uvm_fault(0xffffffff82853498, 0xa, 0, 1) -> e kernel: page fault trap, code=0 Stopped at vio_rxeof+0x191: movzwl 0xa(%r15),%eax ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xffffffff82853498, 0xa, 0, 1) -> e vio_rxeof(ffff80000017a000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018 end trace frame: 0xffff80001d6783f0, count: 0 ddb> trace vio_rxeof(ffff80000017a000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018 vio_rx_intr(ffff80000017a050) at vio_rx_intr+0x4d sys/dev/pv/if_vio.c:1056 virtio_check_vqs(ffff80000002ea00) at virtio_check_vqs+0x150 sys/dev/pv/virtio.c:228 intr_handler(ffff80001d6784a0,ffff800000655380) at intr_handler+0x4d sys/arch/amd64/amd64/intr.c:537 Xintr_ioapic_edge19_untramp() at Xintr_ioapic_edge19_untramp+0x19f tcp_output(ffff800000ac3100) at tcp_output+0x2294 sys/netinet/tcp_output.c:984 tcp_input(ffff80001d678a48,ffff80001d678a54,6,2) at tcp_input+0x337c sys/netinet/tcp_input.c:2024 ip_deliver(ffff80001d678a48,ffff80001d678a54,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668 ip_ours(ffff80001d678a48,ffff80001d678a54,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563 ip_input_if(ffff80001d678a48,ffff80001d678a54,4,0,ffff80000017a2a8) at ip_input_if+0x571 ipv4_input(ffff80000017a2a8,fffffd805930c500) at ipv4_input+0x48 sys/netinet/ip_input.c:215 if_input_process(ffff80000017a2a8,ffff80001d678ae8) at if_input_process+0xda sys/net/if.c:832 ifiq_process(ffff80000017a668) at ifiq_process+0x80 sys/net/ifq.c:768 taskq_thread(ffff80000002b080) at taskq_thread+0x92 sys/kern/kern_task.c:438 end trace frame: 0x0, count: -14 ddb> show registers rdi 0xc rsi 0xc rbp 0xffff80001d678390 rbx 0xffff80000017a000 rdx 0 rcx 0xffff8000001ab000 rax 0 r8 0x2 r9 0 r10 0 r11 0xf43d39a37aff7ac r12 0xffff80000002ea00 r13 0xc r14 0xfffffd805e0a0f00 r15 0 rip 0xffffffff81b68bf1 vio_rxeof+0x191 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001d678300 ss 0x10 vio_rxeof+0x191: movzwl 0xa(%r15),%eax ddb> show proc PROC (softnet) pid=306567 stat=onproc flags process=14000 proc=200 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d652110,0xffff80001d6519d0 process=0xffff8000ffffe740 user=0xffff80001d673000, vmspace=0xffffffff82853498 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 50465 518350 102 0 2 0 syz-executor.1 95714 109721 0 0 3 0x14200 acct acct 86187 192703 0 0 3 0x14200 bored sosplice 75044 438036 75715 0 3 0x82 piperd syz-executor.0 102 304635 75715 0 2 0x2 syz-executor.1 75715 122849 56200 0 2 0x2 syz-fuzzer 75715 453196 56200 0 3 0x4000082 nanosleep syz-fuzzer 75715 317408 56200 0 3 0x4000082 thrsleep syz-fuzzer 75715 201400 56200 0 3 0x4000082 thrsleep syz-fuzzer 75715 178077 56200 0 3 0x4000082 thrsleep syz-fuzzer 75715 59833 56200 0 3 0x4000082 thrsleep syz-fuzzer 75715 200794 56200 0 3 0x4000082 thrsleep syz-fuzzer 56200 116828 83025 0 3 0x10008a pause ksh 83025 119468 85298 0 3 0x92 select sshd 54222 318508 1 0 3 0x100083 ttyin getty 85298 431797 1 0 3 0x80 select sshd 66885 490500 84260 73 3 0x100090 kqread syslogd 84260 217901 1 0 3 0x100082 netio syslogd 27237 73106 1 77 3 0x100090 poll dhclient 30680 127501 1 0 3 0x80 poll dhclient 54280 79216 0 0 3 0x14200 bored smr 86885 248815 0 0 2 0x14200 zerothread 67447 69403 0 0 3 0x14200 aiodoned aiodoned 18477 359970 0 0 3 0x14200 syncer update 41218 204887 0 0 3 0x14200 cleaner cleaner 4041 437971 0 0 3 0x14200 reaper reaper 66067 277047 0 0 3 0x14200 pgdaemon pagedaemon 29331 190535 0 0 3 0x14200 bored crynlk 54581 227552 0 0 3 0x14200 bored crypto 57652 425879 0 0 3 0x40014200 acpi0 acpi0 *27508 306567 0 0 7 0x14200 softnet 7538 146405 