kernel: protection fault trap, code=0 Stopped at sblock+0x4a: movq 0x8(%rax),%rax ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace sblock(fffffd806aa77708,fffffd806aa77820,1) at sblock+0x4a soassertlocked sys/kern/uipc_socket2.c:323 [inline] sblock(fffffd806aa77708,fffffd806aa77820,1) at sblock+0x4a sys/kern/uipc_socket2.c:378 sosend(fffffd806aa77708,0,ffff80002653d060,0,0,0) at sosend+0x280 sys/kern/uipc_socket.c:517 fifo_write(ffff80002653cfb0) at fifo_write+0x7c sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd80686cb628,ffff80002653d060,3,fffffd807f7d7900) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 ktrwriteraw(ffff800021610550,fffffd80686cb628,fffffd807f7d7900,ffff80002653d120,ffff80002653d100) at ktrwriteraw+0x13d sys/kern/kern_ktrace.c:666 ktrstruct(ffff800021610550,ffffffff825fe320,ffff80002653d210,10) at ktrstruct+0x16f ktrwrite2 sys/kern/kern_ktrace.c:631 [inline] ktrstruct(ffff800021610550,ffffffff825fe320,ffff80002653d210,10) at ktrstruct+0x16f sys/kern/kern_ktrace.c:315 sys_nanosleep(ffff800021610550,ffff80002653d280,ffff80002653d2e0) at sys_nanosleep+0xe0 sys/kern/kern_time.c:291 syscall(ffff80002653d350) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdbe60, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff80002653ce70 rbx 0xfffffd806aa77820 rdx 0 rcx 0xffff800021610554 rax 0x93e59b62bf6a5db5 r8 0 r9 0 r10 0xe7f1f8167cac703d r11 0x68c37dd0a4dce544 r12 0xfffffd806aa77701 r13 0x1 r14 0xfffffd806aa77870 r15 0xfffffd806aa77708 rip 0xffffffff81193c6a sblock+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002653ce10 ss 0x10 sblock+0x4a: movq 0x8(%rax),%rax ddb> show proc PROC (syz-executor.4) pid=320179 stat=onproc flags process=2 proc=1 pri=24, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff8000215f02a0,0xffff800021610aa0 process=0xffff800021609798 user=0xffff800026538000, vmspace=0xfffffd806c6a0230 estcpu=33, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 63600 220048 80621 0 3 0x80 nanoslp syz-executor.2 63600 484179 80621 0 3 0x4000080 bell syz-executor.2 97185 196207 70079 0 3 0x80 nanoslp syz-executor.6 97185 69387 70079 0 2 0x4000081 syz-executor.6 97185 360020 70079 0 2 0x4000081 syz-executor.6 10405 504283 60513 0 3 0x82 piperd syz-executor.1 74918 80383 60513 0 3 0x82 piperd syz-executor.7 11529 287375 0 0 3 0x14200 bored sosplice 13909 223573 60513 0 2 0x83 syz-executor.3 70079 434078 60513 0 2 0x83 syz-executor.6 *51564 320179 60513 0 7 0x3 syz-executor.4 80621 171118 60513 0 2 0x83 syz-executor.2 21128 469885 60513 0 2 0x83 syz-executor.5 24147 8778 60513 0 2 0x83 syz-executor.0 60513 123357 45974 0 3 0x82 thrsleep syz-fuzzer 60513 178720 45974 0 2 0x4000083 syz-fuzzer 60513 464803 45974 0 3 0x4000082 thrsleep syz-fuzzer 60513 320892 45974 0 3 0x4000082 