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_thread(ffff8000fffff050) at softclock_thread+0xf4 sys/kern/kern_timeout.c:765 end trace frame: 0x0, count: -2 ddb> show registers rdi 0xdead4110dead4110 rsi 0 rbp 0xffff8000216048b0 rbx 0 rdx 0 rcx 0xffffffff82c10a80 timeout_proc rax 0x9 r8 0 r9 0 r10 0x78bca212a8660b19 r11 0xdead4110dead4110 r12 0xdead4110dead4110 r13 0xffffffff82b9dff0 cpu_info_full_primary+0x1ff0 r14 0xffff8000ffffcbd0 r15 0xdead4110dead4110 rip 0xffffffff81008ac4 __llvm_retpoline_r11+0x14 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021604870 ss 0x10 __llvm_retpoline_r11+0x14: ret ddb> show proc PROC (softclock) pid=321783 stat=onproc flags process=14000 proc=40000200 pri=0, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000fffff308,0xffff8000ffffeda8 process=0xffff8000ffffcbd0 user=0xffff8000215ff000, vmspace=0xffffffff82c0a9b0 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 64390 20742 39113 0 2 0x3000 syz-executor.5 91196 102046 68068 0 2 0 syz-executor.6 91196 306102 68068 0 3 0x4000080 fsleep syz-executor.6 63185 227029 67842 0 2 0x480 syz-executor.3 63185 333479 67842 0 3 0x4000080 fsleep syz-executor.3 35327 428769 41284 0 2 0x480 syz-executor.7 35327 412547 41284 0 3 0x4000080 netio syz-executor.7 35327 275215 41284 0 3 0x4000080 fsleep syz-executor.7 67842 459845 64413 0 2 0x482 syz-executor.3 36157 276306 64413 0 3 0x82 piperd syz-executor.2 22694 291730 64413 0 2 0x482 syz-executor.4 39113 269427 64413 0 2 0x482 syz-executor.5 41284 494157 64413 0 2 0x482 syz-executor.7 68068 241214 64413 0 2 0x482 syz-executor.6 70201 25641 0 0 3 0x14280 nfsidl nfsio 76747 274927 0 0 3 0x14280 nfsidl nfsio 9462 440555 0 0 3 0x14280 nfsidl nfsio 39687 299857 0 0 3 0x14280 nfsidl nfsio 72515 317086 0 0 3 0x14280 nfsidl nfsio 41418 347622 0 0 3 0x14280 nfsidl nfsio 3155 154119 0 0 3 0x14280 nfsidl nfsio 76706 302907 0 0 3 0x14280 nfsidl nfsio 51843 417771 0 0 3 0x14280 nfsidl nfsio 6427 230886 0 0 3 0x14280 nfsidl nfsio 47323 206165 0 0 3 0x14280 nfsidl nfsio 9262 131662 0 0 3 0x14280 nfsidl nfsio 2607 77086 0 0 3 0x14280 nfsidl nfsio 39440 304886 0 0 3 0x14280 nfsidl nfsio 15774 403277 0 0 3 0x14280 nfsidl nfsio 31649 126716 0 0 3 0x14280 nfsidl nfsio 54334 200281 0 0 3 0x14280 nfsidl nfsio 35266 449632 0 0 3 0x14280 nfsidl nfsio 7657 507842 0 0 3 0x14280 nfsidl nfsio 51016 484367 0 0 3 0x14280 nfsidl nfsio 40885 7422 64413 0 2 0x482 syz-executor.0 37980 278305 64413 0 2 0x482 syz-executor.1 56476 48807 0 0 3 0x14200 acct acct 84504 238910 1 0 3 0x100083 ttyin getty 29201 72371 0 0 3 0x14200 bored sosplice 64413 437498 51572 0 3 0x82 wait syz-fuzzer 64413 273418 51572 0 3 0x4000082 thrsleep syz-fuzzer 64413 355654 51572 0 3 0x4000082 wait syz-fuzzer 64413 90712 51572 0 3 0x4000082 thrsleep syz-fuzzer 64413 302775 51572 0 3 0x4000082 wait syz-fuzzer 64413 25304 51572 0 3 0x4000082 wait syz-fuzzer 64413 474020 51572 0 3 0x4000082 wait syz-fuzzer 64413 436049 51572 0 3 0x4000082 thrsleep syz-fuzzer 64413 74063 51572 0 3 0x4000082 wait syz-fuzzer 64413 345227 51572 0 3 0x4000082 kqread syz-fuzzer 64413 258744 51572 0 3 0x4000082 thrsleep syz-fuzzer 64413 467441 51572 0 3 0x4000082 wait syz-fuzzer 64413 382615 51572 0 3 0x4000082 wait syz-fuzzer 64413 460316 51572 0 3 