kernel: protection fault trap, code=0 Stopped at __x86_indirect_thunk_r11+0x14: ret ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace __x86_indirect_thunk_r11() at __x86_indirect_thunk_r11+0x14 softclock_thread(ffff80002a57d540) at softclock_thread+0xc4 sys/kern/kern_timeout.c:814 end trace frame: 0x0, count: -2 ddb> show registers rdi 0xdeaf4152deaf4152 rsi 0 rbp 0xffff80002a589230 rbx 0 rdx 0 rcx 0xffffffff82dda180 timeout_proc rax 0x9 r8 0x7f7fffffc000 r9 0 r10 0x4343e68f485123c7 r11 0xdeaf4152deaf4152 r12 0xdeaf4152deaf4152 r13 0xffffffff82d28ff0 cpu_info_full_primary+0x1ff0 r14 0xffff8000ffffe180 r15 0xdeaf4152deaf4152 rip 0xffffffff82595314 __x86_indirect_thunk_r11+0x14 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a5891f0 ss 0x10 __x86_indirect_thunk_r11+0x14: ret ddb> show proc PROC (softclock) tid=356978 pid=88966 tcnt=1 stat=onproc flags process=14000 proc=40000200 runpri=50, usrpri=50, slppri=0, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a57d7e8,0xffff80002a57d2a8 process=0xffff8000ffffe180 user=0xffff80002a584000, vmspace=0xffffffff82e496d8 estcpu=0, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 86843 262130 82387 0 3 0x80 fsleep syz-executor.1 86843 84442 82387 0 2 0x4000000 syz-executor.1 56612 110273 60395 0 3 0x80 fsleep syz-executor.7 56612 175652 60395 0 2 0x4000000 syz-executor.7 70952 430417 40068 0 3 0x80 fsleep syz-executor.4 70952 330370 40068 0 2 0x4000000 syz-executor.4 50478 507680 35773 0 3 0x80 fsleep syz-executor.6 50478 42039 35773 0 2 0x4000000 syz-executor.6 3818 348028 48621 0 3 0x80 fsleep syz-executor.3 3818 367587 48621 0 2 0x4000000 syz-executor.3 52098 91590 29035 0 3 0x80 fsleep syz-executor.2 52098 423997 29035 0 2 0x4000000 syz-executor.2 75228 415838 77195 0 3 0x80 fsleep syz-executor.0 75228 4134 77195 0 3 0x4000080 netio syz-executor.0 35773 259945 40586 0 2 0x482 syz-executor.6 77195 165000 40586 0 2 0x482 syz-executor.0 40068 373519 40586 0 2 0x482 syz-executor.4 58139 275904 1 0 3 0x100083 ttyin getty 48621 85187 40586 0 2 0x482 syz-executor.3 82387 329448 40586 0 2 0x482 syz-executor.1 29035 469023 40586 0 2 0x482 syz-executor.2 73631 180344 0 0 3 0x14200 acct acct 60395 268699 40586 0 2 0x482 syz-executor.7 71817 165774 0 0 3 0x14280 nfsidl nfsio 87416 394383 0 0 3 0x14280 nfsidl nfsio 94880 124506 0 0 3 0x14280 nfsidl nfsio 352 399888 0 0 3 0x14280 nfsidl nfsio 54782 388949 0 0 3 0x14280 nfsidl nfsio 4933 156129 0 0 3 0x14280 nfsidl nfsio 9720 16615 0 0 3 0x14280 nfsidl nfsio 75453 374170 0 0 3 0x14280 nfsidl nfsio 19499 131068 0 0 3 0x14280 nfsidl nfsio 63065 18001 0 0 3 0x14280 nfsidl nfsio 21667 501322 0 0 3 0x14280 nfsidl nfsio 73036 352520 0 0 3 0x14280 nfsidl nfsio 71729 223098 0 0 3 0x14280 nfsidl nfsio 11845 431057 0 0 3 0x14280 nfsidl nfsio 43091 195173 0 0 3 0x14280 nfsidl nfsio 53272 508744 0 0 3 0x14280 nfsidl nfsio 67002 103748 0 0 3 0x14280 nfsidl nfsio 740 122930 0 0 3 0x14280 nfsidl nfsio 31406 513829 0 0 3 0x14280 nfsidl nfsio 41736 363733 0 0 3 0x14280 nfsidl nfsio 66304 423183 0 0 3 0x14200 bored sosplice 40586 228977 77497 0 3 0x2000082 wait syz-fuzzer 40586 497858 77497 0 3 0x6000082 nanoslp syz-fuzzer 40586 94210 77497 0 3 0x6000082 wait syz-fuzzer 40586 319857 77497 0 3 0x6000002 getblk syz-fuzzer 40586 337382 77497 0 3 0x6000082 thrsleep syz-fuzzer 40586 13433 77497 0 3 0x6000082 wait syz-fuzzer 40586 244715 77497 0 3 0x6000082 thrsleep syz-fuzzer 40586 23582 77497 0 3 0x6000082 