uvm_fault(0xfffffd807f00d870, 0x1c, 0, 1) -> e kernel: page fault trap, code=0 Stopped at pckbc_start+0x16e: movsxdq 0x1c(%r14),%rax ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xfffffd807f00d870, 0x1c, 0, 1) -> e pckbc_start(ffff800000026e00,0) at pckbc_start+0x16e sys/dev/ic/pckbc.c:809 end trace frame: 0xffff800020c24930, count: 0 ddb{1}> trace pckbc_start(ffff800000026e00,0) at pckbc_start+0x16e sys/dev/ic/pckbc.c:809 pckbc_enqueue_cmd(ffff800000026e00,0,ffff800020c24957,1,0,1) at pckbc_enqueue_cmd+0x24a sys/dev/ic/pckbc.c:918 pckbd_enable(ffff80000066a380,0) at pckbd_enable+0x125 sys/dev/pckbc/pckbd.c:481 wskbd_mux_close(ffff80000001ce00) at wskbd_mux_close+0x98 sys/dev/wscons/wskbd.c:891 wsmuxclose(4501,1,2000,ffff800020b42270) at wsmuxclose+0xb5 wsmux_do_close sys/dev/wscons/wsmux.c:313 [inline] wsmuxclose(4501,1,2000,ffff800020b42270) at wsmuxclose+0xb5 sys/dev/wscons/wsmux.c:277 spec_close(ffff800020c24aa0) at spec_close+0x3a0 sys/kern/spec_vnops.c:553 VOP_CLOSE(fffffd807e192498,1,fffffd807f7c7a80,ffff800020b42270) at VOP_CLOSE+0x70 sys/kern/vfs_vops.c:174 vn_closefile(fffffd806ea6ed18,ffff800020b42270) at vn_closefile+0x160 vn_close sys/kern/vfs_vnops.c:289 [inline] vn_closefile(fffffd806ea6ed18,ffff800020b42270) at vn_closefile+0x160 sys/kern/vfs_vnops.c:575 fdrop(fffffd806ea6ed18,ffff800020b42270) at fdrop+0xe1 sys/kern/kern_descrip.c:1260 closef(fffffd806ea6ed18,ffff800020b42270) at closef+0x129 sys/kern/kern_descrip.c:1244 doopenat(ffff800020b42270,ffffff9c,20000000,510,0,ffff800020c24ed0) at doopenat+0x846 sys/kern/vfs_syscalls.c:1117 syscall(ffff800020c24f80) at syscall+0x5ac mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c24f80) at syscall+0x5ac sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffb0,0,4,243c0da8010) at Xsyscall+0x128 end of kernel end trace frame: 0x245f8303f80, count: -13 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020c24890 rbx 0 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff800000941e00 rax 0xffffffff81269c64 pckbc_start+0x44 r8 0 r9 0x1 r10 0x5fac2c5d77192d70 r11 0xefc0d4650d66ce75 r12 0xffff800000026e00 r13 0xffff80000066c000 r14 0 r15 0 rip 0xffffffff81269d8e pckbc_start+0x16e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020c24830 ss 0x10 pckbc_start+0x16e: movsxdq 0x1c(%r14),%rax ddb{1}> show proc PROC (syz-executor.0) pid=269490 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020b424c8,0xffff800020b42988 process=0xffff800020b449e8 user=0xffff800020c20000, vmspace=0xfffffd807f00d870 estcpu=36, cpticks=102, pctcpu=1.1 user=0, sys=102, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 40911 288281 77938 0 7 0 syz-executor.0 *40911 269490 77938 0 7 0x4000000 syz-executor.0 40911 340378 77938 0 3 0x4000080 fsleep syz-executor.0 19185 472661 1 0 3 0x100083 ttyin getty 13682 164219 0 0 3 0x14200 bored sosplice 13039 281533 83428 0 3 0x82 nanosleep syz-executor.1 77938 247960 83428 0 3 0x82 nanosleep syz-executor.0 83428 282306 88246 0 3 0x82 thrsleep syz-fuzzer 83428 185125 88246 0 3 0x4000082 nanosleep syz-fuzzer 83428 407333 88246 0 3 0x4000082 thrsleep syz-fuzzer 83428 309333 88246 0 3 0x4000082 kqread syz-fuzzer 83428 146002 88246 0 3 0x4000082 thrsleep syz-fuzzer 83428 118453 88246 0 3 0x4000082 thrsleep syz-fuzzer 83428 287648 88246 0 3 