[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] GPLPV Drivers 0.9.11-pre4 hang during boot - WindowsXP Pro SP2
Hi James, I meet this problem before but not in the same scenario.I use WinPv driver WDF version and attach a lot of vbd and vif device, such as 4 disks and 8 NICs. After WinPv driver install correctly, reboot the vm. Vm cannot reboot correctly every times. And the debug log is very similar as Sandro provided. I change the backend bit width detect code as follow. In my test box, WinPv driver works ok till now. Please have a try if you are interested in it. +XenVbd_TestBitWidth(PXENVBD_DEVICE_DATA DeviceData, PXENVBD_TARGET_DATA TargetData) +{ + blkif_request_t *req; + ULONG i;+ int notify; + + KdPrint((__DRIVER_NAME " --> XenVbd_TestBitWidth\n")); + req = RING_GET_REQUEST(&TargetData->Ring, TargetData->Ring.req_prod_pvt); + req->id = 0; + KdPrint((__DRIVER_NAME " req id : %d\n",req->id)); + req->operation = 0xff; + req->nr_segments = 0; + for (i = 0; i < req->nr_segments; i++) + { + req->seg[i].gref = 0xffffffff; + req->seg[i].first_sect = 0xff; + req->seg[i].last_sect = 0xff; + } + TargetData->Ring.req_prod_pvt++; + + RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&TargetData->Ring, notify); + KdPrint((__DRIVER_NAME " 1st notify: %d\n", notify)); + if (notify) + DeviceData->XenDeviceData->XenInterface.EvtChn_Notify( + DeviceData->XenDeviceData->XenInterface.InterfaceHeader.Context, + TargetData->EventChannel); + KeMemoryBarrier();+ + req = RING_GET_REQUEST(&TargetData->Ring, TargetData->Ring.req_prod_pvt); + req->id = 1; + KdPrint((__DRIVER_NAME " req id : %d\n",req->id)); + req->operation = 0xff; + req->nr_segments = 0; + for (i = 0; i < req->nr_segments; i++) + { + req->seg[i].gref = 0xffffffff; + req->seg[i].first_sect = 0xff; + req->seg[i].last_sect = 0xff; + } + TargetData->Ring.req_prod_pvt++; + + RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&TargetData->Ring, notify); + KdPrint((__DRIVER_NAME " 2nd notify: %d\n", notify)); + if (notify) + DeviceData->XenDeviceData->XenInterface.EvtChn_Notify( + DeviceData->XenDeviceData->XenInterface.InterfaceHeader.Context, + TargetData->EventChannel); + KeMemoryBarrier(); + KdPrint((__DRIVER_NAME " <-- XenVbd_TestBitWidth\n")); + return; +} _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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