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Re: [Xen-devel] memory fault

To: David Becker <becker@xxxxxxxxxxx>
Subject: Re: [Xen-devel] memory fault
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Sat, 24 Apr 2004 09:14:22 +0100
Cc: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>, Ian Pratt <Ian.Pratt@xxxxxxxxxxxx>, Xen-devel@xxxxxxxxxxxxxxxxxxxxx
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The "weird failure" message comes out only occasionally?

I guess if that is the case then it is harmless, but I added some
extra tracing to the e100 driver so we can take a closer look if we
like. 

I guess the driver gets into an occasional exceptional state such that
this message appears and then it executes a rare function in the
receive path that causes a blow-up. I've now checked in a fix for the
bad receive function so that should get rid of the crash, but not the
tx warning.

 -- Keir

> I am seeing xen crash again with the 'Weird' log message.
> This time it is xen-1.3-devel using an eepro100 NIC:
>     (XEN) Weird failure in hard_start_xmit!
> 
> I got a couple oops messages pasted below, and the xen startup messages.
> My build of xen.gz and xenolinux.gz are here:
>     http://www.cs.duke.edu/~becker/xen/
> 
> The hardware is an IBM x330 PIII with 256MB phys mem.  DOM0 has 40MB and DOM1
> has almost 190MB.  Both domains have 1GB of swap space.  DOM0 runs off
> of real partitions and DOM1 off of virtual disks.
>    # xc_dom_control.py list
>    Dom  Name             Mem(kb)  CPU  State  Time(s)
>    0    Domain-0           40000   0    r-       87
>    1    athos07           189440   0    --      111


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