Re: RTC causes hard lockups in 2.5.70-mm8

[Danek Duvall]

On Thu, Jun 12, 2003 at 10:12:06PM -0400, Nathaniel W. Filardo wrote:

> If I set CONFIG_RTC=m and rebuild, when the kernel autoloads rtc.ko the
> system immediately locks hard, not responding even to magic SysRq series.
> Backing out either of the rtc-* patches from -mm8 does not seem to fix the
> problem.
> 
> Hardware is a Fujitsu P2120 with Transmeta TM8500 with ALi chipset:

I saw this on the same hardware on 2.4.21-rc7-ac1, and I've seen a
report of the same on -rc1-ac3, but not on module loading, on accessing
the driver.  The problem doesn't seem to be present when running the non
-acX kernels.

Alan asked whether it was a specific in or out instruction in the
driver, but I don't know how to find out.

Danek