b+&~SАu= Nm3჏tEgPU je-bYZ&ޣb+&~SАu= Nm3჏tEgPU je-bYZ&ޣ8PPedRt1;sb+&~SАu= Nm3჏tEgPU je-bYZ&ޣb+&~SАu= Nm3჏tEgPU je-bYZ&ޣb+&~SАu= Nm3჏tEgPU je-bYZ&ޣb+&~SАu= Nm3჏tEgPU je-bYZ&ޣb+&~SАu= Nm3჏tEgPU je-bYZ&ޣuvm_fault(0xffffffff82873ff8, 0xffffffff82672f10, 0, 2) -> e kernel: page fault trap, code=0 Stopped at m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff82873ff8, 0xffffffff82672f10, 0, 2) -> e m_copyback(ffff800021fdb2b0,bc,0,ffff800021fdb474,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021fdb2b0,bc,0,ffff800021fdb474,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 end trace frame: 0xffff800021fdb530, count: 0 ddb{0}> trace m_copyback(ffff800021fdb2b0,bc,0,ffff800021fdb474,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021fdb2b0,bc,0,ffff800021fdb474,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044a00,ffff800021fdb558,fffffd8079474c00) at pflog_mtap+0x446 sys/net/if_pflog.c:389 pflog_packet(ffff800021fdb658,0,ffff800000b75548,0,ffffffff82890df8,0) at pflog_packet+0x3a4 pf_test(2,1,ffff800000b80000,ffff800021fdb878) at pf_test+0xfc5 sys/net/pf.c:7226 ip_input_if(ffff800021fdb878,ffff800021fdb884,4,0,ffff800000b80000) at ip_input_if+0x578 sys/netinet/ip_input.c:316 ipv4_input(ffff800000b80000,fffffd8079474c00) at ipv4_input+0x48 sys/netinet/ip_input.c:215 tun_dev_write(5d01,ffff800021fdbb68,ffff80002310d000,2) at tun_dev_write+0x204 sys/net/if_tun.c:868 spec_write(ffff800021fdb9c0) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806ec755b8,ffff800021fdbb68,11,fffffd807f7bfa20) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd806ca86730,ffff800021fdbb68,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800021fd4c80,f0,ffff800021fdbb68,0,ffff800021fdbc50) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800021fd4c80,ffff800021fdbc00,ffff800021fdbc50) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800021fdbcd0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021fdbcd0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7164e0b31c0, count: -14 ddb{0}> show registers rdi 0 rsi 0x4441f acpi_pdirpa+0x30287 rbp 0xffff800021fdb290 rbx 0xffffffffffff9079 rdx 0x4441e acpi_pdirpa+0x30286 rcx 0xffffffff826aab40 mbstat_boot_boot_cpumem rax 0 r8 0x2 r9 0xffffffff81fd9938 pf_translate_a+0x1a8 r10 0x1 r11 0x2406563303078fe7 r12 0xfffffd80686ea600 r13 0x9c r14 0x20 r15 0xffff800021fdb490 rip 0xffffffff8106c6b9 m_copyback+0x119 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021fdb1d0 ss 0x10 m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8) ddb{0}> show proc PROC (syz-executor.1) pid=43958 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800021fd4028,0xffffffff8288b638 process=0xffff800021fbafc0 user=0xffff800021fd6000, vmspace=0xfffffd806683d300 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 38063 70270 56142 0 7 0 syz-executor.1 *38063 43958 56142 0 7 0x4000000 syz-executor.1 56142 512931 99818 0 3 0x82 nanosleep syz-executor.1 56213 519674 0 0 3 0x14280 nfsidl nfsio 22147 150028 0 0 3 0x14280 nfsidl nfsio 83592 259873 0 0 3 0x14280 nfsidl nfsio 99320 181876 0 0 3 0x14280 nfsidl nfsio 30831 215723 0 0 3 0x14280 nfsidl nfsio 59241 240686 0 0 3 0x14280 nfsidl nfsio 38995 514248 0 0 3 0x14280 nfsidl nfsio 22311 115852 0 0 3 0x14280 nfsidl nfsio 57392 17538 0 0 3 0x14280 nfsidl nfsio 72749 60070 0 0 3 0x14280 nfsidl nfsio 7451 374271 0 0 3 0x14280 nfsidl nfsio 58577 456069 0 0 3 0x14280 nfsidl nfsio 20117 423935 0 0 3 0x14280 nfsidl nfsio 42144 436849 0 0 3 0x14280 nfsidl nfsio 35482 265385 0 0 3 0x14280 nfsidl nfsio 37479 295274 0 0 3 0x14280 nfsidl nfsio 30470 301486 0 0 3 0x14280 nfsidl nfsio 36123 508580 0 0 3 0x14280 