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(fffffd805b142c48,fffffd805b142d60,1) at sblock+0x4a soassertlocked sys/kern/uipc_socket2.c:316 [inline] sblock(fffffd805b142c48,fffffd805b142d60,1) at sblock+0x4a sys/kern/uipc_socket2.c:371 sosend(fffffd805b142c48,0,ffff800024aef4f0,0,0,0) at sosend+0x27c sys/kern/uipc_socket.c:520 fifo_write(ffff800024aef440) at fifo_write+0x7c sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8077e28218,ffff800024aef4f0,3,fffffd807f7d77e0) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000216b57a8,fffffd8077e28218,fffffd807f7d77e0,ffff800024aef5c8,ffff800024aef590) at ktrwriteraw+0x13d sys/kern/kern_ktrace.c:666 ktrsysret(ffff8000216b57a8,89,0,ffff800024aef6d0) at ktrsysret+0x18b ktrwrite2 sys/kern/kern_ktrace.c:631 [inline] ktrsysret(ffff8000216b57a8,89,0,ffff800024aef6d0) at ktrsysret+0x18b sys/kern/kern_ktrace.c:213 syscall(ffff800024aef740) at syscall+0x561 mi_syscall_return sys/sys/syscall_mi.h:131 [inline] syscall(ffff800024aef740) at syscall+0x561 sys/arch/amd64/amd64/trap.c:607 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe04e0, count: -8 ddb> show registers rdi 0 rsi 0 rbp 0xffff800024aef300 rbx 0xfffffd805b142c48 rdx 0 rcx 0xfffffd805b142c48 rax 0x7854f8d235e855e5 r8 0 r9 0 r10 0x7e900 acpi_pdirpa+0x6a768 r11 0x9b801ce5d18480c5 r12 0xfffffd805b142c01 r13 0x1 r14 0xfffffd805b142db0 r15 0xfffffd805b142c48 rip 0xffffffff81c7268a sblock+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800024aef2a0 ss 0x10 sblock+0x4a: movq 0x8(%rax),%rax ddb> show proc PROC (syz-executor.7) pid=140853 stat=onproc flags process=2 proc=1 pri=24, usrpri=68, nice=20 forw=0xffffffffffffffff, list=0xffff800027f77270,0xffff800021660a90 process=0xffff80002652b7c0 user=0xffff800024aea000, vmspace=0xfffffd80785a3888 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 18702 137776 79783 0 3 0x80 nanoslp syz-executor.2 18702 380364 79783 0 3 0x4000080 netio syz-executor.2 18702 293078 79783 0 3 0x4000080 fsleep syz-executor.2 3347 493901 0 0 3 0x14200 acct acct 79783 155514 83922 0 3 0x82 nanoslp syz-executor.2 89355 162738 83922 0 3 0x82 nanoslp syz-executor.0 83405 145680 83922 0 3 0x82 nanoslp syz-executor.3 24371 297410 83922 0 3 0x82 nanoslp syz-executor.6 59200 232528 83922 0 3 0x82 nanoslp syz-executor.1 * 527 140853 83922 0 7 0x3 syz-executor.7 33556 360087 83922 0 2 0x2 syz-executor.5 75179 440584 83922 0 3 0x82 nanoslp syz-executor.4 49067 303763 1 0 3 0x100083 ttyopn getty 61639 338013 0 0 3 0x14280 nfsidl nfsio 70990 441996 0 0 3 0x14280 nfsidl nfsio 86691 237941 0 0 3 0x14280 nfsidl nfsio 14602 481621 0 0 3 0x14280 nfsidl nfsio 13794 218576 0 0 3 0x14280 nfsidl nfsio 92817 391087 0 0 3 0x14280 nfsidl nfsio 54213 313029 0 0 3 0x14280 nfsidl nfsio 32729 46684 0 0 3 0x14280 nfsidl nfsio 39120 430675 0 0 3 0x14280 nfsidl nfsio 39721 161986 0 0 3 0x14280 nfsidl nfsio 55333 460314 0 0 3 0x14280 nfsidl nfsio 49380 228279 0 0 3 0x14280 nfsidl nfsio 34774 343489 0 0 3 0x14280 nfsidl nfsio 2663 44733 0 0 3 0x14280 nfsidl nfsio 32284 59604 0 0 3 0x14280 nfsidl nfsio 56654 512091 0 0 3 0x14280 nfsidl nfsio 