0x4000082 thrsleep syz-fuzzer 83428 12729 88246 0 3 0x4000082 thrsleep syz-fuzzer 83428 387863 88246 0 3 0x4000082 thrsleep syz-fuzzer 83428 264612 88246 0 3 0x4000082 thrsleep syz-fuzzer 88246 328502 65948 0 3 0x10008a pause ksh 65948 75498 74932 0 3 0x92 select sshd 74932 336194 1 0 3 0x80 select sshd 34838 363075 42920 73 3 0x100010 biowait syslogd 42920 448090 1 0 3 0x100082 netio syslogd 20918 346299 1 77 3 0x100090 poll dhclient 27906 24302 1 0 3 0x80 poll dhclient 9544 28589 0 0 3 0x14200 pgzero zerothread 27897 386120 0 0 3 0x14200 aiodoned aiodoned 31545 144853 0 0 3 0x14200 syncer update 80774 17299 0 0 3 0x14200 cleaner cleaner 84065 104207 0 0 3 0x14200 reaper reaper 28410 407096 0 0 3 0x14200 pgdaemon pagedaemon 87114 304357 0 0 3 0x14200 bored crynlk 58391 72757 0 0 3 0x14200 bored crypto 20987 291356 0 0 3 0x40014200 acpi0 acpi0 95438 492443 0 0 3 0x40014200 idle1 98954 61411 0 0 3 0x14200 bored softnet 38922 285156 0 0 3 0x14200 bored systqmp 480 149569 0 0 3 0x14200 bored systq 45041 523491 0 0 3 0x40014200 bored softclock 94693 484999 0 0 3 0x40014200 idle0 1 375398 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 40911 (syz-executor.0) thread 0xffff800020b42270 (269490) exclusive rwlock fdlock r = 0 (0xfffffd806f1c0bd0) locked @ /syzkaller/managers/multicore/kernel/sys/kern/vfs_syscalls.c:1104 #0 witness_lock+0x58a sys/kern/subr_witness.c:1205 #1 doopenat+0x828 #2 syscall+0x5ac mi_syscall sys/sys/syscall_mi.h:99 [inline] #2 syscall+0x5ac sys/arch/amd64/amd64/trap.c:574 #3 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 2 (0xffffffff82335598) locked @ /syzkaller/managers/multicore/kernel/sys/arch/amd64/amd64/trap.c:161 #0 witness_lock+0x58a sys/kern/subr_witness.c:1205 #1 syscall+0x47f mi_syscall sys/sys/syscall_mi.h:91 [inline] #1 syscall+0x47f sys/arch/amd64/amd64/trap.c:574 #2 Xsyscall+0x128 Process 34838 (syslogd) thread 0xffff800020b95c30 (363075) exclusive rrwlock inode r = 0 (0xfffffd806ebc34d8) locked @ /syzkaller/managers/multicore/kernel/sys/ufs/ufs/ufs_vnops.c:1547 #0 witness_lock+0x58a sys/kern/subr_witness.c:1205 #1 _rw_enter+0x44d sys/kern/kern_rwlock.c:280 #2 _rrw_enter+0x60 sys/kern/kern_rwlock.c:410 #3 VOP_LOCK+0x57 sys/kern/vfs_vops.c:602 #4 vn_lock+0x6e sys/kern/vfs_vnops.c:549 #5 sys_fsync+0x114 sys/kern/vfs_syscalls.c:2704 #6 syscall+0x5ac mi_syscall sys/sys/syscall_mi.h:99 [inline] #6 syscall+0x5ac sys/arch/amd64/amd64/trap.c:574 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9498 6349K 6357K 78643K 10781 0 0 pcb 23 9K 11K 78643K 358 0 0 rtable 100 3K 4K 78643K 250 0 0 ifaddr 48 11K 12K 78643K 91 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 2K 78643K 17 0 0 iov 0 0K 28K 78643K 65 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1205 75K 76K 78643K 1540 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 13 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 0K 78643K 83 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1792 194K 288K 78643K 12592 0 0 file desc 5 13K 21K 78643K 526 0 0 sigio 0 0K 0K 78643K 4 0 0 proc 41 38K 58K 78643K 322 0 0 subproc 64 65538K 67586K 78643K 70 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 69 0 0 in_multi 33 2K 2K 78643K 53 0 0 ether_multi 1 0K 0K 78643K 6 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 72 318K 318K 