uvm_fault(0xffffffff8355a950, 0xffff80001a42432a, 0, 2) -> d
kernel: page fault trap, code=2
Stopped at      memset+0x49:    repe stosb      %es:(%rdi)
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
 156574  60635      0           0  0x4000000    1  syz-executor
*272566   4516     73   0x1100010          0    0K syslogd
memset() at memset+0x49
ffs_write(ffff80002a06a8d0) at ffs_write+0xbab sys/ufs/ffs/ffs_vnops.c:401
VOP_WRITE(fffffd806e2938c0,ffff80002a06aaf0,3,fffffd807f7d3af8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245
vn_write(fffffd806f8a51c8,ffff80002a06aaf0,0) at vn_write+0x1d1 sys/kern/vfs_vnops.c:408
dofilewritev(ffff8000ffffdbe8,e,ffff80002a06aaf0,0,ffff80002a06abb0) at dofilewritev+0x23c sys/kern/sys_generic.c:380
sys_writev(ffff8000ffffdbe8,ffff80002a06ac60,ffff80002a06abb0) at sys_writev+0xd8 sys/kern/sys_generic.c:327
syscall(ffff80002a06ac60) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a06ac60) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7760c072b600, count: 7
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