Subject: Re: Recent macppc kernels hang under load
To: Chuck Silvers <chuq@chuq.com>
From: Matt Thomas <matt@3am-software.com>
List: port-macppc
Date: 09/15/2003 10:57:25
On Monday, September 15, 2003, at 09:28 AM, Chuck Silvers wrote:

> On Mon, Sep 15, 2003 at 10:22:35AM +0100, Ian Fry wrote:
>> On Sun, Aug 31, 2003 at 03:06:12AM -0500, Dave Huang wrote:
>>> On Sat, Aug 30, 2003 at 03:58:13PM -0700, Chuck Silvers wrote:
>>>> I take it that this used to work before 3 or 4 weeks ago...
>>>> if so, you could binary search for the check-in that broke it.
>>> Well, I'd get random SIGILLs, but the kernel never died...
>>
>> I've seen this too, when trying to build Mozilla on my G3 iBook - the
>> build runs for maybe 10 or 15 minutes, and then then X restarts (it 
>> looks
>> like the X server gets killed, rather than any of the compiler 
>> processes).
>> I turned on the logsigexit sysctl and that reported SIGILL killed the
>> process.
>
> hmm, so the non-MP case has problems too.  I was hoping that it was
> an MP-only bug.
>
> SIGILL seems likely to be caused by missing icache invalidation.

And/or swapping is broken.

-- 
Matt Thomas                     email: matt@3am-software.com
3am Software Foundry              www: 
http://3am-software.com/bio/matt/ Cupertino, CA              
disclaimer: I avow all knowledge of this message.