uvm_fault(0xfffffd807cf505f0, 0x7, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ktrops+0x4a: movq 0x8(%rbx),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND *331107 27543 0 0 0x4000000 1K syz-executor.5 459056 64428 0 0x2 0 0 syz-executor.4 ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:702 [inline] ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a sys/kern/kern_ktrace.c:547 doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline] doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 sys/kern/kern_ktrace.c:494 sys_ktrace(ffff8000ffff4000,ffff800023103b28,ffff800023103b80) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535 syscall(ffff800023103bf0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023103bf0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x171a0829a60, count: 10 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd807cf505f0, 0x7, 0, 1) -> e ddb{1}> trace ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:702 [inline] ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a sys/kern/kern_ktrace.c:547 doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline] doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 sys/kern/kern_ktrace.c:494 sys_ktrace(ffff8000ffff4000,ffff800023103b28,ffff800023103b80) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535 syscall(ffff800023103bf0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023103bf0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x171a0829a60, count: -5 ddb{1}> show registers rdi 0xffff800027b05000 rsi 0x3018 __ALIGN_SIZE+0x2018 rbp 0xffff800023103910 rbx 0xffffffffffffffff rdx 0xffff800027b05000 rcx 0x3017 __ALIGN_SIZE+0x2017 rax 0xffffffff8240efbf ktrops+0x3f r8 0xfffffd806791b160 r9 0xfffffd807f7d87e0 r10 0x75fbb1db267f2355 r11 0xc47ac33eb9330ef8 r12 0xffffffffffffffff r13 0xfffffd807f7d87e0 r14 0xffff8000ffff4000 r15 0xdf78719c rip 0xffffffff8240efca ktrops+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800023103890 ss 0x10 ktrops+0x4a: movq 0x8(%rbx),%r14 ddb{1}> show proc PROC (syz-executor.5) pid=331107 stat=onproc flags process=0 proc=4000000 pri=17, usrpri=75, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff2fc8,0xffff8000ffff4d30 process=0xffff8000230a0020 user=0xffff8000230fe000, vmspace=0xfffffd807cf505f0 estcpu=25, cpticks=1, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 2246 438667 15171 0 2 0 syz-executor.1 60674 5996 2721 0 2 0 syz-executor.3 60674 210869 2721 0 2 0x4000000 syz-executor.3 27543 236178 58974 0 2 0 syz-executor.5 *27543 331107 58974 0 7 0x4000000 syz-executor.5 45609 81728 11728 0 3 0x80 nanoslp syz-executor.2 45609 355393 11728 0 3 0x4000080 fsleep syz-executor.2 45609 440964 11728 0 3 0x4000080 fsleep syz-executor.2 11728 254706 87612 0 3 0x82 nanoslp syz-executor.2 64428 459056 87612 0 7 0x2 syz-executor.4 26635 235736 87612 0 3 0x82 nanoslp syz-executor.7 15171 424253 87612 0 3 0x82 nanoslp syz-executor.1 65601 514289 87612 0 3 0x82 nanoslp syz-executor.0 2721 85665 87612 0 3 0x82 nanoslp syz-executor.3 41235 382638 87612 0 3 0x82 nanoslp syz-executor.6 71691 283847 0 0 3 0x14280 nfsidl nfsio 59575 295794 0 0 3 0x14280 nfsidl nfsio 29942 3185 0 0 3 0x14280 nfsidl nfsio 74872 413366 0 0 3 0x14280 nfsidl nfsio 55298 242983 0 0 3 0x14280 nfsidl nfsio 74312 203343 