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 spec_write(ffff80003a92ef70) at spec_write+0x117 sys/kern/spec_vnops.c:302 VOP_WRITE(fffffd806a2c0c08,ffff80003a92f190,1,fffffd8007bfb820) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_write(fffffd806c713f10,ffff80003a92f190,0) at vn_write+0x1c3 sys/kern/vfs_vnops.c:408 dofilewritev(ffff80002a7f27d0,3,ffff80003a92f190,0,ffff80003a92f250) at dofilewritev+0x23c sys/kern/sys_generic.c:380 sys_writev(ffff80002a7f27d0,ffff80003a92f300,ffff80003a92f250) at sys_writev+0xd8 sys/kern/sys_generic.c:327 syscall(ffff80003a92f300) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a92f300) at syscall+0x97e sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4653bd3d830, count: -8 ddb> show registers rdi 0xffff80000147d800 rsi 0xfffffd806a34f500 rbp 0xffff80003a92eec0 rbx 0 rdx 0xffff80003a92ed60 rcx 0 rax 0 r8 0x7f7fffffc000 r9 0 r10 0xa927a8722f46b5c1 r11 0xd8c3900000000 r12 0xffff80000147d800 r13 0xfffffd806a34f500 r14 0xffff80000150c200 r15 0xffff80000150c2a0 rip 0xffffffff82cd1304 __x86_indirect_thunk_r11+0x14 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003a92ed50 ss 0x10 __x86_indirect_thunk_r11+0x14: ret ddb> show proc PROC (syz-executor) tid=51702 pid=73349 tcnt=2 stat=onproc flags process=1000 proc=4080000 runpri=0, usrpri=50, slppri=0, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a7f3c50 scnt=1 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7f3c50,0xffff80002a7f34b0 process=0xffff800036d15238 user=0xffff80003a92a000, vmspace=0xfffffd8079d3a008 estcpu=0, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 26242 469077 77871 0 2 0xc80 syz-executor 26242 413541 77871 0 3 0x4000080 kqsel syz-executor 26242 21140 77871 0 3 0x4000080 fsleep syz-executor 98828 35148 92525 0 3 0x2 smrbar ifconfig 92525 90078 17101 0 3 0x10008a sigsusp sh 90477 100270 75597 0 3 0x2 clonelk syz-executor 17101 357522 75597 0 3 0x82 wait syz-executor 77871 428329 75597 0 3 0x82 nanoslp syz-executor 2030 204331 1 0 3 0x3000 suspend syz-executor 2030 273259 1 0 2 0x4081000 syz-executor 12645 437674 1 60928 3 0x3010 suspend syz-executor 12645 164394 1 60928 2 0x4081010 syz-executor 9280 69587 1 0 3 0x3000 suspend syz-executor 9280 493289 1 0 2 0x4081000 syz-executor 40110 148191 1 0 3 0x3000 suspend syz-executor 40110 373676 1 0 2 0x4081000 syz-executor 32445 33699 1 0 3 0x3000 suspend syz-executor 32445 270848 1 0 2 0x4081000 syz-executor 73349 287849 1 0 3 0x3000 suspend syz-executor *73349 51702 1 0 7 0x4081000 syz-executor 20061 505083 75597 0 3 0x82 piperd syz-executor 85716 445189 0 0 3 0x14200 acct acct 62179 301468 0 0 3 0x14200 bored sosplice 70363 499116 1 0 3 0x100083 ttyin getty 75597 517513 16148 0 2 0x10000082 syz-executor 16148 9840 4132 0 3 0x10008a sigsusp ksh 4132 122048 79516 0 3 0x98 kqread sshd-session 79516 81022 15869 0 3 0x92 kqread sshd-session 15869 215079 1 0 3 0x88 kqread sshd 86672 384507 28723 73 3 0x1100090 kqread syslogd 28723 384577 1 0 3 0x100082 sbwait syslogd 49350 16300 1 0 3 0x100080 kqread resolvd 72359 488421 1288 77 2 0x100012 dhcpleased 40301 77095 1288 77 3 0x100092 kqread dhcpleased 1288 74658 1 0 3 0x80 kqread dhcpleased 45470 501880 0 0 3 0x14200 bored smr 99401 311003 0 0 2 0x14200 zerothread 80113 506991 0 0 3 0x14200 aiodoned aiodoned 18518 39363 0 0 3 0x14200 syncer update 90670 376452 0 0 3 0x14200 cleaner cleaner 29938 388578 0 0 3 0x14200 reaper reaper 16726 180775 0 0 3 0x14200 pgdaemon pagedaemon 31283 490940 0 0 3 0x14200 bored viomb 43655 267836 0 0 