Re: [Xen-devel] Crash in xen 4.7 adding nic during domu startup

[Peter Kay <syllopsium@xxxxxxxxxxxxxxxx>]

A clue on doing this would be useful, I can't debug what is now release code all day.

4.5 is absolutely fine. 4.6.3 (tried last night) does not fail either but refuses to start my domU that has two nics assigned to it in a vif line. I'm presuming other people are successfully running multiple NICs on one VM (ioemu, e1000)

PK

On Tuesday, 28 June 2016, Jan Beulich <JBeulich@xxxxxxxx> wrote:

>>> On 28.06.16 at 00:28, <syllopsium@xxxxxxxxxxxxxxxx> wrote:
> (XEN) [2016-06-27 22:11:41.712] ----[ Xen-4.7.0  x86_64  debug=n  Not tainted ]----
> (XEN) [2016-06-27 22:11:41.712] CPU:    0
> (XEN) [2016-06-27 22:11:41.712] RIP:    e008:[<ffff82d080166450>] domain_relinquish_resources+0x10/0x2f0
> (XEN) [2016-06-27 22:11:41.712] RFLAGS: 0000000000010296   CONTEXT: hypervisor (d0v0)
> (XEN) [2016-06-27 22:11:41.712] rax: 0000000000000000   rbx: ffff83020ac4f000   rcx: ffff82d0802346bc
> (XEN) [2016-06-27 22:11:41.712] rdx: ffff8300bf8d7fff   rsi: 0000000000000000   rdi: ffff83020afde050
> (XEN) [2016-06-27 22:11:41.712] rbp: ffff8300bf8d7e48   rsp: ffff8300bf8d7d78   r8:  0000000000000001
> (XEN) [2016-06-27 22:11:41.712] r9:  0000000000000000   r10: 0000000000000003   r11: ffff83023d94b1d8
> (XEN) [2016-06-27 22:11:41.712] r12: 00007ffe21eb9530   r13: 0000000000000000   r14: ffff83020ac4f000
> (XEN) [2016-06-27 22:11:41.712] r15: 00007ffe21eb9530   cr0: 0000000080050033   cr4: 00000000000026e0
> (XEN) [2016-06-27 22:11:41.712] cr3: 0000000216737000   cr2:  0000000000000000
> (XEN) [2016-06-27 22:11:41.712] ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: e010   cs: e008
> (XEN) [2016-06-27 22:11:41.712] Xen code around <ffff82d080166450> (domain_relinquish_resources+0x10/0x2f0):
> (XEN) [2016-06-27 22:11:41.712]  18 48 8b bf e8 01 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Something very clearly corrupted your hypervisor code, and that's
what you'll need to track down.

Jan

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