uvm_fault(0xfffffd807f00a170, 0x648, 0, 2) -> e kernel: page fault trap, code=0 Stopped at x86_send_ipi+0x24: lock orl %r15d,0x648(%r14) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd807f00a170, 0x648, 0, 2) -> e x86_send_ipi(0,2) at x86_send_ipi+0x24 x86_atomic_setbits_u32 machine/atomic.h:292 [inline] x86_send_ipi(0,2) at x86_send_ipi+0x24 sys/arch/amd64/amd64/ipi.c:48 end trace frame: 0xffff8000223790e0, count: 0 ddb{0}> trace x86_send_ipi(0,2) at x86_send_ipi+0x24 x86_atomic_setbits_u32 machine/atomic.h:292 [inline] x86_send_ipi(0,2) at x86_send_ipi+0x24 sys/arch/amd64/amd64/ipi.c:48 vm_intr_pending(ffff8000223792b0) at vm_intr_pending+0x225 sys/arch/amd64/amd64/vmm.c:681 VOP_IOCTL(fffffd806e1aa5b0,800c5606,ffff8000223792b0,3,fffffd807f7c6780,ffff800020ab0c70) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd8064a068e8,800c5606,ffff8000223792b0,ffff800020ab0c70) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 sys_ioctl(ffff800020ab0c70,ffff8000223793c8,ffff800022379410) at sys_ioctl+0x5b9 syscall(ffff800022379490) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800022379490) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc12eb5b2640, count: -7 ddb{0}> show registers rdi 0xffffffff81249794 x86_send_ipi+0x24 rsi 0x204 rbp 0xffff800022379080 rbx 0x1 rdx 0x205 rcx 0xffff800021952000 rax 0xffff800021952000 r8 0xffffffff81488c4b vmmioctl+0x3b r9 0x7 r10 0x339066493818f343 r11 0x9988779b02308434 r12 0 r13 0xffff800020add180 r14 0 r15 0x2 rip 0xffffffff81249794 x86_send_ipi+0x24 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800022379050 ss 0x10 x86_send_ipi+0x24: lock orl %r15d,0x648(%r14) ddb{0}> show proc PROC (syz-executor.0) pid=320750 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ab1b40,0xffffffff8263b120 process=0xffff800020add180 user=0xffff800022374000, vmspace=0xfffffd807f00a170 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 82842 37448 85291 0 2 0 syz-executor.0 *82842 320750 85291 0 7 0x4000000 syz-executor.0 20202 78558 32536 0 2 0 syz-executor.1 20202 373488 32536 0 7 0x4000000 syz-executor.1 85291 225356 29976 0 3 0x82 nanosleep syz-executor.0 32536 171865 29976 0 3 0x82 nanosleep syz-executor.1 2313 270226 1 0 3 0x100083 ttyin getty 63814 268758 0 0 3 0x14200 bored sosplice 29976 203904 18226 0 3 0x82 thrsleep syz-fuzzer 29976 147593 18226 0 3 0x4000082 nanosleep syz-fuzzer 29976 7123 18226 0 3 0x4000082 thrsleep syz-fuzzer 29976 387584 18226 0 3 0x4000082 thrsleep syz-fuzzer 29976 231181 18226 0 3 0x4000082 thrsleep syz-fuzzer 29976 3048 18226 0 3 0x4000082 kqread syz-fuzzer 29976 97762 18226 0 3 0x4000082 thrsleep syz-fuzzer 29976 217559 18226 0 3 0x4000082 thrsleep syz-fuzzer 29976 437295 18226 0 3 0x4000082 thrsleep syz-fuzzer 29976 473149 18226 0 3 0x4000082 thrsleep syz-fuzzer 18226 131922 29273 0 3 0x10008a pause ksh 29273 388195 94123 0 3 0x92 select sshd 94123 246771 1 0 3 0x80 select sshd 51146 435598 83618 74 3 0x100092 bpf pflogd 83618 300905 1 0 3 0x80 netio pflogd 7896 305310 35265 73 3 0x100090 kqread syslogd 35265 297304 1 0 3 0x100082 netio syslogd 77694 230574 1 77 3 0x100090 poll dhclient 71242 414694 1 0 3 0x80 poll dhclient 80570 455850 0 0 2 0x14200 zerothread 25358 107603 0 0 3 0x14200 aiodoned aiodoned 8291 185369 0 0 3 0x14200 syncer update 98595 130531 0 0 3 0x14200 cleaner cleaner 73640 96374 0 0 3 0x14200 reaper reaper 39615 340092 0 0 3 0x14200 pgdaemon pagedaemon 4049 467213 0 0 3 0x14200 bored crynlk 76469 438477 0 0 3 0x14200 bored crypto 44095 104332 0 0 3 0x40014200 acpi0 acpi0 16932 410921 0 0 3 0x40014200 idle1 96925 490126 0 0 3 0x14200 bored softnet 10728 451719 0 0 3 0x14200 bored systqmp 