uvm_fault(0xfffffd806d163ac0, 0x0, 0, 1) -> e
fatal page fault in supervisor mode
trap type 6 code 0 rip ffffffff82aaf9a0 cs 8 rflags 10207 cr2 0 cpl 0 rsp ffff80003c4dcb80
gsbase 0xffff800029a9bff0  kgsbase 0x0
panic: trap type 6, code=0, pc=ffffffff82aaf9a0
Starting stack trace...
panic(ffffffff83323039) at panic+0x1d0 sys/kern/subr_prf.c:229
kerntrap(ffff80003c4dcad0) at kerntrap+0x29b sys/arch/amd64/amd64/trap.c:327
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
dt_ioctl_record_stop(ffff800001550000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:579
dtclose(11e5f,81,2000,ffff80002a3454c8) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,81,2000,ffff80002a3454c8) at dtclose+0x105 sys/dev/dt/dt_dev.c:232
spec_close(ffff80003c4dcc80) at spec_close+0x45f sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd80702a8d98,81,fffffd807f7d2270,ffff80002a3454c8) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156
vn_closefile(fffffd806fb4fc00,ffff80002a3454c8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd806fb4fc00,ffff80002a3454c8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd806fb4fc00,ffff80002a3454c8) at fdrop+0x126 sys/kern/kern_descrip.c:1265
closef(fffffd806fb4fc00,ffff80002a3454c8) at closef+0x192 sys/kern/kern_descrip.c:1249
fdfree(ffff80002a3454c8) at fdfree+0x116 sys/kern/kern_descrip.c:1181
exit1(ffff80002a3454c8,b,0,1) at exit1+0x58f sys/kern/kern_exit.c:214
sys_exit(ffff80002a3454c8,ffff80003c4dcff0,ffff80003c4dcf40) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c4dcff0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c4dcff0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x70c2bd851930, count: 242
End of stack trace.
WARNING: SPL NOT LOWERED ON SYSCALL 91 -35648264 EXIT 0 4
Stopped at      savectx+0xae:   movl    $0,%gs:0x680
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*145884  43206      0         0x2          0    1  syz-executor
 201806   3188      0     0x14000 0x40000200    0  softclock
savectx() at savectx+0xae
end of kernel
end trace frame: 0x791afde00ce0, count: 14
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