kernel: protection fault trap, code=0 Stopped at solock_shared+0x1c: movq 0x8(%r12),%rax ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace solock_shared(ffff800000daca60) at solock_shared+0x1c sys/kern/uipc_socket2.c:351 soreceive(ffff800000daca60,0,ffff80002bc8bae8,0,0,ffff80002bc8b9fc,c2a94714e8683638) at soreceive+0x690 sys/kern/uipc_socket.c:934 fifo_read(ffff80002bc8ba50) at fifo_read+0xd2 sys/miscfs/fifofs/fifo_vnops.c:256 VOP_READ(fffffd80774d9638,ffff80002bc8bae8,64,fffffd807f7d7208) at VOP_READ+0xc3 sys/kern/vfs_vops.c:227 vn_rdwr(0,fffffd80774d9638,ffff800011a26740,1d,0,1,c9d60e35a618404a,0,ffff8000006aa000,0) at vn_rdwr+0x10a vndstrategy(fffffd806822d6d0) at vndstrategy+0x3e2 sys/dev/vnd.c:342 physio(ffffffff82415a00,2902,8000,ffffffff81ea4380,ffff80002bc8bfb0) at physio+0x27d sys/kern/kern_physio.c:162 spec_read(ffff80002bc8bda0) at spec_read+0x105 sys/kern/spec_vnops.c:215 VOP_READ(fffffd806ed0ceb8,ffff80002bc8bfb0,0,fffffd807f7d74e0) at VOP_READ+0xc3 sys/kern/vfs_vops.c:227 vn_read(fffffd80703598e8,ffff80002bc8bfb0,0) at vn_read+0x115 sys/kern/vfs_vnops.c:369 dofilereadv(ffff80002a21b738,3,ffff80002bc8bfb0,0,ffff80002bc8c070) at dofilereadv+0x1a1 sys/kern/sys_generic.c:247 sys_readv(ffff80002a21b738,ffff80002bc8c120,ffff80002bc8c070) at sys_readv+0xab sys/kern/sys_generic.c:194 syscall(ffff80002bc8c120) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002bc8c120) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x113234a62f0, count: -14 ddb{1}> show registers rdi 0xffff800032d17000 rsi 0x2a23 __ALIGN_SIZE+0x1a23 rbp 0xffff80002bc8b8c0 rbx 0 rdx 0xffff800032d17000 rcx 0x2a22 __ALIGN_SIZE+0x1a22 rax 0xffffffff811bc379 solock_shared+0x19 r8 0 r9 0x1 r10 0 r11 0xa3fa093f9643e28d r12 0x2bea2ab7f0dfe3bd r13 0x1 r14 0xffff800000daca60 r15 0x85 rip 0xffffffff811bc37c solock_shared+0x1c cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002bc8b890 ss 0 solock_shared+0x1c: movq 0x8(%r12),%rax ddb{1}> show proc PROC (syz-executor.2) tid=102188 pid=18438 tcnt=2 stat=onproc flags process=8000000 proc=4000000 runpri=24, usrpri=86, slppri=24, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff8000373d4d20,0xffff80002a1cc7f0 process=0xffff8000ffffb9c0 user=0xffff80002bc87000, vmspace=0xfffffd807f0026e0 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 79657 199708 40433 0 2 0x8000000 syz-executor.4 79657 258710 40433 0 7 0xc000000 syz-executor.4 31420 462110 9120 0 2 0x8000000 syz-executor.7 31420 54662 9120 0 3 0xc000080 fsleep syz-executor.7 83730 448691 45479 0 2 0x8000000 syz-executor.5 83730 136772 45479 0 3 0xc000080 fsleep syz-executor.5 95020 369026 10208 0 2 0x8000000 syz-executor.3 95020 404706 10208 0 3 0xc000080 fsleep syz-executor.3 8325 124590 40700 0 2 0x8000000 syz-executor.6 8325 160060 40700 0 3 0xc000080 