nfsidl nfsio 90473 268836 0 0 3 0x14280 nfsidl nfsio 36234 165402 0 0 3 0x14280 nfsidl nfsio 98348 340217 0 0 3 0x14200 bored sosplice 65629 156633 1 0 3 0x100083 ttyin getty 6383 466613 99818 0 2 0x2 syz-executor.0 99818 449841 93532 0 3 0x82 thrsleep syz-fuzzer 99818 350719 93532 0 3 0x4000082 nanosleep syz-fuzzer 99818 160215 93532 0 3 0x4000082 kqread syz-fuzzer 99818 37618 93532 0 3 0x4000082 thrsleep syz-fuzzer 99818 429604 93532 0 3 0x4000082 thrsleep syz-fuzzer 99818 60047 93532 0 3 0x4000082 nanosleep syz-fuzzer 99818 511642 93532 0 3 0x4000082 thrsleep syz-fuzzer 99818 351123 93532 0 3 0x4000082 thrsleep syz-fuzzer 93532 237435 80396 0 3 0x10008a pause ksh 80396 24867 91522 0 3 0x92 select sshd 91522 503402 1 0 3 0x80 select sshd 96593 60620 47902 74 3 0x100092 bpf pflogd 47902 336786 1 0 3 0x80 netio pflogd 69397 234415 10345 73 3 0x100090 kqread syslogd 10345 8539 1 0 3 0x100082 netio syslogd 21035 221521 1 77 3 0x100090 poll dhclient 70114 477146 1 0 3 0x80 poll dhclient 72067 122846 0 0 3 0x14200 bored smr 72813 506963 0 0 2 0x14200 zerothread 74337 254124 0 0 3 0x14200 aiodoned aiodoned 28155 258991 0 0 3 0x14200 syncer update 11574 283960 0 0 3 0x14200 cleaner cleaner 13501 37430 0 0 3 0x14200 reaper reaper 42588 365477 0 0 3 0x14200 pgdaemon pagedaemon 26047 122499 0 0 3 0x14200 bored crynlk 97916 372611 0 0 3 0x14200 bored crypto 41524 497654 0 0 3 0x40014200 acpi0 acpi0 28737 308699 0 0 3 0x40014200 idle1 30281 136014 0 0 3 0x14200 bored softnet 35644 172135 0 0 3 0x14200 bored systqmp 88214 276553 0 0 3 0x14200 bored systq 48085 112815 0 0 3 0x40014200 bored softclock 98752 487952 0 0 3 0x40014200 idle0 1 306524 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 38063 (syz-executor.1) thread 0xffff800021fd4c80 (43958) exclusive rwlock netlock r = 0 (0xffffffff82725910) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1164 #1 tun_dev_write+0x1f9 sys/net/if_tun.c:867 #2 spec_write+0xd4 sys/kern/spec_vnops.c:309 #3 VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 #4 vn_write+0x14e sys/kern/vfs_vnops.c:414 #5 dofilewritev+0x1ab sys/kern/sys_generic.c:365 #6 sys_write+0x83 sys/kern/sys_generic.c:285 #7 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #7 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 #8 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828778c0) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1164 #1 vn_write+0x42 sys/kern/vfs_vnops.c:399 #2 dofilewritev+0x1ab sys/kern/sys_generic.c:365 #3 sys_write+0x83 sys/kern/sys_generic.c:285 #4 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #4 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 #5 Xsyscall+0x128 Process 6383 (syz-executor.0) thread 0xffff800020de7150 (466613) exclusive rrwlock inode r = 0 (0xfffffd806e2981b8) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1164 #1 rw_enter+0x446 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x6c sys/kern/vfs_vnops.c:575 #5 vget+0x1c6 sys/kern/vfs_subr.c:671 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x6b sys/ufs/ffs/ffs_vfsops.c:1321 #8 ufs_lookup+0x151d sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 #10 vfs_lookup+0x708 sys/kern/vfs_lookup.c:568 #11 namei+0x5f7 sys/kern/vfs_lookup.c:249 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #13 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e2bbc48) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1164 #1 rw_enter+0x446 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x6c sys/kern/vfs_vnops.c:575 #5 vget+0x1c6 sys/kern/vfs_subr.c:671 #6 cache_lookup+0x2b4 sys/kern/vfs_cache.c:224 #7 ufs_lookup+0x1c0 sys/ufs/ufs/ufs_lookup.c:162 #8 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 #9 vfs_lookup+0x708 sys/kern/vfs_lookup.c:568 #10 namei+0x5f7 sys/kern/vfs_lookup.c:249 #11 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #12 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #12 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 #13 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9528 6428K 7124K 78643K 13803 0 pcb 13 8K 8K 78643K 183 0 rtable 116 5K 5K 78643K 717 0 ifaddr 86 17K 17K 78643K 253 0 sysctl 2 0K 0K 78643K 2 0 counters 45 34K 34K 78643K 117 0 ioctlops 0 0K 4K 78643K 1847 0 iov 0 0K 24K 78643K 132 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 2490 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 55 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 355 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 3188 0 sigio 0 0K 0K 78643K 27 0 proc 62 63K 95K 78643K 736 0 subproc 32 2K 2K 78643K 68 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 157 0 in_multi 33 2K 2K 78643K 142 0 ether_multi 1 0K 0K 78643K 40 0 mrt 0 0K 0K 78643K 53 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 2K 78643K 518 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 226 531K 532K 78643K 8285 0 UVM aobj 115 8K 8K 78643K 115 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 215 0 NDP 14 0K 0K 78643K 58 0 temp 142 3967K 4094K 78643K 39872 0 kqueue 3 4K 14K 78643K 234 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 10 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 96 137 0 135 1 0 1 1 0 8 0 rtentry 112 83 0 38 2 0 2 2 0 8 0 unpcb 120 824 0 806 1 0 1 1 0 8 0 syncache 272 31 0 31 4 4 0 1 0 8 0 tcpqe 32 18 0 18 3 3 0 1 0 8 0 tcpcb 592 566 0 562 12 11 1 3 0 8 0 inpcb 296 1495 0 1488 7 5 2 2 0 8 1 rttmr 72 15 0 15 1 1 0 1 0 8 0 nd6 48 13 0 6 1 0 1 1 0 8 0 kcovpl 48 4 0 2 1 0 1 1 0 8 0 pffrag 232 12 0 11 1 0 1 1 0 482 0 pffrnode 88 12 0 11 1 0 1 1 0 8 0 pffrent 40 26 0 25 1 0 1 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 17 0 15 2 1 1 1 0 8 0 pfstitem 24 15 0 13 1 0 1 1 0 8 0 pfstkey 112 15 0 13 1 0 1 1 0 8 0 pfstate 328 15 0 13 2 1 1 2 0 8 0 pfrule 1360 68 0 49 4 1 3 3 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 297 0 91 13 0 13 13 0 8 0 art_table 32 298 0 91 2 0 2 2 0 8 0 art_node 16 82 0 41 1 0 1 1 0 8 0 semapl 112 353 0 343 1 0 1 1 0 8 0 shmpl 112 112 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 5815 0 4415 89 0 89 89 0 8 0 ffsino 272 5815 0 4415 94 0 94 94 0 8 0 nchpl 144 9859 0 8263 60 0 60 60 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 208 5926 0 0 312 0 312 312 0 8 0 namei 1024 25312 0 25312 2 1 1 1 0 8 1 percpumem 16 69 0 36 1 0 1 1 0 8 0 vcpupl 1984 48 0 0 6 0 6 6 0 8 0 vmpool 560 48 0 0 4 0 4 4 0 8 0 scsiplug 72 5 0 5 1 1 0 1 0 8 0 scxspl 200 27879 0 27879 9 8 1 7 0 8 1 plimitpl 152 131 0 123 1 0 1 1 0 8 0 sigapl 424 3430 0 3378 6 0 6 6 0 8 0 futexpl 56 26134 0 26134 2 1 1 1 0 8 1 knotepl 112 322 0 302 1 0 1 1 0 8 0 kqueuepl 152 1241 0 1239 1 0 1 1 0 8 0 pipepl 304 316 0 305 8 7 1 2 0 8 0 fdescpl 496 3383 0 3367 3 0 3 3 0 8 0 filepl 152 12867 0 12764 5 0 5 5 0 8 0 lockfpl 104 411 0 410 1 0 1 1 0 8 0 lockfspl 48 158 0 157 1 0 1 1 0 8 0 sessionpl 120 21 0 10 1 0 1 1 0 8 0 pgrppl 48 81 0 70 1 0 1 1 0 8 0 ucredpl 96 2065 0 2056 1 0 1 1 0 8 0 zombiepl 144 3378 0 3378 1 0 1 1 0 8 1 processpl 1008 3430 0 3378 7 0 7 7 0 8 0 procpl 632 7440 0 7380 6 0 6 6 0 8 0 sosppl 144 17 0 17 2 2 0 1 0 8 0 sockpl 400 2475 0 2448 8 4 4 5 0 8 0 mcl64k 65536 20 0 0 3 0 3 3 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 10 0 0 1 0 1 1 0 8 0 mcl9k 9216 6 0 0 1 0 1 1 0 8 0 mcl8k 8192 12 0 0 2 0 2 2 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 