thrsleep syz-fuzzer 40586 83525 77497 0 3 0x6000082 wait syz-fuzzer 40586 322180 77497 0 3 0x6000082 wait syz-fuzzer 40586 457251 77497 0 3 0x6000082 thrsleep syz-fuzzer 40586 503008 77497 0 3 0x6000082 thrsleep syz-fuzzer 40586 306811 77497 0 3 0x6000082 wait syz-fuzzer 40586 390392 77497 0 3 0x6000082 wait syz-fuzzer 40586 286557 77497 0 3 0x6000082 thrsleep syz-fuzzer 77497 314946 97461 0 3 0x10008a sigsusp ksh 97461 166506 40056 0 3 0x9a kqread sshd 40056 453427 1 0 3 0x88 kqread sshd 94851 155310 78742 73 3 0x1100090 kqread syslogd 78742 462357 1 0 3 0x100082 netio syslogd 20509 363888 1 0 3 0x100080 kqread resolvd 4279 156894 31320 77 3 0x100092 kqread dhcpleased 27993 19659 31320 77 3 0x100092 kqread dhcpleased 31320 358356 1 0 3 0x80 kqread dhcpleased 16448 109462 0 0 3 0x14200 bored smr 99700 63501 0 0 2 0x14200 zerothread 73165 256423 0 0 3 0x14200 aiodoned aiodoned 26834 166041 0 0 3 0x14200 syncer update 45776 79452 0 0 3 0x14200 cleaner cleaner 90556 154226 0 0 3 0x14200 reaper reaper 28876 219704 0 0 3 0x14200 pgdaemon pagedaemon 5824 6965 0 0 3 0x14200 bored viomb 315 288664 0 0 3 0x40014200 acpi0 acpi0 11010 206010 0 0 3 0x14200 bored softnet3 9571 234706 0 0 3 0x14200 bored softnet2 91579 342326 0 0 3 0x14200 bored softnet1 6787 215398 0 0 3 0x14200 bored softnet0 27701 447970 0 0 3 0x14200 bored systqmp 43951 116131 0 0 3 0x14200 bored systq *88966 356978 0 0 7 0x40014200 softclock 93364 288835 0 0 3 0x40014200 idle0 1 192765 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10196 6409K 7570K 166960K 28127 0 pcb 15 24K 26K 166960K 828 0 rtable 204 14K 15K 166960K 1763 0 pf 27 8K 9K 166960K 280 0 ifaddr 37 11K 12K 166960K 248 0 ifgroup 46 2K 2K 166960K 443 0 sysctl 4 1K 1K 166960K 8 0 counters 29 17K 17K 166960K 139 0 ioctlops 0 0K 2K 166960K 517 0 iov 0 0K 34K 166960K 1026 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1449 91K 91K 166960K 7112 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 98 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 1377 0 dirhash 12 2K 2K 166960K 96 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 16 57K 73K 166960K 9181 0 sigio 0 0K 0K 166960K 180 0 proc 64 59K 75K 166960K 1655 0 subproc 91 5K 7K 166960K 468 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 381 0 in_multi 77 5K 7K 166960K 479 0 ether_multi 1 0K 0K 166960K 4 0 mrt 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 1938 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 427 363K 390K 166960K 88312 0 UVM aobj 131 4K 4K 166960K 139 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 403 0 NDP 10 0K 2K 166960K 192 0 temp 70 6763K 6892K 166960K 65348 0 kqueue 12 18K 28K 166960K 712 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 315 0 312 3 1 2 2 0 8 1 rtentry 112 560 0 468 5 1 4 4 0 8 0 unpcb 144 6196 0 6183 18 10 8 8 0 8 7 syncache 336 92 0 92 3 2 1 1 0 8 1 sackhl 24 1 0 1 1 0 1 1 0 8 1 tcpqe 32 304 0 304 2 1 1 1 0 8 1 tcpcb 808 3044 0 3039 36 28 8 20 0 8 7 arp 88 99 0 84 1 0 1 1 0 8 0 ipq 40 6 0 5 2 1 1 1 0 8 0 ipqe 40 215 0 214 2 1 1 1 0 8 0 inpcb 360 7744 0 7734 68 59 9 23 0 8 7 nd6 104 112 0 93 1 0 1 1 0 8 0 pkpcb 40 23 0 23 3 2 1 1 0 8 1 kcovpl 48 36 0 29 1 0 1 1 0 8 0 ppxss 1072 38 0 38 2 1 1 1 0 8 1 rttmr 136 1 0 1 1 0 1 1 0 8 1 pool(rttmr): free list modified: page 0xfffffd80680f3000; item ordinal 0; addr 0xfffffd80680f3dd0 (p 0xfffffd80680f3000); offset 0x10=0xffffffff art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2053 