kernel: protection fault trap, code=0 Stopped at sys_msgrcv+0x2df: movq 0x10(%r13),%rdi ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace sys_msgrcv(ffff80002a1dd008,ffff80003598c3e0,ffff80003598c430) at sys_msgrcv+0x2df msg_copyout sys/kern/sysv_msg.c:639 [inline] sys_msgrcv(ffff80002a1dd008,ffff80003598c3e0,ffff80003598c430) at sys_msgrcv+0x2df sys/kern/sysv_msg.c:349 syscall(ffff80003598c4e0) at syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80003598c4e0) at syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5b26ed823c0, count: -3 ddb{0}> show registers rdi 0x1008 __ALIGN_SIZE+0x8 rsi 0x200000c8 rbp 0xffff80003598c3d0 rbx 0x1008 __ALIGN_SIZE+0x8 rdx 0 rcx 0xffff80002a1dd008 rax 0xffffffff82c9fff0 cpu_info_full_primary+0x1ff0 r8 0x7f7fffffc000 r9 0x1 r10 0xe643475e3563391c r11 0x8505d789530c1732 r12 0xfffffd8070861f00 r13 0xdeafbeaddeafbead r14 0xffff800000e19200 r15 0xa5 rip 0xffffffff8210aa2f sys_msgrcv+0x2df cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80003598c340 ss 0x10 sys_msgrcv+0x2df: movq 0x10(%r13),%rdi ddb{0}> show proc PROC (syz-executor.4) tid=510898 pid=13685 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=64, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a1a3818,0xffff80002a1a3030 process=0xffff8000ffff5ac0 user=0xffff800035987000, vmspace=0xfffffd8066d68568 estcpu=31, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 39365 421978 23620 0 2 0 syz-executor.1 39365 412915 23620 0 3 0x4000080 fsleep syz-executor.1 41013 250100 12944 0 3 0x80 nanoslp syz-executor.6 41013 309846 12944 0 3 0x4000080 msgwait syz-executor.6 41013 483262 12944 0 3 0x4000080 fsleep syz-executor.6 41013 436295 12944 0 3 0x4000080 fsleep syz-executor.6 13685 350303 55981 0 2 0 syz-executor.4 13685 276372 55981 0 3 0x4000080 fsleep syz-executor.4 *13685 510898 55981 0 7 0x4000000 syz-executor.4 13685 63093 55981 0 3 0x4000080 fsleep syz-executor.4 43868 319748 72617 0 7 0x2 syz-executor.7 12944 197542 72617 0 3 0x82 nanoslp syz-executor.6 16313 97691 72617 0 2 0x2 syz-executor.5 43545 482076 72617 0 3 0x82 nanoslp syz-executor.3 55981 115879 72617 0 3 0x82 nanoslp syz-executor.4 23620 502790 72617 0 3 0x82 nanoslp syz-executor.1 38333 39851 72617 0 2 0x2 syz-executor.2 1693 89901 72617 0 2 0x2 syz-executor.0 72617 343916 49437 0 3 0x2000082 thrsleep syz-fuzzer 72617 134585 49437 0 3 0x6000082 nanoslp syz-fuzzer 72617 178258 49437 0 3 0x6000082 wait syz-fuzzer 72617 267850 49437 0 3 0x6000082 thrsleep syz-fuzzer 72617 268451 49437 0 3 0x6000082 wait syz-fuzzer 72617 400229 49437 0 3 0x6000082 wait syz-fuzzer 72617 261727 49437 0 3 0x6000082 thrsleep syz-fuzzer 72617 87964 49437 0 3 0x6000082 wait syz-fuzzer 72617 57150 49437 0 3 0x6000082 kqread syz-fuzzer 72617 3090 49437 0 3 0x6000082 wait syz-fuzzer 72617 450088 49437 0 3 0x6000082 thrsleep syz-fuzzer 72617 328710 49437 0 3 0x6000082 wait syz-fuzzer 72617 404213 49437 0 3 0x6000082 wait syz-fuzzer 72617 258157 49437 0 3 0x6000082 wait syz-fuzzer 72617 122289 49437 0 3 0x6000082 thrsleep syz-fuzzer 49437 80485 85369 0 3 0x10008a sigsusp ksh 85369 296655 1782 0 3 0x9a kqread sshd 37472 392708 1 0 3 0x100083 ttyin getty 1782 522183 1 0 3 0x88 kqread sshd 31877 39150 18706 74 3 0x1100092 bpf pflogd 18706 469767 1 0 3 0x80 netio pflogd 39724 188420 32525 73 3 0x1100090 kqread syslogd 32525 152336 1 0 3 0x100082 netio syslogd 37165 293997 1 0 3 0x100080 kqread resolvd 54254 374935 88972 77 3 0x100092 kqread dhcpleased 19261 486179 88972 77 3 0x100092 kqread dhcpleased 88972 798 1 0 3 0x80 kqread dhcpleased 77030 257885 0 0 3 0x14200 bored smr 78734 320938 0 0 2 0x14200 zerothread 25815 189135 0 0 3 0x14200 aiodoned aiodoned 98859 520245 0 0 3 0x14200 syncer update 17699 486713 0 0 3 0x14200 cleaner