[Xen-API] XCP1.1 Host Crashing Randomly

[Rushikesh Jadhav <2rushikeshj@xxxxxxxxx>]

Dear all,

I have been facing an issue where XCP 1.1 host crashes randomly. It reboots itself irrespective of load. Day or night.

crash.log in /var/crash has multiple memory related messages

mm.c:741:d85 Non-privileged (85) attempt to map I/O space 00000000
grant_table.c:1408:d0 dest domain 109 dying
p2m_pod_cache_get: Breaking up superpage.
traps.c:2282:d2 Domain attempted WRMSR 000000000000008b from 00000013:00000000 to 00000000:00000000.

there is an interesting (to me) stack trace

    Call Trace:
      [ffff828c8010e310] dump_domains+0x4d0
       ffff828c8010eeb7  kexec_crash+0x57
       ffff828c80127b36  panic+0x136
       ffff828c8011b7da  __print_symbol+0x8a
       ffff828c8019b4ab  vmx_asm_vmexit_handler+0x6b
       ffff828c80100000  __per_cpu_shift+0x800ffff4
       ffff828c8015eb75  show_stack+0x155
       ffff828c8015eeba  fatal_trap+0x6a
       ffff828c801567a1  nmi_watchdog_tick+0x131
       ffff828c8015f37f  do_nmi+0xbf
       ffff828c801d6877  handle_ist_exception+0x52
       ffff828c8011ab02  _spin_lock+0x12

Can anyone spot any issue with these ?  or any start point to look ?

Thank you for your help as this random crash is creating lot of trouble.

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