uvm_fault(0xffffffff828ffff0, 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(0xffffffff828ffff0, 0xa, 0, 1) -> e vio_rxeof(ffff80000017b000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018 end trace frame: 0xffff800020d915b0, count: 0 ddb{0}> trace vio_rxeof(ffff80000017b000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018 vio_rx_intr(ffff80000017b050) at vio_rx_intr+0x4d sys/dev/pv/if_vio.c:1056 intr_handler(ffff800020d91610,ffff800000255b80) 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(ffffffff82789ff0) 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 0xffff800020d91550 rbx 0xffff80000017b000 rdx 0 rcx 0xffffffff82789ff0 cpu_info_full_primary+0x1ff0 rax 0xffffffff82789ff0 cpu_info_full_primary+0x1ff0 r8 0x2 r9 0 r10 0xf06f3cb0d5e00d17 r11 0x11696656399c90bd r12 0xffff800000024c00 r13 0xc r14 0xfffffd807222d400 r15 0 rip 0xffffffff81eae8d1 vio_rxeof+0x191 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020d914c0 ss 0x10 vio_rxeof+0x191: movzwl 0xa(%r15),%eax ddb{0}> show proc PROC (idle0) pid=319762 stat=onproc flags process=14000 proc=40000200 pri=0, usrpri=50, nice=20 forw=0x2deccbfded1c2fee, list=0xffff800020d89d40,0xffff800020d89120 process=0xffff800020d8aba0 user=0xffff800020d8c000, vmspace=0xffffffff828ffff0 estcpu=0, cpticks=13705, pctcpu=0.0 user=0, sys=0, intr=1 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 51295 94877 38404 0 3 0x80 fsleep syz-executor.1 51295 159376 38404 0 3 0x4000080 netio syz-executor.1 31303 311076 0 0 3 0x14280 nfsidl nfsio 94676 460313 0 0 3 0x14280 nfsidl nfsio 32667 389516 0 0 3 0x14280 nfsidl nfsio 27447 316910 0 0 3 0x14280 nfsidl nfsio 72454 215606 0 0 3 0x14280 nfsidl nfsio 95939 16012 0 0 3 0x14280 nfsidl nfsio 90712 169259 0 0 3 0x14280 nfsidl nfsio 62164 162752 0 0 3 0x14280 nfsidl nfsio 47849 167377 0 0 3 0x14280 nfsidl nfsio 5670 138104 0 0 3 0x14280 nfsidl nfsio 41511 466011 0 0 3 0x14280 nfsidl nfsio 3153 27699 0 0 3 0x14280 nfsidl nfsio 3599 341881 0 0 3 0x14280 nfsidl nfsio 41006 347087 0 0 3 0x14280 nfsidl nfsio 28007 399621 0 0 3 0x14280 nfsidl nfsio 26146 375646 0 0 3 0x14280 nfsidl nfsio 35438 208380 0 0 3 0x14280 nfsidl nfsio 81327 195594 0 0 3 0x14280 nfsidl nfsio 64975 15908 0 0 3 0x14280 nfsidl nfsio 49464 207244 0 0 3 0x14280 nfsidl nfsio 38404 82088 42144 0 3 0x82 nanosleep syz-executor.1 84251 183329 0 0 3 0x14200 bored sosplice 81566 131386 42144 0 3 0x2 biowait syz-executor.0 42144 301309 42788 0 3 0x82 thrsleep syz-fuzzer 42144 348566 42788 0 3 0x4000082 nanosleep syz-fuzzer 42144 82845 42788 0 3 0x4000082 thrsleep syz-fuzzer 42144 424323 42788 0 3 0x4000082 thrsleep syz-fuzzer 42144 330779 42788 0 3 0x4000082 thrsleep syz-fuzzer 42144 468093 42788 0 3 0x4000082 nanosleep syz-fuzzer 42144 303066 42788 0 3 0x4000082 thrsleep syz-fuzzer 42144 445600 42788 0 3 0x4000082 thrsleep syz-fuzzer 42144 461137 42788 0 3 0x4000082 kqread syz-fuzzer 42144 518978 42788 0 3 0x4000082 thrsleep syz-fuzzer 42788 55831 45616 0 3 0x10008a pause ksh 45616 465716 14779 0 3 0x92 select sshd 56402 274022 1 0 3 0x100083 ttyin getty 14779 504181 1 0 3 0x80 select sshd 71216 400970 5819 74 3 0x100092 bpf pflogd 5819 269379 1 0 3 0x80 netio pflogd 207 476276 13286 73 3 0x100090 kqread syslogd 13286 193372 1 0 3 0x100082 