panic: lock (rwlock) solock not locked Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 433848 22590 32767 0x10 0x4000000 1 syz-executor.1 *195411 38414 32767 0x10 0x4000000 0K syz-executor.2 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82585177) at panic+0x177 sys/kern/subr_prf.c:198 witness_assert(fffffd8074c7f238,4) at witness_assert+0x3ef sys/kern/subr_witness.c:1950 somove(fffffd806f3af008,1) at somove+0x25d sbspace sys/sys/socketvar.h:209 [inline] somove(fffffd806f3af008,1) at somove+0x25d sys/kern/uipc_socket.c:1487 sosplice(fffffd806f3af008,5,0,0) at sosplice+0x50b sys/kern/uipc_socket.c:1346 sosetopt(fffffd806f3af008,ffff,1023,fffffd806e6e2f00) at sosetopt+0x7f4 sys_setsockopt(ffff8000fffef270,ffff80002e4aa678,ffff80002e4aa6c0) at sys_setsockopt+0x1f6 sys/kern/uipc_syscalls.c:1233 syscall(ffff80002e4aa740) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e4aa740) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4d087013370, 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: lock (rwlock) solock not locked ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82585177) at panic+0x177 sys/kern/subr_prf.c:198 witness_assert(fffffd8074c7f238,4) at witness_assert+0x3ef sys/kern/subr_witness.c:1950 somove(fffffd806f3af008,1) at somove+0x25d sbspace sys/sys/socketvar.h:209 [inline] somove(fffffd806f3af008,1) at somove+0x25d sys/kern/uipc_socket.c:1487 sosplice(fffffd806f3af008,5,0,0) at sosplice+0x50b sys/kern/uipc_socket.c:1346 sosetopt(fffffd806f3af008,ffff,1023,fffffd806e6e2f00) at sosetopt+0x7f4 sys_setsockopt(ffff8000fffef270,ffff80002e4aa678,ffff80002e4aa6c0) at sys_setsockopt+0x1f6 sys/kern/uipc_syscalls.c:1233 syscall(ffff80002e4aa740) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e4aa740) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4d087013370, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002e4aa370 rbx 0xffffffff829bab8f cpu_info_full_primary+0x2b8f rdx 0 rcx 0 rax 0xffff8000fffef270 r8 0x101010101010101 r9 0x8080808080808080 r10 0x7481e1511f7e160e r11 0xaf5d0aaa7a825ba4 r12 0xffffffff829ba990 cpu_info_full_primary+0x2990 r13 0 r14 0 r15 0x1 rip 0xffffffff81fd76c8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002e4aa360 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.2) pid=195411 stat=onproc flags process=10 proc=4000000 pri=80, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff8000fffef7b0,0xffff8000fffee800 process=0xffff8000ffff0c90 user=0xffff80002e4a5000, vmspace=0xfffffd806a68a2f0 estcpu=30, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 30658 62541 15046 32767 2 0x10 syz-executor.3 30658 150580 15046 32767 2 0x4000010 syz-executor.3 41808 241607 39642 32767 2 0x10 syz-executor.4 41808 58616 39642 32767 3 0x4000090 fsleep syz-executor.4 22590 484630 75741 32767 2 0x10 syz-executor.1 22590 433848 75741 32767 7 0x4000010 syz-executor.1 51567 32048 45147 32767 2 0x10 syz-executor.6 51567 68762 45147 32767 2 0x4000010 syz-executor.6 51567 482952 45147 32767 2 0x4000010 syz-executor.6 38414 466248 33990 32767 2 0x10 syz-executor.2 38414 278690 33990 32767 3 0x4000090 fsleep syz-executor.2 38414 184320 33990 32767 2 0x4000010 syz-executor.2 *38414 195411 33990 32767 7 0x4000010 syz-executor.2 95541 213393 55499 32767 3 0x90 nanoslp syz-executor.5 95541 248651 55499 32767 2 0x4000010 syz-executor.5 95541 20039 55499 32767 3 0x4000090 fsleep syz-executor.5 6629 98993 30631 32767 2 0x10 syz-executor.0 6629 319300 30631 32767 2 0x4000010 syz-executor.0 15046 17462 17129 32767 2 0x10 syz-executor.3 