252 0 0 17 0 17 17 0 8 0 mtagpl 96 238 0 0 6 0 6 6 0 8 0 mbufpl 256 735 0 0 39 0 39 39 0 8 0 bufpl 280 7588 0 1332 447 0 447 447 0 8 0 anonpl 16 277502 0 271582 64 7 57 57 0 124 29 amapchunkpl 152 13039 0 12877 12 4 8 9 0 158 0 amappl16 192 11759 0 11529 40 16 24 36 0 8 12 amappl15 184 1188 0 1188 2 2 0 1 0 8 0 amappl14 176 1836 0 1831 1 0 1 1 0 8 0 amappl13 168 185 0 181 1 0 1 1 0 8 0 amappl12 160 13 0 10 2 1 1 1 0 8 0 amappl11 152 60 0 44 1 0 1 1 0 8 0 amappl10 144 21 0 15 1 0 1 1 0 8 0 amappl9 136 341 0 340 1 0 1 1 0 8 0 amappl8 128 236 0 162 3 0 3 3 0 8 0 amappl7 120 280 0 272 1 0 1 1 0 8 0 amappl6 112 143 0 121 1 0 1 1 0 8 0 amappl5 104 1995 0 1979 1 0 1 1 0 8 0 amappl4 96 2028 0 1996 1 0 1 1 0 8 0 amappl3 88 1935 0 1927 1 0 1 1 0 8 0 amappl2 80 24371 0 24297 3 1 2 3 0 8 0 amappl1 72 96122 0 95652 25 15 10 19 0 8 0 amappl 80 7754 0 7666 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 64 114 0 0 2 0 2 2 0 8 0 uaddrrnd 24 3431 0 3367 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3431 0 3367 1 0 1 1 0 8 0 vmmpekpl 168 17648 0 17594 3 0 3 3 0 8 0 vmmpepl 168 416610 0 415066 120 26 94 94 0 357 20 vmsppl 368 3430 0 3367 6 0 6 6 0 8 0 pdppl 4096 6869 0 6782 12 0 12 12 0 8 0 pvpl 32 1175464 0 1166280 214 69 145 145 0 265 60 pmappl 232 3430 0 3367 5 1 4 4 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 303 0 12 9 0 9 9 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace m_copyback(ffff800021fdb2b0,bc,0,ffff800021fdb474,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021fdb2b0,bc,0,ffff800021fdb474,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044a00,ffff800021fdb558,fffffd8079474c00) at pflog_mtap+0x446 sys/net/if_pflog.c:389 pflog_packet(ffff800021fdb658,0,ffff800000b75548,0,ffffffff82890df8,0) at pflog_packet+0x3a4 pf_test(2,1,ffff800000b80000,ffff800021fdb878) at pf_test+0xfc5 sys/net/pf.c:7226 ip_input_if(ffff800021fdb878,ffff800021fdb884,4,0,ffff800000b80000) at ip_input_if+0x578 sys/netinet/ip_input.c:316 ipv4_input(ffff800000b80000,fffffd8079474c00) at ipv4_input+0x48 sys/netinet/ip_input.c:215 tun_dev_write(5d01,ffff800021fdbb68,ffff80002310d000,2) at tun_dev_write+0x204 sys/net/if_tun.c:868 spec_write(ffff800021fdb9c0) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806ec755b8,ffff800021fdbb68,11,fffffd807f7bfa20) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd806ca86730,ffff800021fdbb68,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800021fd4c80,f0,ffff800021fdbb68,0,ffff800021fdbc50) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800021fd4c80,ffff800021fdbc00,ffff800021fdbc50) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800021fdbcd0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021fdbcd0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7164e0b31c0, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d80ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __sanitizer_cov_trace_switch(3,ffffffff8273dee0) at __sanitizer_cov_trace_switch+0xb5 kd_curproc sys/dev/kcov.c:442 [inline] __sanitizer_cov_trace_switch(3,ffffffff8273dee0) at __sanitizer_cov_trace_switch+0xb5 trace_cmp sys/dev/kcov.c:134 [inline] __sanitizer_cov_trace_switch(3,ffffffff8273dee0) at __sanitizer_cov_trace_switch+0xb5 sys/dev/kcov.c:231 clock_gettime(ffff800021fd4028,3,ffff8000216f44c8) at clock_gettime+0x3b sys/kern/kern_time.c:114 sys_clock_gettime(ffff800021fd4028,ffff8000216f4530,ffff8000216f4580) at sys_clock_gettime+0x4c sys/kern/kern_time.c:165 syscall(ffff8000216f4600) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000216f4600) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff9b90, count: -8