ziQW[UCLpƾ`h QFI P'{È}_<5,c$O ·a[|^{CR{WJ2&)A XΌ:OKm~ ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic thread 0xffff800020b28018 cannot exit while holding sleeplocks ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic() at panic+0x15c sys/kern/subr_prf.c:207 witness_thread_exit(ffff800020b28018) at witness_thread_exit+0x213 sys/kern/subr_witness.c:1364 reaper(ffff800020aff640) at reaper+0x14c sys/kern/kern_exit.c:423 end trace frame: 0x0, count: -4 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800020afcee0 rbx 0xffff800020afcf90 rdx 0xffff800020aff640 rcx 0 rax 0 r8 0xffffffff816589c3 kprintf+0x173 r9 0x1 r10 0x25 r11 0x284e570ef7b4f8ab r12 0x3000000008 r13 0xffff800020afcef0 r14 0x100 r15 0x1 rip 0xffffffff8156e8c8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020afced0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (reaper) pid=370635 stat=onproc flags process=14000 proc=200 pri=4, usrpri=55, nice=20 forw=0xffffffffffffffff, list=0xffff800020ab1b28,0xffff800020aff160 process=0xffff800020aea708 user=0xffff800020af8000, vmspace=0xffffffff823b48c0 estcpu=5, cpticks=6, pctcpu=0.79 user=0, sys=5, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 50338 500596 66198 0 3 0x82 nanosleep syz-executor.1 12947 447125 1 0 3 0x100083 ttyin getty 63199 443028 0 0 3 0x14200 bored sosplice 4238 493787 66198 0 3 0x82 nanosleep syz-executor.0 66198 487626 73822 0 3 0x82 thrsleep syz-fuzzer 66198 512722 73822 0 3 0x4000082 thrsleep syz-fuzzer 66198 47081 73822 0 3 0x4000082 thrsleep syz-fuzzer 66198 110624 73822 0 3 0x4000082 kqread syz-fuzzer 66198 447773 73822 0 3 0x4000082 thrsleep syz-fuzzer 66198 378058 73822 0 3 0x4000082 thrsleep syz-fuzzer 66198 259735 73822 0 3 0x4000082 thrsleep syz-fuzzer 66198 348871 73822 0 3 0x4000082 thrsleep syz-fuzzer 66198 363641 73822 0 3 0x4000082 thrsleep syz-fuzzer 66198 383797 73822 0 3 0x4000082 thrsleep syz-fuzzer 73822 60901 77772 0 3 0x10008a pause ksh 77772 202287 74795 0 3 0x92 select sshd 74795 440449 1 0 3 0x80 select sshd 46536 259551 40137 74 3 0x100092 bpf pflogd 40137 272459 1 0 3 0x80 netio pflogd 14091 514410 10349 73 7 0x100010 syslogd 10349 249519 1 0 3 0x100082 netio syslogd 65294 283932 1 77 3 0x100090 poll dhclient 12038 468872 1 0 3 0x80 poll dhclient 95256 95967 0 0 3 0x14200 pgzero zerothread 88840 382276 0 0 3 0x14200 aiodoned aiodoned 56328 392815 0 0 3 0x14200 syncer update 62051 250326 0 0 3 0x14200 cleaner cleaner *32489 370635 0 0 7 0x14200 reaper 35894 153415 0 0 3 0x14200 pgdaemon pagedaemon 55386 161156 0 0 3 0x14200 bored crynlk 29595 419090 0 0 3 0x14200 bored crypto 48001 93461 0 0 3 0x40014200 acpi0 acpi0 59065 215475 0 0 3 0x40014200 idle1 42823 62415 0 0 3 0x14200 bored softnet 82144 254640 0 0 3 0x14200 bored systqmp 21564 103875 0 0 3 0x14200 bored systq 