uvm_fault(0xffffffff828d4108, 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(0xffffffff828d4108, 0xa, 0, 1) -> e vio_rxeof(ffff80000017c000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018 end trace frame: 0xffff800020d910d0, 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(ffff800020d91130,ffff800000256b80) at intr_handler+0x8f sys/arch/amd64/amd64/intr.c:536 Xintr_ioapic_edge19_untramp() at Xintr_ioapic_edge19_untramp+0x19f acpicpu_idle() at acpicpu_idle+0x331 sys/dev/acpi/acpicpu.c:1187 sched_idle(ffffffff82738ff0) at sched_idle+0x3f7 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -6 ddb{0}> show registers rdi 0xc rsi 0xc rbp 0xffff800020d91070 rbx 0xffff80000017c000 rdx 0xffffffff823a0ba6 vio_rxeof+0x186 rcx 0xffff8000001ad000 rax 0xffffffff82738ff0 cpu_info_full_primary+0x1ff0 r8 0x2 r9 0 r10 0x1d0204cef23c175d r11 0xdcb11140a50a8a22 r12 0xffff800000024c00 r13 0xc r14 0xfffffd8063d27400 r15 0 rip 0xffffffff823a0bb1 vio_rxeof+0x191 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020d90fe0 ss 0x10 vio_rxeof+0x191: movzwl 0xa(%r15),%eax ddb{0}> show proc PROC (idle0) pid=250233 stat=onproc flags process=14000 proc=40000200 pri=0, usrpri=50, nice=20 forw=0x652f95d879daf7df, list=0xffff800020d89b28,0xffff800020d89648 process=0xffff800020d8b3b0 user=0xffff800020d8c000, vmspace=0xffffffff828d4108 estcpu=0, cpticks=5184, pctcpu=0.0 user=0, sys=0, intr=1 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 10575 312996 69885 0 3 0x80 nanosleep syz-executor.1 10575 179181 69885 0 3 0x4000080 fsleep syz-executor.1 10575 412552 69885 0 3 0x4000080 msgwait syz-executor.1 10575 108725 69885 0 3 0x4000080 fsleep syz-executor.1 42292 172188 0 0 3 0x14200 bored sosplice 28826 415755 92527 0 3 0x82 piperd syz-executor.0 69885 17029 92527 0 3 0x82 nanosleep syz-executor.1 92527 165184 48224 0 3 0x82 thrsleep syz-fuzzer 92527 83304 48224 0 3 0x4000082 thrsleep syz-fuzzer 92527 43002 48224 0 3 0x4000082 thrsleep syz-fuzzer 92527 465193 48224 0 3 0x4000082 thrsleep syz-fuzzer 92527 435925 48224 0 3 0x4000082 thrsleep syz-fuzzer 92527 141449 48224 0 3 0x4000082 thrsleep syz-fuzzer 92527 12626 48224 0 3 0x4000082 thrsleep syz-fuzzer 92527 307810 48224 0 3 0x4000082 kqread syz-fuzzer 48224 201235 47856 0 3 0x10008a pause ksh 47856 251693 93797 0 3 0x92 select sshd 30196 328012 1 0 3 0x100083 ttyin getty 93797 357049 1 0 3 0x80 select sshd 39548 241136 31441 74 3 0x100092 bpf pflogd 31441 127068 1 0 3 0x80 netio pflogd 89356 443851 52037 73 3 0x100090 kqread syslogd 52037 162296 1 0 3 0x100082 netio syslogd 41566 249964 1 77 3 0x100090 poll dhclient 44923 331372 1 0 3 0x80 poll dhclient 99744 286091 0 0 3 0x14200 bored smr 1859 223739 0 0 3 0x14200 pgzero zerothread 28568 317540 0 0 3 0x14200 aiodoned aiodoned 72549 320431 0 0 3 0x14200 syncer update 70642 45601 0 0 3 0x14200 cleaner cleaner 39689 504959 0 0 3 0x14200 reaper reaper 63805 52298 0 0 3 0x14200 pgdaemon pagedaemon 71661 446976 0 0 3 0x14200 bored crynlk 7520 329910 0 0 3 0x14200 bored crypto 14200 13060 0 0 3 0x40014200 acpi0 acpi0 13880 230361 0 0 7 0x40014200 idle1 26498 456140 0 0 3 0x14200 bored softnet 12774 374028 0 0 3 0x14200 bored systqmp 65700 260308 0 0 3 0x14200 bored systq 42150 96612 0 0 3 0x40014200 bored softclock * 4699 250233 0 0 7 0x40014200 idle0 1 121833 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 4699 (idle0) thread 0xffff800020d898b0 (250233) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8293cf68) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 #2 Xintr_ioapic_edge19_untramp+0x19f #3 acpicpu_idle+0x331 sys/dev/acpi/acpicpu.c:1187 #4 sched_idle+0x3f7 sys/kern/kern_sched.c:178 #5 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9492 6413K 7310K 78643K 11758 0 pcb 13 8K 8K 78643K 163 0 rtable 129 10K 11K 78643K 376 0 ifaddr 73 16K 16K 78643K 118 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 47 0 ioctlops 0 0K 4K 78643K 1532 0 iov 0 0K 8K 78643K 152 0 mount 1 1K 1K 78643K 1 0 vnodes 1230 77K 78K 78643K 1513 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 4 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 55 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 370 0 sigio 0 0K 0K 78643K 10 0 proc 61 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 25 0 in_multi 46 2K 2K 78643K 97 0 ether_multi 1 0K 0K 78643K 4 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 1K 78643K 241 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 169 62K 62K 78643K 2194 0 UVM aobj 14 2K 2K 78643K 14 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 56 0 NDP 9 0K 0K 78643K 25 0 temp 111 3869K 3933K 78643K 3563 0 kqueue 3 4K 10K 78643K 19 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 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 88 27 0 25 1 0 1 1 0 8 0 rtentry 112 68 0 27 2 0 2 2 0 8 0 unpcb 120 239 0 229 1 0 1 1 0 8 0 syncache 272 7 0 7 2 2 0 1 0 8 0 tcpqe 32 313 0 313 2 2 0 1 0 8 0 tcpcb 592 106 0 100 3 1 2 2 0 8 0 inpcb 296 470 0 463 4 2 2 2 0 8 1 nd6 48 19 0 12 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pffrag 232 3 0 3 2 2 0 1 0 482 0 pffrnode 88 3 0 3 2 2 0 1 0 8 0 pffrent 40 95 0 95 3 2 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 pfrktable 1344 45 0 32 2 0 2 2 0 8 0 pftag 88 8 0 6 2 1 1 1 0 8 0 pfstitem 24 35 0 13 1 0 1 1 0 8 0 pfstkey 112 36 0 14 1 0 1 1 0 8 0 pfstate 328 36 0 14 3 0 3 3 0 8 0 pfrule 1360 33 0 22 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 428 0 224 19 2 17 17 0 8 2 art_table 32 429 0 224 3 0 3 3 0 8 0 art_node 16 67 0 30 1 0 1 1 0 8 0 sysvmsgpl 40 27 0 21 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 43 0 33 1 0 1 1 0 8 0 shmpl 112 11 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1854 0 451 90 2 88 89 0 8 0 ffsino 272 1854 0 451 94 0 94 94 0 8 0 nchpl 144 2636 