Hi,
My Virtual Bus driver under XP constantly adds and removes USB devices. Specifically Isochronous USB device removal leads to this very random crash. Its been a while that we havnt been able to make progress on. Any insights would be very helpful. What’s wrong with the WDFQueue ?
f6895c0c 8054b583 000000c2 00000007 00000cd4 nt!KeBugCheckEx+0x1b (FPO: [Non-Fpo])
f6895c5c f8013551 82e569f8 00000000 82eefab8 nt!ExFreePoolWithTag+0x2a3 (FPO: [Non-Fpo])
f6895c74 f8012478 82eefab8 f6895c90 f8012b46 Wdf01000!FxPoolFree+0xc5 (FPO: [Non-Fpo])
f6895c80 f8012b46 82eefab8 82eefab8 f6895cb0 Wdf01000!FxObject::operator delete+0x13 (FPO: [Non-Fpo])
f6895c90 f7fd4f8e 00000001 f801381b 82ec4d5c Wdf01000!FxSpinLock::`scalar deleting destructor’+0x19 (FPO: [Non-Fpo])
f6895c98 f801381b 82ec4d5c 00000000 00000000 Wdf01000!FxObject::SelfDestruct+0xb (FPO: [0,0,0])
f6895cb0 f7fd4fd6 82ec4cd0 82eefab8 f6895cec Wdf01000!FxObject::ProcessDestroy+0xa6 (FPO: [Non-Fpo])
f6895cc0 f8001f3d 75657551 0000103d f802abe8 Wdf01000!FxObject::Release+0x42 (FPO: [Non-Fpo])
f6895cec f80036c4 f6895d10 00000000 82ec4cd0 Wdf01000!FxIoQueue::ProcessCancelledRequests+0x127 (FPO: [Non-Fpo])
f6895d08 f8001ac8 82eefa00 00000000 82eefab8 Wdf01000!FxIoQueue::DispatchEvents+0xd6 (FPO: [Non-Fpo])
f6895d28 f800407c 82eefa00 832b1228 832b1228 Wdf01000!FxIoQueue::CancelForDriver+0xf9 (FPO: [Non-Fpo])
f6895d48 f7fff429 00000001 00000001 00000000 Wdf01000!FxIoQueue::QueuePurge+0x272 (FPO: [Non-Fpo])
f6895d60 f869b2ed 00000000 82ec4cd0 00000000 Wdf01000!imp_WdfIoQueuePurge+0x67 (FPO: [Non-Fpo])
f6895dec f869b65e 7cd4efe8 00000003 f86a43ec panobus!Bus_PdoCleanup+0x16d (FPO: [Non-Fpo]) (CONV: stdcall) [d:\bus.c @ 3519]
f6895e44 f869df3f 7cd4efe8 00000003 832aec60 panobus!Bus_UnPlugDevice+0x58 (FPO: [Non-Fpo]) (CONV: stdcall) [d:\bus.c @ 3761]
f6896b80 f8000072 7cd51398 7d084cc0 00000000 panobus!Bus_EvtIoDeviceControl+0x179f (FPO: [Non-Fpo]) (CONV: stdcall) [d:\bus.c @ 2159]
f6896ba4 f80013d0 7cd51398 7d084cc0 00000000 Wdf01000!FxIoQueueIoInternalDeviceControl::Invoke+0x30 (FPO: [Non-Fpo])
f6896bd4 f80039ac 7d084cc0 82f7b338 832aec60 Wdf01000!FxIoQueue::DispatchRequestToDriver+0x31d (FPO: [Non-Fpo])
f6896bf0 f8004a36 832aec00 00000000 833e3420 Wdf01000!FxIoQueue::DispatchEvents+0x3be (FPO: [Non-Fpo])
f6896c10 f8006824 82f7b338 82f7f3f8 83383030 Wdf01000!FxIoQueue::QueueRequest+0x1ec (FPO: [Non-Fpo])
f6896c34 f7ff5a3f 82de3b70 f6896c64 804ef19f Wdf01000!FxPkgIo::Dispatch+0x27d (FPO: [Non-Fpo])
f6896c40 804ef19f 832ae030 82de3b70 806e6410 Wdf01000!FxDevice::Dispatch+0x7f (FPO: [Non-Fpo])
f6896c50 8057f982 82de3c04 82f7f3f8 82de3b70 nt!IopfCallDriver+0x31 (FPO: [0,0,0])
f6896c64 805807f7 832ae030 82de3b70 82f7f3f8 nt!IopSynchronousServiceTail+0x70 (FPO: [Non-Fpo])
f6896d00 80579274 00000510 00000590 00000000 nt!IopXxxControlFile+0x5c5 (FPO: [Non-Fpo])
f6896d34 8054164c 00000510 00000590 00000000 nt!NtDeviceIoControlFile+0x2a (FPO: [Non-Fpo])
f6896d34 7c90e514 00000510 00000590 00000000 nt!KiFastCallEntry+0xfc (FPO: [0,0] TrapFrame @ f6896d64)
14cbf994 7c90d28a 7c8016c2 00000510 00000590 ntdll!KiFastSystemCallRet (FPO: [0,0,0])
14cbf998 7c8016c2 00000510 00000590 00000000 ntdll!ZwDeviceIoControlFile+0xc (FPO: [10,0,0])
14cbf9f8 004f23c0 00000510 002a4004 0b936128 kernel32!DeviceIoControl+0x78 (FPO: [Non-Fpo])
thanks
Pankaj