Re: [Xen-devel] [BUG] xen-mceinj tool testing cause dom0 crash

["Hao, Xudong" <xudong.hao@xxxxxxxxx>]

> -----Original Message-----
> From: Xen-devel [mailto:xen-devel-bounces@xxxxxxxxxxxxx] On Behalf Of Jan
> Beulich
> Sent: Tuesday, May 23, 2017 12:06 AM
> To: Hao, Xudong <xudong.hao@xxxxxxxxx>
> Cc: Lars Kurth <lars.kurth@xxxxxxxxxx>; Julien Grall <julien.grall@xxxxxxx>;
> xen-devel@xxxxxxxxxxxxx; George Dunlap <George.Dunlap@xxxxxxxxxx>; Zhang,
> Haozhong <haozhong.zhang@xxxxxxxxx>
> Subject: Re: [Xen-devel] [BUG] xen-mceinj tool testing cause dom0 crash
> 
> >>> On 22.05.17 at 10:39, <xudong.hao@xxxxxxxxx> wrote:
> > (XEN) Hardware Dom0 crashed: rebooting machine in 5 seconds.
> 
> Not this - Xen is unavoidably going to go down in such a case, yet your log 
> has
> no hint at all what kind of problem Dom0 experienced (e.g. whether one of the
> injected #MC-s caused this).
> 

Jan, 
The first mail attached the complete log from Xen booting, hope there is some 
hint from the full log.

> > (XEN) ----[ Xen-4.9-rc  x86_64  debug=y   Tainted: MCE  ]----
> > (XEN) CPU:    0
> > (XEN) RIP:    e008:[<0000000065eb1e13>] 0000000065eb1e13
> > ...
> > (XEN) Pagetable walk from 00000000682ab009:
> > (XEN)  L4[0x000] = 000000102c961063 ffffffffffffffff
> > (XEN)  L3[0x001] = 000000005f812063 ffffffffffffffff
> > (XEN)  L2[0x141] = 0000000000000000 ffffffffffffffff
> 
> Here you're apparently hitting a firmware bug: While RIP points into runtime
> services memory, CR2 doesn't:
> 
> (XEN)  0000065eb8000-00000682acfff type=0 attr=000000000000000f
> 
> You may try working around this via one of "reboot=acpi" or "efi=no-rs" on the
> hypervisor command line.
> 

Will try them.


Thanks,
-Xudong


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