kernel: protection fault trap, code=0 Stopped at __llvm_retpoline_r11+0x14: ret ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace __llvm_retpoline_r11() at __llvm_retpoline_r11+0x14 softclock_process_tick_timeout(fffffd8071782f20,0) at softclock_process_tick_timeout+0x1ac sys/kern/kern_timeout.c:725 softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:756 softintr_dispatch(0) at softintr_dispatch+0xd1 sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0x7f7ffffd2a70, count: -5 ddb> show registers rdi 0x3365643635623363 rsi 0 rbp 0xffff80002e8cba60 rbx 0 rdx 0 rcx 0xffffffff82a0e1f0 timeout_todo rax 0x9 r8 0x2b r9 0x2b r10 0x2551bf3716df710 r11 0x3462383433636466 r12 0x3365643635623363 r13 0xffffffff82933ff0 cpu_info_full_primary+0x1ff0 r14 0x6263393638303763 r15 0x3462383433636466 rip 0xffffffff81003fe4 __llvm_retpoline_r11+0x14 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002e8cba20 ss 0 __llvm_retpoline_r11+0x14: ret ddb> show proc PROC (syz-executor.2) pid=325158 stat=onproc flags process=0 proc=0 pri=78, usrpri=78, nice=20 forw=0xffffffffffffffff, list=0xffff8000231cca88,0xffff8000231cc7f8 process=0xffff8000225c6c00 user=0xffff80002e8c6000, vmspace=0xfffffd807ac4fdd0 estcpu=28, cpticks=1, pctcpu=0.1 user=1, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 41857 29448 87129 0 2 0 syz-executor.5 58886 208482 74562 0 2 0 syz-executor.0 58886 480385 74562 0 3 0x4000080 fsleep syz-executor.0 *35514 325158 91053 0 7 0 syz-executor.2 35514 51925 91053 0 3 0x4000080 fsleep syz-executor.2 36410 198422 85536 0 2 0x2 syz-executor.1 4748 280498 85536 0 3 0x82 nanoslp syz-executor.6 91053 83103 85536 0 2 0x482 syz-executor.2 87129 32547 85536 0 3 0x82 nanoslp syz-executor.5 70872 458863 85536 0 2 0x2 syz-executor.4 74562 249903 85536 0 2 0x482 syz-executor.0 81152 490977 85536 0 2 0x2 syz-executor.7 21929 358089 85536 0 2 0x482 syz-executor.3 47927 353099 1 0 3 0x100083 ttyin getty 45771 377333 0 0 3 0x14200 acct acct 76241 140092 0 0 3 0x14200 bored sosplice 85536 35260 59435 0 3 0x82 wait syz-fuzzer 85536 210494 59435 0 3 0x4000082 nanoslp syz-fuzzer 85536 172701 59435 0 3 0x4000082 wait syz-fuzzer 85536 128144 59435 0 3 0x4000082 wait syz-fuzzer 85536 372078 59435 0 3 0x4000082 thrsleep syz-fuzzer 85536 81702 59435 0 3 0x4000082 thrsleep syz-fuzzer 85536 379891 59435 0 3 0x4000082 wait syz-fuzzer 85536 418574 59435 0 3 0x4000082 wait syz-fuzzer 85536 502722 59435 0 3 0x4000082 thrsleep syz-fuzzer 85536 286412 59435 0 3 0x4000082 thrsleep syz-fuzzer 85536 476454 59435 0 3 0x4000082 wait syz-fuzzer 85536 386155 59435 0 3 0x4000082 wait syz-fuzzer 85536 187322 59435 0 3 0x4000082 wait syz-fuzzer 85536 1898 59435 0 3 0x4000082 kqread syz-fuzzer 59435 452319 29945 0 3 0x10008a sigsusp ksh 29945 334631 27944 0 3 0x9a kqread sshd 27944 486682 1 0 3 0x88 kqread sshd 44924 193782 88473 73 3 0x1100090 kqread syslogd 88473 30301 1 0 3 0x100082 netio syslogd 2767 509451 1 0 3 0x100080 kqread resolvd 24289 365846 73343 77 3 0x100092 kqread dhcpleased 73035 26843 73343 77 3 0x100092 kqread dhcpleased 73343 519769 1 0 3 0x80 kqread dhcpleased 14486 71684 0 0 3 0x14200 bored smr 7929 146737 0 0 2 0x14200 zerothread 45477 68231 0 0 3 0x14200 aiodoned aiodoned 23878 431962 0 0 2 0x14600 update 55910 443153 0 0 3 0x14200 cleaner cleaner 85310 117147 0 0 3 0x14200 reaper reaper 39125 281988 0 0 3 0x14200 pgdaemon pagedaemon 