9833 508331 0 0 3 0x40014200 bored softclock 31084 366213 0 0 3 0x40014200 idle0 7902 417362 0 0 3 0x14200 bored smr 1 88804 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 14091 (syslogd) thread 0xffff800020b60778 (514410) exclusive rrwlock inode r = 0 (0xfffffd807412fc48) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 rw_enter+0x46d sys/kern/kern_rwlock.c:306 #2 rrw_enter+0x4f sys/kern/kern_rwlock.c:435 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:602 #4 vn_lock+0x6e sys/kern/vfs_vnops.c:561 #5 sys_fsync+0x114 sys/kern/vfs_syscalls.c:2806 #6 syscall+0x552 mi_syscall sys/sys/syscall_mi.h:92 [inline] #6 syscall+0x552 sys/arch/amd64/amd64/trap.c:555 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9601 6587K 14971K 78643K 22192 0 0 pcb 13 8K 8K 78643K 321 0 0 rtable 111 4K 5K 78643K 1089 0 0 ifaddr 81 19K 21K 78643K 537 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1698 0 0 iov 0 0K 24K 78643K 539 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1204 76K 77K 78643K 5254 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 66 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 0K 78643K 466 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 4 9K 25K 78643K 4432 0 0 sigio 2 0K 0K 78643K 86 0 0 proc 54 51K 83K 78643K 998 0 0 subproc 32 2K 2K 78643K 53 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 451 0 0 in_multi 33 2K 2K 78643K 189 0 0 ether_multi 1 0K 0K 78643K 26 0 0 mrt 0 0K 0K 78643K 23 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 96 424K 424K 78643K 96 0 0 exec 0 0K 1K 78643K 655 0 0 pfkey data 0 0K 0K 78643K 2 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 102 21K 30K 78643K 15643 0 0 UVM aobj 130 4K 4K 78643K 145 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 228 0 0 NDP 19 0K 0K 78643K 146 0 0 temp 221 2752K 2880K 78643K 17263 0 0 kqueue 0 0K 0K 78643K 33 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 8 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 161 0 159 1 0 1 1 0 8 0 rtentry 112 61 0 17 2 0 2 2 0 8 0 unpcb 120 1510 0 1500 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 7979 0 7979 1 1 0 1 0 8 0 tcpcb 544 733 0 729 1 0 1 1 0 8 0 inpcb 280 2061 0 2054 4 3 1 2 0 8 0 rttmr 72 5 0 5 4 4 0 1 0 8 0 nd6 48 9 0 3 1 0 1 1 0 8 0 pkpcb 40 38 0 38 10 9 1 1 0 8 1 ppxss 1128 101 0 101 12 11 1 1 0 8 1 pffrag 232 9 0 9 6 6 0 1 0 482 0 pffrnode 88 9 0 9 6 6 0 1 0 8 0 pffrent 40 23 0 23 6 6 0 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 88 0 70 1 0 1 1 0 8 0 pfstkey 112 88 0 70 1 0 1 1 0 8 0 pfstate 328 88 0 70 2 0 2 2 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 256 265 0 73 14 2 12 13 0 8 0 art_table 32 266 0 73 2 0 2 2 0 8 0 art_node 16 60 0 20 1 0 1 1 0 8 0 sysvmsgpl 40 23 0 17 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 464 0 454 1 0 