My company has been developing a DriverKit Extension for our ThunderBolt attached devices. The dext is part of a set of components developed to replace a complex kext. Our testing has gone well on Intel based machines, but I seem to be able to cause kernel panics on my M1 Mac Mini when running some tests from an application that sends commands to the dext. The crashes aren't immediate; they happen apparently when the device wakes from sleeping. If I don't enable some particular capabilities on the devices the code works fine. Unfortunately they are LLC crashes and I have no way to debug them. Has anyone dealt with something like this?
panic(cpu 6 caller 0xfffffe001f038b94): "LLC Bus error from cpu2: FAR=0x600102068 LLC_ERR_STS/ADR/INF=0x11000ffc00000080/0x4300040600102068/0x5 addr=0x600102068 cmd=0x18(acc_cifl2c_cmd_rd_ld)" @AppleFireStormErrorHandler.cpp:424
Debugger message: panic
Memory ID: 0x6
OS release type: User
OS version: 21E258
Kernel version: Darwin Kernel Version 21.4.0: Fri Mar 18 00:47:26 PDT 2022; root:xnu-8020.101.4~15/RELEASE_ARM64_T8101
Fileset Kernelcache UUID: E642C8E63C1D004A6B6639342D386514
Kernel UUID: 79A2DE0A-5FBB-32B8-B226-9D5D3F5C25A4
iBoot version: iBoot-7459.101.3
secure boot?: YES
Paniclog version: 13
KernelCache slide: 0x0000000016758000
KernelCache base: 0xfffffe001d75c000
Kernel slide: 0x0000000016ef8000
Kernel text base: 0xfffffe001defc000
Kernel text exec slide: 0x0000000016fe0000
Kernel text exec base: 0xfffffe001dfe4000
