uvm_fault(0xffffffff829ecf68, 0xffff80001e0a0f36, 0, 2) -> d
kernel: page fault trap, code=0
Stopped at      memset+0x45:    repe stosb      %es:(%rdi)
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
memset() at memset+0x45
ffs_write(ffff80002e9230d0) at ffs_write+0x93c
VOP_WRITE(fffffd806fecd600,ffff80002e923168,23,fffffd807f7d77b8) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245
vn_rdwr(1,fffffd806fecd600,ffff80002e923258,40,0,1,9fd74310a32045d7,0,ffff8000216f0000,fffffd806fecd600) at vn_rdwr+0xe9 sys/kern/vfs_vnops.c:324
acct_process(ffff8000216f0000) at acct_process+0x62c sys/kern/kern_acct.c:243
exit1(ffff8000216f0000,0,0,1) at exit1+0x387 sys/kern/kern_exit.c:209
sys_exit(ffff8000216f0000,ffff80002e9233d0,ffff80002e923420) at sys_exit+0x16 sys/kern/kern_exit.c:89
syscall(ffff80002e9234a0) at syscall+0x446 sys/arch/amd64/amd64/trap.c:599
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffd5360, count: 6
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