uvm_fault(0xffffffff8291b868, 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(0xffffffff8291b868, 0xa, 0, 1) -> e vio_rxeof(ffff80000017c000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018 end trace frame: 0xffff800020d911d0, 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(ffff800020d91230,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(ffffffff8275aff0) 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 0xffff800020d91170 rbx 0xffff80000017c000 rdx 0 rcx 0xffffffff8275aff0 cpu_info_full_primary+0x1ff0 rax 0xffffffff8275aff0 cpu_info_full_primary+0x1ff0 r8 0x2 r9 0 r10 0x2ce39cfaa2bfaf09 r11 0x204529997b4de2d3 r12 0xffff800000024c00 r13 0xc r14 0xfffffd806c738900 r15 0 rip 0xffffffff8113c191 vio_rxeof+0x191 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020d910e0 ss 0x10 vio_rxeof+0x191: movzwl 0xa(%r15),%eax ddb{0}> show proc PROC (idle0) pid=231436 stat=onproc flags process=14000 proc=40000200 pri=0, usrpri=50, nice=20 forw=0x2d1b914f069f8a2f, list=0xffff800020d89d40,0xffff800020d89390 process=0xffff800020d8b360 user=0xffff800020d8c000, vmspace=0xffffffff8291b868 estcpu=0, cpticks=7297, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 4994 463250 58311 0 3 0x80 nanosleep syz-executor.0 4994 61487 58311 0 3 0x4000080 ttyin syz-executor.0 4994 40263 58311 0 3 0x4000080 fsleep syz-executor.0 77674 4313 0 0 3 0x14200 bored sosplice 83890 13684 15978 0 3 0x2 biowait syz-executor.1 58311 141899 15978 0 3 0x82 nanosleep syz-executor.0 15978 86091 47957 0 3 0x82 thrsleep syz-fuzzer 15978 39607 47957 0 3 0x4000082 nanosleep syz-fuzzer 15978 87281 47957 0 3 0x4000082 thrsleep syz-fuzzer 15978 158259 47957 0 3 0x4000082 thrsleep syz-fuzzer 15978 285989 47957 0 3 0x4000082 thrsleep syz-fuzzer 15978 124124 47957 0 3 0x4000082 thrsleep syz-fuzzer 15978 254949 47957 0 3 0x4000082 thrsleep syz-fuzzer 15978 286785 47957 0 3 0x4000082 thrsleep syz-fuzzer 15978 37479 47957 0 3 0x4000082 thrsleep syz-fuzzer 15978 475295 47957 0 3 0x4000082 kqread syz-fuzzer 15978 375512 47957 0 3 0x4000082 thrsleep syz-fuzzer 47957 194938 83591 0 3 0x10008a pause ksh 83591 112153 84229 0 3 0x92 select sshd 76951 58030 1 0 3 0x100083 ttyin getty 84229 345241 1 0 3 0x80 select sshd 96164 44417 57583 74 3 0x100092 bpf pflogd 57583 424592 1 0 3 0x80 netio pflogd 2681 273360 72084 73 3 0x100090 kqread syslogd 72084 96202 1 0 3 0x100082 netio syslogd 15285 419732 1 77 3 0x100090 poll dhclient 58360 317270 1 0 3 0x80 poll dhclient 24996 464909 0 0 3 0x14200 bored smr 85409 76255 0 0 3 0x14200 pgzero zerothread 69105 483243 0 0 3 0x14200 aiodoned aiodoned 38733 506442 0 0 3 0x14200 syncer update 97167 92730 0 0 3 0x14200 cleaner cleaner 41533 69815 0 0 3 0x14200 reaper reaper 73847 335606 0 0 3 0x14200 pgdaemon pagedaemon 99604 233651 0 0 3 0x14200 bored crynlk 78839 347364 0 0 3 0x14200 bored crypto 53979 94241 0 0 3 0x40014200 acpi0 acpi0 18114 157882 0 0 7 0x40014200 idle1 31061 347328 0 0 3 0x14200 bored softnet 53360 479604 0 0 3 0x14200 bored systqmp 23879 187178 0 0 3 0x14200 bored systq 8169 275504 0 0 3 0x40014200 bored softclock *67756 231436 0 0 7 0x40014200 idle0 1 75889 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 83890 (syz-executor.1) thread 0xffff800020e38ae8 (13684) Process 67756 (idle0) thread 0xffff800020d89860 (231436) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9501 6418K 6658K 78643K 10886 0 pcb 13 8K 8K 78643K 54 0 rtable 96 4K 7K 78643K 349 0 ifaddr 59 12K 12K 78643K 111 0 counters 43 33K 34K 78643K 53 0 ioctlops 0 0K 4K 78643K 1498 0 iov 0 0K 12K 78643K 31 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1338 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 0K 0K 78643K 84 0 dirhash 9 1K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 300 0 proc 61 63K 95K 78643K 440 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 149 0 in_multi 24 1K 2K 78643K 91 0 ether_multi 1 0K 0K 78643K 5 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 67 307K 307K 78643K 67 0 exec 0 0K 1K 78643K 225 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 127 