uvm_fault(0xffffffff828d0840, 0xa, 0, 1) -> e kernel: page fault trap, code=0 Stopped at vio_rxeof+0x191: movzwl 0xa(%r15),%eax ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff828d0840, 0xa, 0, 1) -> e vio_rxeof(ffff80000017c000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018 end trace frame: 0xffff800020dcf180, count: 0 ddb{0}> trace vio_rxeof(ffff80000017c000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018 vio_rx_intr(ffff80000017c050) at vio_rx_intr+0x4d sys/dev/pv/if_vio.c:1056 intr_handler(ffff800020dcf1e0,ffff800000256b80) at intr_handler+0x8f sys/arch/amd64/amd64/intr.c:536 Xintr_ioapic_edge19_untramp() at Xintr_ioapic_edge19_untramp+0x19f Xspllower() at Xspllower+0x19 uvm_unmap_detach(ffff800020dcf370,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd807efff8a0) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd807efff8a0) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020e9b768) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297 reaper(ffff800020d89110) at reaper+0x189 sys/kern/kern_exit.c:456 end trace frame: 0x0, count: -10 ddb{0}> show registers rdi 0xc rsi 0xc rbp 0xffff800020dcf120 rbx 0xffff80000017c000 rdx 0 rcx 0xffffffff82722ff0 cpu_info_full_primary+0x1ff0 rax 0xffffffff82722ff0 cpu_info_full_primary+0x1ff0 r8 0x2 r9 0x5 r10 0x14bfab3c533c75b3 r11 0x6383359386cd9dcb r12 0xffff800000024c00 r13 0xc r14 0xfffffd806954cc00 r15 0 rip 0xffffffff822413e1 vio_rxeof+0x191 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020dcf090 ss 0x10 vio_rxeof+0x191: movzwl 0xa(%r15),%eax ddb{0}> show proc PROC (reaper) pid=459364 stat=onproc flags process=14000 proc=200 pri=4, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020d88ea0,0xffff800020d89ae0 process=0xffff800020dbcf88 user=0xffff800020dca000, vmspace=0xffffffff828d0840 estcpu=0, cpticks=2, pctcpu=0.24 user=0, sys=0, intr=1 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 26069 84533 0 0 3 0x14200 bored sosplice 28208 435333 97557 0 3 0x82 nanosleep syz-executor.1 80300 27706 97557 0 3 0x2 biowait syz-executor.0 97557 452022 56511 0 3 0x82 nanosleep syz-fuzzer 97557 116917 56511 0 3 0x4000082 nanosleep syz-fuzzer 97557 523160 56511 0 3 0x4000082 thrsleep syz-fuzzer 97557 517436 56511 0 3 0x4000082 thrsleep syz-fuzzer 97557 181921 56511 0 3 0x4000082 thrsleep syz-fuzzer 97557 513465 56511 0 3 0x4000082 thrsleep syz-fuzzer 97557 104757 56511 0 3 0x4000082 kqread syz-fuzzer 97557 17228 56511 0 3 0x4000082 thrsleep syz-fuzzer 97557 252317 56511 0 3 0x4000082 thrsleep syz-fuzzer 97557 394303 56511 0 3 0x4000082 thrsleep syz-fuzzer 56511 128519 98902 0 3 0x10008a pause ksh 98902 199269 52229 0 3 0x92 select sshd 16805 256662 1 0 3 0x100083 ttyin getty 52229 20072 1 0 3 0x80 select sshd 65501 170654 13057 74 3 0x100092 bpf pflogd 13057 209426 1 0 3 0x80 netio pflogd 54766 10476 78343 73 3 0x100090 kqread syslogd 78343 239346 1 0 3 0x100082 netio syslogd 59821 472066 1 77 3 0x100090 poll dhclient 52429 201943 1 0 3 0x80 poll dhclient 42096 286289 0 0 3 0x14200 bored smr 90878 126136 0 0 3 0x14200 pgzero zerothread 97156 170481 0 0 3 0x14200 aiodoned aiodoned 1440 367770 0 0 3 0x14200 syncer update 38047 287926 0 0 3 0x14200 cleaner cleaner *25093 459364 0 0 7 0x14200 reaper 37127 74296 0 0 3 0x14200 pgdaemon pagedaemon 97701 257423 0 0 3 0x14200 bored crynlk 48362 335069 0 