uvm_fault(0xfffffd800b0275b8, 0x0, 0, 1) -> e
fatal page fault in supervisor mode
trap type 6 code 0 rip ffffffff82342d88 cs 8 rflags 10207 cr2 0 cpl 0 rsp ffff80003c46da60
gsbase 0xffffffff83785ff0  kgsbase 0x0
panic: trap type 6, code=0, pc=ffffffff82342d88
Starting stack trace...
panic(ffffffff833a2119) at panic+0x1d0 sys/kern/subr_prf.c:229
kerntrap(ffff80003c46d9b0) at kerntrap+0x30b
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
dt_ioctl_record_stop(ffff80000147d000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586
dtclose(11e5f,1,2000,ffff80003c444fb8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,1,2000,ffff80003c444fb8) at dtclose+0x109 sys/dev/dt/dt_dev.c:232
spec_close(ffff80003c46db60) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd805e0535f0,1,fffffd80097fb680,ffff80003c444fb8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd805b674af8,ffff80003c444fb8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd805b674af8,ffff80003c444fb8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd805b674af8,ffff80003c444fb8) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd805b674af8,ffff80003c444fb8) at closef+0x192 sys/kern/kern_descrip.c:1264
fdfree(ffff80003c444fb8) at fdfree+0x116 sys/kern/kern_descrip.c:1195
exit1(ffff80003c444fb8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff80003c444fb8,ffff80003c46ded0,ffff80003c46de20) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c46ded0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c46ded0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7a3f5b955540, count: 242
End of stack trace.

dump to devWA RN4I,N1G :n oStP Lp NoOTs sLiblOWe
ERED ON SYSCALL 172 3 EXIT 0 a
Stopped at      savectx+0xae:   movl    $0,%gs:0x688
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*214176   8174      0           0  0x4000000    1  syz-executor
savectx() at savectx+0xae
end of kernel
end trace frame: 0x7cd9c8dae60, count: 14
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