[Fedora-xen] Xen 3.4.1 dom0 crash on boot
M A Young
m.a.young at durham.ac.uk
Tue Sep 15 11:45:57 UTC 2009
On Tue, 15 Sep 2009, Charles Gruener wrote:
> Thanks for the help on configuring my boot options. I apologize that I
> forgot to mention I'm using the latest kernel from M. Young,
> 2.6.31-1.2.65.xendom0.fc12.x86_64. Here's what I get now that I've done all
> of what you've said:
>
> ...
>
> (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to
> Xen)
> (XEN) Freed 128kB init memory.
> (XEN) mm.c:1697:d0 Bad L1 flags 800000
> (XEN) traps.c:437:d0 Unhandled invalid opcode fault/trap [#6] on VCPU 0
> [ec=0000]
> (XEN) domain_crash_sync called from entry.S
> (XEN) Domain 0 (vcpu#0) crashed on cpu#0:
> (XEN) ----[ Xen-3.4.1 x86_64 debug=n Not tainted ]----
> (XEN) CPU: 0
> (XEN) RIP: e033:[<ffffffff81a017f1>]
> (XEN) RFLAGS: 0000000000000282 EM: 1 CONTEXT: pv guest
> (XEN) rax: 00000000ffffffea rbx: ffffffff8182b000 rcx: 00000000001b582b
> (XEN) rdx: 0000000000000000 rsi: 80000001b582b061 rdi: ffffffff8182b000
> (XEN) rbp: ffffffff8174ff98 rsp: ffffffff8174fef8 r8: 0000000000000000
> (XEN) r9: 0000000000000000 r10: 0000000000000000 r11: 0000000000000000
> (XEN) r12: ffffffff8174ffa8 r13: ffffffff8174ff40 r14: 0000000000000080
> (XEN) r15: 0000000000000000 cr0: 000000008005003b cr4: 00000000000026f0
> (XEN) cr3: 00000001b7208000 cr2: 0000000000000000
> (XEN) ds: 0000 es: 0000 fs: 0000 gs: 0000 ss: e02b cs: e033
> (XEN) Guest stack trace from rsp=ffffffff8174fef8:
> (XEN) 00000000001b582b 0000000000000000 ffffffff81a017f1 000000010000e030
> (XEN) 0000000000010082 ffffffff8174ff38 000000000000e02b ffffffff81a017ed
> (XEN) 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> (XEN) 000000000000182b 0000008000000000 ffffffff8100cc87 0000000000000000
> (XEN) 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> (XEN) ffffffff8174ffc8 ffffffff81021271 ffff8182b000007f 000000000000ffff
> (XEN) 0000000000000000 0000000000000000 ffffffff8174fff8 ffffffff81a01b49
> (XEN) 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> (XEN) 0000000000000000
> (XEN) Domain 0 crashed: rebooting machine in 5 seconds.
>
> Looking through that information, I don't see anything that really helps me
> out. Am I missing something? Anything else I should try BIOS level that
> could shed some light on the nature of the issue or is my best bet to try
> booting a debug version of Xen?
You can dig the vmlinux file out of the debuginfo rpm
http://koji.fedoraproject.org/koji/getfile?taskID=1668157&name=kernel-debuginfo-2.6.31-1.2.65.xendom0.fc12.x86_64.rpm
feed it into gdb and see what x/i ffffffff81a017f1 tells you about what
code it was trying to run when it crashed.
Michael Young
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