L3;L3;uvm_fault(0xfffffd807f00d708, 0x8f, 0, 1) -> e kernel: page fault trap, code=0 Stopped at wsmuxclose+0x75: cmpq %r12,0x90(%r15) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd807f00d708, 0x8f, 0, 1) -> e wsmuxclose(4501,1,2000,ffff800020b6a978) at wsmuxclose+117 end trace frame: 0xffff800020c37aa0, count: 0 ddb{0}> trace wsmuxclose(4501,1,2000,ffff800020b6a978) at wsmuxclose+117 spec_close(ffff800020c37ab0) at spec_close+928 VOP_CLOSE(fffffd806e537d58,1,fffffd807f7c7ae0,ffff800020b6a978) at VOP_CLOSE+112 vn_closefile(fffffd80681c9c98,ffff800020b6a978) at vn_closefile+352 fdrop(fffffd80681c9c98,ffff800020b6a978) at fdrop+225 closef(fffffd80681c9c98,ffff800020b6a978) at closef+297 fdfree(ffff800020b6a978) at fdfree+232 exit1(ffff800020b6a978,0,1) at exit1+750 sys_exit(ffff800020b6a978,ffff800020c37db0,ffff800020c37da0) at sys_exit+23 syscall(ffff800020c37e50) at syscall+1452 Xsyscall(6,1,0,1,0,7f7fffff8fc4) at Xsyscall+296 end of kernel end trace frame: 0x7f7fffff8f90, count: -11 ddb{0}> show registers rdi 0 rsi 0 rbp 18446603336770878000 rbx 0 rdx 18446744071595043577 cy_pio_rec+134704 rcx 0 rax 0 r8 0 r9 0 r10 6 r11 881776313471705031 r12 18446603336221355776 r13 0 r14 18446603336221355856 r15 18446744073709551615 rip 18446744071592641957 wsmuxclose+117 cs 8 rflags 66118 __ALIGN_SIZE+62022 rsp 18446603336770877936 ss 16 wsmuxclose+117: cmpq %r12,144(%r15) ddb{0}> show proc PROC (syz-executor.0) pid=450404 stat=onproc flags process=1008 proc=2000 pri=0, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff800020b6a270,0xffff800020b6b798 process=0xffff800020b44d30 user=0xffff800020c32000, vmspace=0xfffffd807f00d708 estcpu=30, cpticks=2, pctcpu=1.3 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 68420 493980 50209 0 7 0 syz-executor.1 68420 428649 50209 0 2 0x4000000 syz-executor.1 40248 508659 0 0 3 0x14200 bored sosplice 50209 157294 549 0 3 0x82 nanosleep syz-executor.1 23642 524170 549 0 3 0x82 nanosleep syz-executor.0 549 397159 52362 0 3 0x82 thrsleep syz-fuzzer 549 218556 52362 0 3 0x4000082 thrsleep syz-fuzzer 549 213721 52362 0 3 0x4000082 thrsleep syz-fuzzer 549 300802 52362 0 3 0x4000082 thrsleep syz-fuzzer 549 162097 52362 0 3 0x4000082 kqread syz-fuzzer 549 218957 52362 0 3 0x4000082 thrsleep syz-fuzzer 549 270009 52362 0 3 0x4000082 thrsleep syz-fuzzer 549 121857 52362 0 3 0x4000082 thrsleep syz-fuzzer 549 192378 52362 0 3 0x4000082 thrsleep syz-fuzzer 549 6251 52362 0 3 0x4000082 thrsleep syz-fuzzer 52362 277293 51026 0 3 0x10008a pause ksh 51026 68435 12415 0 3 0x92 select sshd 12583 205257 1 0 3 0x100083 ttyin getty 12415 284812 1 0 3 0x80 select sshd 55578 301486 61161 73 2 0x100090 syslogd 61161 403100 1 0 3 0x100082 netio syslogd 94755 271251 1 77 3 0x100090 poll dhclient 26137 419279 1 0 3 0x80 poll dhclient 35124 243125 0 0 2 0x14200 zerothread 9257 247370 0 0 3 0x14200 aiodoned aiodoned 6500 222461 0 0 3 0x14200 syncer update 53876 192508 0 0 3 0x14200 cleaner cleaner 12791 299565 0 0 3 0x14200 reaper reaper 11958 512127 0 0 3 0x14200 pgdaemon pagedaemon 90115 275733 0 0 3 0x14200 bored crynlk 64203 369139 0 0 3 0x14200 bored crypto 64939 394051 0 0 3 0x40014200 acpi0 acpi0 42713 51007 0 0 3 0x40014200 idle1 36024 97586 0 0 3 0x14200 bored softnet 70402 424011 0 0 3 0x14200 bored systqmp 27742 450593 0 0 3 0x14200 bored systq 19595 447628 0 0 3 0x40014200 bored softclock 13626 49027 0 0 3 0x40014200 idle0 1 478054 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9483 6337K 6345K 78643K 10610 0 0 pcb 23 9K 10K 78643K 99 0 0 rtable 100 3K 4K 78643K 182 0 0 ifaddr 45 11K 11K 78643K 50 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 2K 78643K 15 0 0 iov 0 0K 16K 78643K 20 