Hi, on the latest stable 5.16.8 (df659ebe) the Mediatek WLAN driver crashes on my machine in a DMA function. Please excuse me for the crappy photos. The first one has been captured out of a video. Therefore it's partially interleaved with the predecessor frame. https://bues.ch/misc/mt7921/mt7921_oops1.jpg https://bues.ch/misc/mt7921/mt7921_oops2.jpg Most of the time the crash happens right during system boot. The stable kernel 5.15.y does not crash. (However, I frequently get connection interruptions. But I'm not sure whether that's related to the driver.) 03:00.0 Network controller: MEDIATEK Corp. MT7921 802.11ax PCI Express Wireless Network Adapter 03:00.0 0280: 14c3:7961 Subsystem: 17aa:e0bc Physical Slot: 0 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 94 IOMMU group: 11 Region 0: Memory at 670200000 (64-bit, prefetchable) [size=1M] Region 2: Memory at 670300000 (64-bit, prefetchable) [size=16K] Region 4: Memory at 670304000 (64-bit, prefetchable) [size=4K] Capabilities: <access denied> Kernel driver in use: mt7921e Kernel modules: mt7921e -- Michael Büsch https://bues.ch/
