uvm_fault(0xfffffd800848e450, 0x28, 0, 1) -> e kernel: page fault trap, code=0 Stopped at wsevent_fini+0x12: movq 0x28(%r14),%r15 ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xfffffd800848e450, 0x28, 0, 1) -> e wsevent_fini(0) at wsevent_fini+0x12 sys/dev/wscons/wsevent.c:130 end trace frame: 0xffff8000226d10c0, count: 0 ddb{1}> trace wsevent_fini(0) at wsevent_fini+0x12 sys/dev/wscons/wsevent.c:130 wsmouseclose(4400,81,2000,ffff80002127aa58) at wsmouseclose+0x91 sys/dev/wscons/wsmouse.c:355 spec_close(ffff8000226d1140) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806e363c38,81,fffffd807f7b7960,ffff80002127aa58) at VOP_CLOSE+0xeb sys/kern/vfs_vops.c:177 vn_closefile(fffffd806b2eb4e0,ffff80002127aa58) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806b2eb4e0,ffff80002127aa58) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806b2eb4e0,ffff80002127aa58) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd806b2eb4e0,ffff80002127aa58) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff80002127aa58) at fdfree+0xf4 sys/kern/kern_descrip.c:1195 exit1(ffff80002127aa58,0,0,1) at exit1+0x340 sys/kern/kern_exit.c:197 sys_exit(ffff80002127aa58,ffff8000226d13d0,ffff8000226d1420) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff8000226d14a0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000226d14a0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe3a50, count: -12 ddb{1}> show registers rdi 0 rsi 0xffff80002127aa5c rbp 0xffff8000226d1070 rbx 0 rdx 0 rcx 0 rax 0xffff80002127aa58 r8 0xffffffff81e5a2be witness_assert+0x1fe r9 0x5 r10 0x294e55dcb0073214 r11 0x29bc207035f174d r12 0x4000 __ALIGN_SIZE+0x3000 r13 0x2000 __ALIGN_SIZE+0x1000 r14 0 r15 0 rip 0xffffffff820a3782 wsevent_fini+0x12 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000226d1050 ss 0x10 wsevent_fini+0x12: movq 0x28(%r14),%r15 ddb{1}> show proc PROC (syz-executor.1) pid=60031 stat=onproc flags process=1008 proc=2000 pri=0, usrpri=74, nice=20 forw=0xffffffffffffffff, list=0xffff80002127b728,0xffffffff828ea588 process=0xffff800021235090 user=0xffff8000226cc000, vmspace=0xfffffd800848e450 estcpu=36, cpticks=4, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 1045 343452 48749 0 3 0x82 nanosleep syz-executor.1 12348 233935 48749 0 3 0x82 nanosleep syz-executor.0 48749 522156 68142 0 3 0x82 thrsleep syz-fuzzer 48749 172268 68142 0 3 0x4000082 nanosleep syz-fuzzer 48749 345090 68142 0 3 0x4000082 thrsleep syz-fuzzer 48749 192295 68142 0 3 0x4000082 thrsleep syz-fuzzer 48749 330486 68142 0 3 0x4000082 thrsleep syz-fuzzer 48749 244764 68142 0 3 0x4000082 thrsleep syz-fuzzer 48749 150496 68142 0 3 0x4000082 thrsleep syz-fuzzer 48749 130391 68142 0 3 0x4000082 kqread syz-fuzzer 68142 306256 45520 0 3 0x10008a pause ksh 45520 92443 34186 0 3 0x92 select sshd 69737 162968 1 0 3 0x100083 ttyin getty 34186 491429 1 0 3 0x80 select sshd 69980 122940 30034 74 3 0x100092 bpf pflogd 30034 231106 1 0 3 0x80 netio pflogd 95476 295823 89564 73 3 0x100090 kqread syslogd 89564 6149 1 0 3 0x100082 netio syslogd 96455 149138 1 77 3 0x100090 poll dhclient 29480 424592 1 0 3 0x80 poll dhclient 13062 46498 0 0 3 0x14200 bored smr 92939 75015 0 0 3 0x14200 pgzero zerothread 14920 180076 0 0 3 0x14200 aiodoned aiodoned 29100 146522 0 0 3 0x14200 syncer update 34522 522196 0 0 3 0x14200 cleaner cleaner 25113 140559 0 0 3 0x14200 reaper reaper 88667 509653 0 0 3 0x14200 pgdaemon pagedaemon 18719 128584 0 0 3 0x14200 bored crynlk 90366 284977 0 0 3 0x14200 bored crypto 34847 24397 0 0 3 0x14200 bored viomb 14612 13291 0 0 3 0x40014200 acpi0 acpi0 47987 189274 0 0 3 0x40014200 idle1 14486 28722 0 0 3 0x14200 bored softnet 53929 205422 0 0 3 0x14200 bored systqmp 912 301013 0 0 3 0x14200 bored systq 54090 298898 0 0 3 0x40014200 bored softclock 81375 151611 0 0 7 0x40014200 idle0 1 150388 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9487 6425K 6444K 78643K 13428 0 pcb 13 8K 8K 78643K 13 0 rtable 105 3K 3K 78643K 199 0 ifaddr 44 10K 10K 78643K 45 0 counters 43 33K 33K 78643K 43 0 ioctlops 0 0K 4K 78643K 1469 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1686 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1825 197K 290K 78643K 13109 0 file desc 5 13K 25K 78643K 1617 0 proc 59 63K 95K 78643K 447 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 33 2K 2K 78643K 33 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 19 95K 95K 78643K 19 0 exec 0 0K 2K 78643K 358 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 78 21K 21K 78643K 3920 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 6 0K 0K 78643K 10 0 temp 66 3959K 4023K 78643K 6404 0 kqueue 3 4K 4K 78643K 