kernel: protection fault trap, code=0 Stopped at ktrops+0x4e: movq 0x8(%rbx),%r14 ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace ktrops(ffff80002bca6808,deaf4152deaf4152,0,80000200,fffffd8067513000,fffffd807f7d7548) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002bca6808,deaf4152deaf4152,0,80000200,fffffd8067513000,fffffd807f7d7548) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd8067513000,4,200,0,ffff80002bca6808) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8067513000,4,200,0,ffff80002bca6808) at doktrace+0x524 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002bca6808,ffff800038e42310,ffff800038e42260) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff800038e42310) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff800038e42310) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5ae6d0d78e0, count: -5 ddb{0}> show registers rdi 0xffff80002bca6808 rsi 0xdeaf4152deaf4152 rbp 0xffff800038e42030 rbx 0xdeaf4152deaf4152 rdx 0 rcx 0xffff80002bca6808 rax 0xffffffff82d2fff0 cpu_info_full_primary+0x1ff0 r8 0xfffffd8067513000 r9 0xfffffd807f7d7548 r10 0x755a9a7762082686 r11 0x7132aa700fde981a r12 0xdeaf4152deaf4152 r13 0xfffffd807f7d7548 r14 0xffff80002bca6808 r15 0x80000200 __kernel_virt_to_phys+0x200 rip 0xffffffff81266c6e ktrops+0x4e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800038e41fb0 ss 0x10 ktrops+0x4e: movq 0x8(%rbx),%r14 ddb{0}> show proc PROC (syz-executor.5) tid=522752 pid=79318 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=83, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002bca5020,0xffff80002a23d018 process=0xffff800038dcd660 user=0xffff800038e3d000, vmspace=0xfffffd806b855718 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 68785 394129 81579 0 2 0 syz-executor.4 58349 264724 91970 0 2 0 syz-executor.7 43430 477455 33048 0 2 0 syz-executor.2 94359 308850 6568 0 2 0 syz-executor.6 79318 367167 67753 0 2 0 syz-executor.5 79318 333143 67753 0 2 0x4000000 syz-executor.5 *79318 522752 67753 0 7 0x4000000 syz-executor.5 33048 295480 50313 0 3 0x82 nanoslp syz-executor.2 18474 440997 50313 0 2 0x2 syz-executor.3 16509 353992 0 0 3 0x14280 nfsidl nfsio 33932 16458 0 0 3 0x14280 nfsidl nfsio 6932 369684 0 0 3 0x14280 nfsidl nfsio 9405 403938 0 0 3 0x14280 nfsidl nfsio 26227 8942 0 0 3 0x14280 nfsidl nfsio 63431 140530 0 0 3 0x14280 nfsidl nfsio 1388 463529 0 0 3 0x14280 nfsidl nfsio 35282 361962 0 0 3 0x14280 nfsidl nfsio 53584 183370 0 0 3 0x14280 nfsidl nfsio 22976 246769 0 0 3 0x14280 nfsidl nfsio 50012 368098 0 0 3 0x14280 nfsidl nfsio 27318 40644 0 0 3 0x14280 nfsidl nfsio 74190 316828 0 0 3 0x14280 nfsidl nfsio 97528 473738 0 0 3 0x14280 nfsidl nfsio 26191 505523 0 0 3 0x14280 nfsidl nfsio 98762 214092 0 0 3 0x14280 nfsidl nfsio 81288 214119 0 0 3 0x14280 nfsidl nfsio 76446 122316 0 0 3 0x14280 nfsidl nfsio 89613 348380 0 0 3 0x14280 nfsidl nfsio 371 250575 0 0 3 0x14280 nfsidl nfsio 50917 320886 76181 0 3 0x100082 netio arp 76181 203216 1 0 3 0x10008a sigsusp sh 6568 222188 50313 0 3 0x82 nanoslp syz-executor.6 67753 173071 50313 0 3 0x82 nanoslp syz-executor.5 91970 168419 50313 0 3 0x82 nanoslp syz-executor.7 2312 168593 50313 0 2 0x2 syz-executor.1 81579 318841 50313 0 2 0x2 syz-executor.4 36980 