17129 199334 1944 0 3 0x82 wait syz-executor.3 55499 247910 22877 32767 3 0x90 nanoslp syz-executor.5 22877 311773 1944 0 3 0x82 wait syz-executor.5 39642 307955 18935 32767 3 0x90 nanoslp syz-executor.4 18935 404583 1944 0 3 0x82 wait syz-executor.4 63001 44045 83654 32767 2 0x10 syz-executor.7 83654 83087 1944 0 3 0x82 wait syz-executor.7 33990 47722 32727 32767 3 0x90 nanoslp syz-executor.2 32727 507116 1944 0 3 0x82 wait syz-executor.2 33505 326610 0 0 3 0x14200 bored sosplice 45147 322432 64274 32767 3 0x90 nanoslp syz-executor.6 75741 288280 83230 32767 3 0x90 nanoslp syz-executor.1 64274 329400 1944 0 3 0x82 wait syz-executor.6 30631 213375 7791 32767 3 0x90 nanoslp syz-executor.0 83230 483499 1944 0 3 0x82 wait syz-executor.1 7791 254008 1944 0 3 0x82 wait syz-executor.0 1944 175133 32228 0 3 0x82 thrsleep syz-fuzzer 1944 215542 32228 0 3 0x4000082 nanoslp syz-fuzzer 1944 204356 32228 0 3 0x4000082 wait syz-fuzzer 1944 149730 32228 0 3 0x4000082 thrsleep syz-fuzzer 1944 317298 32228 0 3 0x4000082 thrsleep syz-fuzzer 1944 280668 32228 0 3 0x4000082 thrsleep syz-fuzzer 1944 151569 32228 0 3 0x4000082 wait syz-fuzzer 1944 408708 32228 0 3 0x4000082 thrsleep syz-fuzzer 1944 391609 32228 0 3 0x4000082 wait syz-fuzzer 1944 231532 32228 0 3 0x4000082 wait syz-fuzzer 1944 495122 32228 0 3 0x4000082 wait syz-fuzzer 1944 368546 32228 0 3 0x4000082 wait syz-fuzzer 1944 73374 32228 0 3 0x4000082 kqread syz-fuzzer 1944 282084 32228 0 3 0x4000082 wait syz-fuzzer 1944 416793 32228 0 3 0x4000082 wait syz-fuzzer 1944 466727 32228 0 3 0x4000082 thrsleep syz-fuzzer 32228 252292 28155 0 3 0x10008a sigsusp ksh 28155 272150 25614 0 3 0x9a kqread sshd 39583 434350 1 0 3 0x100083 ttyin getty 25614 271721 1 0 3 0x88 kqread sshd 79983 494480 76972 73 3 0x1100090 kqread syslogd 76972 43354 1 0 3 0x100082 netio syslogd 74177 210541 1 0 3 0x100080 kqread resolvd 17479 313243 84597 77 3 0x100092 kqread dhcpleased 7085 280625 84597 77 3 0x100092 kqread dhcpleased 84597 370673 1 0 3 0x80 kqread dhcpleased 37250 368307 0 0 3 0x14200 bored smr 45908 145897 0 0 2 0x14200 zerothread 45416 77029 0 0 3 0x14200 aiodoned aiodoned 60267 412744 0 0 3 0x14200 syncer update 8073 312920 0 0 3 0x14200 cleaner cleaner 95061 140112 0 0 3 0x14200 reaper reaper 12495 216480 0 0 3 0x14200 pgdaemon pagedaemon 48027 34411 0 0 3 0x14200 bored viomb 12110 190353 0 0 3 0x40014200 acpi0 acpi0 74424 260015 0 0 3 0x40014200 idle1 9363 383240 0 0 3 0x14200 bored softnet 89631 126500 0 0 3 0x14200 bored softnet 87796 499748 0 0 2 0x14200 softnet 27224 49178 0 0 3 0x14200 bored softnet 43278 304592 0 0 3 0x14200 bored systqmp 20627 185481 0 0 3 0x14200 bored systq 7636 384192 0 0 3 0x40014200 bored softclock 31527 232335 0 0 3 0x40014200 idle0 1 323301 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 1: exclusive sched_lock &sched_lock r = 0 (0xffffffff82ad6220) #0 witness_lock+0x44d #1 single_thread_check+0x3d sys/kern/kern_sig.c:2053 #2 sleep_finish+0x26f sleep_signal_check sys/kern/kern_synch.c:461 [inline] #2 sleep_finish+0x26f sys/kern/kern_synch.c:442 #3 rwsleep+0xd5 sys/kern/kern_synch.c:311 #4 futex_wait+0x13c sys/kern/sys_futex.c:259 #5 sys_futex+0xf8 sys/kern/sys_futex.c:110 #6 syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline] #6 syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585 #7 Xsyscall+0x128 Process 38414 (syz-executor.2) thread 0xffff8000fffef270 (195411) exclusive rwlock netlock r = 0 (0xffffffff82971a40) #0 witness_lock+0x44d #1 sys_setsockopt+0x1de sys/kern/uipc_syscalls.c:1233 #2 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #2 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #3 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82a8d100) #0 witness_lock+0x44d #1 syscall+0x41d mi_syscall sys/sys/syscall_mi.h:100 [inline] #1 syscall+0x41d sys/arch/amd64/amd64/trap.c:585 #2 Xsyscall+0x128 Process 63001 (syz-executor.7) thread 0xffff8000fffee2b0 (44045) exclusive rrwlock inode r = 0 (0xfffffd80694f8b40) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x1fc sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1324 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:560 #11 namei+0x36a sys/kern/vfs_lookup.c:244 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848 #13 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #13 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8067586a30) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:412 #6 namei+0x36a sys/kern/vfs_lookup.c:244 #7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848 #8 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #8 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10202 6410K 6420K 78643K 11320 0 pcb 13 12K 14K 78643K 17 0 rtable 242 6K 7K 78643K 1280 0 ifaddr 82 17K 17K 78643K 149 0 sysctl 3 1K 3K 78643K 18 0 counters 56 35K 35K 78643K 74 0 ioctlops 0 0K 2K 78643K 945 0 iov 0 0K 28K 78643K 1883 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1271 79K 79K 78643K 2751 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 80 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 37 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 25 93K 117K 78643K 8041 0 sigio 0 0K 0K 78643K 292 0 proc 56 78K 103K 78643K 1336 0 subproc 104 6K 6K 78643K 221 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 755 0 in_multi 99 6K 7K 78643K 323 0 ether_multi 1 0K 0K 78643K 41 0 mrt 2 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 157 705K 705K 78643K 157 0 exec 0 0K 2K 78643K 2796 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 8 62K 64K 78643K 10 0 UVM amap 330 87K 973K 78643K 50635 0 UVM aobj 131 4K 4K 78643K 131 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 216 0 NDP 11 0K 2K 78643K 54 0 temp 124 4726K 4854K 78643K 22714 0 kqueue 12 18K 28K 78643K 703 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 911 0 908 12 11 1 3 0 8 0 rtentry 112 219 0 105 4 0 4 4 0 8 0 unpcb 144 19890 0 19875 95 89 6 15 0 8 5 syncache 296 91 0 91 16 15 1 1 0 8 1 tcpqe 32 39 0 39 8 8 0 1 0 8 0 tcpcb 768 5110 0 5039 159 150 9 34 0 8 0 arp 120 39 0 19 1 0 1 1 0 8 0 ipq 40 7 0 6 3 2 1 1 0 8 0 ipqe 40 151 0 150 3 2 1 1 0 8 0 inpcb 368 9587 0 9569 151 131 20 20 0 8 18 nd6 48 57 0 31 1 0 1 1 0 8 0 kcovpl 48 17 0 9 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 869 0 409 29 0 29 29 0 8 0 art_table 32 870 0 409 4 0 4 4 0 8 0 art_node 16 218 0 114 1 0 1 1 0 8 0 sysvmsgpl 40 56 0 41 1 0 1 1 0 8 0 semupl 112 6 0 6 2 2 0 1 0 8 0 semapl 112 28 0 18 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 12054 0 10603 92 0 92 92 0 8 0 ffsino 272 12054 0 10603 98 0 98 98 0 8 0 nchpl 144 22697 0 21063 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 77428 0 77428 3 2 1 2 0 8 1 percpumem 16 49 0 9 1 0 1 1 0 8 0 kstatmem 264 40 0 18 2 0 2 2 0 8 0 scxspl 216 69191 0 69191 26 25 1 8 0 8 1 plimitpl 152 1555 0 1532 6 5 1 2 0 8 0 sigapl 424 8304 0 8250 7 0 7 7 0 8 0 futexpl 64 75562 0 75559 2 1 1 1 0 8 0 knotepl 120 743 0 0 18 1 17 17 0 8 0 kqueuepl 216 2702 0 2694 53 52 1 8 0 8 0 pipepl 320 1855 0 1827 56 53 3 8 0 8 0 fdescpl 496 8286 0 8250 7 2 5 6 0 8 0 