kernel: protection fault trap, code=0 Stopped at ktrops+0x4f: movq 0x8(%r14),%r14 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace ktrops(ffff80002a611558,dead4110dead4110,0,c0001208,fffffd806c2cc470,fffffd807f7d7820) at ktrops+0x4f ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a611558,dead4110dead4110,0,c0001208,fffffd806c2cc470,fffffd807f7d7820) at ktrops+0x4f sys/kern/kern_ktrace.c:561 doktrace(fffffd806c2cc470,4,40001208,0,ffff80002a611558) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806c2cc470,4,40001208,0,ffff80002a611558) at doktrace+0x514 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a611558,ffff80002a695b00,ffff80002a695a50) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002a695b00) at syscall+0x538 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7650fb934400, count: -5 ddb> show registers rdi 0xffff80002a611558 rsi 0xdead4110dead4110 rbp 0xffff80002a695830 rbx 0xfffffd807f7d7820 rdx 0 rcx 0xc0001208 rax 0x1 r8 0xfffffd806c2cc470 r9 0xfffffd807f7d7820 r10 0xb6b77088e0f754ec r11 0x534e6a819e0c4e1a r12 0xffff80002a611558 r13 0xdead4110dead4110 r14 0xdead4110dead4110 r15 0xc0001208 rip 0xffffffff8260628f ktrops+0x4f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a6957b0 ss 0x10 ktrops+0x4f: movq 0x8(%r14),%r14 ddb> show proc PROC (syz-executor3250419383) tid=281886 pid=98659 tcnt=1 stat=onproc flags process=8000000 proc=0 runpri=17, usrpri=51, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a611d50,0xffff80002a610820 process=0xffff8000ffff25c8 user=0xffff80002a690000, vmspace=0xfffffd8074d0b2c8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 59721 524089 98769 0 2 0x8000000 syz-executor3250419383 *98659 281886 68322 0 7 0x8000000 syz-executor3250419383 89938 419700 4910 0 2 0x8000480 syz-executor3250419383 68322 94793 4910 0 3 0x8000080 nanoslp syz-executor3250419383 1264 302557 4910 0 2 0x8000480 syz-executor3250419383 98769 233526 4910 0 3 0x8000080 nanoslp syz-executor3250419383 54624 413283 4910 0 2 0x8000000 syz-executor3250419383 16136 384153 4910 0 2 0x8000000 syz-executor3250419383 28828 136713 4910 0 3 0x8000080 nanoslp syz-executor3250419383 67314 484641 4910 0 2 0x8000000 syz-executor3250419383 4910 129366 62090 0 3 0x8000082 nanoslp syz-executor3250419383 62090 324860 47797 0 3 0x810008a sigsusp ksh 47797 263090 57613 0 3 0x1800009a kqread sshd 14763 325076 1 0 3 0x18100083 ttyin getty 57613 69475 1 0 3 0x18000088 kqread sshd 31134 385260 23212 73 3 0x19100090 kqread syslogd 23212 195725 1 0 3 0x18100082 netio syslogd 67241 281746 1 0 3 0x18100080 kqread resolvd 35250 256923 54565 77 3 0x18100092 kqread dhcpleased 70907 60247 54565 77 3 0x18100092 kqread dhcpleased 54565 481876 1 0 3 0x18000080 kqread dhcpleased 15513 472546 0 0 3 0x14200 bored smr 79400 348575 0 0 3 0x14200 pgzero zerothread 37778 372883 0 0 3 0x14200 aiodoned aiodoned 70416 147417 0 0 3 0x14200 syncer update 76507 247244 0 0 3 0x14200 cleaner cleaner 23597 112686 0 0 3 0x14200 reaper reaper 34436 300627 0 0 3 0x14200 pgdaemon pagedaemon 28889 482753 0 0 3 0x14200 bored viomb 84388 347053 0 0 3 0x40014200 acpi0 acpi0 34927 282057 0 0 3 0x14200 bored softnet3 41084 356463 0 0 3 0x14200 bored softnet2 31125 315483 0 0 3 0x14200 bored softnet1 79122 427025 0 0 3 0x14200 bored softnet0 86833 467267 0 0 3 0x14200 bored systqmp 32885 266169 0 0 3 0x14200 bored systq 52457 366873 0 0 3 0x40014200 tmoslp softclock 56553 230837 0 0 3 0x40014200 idle0 1 425451 0 0 3 0x8000082 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 10137 6382K 6413K 166960K 11215 0 pcb 15 10K 10K 166960K 15 0 rtable 58 1K 2K 166960K 110 0 pf 12 6K 6K 166960K 12 0 ifaddr 11 5K 5K 166960K 11 0 ifgroup 17 1K 1K 166960K 17 0 counters 22 16K 16K 166960K 22 0 ioctlops 0 0K 2K 166960K 21 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1259 79K 79K 166960K 1275 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 1 0K 0K 166960K 1 0 proc 55 58K 59K 166960K 246 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 11 0K 0K 166960K 11 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 243 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 119 5K 6K 166960K 2432 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 31 62K 74K 166960K 977 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 3 0K 