0 3 0x14200 bored crypto 17760 501344 0 0 3 0x40014200 acpi0 acpi0 539 417413 0 0 7 0x40014200 idle1 54583 420167 0 0 3 0x14200 bored softnet 26320 295739 0 0 3 0x14200 bored systqmp 86159 303181 0 0 3 0x14200 bored systq 16778 24780 0 0 3 0x40014200 bored softclock 12745 46440 0 0 3 0x40014200 idle0 1 475869 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 80300 (syz-executor.0) thread 0xffff800020dddd48 (27706) exclusive rrwlock inode r = 0 (0xfffffd8077bd8700) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 ufs_ihashins+0x45 sys/ufs/ufs/ufs_ihash.c:140 #4 ffs_vget+0x13e sys/ufs/ffs/ffs_vfsops.c:1358 #5 ffs_inode_alloc+0x1e2 sys/ufs/ffs/ffs_alloc.c:394 #6 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #7 VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:450 #8 domkdirat+0x121 sys/kern/vfs_syscalls.c:3051 #9 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #9 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #10 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8077bd8810) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419 #6 namei+0x63c sys/kern/vfs_lookup.c:249 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3036 #8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #9 Xsyscall+0x128 Process 25093 (reaper) thread 0xffff800020d89110 (459364) exclusive kernel_lock &kernel_lock r = 2 (0xffffffff8292f068) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 #2 uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 #3 uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 #4 uvm_exit+0x29 sys/uvm/uvm_glue.c:297 #5 reaper+0x189 sys/kern/kern_exit.c:456 #6 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9477 6400K 7175K 78643K 10971 0 pcb 13 8K 8K 78643K 33 0 rtable 107 3K 3K 78643K 211 0 ifaddr 49 11K 11K 78643K 54 0 counters 43 33K 33K 78643K 43 0 ioctlops 0 0K 4K 78643K 1479 0 iov 0 0K 12K 78643K 4 0 mount 1 1K 1K 78643K 1 0 vnodes 1225 77K 77K 78643K 1312 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 16 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 110 0 sigio 0 0K 0K 78643K 10 0 proc 60 63K 95K 78643K 458 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 3 0 in_multi 33 2K 2K 78643K 43 0 ether_multi 1 0K 0K 78643K 3 0 mrt 0 0K 0K 78643K 4 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 31 148K 148K 78643K 31 0 exec 0 0K 1K 78643K 208 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 123 23K 23K 78643K 1288 0 UVM aobj 5 2K 2K 78643K 5 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 8 0 NDP 7 0K 0K 78643K 11 0 temp 82 3854K 3918K 78643K 2446 0 kqueue 3 4K 6K 78643K 6 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> 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 80 23 0 21 1 0 1 1 0 8 0 rtentry 112 49 0 4 2 0 2 2 0 8 0 unpcb 120 95 0 85 1 0 1 1 0 8 0 syncache 264 5 0 5 2 2 0 1 0 8 0 tcpqe 32 400 0 400 2 2 0 1 0 8 0 tcpcb 544 32 0 24 2 0 2 2 0 8 0 inpcb 296 97 0 90 1 0 1 1 0 8 0 rttmr 72 1 0 1 1 0 1 1 0 8 1 nd6 48 9 0 2 1 0 1 1 0 8 0 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 20 0 3 1 0 1 1 0 8 0 pfstkey 112 20 0 3 1 0 1 1 0 8 0 pfstate 328 20 0 3 2 0 2 2 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 256 191 0 0 12 0 12 12 0 8 0 art_table 32 192 0 0 2 0 2 2 0 8 0 art_node 16 48 0 7 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 4 1 1 0 1 0 8 0 semupl 112 6 0 