2.4.10-ac1 hard lockup (APM+nvidia related) and reiser adds ^@

[Ricardo Galli]

Yes I know... I must complain to nvidia, but it happens only with this
kernel, so I report it just in case.

Doing an apm -s with the nvidia module loaded, the kernel locks hard.
With Linus kernel, the nvidia just rejects the suspend:

kernel: NVRM: avoiding suspend request, don't want to shutdown!!

There is no logs, ctrl-alt-print doesn't work and a ping doesn't neither.
It's strange than the machine locks again next reboot, only avoided cold
reboot.

If I kill all xdm/X processes and rmmod nvidia modules, apm -s it works
nicely.

During these tests, I realised that reiserfs still added funny chars to
log files after a reboot. Thousands of "^@" in all syslog files (hope only
there...).

OTH, I am finding these kernel errors since vanilla 2.4.10:

Oct 12 21:35:32 linux kernel: mtrr: no MTRR for f0000000,2000000 found

Hope this helps.

Regards,

--ricardo