56749 50313 0 3 0x82 nanoslp syz-executor.0 50313 172837 5372 0 3 0x2000082 wait syz-fuzzer 50313 184981 5372 0 3 0x6000082 nanoslp syz-fuzzer 50313 255952 5372 0 3 0x6000082 wait syz-fuzzer 50313 131695 5372 0 3 0x6000082 wait syz-fuzzer 50313 166901 5372 0 3 0x6000082 thrsleep syz-fuzzer 50313 94730 5372 0 3 0x6000082 thrsleep syz-fuzzer 50313 338316 5372 0 3 0x6000082 wait syz-fuzzer 50313 313778 5372 0 3 0x6000082 wait syz-fuzzer 50313 519487 5372 0 3 0x6000082 wait syz-fuzzer 50313 116024 5372 0 3 0x6000082 thrsleep syz-fuzzer 50313 510816 5372 0 3 0x6000082 thrsleep syz-fuzzer 50313 280709 5372 0 3 0x6000082 wait syz-fuzzer 50313 397531 5372 0 3 0x6000082 wait syz-fuzzer 50313 469927 5372 0 3 0x6000082 thrsleep syz-fuzzer 50313 434261 5372 0 2 0x6000002 syz-fuzzer 50313 246818 5372 0 2 0x6000002 syz-fuzzer 5372 513411 78689 0 3 0x10008a sigsusp ksh 78689 301871 72217 0 7 0x12 sshd 99777 243241 1 0 3 0x100083 ttyin getty 72217 521953 1 0 3 0x88 kqread sshd 31862 453883 8520 74 3 0x1100092 bpf pflogd 8520 29188 1 0 3 0x80 netio pflogd 69075 482508 19419 73 3 0x1100090 kqread syslogd 19419 68872 1 0 3 0x100082 netio syslogd 17789 431721 1 0 3 0x100080 kqread resolvd 18712 415421 19652 77 3 0x100092 kqread dhcpleased 95994 115490 19652 77 3 0x100092 kqread dhcpleased 19652 274307 1 0 3 0x80 kqread dhcpleased 68251 463395 0 0 3 0x14200 bored smr 99361 494551 0 0 2 0x14200 zerothread 73338 50148 0 0 3 0x14200 aiodoned aiodoned 31691 337126 0 0 3 0x14200 syncer update 78441 259709 0 0 3 0x14200 cleaner cleaner 9926 44897 0 0 3 0x14200 reaper reaper 63786 214172 0 0 3 0x14200 pgdaemon pagedaemon 87937 200430 0 0 3 0x14200 bored viomb 23665 188341 0 0 3 0x40014200 acpi0 acpi0 52021 68915 0 0 3 0x40014200 idle1 67944 323377 0 0 3 0x14200 bored softnet3 30379 486535 0 0 3 0x14200 bored softnet2 86043 18060 0 0 3 0x14200 bored softnet1 7641 100024 0 0 3 0x14200 bored softnet0 66803 368256 0 0 3 0x14200 bored systqmp 96364 121286 0 0 3 0x14200 bored systq 22299 249758 0 0 3 0x14200 tmoslp softclockmp 85742 99636 0 0 3 0x40014200 tmoslp softclock 58071 259471 0 0 3 0x40014200 idle0 1 385507 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 79318 (syz-executor.5) thread 0xffff80002bca6808 (522752) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d9ef38) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x46f sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19b sys/kern/kern_synch.c:414 #4 getblk+0x14c sys/kern/vfs_bio.c:1025 #5 bread+0x3e bio_doread sys/kern/vfs_bio.c:430 [inline] #5 bread+0x3e sys/kern/vfs_bio.c:475 #6 ffs_update+0x14f sys/ufs/ffs/ffs_inode.c:91 #7 ufs_inactive+0x229 sys/ufs/ufs/ufs_inode.c:95 #8 VOP_INACTIVE+0xc5 sys/kern/vfs_vops.c:489 #9 vrele+0xd3 sys/kern/vfs_subr.c:827 #10 ktrsettrace+0xb7 sys/kern/kern_ktrace.c:122 #11 ktrops+0x1a8 sys/kern/kern_ktrace.c:564 #12 doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] #12 doktrace+0x524 sys/kern/kern_ktrace.c:508 #13 sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 #14 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #14 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #15 Xsyscall+0x128 Process 2312 (syz-executor.1) thread 0xffff80002a277aa0 (168593) exclusive rrwlock inode r = 0 (0xfffffd8070ccdd58) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x1c5 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfb sys/ufs/ufs/ufs_vnops.c:1127 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3069 #10 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #10 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c0755e8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3054 #8 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10186 6499K 6508K 166960K 14948 0 pcb 15 14K 16K 166960K 1574 0 rtable 234 6K 6K 166960K 422 0 pf 32 9K 10K 166960K 49 0 ifaddr 45 15K 15K 166960K 57 0 ifgroup 55 2K 2K 166960K 67 0 sysctl 3 0K 0K 166960K 3 0 counters 64 36K 36K 166960K 70 0 ioctlops 0 0K 4K 166960K 8154 0 iov 0 0K 8K 166960K 1651 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1293 81K 81K 166960K 1336 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 544 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 1858 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 17 61K 93K 166960K 54775 0 sigio 0 0K 0K 166960K 1924 0 proc 67 91K 115K 166960K 603 0 subproc 117 7K 7K 166960K 143 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 99 7K 7K 166960K 122 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 422 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 341 84K 102K 166960K 490089 0 UVM aobj 131 4K 4K 166960K 131 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 12 0K 1K 166960K 35 0 temp 74 6708K 6836K 166960K 250444 0 kqueue 12 18K 18K 166960K 22 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 41 0 37 1 0 1 1 0 8 0 rtentry 112 136 0 26 4 0 4 4 0 8 0 unpcb 144 3421 0 3406 32 31 1 5 0 8 0 syncache 320 4 0 4 1 1 0 1 0 8 0 tcpqe 32 276 0 276 1 1 0 1 0 8 0 tcpcb 808 729 0 724 16 15 1 7 0 8 0 arp 120 23 0 5 1 0 1 1 0 8 0 inpcb 376 5462 0 5454 112 107 5 11 0 8 4 nd6 136 30 0 6 1 0 1 1 0 8 0 kcovpl 48 11 0 2 1 0 1 1 0 8 0 pffrag 232 36 0 18 4 2 2 2 0 482 0 pffrnode 88 27 0 14 2 1 1 1 0 8 0 pffrent 40 1213 0 1195 2 1 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 62 0 59 1 0 1 1 0 8 0 pfstkey 128 62 0 59 1 0 1 1 0 8 0 pfstate 376 62 0 59 4 3 1 3 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 543 0 91 29 0 29 29 0 8 0 art_table 32 544 0 91 4 0 4 4 0 8 0 art_node 16 135 0 35 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 3 2 1 1 1 0 8 0 semapl 112 1856 0 1846 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 62557 0 60663 119 0 119 119 0 8 0 ffsino 272 62557 0 60663 127 0 127 127 0 8 0 nchpl 144 138034 0 136383 64 0 64 64 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 356857 0 356856 2 1 1 2 0 8 0 percpumem 16 49 0 3 1 0 1 1 0 8 0 kstatmem 264 30 0 6 2 0 2 2 0 8 0 scxspl 216 356990 0 356990 12 11 1 8 1 8 1 plimitpl 152 37 0 20 1 0 1 1 0 8 0 sigapl 424 55115 0 55046 11 3 8 9 0 8 0 futexpl 64 263271 0 263271 1 0 1 1 0 8 1 knotepl 120 108 0 0 4 0 4 4 0 8 0 kqueuepl 216 18 0 10 1 0 1 1 0 8 0 pipepl 320 11949 0 11918 188 182 6 13 0 8 3 fdescpl 496 55077 0 55047 5 0 5 5 0 8 0 filepl 152 176013 0 175754 204 188 16 22 0 8 5 lockfpl 104 15412 0 15410 13 12 1 2 0 8 0 lockfspl 48 4406 0 4404 1 0 1 1 0 8 0 sessionpl 144 27 0 9 1 0 1 1 0 8 0 pgrppl 48 5397 0 5378 1 0 1 1 0 8 0 ucredpl 104 108 0 95 1 0 1 1 0 8 0 zombiepl 144 