fsleep syz-executor.6 18438 284569 60532 0 3 0x8000080 nanoslp syz-executor.2 *18438 102188 60532 0 7 0xc000000 syz-executor.2 29563 320971 30892 0 2 0x8000010 syz-executor.1 29563 318255 30892 0 3 0xc000090 bell syz-executor.1 29563 181702 30892 0 3 0xc000090 kqsel syz-executor.1 10858 126908 95959 0 2 0x8000000 syz-executor.0 10858 513497 95959 0 3 0xc000080 sbwait syz-executor.0 10858 187028 95959 0 3 0xc000080 fsleep syz-executor.0 95959 514306 23511 0 3 0x8000082 nanoslp syz-executor.0 10208 302506 23511 0 3 0x8000082 nanoslp syz-executor.3 9120 72656 23511 0 3 0x8000082 nanoslp syz-executor.7 45479 126622 23511 0 3 0x8000082 nanoslp syz-executor.5 60532 156120 23511 0 2 0x8000002 syz-executor.2 40433 237734 23511 0 3 0x8000082 nanoslp syz-executor.4 23026 440412 1 0 3 0x18100083 ttyin getty 40700 289213 23511 0 3 0x8000082 nanoslp syz-executor.6 30892 300975 23511 0 3 0x8000082 nanoslp syz-executor.1 56317 129733 0 0 3 0x14280 nfsidl nfsio 36023 295142 0 0 3 0x14280 nfsidl nfsio 82363 253474 0 0 3 0x14280 nfsidl nfsio 73179 334250 0 0 3 0x14280 nfsidl nfsio 16911 147907 0 0 3 0x14280 nfsidl nfsio 75653 426225 0 0 3 0x14280 nfsidl nfsio 26846 397708 0 0 3 0x14280 nfsidl nfsio 14744 55879 0 0 3 0x14280 nfsidl nfsio 79658 221644 0 0 3 0x14280 nfsidl nfsio 73008 162003 0 0 3 0x14280 nfsidl nfsio 28003 25870 0 0 3 0x14280 nfsidl nfsio 55800 473839 0 0 3 0x14280 nfsidl nfsio 76586 510371 0 0 3 0x14280 nfsidl nfsio 71312 412016 0 0 3 0x14280 nfsidl nfsio 33141 24466 0 0 3 0x14280 nfsidl nfsio 40216 18341 0 0 3 0x14280 nfsidl nfsio 94232 35800 0 0 3 0x14280 nfsidl nfsio 39141 133470 0 0 3 0x14280 nfsidl nfsio 80616 414895 0 0 3 0x14280 nfsidl nfsio 95352 50407 0 0 3 0x14280 nfsidl nfsio 78196 73907 0 0 3 0x14200 bored sosplice 23511 339848 89792 0 3 0x1a000082 wait syz-fuzzer 23511 188962 89792 0 3 0x1e000082 thrsleep syz-fuzzer 23511 339655 89792 0 3 0x1e000082 kqread syz-fuzzer 23511 213110 89792 0 3 0x1e000082 thrsleep syz-fuzzer 23511 35381 89792 0 3 0x1e000082 wait syz-fuzzer 23511 129021 89792 0 3 0x1e000082 thrsleep syz-fuzzer 23511 2766 89792 0 3 0x1e000082 wait syz-fuzzer 23511 469656 89792 0 3 0x1e000082 wait syz-fuzzer 23511 180012 89792 0 3 0x1e000082 wait syz-fuzzer 23511 463387 89792 0 3 0x1e000082 thrsleep syz-fuzzer 23511 119742 89792 0 3 0x1e000082 thrsleep syz-fuzzer 23511 140515 89792 0 3 0x1e000082 thrsleep syz-fuzzer 23511 17437 89792 0 3 0x1e000082 wait syz-fuzzer 23511 423495 89792 0 3 0x1e000082 wait syz-fuzzer 23511 316264 89792 0 3 0x1e000082 thrsleep syz-fuzzer 23511 448807 89792 0 3 0x1e000082 wait syz-fuzzer 89792 295110 84313 0 3 0x810008a sigsusp ksh 84313 476931 83514 0 3 0x1800009a kqread sshd 83514 455169 1 0 3 0x18000088 kqread sshd 7305 8442 84357 74 3 0x19100092 bpf pflogd 84357 129816 1 0 3 0x18000080 sbwait