Re: CPU Lockup with 2.4.21 and 2.4.22-pre

From: Michael Troß (
Date: Tue Jul 22 2003 - 05:24:24 EST

Am Mon, 2003-07-21 um 16.17 schrieb Udo A. Steinberg:
> On Mon, 21 Jul 2003 16:12:26 +0200 Udo A. Steinberg (UAS) wrote:
> UAS> We have a Dual-Xeon machine with Hyperthreading which keeps locking
> up hard,
> UAS> so that not even Sysrq works anymore. I have captured such a lockup
> using the
> UAS> NMI oopser. Below you'll find the lockup fed through ksymoops. Note
> that
> UAS> after CPU3 locked up, CPU2 did too. But that lockup couldn't be
> captured
> UAS> anymore. Kernel is a monolithic 2.4.22-pre6. Problem also happened
> on
> UAS> plain 2.4.21. I can provide more information wrt. hardware, config
> etc.
> UAS> on request.

Would be really useful if you do so.

> Sorry, I used the wrong Below is the fixed decode. Looks
> like
> the lockup is caused by the 3rd party Compushack FDDI driver.

What makes you believe this? There is no matching code sequence like the
one from your dump in the driver, to be exact: in a driver compiled with
gcc 3.3 and kernel 2.4.21.

> Regards,
> -Udo.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

This archive was generated by hypermail 2b29 : Wed Jul 23 2003 - 22:00:46 EST