0x4000082 thrsleep syz-fuzzer 51572 283997 14775 0 3 0x10008a sigsusp ksh 14775 285229 5986 0 3 0x9a kqread sshd 5986 522617 1 0 3 0x88 kqread sshd 56095 126531 35867 73 3 0x1100090 kqread syslogd 35867 315298 1 0 3 0x100082 netio syslogd 43473 191259 1 0 3 0x100080 kqread resolvd 2205 408874 0 0 2 0x14200 smr 23206 495446 0 0 2 0x14200 zerothread 29292 13343 0 0 3 0x14200 aiodoned aiodoned 64322 87494 0 0 3 0x14200 syncer update 98505 407712 0 0 3 0x14200 cleaner cleaner 79804 305118 0 0 3 0x14200 reaper reaper 69727 45453 0 0 3 0x14200 pgdaemon pagedaemon 82870 431036 0 0 3 0x14200 bored viomb 76247 217621 0 0 3 0x40014200 acpi0 acpi0 93513 341557 0 0 3 0x14200 bored softnet 43827 502345 0 0 3 0x14200 bored softnet 25988 342717 0 0 3 0x14200 bored softnet 22157 198884 0 0 3 0x14200 bored softnet 56267 461658 0 0 3 0x14200 bored systqmp 88052 156438 0 0 3 0x14200 bored systq *42881 321783 0 0 7 0x40014200 softclock 10989 157286 0 0 3 0x40014200 idle0 1 137433 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 10218 6425K 7210K 78643K 13435 0 pcb 13 20K 24K 78643K 1072 0 rtable 245 17K 17K 78643K 1844 0 ifaddr 94 26K 27K 78643K 725 0 sysctl 2 0K 2K 78643K 9 0 counters 30 17K 17K 78643K 278 0 ioctlops 0 0K 4K 78643K 873 0 iov 0 0K 32K 78643K 1109 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1556 97K 98K 78643K 5886 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 80 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 1092 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 15 53K 73K 78643K 6685 0 sigio 0 0K 0K 78643K 163 0 proc 56 43K 83K 78643K 1571 0 subproc 104 6K 6K 78643K 498 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 573 0 in_multi 100 6K 7K 78643K 656 0 ether_multi 1 0K 0K 78643K 89 0 mrt 1 0K 0K 78643K 41 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 217 970K 970K 78643K 217 0 exec 0 0K 1K 78643K 1973 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 286 84K 99K 78643K 44158 0 UVM aobj 131 6K 6K 78643K 137 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 336 0 NDP 14 0K 1K 78643K 236 0 temp 135 5770K 71434K 78643K 95459 0 kqueue 6 10K 24K 78643K 541 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 120 506 0 505 5 4 1 2 0 8 0 rtentry 112 604 0 497 5 1 4 4 0 8 0 unpcb 144 7419 0 7283 59 53 6 8 0 8 0 syncache 296 53 0 53 9 9 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 114 0 114 4 4 0 1 0 8 0 tcpcb 776 9538 0 9532 124 115 9 21 0 8 8 arp 88 90 0 70 1 0 1 1 0 8 0 ipq 40 7 0 6 4 3 1 1 0 8 0 ipqe 40 19 0 15 4 3 1 1 0 8 0 inpcb 336 14126 0 14121 122 111 11 20 0 8 10 nd6 48 122 0 98 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 kcovpl 48 38 0 30 1 0 1 1 0 8 0 ppxss 1160 163 0 161 10 9 1 1 0 8 0 pppxif 1360 99 0 99 7 7 0 1 0 8 0 pfstscr 40 73 0 0 1 0 1 1 0 8 0 pfanchor 1280 258 0 8 21 0 21 21 0 8 0 pfstitem 24 79 0 66 1 0 1 1 0 8 0 pfstkey 128 119 0 115 1 0 1 1 0 8 0 pfstate 352 113 0 40 7 0 7 7 0 8 0 rttmr 136 16 0 16 6 5 1 1 0 8 1 pool(rttmr): free list modified: page 0xfffffd8069956000; item ordinal 0; addr 0xfffffd8069956e80 (p 0xfffffd8069956000); offset 0x10=0xffffffff art_heap8 4096 8 0 7 6 5 1 3 0 8 0 art_heap4 256 2536 0 2068 46 16 30 30 0 8 0 art_table 32 2544 0 2075 4 0 4 4 0 8 0 art_node 16 599 0 505 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 