panic: kernel diagnostic assertion "map->limit == rtmap_limit" failed: file "/syzkaller/managers/multicore/kernel/sys/net/rtable.c", line 132 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *198932 43877 0 0 0x4000000 0K syz-executor 458253 318 0 0x2 0 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834bc943) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff834fc79f,ffffffff834fafda,84,ffffffff8355508c) at __assert+0x29 sys/kern/subr_prf.c:-1 rtmap_grow(cf,21) at rtmap_grow+0x24f rtable_add(ce) at rtable_add+0x2d9 rtable_alloc sys/net/rtable.c:370 [inline] rtable_add(ce) at rtable_add+0x2d9 sys/net/rtable.c:223 if_createrdomain(ce,ffff800001607000) at if_createrdomain+0x40 sys/net/if.c:2046 ifioctl(ffff800010fde8d8,8020699f,ffff80003c411f50,ffff80002a223768) at ifioctl+0x1c52 sys/net/if.c:2395 sys_ioctl(ffff80002a223768,ffff80003c412130,ffff80003c412080) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c412130) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c412130) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xccdbe29bff0, count: 5 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: kernel diagnostic assertion "map->limit == rtmap_limit" failed: file "/syzkaller/managers/multicore/kernel/sys/net/rtable.c", line 132 ddb{0}> show kasan No such command ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834bc943) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff834fc79f,ffffffff834fafda,84,ffffffff8355508c) at __assert+0x29 sys/kern/subr_prf.c:-1 rtmap_grow(cf,21) at rtmap_grow+0x24f rtable_add(ce) at rtable_add+0x2d9 rtable_alloc sys/net/rtable.c:370 [inline] rtable_add(ce) at rtable_add+0x2d9 sys/net/rtable.c:223 if_createrdomain(ce,ffff800001607000) at if_createrdomain+0x40 sys/net/if.c:2046 ifioctl(ffff800010fde8d8,8020699f,ffff80003c411f50,ffff80002a223768) at ifioctl+0x1c52 sys/net/if.c:2395 sys_ioctl(ffff80002a223768,ffff80003c412130,ffff80003c412080) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c412130) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c412130) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xccdbe29bff0, count: -10 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c411c60 rbx 0xffffffff8393ee07 cpu_info_full_primary+0x2e07 rdx 0 rcx 0xffff80002a223768 rax 0xffffffff8393dff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xafff35d84bcdeb3b r11 0xb3191f2700272139 r12 0xffffffff8393ec08 cpu_info_full_primary+0x2c08 r13 0 r14 0 r15 0x1 rip 0xffffffff82d62675 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c411c50 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=198932 pid=43877 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=50, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a222fa0,0xffff800039ba82d0 process=0xffff800045ff0010 user=0xffff80003c40d000, vmspace=0xffffef806cef35d8 estcpu=36, cpticks=3, pctcpu=0.0, user=0, sys=3, intr=0 ddb{0}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 43877 127717 18139 0 3 0 0x80 fsleep syz-executor *43877 198932 18139 0 7 0 0x4000000 syz-executor 43877 332831 18139 0 2 0 0x4000000 syz-executor 43877 251797 18139 0 3 0 0x4000080 fsleep syz-executor 13441 385544 14348 0 2 0 0 syz-executor 13441 265714 14348 0 3 0 0x4000080 fsleep syz-executor 58243 14871 1 0 3 0x2 0x80 nanoslp getty 67739 27983 79820 0 3 0 0x80 fsleep syz-executor 67739 271301 79820 0 2 0 0x4000000 syz-executor 32022 404730 67732 0 2 0 0 syz-executor 32022 266955 67732 0 3 0 0x4000080 fsleep syz-executor 32022 23536 67732 