0 0 3 0x14280 nfsidl nfsio 15480 316861 0 0 3 0x14280 nfsidl nfsio 26154 324417 0 0 3 0x14280 nfsidl nfsio 21546 391069 0 0 3 0x14280 nfsidl nfsio 27988 149474 0 0 3 0x14280 nfsidl nfsio 80908 166303 0 0 3 0x14280 nfsidl nfsio 53380 326468 0 0 3 0x14280 nfsidl nfsio 29144 75440 0 0 3 0x14280 nfsidl nfsio 24291 100559 0 0 3 0x14280 nfsidl nfsio 70522 75873 0 0 3 0x14280 nfsidl nfsio 96113 480990 0 0 3 0x14280 nfsidl nfsio 83025 179058 0 0 3 0x14280 nfsidl nfsio 3214 126679 0 0 3 0x14280 nfsidl nfsio 10206 218920 0 0 3 0x14280 nfsidl nfsio 75347 343240 0 0 3 0x14280 nfsidl nfsio 60598 521799 0 0 3 0x14200 acct acct 81081 381881 0 0 3 0x14200 bored sosplice 58974 59448 87612 0 3 0x82 nanoslp syz-executor.5 87612 206106 10886 0 3 0x82 nanoslp syz-fuzzer 87612 383843 10886 0 3 0x4000082 nanoslp syz-fuzzer 87612 49829 10886 0 3 0x4000082 thrsleep syz-fuzzer 87612 17084 10886 0 3 0x4000082 thrsleep syz-fuzzer 87612 183669 10886 0 3 0x4000082 thrsleep syz-fuzzer 87612 147766 10886 0 3 0x4000082 kqread syz-fuzzer 87612 261315 10886 0 3 0x4000082 thrsleep syz-fuzzer 87612 330102 10886 0 3 0x4000082 thrsleep syz-fuzzer 87612 260371 10886 0 3 0x4000082 thrsleep syz-fuzzer 10886 510807 74974 0 3 0x10008a sigsusp ksh 74974 417266 2700 0 3 0x9a kqread sshd 71900 411453 1 0 3 0x100083 ttyin getty 2700 456630 1 0 3 0x88 kqread sshd 72036 267867 63797 74 3 0x1100092 bpf pflogd 63797 39051 1 0 3 0x80 netio pflogd 30131 444774 50681 73 3 0x1100090 kqread syslogd 50681 286376 1 0 3 0x100082 netio syslogd 60468 356121 1 0 3 0x100080 kqread resolvd 1331 317179 24609 77 3 0x100092 kqread dhcpleased 96844 369035 24609 77 3 0x100092 kqread dhcpleased 24609 142641 1 0 3 0x80 kqread dhcpleased 78337 11118 0 0 3 0x14200 bored smr 77249 189439 0 0 2 0x14200 zerothread 9641 267523 0 0 3 0x14200 aiodoned aiodoned 11951 355589 0 0 3 0x14200 syncer update 63184 434670 0 0 3 0x14200 cleaner cleaner 65336 360260 0 0 3 0x14200 reaper reaper 28702 418845 0 0 3 0x14200 pgdaemon pagedaemon 83874 66673 0 0 3 0x14200 bored viomb 64011 493481 0 0 3 0x40014200 acpi0 acpi0 65504 88184 0 0 3 0x40014200 idle1 51124 258467 0 0 2 0x14200 softnet 73819 16873 0 0 3 0x14200 bored systqmp 83568 428902 0 0 3 0x14200 bored systq 92545 70112 0 0 3 0x40014200 bored softclock 27453 71977 0 0 3 0x40014200 idle0 1 143193 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 27543 (syz-executor.5) thread 0xffff8000ffff4000 (331107) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82a135e0) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3d3 sys/kern/sched_bsd.c:416 #3 sleep_finish+0x198 sys/kern/kern_synch.c:437 #4 tsleep+0x12c sys/kern/kern_synch.c:158 #5 biowait+0x91 sys/kern/vfs_bio.c:1271 #6 bwrite+0x21b sys/kern/vfs_bio.c:772 #7 ffs_update+0x27d sys/ufs/ffs/ffs_inode.c:113 #8 ffs_truncate+0xcec #9 ufs_inactive+0x14e sys/ufs/ufs/ufs_inode.c:84 #10 VOP_INACTIVE+0xc4 sys/kern/vfs_vops.c:505 #11 vrele+0xd2 sys/kern/vfs_subr.c:824 #12 ktrsettrace+0xb3 sys/kern/kern_ktrace.c:124 #13 ktrops+0x1a4 sys/kern/kern_ktrace.c:550 #14 doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline] #14 doktrace+0x514 sys/kern/kern_ktrace.c:494 #15 sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535 #16 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #16 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #17 