uvm_fault(0xfffffd806bc0a880, 0x70, 0, 2) -> e kernel: page fault trap, code=0 Stopped at syscall+0x558: movq %rax,0x70(%rbx) ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd806bc0a880, 0x70, 0, 2) -> e syscall(ffff80001d3f6060) at syscall+0x558 sys/arch/amd64/amd64/trap.c:574 end trace frame: 0xffff80001d3f60e0, count: 0 ddb> trace syscall(ffff80001d3f6060) at syscall+0x558 sys/arch/amd64/amd64/trap.c:574 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc002b47e98, count: -2 ddb> show registers rdi 0 rsi 0xffffffff824505f0 __sancov_gen_cov_switch_values.48 rbp 0xffff80001d3f6050 rbx 0 rdx 0x3 rcx 0 rax 0x1 r8 0x7f7fffffc000 r9 0x5 r10 0 r11 0x54656fde8f8e3471 r12 0x48 r13 0x480 r14 0xffff80001d34a388 r15 0 rip 0xffffffff8123b058 syscall+0x558 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001d3f5f90 ss 0x10 syscall+0x558: movq %rax,0x70(%rbx) ddb> show proc PROC (syz-fuzzer) pid=337722 stat=onproc flags process=2 proc=4000000 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d3494e8,0xffff80001d34a608 process=0xffff80001d39e000 user=0xffff80001d3f1000, vmspace=0xfffffd806bc0a880 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 65347 325991 0 0 3 0x14200 acct acct 29376 317001 0 0 3 0x14200 bored sosplice 31065 365507 69543 0 2 0x482 syz-executor.0 73498 403882 69543 0 2 0x2 syz-executor.1 69543 184653 16291 0 3 0x82 thrsleep syz-fuzzer 69543 323335 16291 0 3 0x4000082 thrsleep syz-fuzzer 69543 317037 16291 0 3 0x4000082 thrsleep syz-fuzzer 69543 142986 16291 0 3 0x4000082 thrsleep syz-fuzzer 69543 209689 16291 0 3 0x4000082 thrsleep syz-fuzzer 69543 367548 16291 0 3 0x4000082 thrsleep syz-fuzzer 69543 455133 16291 0 3 0x4000082 thrsleep syz-fuzzer *69543 337722 16291 0 7 0x4000002 syz-fuzzer 16291 64 68017 0 3 0x10008a pause ksh 68017 505298 92147 0 3 0x92 select sshd 81566 92057 1 0 3 0x100083 ttyin getty 92147 215436 1 0 3 0x80 select sshd 87847 389841 70210 73 3 0x100090 kqread syslogd 70210 401567 1 0 3 0x100082 netio syslogd 60398 235717 1 77 3 0x100090 poll dhclient 18023 387813 1 0 3 0x80 poll dhclient 75135 302985 0 0 3 0x14200 pgzero zerothread 94843 67128 0 0 3 0x14200 aiodoned aiodoned 87879 257424 0 0 3 0x14200 syncer update 18987 420387 0 0 3 0x14200 cleaner cleaner 82659 223158 0 0 3 0x14200 reaper reaper 75253 104768 0 0 3 0x14200 pgdaemon pagedaemon 25795 64780 0 0 3 0x14200 bored crynlk 46600 13449 0 0 3 0x14200 bored crypto 16905 261804 0 0 3 0x40014200 acpi0 acpi0 43500 165700 0 0 3 0x14200 bored softnet 43861 41927 0 0 3 0x14200 bored systqmp 81665 82253 0 0 3 0x14200 bored systq 61 18118 0 0 3 0x40014200 bored softclock 71222 21386 0 0 3 0x40014200 idle0 58754 185490 0 0 3 0x14200 bored smr 1 394465 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 9475 6455K 6590K 78643K 10808 0 pcb 13 8K 8K 78643K 29 0 rtable 118 4K 4K 78643K 224 0 ifaddr 53 12K 12K 78643K 69 0 counters 21 16K 16K 78643K 23 0 ioctlops 0 0K 2K 78643K 25 0 iov 0 0K 12K 78643K 16 0 mount 1 1K 1K 78643K 1 0 vnodes 1214 76K 77K 78643K 1299 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 4 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 0K 78643K 150 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 4 9K 25K 78643K 144 0 proc 49 38K 63K 78643K 382 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 19 0 in_multi 47 2K 3K 78643K 52 0 ether_multi 1 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 209 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 