0 3 0 0x4000080 fsleep syz-executor 10520 462766 91552 0 2 0 0xc80 syz-executor 10520 268929 91552 0 3 0 0x4000080 fifor syz-executor 10520 462946 91552 0 3 0 0x4000080 fsleep syz-executor 10520 164891 91552 0 3 0 0x4000080 fsleep syz-executor 27295 427971 24427 0 2 0 0 syz-executor 27295 185594 24427 0 3 0 0x4000080 kqsel syz-executor 27295 438958 24427 0 3 0 0x4000080 fsleep syz-executor 27295 359600 24427 0 3 0 0x4000080 fsleep syz-executor 25863 452185 72271 0 2 0 0x1 syz-executor 25863 18597 72271 0 2 0 0x4000001 syz-executor 25863 10425 72271 0 3 0 0x4000080 fsleep syz-executor 24427 143683 27214 0 2 0x2 0xc80 syz-executor 67732 382068 27214 0 2 0x2 0xc80 syz-executor 79820 403809 27214 0 2 0x2 0x1 syz-executor 318 458253 27214 0 7 0x2 0 syz-executor 18139 185823 27214 0 2 0x2 0xc80 syz-executor 72271 433486 27214 0 2 0x2 0xc80 syz-executor 14348 173707 27214 0 2 0x2 0xc80 syz-executor 91552 142420 27214 0 2 0x2 0xc80 syz-executor 27214 432849 1 0 3 0x2 0x80 kqread syz-executor 73503 211811 0 0 3 0x14000 0x200 bored smr 27799 143906 0 0 3 0x14000 0x200 pgzero zerothread 82927 117611 0 0 3 0x14000 0x200 aiodoned aiodoned 70788 476438 0 0 3 0x14000 0x200 syncer update 87967 278627 0 0 3 0x14000 0x200 cleaner cleaner 63226 501487 0 0 3 0x14000 0x200 reaper reaper 37436 183606 0 0 3 0x14000 0x200 pgdaemon pagedaemon 91657 25670 0 0 3 0x14000 0x200 bored viomb 21887 179769 0 0 3 0x14000 0x40000200 acpi0 acpi0 76043 195013 0 0 3 0x14000 0x40000200 idle1 96321 467179 0 0 3 0x14000 0x200 bored softnet1 28752 485046 0 0 3 0x14000 0x200 bored softnet0 21792 119094 0 0 3 0x14000 0x200 bored systqmp 80793 487994 0 0 3 0x14000 0x200 bored systq 65718 152380 0 0 3 0x14000 0x200 tmoslp softclockmp 41142 136421 0 0 3 0x14000 0x40000200 tmoslp softclock 22026 20178 0 0 3 0x14000 0x40000200 idle0 1 144836 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{0}> show all locks Process 43877 (syz-executor) thread 0xffff80002a223768 (198932) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff83abe180) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 malloc+0xe3 sys/kern/kern_malloc.c:175 #3 rtmap_grow+0xb2 sys/net/rtable.c:127 #4 rtable_add+0x2d9 rtable_alloc sys/net/rtable.c:370 [inline] #4 rtable_add+0x2d9 sys/net/rtable.c:223 #5 if_createrdomain+0x40 sys/net/if.c:2046 #6 ifioctl+0x1c52 sys/net/if.c:2395 #7 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 Process 67739 (syz-executor) thread 0xffff800039ba8d20 (271301) exclusive rrwlock inode r = 0 (0xffffef8060edbc58) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576 #5 vn_write+0x18f sys/kern/vfs_vnops.c:411 #6 dofilewritev+0x2bd sys/kern/sys_generic.c:384 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 Process 318 (syz-executor) thread 0xffff80002a221a08 (458253) exclusive rrwlock inode r = 0 (0xffffef80708835b8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576 #5 vget+0x2a2 sys/kern/vfs_subr.c:692 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x963 sys/kern/vfs_lookup.c:580 #11 namei+0x7c5 sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1807 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xffffef806d8b40b8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576 #5 vfs_lookup+0x12b sys/kern/vfs_lookup.c:431 #6 namei+0x7c5 sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1807 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11056 12161K 12225K 166960K 12208 0 pcb 21 12K 12K 166960K 29 0 rtable 241 10K 10K 166960K 358 0 pf 34 17K 