0K 166960K 3 0 temp 1 6788K 6852K 166960K 3038 0 kqueue 11 16K 18K 166960K 24 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 20 0 17 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 144 291 0 276 1 0 1 1 0 8 0 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpqe 32 84 0 84 1 0 1 1 0 8 1 tcpcb 808 8 0 5 1 0 1 1 0 8 0 arp 88 2 0 0 1 0 1 1 0 8 0 inpcb 360 26 0 20 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 97 0 0 7 0 7 7 0 8 0 art_table 32 98 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1772 0 244 96 0 96 96 0 8 0 ffsino 240 1772 0 244 90 0 90 90 0 8 0 nchpl 144 2215 0 551 63 0 63 63 0 8 1 uvmvnodes 80 1781 0 0 37 0 37 37 0 8 0 vnodes 216 1781 0 0 99 0 99 99 0 8 0 namei 1024 5512 0 5509 2 0 2 2 0 8 1 kstatmem 264 6 0 0 1 0 1 1 0 8 0 scxspl 216 6349 0 6349 2 0 2 2 1 8 2 plimitpl 152 16 0 10 1 0 1 1 0 8 0 sigapl 424 446 0 404 6 0 6 6 0 8 0 knotepl 120 4685 0 4656 2 0 2 2 0 8 1 kqueuepl 184 20 0 13 1 0 1 1 0 8 0 pipepl 288 87 0 84 1 0 1 1 0 8 0 fdescpl 432 430 0 407 4 0 4 4 0 8 1 filepl 120 1643 0 1585 3 0 3 3 0 8 1 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 17 0 9 1 0 1 1 0 8 0 pgrppl 48 17 0 9 1 0 1 1 0 8 0 ucredpl 104 66 0 56 1 0 1 1 0 8 0 zombiepl 144 407 0 404 1 0 1 1 0 8 0 processpl 1072 446 0 404 4 0 4 4 0 8 0 procpl 680 446 0 404 4 0 4 4 0 8 0 sockpl 488 337 0 313 5 0 5 5 0 8 1 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 10 0 10 1 0 1 1 0 8 1 mcl2k 2048 12258 0 12219 27 14 13 27 0 8 7 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 20054 0 20011 14 3 11 14 0 8 8 bufpl 280 2752 0 84 191 0 191 191 0 8 0 anonpl 24 206157 0 204173 24 0 24 24 0 188 12 amapchunkpl 152 9217 0 9013 9 0 9 9 0 158 0 amappl16 200 6242 0 6232 5 0 5 5 0 8 4 amappl15 192 18 0 18 1 0 1 1 0 8 1 amappl14 184 111 0 102 1 0 1 1 0 8 0 amappl13 176 11 0 11 1 0 1 1 0 8 1 amappl12 168 840 0 820 1 0 1 1 0 8 0 amappl11 160 70 0 60 1 0 1 1 0 8 0 amappl10 152 11 0 11 1 0 1 1 0 8 1 amappl9 144 125 0 125 1 0 1 1 0 8 1 amappl8 136 25 0 24 1 0 1 1 0 8 0 amappl7 128 21 0 20 1 0 1 1 0 8 0 amappl6 120 162 0 150 1 0 1 1 0 8 0 amappl5 112 124 0 112 1 0 1 1 0 8 0 amappl4 104 528 0 494 2 0 2 2 0 8 1 amappl3 96 2492 0 2449 2 0 2 2 0 8 0 amappl2 88 596 0 546 2 0 2 2 0 8 0 amappl1 80 9185 0 8737 11 0 11 11 0 8 1 amappl 88 2135 0 2061 2 0 2 2 0 92 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 253 0 253 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 430 0 407 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 430 0 407 1 0 1 1 0 8 0 vmmpekpl 168 5885 0 5869 1 0 1 1 0 8 0 vmmpepl 168 39003 0 37859 56 0 56 56 0 357 6 vmsppl 352 429 0 407 3 0 3 3 0 8 1 rwobjpl 24 20451 0 18003 15 0 15 15 0 8 0 pdppl 4096 866 0 814 78 14 64 64 0 8 12 pvpl 32 303377 0 298866 51 0 51 51 0 265 13 pmappl 216 429 0 407 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 330 0 31 9 0 9 9 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a611558,dead4110dead4110,0,c0001208,fffffd806c2cc470,fffffd807f7d7820) at ktrops+0x4f ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a611558,dead4110dead4110,0,c0001208,fffffd806c2cc470,fffffd807f7d7820) at ktrops+0x4f sys/kern/kern_ktrace.c:561 doktrace(fffffd806c2cc470,4,40001208,0,ffff80002a611558) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806c2cc470,4,40001208,0,ffff80002a611558) at doktrace+0x514 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a611558,ffff80002a695b00,ffff80002a695a50) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002a695b00) at syscall+0x538 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7650fb934400, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a611558,dead4110dead4110,0,c0001208,fffffd806c2cc470,fffffd807f7d7820) at ktrops+0x4f ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a611558,dead4110dead4110,0,c0001208,fffffd806c2cc470,fffffd807f7d7820) at ktrops+0x4f sys/kern/kern_ktrace.c:561 doktrace(fffffd806c2cc470,4,40001208,0,ffff80002a611558) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806c2cc470,4,40001208,0,ffff80002a611558) at doktrace+0x514 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a611558,ffff80002a695b00,ffff80002a695a50) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002a695b00) at syscall+0x538 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7650fb934400, count: -5 ddb>