uvm_fault(0xffffffff83a77d60, 0xffff800029ef6000, 0, 2) -> e
kernel: page fault trap, code=2
Stopped at      kcov_remote_enter+0x122:        movq    $0,0(%rcx)
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*314169  31916      0      0x1000  0x4080000    0  syz-executor
kcov_remote_enter(0,ffff8000ffff9f98) at kcov_remote_enter+0x122 sys/dev/kcov.c:670
timeout_run(ffffffff83892ae0,ffff80002f0c1570) at timeout_run+0xdf sys/kern/kern_timeout.c:696
softclock_process_tick_timeout(ffff80002f0c1570,0) at softclock_process_tick_timeout+0x230 sys/kern/kern_timeout.c:756
softclock(0) at softclock+0x152 sys/kern/kern_timeout.c:788
softintr_dispatch(0) at softintr_dispatch+0xf9 sys/kern/kern_softintr.c:87
dosoftint(0) at dosoftint+0x48 sys/arch/amd64/amd64/intr.c:862
Xsoftclock() at Xsoftclock+0x27
vinvalbuf(fffffd8065a12d80,2,fffffd8007ffd680,ffff80003c8f87e8,0,ffffffffffffffff) at vinvalbuf+0x67f sys/kern/vfs_subr.c:2020
ffs_truncate(fffffd806cf63e00,0,4,fffffd8007ffd680) at ffs_truncate+0xf41 sys/ufs/ffs/ffs_inode.c:-1
ffs_write(ffff80002a7d14d0) at ffs_write+0xb9a sys/ufs/ffs/ffs_vnops.c:401
VOP_WRITE(fffffd8065a12d80,ffff80002a7d1688,7,fffffd8007ffd680) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
vn_write(fffffd806cfc53d8,ffff80002a7d1688,0) at vn_write+0x1c2 sys/kern/vfs_vnops.c:408
dofilewritev(ffff80003c8f87e8,3,ffff80002a7d1688,0,ffff80002a7d1730) at dofilewritev+0x2bd sys/kern/sys_generic.c:384
sys_write(ffff80003c8f87e8,ffff80002a7d17e0,ffff80002a7d1730) at sys_write+0xa2 sys/kern/sys_generic.c:300
end trace frame: 0xffff80002a7d17d0, count: 0
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