uvm_fault(0xffffffff82633f78, 0xc, 0, 1) -> e kernel: page fault trap, code=0 Stopped at vio_start+0x192: movzwl 0xc(%rax),%esi ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff82633f78, 0xc, 0, 1) -> e vio_start(ffff80000017b2a8) at vio_start+0x192 sys/dev/pv/if_vio.c:758 end trace frame: 0xffff800020a4fbf0, count: 0 ddb{0}> trace vio_start(ffff80000017b2a8) at vio_start+0x192 sys/dev/pv/if_vio.c:758 if_qstart_compat(ffff80000017b520) at if_qstart_compat+0x36 sys/net/if.c:684 ifq_serialize(ffff80000017b520,ffff80000017b630) at ifq_serialize+0x173 sys/net/ifq.c:108 taskq_thread(ffff80000002b080) at taskq_thread+0x9c sys/kern/kern_task.c:369 end trace frame: 0x0, count: -4 ddb{0}> show registers rdi 0 rsi 0x2 rbp 0xffff800020a4fbc0 rbx 0x2 rdx 0xc rcx 0 rax 0 r8 0xffffffff813f30da vio_start+0x13a r9 0x5 r10 0xe79ee0ab465cc64b r11 0x11ce0cab27b95358 r12 0x2 r13 0x2a r14 0xffff80000017b000 r15 0xfffffd806348a100 rip 0xffffffff813f3132 vio_start+0x192 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020a4fb20 ss 0x10 vio_start+0x192: movzwl 0xc(%rax),%esi ddb{0}> show proc PROC (softnet) pid=97494 stat=onproc flags process=14000 proc=200 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020a28000,0xffff800020a284f0 process=0xffff800020a2a000 user=0xffff800020a4a000, vmspace=0xffffffff82633f78 estcpu=0, cpticks=1, pctcpu=0.49 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 26994 269462 88722 0 7 0 syz-executor.1 26994 267218 88722 0 2 0x4000080 syz-executor.1 26994 402938 88722 0 3 0x4000080 fsleep syz-executor.1 44133 55382 35767 0 2 0 syz-executor.0 44133 57736 35767 0 3 0x4000080 fsleep syz-executor.0 44133 81301 35767 0 3 0x4000080 fsleep syz-executor.0 72267 27890 0 0 3 0x14200 bored sosplice 88722 162106 75569 0 3 0x82 nanosleep syz-executor.1 35767 259566 75569 0 3 0x82 nanosleep syz-executor.0 75569 365851 17970 0 3 0x82 thrsleep syz-fuzzer 75569 319931 17970 0 3 0x4000082 nanosleep syz-fuzzer 75569 10167 17970 0 3 0x4000082 thrsleep syz-fuzzer 75569 41977 17970 0 3 0x4000082 kqread syz-fuzzer 75569 231176 17970 0 3 0x4000082 thrsleep syz-fuzzer 75569 506390 17970 0 3 0x4000082 thrsleep syz-fuzzer 75569 221889 17970 0 3 0x4000082 thrsleep syz-fuzzer 75569 493406 17970 0 3 0x4000082 thrsleep syz-fuzzer 75569 208768 17970 0 3 0x4000082 thrsleep syz-fuzzer 75569 118831 17970 0 3 0x4000082 thrsleep syz-fuzzer 17970 392282 67214 0 3 0x10008a pause ksh 67214 87781 85603 0 3 0x92 select sshd 63232 36763 1 0 3 0x100083 ttyin getty 85603 485895 1 0 3 0x80 select sshd 43525 280023 54885 74 3 0x100092 bpf pflogd 54885 133356 1 0 3 0x80 netio pflogd 72551 140503 67763 73 3 0x100090 kqread syslogd 67763 338445 1 0 3 0x100082 netio syslogd 20719 378056 1 77 3 0x100090 poll dhclient 67936 103179 1 0 3 0x80 poll dhclient 15969 363265 0 0 2 0x14200 zerothread 93053 489193 0 0 3 0x14200 aiodoned aiodoned 92484 235607 0 0 3 0x14200 syncer update 11853 186674 0 0 3 0x14200 cleaner cleaner 28992 66120 0 0 3 0x14200 reaper reaper 42670 205432 0 0 3 0x14200 pgdaemon pagedaemon 53135 10297 0 0 3 0x14200 bored