3 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 6 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 120 19 0 17 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 25 0 15 1 0 1 1 0 8 0 syncache 296 4 0 4 1 1 0 1 0 8 0 tcpcb 736 10 0 6 1 0 1 1 0 8 0 inpcb 296 39 0 32 1 0 1 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 kcovpl 48 2 0 0 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 11 0 3 1 0 1 1 0 8 0 pfstkey 112 11 0 3 1 0 1 1 0 8 0 pfstate 328 11 0 3 1 0 1 1 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 188 0 0 12 0 12 12 0 8 0 art_table 32 189 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3007 0 1603 88 0 88 88 0 8 0 ffsino 272 3007 0 1603 94 0 94 94 0 8 0 nchpl 144 6112 0 4506 60 0 60 60 0 8 0 uvmvnodes 72 3515 0 0 64 0 64 64 0 8 0 vnodes 208 3515 0 0 185 0 185 185 0 8 0 namei 1024 15181 0 15181 1 0 1 1 0 8 1 percpumem 16 32 0 0 1 0 1 1 0 8 0 scxspl 216 14535 0 14535 9 8 1 8 0 8 1 plimitpl 152 15 0 7 1 0 1 1 0 8 0 sigapl 424 1833 0 1801 4 0 4 4 0 8 0 futexpl 56 10163 0 10163 1 0 1 1 0 8 1 knotepl 112 62 0 42 1 0 1 1 0 8 0 kqueuepl 152 2 0 0 1 0 1 1 0 8 0 pipepl 304 76 0 65 1 0 1 1 0 8 0 fdescpl 496 1817 0 1801 3 0 3 3 0 8 0 filepl 152 7273 0 7169 5 0 5 5 0 8 0 lockfpl 104 3464 0 3462 1 0 1 1 0 8 0 lockfspl 48 1732 0 1730 1 0 1 1 0 8 0 sessionpl 144 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 53 0 44 1 0 1 1 0 8 0 zombiepl 144 1802 0 1800 1 0 1 1 0 8 0 processpl 1056 1833 0 1800 3 0 3 3 0 8 0 procpl 656 3435 0 3395 4 0 4 4 0 8 0 sockpl 400 83 0 64 3 1 2 3 0 8 0 mcl4k 4096 11 0 0 2 0 2 2 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 98 0 0 13 0 13 13 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 190 0 0 11 0 11 11 0 8 0 bufpl 280 5121 0 181 353 0 353 353 0 8 0 anonpl 16 119771 0 115734 18 1 17 17 0 124 0 amapchunkpl 152 5857 0 5726 7 1 6 7 0 158 0 amappl16 192 5040 0 4913 7 0 7 7 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 23 0 19 1 0 1 1 0 8 0 amappl13 168 816 0 811 1 0 1 1 0 8 0 amappl12 160 13 0 8 1 0 1 1 0 8 0 amappl11 152 861 0 844 1 0 1 1 0 8 0 amappl10 144 8 0 6 1 0 1 1 0 8 0 amappl9 136 388 0 387 1 0 1 1 0 8 0 amappl8 128 108 0 86 1 0 1 1 0 8 0 amappl7 120 243 0 236 1 0 1 1 0 8 0 amappl6 112 69 0 59 1 0 1 1 0 8 0 amappl5 104 1954 0 1935 1 0 1 1 0 8 0 amappl4 96 1073 0 1051 1 0 1 1 0 8 0 amappl3 88 914 0 905 1 0 1 1 0 8 0 amappl2 80 12070 0 12003 3 1 2 3 0 8 0 amappl1 72 57658 0 57172 24 14 10 19 0 8 0 amappl 80 3680 0 3636 1 0 1 1 0 84 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 64 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1817 0 1801 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1817 0 1801 1 0 1 1 0 8 0 vmmpekpl 168 11153 0 11131 2 0 2 2 0 8 0 vmmpepl 168 220971 0 219674 81 19 62 77 0 357 0 vmsppl 368 1816 0 1801 2 0 2 2 0 8 0 pdppl 4096 3641 0 3602 57 16 41 45 0 8 2 pvpl 32 415640 0 408376 119 21 98 119 0 265 38 pmappl 232 1816 0 1801 2 1 1 2 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 293 0 20 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff826b7ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x37 kd_curproc sys/dev/kcov.c:570 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x37 sys/dev/kcov.c:143 __mp_lock(ffffffff828ea210) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828ea210) at __mp_lock+0x133 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x1f acpicpu_idle() at acpicpu_idle+0x2eb sys/dev/acpi/acpicpu.c:1206 sched_idle(ffffffff826b7ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at wsevent_fini+0x12: movq 0x28(%r14),%r15 ddb{1}> trace wsevent_fini(0) at wsevent_fini+0x12 sys/dev/wscons/wsevent.c:130 wsmouseclose(4400,81,2000,ffff80002127aa58) at wsmouseclose+0x91 sys/dev/wscons/wsmouse.c:355 spec_close(ffff8000226d1140) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806e363c38,81,fffffd807f7b7960,ffff80002127aa58) at VOP_CLOSE+0xeb sys/kern/vfs_vops.c:177 vn_closefile(fffffd806b2eb4e0,ffff80002127aa58) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806b2eb4e0,ffff80002127aa58) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806b2eb4e0,ffff80002127aa58) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd806b2eb4e0,ffff80002127aa58) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff80002127aa58) at fdfree+0xf4 sys/kern/kern_descrip.c:1195 exit1(ffff80002127aa58,0,0,1) at exit1+0x340 sys/kern/kern_exit.c:197 sys_exit(ffff80002127aa58,ffff8000226d13d0,ffff8000226d1420) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff8000226d14a0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000226d14a0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe3a50, count: -12