72511 340137 0 0 3 0x14200 bored viomb 58305 75152 0 0 3 0x40014200 acpi0 acpi0 89432 61055 0 0 3 0x14200 bored softnet 62456 236923 0 0 3 0x14200 bored softnet 22657 364713 0 0 3 0x14200 bored softnet 56868 9047 0 0 3 0x14200 bored softnet 45929 375618 0 0 3 0x14200 bored systqmp 9952 523733 0 0 3 0x14200 bored systq 2247 431465 0 0 3 0x40014200 bored softclock 80931 492741 0 0 3 0x40014200 idle0 1 72571 0 0 3 0x82 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 10240 6631K 10855K 78643K 105618 0 pcb 13 22K 27K 78643K 5236 0 rtable 198 10K 13K 78643K 5006 0 ifaddr 237 62K 62K 78643K 2214 0 sysctl 3 1K 1K 78643K 5 0 counters 27 17K 17K 78643K 549 0 ioctlops 0 0K 4K 78643K 3671 0 iov 0 0K 28K 78643K 2922 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1827 114K 114K 78643K 23390 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 3 5K 9K 78643K 110 0 VM map 2 0K 0K 78643K 2 0 sem 24 16K 32K 78643K 2938 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 14 49K 81K 78643K 18851 0 sigio 0 0K 0K 78643K 384 0 proc 59 59K 75K 78643K 3433 0 subproc 104 6K 6K 78643K 1112 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 929 0 in_multi 78 5K 7K 78643K 1652 0 ether_multi 1 0K 0K 78643K 127 0 mrt 1 0K 0K 78643K 393 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 253 1129K 1129K 78643K 253 0 exec 0 0K 2K 78643K 4721 0 pfkey data 0 0K 0K 78643K 88 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 306 185K 202K 78643K 102049 0 UVM aobj 131 4K 4K 78643K 137 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 724 0 NDP 13 0K 2K 78643K 616 0 temp 134 4730K 5754K 78643K 185252 0 kqueue 12 18K 26K 78643K 1386 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 1558 0 1555 17 16 1 4 0 8 0 rtentry 112 1551 0 1469 5 2 3 4 0 8 0 unpcb 144 17347 0 17328 157 156 1 9 0 8 0 syncache 296 49 0 49 15 15 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 129 0 129 4 4 0 1 0 8 0 tcpcb 768 5655 0 5647 237 229 8 15 0 8 6 arp 88 188 0 172 1 0 1 1 0 8 0 ipq 40 25 0 25 9 9 0 1 0 8 0 ipqe 40 87 0 87 9 9 0 1 0 8 0 inpcb 336 19932 0 19920 271 264 7 18 0 8 5 ip6q 72 12 0 11 5 4 1 1 0 8 0 ip6af 40 21 0 20 5 4 1 1 0 8 0 nd6 48 322 0 304 1 0 1 1 0 8 0 pkpcb 40 50 0 50 10 10 0 1 0 8 0 kcovpl 48 85 0 77 1 0 1 1 0 8 0 ppxss 1160 277 0 277 33 33 0 1 0 8 0 pppxif 1608 67 0 67 17 17 0 1 0 8 0 pfstscr 40 8 0 2 1 0 1 1 0 8 0 pfrktable 1344 30 0 30 1 1 0 1 0 8 0 pfanchor 1280 215 0 33 16 0 16 16 0 8 0 pftag 88 3 0 2 1 0 1 1 0 8 0 pfstitem 24 6 0 0 1 0 1 1 0 8 0 pfstkey 120 8 0 6 1 0 1 1 0 8 0 pfstate 336 4 0 1 1 0 1 1 0 8 0 pfrule 1360 46 0 43 2 1 1 1 0 8 0 rttmr 136 182 0 182 6 6 0 1 0 8 0 art_heap8 4096 2 0 1 2 1 1 2 0 8 0 art_heap4 256 6645 0 6274 65 41 24 32 0 8 0 art_table 32 6647 0 6275 6 2 4 5 0 8 0 art_node 16 1535 0 1464 1 0 1 1 0 8 0 sysvmsgpl 40 27 0 18 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 2926 0 2904 1 0 1 1 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 25317 0 23819 94 0 94 94 0 8 0 ffsino 240 25317 0 23819 89 0 89 89 0 8 0 nchpl 144 49571 0 49014 63 41 22 63 0 8 0 rtmask 32 18 0 18 6 6 0 1 0 8 0 uvmvnodes 80 6209 0 0 127 0 127 127 0 8 0 vnodes 216 6209 0 0 345 0 345 345 0 8 0 namei 1024 209944 0 209943 10 9 1 2 0 8 0 vcpupl 2048 6 0 0 1 0 1 1 0 8 0 vmpool 536 6 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 9 0 9 1 1 0 1 0 8 0 kstatmem 264 776 0 750 6 4 2 3 0 8 0 scsiplug 72 15 0 15 3 3 0 