panic: uvm_fault_WuAnRwNiIrNe_lGoc: SPLke d: NaOTddr essL OnWoEtRED iOnN mSapY SCSAtaLLrti n73g 5st3a68c7k0 9tr12a ceEX..I.T 0 a Stopped at savectx+0xae: movl $0,%gs:0x680 TID PID UID PRFLAGS PFLAGS CPU COMMAND 475262 91615 0 0x8000000 0x4000000 1K syz-executor.5 *198976 91615 0 0x8000000 0x4000000 0 syz-executor.5 savectx() at savectx+0xae end of kernel end trace frame: 0x4d00b17adf0, count: 14 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs.