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Zebediah Figura authored
ntoskrnl/tests: Also test that IoInvalidateDeviceRelations() during device enumeration doesn't deadlock. wineusb enumerates new devices and completes IRPs from the same thread (as if it were an IRQ thread). On the other hand, the Hauppauge cx231xx USB driver performs I/O from within IRP_MN_START_DEVICE. If the wineusb "IRQ" thread is currently trying to report a new device, it won't be able to report I/O completion, resulting in a deadlock. Although wineusb could be modified to use more threads, these tests show that calling IoInvalidateDeviceRelations() should not block in this situation.
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