78643K 72 0 0 exec 0 0K 1K 78643K 225 0 0 pfkey data 0 0K 4K 78643K 2 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 84 20K 29K 78643K 2463 0 0 UVM aobj 37 2K 2K 78643K 40 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 14 0 0 NDP 9 0K 0K 78643K 25 0 0 temp 134 2363K 2427K 78643K 4223 0 0 kqueue 0 0K 0K 78643K 7 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{1}> 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 280 255 0 247 1 0 1 1 0 8 0 plimitpl 152 17 0 10 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 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 544 92 0 87 1 0 1 1 0 8 0 nd6 48 4 0 0 1 0 1 1 0 8 0 ppxss 1128 7 0 7 4 3 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 186 0 0 12 0 12 12 0 8 0 art_table 32 187 0 0 2 0 2 2 0 8 0 art_node 16 40 0 6 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 79 0 69 1 0 1 1 0 8 0 shmpl 112 38 0 3 2 0 2 2 0 8 1 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2428 0 1016 46 0 46 46 0 8 0 ffsino 272 2428 0 1016 95 0 95 95 0 8 0 nchpl 144 3376 0 1753 61 0 61 61 0 8 0 uvmvnodes 72 2533 0 0 47 0 47 47 0 8 0 vnodes 200 2533 0 0 134 0 134 134 0 8 0 namei 1024 9339 0 9339 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 3 0 3 2 2 0 1 0 8 0 scxspl 192 9744 0 9743 11 10 1 6 0 8 0 sigapl 432 695 0 682 2 0 2 2 0 8 0 futexpl 56 6221 0 6220 1 0 1 1 0 8 0 knotepl 112 204 0 177 3 2 1 2 0 8 0 kqueuepl 104 179 0 177 1 0 1 1 0 8 0 pipepl 112 492 0 473 4 3 1 2 0 8 0 fdescpl 488 696 0 682 3 1 2 3 0 8 0 filepl 152 4270 0 4174 8 3 5 7 0 8 1 lockfpl 104 175 0 175 2 1 1 1 0 8 1 lockfspl 32 203 0 203 2 1 1 1 0 8 1 sessionpl 112 18 0 8 1 0 1 1 0 8 0 pgrppl 48 29 0 19 1 0 1 1 0 8 0 ucredpl 96 935 0 928 1 0 1 1 0 8 0 zombiepl 144 682 0 681 2 1 1 1 0 8 0 processpl 840 711 0 681 4 0 4 4 0 8 0 procpl 600 1871 0 1830 4 0 4 4 0 8 0 sosppl 128 14 0 14 3 2 1 1 0 8 1 sockpl 384 566 0 548 4 1 3 4 0 8 1 mcl64k 65536 229 0 0 29 6 23 29 0 8 1 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 106 0 0 13 0 13 13 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 311 0 0 19 0 19 19 0 8 0 bufpl 256 6174 0 1021 323 0 323 323 0 8 0 anonpl 16 77689 0 69629 61 21 40 48 0 125 5 amapchunkpl 152 3828 0 3737 10 1 9 9 0 158 4 amappl16 192 3408 0 2983 45 22 23 33 0 8 0 amappl15 184 5 0 4 2 1 1 1 0 8 0 amappl14 176 7 0 6 2 1 1 1 0 8 0 amappl13 168 27 0 23 1 0 1 1 0 8 0 amappl12 160 278 0 275 2 1 1 1 0 8 0 amappl11 152 424 0 414 1 0 1 1 0 8 0 amappl10 144 59 0 57 2 1 1 1 0 8 0 amappl9 136 592 0 589 1 0 1 1 0 8 0 amappl8 128 411 0 386 1 0 1 1 0 8 0 amappl7 120 36 0 31 1 0 1 1 0 8 0 amappl6 112 56 0 47 1 0 1 1 0 8 0 amappl5 104 131 0 119 1 0 1 1 0 8 0 amappl4 96 279 0 258 2 1 1 2 0 8 0 amappl3 88 148 0 142 1 0 1 1 0 8 0 amappl2 80 5705 0 5654 2 0 2 2 0 8 0 amappl1 72 22959 0 22539 24 14 10 19 0 8 0 amappl 72 2080 0 2045 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 39 0 3 1 0 1 1 0 8 0 uaddrrnd 24 696 0 682 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 696 0 682 1 0 1 1 0 8 0 vmmpekpl 168 9887 0 9863 2 0 2 2 0 8 0 vmmpepl 168 81115 0 79746 96 30 66 72 0 357 0 vmsppl 360 695 0 682 2 0 2 2 0 8 0 pdppl 4096 1399 0 1364 5 0 5 5 0 8 0 pvpl 32 251363 0 239817 139 30 109 128 0 265 14 pmappl 224 695 0 682 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 508 0 9 15 0 15 15 0 8 0