39K 48K 78643K 1968 0 UVM aobj 8 4K 4K 78643K 9 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 34 0 NDP 10 0K 0K 78643K 27 0 temp 110 3864K 3928K 78643K 4034 0 kqueue 3 4K 10K 78643K 10 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 7 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 40 0 38 1 0 1 1 0 8 0 rtentry 112 67 0 32 2 0 2 2 0 8 0 unpcb 120 117 0 107 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 122 0 122 1 1 0 1 0 8 0 tcpcb 544 120 0 116 1 0 1 1 0 8 0 inpcb 296 545 0 531 3 1 2 2 0 8 0 nd6 48 19 0 16 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 ppxss 1136 1 0 1 1 1 0 1 0 8 0 pffrag 232 5 0 3 1 0 1 1 0 482 0 pffrnode 88 5 0 3 1 0 1 1 0 8 0 pffrent 40 54 0 52 1 0 1 1 0 8 0 pfosfp 40 847 0 423 5 0 5 5 0 8 0 pfosfpen 112 1430 0 714 21 0 21 21 0 8 0 pfrktable 1344 16 0 16 2 1 1 1 0 8 1 pfstitem 24 39 0 22 1 0 1 1 0 8 0 pfstkey 112 39 0 22 1 0 1 1 0 8 0 pfstate 328 39 0 22 4 1 3 3 0 8 0 pfrule 1360 25 0 19 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 413 0 221 14 1 13 14 0 8 0 art_table 32 414 0 221 2 0 2 2 0 8 0 art_node 16 66 0 33 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 2 1 0 1 1 0 8 0 semapl 112 82 0 72 1 0 1 1 0 8 0 shmpl 112 6 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 10 3 1 2 3 0 8 0 dino2pl 256 1807 0 403 89 0 89 89 0 8 0 ffsino 272 1807 0 403 95 0 95 95 0 8 0 nchpl 144 2388 0 777 60 0 60 60 0 8 0 uvmvnodes 72 1915 0 0 35 0 35 35 0 8 0 vnodes 208 1915 0 0 101 0 101 101 0 8 0 namei 1024 7188 0 7188 3 2 1 1 0 8 1 percpumem 16 37 0 5 1 0 1 1 0 8 0 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 560 1 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 5 0 5 2 1 1 1 0 8 1 scxspl 192 7438 0 7437 13 12 1 7 0 8 0 plimitpl 152 37 0 29 1 0 1 1 0 8 0 sigapl 424 516 0 484 4 0 4 4 0 8 0 futexpl 56 4567 0 4566 3 2 1 1 0 8 0 knotepl 112 69 0 50 1 0 1 1 0 8 0 kqueuepl 144 39 0 36 1 0 1 1 0 8 0 pipepl 304 111 0 101 4 2 2 2 0 8 1 fdescpl 496 500 0 484 3 0 3 3 0 8 0 filepl 152 3354 0 3248 5 0 5 5 0 8 0 lockfpl 104 92 0 91 1 0 1 1 0 8 0 lockfspl 48 26 0 25 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 96 843 0 834 1 0 1 1 0 8 0 zombiepl 144 484 0 484 1 0 1 1 0 8 1 processpl 992 516 0 484 5 0 5 5 0 8 0 procpl 624 1186 0 1142 4 0 4 4 0 8 0 srpgc 64 2 0 2 1 1 0 1 0 8 0 sosppl 128 2 0 2 1 1 0 1 0 8 0 sockpl 400 709 0 686 6 3 3 4 0 8 0 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 7 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 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 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 341 0 0 42 0 42 42 0 8 0 mtagpl 96 23 0 0 1 0 1 1 0 8 0 mbufpl 256 354 0 0 22 1 21 22 0 8 0 bufpl 280 4091 0 135 283 0 283 283 0 8 0 anonpl 16 71699 0 54676 93 21 72 84 0 124 0 amapchunkpl 152 3411 0 3260 25 18 7 20 0 158 0 amappl16 192 2536 0 1615 61 14 47 58 0 8 0 amappl15 184 2 0 1 1 0 1 1 0 8 0 amappl14 176 33 0 28 1 0 1 1 0 8 0 amappl13 168 162 0 157 1 0 1 1 0 8 0 amappl12 160 146 0 142 1 0 1 1 0 8 0 amappl11 152 59 0 44 1 0 1 1 0 8 0 amappl10 144 16 0 13 1 0 1 1 0 8 0 amappl9 136 514 0 512 1 0 1 1 0 8 0 amappl8 128 491 0 460 2 0 2 2 0 8 0 amappl7 120 116 0 105 1 0 1 1 0 8 0 amappl6 112 24 0 18 1 0 1 1 0 8 0 amappl5 104 282 0 266 1 0 1 1 0 8 0 amappl4 96 622 0 594 1 0 1 1 0 8 0 amappl3 88 246 0 238 1 0 1 1 0 8 0 amappl2 80 3008 0 2935 2 0 2 2 0 8 0 amappl1 72 24211 0 23756 23 13 10 18 0 8 0 amappl 80 1443 0 1396 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 8 0 1 1 0 1 1 0 8 0 uaddrrnd 24 501 0 484 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 501 0 484 1 0 1 1 0 8 0 vmmpekpl 168 8051 0 8007 3 0 3 3 0 8 0 vmmpepl 168 71739 0 69630 139 40 99 115 0 357 2 vmsppl 368 500 0 484 2 0 2 2 0 8 0 pdppl 4096 1009 0 969 6 0 6 6 0 8 0 pvpl 32 217094 0 196868 202 30 172 200 0 265 6 pmappl 232 500 0 484 4 2 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 295 0 11 9 0 9 9 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(ffff800020d91230,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(ffffffff8275aff0) 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