-image/linux-image-2.6.18-4-mac_2.6.18.dfsg.1-11_m68k.deb

Certainly worth a try.



> Christian

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