¹j¼kernel: protection fault trap, code=0 Stopped at done_flush+0x38: movl %eax,%dr6 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace end trace frame: 0x0, count: -1 ddb> show registers rdi 0x6c14 __ALIGN_SIZE+0x5c14 rsi 0xffff80003c97f830 rbp 0 rbx 0x756e6547 rdx 0x49656e69 rcx 0x6c65746e rax 0x200000000000000 r8 0 r9 0x10000 __ALIGN_SIZE+0xf000 r10 0 r11 0 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff82fd216b done_flush+0x38 cs 0x8 rflags 0x10046 __ALIGN_SIZE+0xf046 rsp 0xffff800037d08ef8 ss 0x10 done_flush+0x38: movl %eax,%dr6 ddb> show proc PROC (syz-executor) tid=340210 pid=36369 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7bc030,0xffffffff839c2458 process=0xffff8000ffff8d98 user=0xffff800037d04000, vmspace=0xfffffd806c9b2d00 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 36369 206698 59481 0 2 0 syz-executor *36369 340210 59481 0 7 0x4000000 syz-executor 37750 194311 57627 0 2 0 syz-executor 37750 252461 57627 0 3 0x4000080 fsleep syz-executor 11575 505229 16255 0 2 0xc80 syz-executor 11575 311002 16255 0 3 0x4000080 kqpoll syz-executor 11575 176756 16255 0 3 0x4000080 fsleep syz-executor 16255 198454 83808 0 2 0xc82 syz-executor 64103 419815 93280 0 2 0xc80 syz-executor 64103 31943 93280 0 3 0x4000080 ttyout syz-executor 64103 296501 93280 0 3 0x4000080 fsleep syz-executor 64103 384455 93280 0 3 0x4000080 fsleep syz-executor 64103 239385 93280 0 3 0x4000080 fsleep syz-executor 96466 452506 0 0 3 0x14200 acct acct 3279 462779 83808 0 2 0x2 syz-executor 96258 361857 1 0 3 0x100083 ttyin getty 59481 171038 83808 0 3 0x82 nanoslp syz-executor 93280 238214 83808 0 2 0xc82 syz-executor 22746 11140 83808 0 2 0xc82 syz-executor 3934 260778 83808 0 2 0xc82 syz-executor 26057 275199 83808 0 2 0xc82 syz-executor 57627 512179 83808 0 3 0x82 nanoslp syz-executor 83808 393160 69636 0 2 0x2 syz-executor 69636 1705 17920 0 3 0x10008a sigsusp ksh 17920 25845 11878 0 3 0x98 kqread sshd-session 11878 214527 81311 0 3 0x92 kqread sshd-session 81311 398916 1 0 3 0x88 kqread sshd 2436 191750 40431 73 3 0x1100090 kqread syslogd 40431 131679 1 0 3 0x100082 sbwait syslogd 88174 166229 1 0 3 0x100080 kqread resolvd 21565 337814 18518 77 3 0x100092 kqread dhcpleased 63873 158646 18518 77 3 0x100092 kqread dhcpleased 18518 373196 1 0 3 0x80 kqread dhcpleased 82085 322792 0 0 3 0x14200 bored smr 24424 47205 0 0 2 0x14200 zerothread 2369 464600 0 0 3 0x14200 aiodoned aiodoned 27126 225748 0 0 3 0x14200 syncer update 77008 45923 0 0 3 0x14200 cleaner cleaner 64793 102999 0 0 3 0x14200 reaper reaper 36028 253214 0 0 3 0x14200 pgdaemon pagedaemon 47492 64047 0 0 3 0x14200 bored viomb 88674 413627 0 0 3 0x40014200 acpi0 acpi0 26050 131234 0 0 3 0x14200 bored softnet0 88233 272738 0 0 3 0x14200 bored systqmp 16272 