102 21K 37K 78643K 1215 0 UVM aobj 56 2K 2K 78643K 58 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 9 0 NDP 7 0K 0K 78643K 13 0 temp 74 3004K 3068K 78643K 4544 0 kqueue 3 4K 14K 78643K 23 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 arp 64 7 0 0 1 0 1 1 0 8 0 rtpcb 80 23 0 21 1 0 1 1 0 8 0 rtentry 112 50 0 1 2 0 2 2 0 8 0 unpcb 120 105 0 97 1 0 1 1 0 8 0 syncache 264 6 0 6 2 1 1 1 0 8 1 tcpqe 32 64 0 64 1 1 0 1 0 8 0 tcpcb 544 58 0 54 2 0 2 2 0 8 1 ipq 40 4 0 4 1 0 1 1 0 8 1 ipqe 40 180 0 180 1 0 1 1 0 8 1 inpcb 280 283 0 275 2 0 2 2 0 8 1 nd6 48 6 0 0 1 0 1 1 0 8 0 ppxss 1128 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 237 0 0 15 0 15 15 0 8 0 art_table 32 238 0 0 2 0 2 2 0 8 0 art_node 16 49 0 4 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 148 0 138 1 0 1 1 0 8 0 shmpl 112 56 0 2 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1616 0 218 46 0 46 46 0 8 0 ffsino 240 1616 0 218 83 0 83 83 0 8 0 nchpl 144 2014 0 404 60 0 60 60 0 8 0 uvmvnodes 72 1710 0 0 32 0 32 32 0 8 0 vnodes 208 1710 0 0 90 0 90 90 0 8 0 namei 1024 5268 0 5268 1 0 1 1 0 8 1 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 6160 0 6160 1 0 1 1 0 8 1 plimitpl 152 29 0 22 1 0 1 1 0 8 0 sigapl 432 315 0 303 2 0 2 2 0 8 0 futexpl 56 4580 0 4580 1 0 1 1 0 8 1 knotepl 112 82 0 63 1 0 1 1 0 8 0 kqueuepl 104 38 0 36 1 0 1 1 0 8 0 pipelkpl 16 103 0 93 1 0 1 1 0 8 0 pipepl 120 206 0 187 2 1 1 2 0 8 0 fdescpl 432 316 0 303 2 0 2 2 0 8 0 filepl 120 2116 0 2021 4 0 4 4 0 8 1 lockfpl 104 42 0 41 1 0 1 1 0 8 0 lockfspl 48 18 0 17 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 19 0 9 1 0 1 1 0 8 0 ucredpl 96 249 0 242 1 0 1 1 0 8 0 zombiepl 144 303 0 302 1 0 1 1 0 8 0 processpl 896 332 0 302 4 0 4 4 0 8 0 procpl 624 490 0 453 4 0 4 4 0 8 0 sosppl 128 6 0 6 1 0 1 1 0 8 1 sockpl 400 411 0 394 5 0 5 5 0 8 3 mcl64k 65536 26 0 26 1 0 1 1 0 8 1 mcl16k 16384 3 0 3 2 1 1 1 0 8 1 mcl12k 12288 4 0 4 1 0 1 1 0 8 1 mcl9k 9216 2 0 2 1 0 1 1 0 8 1 mcl8k 8192 7 0 7 1 0 1 1 0 8 1 mcl4k 4096 36 0 36 2 1 1 1 0 8 1 mcl2k2 2112 1 0 1 1 1 0 1 0 8 0 mcl2k 2048 63928 0 63879 15 5 10 13 0 8 3 mtagpl 80 18 0 4 2 1 1 1 0 8 0 mbufpl 256 103104 0 102982 23 5 18 22 0 8 8 bufpl 280 4720 0 181 325 0 325 325 0 8 0 anonpl 16 48304 0 32264 77 1 76 76 0 107 11 amapchunkpl 152 1776 0 1648 20 1 19 19 0 158 13 amappl16 192 1699 0 820 53 4 49 53 0 8 4 amappl15 184 61 0 55 1 0 1 1 0 8 0 amappl14 176 79 0 76 1 0 1 1 0 8 0 amappl12 160 11 0 11 1 1 0 1 0 8 0 amappl11 152 48 0 37 1 0 1 1 0 8 0 amappl10 144 74 0 71 1 0 1 1 0 8 0 amappl9 136 560 0 557 1 0 1 1 0 8 0 amappl8 128 114 0 93 1 0 1 1 0 8 0 amappl7 120 150 0 139 1 0 1 1 0 8 0 amappl6 112 54 0 49 1 0 1 1 0 8 0 amappl5 104 142 0 132 1 0 1 1 0 8 0 amappl4 96 534 0 508 1 0 1 1 0 8 0 amappl3 88 172 0 164 1 0 1 1 0 8 0 amappl2 80 1749 0 1688 3 1 2 3 0 8 0 amappl1 72 15361 0 14954 26 17 9 20 0 8 0 amappl 80 714 0 676 1 0 1 1 0 84 0 dma4096 4096 1 0 1 1 1 0 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 64 57 0 2 1 0 1 1 0 8 0 uaddrrnd 24 316 0 303 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 316 0 303 1 0 1 1 0 8 0 vmmpekpl 168 6202 0 6176 2 0 2 2 0 8 0 vmmpepl 168 45589 0 43729 113 7 106 108 0 357 19 vmsppl 272 315 0 303 2 1 1 2 0 8 0 pdppl 4096 638 0 606 6 1 5 6 0 8 0 pvpl 32 154593 0 135594 180 0 180 180 0 265 25 pmappl 200 315 0 303 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 168 0 16 5 0 5 5 0 8 0