0 1028 60 0 60 60 0 8 0 uvmvnodes 72 2157 0 0 40 0 40 40 0 8 0 vnodes 208 2157 0 0 114 0 114 114 0 8 0 namei 1024 7188 0 7188 3 2 1 1 0 8 1 percpumem 16 34 0 2 1 0 1 1 0 8 0 vcpupl 1984 6 0 0 1 0 1 1 0 8 0 vmpool 560 8 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 15 0 7 1 0 1 1 0 8 0 scxspl 200 7797 0 7797 10 9 1 7 0 8 1 plimitpl 152 31 0 23 1 0 1 1 0 8 0 sigapl 424 586 0 554 4 0 4 4 0 8 0 futexpl 56 5038 0 5036 3 2 1 1 0 8 0 knotepl 112 80 0 60 1 0 1 1 0 8 0 kqueuepl 152 53 0 51 1 0 1 1 0 8 0 pipepl 304 125 0 114 3 1 2 2 0 8 1 fdescpl 496 570 0 554 3 0 3 3 0 8 0 filepl 152 3314 0 3209 6 1 5 5 0 8 0 lockfpl 104 50 0 49 1 0 1 1 0 8 0 lockfspl 48 20 0 19 1 0 1 1 0 8 0 sessionpl 120 18 0 7 1 0 1 1 0 8 0 pgrppl 48 24 0 13 1 0 1 1 0 8 0 ucredpl 96 278 0 269 1 0 1 1 0 8 0 zombiepl 144 554 0 554 2 1 1 1 0 8 1 processpl 1008 586 0 554 5 0 5 5 0 8 0 procpl 632 1366 0 1324 4 0 4 4 0 8 0 srpgc 72 2 0 2 1 1 0 1 0 8 0 sockpl 400 742 0 723 6 3 3 4 0 8 1 mcl64k 65536 9 0 0 2 0 2 2 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 10 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 7 0 0 1 0 1 1 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 166 0 0 20 0 20 20 0 8 0 mtagpl 96 168 0 0 5 0 5 5 0 8 0 mbufpl 256 455 0 0 27 0 27 27 0 8 0 bufpl 280 4007 0 127 278 0 278 278 0 8 0 anonpl 16 67200 0 48733 78 2 76 76 0 124 0 amapchunkpl 152 3162 0 2841 15 2 13 15 0 158 0 amappl16 192 2268 0 1431 43 0 43 43 0 8 0 amappl15 184 170 0 168 1 0 1 1 0 8 0 amappl14 176 6 0 3 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 21 0 19 1 0 1 1 0 8 0 amappl11 152 55 0 40 1 0 1 1 0 8 0 amappl10 144 182 0 177 1 0 1 1 0 8 0 amappl9 136 534 0 531 1 0 1 1 0 8 0 amappl8 128 355 0 313 2 0 2 2 0 8 0 amappl7 120 285 0 271 1 0 1 1 0 8 0 amappl6 112 33 0 26 1 0 1 1 0 8 0 amappl5 104 473 0 458 1 0 1 1 0 8 0 amappl4 96 493 0 461 1 0 1 1 0 8 0 amappl3 88 144 0 135 1 0 1 1 0 8 0 amappl2 80 3625 0 3554 2 0 2 2 0 8 0 amappl1 72 25933 0 25472 23 13 10 18 0 8 0 amappl 80 1665 0 1581 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 13 0 0 1 0 1 1 0 8 0 uaddrrnd 24 578 0 556 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 578 0 556 1 0 1 1 0 8 0 vmmpekpl 168 8348 0 8313 2 0 2 2 0 8 0 vmmpepl 168 79221 0 77143 117 20 97 110 0 357 0 vmsppl 368 577 0 556 3 0 3 3 0 8 0 pdppl 4096 1163 0 1118 7 0 7 7 0 8 1 pvpl 32 224279 0 202693 191 9 182 182 0 265 3 pmappl 232 577 0 556 4 2 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 284 0 14 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(ffff800020d91130,ffff800000256b80) at intr_handler+0x8f sys/arch/amd64/amd64/intr.c:536 Xintr_ioapic_edge19_untramp() at Xintr_ioapic_edge19_untramp+0x19f acpicpu_idle() at acpicpu_idle+0x331 sys/dev/acpi/acpicpu.c:1187 sched_idle(ffffffff82738ff0) at sched_idle+0x3f7 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -6 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