kernel: page fault trap, code=10
Stopped at      0    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
 101587  25547      0           0          0    1  syz-executor
0(0,0,0,ffffffff837ffda8,0,0) at 0
timeout_run(ffffffff837ffda8,fffffd8072b10e80) at timeout_run+0x13d sys/kern/kern_timeout.c:707
softclock_process_kclock_timeout(fffffd8072b10e80,0) at softclock_process_kclock_timeout+0x2a9 sys/kern/kern_timeout.c:738
softclock(0) at softclock+0x199 sys/kern/kern_timeout.c:791
softintr_dispatch(0) at softintr_dispatch+0x140 sys/kern/kern_softintr.c:84
dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847
Xsoftclock() at Xsoftclock+0x27
uvn_flush(fffffd807a856158,0,0,19) at uvn_flush+0xbc9 sys/uvm/uvm_vnode.c:844
uvn_detach(fffffd807a856158) at uvn_detach+0xcf sys/uvm/uvm_vnode.c:361
uvm_unmap_detach(ffff80002a35ddd0,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364
uvm_map_teardown(fffffd8064ee4208) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525
exit1(ffff800039ffaf80,0,9,1) at exit1+0x723 sys/kern/kern_exit.c:260
sigexit(ffff800039ffaf80,9) at sigexit+0x116 sys/kern/kern_sig.c:1836
postsig(ffff800039ffaf80,9,ffff80002a35dff8) at postsig+0x67b sys/kern/kern_sig.c:1763
userret(ffff800039ffaf80) at userret+0x24e sys/kern/kern_sig.c:2207
end trace frame: 0xffff80002a35e0e0, count: 0
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.
ddb{0}> dbcpu 1
No such command
ddb{0}> trace
0(0,0,0,ffffffff837ffda8,0,0) at 0
timeout_run(ffffffff837ffda8,fffffd8072b10e80) at timeout_run+0x13d sys/kern/kern_timeout.c:707
softclock_process_kclock_timeout(fffffd8072b10e80,0) at softclock_process_kclock_timeout+0x2a9 sys/kern/kern_timeout.c:738
softclock(0) at softclock+0x199 sys/kern/kern_timeout.c:791
softintr_dispatch(0) at softintr_dispatch+0x140 sys/kern/kern_softintr.c:84
dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847
Xsoftclock() at Xsoftclock+0x27
uvn_flush(fffffd807a856158,0,0,19) at uvn_flush+0xbc9 sys/uvm/uvm_vnode.c:844
uvn_detach(fffffd807a856158) at uvn_detach+0xcf sys/uvm/uvm_vnode.c:361
uvm_unmap_detach(ffff80002a35ddd0,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364
uvm_map_teardown(fffffd8064ee4208) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525
exit1(ffff800039ffaf80,0,9,1) at exit1+0x723 sys/kern/kern_exit.c:260
sigexit(ffff800039ffaf80,9) at sigexit+0x116 sys/kern/kern_sig.c:1836
postsig(ffff800039ffaf80,9,ffff80002a35dff8) at postsig+0x67b sys/kern/kern_sig.c:1763
userret(ffff800039ffaf80) at userret+0x24e sys/kern/kern_sig.c:2207
intr_user_exit() at intr_user_exit+0x3c
end of kernel
end trace frame: 0x78fc48028760, count: -15