Xsyscall+0x128 Process 64428 (syz-executor.4) thread 0xffff80002e35fa40 (459056) exclusive rrwlock inode r = 0 (0xfffffd807391ef88) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3101 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e458b40) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3086 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10255 6628K 7306K 78643K 22233 0 pcb 13 18K 20K 78643K 1162 0 rtable 268 17K 19K 78643K 2712 0 ifaddr 96 23K 26K 78643K 1975 0 sysctl 3 1K 1K 78643K 3 0 counters 56 35K 36K 78643K 538 0 ioctlops 0 0K 8K 78643K 7755 0 iov 0 0K 20K 78643K 1087 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1413 88K 89K 78643K 8447 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 61 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 1171 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 15 53K 93K 78643K 9990 0 sigio 0 0K 0K 78643K 740 0 proc 71 87K 148K 78643K 1825 0 subproc 104 6K 7K 78643K 548 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 346 0 in_multi 95 6K 6K 78643K 835 0 ether_multi 1 0K 0K 78643K 69 0 mrt 0 0K 0K 78643K 24 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 427 1897K 1897K 78643K 427 0 exec 0 0K 2K 78643K 2260 0 pfkey data 0 0K 1K 78643K 4 0 tdb 3 0K 0K 78643K 3 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 491 759K 759K 78643K 129039 0 UVM aobj 131 4K 4K 78643K 139 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 305 0 NDP 12 0K 1K 78643K 373 0 temp 157 4757K 5389K 78643K 105121 0 kqueue 12 18K 26K 78643K 398 0 SYN cache 2 8K 16K 78643K 3 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 876 0 872 13 12 1 3 0 8 0 rtentry 112 685 0 584 4 0 4 4 0 8 0 unpcb 136 16907 0 16892 143 142 1 9 0 8 0 syncache 296 35 0 35 14 14 0 1 0 8 0 tcpqe 32 7 0 7 3 3 0 1 0 8 0 tcpcb 736 3701 0 3697 138 137 1 13 0 8 0 arp 120 96 0 78 1 0 1 1 0 8 0 inpcb 304 13836 0 13829 205 201 4 11 0 8 3 rttmr 72 7 0 7 3 3 0 1 0 8 0 nd6 48 167 0 144 1 0 1 1 0 8 0 pkpcb 40 16 0 16 4 4 0 1 0 8 0 kcovpl 48 42 0 34 1 0 1 1 0 8 0 ppxss 1248 145 0 145 13 13 0 1 0 8 0 pfstscr 40 8 0 8 4 4 0 1 0 8 0 pffrag 232 95 0 94 8 7 1 1 0 482 0 pffrnode 88 95 0 94 8 7 1 1 0 8 0 pffrent 40 914 0 913 12 11 1 1 0 8 0 pfosfp 40 1439 0 1014 5 0 5 5 0 8 0 pfosfpen 112 1439 0 723 21 0 21 21 0 8 0 pfrktable 1344 299 0 279 7 5 2 3 0 8 0 pftag 88 109 0 106 1 0 1 1 0 8 0 pfqueue 264 75 0 75 3 3 0 1 0 8 0 pfstitem 24 24 0 22 1 0 1 1 0 8 0 pfstkey 112 32 0 30 1 0 1 1 0 8 0 pfstate 320 26 0 24 2 1 1 2 0 8 0 pfrule 1360 1295 0 1077 25 6 19 19 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 3056 0 2609 45 17 28 31 0 8 0 art_table 32 3057 0 2609 4 0 4 4 0 8 0 art_node 16 676 0 585 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 4 2 1 1 1 0 8 0 semapl 112 1168 0 1158 1 0 1 1 0 8 0 shmpl 112 136 0 8 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 16514 0 15041 93 0 93 93 0 8 0 ffsino 272 16514 0 15041 99 0 99 99 0 8 0 nchpl 144 28932 0 27303 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 117388 0 117387 6 5 1 2 0 8 0 percpumem 16 281 0 241 1 0 1 1 0 8 0 vcpupl 2048 101 0 0 13 0 13 13 0 8 0 vmpool 560 110 0 9 8 0 8 8 0 8 0 pfiaddrpl 120 110 0 82 1 0 1 1 0 8 0 scsiplug 72 7 0 7 1 1 0 1 0 8 0 scxspl 216 73355 0 73355 25 24 1 8 0 8 1 plimitpl 152 786 0 771 1 0 