pflogd 98348 120369 9893 73 3 0x19100090 kqread syslogd 9893 11231 1 0 3 0x18100082 sbwait syslogd 52674 96897 1 0 3 0x18100080 kqread resolvd 26796 378247 0 0 3 0x14200 bored smr 41130 258460 0 0 2 0x14200 zerothread 1280 4650 0 0 3 0x14200 aiodoned aiodoned 43092 217608 0 0 3 0x14200 syncer update 37968 191376 0 0 3 0x14200 cleaner cleaner 44501 254167 0 0 3 0x14200 reaper reaper 85855 14121 0 0 3 0x14200 pgdaemon pagedaemon 81576 170383 0 0 3 0x14200 bored viomb 76204 331172 0 0 3 0x40014200 acpi0 acpi0 98583 316795 0 0 3 0x40014200 idle1 89518 172991 0 0 3 0x14200 bored softnet3 2464 48569 0 0 3 0x14200 bored softnet2 83836 373169 0 0 3 0x14200 bored softnet1 49745 118922 0 0 3 0x14200 bored softnet0 76365 354002 0 0 3 0x14200 bored systqmp 93132 414237 0 0 3 0x14200 bored systq 63898 435605 0 0 3 0x14200 tmoslp softclockmp 26141 364032 0 0 3 0x40014200 tmoslp softclock 17994 350502 0 0 3 0x40014200 idle0 1 327025 0 0 3 0x8080082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 18438 (syz-executor.2) thread 0xffff80002a21b738 (102188) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10185 6573K 6688K 166960K 12130 0 pcb 17 14K 16K 166960K 461 0 rtable 213 6K 8K 166960K 1718 0 pf 30 9K 10K 166960K 229 0 ifaddr 40 15K 16K 166960K 243 0 ifgroup 51 2K 2K 166960K 379 0 sysctl 4 1K 2K 166960K 17 0 counters 62 36K 36K 166960K 226 0 ioctlops 0 0K 4K 166960K 1646 0 iov 0 0K 32K 166960K 193 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1445 91K 91K 166960K 2971 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 74 0 VM map 2 1K 1K 166960K 2 0 sem 13 1K 1K 166960K 59 0 dirhash 12 2K 3K 166960K 87 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 18 65K 81K 166960K 3488 0 sigio 0 0K 0K 166960K 82 0 proc 64 67K 128K 166960K 1837 0 subproc 104 6K 7K 166960K 597 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 492 0 in_multi 87 6K 7K 166960K 605 0 ether_multi 1 0K 0K 166960K 23 0 mrt 1 0K 0K 166960K 11 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 109 493K 493K 166960K 109 0 exec 0 0K 1K 166960K 1252 0 pfkey data 0 0K 0K 166960K 6 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 331 175K 180K 166960K 31979 0 UVM aobj 69 3K 3K 166960K 72 0 pinsyscall 36 72K 108K 166960K 5661 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 1K 166960K 296 0 NDP 11 0K 1K 166960K 181 0 temp 78 6816K 7312K 166960K 99531 0 kqueue 7 12K 28K 166960K 419 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> 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 120 352 0 351 1 0 1 1 0 8 0 rtentry 112 583 0 487 5 1 4 4 0 8 0 unpcb 144 2345 0 2332 5 4 1 2 0 8 0 syncache 336 10 0 10 7 7 0 1 0 8 0 tcpqe 32 24 0 24 2 2 0 1 0 8 0 tcpcb 808 902 0 896 12 11 1 2 0 8 0 arp 120 111 0 95 1 0 1 1 0 8 0 inpcb 392 3311 0 3299 22 20 2 9 0 8 0 nd6 136 