thrsleep syz-fuzzer 60513 313792 45974 0 3 0x4000082 thrsleep syz-fuzzer 60513 138189 45974 0 2 0x4000083 syz-fuzzer 60513 209648 45974 0 3 0x4000082 thrsleep syz-fuzzer 60513 308731 45974 0 3 0x4000082 thrsleep syz-fuzzer 45974 227657 61457 0 3 0x10008a sigsusp ksh 61457 101959 42139 0 3 0x9a kqread sshd 73691 101487 1 0 3 0x100083 ttyin getty 42139 160476 1 0 3 0x88 kqread sshd 36347 85166 35084 73 3 0x1100090 kqread syslogd 35084 155917 1 0 3 0x100082 netio syslogd 64391 413295 1 0 3 0x100080 kqread resolvd 26958 20129 28423 77 3 0x100092 kqread dhcpleased 73559 303073 28423 77 3 0x100092 kqread dhcpleased 28423 60929 1 0 3 0x80 kqread dhcpleased 10620 329164 0 0 3 0x14200 bored smr 7723 283700 0 0 2 0x14200 zerothread 34653 424851 0 0 3 0x14200 aiodoned aiodoned 33421 362629 0 0 3 0x14200 syncer update 84553 47234 0 0 3 0x14200 cleaner cleaner 23542 348021 0 0 3 0x14200 reaper reaper 20056 79873 0 0 3 0x14200 pgdaemon pagedaemon 51496 122024 0 0 3 0x14200 bored viomb 19671 4020 0 0 3 0x40014200 acpi0 acpi0 95788 6742 0 0 3 0x14200 bored softnet 27926 254197 0 0 3 0x14200 bored softnet 82051 72115 0 0 3 0x14200 bored softnet 68715 50304 0 0 3 0x14200 bored softnet 58979 217659 0 0 3 0x14200 bored systqmp 73837 134917 0 0 3 0x14200 bored systq 63076 161060 0 0 3 0x40014200 bored softclock 43090 37899 0 0 3 0x40014200 idle0 1 286999 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 10175 6395K 7693K 78643K 15445 0 pcb 13 9K 9K 78643K 152 0 rtable 125 4K 7K 78643K 544 0 ifaddr 52 12K 17K 78643K 216 0 sysctl 2 0K 0K 78643K 2 0 counters 23 16K 17K 78643K 53 0 ioctlops 0 0K 4K 78643K 172 0 iov 0 0K 16K 78643K 111 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1341 84K 84K 78643K 2328 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 1K 78643K 126 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 12 41K 69K 78643K 916 0 sigio 0 0K 0K 78643K 10 0 proc 56 58K 83K 78643K 578 0 subproc 104 6K 6K 78643K 143 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 8 0 in_multi 40 2K 6K 78643K 152 0 ether_multi 1 0K 0K 78643K 1 0 mrt 0 0K 0K 78643K 6 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 175 784K 784K 78643K 175 0 exec 0 0K 2K 78643K 724 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 7 26K 26K 78643K 7 0 UVM amap 220 231K 232K 78643K 6366 0 UVM aobj 8 6K 6K 78643K 8 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 23 0 NDP 7 0K 2K 78643K 61 0 temp 133 4767K 4831K 78643K 18310 0 kqueue 12 18K 24K 78643K 99 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 120 129 0 126 3 2 1 3 0 8 0 rtentry 112 163 0 110 4 0 4 4 0 8 0 unpcb 136 931 0 918 11 9 2 7 0 8 1 syncache 296 10 0 10 2 2 0 1 0 8 0 tcpcb 736 232 0 228 9 7 2 7 0 8 1 arp 88 26 0 18 1 0 1 1 0 8 0 inpcb 312 689 0 682 9 7 2 6 0 8 1 nd6 48 37 0 