[LinuxPPS] 2.6.25.1 Problem

Rodolfo Giometti giometti at enneenne.com
Sun May 4 20:19:35 CEST 2008


On Sun, May 04, 2008 at 07:33:05PM +0200, Johan Bejeryd wrote:
> Hello,
> 
> I decided to test kernel 2.6.25.1 with the low level irq support, but
> there is a problem. Directly after "./ppsctl /dev/ttyS0 enable"  this
> error message appears:
> 
> BUG: unable to handle kernel NULL pointer dereference at 000000c3
> IP: [<c0576a0f>] pps_register_cdev+0x94/0xc0
> *pde = 34a93067 *pte = 00000000
> Oops: 0002 [#1] SMP
> 
> I have not had such problems with earlier kernels and Linuxpps-patches
> on this hardware. From recent postings it appears that the patch is
> working for you. What could be causing my problem?
> 
> The used patch was ntp-pps-2.6.24-ter.diff.

Just try using *only* ntp-pps-2.6.24-ter.diff patch and see if you
still get the error.

Ciao,

Rodolfo

-- 

GNU/Linux Solutions                  e-mail:    giometti at enneenne.com
Linux Device Driver                             giometti at linux.it
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