crynlk 56667 242609 0 0 3 0x14200 bored crypto 89126 200356 0 0 3 0x40014200 acpi0 acpi0 84749 423764 0 0 3 0x40014200 idle1 *10569 97494 0 0 7 0x14200 softnet 94028 382306 0 0 3 0x14200 bored systqmp 93798 139154 0 0 3 0x14200 bored systq 50397 280557 0 0 3 0x40014200 bored softclock 61388 98431 0 0 3 0x40014200 idle0 7764 321485 0 0 3 0x14200 bored smr 1 214328 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &ifq->ifq_mtx r = 0 (0xffff80000017b548) #0 witness_lock+0x52e sys/kern/subr_witness.c:1164 #1 mtx_enter_try+0x102 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 ifq_deq_begin+0x31 sys/net/ifq.c:345 #4 vio_start+0xf6 sys/dev/pv/if_vio.c:735 #5 if_qstart_compat+0x36 sys/net/if.c:684 #6 ifq_serialize+0x173 sys/net/ifq.c:108 #7 taskq_thread+0x9c sys/kern/kern_task.c:369 #8 proc_trampoline+0x1c Process 10569 (softnet) thread 0xffff800020a28270 (97494) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff826518c0) #0 witness_lock+0x52e sys/kern/subr_witness.c:1164 #1 if_qstart_compat+0x1a sys/net/if.c:682 #2 ifq_serialize+0x173 sys/net/ifq.c:108 #3 taskq_thread+0x9c sys/kern/kern_task.c:369 #4 proc_trampoline+0x1c shared rwlock softnet r = 0 (0xffff80000002b0e0) #0 witness_lock+0x52e sys/kern/subr_witness.c:1164 #1 taskq_thread+0x8f sys/kern/kern_task.c:368 #2 proc_trampoline+0x1c exclusive mutex &ifq->ifq_mtx r = 0 (0xffff80000017b548) #0 witness_lock+0x52e sys/kern/subr_witness.c:1164 #1 mtx_enter_try+0x102 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 ifq_deq_begin+0x31 sys/net/ifq.c:345 #4 vio_start+0xf6 sys/dev/pv/if_vio.c:735 #5 if_qstart_compat+0x36 sys/net/if.c:684 #6 ifq_serialize+0x173 sys/net/ifq.c:108 #7 taskq_thread+0x9c sys/kern/kern_task.c:369 #8 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9510 6414K 7456K 78643K 11208 0 pcb 13 8K 8K 78643K 80 0 rtable 104 3K 4K 78643K 280 0 ifaddr 68 13K 14K 78643K 102 0 counters 43 33K 34K 78643K 53 0 ioctlops 0 0K 4K 78643K 1477 0 iov 0 0K 16K 78643K 52 0 mount 1 1K 1K 78643K 1 0 vnodes 1227 77K 77K 78643K 1395 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 96 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 196K 290K 78643K 12766 0 file desc 6 17K 25K 78643K 242 0 sigio 0 0K 0K 78643K 17 0 proc 61 63K 95K 78643K 455 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 22 0 in_multi 43 2K 3K 78643K 85 0 ether_multi 1 0K 0K 78643K 16 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 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 237 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 24K 24K 78643K 1770 0 UVM aobj 16 2K 2K 78643K 16 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 67 0 NDP 11 0K 0K 78643K 21 0 temp 103 3012K 3080K 78643K 11847 0 kqueue 3 4K 8K 78643K 18 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 1 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 37 0 35 1 0 1 1 0 8 0 rtentry 112 58 0 16 2 0 2 2 0 8 0 unpcb 120 207 0 197 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 122 0 118 1 0 1 1 0 8 0 inpcb 280 404 0 396 3 1 2 2 0 8 1 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 