0 0 3 0x14200 bored systqmp 11078 288122 0 0 3 0x14200 bored systq 42796 144324 0 0 3 0x40014200 bored softclock 58524 211207 0 0 3 0x40014200 idle0 1 273828 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9500 6343K 6652K 78643K 10862 0 pcb 13 8K 8K 78643K 65 0 rtable 97 13K 13K 78643K 383 0 ifaddr 87 18K 18K 78643K 158 0 sysctl 2 0K 0K 78643K 2 0 counters 21 16K 16K 78643K 28 0 ioctlops 0 0K 4K 78643K 69 0 iov 0 0K 16K 78643K 39 0 mount 1 1K 1K 78643K 1 0 vnodes 1221 77K 77K 78643K 1307 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 0K 0K 78643K 2 0 sem 11 1K 1K 78643K 17 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 5 13K 25K 78643K 273 0 sigio 0 0K 0K 78643K 2 0 proc 48 38K 63K 78643K 371 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 33 0 in_multi 73 3K 3K 78643K 89 0 ether_multi 1 0K 0K 78643K 5 0 mrt 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 211 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 119 39K 40K 78643K 1482 0 UVM aobj 9 2K 2K 78643K 11 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 32 0 NDP 12 0K 0K 78643K 23 0 temp 103 3869K 3933K 78643K 9644 0 kqueue 3 4K 9K 78643K 7 0 SYN cache 2 16K 16K 78643K 2 0 ddb> 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 rtpcb 80 33 0 31 1 0 1 1 0 8 0 rtentry 112 46 0 13 2 0 2 2 0 8 0 unpcb 120 97 0 89 1 0 1 1 0 8 0 syncache 264 10 0 10 4 4 0 1 0 8 0 tcpqe 32 473 0 473 3 3 0 1 0 8 0 tcpcb 544 124 0 120 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 2 0 2 1 1 0 1 0 8 0 inpcb 296 624 0 617 4 2 2 2 0 8 1 nd6 48 6 0 0 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 pfrktable 1344 51 0 47 2 1 1 1 0 8 0 pftag 88 8 0 6 2 1 1 1 0 8 0 pfstkey 112 2 0 2 1 0 1 1 0 8 1 pfstate 328 1 0 1 1 0 1 1 0 8 1 pfrule 1360 14 0 8 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 219 0 65 13 1 12 12 0 8 1 art_table 32 220 0 65 2 0 2 2 0 8 0 art_node 16 45 0 18 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 1 0 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 9 0 0 1 0 1 1 0 8 0 shmpl 112 8 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1736 0 337 88 0 88 88 0 8 0 ffsino 240 1736 0 337 83 0 83 83 0 8 0 nchpl 144 2312 0 711 60 0 60 60 0 8 0 uvmvnodes 72 1835 0 0 34 0 34 34 0 8 0 vnodes 208 1835 0 0 97 0 97 97 0 8 0 namei 1024 5963 0 5963 2 1 1 1 0 8 1 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 528 2 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 16 0 14 3 2 1 1 0 8 0 scxspl 192 7098 0 7098 1 0 1 1 0 8 1 plimitpl 152 24 0 17 1 0 1 1 0 8 0 sigapl 424 461 0 431 4 0 4 4 0 8 0 futexpl 56 5451 0 5451 1 0 1 1 0 8 1 knotepl 112 65 0 46 1 0 1 1 0 8 0 kqueuepl 144 18 0 14 1 0 1 1 0 8 0 pipepl 272 111 0 101 2 1 1 2 0 8 0 fdescpl 432 445 0 431 2 0 2 2 0 8 0 filepl 120 2603 0 2508 4 0 4 4 0 8 1 lockfpl 104 68 0 67 1 0 1 1 0 8 0 lockfspl 48 23 0 22 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 17 0 7 1 0 1 1 0 8 0 ucredpl 96 229 0 222 1 0 1 1 0 8 0 zombiepl 144 431 0 431 2 1 1 1 0 8 1 processpl 928 461 0 431 4 0 4 4 0 8 0 procpl 624 786 0 750 7 3 4 4 0 8 0 sosppl 128 8 0 8 3 2 1 1 0 8 1 sockpl 400 756 0 739 3 0 3 3 0 8 1 mcl64k 65536 22 0 22 5 4 1 1 0 8 1 mcl12k 12288 8 0 8 5 5 0 1 0 8 0 mcl9k 9216 3 0 3 2 2 0 1 0 8 0 mcl8k 8192 7 0 7 3 2 1 1 0 8 1 mcl4k 4096 33 0 32 7 6 1 1 0 8 0 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 94015 0 93956 22 14 8 19 0 8 0 mtagpl 96 18 0 2 2 1 1 1 0 8 0 mbufpl 256 149946 0 149815 13 3 10 12 0 8 0 bufpl 280 4058 0 126 281 0 281 281 0 8 0 anonpl 16 60410 0 43303 81 11 70 79 0 107 0 amapchunkpl 152 2031 0 1899 11 5 6 11 0 158 0 amappl16 192 1907 0 961 51 3 48 49 0 8 0 amappl15 184 27 