[Xen-bugs] [Bug 1243] New: dom0 hangs with io errors printed while booting hvm guest

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1243

           Summary: dom0 hangs with io errors printed while booting hvm
                    guest
           Product: Xen
           Version: unstable
          Platform: x86-64
        OS/Version: All
            Status: NEW
          Severity: blocker
          Priority: P1
         Component: Hypervisor
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: haicheng.li@xxxxxxxxx


Environment:
------------
Service OS (ia32/ia32e/IA64): ia32e
Guest OS (ia32/ia32e/IA64): ia32e
Change Set: 17565


Bug detailed description:
--------------------------
dom0 hangs with lots of ata errors printed to serial port while guest booting
up. 

ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata1.00: (BMDMA stat 0x24)
ata1.00: tag 0 cmd 0xca Emask 0x4 stat 0x40 err 0x0 (timeout)
ata1.00: qc timeout (cmd 0xec)
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata1.00: revalidation failed (errno=-5)
ata1: failed to recover some devices, retrying in 5 secs
ATA: abnormal status 0xD8 on port 0x18C7
ATA: abnormal status 0xD8 on port 0x18C7
ATA: abnormal status 0xD8 on port 0x18C7
ata1.00: qc timeout (cmd 0xec)
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata1.00: revalidation failed (errno=-5)
ata1: failed to recover some devices, retrying in 5 secs
ATA: abnormal status 0xD8 on port 0x18C7
ATA: abnormal status 0xD8 on port 0x18C7
ata1.00: qc timeout (cmd 0xec)
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata1.00: revalidation failed (errno=-5)
ata1.00: disabled
end_request: I/O error, dev sda, sector 69103
end_request: I/O error, dev sda, sector 54829908
Buffer I/O error on device sda5, logical block 0
lost page write due to I/O error on sda5
Buffer I/O error on device sda5, logical block 1
lost page write due to I/O error on sda5
end_request: I/O error, dev sda, sector 68985684
Buffer I/O error on device sda5, logical block 1769472
lost page write due to I/O error on sda5
end_request: I/O error, dev sda, sector 68985756


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