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Re: [Xen-devel] FATAL TRAP on __do_update_va_mapping when booting Xen 4.8



>>> On 15.12.16 at 17:33, <vincent.legout@xxxxxxxxx> wrote:
> We're getting a FATAL TRAP when booting Xen 4.8 on 2 different servers (Xeon
> L5640 and Xeon L5520). The same xen binary boots fine on a third server with a
> Xeon E5-2650 v2 CPU, and the 3 servers boot fine when Xen is built with -01
> instead of -02 (gcc 4.9.2-10 from Debian jessie).
> 
> I've attached the boot log, and I've uploaded the xen and xen.syms binary 
> here:
> 
>  http://legout.info/~vincent/xen 
> 
> Would anyone have any idea? I'll be happy to provide more information if 
> needed.

This

(XEN) Xen code around <ffff82d080185b2c> 
(mm.c#__do_update_va_mapping+0x3c/0x630):
(XEN)  00 00 00 00 00 00 00 00 <ff> ff 0f 84 54 02 00 00 48 89 34 24 48 8d 74 24

pretty clearly shows that Xen's .text has been corrupted. To
determine how/when that has happened I guess you're in the
best position to find out. In particular you forgot to mention
whether you have any local modifications on top of (I assume)
4.8-staging.

Jan


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