Reproducible dom-0 crash

Reproducible dom-0 crash

[Mike Wray]

Using unstable as of change set 1.1389.1.12 05/04/29 09:30,
I get the following dom-0 crash when xend starts:

(XEN) BUG at domain.c:136
(XEN) CPU:    0
(XEN) EIP:    0808:[<ff1057bc>]
(XEN) EFLAGS: 00010292   CONTEXT: hypervisor
(XEN) eax: 00000000   ebx: ff18c900   ecx: 000003f8   edx: 00000000
(XEN) esi: ff18b080   edi: feeea000   ebp: feee9000   esp: ff103f24
(XEN) ds: 0810   es: 0810   fs: 0810   gs: 0810   ss: 0810   cs: 0808
(XEN) Stack trace from ESP=ff103f24:
(XEN)    ff1455ec ff145622 00000088 c000eb4c 000002d3 000002d3 ff19c000 [ff11e91f]
(XEN)    0c2d3063 ff18c900 e0000000 00000008 fe310ae8 0c2ba063 ff18cb00 00000000
(XEN)    00000001 00000000 ff18c900 ff18c900 c4293f54 ff18b080 ff103fb8 [ff129f63]
(XEN)    ff18c900 00000000 0000c2d2 0000c2d2 feee8bfc 0c2d2bfc 00000000 ff18b080
(XEN)    c42d4000 00000000 00000000 [ff1346fe] ff103fb8 ffffffff c42d3000 0c2d3063
(XEN)    c42d4000 00000000 00000000 0000eb4c 000e0000 c01145e9 00000061 00010287
(XEN)    c4293f54 00000069 0000007b 0000007b 00000000 00000000 ff18b080
(XEN) Call Trace from ESP=ff103f24:
(XEN)    [<ff11e91f>] [<ff129f63>] [<ff1346fe>]

****************************************
CPU0 FATAL TRAP: vector = 6 (invalid operand)
[error_code=0000]
Aieee! CPU0 is toast...
****************************************

Mike

Re: Reproducible dom-0 crash

[Keir Fraser]

On 29 Apr 2005, at 11:44, Mike Wray wrote:

> Using unstable as of change set 1.1389.1.12 05/04/29 09:30,
> I get the following dom-0 crash when xend starts:

That's domain0 toasting itself. You need to rebuild the tools and the 
guest OS.

  -- Keir

Re: Reproducible dom-0 crash

[Mike Wray]

Keir Fraser wrote:
> 
> On 29 Apr 2005, at 11:44, Mike Wray wrote:
> 
>> Using unstable as of change set 1.1389.1.12 05/04/29 09:30,
>> I get the following dom-0 crash when xend starts:
> 
> 
> That's domain0 toasting itself. You need to rebuild the tools and the 
> guest OS.

I'd just done a 'make world', but just to be sure I removed everything
and did it again. Same thing - crash as soon as xend starts.

Mike

Re: Reproducible dom-0 crash

[Keir Fraser]

On 29 Apr 2005, at 17:32, Mike Wray wrote:

> Keir Fraser wrote:
>> On 29 Apr 2005, at 11:44, Mike Wray wrote:
>>> Using unstable as of change set 1.1389.1.12 05/04/29 09:30,
>>> I get the following dom-0 crash when xend starts:
>> That's domain0 toasting itself. You need to rebuild the tools and the 
>> guest OS.
>
> I'd just done a 'make world', but just to be sure I removed everything
> and did it again. Same thing - crash as soon as xend starts.

Unfortunately I can't reproduce this. I can run xend and start domUs 
just fine with the  current unstable tree.

  --- Keir

Re: Reproducible dom-0 crash

[Mike Wray]

Keir Fraser wrote:
> 
> On 29 Apr 2005, at 17:32, Mike Wray wrote:
> 
>> Keir Fraser wrote:
>>
>>> On 29 Apr 2005, at 11:44, Mike Wray wrote:
>>>
>>>> Using unstable as of change set 1.1389.1.12 05/04/29 09:30,
>>>> I get the following dom-0 crash when xend starts:
>>>
>>> That's domain0 toasting itself. You need to rebuild the tools and the 
>>> guest OS.
>>
>>
>> I'd just done a 'make world', but just to be sure I removed everything
>> and did it again. Same thing - crash as soon as xend starts.
> 
> 
> Unfortunately I can't reproduce this. I can run xend and start domUs 
> just fine with the  current unstable tree.
> 

Could it be compiler-related? Here's my gcc version:

gcc --version
gcc (GCC) 3.2.2 20030222 (Red Hat Linux 3.2.2-5)

Mike

Re: Reproducible dom-0 crash

[Anthony Liguori]

Mike Wray wrote:

>>
>> Unfortunately I can't reproduce this. I can run xend and start domUs 
>> just fine with the  current unstable tree.
>>
Are you coming with debug=y?

Regards,

> Could it be compiler-related? Here's my gcc version:
>
> gcc --version
> gcc (GCC) 3.2.2 20030222 (Red Hat Linux 3.2.2-5)
>
> Mike
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
>

Re: Reproducible dom-0 crash

[Keir Fraser]

On 29 Apr 2005, at 18:15, Anthony Liguori wrote:

> Mike Wray wrote:
>
>>>
>>> Unfortunately I can't reproduce this. I can run xend and start domUs 
>>> just fine with the  current unstable tree.
>>>
> Are you coming with debug=y?

Works for me both with and without debug=y. I have also tried compiling 
Xen itself with gcc-3.2.2-5 and that also works (w/ and w/o debug=y).

  -- Keir

> Regards,
>
>> Could it be compiler-related? Here's my gcc version:
>>
>> gcc --version
>> gcc (GCC) 3.2.2 20030222 (Red Hat Linux 3.2.2-5)
>>
>> Mike
>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@lists.xensource.com
>> http://lists.xensource.com/xen-devel
>>
>

Re: Reproducible dom-0 crash

[Mike Wray]

Keir Fraser wrote:
>
> Works for me both with and without debug=y. I have also tried compiling 
> Xen itself with gcc-3.2.2-5 and that also works (w/ and w/o debug=y).
> 

The crash was down to the pin cpu patch I was working on.
Unstable is fine without the patch.

Mike