10 0 5 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 ppxss 1128 1 0 1 1 0 1 1 0 8 1 pffrag 232 6 0 6 1 0 1 1 0 482 1 pffrnode 88 6 0 6 1 0 1 1 0 8 1 pffrent 40 270 0 270 1 0 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 47 0 5 1 0 1 1 0 8 0 pfstkey 112 47 0 5 2 0 2 2 0 8 0 pfstate 328 47 0 5 4 0 4 4 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 256 238 0 46 14 0 14 14 0 8 0 art_table 32 239 0 46 2 0 2 2 0 8 0 art_node 16 57 0 18 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 2 1 0 1 1 0 8 0 semupl 112 8 0 8 1 1 0 1 0 8 0 semapl 112 94 0 84 1 0 1 1 0 8 0 shmpl 112 14 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1743 0 335 46 0 46 46 0 8 0 ffsino 272 1743 0 335 95 0 95 95 0 8 0 nchpl 144 2413 0 797 61 0 61 61 0 8 0 uvmvnodes 72 1921 0 0 35 0 35 35 0 8 0 vnodes 208 1921 0 0 102 0 102 102 0 8 0 namei 1024 6680 0 6680 1 0 1 1 0 8 1 percpumem 16 37 0 5 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 2 0 0 1 0 1 1 0 8 0 scxspl 192 6980 0 6980 8 5 3 7 0 8 3 plimitpl 152 37 0 29 1 0 1 1 0 8 0 sigapl 432 441 0 425 3 1 2 3 0 8 0 futexpl 56 4830 0 4827 1 0 1 1 0 8 0 knotepl 112 75 0 56 1 0 1 1 0 8 0 kqueuepl 144 35 0 30 1 0 1 1 0 8 0 pipelkpl 48 153 0 142 1 0 1 1 0 8 0 pipepl 120 306 0 285 3 1 2 2 0 8 1 fdescpl 496 442 0 425 3 0 3 3 0 8 0 filepl 152 3234 0 3128 7 2 5 6 0 8 0 lockfpl 104 65 0 64 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 20 0 9 1 0 1 1 0 8 0 ucredpl 96 253 0 244 1 0 1 1 0 8 0 zombiepl 144 425 0 425 1 0 1 1 0 8 1 processpl 960 458 0 425 5 0 5 5 0 8 0 procpl 624 995 0 949 4 0 4 4 0 8 0 sosppl 128 6 0 6 1 0 1 1 0 8 1 sockpl 400 656 0 636 5 1 4 5 0 8 2 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 10 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 187 0 0 23 0 23 23 0 8 0 mtagpl 80 39 0 0 1 0 1 1 0 8 0 mbufpl 256 310 0 0 19 0 19 19 0 8 0 bufpl 280 4692 0 174 323 0 323 323 0 8 0 anonpl 16 58395 0 37257 87 1 86 86 0 125 0 amapchunkpl 152 2369 0 2208 8 1 7 8 0 158 0 amappl16 192 2364 0 1189 60 0 60 60 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 6 0 3 2 1 1 1 0 8 0 amappl13 168 128 0 125 1 0 1 1 0 8 0 amappl12 160 3 0 2 2 1 1 1 0 8 0 amappl11 152 74 0 56 1 0 1 1 0 8 0 amappl10 144 19 0 15 1 0 1 1 0 8 0 amappl9 136 396 0 392 1 0 1 1 0 8 0 amappl8 128 329 0 297 3 1 2 2 0 8 0 amappl7 120 120 0 109 1 0 1 1 0 8 0 amappl6 112 37 0 28 1 0 1 1 0 8 0 amappl5 104 137 0 122 1 0 1 1 0 8 0 amappl4 96 810 0 775 2 1 1 2 0 8 0 amappl3 88 110 0 103 1 0 1 1 0 8 0 amappl2 80 2583 0 2507 3 1 2 3 0 8 0 amappl1 72 19948 0 19482 25 15 10 20 0 8 0 amappl 80 1246 0 1197 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 15 0 0 1 0 1 1 0 8 0 uaddrrnd 24 444 0 425 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 444 0 425 1 0 1 1 0 8 0 vmmpekpl 168 7583 0 7545 2 0 2 2 0 8 0 vmmpepl 168 61211 0 58760 122 15 107 119 0 357 0 vmsppl 368 443 0 425 2 0 2 2 0 8 0 pdppl 4096 895 0 852 6 0 6 6 0 8 0 pvpl 32 185566 0 160694 201 0 201 201 0 265 0 pmappl 232 443 0 425 3 1 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 184 0 4 6 0 6 6 0 8 0