19052 271780 0 0 3 0x14200 bored systq 64142 425917 0 0 3 0x40014200 bored softclock 12814 175334 0 0 3 0x40014200 idle0 22401 237660 0 0 3 0x14200 bored smr 1 79411 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 82842 (syz-executor.0) thread 0xffff800020ab0c70 (320750) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8263a9c8) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:83 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:555 #2 Xsyscall+0x128 Process 20202 (syz-executor.1) thread 0xffff800020ab1b40 (373488) exclusive rrwlock inode r = 0 (0xfffffd805e693918) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 rw_enter+0x447 sys/kern/kern_rwlock.c:306 #2 rrw_enter+0x4f sys/kern/kern_rwlock.c:435 #3 ufs_ihashins+0x45 sys/ufs/ufs/ufs_ihash.c:140 #4 ffs_vget+0x13e sys/ufs/ffs/ffs_vfsops.c:1352 #5 ffs_inode_alloc+0x1cf sys/ufs/ffs/ffs_alloc.c:392 #6 ufs_makeinode+0xaa sys/ufs/ufs/ufs_vnops.c:1832 #7 ufs_create+0x41 sys/ufs/ufs/ufs_vnops.c:152 #8 VOP_CREATE+0xc0 sys/kern/vfs_vops.c:113 #9 vn_open+0x2a4 sys/kern/vfs_vnops.c:122 #10 doopenat+0x28b sys/kern/vfs_syscalls.c:1157 #11 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #11 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd805e6931a8) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 rw_enter+0x447 sys/kern/kern_rwlock.c:306 #2 rrw_enter+0x4f sys/kern/kern_rwlock.c:435 #3 VOP_LOCK+0xf0 sys/kern/vfs_vops.c:615 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:571 #5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419 #6 namei+0x63c sys/kern/vfs_lookup.c:249 #7 vn_open+0x1a6 sys/kern/vfs_vnops.c:113 #8 doopenat+0x28b sys/kern/vfs_syscalls.c:1157 #9 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #9 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #10 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9618 6487K 9441K 78643K 111204 0 0 pcb 13 10K 12K 78643K 6109 0 0 rtable 106 13K 15K 78643K 20062 0 0 ifaddr 1206 105K 111K 78643K 5898 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 2748 0 0 iov 0 0K 50K 78643K 5575 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1224 77K 78K 78643K 55664 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 9K 78643K 365 0 0 VM map 273 136K 136K 78643K 365 0 0 sem 12 0K 0K 78643K 9148 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 6 17K 25K 78643K 27330 0 0 sigio 0 0K 0K 78643K 455 0 0 proc 62 63K 95K 78643K 11131 0 0 subproc 32 2K 2K 78643K 3302 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 1K 78643K 2806 0 0 in_multi 11 0K 2K 78643K 3631 0 0 ether_multi 1 0K 0K 78643K 280 0 0 mrt 5 0K 0K 78643K 186 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 126 556K 556K 78643K 126 0 0 exec 0 0K 1K 78643K 5659 0 0 pfkey data 0 0K 4K 78643K 16 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 592 2182K 2184K 78643K 98011 0 0 UVM aobj 130 4K 4K 78643K 132 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 2K 78643K 6083 0 0 NDP 25 0K 1K 78643K 1576 0 0 temp 189 3556K 4200K 78643K 1000654 0 0 kqueue 0 0K 0K 78643K 535 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 64 679 0 676 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 2721 0 2719 1 0 1 1 0 8 0 rtentry 112 3164 0 3131 2 0 2 2 0 8 0 unpcb 120 17962 0 17926 10 8 2 2 0 8 0 syncache 264 144 0 144 66 66 0 1 0 8 0 tcpqe 32 49 0 49 32 32 0 1 0 8 0 tcpcb 544 13888 0 13884 167 166 1 14 0 8 0 ipq 40 4 0 4 4 4 0 1 0 8 0 ipqe 40 8 0 8 4 4 0 1 0 8 0 inpcb 280 50131 0 50124 200 197 3 10 0 8 2 rttmr 72 67 0 67 20 20 0 1 0 8 0 ip6q 72 11 0 11 9 8 1 1 0 8 1 ip6af 40 22 0 22 8 7 1 1 0 8 1 nd6 48 469 0 469 12 12 0 1 0 8 0 pkpcb 40 154 0 154 53 53 0 1 0 8 0 swfcl 56 6 0 