1 1 0 8 0 shmpl 112 143 0 15 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 8620 0 7213 47 0 47 47 0 8 0 ffsino 272 8620 0 7213 96 0 96 96 0 8 0 nchpl 144 15213 0 13577 62 0 62 62 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 200 5926 0 0 312 0 312 312 0 8 0 namei 1024 49720 0 49720 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 8 0 8 4 4 0 1 0 8 0 scxspl 192 47181 0 47181 35 34 1 6 0 8 1 plimitpl 152 425 0 417 1 0 1 1 0 8 0 sigapl 432 4632 0 4618 3 1 2 3 0 8 0 futexpl 56 56210 0 56210 1 0 1 1 0 8 1 knotepl 112 839 0 820 1 0 1 1 0 8 0 kqueuepl 104 1041 0 1039 1 0 1 1 0 8 0 pipepl 112 2582 0 2563 6 4 2 2 0 8 1 fdescpl 488 4633 0 4618 3 0 3 3 0 8 0 filepl 152 28448 0 28349 10 5 5 7 0 8 0 lockfpl 104 1435 0 1435 2 1 1 1 0 8 1 lockfspl 48 501 0 501 2 1 1 1 0 8 1 sessionpl 112 22 0 11 1 0 1 1 0 8 0 pgrppl 48 94 0 83 1 0 1 1 0 8 0 ucredpl 96 6247 0 6238 1 0 1 1 0 8 0 zombiepl 144 4618 0 4616 2 1 1 1 0 8 0 processpl 896 4649 0 4616 4 0 4 4 0 8 0 procpl 632 14706 0 14662 9 4 5 5 0 8 1 srpgc 64 7 0 7 5 5 0 1 0 8 0 sosppl 128 45 0 45 10 10 0 1 0 8 0 sockpl 384 3797 0 3778 8 4 4 4 0 8 2 mcl64k 65536 273 0 0 35 11 24 35 0 8 1 mcl16k 16384 9 0 0 2 0 2 2 0 8 0 mcl12k 12288 27 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 15 0 0 2 0 2 2 0 8 0 mcl4k 4096 18 0 0 3 0 3 3 0 8 0 mcl2k2 2112 13 0 0 1 0 1 1 0 8 0 mcl2k 2048 141 0 0 17 0 17 17 0 8 0 mtagpl 80 54 0 0 2 0 2 2 0 8 0 mbufpl 256 496 0 0 26 0 26 26 0 8 0 bufpl 256 19435 0 12406 440 0 440 440 0 8 0 anonpl 16 407335 0 395482 156 98 58 66 0 125 5 amapchunkpl 152 26551 0 26430 29 23 6 10 0 158 0 amappl16 192 21516 0 20864 143 107 36 46 0 8 3 amappl15 184 2060 0 2059 1 0 1 1 0 8 0 amappl14 176 2115 0 2110 1 0 1 1 0 8 0 amappl13 168 147 0 145 2 1 1 1 0 8 0 amappl12 160 7 0 5 1 0 1 1 0 8 0 amappl11 152 67 0 52 1 0 1 1 0 8 0 amappl10 144 2268 0 2260 1 0 1 1 0 8 0 amappl9 136 614 0 611 1 0 1 1 0 8 0 amappl8 128 161 0 141 1 0 1 1 0 8 0 amappl7 120 2229 0 2222 1 0 1 1 0 8 0 amappl6 112 60 0 52 1 0 1 1 0 8 0 amappl5 104 179 0 164 1 0 1 1 0 8 0 amappl4 96 2884 0 2850 2 1 1 2 0 8 0 amappl3 88 4444 0 4433 1 0 1 1 0 8 0 amappl2 80 36654 0 36571 3 1 2 3 0 8 0 amappl1 72 107743 0 107274 27 17 10 20 0 8 0 amappl 80 14979 0 14935 5 3 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma64 64 259 0 259 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 144 0 15 3 0 3 3 0 8 0 uaddrrnd 24 4633 0 4616 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4633 0 4616 1 0 1 1 0 8 0 vmmpekpl 168 41268 0 41242 2 0 2 2 0 8 0 vmmpepl 168 564140 0 562230 198 110 88 101 0 357 4 vmsppl 368 4632 0 4616 2 0 2 2 0 8 0 pdppl 4096 9273 0 9232 7 1 6 6 0 8 0 pvpl 32 1135224 0 1120063 313 162 151 167 0 265 21 pmappl 232 4632 0 4616 2 1 1 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 655 0 18 19 0 19 19 0 8 0