55047 0 55046 1 0 1 1 0 8 0 processpl 1136 55115 0 55046 7 1 6 6 0 8 0 procpl 680 127199 0 127113 28 19 9 10 0 8 1 sockpl 584 8924 0 8897 119 114 5 12 0 8 3 mcl64k 65536 23 0 0 3 0 3 3 0 8 0 mcl16k 16384 11 0 0 2 0 2 2 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 22 0 0 2 0 2 2 0 8 0 mcl8k 8192 33 0 0 3 0 3 3 0 8 0 mcl4k 4096 42 0 0 4 1 3 3 0 8 0 mcl2k2 2112 17 0 0 2 0 2 2 0 8 0 mcl2k 2048 383 0 0 34 11 23 34 0 8 2 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 1045 0 0 21 10 11 19 0 8 0 bufpl 280 61530 0 55211 452 0 452 452 0 8 0 anonpl 24 3872129 0 3864486 115 56 59 72 0 186 0 amapchunkpl 152 1532260 0 1531628 143 110 33 40 0 158 3 amappl16 200 54127 0 53952 15 4 11 11 0 8 0 amappl15 192 11 0 11 2 2 0 1 0 8 0 amappl14 184 185 0 170 2 1 1 2 0 8 0 amappl13 176 49 0 47 1 0 1 1 0 8 0 amappl12 168 55800 0 55768 4 2 2 3 0 8 0 amappl11 160 79 0 65 1 0 1 1 0 8 0 amappl10 152 44 0 32 1 0 1 1 0 8 0 amappl9 144 300 0 299 2 1 1 1 0 8 0 amappl8 136 1231 0 1115 5 0 5 5 0 8 0 amappl7 128 221 0 194 2 0 2 2 0 8 0 amappl6 120 405 0 392 1 0 1 1 0 8 0 amappl5 112 320 0 308 1 0 1 1 0 8 0 amappl4 104 2798 0 2763 3 1 2 2 0 8 0 amappl3 96 307582 0 307508 5 2 3 4 0 8 0 amappl2 88 57795 0 57714 6 4 2 3 0 8 0 amappl1 80 192371 0 191789 23 10 13 23 0 8 0 amappl 88 486140 0 485955 6 0 6 6 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 55078 0 55048 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 55078 0 55048 1 0 1 1 0 8 0 vmmpekpl 168 335831 0 335774 3 0 3 3 0 8 0 vmmpepl 168 2936453 0 2934321 230 126 104 118 0 357 1 vmsppl 448 55077 0 55048 6 2 4 5 0 8 0 rwobjpl 56 613950 0 606565 109 3 106 106 0 8 0 pdppl 4096 110163 0 110096 1255 1184 71 83 0 8 4 pvpl 32 44658 0 0 363 2 361 361 0 265 0 pmappl 248 55077 0 55048 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1775 0 1359 12 0 12 12 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ktrops(ffff80002bca6808,deaf4152deaf4152,0,80000200,fffffd8067513000,fffffd807f7d7548) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002bca6808,deaf4152deaf4152,0,80000200,fffffd8067513000,fffffd807f7d7548) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd8067513000,4,200,0,ffff80002bca6808) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8067513000,4,200,0,ffff80002bca6808) at doktrace+0x524 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002bca6808,ffff800038e42310,ffff800038e42260) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff800038e42310) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff800038e42310) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5ae6d0d78e0, count: -5 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029cfbff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82d9ed30) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d9ed30) at __mp_lock+0x122 sys/kern/kern_lock.c:147 doppoll(ffff80002a155d50,5dd244febd0,4,0,ffff80002a1aad94,ffff80002a1aae30) at doppoll+0x159 sys/kern/sys_generic.c:950 sys_ppoll(ffff80002a155d50,ffff80002a1aaee0,ffff80002a1aae30) at sys_ppoll+0x137 sys/kern/sys_generic.c:916 syscall(ffff80002a1aaee0) at syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a1aaee0) at syscall+0x5ae sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77f0ce2c6d60, count: -8