3 0x40014200 acpi0 acpi0 14821 394551 0 0 3 0x14200 bored softnet3 88678 172399 0 0 3 0x14200 bored softnet2 32825 370595 0 0 3 0x14200 bored softnet1 33201 11401 0 0 3 0x14200 bored softnet0 23146 186633 0 0 3 0x14200 bored systqmp 6829 406479 0 0 3 0x14200 bored systq 77818 513031 0 0 2 0x40014200 softclock 24640 206666 0 0 3 0x40014200 idle0 1 433131 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10179 11118K 12250K 166960K 14336 0 pcb 19 20K 22K 166960K 366 0 rtable 117 6K 8K 166960K 1270 0 pf 26 12K 15K 166960K 155 0 ifaddr 23 4K 7K 166960K 178 0 ifgroup 38 1K 2K 166960K 232 0 sysctl 4 1K 9K 166960K 17 0 counters 29 17K 18K 166960K 166 0 ioctlops 0 0K 4K 166960K 426 0 iov 0 0K 16K 166960K 55 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1579 99K 99K 166960K 3479 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 6K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 101 0 dirhash 15 2K 2K 166960K 39 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 93K 166960K 1578 0 sigio 0 0K 0K 166960K 16 0 proc 67 67K 116K 166960K 1214 0 subproc 90 5K 7K 166960K 504 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 184 0 in_multi 43 3K 7K 166960K 396 0 ether_multi 1 0K 0K 166960K 12 0 mrt 0 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 837 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 242 177K 211K 166960K 13791 0 UVM aobj 32 6K 6K 166960K 37 0 pinsyscall 36 72K 94K 166960K 3230 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 96 0 NDP 8 0K 2K 166960K 126 0 temp 76 8686K 8753K 166960K 48326 0 kqueue 15 24K 30K 166960K 217 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 120 247 0 244 3 0 3 3 0 8 2 rtentry 136 380 0 336 4 0 4 4 0 8 0 unpcb 144 1271 0 1247 6 0 6 6 0 8 5 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpcb 736 290 0 285 2 0 2 2 0 8 1 arp 88 64 0 58 1 0 1 1 0 8 0 ipq 40 4 0 3 1 0 1 1 0 8 0 ipqe 40 4 0 3 1 0 1 1 0 8 0 inpcb 328 1749 0 1735 10 0 10 10 0 8 8 ip6q 72 2 0 1 1 0 1 1 0 8 0 ip6af 40 4 0 3 1 0 1 1 0 8 0 nd6 104 96 0 86 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 0 1 1 0 8 1 kcovpl 48 56 0 46 1 0 1 1 0 8 0 ppxss 1072 99 0 99 1 0 1 1 0 8 1 pppxif 1384 4 0 4 1 0 1 1 0 8 1 pfrktable 1344 66 0 66 1 0 1 1 0 8 1 pfstkey 128 3 0 3 1 0 1 1 0 8 1 pfstate 384 2 0 2 1 0 1 1 0 8 1 pfrule 1344 2 0 2 1 0 1 1 0 8 1 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 1665 0 1433 29 3 26 29 0 8 8 art_table 32 1667 0 1433 4 0 4 4 0 8 0 art_node 16 376 0 338 1 0 1 1 0 8 0 sysvmsgpl 40 18 0 14 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 98 0 88 1 0 1 1 0 8 0 shmpl 112 34 0 5 1 0 1 1 0 8 0 dirhash 1024 36 0 17 3 0 3 3 0 8 0 dino2pl 256 3598 0 2041 98 0 98 98 0 8 0 ffsino 248 3598 0 2041 98 0 98 98 0 8 0 nchpl 144 5196 0 3422 66 0 66 66 0 8 0 rtmask 32 3 0 3 1 0 1 1 0 8 1 uvmvnodes 80 5350 0 0 110 0 110 110 0 8 0 vnodes 216 5350 0 0 298 0 298 298 0 8 0 namei 1024 21582 0 21582 2 0 2 2 0 8 2 kstatmem 264 128 0 112 3 0 3 3 0 8 0 scsiplug 72 7 0 7 1 0 1 1 0 8 1 scxspl 216 15872 0 15872 8 0 8 8 1 8 8 plimitpl 152 320 0 297 1 0 1 1 0 8 0 sigapl 424 1768 0 1719 6 0 6 6 0 8 0 knotepl 120 338481 0 338198 27 17 10 17 0 8 1 kqueuepl 184 490 0 476 4 0 4 4 0 8 3 pipepl 296 492 0 458 8 0 8 8 0 8 5 fdescpl 440 1749 0 1722 5 0 5 5 0 8 1 filepl 120 12664 0 12421 18 2 16 18 0 8 7 lockfpl 104 419 0 416 1 0 1 1 0 8 0 lockfspl 48 190 0 187 1 0 1 1 0 8 0 sessionpl 144 69 0 61 1 0 1 1 0 8 0 pgrppl 48 209 0 187 1 0 1 1 0 8 0 ucredpl 104 1638 0 1626 1 0 1 1 0 8 0 zombiepl 144 1729 0 1719 1 0 1 1 0 8 0 processpl 