cleaner 27975 429646 0 0 3 0x14200 reaper reaper 94355 170738 0 0 3 0x14200 pgdaemon pagedaemon 68632 279019 0 0 3 0x14200 bored viomb 27447 22389 0 0 3 0x40014200 acpi0 acpi0 96711 300958 0 0 3 0x40014200 idle1 3772 109334 0 0 3 0x14200 bored softnet3 57622 485636 0 0 3 0x14200 bored softnet2 51779 324178 0 0 3 0x14200 bored softnet1 80052 399347 0 0 3 0x14200 bored softnet0 29563 218576 0 0 3 0x14200 bored systqmp 41115 124937 0 0 3 0x14200 bored systq 1794 140352 0 0 3 0x14200 tmoslp softclockmp 77598 168737 0 0 3 0x40014200 tmoslp softclock 34634 456255 0 0 3 0x40014200 idle0 1 109072 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 13685 (syz-executor.4) thread 0xffff80002a1dd008 (510898) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82e76388) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x46f sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19b sys/kern/kern_synch.c:414 #4 rw_enter+0x341 sys/kern/kern_rwlock.c:285 #5 uvm_fault_check+0x41a sys/uvm/uvm_fault.c:782 #6 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #7 kpageflttrap+0x252 sys/arch/amd64/amd64/trap.c:279 #8 kerntrap+0xf3 sys/arch/amd64/amd64/trap.c:332 #9 alltraps_kern_meltdown+0x7b #10 copyout+0x57 #11 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #11 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #12 Xsyscall+0x128 Process 16313 (syz-executor.5) thread 0xffff80002a1a4560 (97691) exclusive rrwlock inode r = 0 (0xfffffd80690fe098) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1145 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #10 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8066dec708) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #9 Xsyscall+0x128 Process 38333 (syz-executor.2) thread 0xffff80002a1bb000 (39851) exclusive rrwlock inode r = 0 (0xfffffd80690fe1a8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1145 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #10 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806b8c04d8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #9 Xsyscall+0x128 Process 1693 (syz-executor.0) thread 0xffff80002a1bc298 (89901) exclusive rrwlock inode r = 0 (0xfffffd80690fe2b8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1145 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #10 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806b8c0918) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10184 6538K 6554K 166960K 11291 0 pcb 15 10K 10K 166960K 18 0 rtable 234 6K 6K 166960K 348 0 pf 32 9K 10K 166960K 43 0 ifaddr 45 15K 15K 166960K 47 0 ifgroup 55 2K 2K 166960K 55 0 sysctl 2 0K 0K 166960K 2 0 counters 64 36K 36K 166960K 64 0 ioctlops 0 0K 4K 166960K 1483 0 iov 0 0K 0K 166960K 73 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1282 80K 80K 166960K 1313 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 6 0K 0K 166960K 6 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 13 45K 81K 166960K 166 0 sigio 0 0K 0K 166960K 2 0 proc 67 91K 128K 166960K 532 0 subproc 104 6K 6K 166960K 104 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 381 0 tdb 3 0K 0K 166960K 3 0 pagedep 1 8K 8K 166960K 1 0 inodedep 1 32K 32K 166960K 1 0 newblk 1 0K 0K 166960K 1 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 309 81K 82K 166960K 4007 0 UVM aobj 3 2K 2K 166960K 3 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 12 0K 1K 166960K 28 0 temp 46 6701K 6765K 166960K 4377 0 kqueue 12 18K 18K 166960K 22 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 33 0 30 1 0 1 1 0 8 0 rtentry 112 111 0 1 4 0 4 4 0 8 0 unpcb 144 194 0 179 4 0 4 4 0 8 3 syncache 312 4 0 4 1 1 0 1 0 8 0 tcpqe 32 561 0 561 3 2 1 2 0 8 1 tcpcb 808 13 0 8 1 0 1 1 0 8 0 arp 120 18 0 0 1 0 1 1 0 8 0 inpcb 368 73 0 65 2 0 2 2 0 8 