uvm_fault(0xffffffff83941a08, 0xffff800025de2600, 0, 2) -> d
kernel: page fault trap, code=2
Stopped at      memset+0x52:    repe stosq      %es:(%rdi)
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
memset() at memset+0x52
ffs_write(ffff80003c903290) at ffs_write+0xb9a sys/ufs/ffs/ffs_vnops.c:401
VOP_WRITE(fffffd80647fbe80,ffff80003c903328,23,fffffd8007ffd478) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
vn_rdwr(1,fffffd80647fbe80,ffff80003c903460,40,0,1,b3c6613eeb56c4e7,0,1008,80) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:330
acct_process(ffff80003c9a42c8) at acct_process+0x7a2 sys/kern/kern_acct.c:245
exit1(ffff80003c9a42c8,0,0,1) at exit1+0x5c4 sys/kern/kern_exit.c:228
sys_exit(ffff80003c9a42c8,ffff80003c903690,ffff80003c9035e0) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c903690) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c903690) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x6fc9aadb56c0, count: 6
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