147 0 126 1 0 1 1 0 8 0 pkpcb 40 23 0 23 12 12 0 1 0 8 0 kcovpl 48 45 0 37 1 0 1 1 0 8 0 ppxss 1168 13 0 13 8 8 0 1 0 8 0 pffrag 232 16 0 9 1 0 1 1 0 482 0 pffrnode 88 16 0 9 1 0 1 1 0 8 0 pffrent 40 71 0 63 1 0 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 24 273 0 198 1 0 1 1 0 8 0 pfstkey 128 273 0 198 3 0 3 3 0 8 0 pfstate 376 273 0 198 10 2 8 8 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 2188 0 1782 46 18 28 31 0 8 0 art_table 32 2190 0 1782 4 0 4 4 0 8 0 art_node 16 570 0 484 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 10 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 54 0 43 1 0 1 1 0 8 0 shmpl 112 69 0 3 2 0 2 2 0 8 0 dirhash 1024 67 0 50 3 0 3 3 0 8 0 dino2pl 256 6732 0 5198 97 0 97 97 0 8 0 ffsino 272 6732 0 5198 103 0 103 103 0 8 0 nchpl 144 11704 0 9956 67 0 67 67 0 8 0 uvmvnodes 80 6146 0 0 126 0 126 126 0 8 0 vnodes 216 6146 0 0 342 0 342 342 0 8 0 namei 1024 40012 0 40012 4 3 1 2 0 8 1 percpumem 16 127 0 82 1 0 1 1 0 8 0 vcpupl 3904 10 0 1 3 1 2 2 0 8 0 vmpool 696 23 0 14 2 1 1 1 0 8 0 kstatmem 264 186 0 164 2 0 2 2 0 8 0 scsiplug 72 10 0 10 6 6 0 1 0 8 0 scxspl 216 44467 0 44467 21 20 1 8 1 8 1 plimitpl 152 463 0 448 1 0 1 1 0 8 0 sigapl 424 3758 0 3691 9 0 9 9 0 8 0 futexpl 64 44141 0 44136 1 0 1 1 0 8 0 knotepl 120 650 0 0 17 0 17 17 0 8 0 kqueuepl 216 818 0 810 1 0 1 1 0 8 0 pipepl 320 612 0 583 3 0 3 3 0 8 0 fdescpl 496 3717 0 3689 7 2 5 5 0 8 0 filepl 152 21232 0 20987 18 8 10 14 0 8 0 lockfpl 104 957 0 956 2 1 1 2 0 8 0 lockfspl 48 343 0 342 1 0 1 1 0 8 0 sessionpl 144 68 0 52 1 0 1 1 0 8 0 pgrppl 48 113 0 97 1 0 1 1 0 8 0 ucredpl 104 3164 0 3154 1 0 1 1 0 8 0 zombiepl 144 3691 0 3691 3 2 1 1 0 8 1 processpl 1136 3758 0 3691 6 0 6 6 0 8 0 procpl 656 7471 0 7379 11 2 9 9 0 8 0 srpgc 96 27 0 27 10 10 0 1 0 8 0 sosppl 168 63 0 62 11 10 1 1 0 8 0 sockpl 664 6065 0 6039 19 16 3 9 0 8 0 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 8 0 0 1 0 1 1 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 8 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 384 0 0 39 1 38 39 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 1079 0 0 61 0 61 61 0 8 0 bufpl 280 12497 0 6241 447 0 447 447 0 8 0 anonpl 24 533146 0 527054 140 83 57 68 0 186 0 amapchunkpl 152 102768 0 102069 80 47 33 40 0 158 2 amappl16 200 11907 0 11787 65 54 11 23 0 8 0 amappl15 192 13 0 13 2 2 0 1 0 8 0 amappl14 184 326 0 311 4 2 2 2 0 8 0 amappl13 176 45 0 44 1 0 1 1 0 8 0 amappl12 168 4959 0 4927 3 1 2 2 0 8 0 amappl11 160 60 0 52 1 0 1 1 0 8 0 amappl10 152 106 0 90 1 0 1 1 0 8 0 amappl9 144 196 0 195 3 2 1 1 0 8 0 amappl8 136 695 0 582 5 0 5 5 0 8 0 amappl7 128 77 0 63 1 0 1 1 0 8 0 amappl6 120 850 0 829 2 1 1 2 0 8 0 amappl5 112 356 0 344 1 0 1 1 0 8 0 amappl4 104 955 0 919 3 1 2 3 0 8 0 amappl3 96 19739 0 19650 3 0 3 