18K 166960K 45 0 ifaddr 43 7K 7K 166960K 45 0 ifgroup 55 2K 2K 166960K 55 0 sysctl 1 1K 9K 166960K 5 0 counters 70 37K 37K 166960K 70 0 ioctlops 0 0K 4K 166960K 1516 0 iov 0 0K 12K 166960K 1 0 mount 1 1K 1K 166960K 1 0 log 1 0K 0K 166960K 5 0 vnodes 1295 81K 82K 166960K 1375 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 5 0K 0K 166960K 6 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 16 61K 85K 166960K 160 0 sigio 0 0K 0K 166960K 1 0 proc 20 33K 164K 166960K 562 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 1 0 in_multi 99 6K 6K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 387 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 139 82K 177K 166960K 3344 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 19 38K 104K 166960K 1320 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 12 0K 1K 166960K 28 0 temp 34 9114K 9154K 166960K 5888 0 kqueue 2 4K 22K 166960K 31 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 28 0 0 1 0 1 1 0 8 0 rtpcb 120 38 0 36 1 0 1 1 0 8 0 rtentry 176 111 0 1 5 0 5 5 0 8 0 unpcb 144 50 0 47 1 0 1 1 0 8 0 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpcb 736 13 0 12 1 0 1 1 0 8 0 arp 136 18 0 0 1 0 1 1 0 8 0 inpcb 328 86 0 79 2 0 2 2 0 8 0 nd6 152 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 20 0 0 1 0 1 1 0 8 0 pfstkey 128 20 0 0 1 0 1 1 0 8 0 pfstate 448 20 0 0 3 0 3 3 0 8 0 pfrule 1360 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 40 454 0 0 5 0 5 5 0 8 0 art_node 32 111 0 11 1 0 1 1 0 8 0 semapl 72 4 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1616 0 136 93 0 93 93 0 8 0 ffsino 296 1616 0 136 115 0 115 115 0 8 0 nchpl 144 1841 0 135 64 0 64 64 0 8 0 vnodes 216 1713 0 0 96 0 96 96 0 8 0 namei 1024 5699 0 5699 3 1 2 3 0 8 2 percpumem 16 51 0 0 1 0 1 1 0 8 0 kstatmem 264 27 0 0 2 0 2 2 0 8 0 scxspl 216 8018 0 8018 4 3 1 3 1 8 1 plimitpl 152 33 0 21 1 0 1 1 0 8 0 sigapl 424 478 0 443 6 0 6 6 0 8 0 knotepl 120 302 0 0 10 0 10 10 0 8 0 kqueuepl 224 30 0 27 1 0 1 1 0 8 0 pipepl 344 195 0 103 9 0 9 9 0 8 0 fdescpl 528 462 0 443 3 0 3 3 0 8 0 filepl 160 1870 0 1560 15 0 15 15 0 8 0 lockfpl 104 14 0 14 1 0 1 1 0 8 1 lockfspl 48 7 0 7 1 0 1 1 0 8 1 sessionpl 144 24 0 22 1 0 1 1 0 8 0 pgrppl 48 32 0 22 1 0 1 1 0 8 0 ucredpl 104 125 0 122 1 0 1 1 0 8 0 zombiepl 144 446 0 446 1 0 1 1 0 8 1 processpl 1232 478 0 443 5 1 4 5 0 8 0 procpl 664 523 0 473 6 0 6 6 0 8 0 sockpl 752 177 0 164 4 1 3 4 0 8 0 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 116 0 0 15 0 15 15 0 8 0 mcl2k 2048 18 0 0 3 0 3 3 0 8 0 mextrefs 64 18 0 0 1 0 1 1 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 161 0 0 11 0 11 11 0 8 0 bufpl 272 3913 0 105 254 0 254 254 0 8 0 anonpl 32 6224 0 0 51 0 51 51 0 247 0 amapchunkpl 152 9154 0 8765 25 7 18 25 0 158 0 amappl16 200 1522 0 1496 5 3 2 5 0 8 0 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 430 0 430 1 1 0 1 0 8 0 amappl13 176 170 0 169 2 1 1 1 0 8 0 amappl12 168 714 0 696 2 0 2 2 0 8 0 amappl11 160 5 0 4 1 0 1 1 0 8 0 amappl10 152 64 0 64 1 1 0 1 0 8 0 amappl9 144 273 0 273 1 1 0 1 0 8 0 amappl8 136 99 0 99 1 1 0 1 0 8 0 amappl7 128 146 0 144 1 0 1 1 0 8 0 amappl6 120 157 0 156 2 1 1 1 0 8 0 amappl5 112 99 0 99 1 1 0 1 0 8 0 amappl4 104 298 0 295 1 0 1 1 0 8 0 amappl3 96 1582 0 1517 3 1 2 3 0 8 0 amappl2 88 582 0 559 2 0 2 2 0 8 0 amappl1 80 10548 0 10429 15 6 9 15 0 8 1 amappl 88 2564 0 2439 4 0 4 4 0 92 0 uvmvnodes 80 98 0 0 2 0 2 2 0 8 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 24 462 0 443 