filepl 152 67254 0 67014 134 116 18 24 0 8 8 lockfpl 104 1147 0 1145 2 1 1 2 0 8 0 lockfspl 48 345 0 343 1 0 1 1 0 8 0 sessionpl 144 32 0 16 1 0 1 1 0 8 0 pgrppl 48 141 0 125 1 0 1 1 0 8 0 ucredpl 104 9085 0 9067 1 0 1 1 0 8 0 zombiepl 144 8250 0 8250 1 0 1 1 0 8 1 processpl 1064 8304 0 8250 5 1 4 5 0 8 0 procpl 672 24364 0 24284 23 15 8 9 0 8 1 sosppl 168 127 0 124 11 10 1 1 0 8 0 sockpl 488 30553 0 30525 699 669 30 50 0 8 26 mcl64k 65536 25 0 0 3 0 3 3 0 8 0 mcl16k 16384 18 0 0 3 0 3 3 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 18 0 0 2 0 2 2 0 8 0 mcl8k 8192 35 0 0 3 0 3 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 9 0 0 1 0 1 1 0 8 0 mcl2k 2048 246 0 0 23 2 21 23 0 8 0 mtagpl 96 17 0 0 1 0 1 1 0 8 0 mbufpl 256 1378 0 0 64 0 64 64 0 8 0 bufpl 288 16062 0 9732 453 0 453 453 0 8 0 anonpl 24 1733051 0 1719893 210 111 99 127 0 186 0 amapchunkpl 152 736532 0 735863 8801 8706 95 4418 0 158 66 amappl16 200 28214 0 27836 151 129 22 45 0 8 0 amappl15 192 1802 0 1794 1 0 1 1 0 8 0 amappl14 184 2418 0 2407 1 0 1 1 0 8 0 amappl13 176 139 0 137 1 0 1 1 0 8 0 amappl12 168 437 0 429 1 0 1 1 0 8 0 amappl11 160 1258 0 1239 1 0 1 1 0 8 0 amappl10 152 30 0 28 1 0 1 1 0 8 0 amappl9 144 3011 0 3005 1 0 1 1 0 8 0 amappl8 136 2501 0 2371 6 1 5 5 0 8 0 amappl7 128 1678 0 1653 1 0 1 1 0 8 0 amappl6 120 2782 0 2764 2 1 1 2 0 8 0 amappl5 112 4740 0 4726 1 0 1 1 0 8 0 amappl4 104 5258 0 5212 2 0 2 2 0 8 0 amappl3 96 25722 0 25659 2 0 2 2 0 8 0 amappl2 88 1355 0 1312 2 0 2 2 0 8 0 amappl1 80 209887 0 209118 20 3 17 20 0 8 0 amappl 88 49558 0 49369 6 1 5 5 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 8287 0 8251 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 8287 0 8251 1 0 1 1 0 8 0 vmmpekpl 168 71159 0 71088 4 0 4 4 0 8 0 vmmpepl 168 825977 0 823049 253 119 134 145 0 357 3 vmsppl 368 8286 0 8251 4 0 4 4 0 8 0 rwobjpl 56 215020 0 207496 119 10 109 110 0 8 0 pdppl 4096 16581 0 16502 247 166 81 91 0 8 2 pvpl 32 3318509 0 3299751 437 257 180 256 0 265 7 pmappl 248 8286 0 8251 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1183 0 303 26 0 26 26 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82585177) at panic+0x177 sys/kern/subr_prf.c:198 witness_assert(fffffd8074c7f238,4) at witness_assert+0x3ef sys/kern/subr_witness.c:1950 somove(fffffd806f3af008,1) at somove+0x25d sbspace sys/sys/socketvar.h:209 [inline] somove(fffffd806f3af008,1) at somove+0x25d sys/kern/uipc_socket.c:1487 sosplice(fffffd806f3af008,5,0,0) at sosplice+0x50b sys/kern/uipc_socket.c:1346 sosetopt(fffffd806f3af008,ffff,1023,fffffd806e6e2f00) at sosetopt+0x7f4 sys_setsockopt(ffff8000fffef270,ffff80002e4aa678,ffff80002e4aa6c0) at sys_setsockopt+0x1f6 sys/kern/uipc_syscalls.c:1233 syscall(ffff80002e4aa740) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e4aa740) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4d087013370, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020dd8ff0) 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+0xb sys/dev/kcov.c:144 syscall(ffff80002b04a3f0) at syscall+0x41d mi_syscall sys/sys/syscall_mi.h:100 [inline] syscall(ffff80002b04a3f0) at syscall+0x41d sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5c79c967ff0, count: 9 ddb{1}> trace x86_ipi_db(ffff800020dd8ff0) 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+0xb sys/dev/kcov.c:144 syscall(ffff80002b04a3f0) at syscall+0x41d mi_syscall sys/sys/syscall_mi.h:100 [inline] syscall(ffff80002b04a3f0) at syscall+0x41d sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5c79c967ff0, count: -6