3 0 8 0 amappl2 88 4432 0 4369 4 2 2 4 0 8 0 amappl1 80 24358 0 23898 23 10 13 23 0 8 0 amappl 88 30829 0 30619 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 71 0 3 2 0 2 2 0 8 0 uaddrrnd 24 3740 0 3703 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3740 0 3703 1 0 1 1 0 8 0 vmmpekpl 168 29002 0 28928 4 0 4 4 0 8 0 vmmpepl 168 248933 0 246973 177 79 98 121 0 357 0 vmsppl 440 3739 0 3703 6 1 5 5 0 8 0 rwobjpl 56 69326 0 61993 111 7 104 104 0 8 0 pdppl 4096 7487 0 7415 320 248 72 77 0 8 0 pvpl 32 49109 0 0 399 2 397 397 0 265 0 pmappl 248 3739 0 3703 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 715 0 298 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82cf2ff0) 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(ffffffff82e9c918) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82e9c918) at __mp_lock+0x122 sys/kern/kern_lock.c:147 vn_read(fffffd805d6258f0,ffff800030536688,1) at vn_read+0x4d sys/kern/vfs_vnops.c:351 dofilereadv(ffff80002a1cc2c0,3,ffff800030536688,1,ffff800030536740) at dofilereadv+0x1a1 sys/kern/sys_generic.c:247 sys_pread(ffff80002a1cc2c0,ffff8000305367f0,ffff800030536740) at sys_pread+0x93 sys/kern/vfs_syscalls.c:3271 syscall(ffff8000305367f0) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff8000305367f0) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x89d5b46e0e0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at solock_shared+0x1c: movq 0x8(%r12),%rax ddb{1}> trace solock_shared(ffff800000daca60) at solock_shared+0x1c sys/kern/uipc_socket2.c:351 soreceive(ffff800000daca60,0,ffff80002bc8bae8,0,0,ffff80002bc8b9fc,c2a94714e8683638) at soreceive+0x690 sys/kern/uipc_socket.c:934 fifo_read(ffff80002bc8ba50) at fifo_read+0xd2 sys/miscfs/fifofs/fifo_vnops.c:256 VOP_READ(fffffd80774d9638,ffff80002bc8bae8,64,fffffd807f7d7208) at VOP_READ+0xc3 sys/kern/vfs_vops.c:227 vn_rdwr(0,fffffd80774d9638,ffff800011a26740,1d,0,1,c9d60e35a618404a,0,ffff8000006aa000,0) at vn_rdwr+0x10a vndstrategy(fffffd806822d6d0) at vndstrategy+0x3e2 sys/dev/vnd.c:342 physio(ffffffff82415a00,2902,8000,ffffffff81ea4380,ffff80002bc8bfb0) at physio+0x27d sys/kern/kern_physio.c:162 spec_read(ffff80002bc8bda0) at spec_read+0x105 sys/kern/spec_vnops.c:215 VOP_READ(fffffd806ed0ceb8,ffff80002bc8bfb0,0,fffffd807f7d74e0) at VOP_READ+0xc3 sys/kern/vfs_vops.c:227 vn_read(fffffd80703598e8,ffff80002bc8bfb0,0) at vn_read+0x115 sys/kern/vfs_vnops.c:369 dofilereadv(ffff80002a21b738,3,ffff80002bc8bfb0,0,ffff80002bc8c070) at dofilereadv+0x1a1 sys/kern/sys_generic.c:247 sys_readv(ffff80002a21b738,ffff80002bc8c120,ffff80002bc8c070) at sys_readv+0xab sys/kern/sys_generic.c:194 syscall(ffff80002bc8c120) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002bc8c120) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x113234a62f0, count: -14