1 0 8 0 scxspl 216 146150 0 146150 39 38 1 8 0 8 1 plimitpl 152 2148 0 2133 1 0 1 1 0 8 0 sigapl 424 19010 0 18966 8 2 6 8 0 8 0 futexpl 64 217594 0 217592 3 2 1 1 0 8 0 knotepl 120 297958 0 297878 116 111 5 15 0 8 0 kqueuepl 184 4130 0 4122 55 54 1 7 0 8 0 pipepl 288 3820 0 3792 87 84 3 7 0 8 0 fdescpl 432 18972 0 18947 4 0 4 4 0 8 0 filepl 120 156753 0 156509 207 197 10 17 0 8 1 lockfpl 104 5313 0 5311 11 10 1 3 0 8 0 lockfspl 48 1315 0 1313 1 0 1 1 0 8 0 sessionpl 144 107 0 91 1 0 1 1 0 8 0 pgrppl 48 361 0 345 1 0 1 1 0 8 0 ucredpl 104 18813 0 18799 1 0 1 1 0 8 0 zombiepl 144 18968 0 18966 2 1 1 1 0 8 0 processpl 1000 19010 0 18966 10 4 6 9 0 8 0 procpl 672 47591 0 47532 36 29 7 9 0 8 0 sosppl 168 196 0 196 17 17 0 1 0 8 0 sockpl 456 38974 0 38940 768 756 12 37 0 8 7 mcl64k 65536 787 0 787 40 39 1 1 0 8 1 mcl16k 16384 234 0 234 42 41 1 1 0 8 1 mcl12k 12288 674 0 674 35 35 0 1 0 8 0 mcl9k 9216 226 0 226 50 50 0 1 0 8 0 mcl8k 8192 1537 0 1537 26 25 1 1 0 8 1 mcl4k 4096 3220 0 3220 40 39 1 3 0 8 1 mcl2k2 2112 123 0 123 46 46 0 1 0 8 0 mcl2k 2048 115789 0 115631 79 55 24 28 0 8 0 mtagpl 96 18466 0 17316 82 48 34 38 0 8 0 mbufpl 256 396663 0 395326 956 860 96 160 0 8 0 bufpl 288 32492 0 26089 458 0 458 458 0 8 0 anonpl 24 3540405 0 3524636 253 131 122 140 0 188 0 amapchunkpl 152 332496 0 331851 162 132 30 44 0 158 0 amappl16 200 49982 0 49321 213 176 37 54 0 8 0 amappl15 192 4803 0 4793 1 0 1 1 0 8 0 amappl14 184 2184 0 2179 1 0 1 1 0 8 0 amappl13 176 4648 0 4641 1 0 1 1 0 8 0 amappl12 168 1356 0 1349 1 0 1 1 0 8 0 amappl11 160 2164 0 2152 1 0 1 1 0 8 0 amappl10 152 985 0 981 1 0 1 1 0 8 0 amappl9 144 4241 0 4229 1 0 1 1 0 8 0 amappl8 136 3397 0 3299 5 1 4 4 0 8 0 amappl7 128 1640 0 1620 1 0 1 1 0 8 0 amappl6 120 4036 0 4011 2 1 1 2 0 8 0 amappl5 112 13483 0 13472 1 0 1 1 0 8 0 amappl4 104 7346 0 7316 2 0 2 2 0 8 0 amappl3 96 56406 0 56353 2 0 2 2 0 8 0 amappl2 88 24439 0 24369 3 1 2 3 0 8 0 amappl1 80 443684 0 443012 26 10 16 21 0 8 0 amappl 88 100083 0 99916 7 2 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 72 136 0 6 3 0 3 3 0 8 0 uaddrrnd 24 18978 0 18947 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 18978 0 18947 1 0 1 1 0 8 0 vmmpekpl 168 135841 0 135792 3 0 3 3 0 8 0 vmmpepl 168 1852404 0 1849731 395 254 141 164 0 357 0 vmsppl 272 18977 0 18947 4 1 3 3 0 8 0 rwobjpl 24 437548 0 429439 55 5 50 51 0 8 0 pdppl 4096 37962 0 37900 1027 957 70 78 0 8 8 pvpl 32 7206121 0 7184755 528 323 205 255 0 265 0 pmappl 216 18977 0 18947 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3300 0 2419 28 1 27 28 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace __llvm_retpoline_r11() at __llvm_retpoline_r11+0x14 softclock_process_tick_timeout(fffffd8071782f20,0) at softclock_process_tick_timeout+0x1ac sys/kern/kern_timeout.c:725 softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:756 softintr_dispatch(0) at softintr_dispatch+0xd1 sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0x7f7ffffd2a70, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace __llvm_retpoline_r11() at __llvm_retpoline_r11+0x14 softclock_process_tick_timeout(fffffd8071782f20,0) at softclock_process_tick_timeout+0x1ac sys/kern/kern_timeout.c:725 softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:756 softintr_dispatch(0) at softintr_dispatch+0xd1 sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0x7f7ffffd2a70, count: -5