0 1 0 1 1 0 8 0 ppxss 1128 722 0 722 82 81 1 1 0 8 1 pffrag 232 877 0 877 83 82 1 1 0 482 1 pffrnode 88 874 0 874 83 82 1 1 0 8 1 pffrent 40 32108 0 32108 83 82 1 1 0 8 1 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 2431 0 2393 1 0 1 1 0 8 0 pfstkey 112 2433 0 2395 7 5 2 3 0 8 0 pfstate 328 2433 0 2395 25 18 7 8 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 63 0 62 41 40 1 4 0 8 0 art_heap4 256 13139 0 12899 135 116 19 23 0 8 0 art_table 32 13202 0 12961 4 1 3 3 0 8 0 art_node 16 3163 0 3132 1 0 1 1 0 8 0 sysvmsgpl 40 51 0 43 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 9146 0 9136 1 0 1 1 0 8 0 shmpl 112 130 0 2 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 42551 0 40913 53 0 53 53 0 8 0 ffsino 272 42551 0 40913 112 2 110 110 0 8 0 nchpl 144 84466 0 83904 62 41 21 61 0 8 0 uvmvnodes 72 11519 0 0 210 0 210 210 0 8 0 vnodes 208 11519 0 0 607 0 607 607 0 8 0 namei 1024 352091 0 352090 13 12 1 1 0 8 0 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 276 0 5 34 0 34 34 0 8 0 vmpool 552 363 0 92 21 1 20 20 0 8 0 scsiplug 64 46 0 46 35 35 0 1 0 8 0 scxspl 192 282369 0 282369 174 172 2 4 0 8 2 plimitpl 152 2094 0 2086 1 0 1 1 0 8 0 sigapl 432 26953 0 26937 7 5 2 3 0 8 0 futexpl 56 744016 0 744016 6 5 1 1 0 8 1 knotepl 112 7893 0 7874 25 24 1 3 0 8 0 kqueuepl 104 28671 0 28669 35 34 1 4 0 8 0 pipepl 160 24046 0 24025 56 54 2 3 0 8 1 fdescpl 488 26954 0 26937 3 0 3 3 0 8 0 filepl 152 321478 0 321374 223 217 6 14 0 8 1 lockfpl 104 10847 0 10846 1 0 1 1 0 8 0 lockfspl 48 3334 0 3333 1 0 1 1 0 8 0 sessionpl 112 211 0 200 1 0 1 1 0 8 0 pgrppl 48 554 0 543 1 0 1 1 0 8 0 ucredpl 96 27800 0 27788 1 0 1 1 0 8 0 zombiepl 144 26957 0 26957 9 8 1 1 0 8 1 processpl 896 26990 0 26957 8 4 4 5 0 8 0 procpl 632 86576 0 86532 15 10 5 5 0 8 1 srpgc 64 281 0 281 89 89 0 1 0 8 0 sosppl 128 894 0 894 106 105 1 1 0 8 1 sockpl 384 71669 0 71623 294 286 8 17 0 8 1 mcl64k 65536 2406 0 0 248 218 30 66 0 8 0 mcl16k 16384 99 0 0 9 6 3 3 0 8 0 mcl12k 12288 82 0 0 2 0 2 2 0 8 0 mcl9k 9216 49 0 0 3 1 2 2 0 8 0 mcl8k 8192 97 0 0 11 8 3 3 0 8 0 mcl4k 4096 65 0 0 7 4 3 3 0 8 0 mcl2k2 2112 17 0 0 2 0 2 2 0 8 0 mcl2k 2048 517 0 0 20 9 11 19 0 8 0 mtagpl 80 564 0 0 3 2 1 2 0 8 0 mbufpl 256 2772 0 0 57 11 46 56 0 8 0 bufpl 256 86462 0 74942 721 0 721 721 0 8 0 anonpl 16 3677880 0 3641019 775 622 153 165 0 124 3 amapchunkpl 152 210444 0 209656 374 336 38 43 0 158 5 amappl16 192 152536 0 150824 837 745 92 98 0 8 0 amappl15 184 5601 0 5601 25 25 0 1 0 8 0 amappl14 176 5332 0 5322 1 0 1 1 0 8 0 amappl13 168 3184 0 3182 20 19 1 1 0 8 0 amappl12 160 2784 0 2777 2 1 1 1 0 8 0 amappl11 152 4616 0 4600 1 0 1 1 0 8 0 amappl10 144 2872 0 2862 1 0 1 1 0 8 0 amappl9 136 6274 0 6270 1 0 1 1 0 8 0 amappl8 128 6041 0 5906 5 0 5 5 0 8 0 amappl7 120 3659 0 3650 1 0 1 1 0 8 0 amappl6 112 4074 0 4055 1 0 1 1 0 8 0 amappl5 104 4525 0 4509 1 0 1 1 0 8 0 amappl4 96 26087 0 26050 1 0 1 1 0 8 0 amappl3 88 6726 0 6715 1 0 1 1 0 8 0 amappl2 80 208953 0 208853 12 9 3 3 0 8 0 amappl1 72 627597 0 627146 25 15 10 20 0 8 0 amappl 80 90796 0 90589 5 0 5 5 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 17 0 17 1 1 0 1 0 8 0 aobjpl 64 131 0 2 3 0 3 3 0 8 0 uaddrrnd 24 27317 0 26937 3 0 3 3 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 27317 0 26937 3 0 3 3 0 8 0 vmmpekpl 168 191791 0 191726 5 1 4 4 0 8 0 vmmpepl 168 3539730 0 3535942 1377 1170 207 228 0 357 37 vmsppl 368 26953 0 26937 2 0 2 2 0 8 0 pdppl 4096 54641 0 54329 54 14 40 40 0 8 0 pvpl 32 12264406 0 12239464 1343 1126 217 276 0 265 2 pmappl 232 27316 0 27029 18 1 17 17 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 1604 0 609 30 1 29 29 0 8 0