513347 0 0 3 0x14200 bored systq 86117 354437 0 0 3 0x40014200 tmoslp softclock 10012 87456 0 0 3 0x40014200 idle0 1 502866 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11045 12118K 12463K 166960K 13224 0 pcb 18 16K 18K 166960K 397 0 rtable 220 10K 10K 166960K 691 0 pf 34 13K 15K 166960K 87 0 ifaddr 38 6K 7K 166960K 79 0 ifgroup 50 2K 2K 166960K 102 0 sysctl 4 1K 9K 166960K 14 0 counters 33 17K 18K 166960K 63 0 ioctlops 0 0K 4K 166960K 411 0 iov 0 0K 16K 166960K 40 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1464 92K 93K 166960K 2338 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 6K 166960K 18 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 106 0 dirhash 12 2K 2K 166960K 36 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 986 0 sigio 0 0K 0K 166960K 14 0 proc 60 59K 108K 166960K 669 0 subproc 72 4K 4K 166960K 99 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 111 0 in_multi 77 5K 7K 166960K 185 0 ether_multi 1 0K 0K 166960K 15 0 mrt 0 0K 0K 166960K 14 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 127 572K 572K 166960K 127 0 exec 0 0K 1K 166960K 547 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 236 159K 177K 166960K 10279 0 UVM aobj 27 15K 15K 166960K 32 0 pinsyscall 38 76K 96K 166960K 2146 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 67 0 NDP 13 0K 2K 166960K 53 0 temp 65 8673K 8737K 166960K 20836 0 kqueue 13 20K 30K 166960K 194 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 120 108 0 105 1 0 1 1 0 8 0 rtentry 136 179 0 92 4 0 4 4 0 8 0 unpcb 144 1054 0 1037 11 5 6 6 0 8 5 syncache 336 6 0 6 2 1 1 1 0 8 1 tcpqe 32 4 0 4 2 1 1 1 0 8 1 tcpcb 736 460 0 452 10 6 4 7 0 8 3 arp 96 31 0 14 1 0 1 1 0 8 0 ipq 40 3 0 0 1 0 1 1 0 8 0 ipqe 40 4 0 1 1 0 1 1 0 8 0 inpcb 328 1307 0 1290 15 5 10 10 0 8 8 ip6q 72 1 0 0 1 0 1 1 0 8 0 ip6af 40 1 0 0 1 0 1 1 0 8 0 nd6 112 38 0 20 1 0 1 1 0 8 0 pkpcb 40 5 0 5 2 1 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1072 25 0 25 2 1 1 1 0 8 1 pfrktable 1344 3 0 2 1 0 1 1 0 8 0 pfsrclim 320 2 0 1 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 320 1 0 1 1 0 1 1 0 8 1 pfstitem 24 8 0 2 1 0 1 1 0 8 0 pfstkey 128 10 0 3 1 0 1 1 0 8 0 pfstate 384 5 0 2 1 0 1 1 0 8 0 pfrule 1360 5 0 5 2 1 1 1 0 8 1 rttmr 136 3 0 3 2 1 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 759 0 389 30 3 27 29 0 8 2 art_table 40 761 0 389 5 0 5 5 0 8 0 art_node 32 179 0 104 1 0 1 1 0 8 0 sysvmsgpl 40 44 0 40 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 102 0 92 1 0 1 1 0 8 0 shmpl 112 22 0 4 1 0 1 1 0 8 0 dirhash 1024 34 0 17 3 0 3 3 0 8 0 dino2pl 256 3269 0 1765 95 0 95 95 0 8 0 ffsino 256 3269 0 1765 95 0 95 95 0 8 0 nchpl 144 4588 0 2885 64 0 64 64 0 8 0 rtmask 32 7 0 7 2 1 1 1 0 8 1 vnodes 216 3851 0 0 214 0 214 214 0 8 0 namei 