panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *342592 65247 32767 0x10 0x4000000 0K syz-executor 95625 65247 32767 0x10 0x4000000 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830bb197) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806b472a58,20000000,20001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806b472a58,20000000,20001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 sysctl_vsunlock(20000080,0) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:204 net_sysctl(ffff80003e3b1574,3,20000080,ffff80003e3b15a8,0,d1ef4960be19f686,37a8d0564e3ed413) at net_sysctl+0x69a sys/kern/uipc_domain.c:251 sys_sysctl(ffff800037204a88,ffff80003e3b16e0,ffff80003e3b1630) at sys_sysctl+0x422 syscall(ffff80003e3b16e0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80003e3b16e0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x958eaed39f0, count: 6 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault_unwire_locked: address not in map ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830bb197) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806b472a58,20000000,20001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806b472a58,20000000,20001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 sysctl_vsunlock(20000080,0) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:204 net_sysctl(ffff80003e3b1574,3,20000080,ffff80003e3b15a8,0,d1ef4960be19f686,37a8d0564e3ed413) at net_sysctl+0x69a sys/kern/uipc_domain.c:251 sys_sysctl(ffff800037204a88,ffff80003e3b16e0,ffff80003e3b1630) at sys_sysctl+0x422 syscall(ffff80003e3b16e0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80003e3b16e0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x958eaed39f0, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003e3b12f0 rbx 0xffffffff8343bd87 cpu_info_full_primary+0x2d87 rdx 0 rcx 0xffff800037204a88 rax 0xffffffff8343aff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xadb42d0aa06a86a4 r11 0x8386ce73eff16ae0 r12 0xffffffff8343bb88 cpu_info_full_primary+0x2b88 r13 0 r14 0 r15 0x1 rip 0xffffffff8134b8d5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003e3b12e0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=342592 pid=65247 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=50, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003720c548,0xffff800037205740 process=0xffff80003cc97670 user=0xffff80003e3ac000, vmspace=0xfffffd806b472a58 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 65247 418743 98919 32767 2 0x10 syz-executor *65247 342592 98919 32767 7 0x4000010 syz-executor 65247 257156 98919 32767 2 0x4000010 syz-executor 65247 95625 98919 32767 7 0x4000010 syz-executor 35836 125107 13131 32767 3 0x90 nanoslp syz-executor 35836 247878 13131 32767 3 0x4000090 fsleep syz-executor 35836 177664 13131 32767 3 0x4000090 kqsel syz-executor 35836 133406 13131 32767 3 0x4000090 fsleep syz-executor 45819 371815 43183 32767 3 0x90 nanoslp syz-executor 45819 88252 43183 32767 3 0x4000090 sbwait syz-executor 45819 308302 43183 32767 3 0x4000090 fsleep syz-executor 92839 500643 61135 32767 3 0x90 nanoslp syz-executor 92839 358944 61135 32767 3 0x4000090 kqsel syz-executor 92839 182095 61135 32767 3 0x4000090 fsleep syz-executor 1394 211312 55954 32767 3 0x90 nanoslp syz-executor 1394 125763 55954 32767 3 0x4000090 netacc syz-executor 1394 284396 55954 32767 3 0x4000090 fsleep syz-executor 75225 484169 34756 0 3 0x82 wait syz-executor 