0 24 1 0 1 1 0 8 0 amappl14 176 240 0 232 1 0 1 1 0 8 0 amappl13 168 26 0 23 1 0 1 1 0 8 0 amappl12 160 6 0 3 1 0 1 1 0 8 0 amappl11 152 257 0 246 1 0 1 1 0 8 0 amappl10 144 39 0 32 1 0 1 1 0 8 0 amappl9 136 30 0 29 1 0 1 1 0 8 0 amappl8 128 325 0 281 2 0 2 2 0 8 0 amappl7 120 109 0 97 1 0 1 1 0 8 0 amappl6 112 237 0 232 1 0 1 1 0 8 0 amappl5 104 865 0 854 1 0 1 1 0 8 0 amappl4 96 634 0 606 1 0 1 1 0 8 0 amappl3 88 109 0 103 1 0 1 1 0 8 0 amappl2 80 2758 0 2698 2 0 2 2 0 8 0 amappl1 72 19249 0 18852 22 13 9 17 0 8 0 amappl 80 1010 0 969 2 1 1 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 10 0 2 1 0 1 1 0 8 0 uaddrrnd 24 447 0 431 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 447 0 431 1 0 1 1 0 8 0 vmmpekpl 168 6921 0 6894 3 1 2 2 0 8 0 vmmpepl 168 61898 0 59878 119 28 91 108 0 357 1 vmsppl 272 446 0 431 2 0 2 2 0 8 0 pdppl 4096 900 0 864 6 1 5 6 0 8 0 pvpl 32 184333 0 164315 190 25 165 186 0 265 0 pmappl 200 446 0 431 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 264 0 38 7 0 7 7 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace vio_rxeof(ffff80000017a000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018 vio_rx_intr(ffff80000017a050) at vio_rx_intr+0x4d sys/dev/pv/if_vio.c:1056 virtio_check_vqs(ffff80000002ea00) at virtio_check_vqs+0x150 sys/dev/pv/virtio.c:228 intr_handler(ffff80001d6784a0,ffff800000655380) at intr_handler+0x4d sys/arch/amd64/amd64/intr.c:537 Xintr_ioapic_edge19_untramp() at Xintr_ioapic_edge19_untramp+0x19f tcp_output(ffff800000ac3100) at tcp_output+0x2294 sys/netinet/tcp_output.c:984 tcp_input(ffff80001d678a48,ffff80001d678a54,6,2) at tcp_input+0x337c sys/netinet/tcp_input.c:2024 ip_deliver(ffff80001d678a48,ffff80001d678a54,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668 ip_ours(ffff80001d678a48,ffff80001d678a54,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563 ip_input_if(ffff80001d678a48,ffff80001d678a54,4,0,ffff80000017a2a8) at ip_input_if+0x571 ipv4_input(ffff80000017a2a8,fffffd805930c500) at ipv4_input+0x48 sys/netinet/ip_input.c:215 if_input_process(ffff80000017a2a8,ffff80001d678ae8) at if_input_process+0xda sys/net/if.c:832 ifiq_process(ffff80000017a668) at ifiq_process+0x80 sys/net/ifq.c:768 taskq_thread(ffff80000002b080) at taskq_thread+0x92 sys/kern/kern_task.c:438 end trace frame: 0x0, count: -14 ddb> machine ddbcpu 1 No such command ddb> trace vio_rxeof(ffff80000017a000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018 vio_rx_intr(ffff80000017a050) at vio_rx_intr+0x4d sys/dev/pv/if_vio.c:1056 virtio_check_vqs(ffff80000002ea00) at virtio_check_vqs+0x150 sys/dev/pv/virtio.c:228 intr_handler(ffff80001d6784a0,ffff800000655380) at intr_handler+0x4d sys/arch/amd64/amd64/intr.c:537 Xintr_ioapic_edge19_untramp() at Xintr_ioapic_edge19_untramp+0x19f tcp_output(ffff800000ac3100) at tcp_output+0x2294 sys/netinet/tcp_output.c:984 tcp_input(ffff80001d678a48,ffff80001d678a54,6,2) at tcp_input+0x337c sys/netinet/tcp_input.c:2024 ip_deliver(ffff80001d678a48,ffff80001d678a54,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668 ip_ours(ffff80001d678a48,ffff80001d678a54,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563 ip_input_if(ffff80001d678a48,ffff80001d678a54,4,0,ffff80000017a2a8) at ip_input_if+0x571 ipv4_input(ffff80000017a2a8,fffffd805930c500) at ipv4_input+0x48 sys/netinet/ip_input.c:215 if_input_process(ffff80000017a2a8,ffff80001d678ae8) at if_input_process+0xda sys/net/if.c:832 ifiq_process(ffff80000017a668) at ifiq_process+0x80 sys/net/ifq.c:768 taskq_thread(ffff80000002b080) at taskq_thread+0x92 sys/kern/kern_task.c:438 end trace frame: 0x0, count: -14