1 nd6 136 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 18 0 2 1 0 1 1 0 8 0 pfstkey 128 18 0 2 1 0 1 1 0 8 0 pfstate 376 18 0 2 2 0 2 2 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 453 0 0 29 0 29 29 0 8 0 art_table 32 454 0 0 4 0 4 4 0 8 0 art_node 16 110 0 10 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 6 1 0 1 1 0 8 0 semapl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1535 0 90 91 0 91 91 0 8 0 ffsino 272 1536 0 90 97 0 97 97 0 8 0 nchpl 144 1857 0 170 64 0 64 64 0 8 0 uvmvnodes 80 1668 0 0 35 0 35 35 0 8 0 vnodes 216 1668 0 0 93 0 93 93 0 8 0 namei 1024 6859 0 6856 3 1 2 2 0 8 1 percpumem 16 46 0 0 1 0 1 1 0 8 0 kstatmem 264 24 0 0 2 0 2 2 0 8 0 scxspl 216 7071 0 7071 11 3 8 8 1 8 8 plimitpl 152 34 0 18 1 0 1 1 0 8 0 sigapl 424 481 0 436 8 2 6 6 0 8 0 futexpl 64 559 0 554 1 0 1 1 0 8 0 knotepl 120 118 0 0 4 0 4 4 0 8 0 kqueuepl 216 18 0 10 1 0 1 1 0 8 0 pipepl 320 143 0 115 4 1 3 3 0 8 0 fdescpl 496 463 0 437 6 1 5 5 0 8 0 filepl 152 2352 0 2111 13 0 13 13 0 8 2 lockfpl 104 29 0 26 1 0 1 1 0 8 0 lockfspl 48 16 0 13 1 0 1 1 0 8 0 sessionpl 144 24 0 7 1 0 1 1 0 8 0 pgrppl 48 24 0 7 1 0 1 1 0 8 0 ucredpl 104 65 0 53 1 0 1 1 0 8 0 zombiepl 144 437 0 436 1 0 1 1 0 8 0 processpl 1136 481 0 436 5 1 4 4 0 8 0 procpl 680 572 0 506 8 1 7 7 0 8 1 sockpl 488 300 0 274 12 0 12 12 0 8 8 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k 2048 326 0 0 41 0 41 41 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 343 0 0 22 0 22 22 0 8 0 bufpl 288 4204 0 142 291 0 291 291 0 8 0 anonpl 24 195577 0 183154 79 2 77 78 0 186 0 amapchunkpl 152 12832 0 12025 38 2 36 36 0 158 1 amappl16 200 5444 0 5090 20 0 20 20 0 8 0 amappl15 192 20 0 18 1 0 1 1 0 8 0 amappl14 184 161 0 147 2 1 1 2 0 8 0 amappl13 176 26 0 25 1 0 1 1 0 8 0 amappl12 168 1122 0 1092 3 1 2 2 0 8 0 amappl11 160 57 0 43 1 0 1 1 0 8 0 amappl10 152 36 0 24 1 0 1 1 0 8 0 amappl9 144 197 0 196 2 1 1 1 0 8 0 amappl8 136 223 0 169 3 0 3 3 0 8 0 amappl7 128 178 0 154 2 0 2 2 0 8 0 amappl6 120 257 0 247 1 0 1 1 0 8 0 amappl5 112 122 0 109 1 0 1 1 0 8 0 amappl4 104 456 0 427 2 1 1 2 0 8 0 amappl3 96 2890 0 2807 4 1 3 3 0 8 0 amappl2 88 895 0 821 3 1 2 3 0 8 0 amappl1 80 9952 0 9398 23 9 14 23 0 8 1 amappl 88 3488 0 3280 7 1 6 6 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 463 0 437 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 463 0 437 1 0 1 1 0 8 0 vmmpekpl 168 9880 0 9824 4 1 3 3 0 8 0 vmmpepl 168 51917 0 49785 136 1 135 135 0 357 33 vmsppl 448 462 0 437 6 2 4 4 0 8 0 rwobjpl 56 21602 0 18492 47 2 45 47 0 8 0 pdppl 4096 933 0 874 95 28 67 77 0 8 8 pvpl 32 45485 0 0 367 0 367 367 0 265 0 pmappl 248 462 0 437 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 698 0 35 20 0 20 20 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace sys_msgrcv(ffff80002a1dd008,ffff80003598c3e0,ffff80003598c430) at sys_msgrcv+0x2df msg_copyout sys/kern/sysv_msg.c:639 [inline] sys_msgrcv(ffff80002a1dd008,ffff80003598c3e0,ffff80003598c430) at sys_msgrcv+0x2df sys/kern/sysv_msg.c:349 syscall(ffff80003598c4e0) at syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80003598c4e0) at syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5b26ed823c0, count: -3 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029cfbff0) at x86_ipi_db+0x1e 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+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 sys/dev/kcov.c:158 __mp_lock(ffffffff82e76180) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82e76180) at __mp_lock+0x133 sys/kern/kern_lock.c:147 syscall(ffff8000359be840) at syscall+0x5d3 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff8000359be840) at syscall+0x5d3 sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x765c254b9030, count: -7