24808 16872 0 0 3 0x14280 nfsidl nfsio 21836 68717 0 0 3 0x14280 nfsidl nfsio 20121 263550 0 0 3 0x14280 nfsidl nfsio 9274 53166 0 0 3 0x14280 nfsidl nfsio 41298 364107 0 0 3 0x14200 bored sosplice 83922 24604 27671 0 3 0x82 thrsleep syz-fuzzer 83922 487151 27671 0 3 0x4000082 nanoslp syz-fuzzer 83922 118192 27671 0 3 0x4000082 kqread syz-fuzzer 83922 204252 27671 0 3 0x4000082 thrsleep syz-fuzzer 83922 98163 27671 0 3 0x4000082 thrsleep syz-fuzzer 83922 31295 27671 0 3 0x4000082 thrsleep syz-fuzzer 83922 177998 27671 0 3 0x4000082 thrsleep syz-fuzzer 83922 389013 27671 0 3 0x4000082 thrsleep syz-fuzzer 27671 190536 91848 0 3 0x10008a sigsusp ksh 91848 205231 88339 0 3 0x9a kqread sshd 88339 149167 1 0 3 0x88 kqread sshd 41615 432606 79590 73 3 0x1100090 kqread syslogd 79590 433446 1 0 3 0x100082 netio syslogd 3192 37518 1 0 3 0x100080 kqread resolvd 37308 502568 82877 77 3 0x100092 kqread dhcpleased 86285 366329 82877 77 3 0x100092 kqread dhcpleased 82877 86412 1 0 3 0x80 kqread dhcpleased 20906 211087 0 0 3 0x14200 bored smr 43311 91138 0 0 2 0x14200 zerothread 87320 363461 0 0 3 0x14200 aiodoned aiodoned 83433 129888 0 0 3 0x14200 syncer update 67135 160855 0 0 3 0x14200 cleaner cleaner 47568 109827 0 0 3 0x14200 reaper reaper 66224 435768 0 0 3 0x14200 pgdaemon pagedaemon 19629 365157 0 0 3 0x14200 bored viomb 46116 223334 0 0 3 0x40014200 acpi0 acpi0 1069 402932 0 0 3 0x14200 bored softnet 15526 524187 0 0 3 0x14200 bored softnet 70282 89250 0 0 3 0x14200 bored softnet 18962 69624 0 0 3 0x14200 bored softnet 67599 404810 0 0 3 0x14200 bored systqmp 33034 187228 0 0 3 0x14200 bored systq 58262 206164 0 0 3 0x40014200 bored softclock 39924 130340 0 0 3 0x40014200 idle0 1 452842 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 10217 6501K 7766K 78643K 36983 0 pcb 13 20K 24K 78643K 20840 0 rtable 246 20K 23K 78643K 3705 0 ifaddr 110 26K 28K 78643K 2459 0 sysctl 3 1K 4K 78643K 7 0 counters 27 17K 17K 78643K 221 0 ioctlops 0 0K 4K 78643K 4780 0 iov 0 0K 16K 78643K 2260 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1590 99K 100K 78643K 13677 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 188 0 VM map 2 0K 0K 78643K 2 0 sem 20 11K 16K 78643K 856 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 11 37K 85K 78643K 16772 0 sigio 0 0K 0K 78643K 249 0 proc 59 59K 91K 78643K 2358 0 subproc 104 6K 7K 78643K 832 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 701 0 in_multi 79 5K 7K 78643K 802 0 ether_multi 1 0K 0K 78643K 42 0 mrt 1 0K 0K 78643K 76 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 265 1182K 1182K 78643K 265 0 exec 0 0K 2K 78643K 3956 0 pfkey data 0 0K 0K 78643K 15 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 595 1657K 1657K 78643K 91312 0 UVM aobj 131 4K 4K 78643K 131 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 562 0 NDP 14 0K 2K 78643K 323 0 temp 202 4856K 17156K 78643K 221021 0 kqueue 12 18K 26K 78643K 1235 0 SYN cache 2 9K 17K 78643K 3 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 1183 0 1180 15 14 1 3 0 8 0 rtentry 112 735 0 648 4 1 3 4 0 8 0 unpcb 136 8226 0 8211 79 78 1 7 0 