61135 435260 72122 32767 3 0x90 nanoslp syz-executor 72122 296641 34756 0 3 0x82 wait syz-executor 43183 35136 68686 32767 3 0x90 nanoslp syz-executor 68686 149591 34756 0 3 0x82 wait syz-executor 98919 2742 16404 32767 3 0x90 nanoslp syz-executor 16404 45351 34756 0 3 0x82 wait syz-executor 42119 152622 18595 32767 3 0x90 wait syz-executor 18595 155492 34756 0 3 0x82 wait syz-executor 85495 244086 39666 32767 3 0x90 nanoslp syz-executor 39666 13614 34756 0 3 0x82 wait syz-executor 55954 194187 283 32767 3 0x90 nanoslp syz-executor 283 204375 34756 0 3 0x82 wait syz-executor 13131 295670 95885 32767 3 0x90 nanoslp syz-executor 95885 277723 34756 0 3 0x82 wait syz-executor 48927 516782 13834 0 3 0x100082 sbwait ndp 13834 405501 24226 0 3 0x10008a sigsusp sh 92995 312001 44208 0 3 0x100082 sbwait ndp 44208 347456 37892 0 3 0x10008a sigsusp sh 24226 18345 1 0 3 0x80 wait syz-executor 37892 363169 1 0 3 0x80 wait syz-executor 20495 42460 0 0 3 0x14200 bored sosplice 34756 225056 65994 0 3 0x82 kqread syz-executor 65994 513112 95404 0 3 0x10008a sigsusp ksh 95404 218837 45124 0 3 0x98 kqread sshd-session 45124 204813 50945 0 3 0x92 kqread sshd-session 82845 477724 1 0 3 0x100083 ttyin getty 50945 516550 1 0 3 0x88 kqread sshd 64668 212393 47564 73 3 0x1100090 kqread syslogd 47564 297495 1 0 3 0x100082 sbwait syslogd 65515 73773 1 0 3 0x100080 kqread resolvd 4962 215602 56200 77 3 0x100092 kqread dhcpleased 81690 272481 56200 77 3 0x100092 kqread dhcpleased 56200 364126 1 0 3 0x80 kqread dhcpleased 5645 254734 0 0 3 0x14200 bored smr 35796 407763 0 0 3 0x14200 pgzero zerothread 1182 186906 0 0 3 0x14200 aiodoned aiodoned 83408 375737 0 0 3 0x14200 syncer update 21492 26390 0 0 3 0x14200 cleaner cleaner 88496 463068 0 0 3 0x14200 reaper reaper 57220 14702 0 0 3 0x14200 pgdaemon pagedaemon 22359 229170 0 0 3 0x14200 bored viomb 96076 346733 0 0 3 0x40014200 acpi0 acpi0 69176 435621 0 0 3 0x40014200 idle1 30739 442804 0 0 3 0x14200 bored softnet3 79883 284778 0 0 3 0x14200 bored softnet2 44217 316309 0 0 3 0x14200 bored softnet1 57707 51531 0 0 3 0x14200 bored softnet0 42745 121970 0 0 3 0x14200 bored systqmp 96316 25604 0 0 3 0x14200 bored systq 48237 476253 0 0 3 0x14200 tmoslp softclockmp 56218 140619 0 0 3 0x40014200 tmoslp softclock 17216 75831 0 0 3 0x40014200 idle0 1 18661 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 65247 (syz-executor) thread 0xffff800037204a88 (342592) shared rwlock vmmaplk r = 0 (0xfffffd806b472b48) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 uvm_fault_unwire+0x3e sys/uvm/uvm_fault.c:1622 #2 sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:204 #3 net_sysctl+0x69a sys/kern/uipc_domain.c:251 #4 sys_sysctl+0x422 #5 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #5 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83581f30) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 sysctl_vslock+0x80 sys/kern/kern_sysctl.c:181 #2 net_sysctl+0x5a1 sys/kern/uipc_domain.c:245 #3 sys_sysctl+0x422 #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff83406ba0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:176 #3 net_sysctl+0x5a1 sys/kern/uipc_domain.c:245 #4 sys_sysctl+0x422 #5 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #5 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10223 14124K 14131K 166960K 12551 0 pcb 17 24K 26K 166960K 27 0 rtable 242 6K 7K 166960K 14139 0 pf 31 16K 16K 166960K 869 0 ifaddr 42 11K 11K 