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Re: [Xen-devel] double fault in xen

To: Kurt Hackel <kurt.hackel@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] double fault in xen
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Sun, 22 Apr 2007 10:51:19 +0100
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Already fixed, c/s 14761.

 -- Keir

On 21/4/07 20:53, "Kurt Hackel" <kurt.hackel@xxxxxxxxxx> wrote:

> Hi,
> 
> I'm hitting a double fault in the hypervisor with cs 14462 while running
> a perl monitoring script that hits a bunch of /proc entries.  Looks like this:
> 
> (XEN) *** DOUBLE FAULT ***
> (XEN) ----[ Xen-3.0-unstable  x86_64  debug=n  Not tainted ]----
> (XEN) CPU:    3
> (XEN) RIP:    e008:[<ffff830000178476>] handle_exception+0x16/0x18
> (XEN) RFLAGS: 0000000000010086
> (XEN) rax: ffff88001a523f28   rbx: 0000000000000000   rcx: ffff83000013e100
> (XEN) rdx: 0000000000000000   rsi: ffff8300001964a0   rdi: ffff88001a5220f8
> (XEN) rbp: ffff88001a5220f8   rsp: ffff88001a522000   r8: 0000000000000000
> (XEN) r9:  0000000000000000   r10: 0000000000000000   r11: 0000000000000256
> (XEN) r12: 0000000000000010   r13: 0000000000000000   r14: ffff8300001bb2a0
> (XEN) r15: 0000000000000000
> (XEN)
> (XEN) ****************************************
> (XEN) Panic on CPU 3:
> (XEN) DOUBLE FAULT -- system shutdown
> (XEN) ****************************************
> (XEN)
> (XEN) Reboot in five seconds...
> 
> I have the saved-off vmcore, but haven't been able to do much with it
> yet.  In gdb I can disassemble functions in the 0xffff83- range but I
> can't inspect data at 0xffff88-.  Any advice on debugging would be much
> appreciated.
> 
> Thanks
> kurt
> 
> Kurt C. Hackel | Principal Software Developer | 650.506.0681
> Oracle Corporate Architecture - Linux Engineering
> 500 Oracle Parkway M/S 5OP3 Redwood Shores California 94065
> 
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