0 1674 37 9 28 30 0 8 4 art_table 32 2054 0 1674 4 0 4 4 0 8 0 art_node 16 553 0 470 1 0 1 1 0 8 0 sysvmsgpl 40 32 0 18 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 1375 0 1365 1 0 1 1 0 8 0 shmpl 112 136 0 8 4 0 4 4 0 8 0 dirhash 1024 73 0 56 3 0 3 3 0 8 0 dino2pl 256 13949 0 12487 92 0 92 92 0 8 0 ffsino 240 13950 0 12487 87 0 87 87 0 8 0 nchpl 144 26302 0 24670 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 91118 0 91116 5 3 2 2 0 8 1 vcpupl 2048 42 0 1 6 0 6 6 0 8 0 vmpool 664 57 0 16 4 0 4 4 0 8 0 kstatmem 264 240 0 220 2 0 2 2 0 8 0 scxspl 216 75748 0 75748 11 7 4 8 1 8 4 plimitpl 152 1545 0 1531 1 0 1 1 0 8 0 sigapl 424 9459 0 9394 8 0 8 8 0 8 0 futexpl 64 82815 0 82808 1 0 1 1 0 8 0 knotepl 120 93878 0 93802 29 18 11 16 0 8 5 kqueuepl 184 1298 0 1289 6 3 3 4 0 8 2 pipepl 288 1749 0 1724 15 8 7 8 0 8 4 fdescpl 432 9414 0 9387 4 0 4 4 0 8 0 filepl 120 58914 0 58696 29 15 14 19 0 8 6 lockfpl 104 2701 0 2699 4 2 2 2 0 8 1 lockfspl 48 1121 0 1119 1 0 1 1 0 8 0 sessionpl 144 58 0 43 1 0 1 1 0 8 0 pgrppl 48 251 0 236 1 0 1 1 0 8 0 ucredpl 104 9793 0 9780 1 0 1 1 0 8 0 zombiepl 144 9394 0 9394 1 0 1 1 0 8 1 processpl 1072 9459 0 9394 5 0 5 5 0 8 0 procpl 680 24454 0 24368 12 2 10 10 0 8 1 sosppl 168 97 0 97 2 1 1 1 0 8 1 sockpl 488 14289 0 14263 291 279 12 48 0 8 8 mcl64k 65536 362 0 362 3 2 1 1 0 8 1 mcl16k 16384 203 0 203 3 2 1 1 0 8 1 mcl12k 12288 326 0 326 3 2 1 1 0 8 1 mcl9k 9216 172 0 172 3 2 1 1 0 8 1 mcl8k 8192 701 0 701 2 1 1 1 0 8 1 mcl4k 4096 969 0 969 3 2 1 1 0 8 1 mcl2k2 2112 51 0 51 3 2 1 1 0 8 1 mcl2k 2048 90960 0 90914 47 33 14 29 0 8 7 mtagpl 96 1510 0 1498 13 3 10 12 0 8 8 mbufpl 256 237168 0 237069 194 173 21 85 0 8 8 bufpl 280 18906 0 12514 457 0 457 457 0 8 0 anonpl 24 1031427 0 1019295 139 17 122 122 0 188 24 amapchunkpl 152 281239 0 280383 57 9 48 48 0 158 11 amappl16 200 21480 0 21005 70 36 34 38 0 8 8 amappl15 192 57 0 55 1 0 1 1 0 8 0 amappl14 184 256 0 244 2 1 1 2 0 8 0 amappl13 176 43 0 41 1 0 1 1 0 8 0 amappl12 168 10466 0 10436 2 0 2 2 0 8 0 amappl11 160 50 0 40 1 0 1 1 0 8 0 amappl10 152 54 0 47 1 0 1 1 0 8 0 amappl9 144 207 0 207 3 2 1 1 0 8 1 amappl8 136 442 0 354 4 0 4 4 0 8 0 amappl7 128 248 0 225 2 0 2 2 0 8 0 amappl6 120 706 0 693 1 0 1 1 0 8 0 amappl5 112 290 0 282 1 0 1 1 0 8 0 amappl4 104 777 0 750 2 1 1 2 0 8 0 amappl3 96 55111 0 55018 3 0 3 3 0 8 0 amappl2 88 10339 0 10265 3 1 2 3 0 8 0 amappl1 80 43426 0 42919 22 10 12 22 0 8 0 amappl 88 87315 0 87066 7 0 7 7 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 9471 0 9403 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 9471 0 9403 1 0 1 1 0 8 0 vmmpekpl 168 72745 0 72672 4 0 4 4 0 8 0 vmmpepl 168 573601 0 571257 174 39 135 135 0 357 21 vmsppl 352 9470 0 9403 7 0 7 7 0 8 0 rwobjpl 24 143882 0 136299 48 0 48 48 0 8 0 pdppl 4096 18948 0 18847 640 537 103 105 0 8 2 pvpl 32 2640550 0 2622741 386 173 213 335 0 265 35 pmappl 216 9470 0 9403 4 0 4 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1192 0 804 13 0 13 13 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace __x86_indirect_thunk_r11() at __x86_indirect_thunk_r11+0x14 softclock_thread(ffff80002a57d540) at softclock_thread+0xc4 sys/kern/kern_timeout.c:814 end trace frame: 0x0, count: -2 ddb> machine ddbcpu 1 No such command ddb> trace __x86_indirect_thunk_r11() at __x86_indirect_thunk_r11+0x14 softclock_thread(ffff80002a57d540) at softclock_thread+0xc4 sys/kern/kern_timeout.c:814 end trace frame: 0x0, count: -2