1 1 0 8 0 sigapl 424 10255 0 10189 8 0 8 8 0 8 0 futexpl 64 89609 0 89607 4 3 1 1 0 8 0 knotepl 120 352 0 0 9 1 8 9 0 8 0 kqueuepl 216 1857 0 1849 51 50 1 8 0 8 0 pipepl 336 3126 0 3098 106 103 3 10 0 8 0 fdescpl 496 10219 0 10191 5 1 4 5 0 8 0 filepl 152 99295 0 99053 210 198 12 25 0 8 1 lockfpl 104 2127 0 2125 5 4 1 2 0 8 0 lockfspl 48 599 0 597 1 0 1 1 0 8 0 sessionpl 144 58 0 41 1 0 1 1 0 8 0 pgrppl 48 142 0 125 1 0 1 1 0 8 0 ucredpl 96 28214 0 28199 1 0 1 1 0 8 0 zombiepl 144 10192 0 10189 1 0 1 1 0 8 0 processpl 1064 10255 0 10189 5 0 5 5 0 8 0 procpl 672 30266 0 30188 33 25 8 9 0 8 0 srpgc 96 41 0 41 12 12 0 1 0 8 0 sosppl 168 102 0 102 20 20 0 1 0 8 0 sockpl 480 31653 0 31627 909 899 10 35 0 8 6 mcl64k 65536 34 0 0 4 1 3 3 0 8 0 mcl16k 16384 27 0 0 4 2 2 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 25 0 0 2 0 2 2 0 8 0 mcl8k 8192 49 0 0 4 1 3 3 0 8 0 mcl4k 4096 34 0 0 3 0 3 3 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 227 0 0 17 3 14 17 0 8 0 mtagpl 96 621 0 0 12 3 9 11 0 8 0 mbufpl 256 1543 0 0 52 1 51 52 0 8 0 bufpl 288 17751 0 11415 453 0 453 453 0 8 0 anonpl 24 2911182 0 2893958 247 111 136 147 0 186 0 amapchunkpl 152 320100 0 319253 106 69 37 49 0 158 0 amappl16 200 27589 0 26930 168 132 36 46 0 8 1 amappl15 192 3017 0 3010 1 0 1 1 0 8 0 amappl14 184 236 0 231 1 0 1 1 0 8 0 amappl13 176 682 0 677 1 0 1 1 0 8 0 amappl12 168 2691 0 2690 2 1 1 1 0 8 0 amappl11 160 691 0 674 1 0 1 1 0 8 0 amappl10 152 1347 0 1336 1 0 1 1 0 8 0 amappl9 144 842 0 840 1 0 1 1 0 8 0 amappl8 136 2751 0 2646 4 0 4 4 0 8 0 amappl7 128 1618 0 1606 1 0 1 1 0 8 0 amappl6 120 679 0 652 2 1 1 2 0 8 0 amappl5 112 7981 0 7964 1 0 1 1 0 8 0 amappl4 104 3087 0 3051 5 3 2 2 0 8 1 amappl3 96 3959 0 3945 1 0 1 1 0 8 0 amappl2 88 4197 0 4143 3 1 2 3 0 8 0 amappl1 80 187023 0 186454 21 7 14 19 0 8 0 amappl 88 127857 0 127557 10 2 8 8 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 72 138 0 8 3 0 3 3 0 8 0 uaddrrnd 24 10329 0 10200 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 10329 0 10200 1 0 1 1 0 8 0 vmmpekpl 168 86177 0 86095 5 0 5 5 0 8 0 vmmpepl 168 937477 0 934705 347 207 140 149 0 357 3 vmsppl 368 10328 0 10200 14 2 12 12 0 8 0 rwobjpl 56 234206 0 226415 120 7 113 114 0 8 0 pdppl 4096 20665 0 20501 737 567 170 170 0 8 6 pvpl 32 4866693 0 4845239 513 302 211 246 0 265 0 pmappl 248 10328 0 10200 10 1 9 9 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 1820 0 847 29 0 29 29 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff82944ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 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_pc() at __sanitizer_cov_trace_pc+0x28 kd_curproc sys/dev/kcov.c:577 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 sys/dev/kcov.c:148 __mp_lock(ffffffff82a133d8) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82a133d8) at __mp_lock+0x133 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82a133d8,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x3d3 sys/kern/sched_bsd.c:416 sleep_finish(ffff8000278b24b0,1) at sleep_finish+0x198 sys/kern/kern_synch.c:437 tsleep(fffffd80678a26e0,11,ffffffff82635661,0) at tsleep+0x12c sys/kern/kern_synch.c:158 getblk(fffffd807efc87e0,ca940,4000,0,ffffffffffffffff) at getblk+0x13c sys/kern/vfs_bio.c:1031 bread(fffffd807efc87e0,ca940,4000,ffff8000278b2758) at