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. _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users