6 1 0 1 1 0 8 1 semapl 112 14 0 4 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1515 0 109 89 0 89 89 0 8 1 ffsino 272 1515 0 109 95 1 94 94 0 8 0 nchpl 144 1837 0 226 60 0 60 60 0 8 0 uvmvnodes 72 1645 0 0 30 0 30 30 0 8 0 vnodes 208 1645 0 0 87 0 87 87 0 8 0 namei 1024 4890 0 4889 2 1 1 1 0 8 0 percpumem 16 32 0 0 1 0 1 1 0 8 0 scxspl 192 5440 0 5439 7 6 1 6 0 8 0 plimitpl 152 17 0 9 1 0 1 1 0 8 0 sigapl 424 326 0 295 4 0 4 4 0 8 0 futexpl 56 1366 0 1366 1 0 1 1 0 8 1 knotepl 112 82 0 63 1 0 1 1 0 8 0 kqueuepl 144 52 0 50 1 0 1 1 0 8 0 pipepl 304 101 0 91 2 1 1 2 0 8 0 fdescpl 496 310 0 295 3 0 3 3 0 8 0 filepl 152 1636 0 1536 6 1 5 5 0 8 1 lockfpl 104 21 0 20 1 0 1 1 0 8 0 lockfspl 48 10 0 9 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 96 0 87 1 0 1 1 0 8 0 zombiepl 144 295 0 294 2 1 1 1 0 8 0 processpl 992 326 0 294 6 1 5 5 0 8 0 procpl 624 511 0 470 4 0 4 4 0 8 0 sockpl 400 215 0 196 5 2 3 4 0 8 1 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 272 0 0 33 0 33 33 0 8 0 mtagpl 96 52 0 0 2 0 2 2 0 8 0 mbufpl 256 290 0 0 18 0 18 18 0 8 0 bufpl 280 3448 0 133 237 0 237 237 0 8 0 anonpl 16 54376 0 37743 85 1 84 84 0 124 17 amapchunkpl 152 1741 0 1572 11 0 11 11 0 158 2 amappl16 192 1726 0 856 55 3 52 53 0 8 8 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 63 0 56 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 11 0 7 1 0 1 1 0 8 0 amappl11 152 88 0 71 1 0 1 1 0 8 0 amappl10 144 22 0 18 1 0 1 1 0 8 0 amappl9 136 393 0 391 1 0 1 1 0 8 0 amappl8 128 365 0 327 2 0 2 2 0 8 0 amappl7 120 125 0 113 1 0 1 1 0 8 0 amappl6 112 61 0 56 2 1 1 1 0 8 0 amappl5 104 166 0 152 1 0 1 1 0 8 0 amappl4 96 525 0 495 1 0 1 1 0 8 0 amappl3 88 106 0 98 1 0 1 1 0 8 0 amappl2 80 1539 0 1466 2 0 2 2 0 8 0 amappl1 72 17616 0 17154 23 13 10 18 0 8 0 amappl 80 772 0 723 2 0 2 2 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 4 0 0 1 0 1 1 0 8 0 uaddrrnd 24 310 0 295 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 310 0 295 1 0 1 1 0 8 0 vmmpekpl 168 6550 0 6518 2 0 2 2 0 8 0 vmmpepl 168 46185 0 44143 129 15 114 119 0 357 20 vmsppl 368 309 0 294 2 0 2 2 0 8 0 pdppl 4096 627 0 588 7 1 6 6 0 8 0 pvpl 32 166220 0 146612 197 0 197 197 0 265 37 pmappl 232 309 0 294 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 279 0 8 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace vio_rxeof(ffff80000017c000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018 vio_rx_intr(ffff80000017c050) at vio_rx_intr+0x4d sys/dev/pv/if_vio.c:1056 intr_handler(ffff800020dcf1e0,ffff800000256b80) at intr_handler+0x8f sys/arch/amd64/amd64/intr.c:536 Xintr_ioapic_edge19_untramp() at Xintr_ioapic_edge19_untramp+0x19f Xspllower() at Xspllower+0x19 uvm_unmap_detach(ffff800020dcf370,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd807efff8a0) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd807efff8a0) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020e9b768) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297 reaper(ffff800020d89110) at reaper+0x189 sys/kern/kern_exit.c:456 end trace frame: 0x0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d70ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 acpicpu_idle() at acpicpu_idle+0x331 sys/dev/acpi/acpicpu.c:1187 sched_idle(ffff800020d70ff0) at sched_idle+0x3f7 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5