bread+0x3a bio_doread sys/kern/vfs_bio.c:436 [inline] bread(fffffd807efc87e0,ca940,4000,ffff8000278b2758) at bread+0x3a sys/kern/vfs_bio.c:481 ffs_update(fffffd806e458aa8,1) at ffs_update+0x14b sys/ufs/ffs/ffs_inode.c:91 ufs_mkdir(ffff8000278b2950) at ufs_mkdir+0x433 sys/ufs/ufs/ufs_vnops.c:1197 VOP_MKDIR(fffffd807d4d0510,ffff8000278b2ab0,ffff8000278b2ae0,ffff8000278b29e0) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 end trace frame: 0xffff8000278b2b80, count: 0 ddb{0}> trace x86_ipi_db(ffffffff82944ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 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_pc() at __sanitizer_cov_trace_pc+0x28 kd_curproc sys/dev/kcov.c:577 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 sys/dev/kcov.c:148 __mp_lock(ffffffff82a133d8) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82a133d8) at __mp_lock+0x133 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82a133d8,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x3d3 sys/kern/sched_bsd.c:416 sleep_finish(ffff8000278b24b0,1) at sleep_finish+0x198 sys/kern/kern_synch.c:437 tsleep(fffffd80678a26e0,11,ffffffff82635661,0) at tsleep+0x12c sys/kern/kern_synch.c:158 getblk(fffffd807efc87e0,ca940,4000,0,ffffffffffffffff) at getblk+0x13c sys/kern/vfs_bio.c:1031 bread(fffffd807efc87e0,ca940,4000,ffff8000278b2758) at bread+0x3a bio_doread sys/kern/vfs_bio.c:436 [inline] bread(fffffd807efc87e0,ca940,4000,ffff8000278b2758) at bread+0x3a sys/kern/vfs_bio.c:481 ffs_update(fffffd806e458aa8,1) at ffs_update+0x14b sys/ufs/ffs/ffs_inode.c:91 ufs_mkdir(ffff8000278b2950) at ufs_mkdir+0x433 sys/ufs/ufs/ufs_vnops.c:1197 VOP_MKDIR(fffffd807d4d0510,ffff8000278b2ab0,ffff8000278b2ae0,ffff8000278b29e0) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 domkdirat(ffff80002e35fa40,ffffff9c,7f7ffffc0200,1ff) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3101 syscall(ffff8000278b2c60) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000278b2c60) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc0270, count: -17 ddb{0}> machine ddbcpu 1 Stopped at ktrops+0x4a: movq 0x8(%rbx),%r14 ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:702 [inline] ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a sys/kern/kern_ktrace.c:547 doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline] doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 sys/kern/kern_ktrace.c:494 sys_ktrace(ffff8000ffff4000,ffff800023103b28,ffff800023103b80) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535 syscall(ffff800023103bf0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023103bf0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x171a0829a60, count: 10 ddb{1}> trace ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:702 [inline] ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a sys/kern/kern_ktrace.c:547 doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline] doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 sys/kern/kern_ktrace.c:494 sys_ktrace(ffff8000ffff4000,ffff800023103b28,ffff800023103b80) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535 syscall(ffff800023103bf0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023103bf0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x171a0829a60, count: -5