29 1 0 1 1 0 8 0 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1152 6 0 6 1 1 0 1 0 8 0 pfrktable 1344 3 0 3 1 1 0 1 0 8 0 pftag 88 3 0 3 1 0 1 1 0 8 1 pfrule 1360 11 0 11 3 2 1 1 0 8 1 rttmr 64 3 0 3 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 657 0 438 29 6 23 29 0 8 5 art_table 32 658 0 438 4 0 4 4 0 8 0 art_node 16 162 0 113 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 7 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 114 0 104 1 0 1 1 0 8 0 shmpl 112 5 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2668 0 1241 90 0 90 90 0 8 0 ffsino 240 2668 0 1241 85 0 85 85 0 8 0 nchpl 144 4018 0 2381 63 0 63 63 0 8 0 uvmvnodes 80 3573 0 0 73 0 73 73 0 8 0 vnodes 224 3573 0 0 211 0 211 211 0 8 0 namei 1024 15248 0 15247 2 1 1 2 0 8 0 vcpupl 1984 11 0 0 2 0 2 2 0 8 0 vmpool 528 14 0 3 1 0 1 1 0 8 0 kstatmem 264 74 0 60 2 0 2 2 0 8 0 scxspl 216 11603 0 11603 11 9 2 8 0 8 2 plimitpl 152 215 0 200 1 0 1 1 0 8 0 sigapl 424 1196 0 1153 6 0 6 6 0 8 0 futexpl 64 9834 0 9834 1 0 1 1 0 8 1 knotepl 120 28136 0 28056 15 10 5 11 0 8 2 kqueuepl 184 171 0 163 1 0 1 1 0 8 0 pipepl 304 293 0 265 7 2 5 5 0 8 2 fdescpl 432 1179 0 1156 4 0 4 4 0 8 0 filepl 120 8655 0 8417 23 11 12 16 0 8 4 lockfpl 104 203 0 201 1 0 1 1 0 8 0 lockfspl 48 62 0 60 1 0 1 1 0 8 0 sessionpl 144 26 0 10 1 0 1 1 0 8 0 pgrppl 48 26 0 10 1 0 1 1 0 8 0 ucredpl 96 1324 0 1314 1 0 1 1 0 8 0 zombiepl 144 1156 0 1153 1 0 1 1 0 8 0 processpl 1000 1196 0 1153 7 1 6 6 0 8 0 procpl 672 2544 0 2491 8 1 7 7 0 8 1 sosppl 168 6 0 6 2 1 1 1 0 8 1 sockpl 448 1749 0 1726 50 43 7 30 0 8 4 mcl64k 65536 22 0 22 3 2 1 1 0 8 1 mcl16k 16384 6 0 6 2 2 0 1 0 8 0 mcl12k 12288 25 0 25 4 3 1 1 0 8 1 mcl9k 9216 3 0 3 1 1 0 1 0 8 0 mcl8k 8192 55 0 55 2 1 1 1 0 8 1 mcl4k 4096 108 0 108 3 2 1 1 0 8 1 mcl2k2 2112 8 0 8 2 1 1 1 0 8 1 mcl2k 2048 72123 0 72036 14 1 13 13 0 8 1 mtagpl 96 793 0 318 15 2 13 13 0 8 0 mbufpl 256 122710 0 122025 60 13 47 48 0 8 0 bufpl 288 5249 0 149 365 0 365 365 0 8 0 anonpl 24 215315 0 198683 126 18 108 118 0 188 0 amapchunkpl 152 24256 0 23679 38 11 27 36 0 158 0 amappl16 200 3240 0 2641 46 13 33 43 0 8 1 amappl15 192 40 0 39 1 0 1 1 0 8 0 amappl14 184 68 0 64 1 0 1 1 0 8 0 amappl13 176 104 0 101 1 0 1 1 0 8 0 amappl12 168 121 0 115 1 0 1 1 0 8 0 amappl11 160 348 0 331 1 0 1 1 0 8 0 amappl10 152 15 0 13 1 0 1 1 0 8 0 amappl9 144 494 0 491 1 0 1 1 0 8 0 amappl8 136 905 0 857 2 0 2 2 0 8 0 amappl7 128 437 0 423 1 0 1 1 0 8 0 amappl6 120 214 0 199 2 1 1 2 0 8 0 amappl5 112 687 0 671 1 0 1 1 0 8 0 amappl4 104 1265 0 1237 2 0 2 2 0 8 0 amappl3 96 2807 0 2772 2 0 2 2 0 8 0 amappl2 88 1494 0 1435 3 1 2 3 0 8 0 amappl1 80 29605 0 29065 21 6 15 19 0 8 0 amappl 88 5845 0 5712 4 0 4 4 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 7 