8 0 syncache 296 99 0 99 27 27 0 1 0 8 0 tcpqe 32 50 0 50 18 18 0 1 0 8 0 tcpcb 736 5848 0 5833 225 223 2 17 0 8 0 arp 88 123 0 107 1 0 1 1 0 8 0 ipq 40 82 0 82 6 6 0 1 0 8 0 ipqe 40 169 0 169 6 6 0 1 0 8 0 inpcb 312 33031 0 33020 349 345 4 17 0 8 2 ip6q 72 6 0 6 3 3 0 1 0 8 0 ip6af 40 10 0 10 3 3 0 1 0 8 0 nd6 48 191 0 169 1 0 1 1 0 8 0 pkpcb 40 114 0 114 10 9 1 1 0 8 1 kcovpl 48 62 0 54 1 0 1 1 0 8 0 ppxss 1152 101 0 101 19 19 0 1 0 8 0 pfstscr 40 71 0 67 3 2 1 1 0 8 0 pfosfp 40 37 0 35 1 0 1 1 0 8 0 pfosfpen 112 37 0 35 1 0 1 1 0 8 0 pfrktable 1344 493 0 475 7 5 2 2 0 8 0 pftag 88 106 0 98 5 4 1 1 0 8 0 pfstitem 24 38 0 30 1 0 1 1 0 8 0 pfstkey 112 101 0 98 3 2 1 1 0 8 0 pfstate 336 68 0 64 3 2 1 1 0 8 0 pfrule 1360 1130 0 971 15 1 14 14 0 8 0 rttmr 64 9 0 9 3 3 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 3098 0 2744 60 35 25 30 0 8 0 art_table 32 3099 0 2744 4 0 4 4 0 8 0 art_node 16 717 0 640 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 0 1 0 1 1 0 8 0 semapl 112 850 0 832 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 27767 0 26255 95 0 95 95 0 8 0 ffsino 240 27767 0 26255 90 0 90 90 0 8 0 nchpl 144 50268 0 48640 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 189350 0 189349 8 7 1 2 0 8 0 vcpupl 1984 283 0 0 36 0 36 36 0 8 0 vmpool 528 375 0 92 22 3 19 19 0 8 0 pfiaddrpl 120 296 0 234 3 1 2 2 0 8 0 kstatmem 264 416 0 388 4 1 3 3 0 8 0 scsiplug 72 31 0 31 7 7 0 1 0 8 0 scxspl 216 132432 0 132432 47 46 1 8 0 8 1 plimitpl 152 2038 0 2024 1 0 1 1 0 8 0 sigapl 424 17001 0 16936 8 0 8 8 0 8 0 futexpl 64 181724 0 181723 3 2 1 1 0 8 0 knotepl 120 194184 0 194104 53 49 4 12 0 8 0 kqueuepl 184 3537 0 3529 55 54 1 4 0 8 0 pipepl 304 3188 0 3160 76 73 3 8 0 8 0 fdescpl 432 16928 0 16905 4 0 4 4 0 8 0 filepl 120 141237 0 141000 198 188 10 18 0 8 1 lockfpl 104 4654 0 4652 7 6 1 2 0 8 0 lockfspl 48 1370 0 1368 1 0 1 1 0 8 0 sessionpl 144 70 0 54 1 0 1 1 0 8 0 pgrppl 48 196 0 180 1 0 1 1 0 8 0 ucredpl 96 34034 0 34024 1 0 1 1 0 8 0 zombiepl 144 16941 0 16936 2 1 1 1 0 8 0 processpl 1000 17001 0 16936 11 2 9 9 0 8 0 procpl 672 42613 0 42539 15 7 8 9 0 8 0 sosppl 168 139 0 139 23 23 0 1 0 8 0 sockpl 448 42796 0 42767 666 658 8 30 0 8 4 mcl64k 65536 761 0 761 32 31 1 1 0 8 1 mcl16k 16384 204 0 204 43 43 0 1 0 8 0 mcl12k 12288 579 0 579 32 31 1 1 0 8 1 mcl9k 9216 204 0 204 36 35 1 1 0 8 1 mcl8k 8192 1066 0 1066 35 35 0 1 0 8 0 mcl4k 4096 1716 0 1716 14 13 1 1 0 8 1 mcl2k2 2112 121 0 121 46 45 1 1 0 8 1 mcl2k 2048 105434 0 105388 34 27 7 12 0 8 1 mtagpl 96 2861 0 2690 23 16 7 17 0 8 0 mbufpl 256 300467 0 300118 138 102 36 64 0 8 0 bufpl 288 33487 0 27086 458 0 458 458 0 8 0 anonpl 24 3118455 0 3099883 335 217 118 140 0 188 1 amapchunkpl 152 268252 0 267553 94 64 30 39 0 158 0 amappl16 200 45035 0 44315 200 161 39 51 0 8 0 amappl15 192 1266 0 1264 1 0 1 1 0 8 0 amappl14 184 1217 0 1209 1 0 1 1 0 8 0 amappl13 176 2485 0 2484 1 0 1 1 0 8 0 amappl12 168 5544 0 5542 2 1 1 1 0 8 0 amappl11 160 1823 0 1794 2 0 2 2 0 8 0 amappl10 152 2412 0 2406 1 0 1 1 0 8 0 amappl9 144 1430 0 1426 1 0 1 1 0 8 0 amappl8 136 3391 0 3268 5 0 5 5 0 8 0 