1160 1768 0 1719 4 0 4 4 0 8 0 procpl 656 3328 0 3271 6 0 6 6 0 8 0 sosppl 168 5 0 5 1 0 1 1 0 8 1 sockpl 528 3301 0 3256 19 7 12 16 0 8 8 mcl64k 65536 37 0 37 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 2 0 2 1 0 1 1 0 8 1 mcl8k 8192 78 0 77 1 0 1 1 0 8 0 mcl4k 4096 3791 0 3737 14 0 14 14 0 8 6 mcl2k 2048 1248 778 1238 6 0 6 6 0 8 3 mtagpl 96 251 0 240 3 0 3 3 0 8 1 mbufpl 256 18054 0 17915 45 20 25 45 0 8 7 bufpl 280 4408 0 129 306 0 306 306 0 8 0 anonpl 24 204056 0 195591 100 0 100 100 0 187 24 amapchunkpl 152 43719 0 43152 31 0 31 31 0 158 5 amappl16 200 2571 0 2310 39 4 35 39 0 8 8 amappl15 192 5 0 5 1 0 1 1 0 8 1 amappl14 184 153 0 143 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 0 1 1 0 8 1 amappl12 168 2749 0 2722 2 0 2 2 0 8 0 amappl11 160 42 0 32 1 0 1 1 0 8 0 amappl10 152 6 0 5 1 0 1 1 0 8 0 amappl9 144 256 0 255 1 0 1 1 0 8 0 amappl8 136 16 0 14 1 0 1 1 0 8 0 amappl7 128 143 0 132 1 0 1 1 0 8 0 amappl6 120 406 0 400 1 0 1 1 0 8 0 amappl5 112 203 0 195 1 0 1 1 0 8 0 amappl4 104 357 0 340 1 0 1 1 0 8 0 amappl3 96 8814 0 8713 4 0 4 4 0 8 0 amappl2 88 962 0 905 2 0 2 2 0 8 0 amappl1 80 15767 0 15218 14 0 14 14 0 8 0 amappl 88 12522 0 12348 5 0 5 5 0 92 0 dma4096 4096 3 0 3 1 0 1 1 0 8 1 dma2048 2048 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 2 0 2 1 0 1 1 0 8 1 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 256 0 256 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 36 0 5 1 0 1 1 0 8 0 uaddrrnd 24 1749 0 1722 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1749 0 1722 1 0 1 1 0 8 0 vmmpekpl 168 15384 0 15334 3 0 3 3 0 8 0 vmmpepl 168 123430 0 121420 115 0 115 115 0 357 10 vmsppl 360 1748 0 1722 4 0 4 4 0 8 1 rwobjpl 32 33740 0 27199 54 0 54 54 0 8 0 pdppl 4096 3505 0 3444 123 48 75 81 0 8 14 pvpl 32 661909 0 648180 181 0 181 181 0 265 37 pmappl 216 1748 0 1722 3 0 3 3 0 8 1 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 333 0 71 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace __x86_indirect_thunk_r11() at __x86_indirect_thunk_r11+0x14 spec_write(ffff80003a92ef70) at spec_write+0x117 sys/kern/spec_vnops.c:302 VOP_WRITE(fffffd806a2c0c08,ffff80003a92f190,1,fffffd8007bfb820) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_write(fffffd806c713f10,ffff80003a92f190,0) at vn_write+0x1c3 sys/kern/vfs_vnops.c:408 dofilewritev(ffff80002a7f27d0,3,ffff80003a92f190,0,ffff80003a92f250) at dofilewritev+0x23c sys/kern/sys_generic.c:380 sys_writev(ffff80002a7f27d0,ffff80003a92f300,ffff80003a92f250) at sys_writev+0xd8 sys/kern/sys_generic.c:327 syscall(ffff80003a92f300) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a92f300) at syscall+0x97e sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4653bd3d830, count: -8 ddb> machine ddbcpu 1 No such command ddb> trace __x86_indirect_thunk_r11() at __x86_indirect_thunk_r11+0x14 spec_write(ffff80003a92ef70) at spec_write+0x117 sys/kern/spec_vnops.c:302 VOP_WRITE(fffffd806a2c0c08,ffff80003a92f190,1,fffffd8007bfb820) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_write(fffffd806c713f10,ffff80003a92f190,0) at vn_write+0x1c3 sys/kern/vfs_vnops.c:408 dofilewritev(ffff80002a7f27d0,3,ffff80003a92f190,0,ffff80003a92f250) at dofilewritev+0x23c sys/kern/sys_generic.c:380 sys_writev(ffff80002a7f27d0,ffff80003a92f300,ffff80003a92f250) at sys_writev+0xd8 sys/kern/sys_generic.c:327 syscall(ffff80003a92f300) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a92f300) at syscall+0x97e sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4653bd3d830, count: -8