166960K 1714 0 ifgroup 50 2K 2K 166960K 1720 0 sysctl 4 1K 5K 166960K 46 0 counters 64 36K 36K 166960K 896 0 ioctlops 0 0K 2K 166960K 782 0 iov 0 0K 24K 166960K 1982 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1482 93K 93K 166960K 11964 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 351 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 675 0 dirhash 15 2K 4K 166960K 552 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 31 117K 181K 166960K 22928 0 sigio 0 0K 0K 166960K 616 0 proc 59 91K 176K 166960K 13948 0 subproc 130 8K 13K 166960K 6981 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 5481 0 in_multi 100 7K 7K 166960K 5610 0 ether_multi 1 0K 0K 166960K 157 0 mrt 1 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 277 1235K 1235K 166960K 277 0 exec 0 0K 1K 166960K 9564 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 325 93K 148K 166960K 191318 0 UVM aobj 131 4K 8K 166960K 148 0 pinsyscall 54 108K 142K 166960K 35735 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 1574 0 NDP 11 0K 2K 166960K 1270 0 temp 84 6824K 6953K 166960K 163532 0 kqueue 14 22K 34K 166960K 3376 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 3142 0 3136 17 16 1 3 0 8 0 rtentry 112 4899 0 4785 11 7 4 4 0 8 0 unpcb 144 19920 0 19904 82 80 2 11 0 8 1 syncache 336 328 0 328 25 24 1 1 0 8 1 tcpqe 32 131 0 131 25 24 1 1 0 8 1 tcpcb 808 14219 0 14174 198 187 11 19 0 8 5 arp 120 861 0 842 1 0 1 1 0 8 0 ipq 40 100 0 93 2 1 1 1 0 8 0 ipqe 40 1003 0 995 2 1 1 1 0 8 0 inpcb 336 32845 0 32794 241 231 10 24 0 8 3 ip6q 72 2 0 2 2 2 0 1 0 8 0 ip6af 40 4 0 4 2 2 0 1 0 8 0 nd6 136 1480 0 1453 6 4 2 2 0 8 0 kcovpl 48 537 0 527 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 19849 0 19380 168 137 31 32 0 8 0 art_table 32 19850 0 19380 11 6 5 5 0 8 0 art_node 16 4898 0 4794 1 0 1 1 0 8 0 sysvmsgpl 40 30 0 14 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 673 0 663 1 0 1 1 0 8 0 shmpl 112 145 0 17 4 0 4 4 0 8 0 dirhash 1024 384 0 361 5 1 4 4 0 8 0 dino2pl 256 28878 0 25901 187 0 187 187 0 8 0 ffsino 272 28878 0 25901 199 0 199 199 0 8 0 nchpl 144 51924 0 49131 105 1 104 104 0 8 0 uvmvnodes 80 9834 0 0 201 0 201 201 0 8 0 vnodes 216 9834 0 0 547 0 547 547 0 8 0 namei 1024 233237 0 233237 18 17 1 2 0 8 1 percpumem 16 462 0 416 1 0 1 1 0 8 0 kstatmem 264 854 0 832 3 1 2 2 0 8 0 scxspl 216 265006 0 265006 61 58 3 8 1 8 3 plimitpl 152 6938 0 6910 2 0 2 2 0 8 0 sigapl 424 22350 0 22288 14 5 9 9 0 8 0 futexpl 64 247403 0 247398 25 24 1 1 0 8 0 knotepl 120 1287 0 0 19 1 18 18 0 8 0 kqueuepl 216 7247 0 7234 66 61 5 5 0 8 4 pipepl 320 4737 0 4703 49 45 4 9 0 8 0 fdescpl 496 22331 0 22288 20 13 7 8 0 8 0 filepl 152 158672 0 158381 104 86 18 27 0 8 2 lockfpl 104 5251 0 5249 2 1 1 2 0 8 0 lockfspl 48 1509 0 1507 1 0 1 1 0 8 0 sessionpl 144 643 0 625 1 0 1 1 0 8 0 pgrppl 48 1596 0 1570 1 0 1 1 0 8 0 ucredpl 104 30909 0 30890 1 0 1 1 0 8 0 zombiepl 144 22291 0 22288 1 0 1 1 0 8 0 processpl 1160 22350 0 22288 8 2 6 6 0 8 0 procpl 648 50040 0 49966 14 7 7 8 0 8 0 srpgc 96 22 0 22 9 9 0 1 0 8 0 sosppl 168 209 0 207 19 18 1 1 0 8 0 sockpl 664 56510 0 56435 325 313 12 34 0 8 1 mcl64k 65536 27 0 0 3 1 2 3 0 8 0 mcl16k 16384 9 0 0 2 0 2 2 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 20 0 0 3 0 3 3 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 589 0 0 29 8 21 29 0 8 0 mtagpl 96 8 0 0 1 0 1 1 0 8 0 mbufpl 256 1627 0 0 69 0 69 69 0 8 0 bufpl 280 39769 0 29932 703 0 703 