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1193 0 1159 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1193 0 1159 1 0 1 1 0 8 0 vmmpekpl 168 13220 0 13167 3 0 3 3 0 8 0 vmmpepl 168 118551 0 116365 134 14 120 128 0 357 7 vmsppl 272 1192 0 1159 4 1 3 3 0 8 0 rwobjpl 24 33012 0 27950 32 0 32 32 0 8 0 pdppl 4096 2392 0 2329 153 79 74 74 0 8 11 pvpl 32 532819 0 513041 254 53 201 254 0 265 28 pmappl 216 1192 0 1159 3 0 3 3 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 890 0 169 21 0 21 21 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace sblock(fffffd806aa77708,fffffd806aa77820,1) at sblock+0x4a soassertlocked sys/kern/uipc_socket2.c:323 [inline] sblock(fffffd806aa77708,fffffd806aa77820,1) at sblock+0x4a sys/kern/uipc_socket2.c:378 sosend(fffffd806aa77708,0,ffff80002653d060,0,0,0) at sosend+0x280 sys/kern/uipc_socket.c:517 fifo_write(ffff80002653cfb0) at fifo_write+0x7c sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd80686cb628,ffff80002653d060,3,fffffd807f7d7900) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 ktrwriteraw(ffff800021610550,fffffd80686cb628,fffffd807f7d7900,ffff80002653d120,ffff80002653d100) at ktrwriteraw+0x13d sys/kern/kern_ktrace.c:666 ktrstruct(ffff800021610550,ffffffff825fe320,ffff80002653d210,10) at ktrstruct+0x16f ktrwrite2 sys/kern/kern_ktrace.c:631 [inline] ktrstruct(ffff800021610550,ffffffff825fe320,ffff80002653d210,10) at ktrstruct+0x16f sys/kern/kern_ktrace.c:315 sys_nanosleep(ffff800021610550,ffff80002653d280,ffff80002653d2e0) at sys_nanosleep+0xe0 sys/kern/kern_time.c:291 syscall(ffff80002653d350) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdbe60, count: -9 ddb> machine ddbcpu 1 No such command ddb> trace sblock(fffffd806aa77708,fffffd806aa77820,1) at sblock+0x4a soassertlocked sys/kern/uipc_socket2.c:323 [inline] sblock(fffffd806aa77708,fffffd806aa77820,1) at sblock+0x4a sys/kern/uipc_socket2.c:378 sosend(fffffd806aa77708,0,ffff80002653d060,0,0,0) at sosend+0x280 sys/kern/uipc_socket.c:517 fifo_write(ffff80002653cfb0) at fifo_write+0x7c sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd80686cb628,ffff80002653d060,3,fffffd807f7d7900) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 ktrwriteraw(ffff800021610550,fffffd80686cb628,fffffd807f7d7900,ffff80002653d120,ffff80002653d100) at ktrwriteraw+0x13d sys/kern/kern_ktrace.c:666 ktrstruct(ffff800021610550,ffffffff825fe320,ffff80002653d210,10) at ktrstruct+0x16f ktrwrite2 sys/kern/kern_ktrace.c:631 [inline] ktrstruct(ffff800021610550,ffffffff825fe320,ffff80002653d210,10) at ktrstruct+0x16f sys/kern/kern_ktrace.c:315 sys_nanosleep(ffff800021610550,ffff80002653d280,ffff80002653d2e0) at sys_nanosleep+0xe0 sys/kern/kern_time.c:291 syscall(ffff80002653d350) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdbe60, count: -9