On 6/19/07, Avi Kivity <[EMAIL PROTECTED]> wrote: [...] > The virtual machine has spontaneously rebooted, then failed because > Windows has (legitimately) overwritten the real-mode task state segment > located at the end of memory. The emulation failure is for an 'out' > instruction, which will trap if the tss is not set up correctly. > > The emulation failure can be fixed by re-initializing the tss, or, even > better, moving it beyond RAM, or by fully emulating real mode, but this > doesn't say anything about the cause of the reboot. Is there anything > in the Windows event log (accessible using eventvwr.exe?) [...]
I dug through the event log a bit and did find something relevant. All timestamps are from Jun 17 2007 PDT. 03:08:30 - GUEST - Windows Update Agent reports security update installed (and I think the update agent might've been set up to automatically reboot; I definitely wasn't awake at 3am) 03:13:25 - GUEST - winlogon.exe initiated a restart 03:13:45 - HOST - emulation failed message 03:52:03 - GUEST - ACPI BIOS read error reported 03:52:03 - GUEST - ACPI BIOS write error reported the last log message appears at 04:14:52 (strange since I thought it would've died at the time "emulation failed" showed up in the host's log), then nothing until 08:35:46 when I manually started up the guest VM again. I thought I did have the Windows ACPI workaround in place during all of this, but it is possible that this was not the case. Here are the details from the Windows event viewer of the GUEST log messages above: Event Type: Information Event Source: Windows Update Agent Event Category: Installation Event ID: 19 Date: 6/17/2007 Time: 3:08:30 AM User: N/A Computer: BUDDY Description: Installation Successful: Windows successfully installed the following update: Security Update for Windows XP (KB828741) For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 57 69 6e 33 32 48 52 65 Win32HRe 0008: 73 75 6c 74 3d 30 78 30 sult=0x0 0010: 30 30 30 30 30 30 30 20 0000000 0018: 55 70 64 61 74 65 49 44 UpdateID 0020: 3d 7b 41 42 44 31 43 33 ={ABD1C3 0028: 45 46 2d 39 38 37 44 2d EF-987D- 0030: 34 41 30 34 2d 38 33 44 4A04-83D 0038: 42 2d 43 45 43 32 32 34 B-CEC224 0040: 39 35 44 33 42 37 7d 20 95D3B7} 0048: 52 65 76 69 73 69 6f 6e Revision 0050: 4e 75 6d 62 65 72 3d 31 Number=1 0058: 30 32 20 00 02 . Event Type: Information Event Source: USER32 Event Category: None Event ID: 1074 Date: 6/17/2007 Time: 3:13:25 AM User: NT AUTHORITY\SYSTEM Computer: BUDDY Description: The process winlogon.exe has initiated the restart of BUDDY for the following reason: No title for this reason could be found Minor Reason: 0x2 Shutdown Type: reboot Comment: For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 02 00 02 80 ... Event Type: Error Event Source: ACPI Event Category: None Event ID: 4 Date: 6/17/2007 Time: 3:52:03 AM User: N/A Computer: BUDDY Description: AMLI: ACPI BIOS is attempting to read from an illegal IO port address (0x71), which lies in the 0x70 - 0x71 protected address range. This could lead to system instability. Please contact your system vendor for technical assistance. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 00 00 00 00 04 00 52 00 ......R. 0008: 00 00 00 00 04 00 05 c0 .......À 0010: 00 00 00 00 00 00 00 00 ........ 0018: 00 00 00 00 00 00 00 00 ........ 0020: 00 00 00 00 00 00 00 00 ........ Event Type: Error Event Source: ACPI Event Category: None Event ID: 5 Date: 6/17/2007 Time: 3:52:03 AM User: N/A Computer: BUDDY Description: AMLI: ACPI BIOS is attempting to write to an illegal IO port address (0x70), which lies in the 0x70 - 0x71 protected address range. This could lead to system instability. Please contact your system vendor for technical assistance. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 00 00 00 00 04 00 52 00 ......R. 0008: 00 00 00 00 05 00 05 c0 .......À 0010: 00 00 00 00 00 00 00 00 ........ 0018: 00 00 00 00 00 00 00 00 ........ 0020: 00 00 00 00 00 00 00 00 ........ Hope this helps! KVM sure helps me! -- Adam Monsen ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ kvm-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/kvm-devel