amappl7 128 2113 0 2101 1 0 1 1 0 8 0 amappl6 120 1414 0 1381 9 8 1 2 0 8 0 amappl5 112 15486 0 15472 1 0 1 1 0 8 0 amappl4 104 5808 0 5774 2 0 2 2 0 8 0 amappl3 96 53563 0 53526 2 0 2 2 0 8 0 amappl2 88 20950 0 20875 3 1 2 3 0 8 0 amappl1 80 394161 0 393608 29 14 15 19 0 8 0 amappl 88 89304 0 89058 8 1 7 7 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 17303 0 16997 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 17303 0 16997 2 0 2 2 0 8 0 vmmpekpl 168 114359 0 114272 5 0 5 5 0 8 0 vmmpepl 168 1645819 0 1642904 405 249 156 168 0 357 0 vmsppl 272 17302 0 16997 24 3 21 21 0 8 0 rwobjpl 24 387157 0 379278 60 10 50 50 0 8 0 pdppl 4096 34612 0 34277 1125 778 347 347 0 8 12 pvpl 32 6016430 0 5996593 571 395 176 240 0 265 0 pmappl 216 17302 0 16997 19 1 18 18 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 3421 0 2305 34 1 33 33 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace sblock(fffffd805b142c48,fffffd805b142d60,1) at sblock+0x4a soassertlocked sys/kern/uipc_socket2.c:316 [inline] sblock(fffffd805b142c48,fffffd805b142d60,1) at sblock+0x4a sys/kern/uipc_socket2.c:371 sosend(fffffd805b142c48,0,ffff800024aef4f0,0,0,0) at sosend+0x27c sys/kern/uipc_socket.c:520 fifo_write(ffff800024aef440) at fifo_write+0x7c sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8077e28218,ffff800024aef4f0,3,fffffd807f7d77e0) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000216b57a8,fffffd8077e28218,fffffd807f7d77e0,ffff800024aef5c8,ffff800024aef590) at ktrwriteraw+0x13d sys/kern/kern_ktrace.c:666 ktrsysret(ffff8000216b57a8,89,0,ffff800024aef6d0) at ktrsysret+0x18b ktrwrite2 sys/kern/kern_ktrace.c:631 [inline] ktrsysret(ffff8000216b57a8,89,0,ffff800024aef6d0) at ktrsysret+0x18b sys/kern/kern_ktrace.c:213 syscall(ffff800024aef740) at syscall+0x561 mi_syscall_return sys/sys/syscall_mi.h:131 [inline] syscall(ffff800024aef740) at syscall+0x561 sys/arch/amd64/amd64/trap.c:607 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe04e0, count: -8 ddb> machine ddbcpu 1 No such command ddb> trace sblock(fffffd805b142c48,fffffd805b142d60,1) at sblock+0x4a soassertlocked sys/kern/uipc_socket2.c:316 [inline] sblock(fffffd805b142c48,fffffd805b142d60,1) at sblock+0x4a sys/kern/uipc_socket2.c:371 sosend(fffffd805b142c48,0,ffff800024aef4f0,0,0,0) at sosend+0x27c sys/kern/uipc_socket.c:520 fifo_write(ffff800024aef440) at fifo_write+0x7c sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8077e28218,ffff800024aef4f0,3,fffffd807f7d77e0) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000216b57a8,fffffd8077e28218,fffffd807f7d77e0,ffff800024aef5c8,ffff800024aef590) at ktrwriteraw+0x13d sys/kern/kern_ktrace.c:666 ktrsysret(ffff8000216b57a8,89,0,ffff800024aef6d0) at ktrsysret+0x18b ktrwrite2 sys/kern/kern_ktrace.c:631 [inline] ktrsysret(ffff8000216b57a8,89,0,ffff800024aef6d0) at ktrsysret+0x18b sys/kern/kern_ktrace.c:213 syscall(ffff800024aef740) at syscall+0x561 mi_syscall_return sys/sys/syscall_mi.h:131 [inline] syscall(ffff800024aef740) at syscall+0x561 sys/arch/amd64/amd64/trap.c:607 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe04e0, count: -8