[Xen-devel] Re: win-pv assertion failed while migrating

[alice wan <wanjia19870902@xxxxxxxxx>]

new problem appeared in the fix and only after migrate once, it came out.

 

XenNet --> XenNet_SuspendResume
XenNet     New state SR_STATE_RESUMING
XenNet <-- XenNet_SuspendResume
XenNet --> XenNet_ResumeWorkItem
XenPCI --> EvtChn_PdoEventChannelDpc
 
*** Assertion failed: !xi->resume_work_item
***   Source File: e:\win-pvdrivers\win-pvdrivers.hg\xennet\xennet.c, line 248
 
XenPCI <-- EvtChn_PdoEventChannelDpc
XenVbd --> DriverEntry
XenVbd     IRQL = 31
XenVbd     DriverObject = 00000000, RegistryPath = 00000000
XenVbd --> XenVbd_HwScsiFindAdapter
XenVbd     IRQL = 31
XenVbd     xvdd = 8196B300
XenVbd     BusInterruptLevel = 28
XenVbd     BusInterruptVector = 01c
XenVbd     NumberOfAccessRanges = 1
XenVbd     RangeStart = 1f9eb000, RangeLength = 00001000
XenVbd     XEN_INIT_TYPE_VECTORS
XenVbd     XEN_INIT_TYPE_DEVICE_STATE - 820E93CC
XenVbd     XEN_INIT_TYPE_RING - ring-ref = 815FC000
XenVbd     XEN_INIT_TYPE_EVENT_CHANNEL - event-channel = 7
XenVbd     XEN_INIT_TYPE_READ_STRING - device-type = disk
XenVbd     device-type = Disk
XenVbd     XEN_INIT_TYPE_READ_STRING - mode = w
XenVbd     mode = w
XenVbd     XEN_INIT_TYPE_READ_STRING - sectors = 104857600
XenVbd     XEN_INIT_TYPE_READ_STRING - sector-size = 512
XenVbd     XEN_INIT_TYPE_GRANT_ENTRIES - entries = 11
XenVbd     qemu_hide_flags_value = 3
XenVbd     aligned_buffer_data = 8196D274
XenVbd     aligned_buffer = 8196E000
XenVbd     ConfigInfo->MaximumTransferLength = 4096
XenVbd     ConfigInfo->NumberOfPhysicalBreaks = 0
XenVbd     ConfigInfo->CachesData was initialised to 0
XenVbd     Dma64BitAddresses not supported
XenVbd <-- XenVbd_HwScsiFindAdapter
XenVbd --> XenVbd_HwScsiInitialize
XenVbd     IRQL = 31
XenVbd     dump_mode = 1
XenVbd <-- XenVbd_HwScsiInitialize
XenVbd     Command = INQUIRY
XenVbd --> XenVbd_HwScsiResetBus
XenVbd     IRQL = 31
XenVbd <-- XenVbd_HwScsiResetBus
XenVbd     Command = SCSIOP_START_STOP_UNIT
XenVbd     Command = READ_CAPACITY
XenVbd <-- DriverEntry
XenVbd     max_dump_mode_blocks = 8
XenVbd     max_dump_mode_length = 4096
 
*** Assertion failed: srb != NULL
***   Source File: e:\win-pvdrivers\win-pvdrivers.hg\xenvbd\xenvbd_scsiport.c, line 988
 
XenNet --> XenNet_Shutdown
XenNet <-- XenNet_Shutdown
XenPCI     Bug check 0x0000007E (0x80000003, 0x80878113, 0xF88A566C, 0xF88A5368)

2011/2/15 alice wan <wanjia19870902@xxxxxxxxx>

I build from source. today, i'll use latest version to test, if there's any results, i'll let u know

2011/2/14 James Harper <james.harper@xxxxxxxxxxxxxxxx>

I've found a race in xennet that could cause the problems you are seeing
and have pushed a fix, but it's not well tested. From what you've said I
think you can build from source. If not, I should be able to upload some
binaries tomorrow. Please let me know how your testing goes.

James

> -----Original Message-----
> From: alice wan [mailto:wanjia19870902@xxxxxxxxx]

> Sent: Monday, 14 February 2011 18:01

> To: James Harper
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx

> Subject: Re: win-pv assertion failed while migrating
>
> serveral hundred times, not regular and vm blue screen of death
>
>
>
>
> 2011/2/14 James Harper <james.harper@xxxxxxxxxxxxxxxx>
>
>
>       >
>       > yes, windows 2003-32.
>       >
>       > my test is migrate vm between host A and host B
>       > continually(xen4.0.0.0+2.6.31.13)
>       >
>       > Almost after automatic migrate script ran for one day, this
problem
>       appeared
>       >
>       > maybe i can also do some test on xen4.0.1+2.6.32.x to check
whether it
>       matters
>       > kernel or pv driver.
>
>
>       So you are saying that it doesn't happen immediately, only after
some
>       time? Do you know how many times?
>
>       Maybe I'm leaking a resource somewhere every time migrate
happens and
>       eventually it runs out...
>
>       James
>
>

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