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1199 75K 75K 78643K 1291 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 4 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 0K 78643K 23 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1792 194K 288K 78643K 12592 0 0 file desc 6 17K 25K 78643K 157 0 0 proc 41 38K 70K 78643K 257 0 0 subproc 64 65538K 67586K 78643K 68 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 31 0 0 in_multi 33 2K 2K 78643K 39 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 48 212K 212K 78643K 48 0 0 exec 0 0K 1K 78643K 172 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 82 20K 21K 78643K 1235 0 0 UVM aobj 10 2K 2K 78643K 10 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 1 0 0 NDP 8 0K 0K 78643K 13 0 0 temp 105 2357K 2421K 78643K 3150 0 0 kqueue 0 0K 0K 78643K 3 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 4 0 0 1 0 1 1 0 8 0 inpcbpl 280 110 0 103 1 0 1 1 0 8 0 plimitpl 152 15 0 8 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 41 0 1 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 49 0 45 1 0 1 1 0 8 0 nd6 48 4 0 0 1 0 1 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 184 0 0 12 0 12 12 0 8 0 art_table 32 185 0 0 2 0 2 2 0 8 0 art_node 16 40 0 6 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 21 0 11 1 0 1 1 0 8 0 shmpl 112 8 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1683 0 279 46 0 46 46 0 8 0 ffsino 272 1683 0 279 95 0 95 95 0 8 0 nchpl 144 2105 0 483 61 0 61 61 0 8 0 uvmvnodes 72 1737 0 0 32 0 32 32 0 8 0 vnodes 200 1737 0 0 92 0 92 92 0 8 0 namei 1024 5313 0 5313 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 0 1 1 0 8 1 scxspl 192 5013 0 5013 8 7 1 6 0 8 1 sigapl 432 325 0 311 2 0 2 2 0 8 0 futexpl 56 1608 0 1608 1 0 1 1 0 8 1 knotepl 112 116 0 89 3 1 2 2 0 8 1 kqueuepl 104 50 0 48 1 0 1 1 0 8 0 pipepl 112 212 0 193 2 1 1 1 0 8 0 fdescpl 488 326 0 311 3 1 2 3 0 8 0 filepl 152 1826 0 1731 6 1 5 5 0 8 1 lockfpl 104 69 0 69 2 1 1 1 0 8 1 lockfspl 32 103 0 103 2 1 1 1 0 8 1 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 96 364 0 357 1 0 1 1 0 8 0 zombiepl 144 312 0 311 2 1 1 1 0 8 0 processpl 840 341 0 311 4 0 4 4 0 8 0 procpl 600 668 0 628 4 0 4 4 0 8 0 sosppl 128 4 0 4 2 2 0 1 0 8 0 sockpl 384 180 0 163 3 0 3 3 0 8 1 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 120 0 0 14 0 14 14 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 136 0 0 8 0 8 8 0 8 0 bufpl 256 5413 0 1013 275 0 275 275 0 8 0 anonpl 16 48155 0 40440 49 1 48 48 0 125 16 amapchunkpl 152 1508 0 1408 6 1 5 6 0 158 0 amappl16 192 1821 0 1426 38 8 30 32 0 8 10 amappl15 184 5 0 3 1 0 1 1 0 8 0 amappl14 176 4 0 3 2 1 1 1 0 8 0 amappl13 168 26 0 23 1 0 1 1 0 8 0 amappl12 160 147 0 141 1 0 1 1 0 8 0 amappl11 152 182 0 172 1 0 1 1 0 8 0 amappl10 144 57 0 54 1 0 1 1 0 8 0 amappl9 136 353 0 350 1 0 1 1 0 8 0 amappl8 128 280 0 256 1 0 1 1 0 8 0 amappl7 120 38 0 33 1 0 1 1 0 8 0 amappl6 112 53 0 46 1 0 1 1 0 8 0 amappl5 104 122 0 111 1 0 1 1 0 8 0 amappl4 96 275 0 251 2 1 1 2 0 8 0 amappl3 88 135 0 129 1 0 1 1 0 8 0 amappl2 80 1997 0 1937 2 0 2 2 0 8 0 amappl1 72 15592 0 15158 24 14 10 19 0 8 0 amappl 72 874 0 836 1 0 1 1 0 75 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 dma64 64 259 0 259 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 9 0 0 1 0 1 1 0 8 0 uaddrrnd 24 326 0 311 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 326 0 311 1 0 1 1 0 8 0 vmmpekpl 168 6469 0 6449 2 0 2 2 0 8 0 vmmpepl 168 41862 0 40437 93 19 74 74 0 357 12 vmsppl 360 325 0 311 2 0 2 2 0 8 0 pdppl 4096 659 0 622 6 1 5 6 0 8 0 pvpl 32 147598 0 136351 134 9 125 125 0 265 34 pmappl 224 325 0 311 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 422 0 4 12 0 12 12 0 8 0