1 0 1 0 8 0 semapl 112 1090 0 1080 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 11268 0 9818 91 0 91 91 0 8 0 ffsino 240 11268 0 9818 86 0 86 86 0 8 0 nchpl 144 20703 0 19065 63 0 63 63 0 8 0 rtmask 32 1 0 1 1 1 0 1 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 78007 0 78007 3 2 1 3 0 8 1 vmpool 664 20 0 20 6 6 0 1 0 8 0 kstatmem 264 310 0 282 4 1 3 3 0 8 1 scxspl 216 54059 0 54059 17 16 1 8 0 8 1 plimitpl 152 1058 0 1044 1 0 1 1 0 8 0 sigapl 424 6944 0 6881 8 0 8 8 0 8 0 futexpl 64 78645 0 78642 1 0 1 1 0 8 0 knotepl 120 120617 0 120552 39 35 4 15 0 8 0 kqueuepl 184 1657 0 1652 22 21 1 7 0 8 0 pipepl 288 2397 0 2369 41 38 3 9 0 8 0 fdescpl 432 6904 0 6881 4 0 4 4 0 8 0 filepl 120 64240 0 63893 77 63 14 17 0 8 3 lockfpl 104 1353 0 1352 2 1 1 2 0 8 0 lockfspl 48 553 0 552 1 0 1 1 0 8 0 sessionpl 144 54 0 39 1 0 1 1 0 8 0 pgrppl 48 295 0 280 1 0 1 1 0 8 0 ucredpl 104 10072 0 10064 1 0 1 1 0 8 0 zombiepl 144 6885 0 6881 2 1 1 1 0 8 0 processpl 1008 6944 0 6881 10 1 9 9 0 8 0 procpl 696 16794 0 16714 13 4 9 9 0 8 0 sosppl 168 94 0 94 8 8 0 1 0 8 0 sockpl 456 22071 0 21929 430 410 20 35 0 8 2 mcl64k 65536 301 0 299 8 7 1 1 0 8 0 mcl16k 16384 124 0 124 14 14 0 1 0 8 0 mcl12k 12288 229 0 229 11 11 0 1 0 8 0 mcl9k 9216 99 0 98 11 10 1 1 0 8 0 mcl8k 8192 399 0 394 7 6 1 1 0 8 0 mcl4k 4096 802 0 798 4 3 1 1 0 8 0 mcl2k2 2112 37 0 37 13 13 0 1 0 8 0 mcl2k 2048 92373 0 92321 40 32 8 31 0 8 0 mtagpl 96 166 0 166 5 5 0 4 0 8 0 mbufpl 256 232128 0 231938 1078 1064 14 507 0 8 0 bufpl 288 14468 0 8071 458 0 458 458 0 8 0 anonpl 24 1328790 0 1311659 167 51 116 139 0 188 0 amapchunkpl 152 126494 0 125802 82 49 33 42 0 158 0 amappl16 200 11771 0 11169 67 31 36 45 0 8 0 amappl15 192 11 0 10 1 0 1 1 0 8 0 amappl14 184 270 0 260 2 1 1 2 0 8 0 amappl13 176 14 0 14 3 3 0 1 0 8 0 amappl12 168 761 0 760 1 0 1 1 0 8 0 amappl11 160 51 0 46 1 0 1 1 0 8 0 amappl10 152 67 0 57 1 0 1 1 0 8 0 amappl9 144 988 0 988 6 6 0 1 0 8 0 amappl8 136 339 0 258 3 0 3 3 0 8 0 amappl7 128 222 0 201 2 0 2 2 0 8 0 amappl6 120 332 0 318 2 1 1 2 0 8 0 amappl5 112 350 0 347 1 0 1 1 0 8 0 amappl4 104 943 0 914 2 1 1 2 0 8 0 amappl3 96 19114 0 19071 2 0 2 2 0 8 0 amappl2 88 7743 0 7689 3 0 3 3 0 8 0 amappl1 80 155744 0 155152 27 13 14 26 0 8 0 amappl 88 43201 0 43033 5 0 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 6924 0 6901 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 6924 0 6901 1 0 1 1 0 8 0 vmmpekpl 168 56584 0 56520 4 0 4 4 0 8 0 vmmpepl 168 637073 0 634657 263 144 119 145 0 357 2 vmsppl 344 6923 0 6901 3 0 3 3 0 8 0 rwobjpl 24 166932 0 159323 47 0 47 47 0 8 0 pdppl 4096 13854 0 13802 416 358 58 68 0 8 6 pvpl 32 2643759 0 2621790 354 165 189 333 0 265 0 pmappl 216 6923 0 6901 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2433 0 1665 37 12 25 37 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace __llvm_retpoline_r11() at __llvm_retpoline_r11+0x14 softclock_thread(ffff8000fffff050) at softclock_thread+0xf4 sys/kern/kern_timeout.c:765 end trace frame: 0x0, count: -2 ddb> machine ddbcpu 1 No such command ddb> trace __llvm_retpoline_r11() at __llvm_retpoline_r11+0x14 softclock_thread(ffff8000fffff050) at softclock_thread+0xf4 sys/kern/kern_timeout.c:765 end trace frame: 0x0, count: -2