703 0 8 0 anonpl 24 2668210 0 2658969 309 222 87 105 0 185 8 amapchunkpl 152 634390 0 633474 225 175 50 54 0 158 11 amappl16 200 54359 0 54213 304 283 21 31 0 8 10 amappl15 192 45 0 45 5 5 0 1 0 8 0 amappl14 184 1357 0 1345 1 0 1 1 0 8 0 amappl13 176 47 0 47 16 15 1 1 0 8 1 amappl12 168 29861 0 29816 7 4 3 3 0 8 0 amappl11 160 48 0 37 1 0 1 1 0 8 0 amappl10 152 32 0 31 2 1 1 1 0 8 0 amappl9 144 135 0 134 2 1 1 1 0 8 0 amappl8 136 20 0 18 1 0 1 1 0 8 0 amappl7 128 1131 0 1117 1 0 1 1 0 8 0 amappl6 120 4303 0 4299 1 0 1 1 0 8 0 amappl5 112 2013 0 2004 1 0 1 1 0 8 0 amappl4 104 2358 0 2340 1 0 1 1 0 8 0 amappl3 96 126455 0 126293 6 1 5 5 0 8 0 amappl2 88 8832 0 8761 5 3 2 3 0 8 0 amappl1 80 152837 0 152233 22 6 16 18 0 8 0 amappl 88 185399 0 185137 10 3 7 7 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 72 147 0 17 3 0 3 3 0 8 0 uaddrrnd 24 22331 0 22288 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 22331 0 22288 1 0 1 1 0 8 0 vmmpekpl 168 206395 0 206342 5 0 5 5 0 8 0 vmmpepl 168 1407308 0 1404891 313 194 119 133 0 357 4 vmsppl 440 22330 0 22288 12 6 6 7 0 8 0 rwobjpl 56 378190 0 367059 177 16 161 162 0 8 0 pdppl 4096 44669 0 44576 1159 1064 95 125 0 8 2 pvpl 32 48489 0 0 388 1 387 387 0 265 0 pmappl 248 22330 0 22288 7 3 4 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2311 0 1672 19 0 19 19 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830bb197) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806b472a58,20000000,20001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806b472a58,20000000,20001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 sysctl_vsunlock(20000080,0) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:204 net_sysctl(ffff80003e3b1574,3,20000080,ffff80003e3b15a8,0,d1ef4960be19f686,37a8d0564e3ed413) at net_sysctl+0x69a sys/kern/uipc_domain.c:251 sys_sysctl(ffff800037204a88,ffff80003e3b16e0,ffff80003e3b1630) at sys_sysctl+0x422 syscall(ffff80003e3b16e0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80003e3b16e0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x958eaed39f0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:158 __mp_lock(ffffffff83581d28) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83581d28) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 vn_write(fffffd806decad20,ffff80003e40fc48,0) at vn_write+0x4e sys/kern/vfs_vnops.c:393 dofilewritev(ffff8000ffffca30,c8,ffff80003e40fc48,0,ffff80003e40fd00) at dofilewritev+0x23c sys/kern/sys_generic.c:380 sys_write(ffff8000ffffca30,ffff80003e40fdb0,ffff80003e40fd00) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80003e40fdb0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80003e40fdb0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9587cfdba70, count: 5 ddb{1}> trace x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:158 __mp_lock(ffffffff83581d28) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83581d28) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 vn_write(fffffd806decad20,ffff80003e40fc48,0) at vn_write+0x4e sys/kern/vfs_vnops.c:393 dofilewritev(ffff8000ffffca30,c8,ffff80003e40fc48,0,ffff80003e40fd00) at dofilewritev+0x23c sys/kern/sys_generic.c:380 sys_write(ffff8000ffffca30,ffff80003e40fdb0,ffff80003e40fd00) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80003e40fdb0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80003e40fdb0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9587cfdba70, count: -10