1024 16156 0 16155 3 2 1 2 0 8 0 vcpupl 3904 7 0 1 1 0 1 1 0 8 0 vmpool 808 7 0 1 1 0 1 1 0 8 0 kstatmem 264 60 0 38 2 0 2 2 0 8 0 scsiplug 72 5 0 5 2 1 1 1 0 8 1 scxspl 216 18322 0 18322 9 1 8 8 1 8 8 plimitpl 152 398 0 380 1 0 1 1 0 8 0 sigapl 424 1271 0 1228 7 1 6 6 0 8 1 knotepl 120 39969 0 39922 51 41 10 24 0 8 8 kqueuepl 184 389 0 378 5 3 2 4 0 8 1 pipepl 304 315 0 287 7 2 5 5 0 8 2 fdescpl 448 1256 0 1227 5 1 4 5 0 8 0 filepl 120 9383 0 9150 20 5 15 15 0 8 5 lockfpl 104 475 0 471 2 1 1 2 0 8 0 lockfspl 48 191 0 187 1 0 1 1 0 8 0 sessionpl 144 27 0 19 1 0 1 1 0 8 0 pgrppl 48 51 0 35 1 0 1 1 0 8 0 ucredpl 104 1622 0 1610 1 0 1 1 0 8 0 zombiepl 144 1231 0 1228 1 0 1 1 0 8 0 processpl 1152 1271 0 1228 4 0 4 4 0 8 0 procpl 664 2513 0 2462 7 1 6 6 0 8 0 sosppl 176 4 0 4 2 1 1 1 0 8 1 sockpl 552 2506 0 2469 25 13 12 16 0 8 8 mcl64k 65536 110 0 109 2 1 1 1 0 8 0 mcl16k 16384 4 0 4 2 1 1 1 0 8 1 mcl9k 9216 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 11 0 11 2 1 1 1 0 8 1 mcl4k 4096 3537 0 3481 14 5 9 13 0 8 1 mcl2k 2048 1059 0 1053 4 1 3 3 0 8 2 mtagpl 96 15 0 9 1 0 1 1 0 8 0 mbufpl 256 15228 0 15025 21 3 18 18 0 8 0 bufpl 280 6268 0 121 440 0 440 440 0 8 0 anonpl 24 193361 0 189788 88 30 58 58 0 187 28 amapchunkpl 152 34321 0 33833 47 13 34 34 0 158 11 amappl16 200 3547 0 3492 30 18 12 18 0 8 8 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 6 0 6 1 1 0 1 0 8 0 amappl13 176 442 0 441 1 0 1 1 0 8 0 amappl12 168 1621 0 1583 2 0 2 2 0 8 0 amappl11 160 21 0 20 1 0 1 1 0 8 0 amappl10 152 42 0 32 1 0 1 1 0 8 0 amappl9 144 249 0 248 1 0 1 1 0 8 0 amappl8 136 25 0 24 1 0 1 1 0 8 0 amappl7 128 93 0 92 1 0 1 1 0 8 0 amappl6 120 301 0 289 1 0 1 1 0 8 0 amappl5 112 73 0 65 1 0 1 1 0 8 0 amappl4 104 424 0 399 1 0 1 1 0 8 0 amappl3 96 5949 0 5859 3 0 3 3 0 8 0 amappl2 88 1373 0 1303 2 0 2 2 0 8 0 amappl1 80 13065 0 12523 14 1 13 13 0 8 0 amappl 88 9387 0 9220 5 0 5 5 0 92 0 uvmvnodes 80 129 0 0 3 0 3 3 0 8 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 128 255 0 255 2 1 1 1 0 8 1 dma64 64 7 0 7 2 1 1 1 0 8 1 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 20 0 19 1 0 1 1 0 8 0 aobjpl 72 31 0 5 1 0 1 1 0 8 0 uaddrrnd 24 1256 0 1227 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1256 0 1227 1 0 1 1 0 8 0 vmmpekpl 168 11603 0 11563 3 0 3 3 0 8 1 vmmpepl 168 84602 0 82778 103 8 95 95 0 357 11 vmsppl 368 1255 0 1227 4 1 3 4 0 8 0 rwobjpl 40 23892 0 22861 15 1 14 14 0 8 0 pdppl 4096 2533 0 2462 105 31 74 81 0 8 3 pvpl 32 546123 0 536010 173 40 133 133 0 265 38 pmappl 216 1262 0 1228 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 405 0 60 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace end trace frame: 0x0, count: -1 ddb> machine ddbcpu 1 No such command ddb> trace end trace frame: 0x0, count: -1