Subject: Re: [PATCH] Revert sky2 to 0.13a

From: Carl-Daniel Hailfinger <[email-masked]>
Date: Mon, 27 Feb 2006 19:50:30 +0100

Ian Kumlien schrieb:
> On Sun, 2006-02-26 at 23:38 +0100, Carl-Daniel Hailfinger wrote:
> 
>>Ian Kumlien schrieb:
>>
>>>I also saw some oddities... portage stopped working, i dunno if this can
>>>be MSI related or so, else something is trashing memory in a very
>>>special way =P
>>
>>Yes, 0.15 causes memory corruption even if MSI is disabled.
> 
> 
> So if i run with iommu=forced or what the hell the option is called i
> should be able to catch these trashings?
> 
> I also found it odd that it was only python that suffered... Starting
> large and long running C apps worked just fine.

For me, it was usually timer list corruption during boot (50% probability)
or unidentified lockups (probably also timer list corruption) after a few
minutes of operation (40% probability).
Sample Oops message:

Unable to handle kernel NULL pointer dereference at 00000008
rip: run_timer_softirq+322
process udev
Call trace:
__do_softirq+68
call_softirq+30
do_softirq+46
do_IRQ+61
ret_from_intr+0
EOI

Regards,
Carl-Daniel