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 462 0 443 1 0 1 1 0 8 0 vmmpekpl 168 5960 0 5921 3 0 3 3 0 8 0 vmmpepl 168 38962 0 38100 88 46 42 88 0 357 0 vmsppl 488 461 0 443 5 0 5 5 0 8 0 rwobjpl 80 14500 0 14071 25 3 22 25 0 8 0 pdppl 4096 931 0 886 93 38 55 81 0 8 10 pvpl 32 10352 0 0 84 0 84 84 0 265 0 pmappl 256 461 0 443 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 521 0 43 15 0 15 15 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:438 panic(ffffffff834bc943) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff834fc79f,ffffffff834fafda,84,ffffffff8355508c) at __assert+0x29 sys/kern/subr_prf.c:-1 rtmap_grow(cf,21) at rtmap_grow+0x24f rtable_add(ce) at rtable_add+0x2d9 rtable_alloc sys/net/rtable.c:370 [inline] rtable_add(ce) at rtable_add+0x2d9 sys/net/rtable.c:223 if_createrdomain(ce,ffff800001607000) at if_createrdomain+0x40 sys/net/if.c:2046 ifioctl(ffff800010fde8d8,8020699f,ffff80003c411f50,ffff80002a223768) at ifioctl+0x1c52 sys/net/if.c:2395 sys_ioctl(ffff80002a223768,ffff80003c412130,ffff80003c412080) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c412130) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c412130) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xccdbe29bff0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff80002999dff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 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+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff83abd980) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83abd980) at __mp_lock+0x1a3 sys/kern/kern_lock.c:173 __mp_acquire_count(ffffffff83abd980,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:369 biowait(ffffef806db429a0) at biowait+0xc6 sys/kern/vfs_bio.c:1110 bwrite(ffffef806db429a0) at bwrite+0x359 sys/kern/vfs_bio.c:625 ffs_update(ffffef8070883518,1) at ffs_update+0x2fe sys/ufs/ffs/ffs_inode.c:111 ffs_truncate(ffffef8070883518,0,4,ffffef80097fd410) at ffs_truncate+0xc9b sys/ufs/ffs/ffs_inode.c:-1 ufs_rmdir(ffff80002a322470) at ufs_rmdir+0x2f1 sys/ufs/ufs/ufs_vnops.c:1265 VOP_RMDIR(ffffef806d69a118,ffffef80708e0b10,ffff80002a322548) at VOP_RMDIR+0x192 sys/kern/vfs_vops.c:413 dounlinkat(ffff80002a221a08,ffffff9c,7395ffb6a980,8) at dounlinkat+0x2e0 sys/kern/vfs_syscalls.c:1840 end trace frame: 0xffff80002a3226b0, count: 0 ddb{1}> trace x86_ipi_db(ffff80002999dff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 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+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff83abd980) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83abd980) at __mp_lock+0x1a3 sys/kern/kern_lock.c:173 __mp_acquire_count(ffffffff83abd980,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:369 biowait(ffffef806db429a0) at biowait+0xc6 sys/kern/vfs_bio.c:1110 bwrite(ffffef806db429a0) at bwrite+0x359 sys/kern/vfs_bio.c:625 ffs_update(ffffef8070883518,1) at ffs_update+0x2fe sys/ufs/ffs/ffs_inode.c:111 ffs_truncate(ffffef8070883518,0,4,ffffef80097fd410) at ffs_truncate+0xc9b sys/ufs/ffs/ffs_inode.c:-1 ufs_rmdir(ffff80002a322470) at ufs_rmdir+0x2f1 sys/ufs/ufs/ufs_vnops.c:1265 VOP_RMDIR(ffffef806d69a118,ffffef80708e0b10,ffff80002a322548) at VOP_RMDIR+0x192 sys/kern/vfs_vops.c:413 dounlinkat(ffff80002a221a08,ffffff9c,7395ffb6a980,8) at dounlinkat+0x2e0 sys/kern/vfs_syscalls.c:1840 syscall(ffff80002a3226c0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3226c0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7395ffb6a970, count: -16 ddb{1}>