netio syslogd 79252 142132 1 77 3 0x100090 poll dhclient 70421 373181 1 0 3 0x80 poll dhclient 31503 155388 0 0 3 0x14200 bored smr 26635 377820 0 0 3 0x14200 pgzero zerothread 12496 450622 0 0 3 0x14200 aiodoned aiodoned 12940 119777 0 0 3 0x14200 syncer update 50897 354156 0 0 3 0x14200 cleaner cleaner 85655 489852 0 0 3 0x14200 reaper reaper 25214 185012 0 0 3 0x14200 pgdaemon pagedaemon 99193 495289 0 0 3 0x14200 bored crynlk 89565 257124 0 0 3 0x14200 bored crypto 23021 28287 0 0 3 0x40014200 acpi0 acpi0 82235 449759 0 0 7 0x40014200 idle1 28900 94850 0 0 3 0x14200 bored softnet 45062 121058 0 0 3 0x14200 bored systqmp 97431 413907 0 0 3 0x14200 bored systq 17448 398309 0 0 3 0x40014200 bored softclock *11307 319762 0 0 7 0x40014200 idle0 1 334055 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 81566 (syz-executor.0) thread 0xffff800020dddd48 (131386) exclusive rrwlock inode r = 0 (0xfffffd80644384e8) #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 (0xfffffd806856ca30) #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 11307 (idle0) thread 0xffff800020d89860 (319762) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828c71f0) #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 9505 6419K 6677K 78643K 10910 0 pcb 13 8K 8K 78643K 65 0 rtable 104 5K 7K 78643K 438 0 ifaddr 71 15K 15K 78643K 136 0 counters 43 33K 34K 78643K 61 0 ioctlops 0 0K 4K 78643K 1526 0 iov 0 0K 16K 78643K 395 0 mount 1 1K 1K 78643K 1 0 vnodes 1218 77K 77K 78643K 1337 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 3 5K 5K 78643K 7 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 109 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 818 0 sigio 1 0K 0K 78643K 10 0 proc 62 63K 83K 78643K 509 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 15 0 in_multi 50 2K 2K 78643K 115 0 ether_multi 1 0K 0K 78643K 3 0 mrt 0 0K 0K 78643K 6 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 245 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 108 22K 24K 78643K 3215 0 UVM aobj 50 4K 4K 78643K 50 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 16 0 NDP 10 0K 0K 78643K 34 0 temp 93 3864K 3931K 78643K 11000 0 kqueue 3 4K 6K 78643K 4 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 12 0 6 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 33 0 31 1 0 1 1 0 8 0 rtentry 112 91 0 53 2 0 2 2 0 8 0 unpcb 120 172 0 160 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 642 0 642 1 1 0 1 0 8 0 tcpcb 544 525 0 520 3 1 2 2 0 8 1 inpcb 296 805 0 797 5 3 2 2 0 8 1 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 20 0 12 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 ppxss 1136 2 0 2 2 2 0 1 0 8 0 pfstscr 40 4 0 4 1 1 0 1 0 8 0 pffrag 232 2 0 2 1 1 0 1 0 482 0 pffrnode 88 2 0 2 1 1 0 1 0 8 0 pffrent 40 5 0 5 1 1 0 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 pfrktable 1344 16 0 12 1 0 1 1 0 8 0 pfstitem 24 15 0 13 1 0 1 1 0 8 0 pfstkey 112 21 0 19 1 0 1 1 0 8 0 pfstate 328 17 0 15 2 1 1 2 0 8 0 pfrule 1360 29 0 19 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 327 0 139 13 0 13 13 0 8 0 art_table 32 328 0 139 2 0 2 2 0 8 0 art_node 16 90 0 58 1 0 1 1 0 8 0 semapl 112 103 0 93 1 0 1 1 0 8 0 shmpl 112 47 0 0 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2305 0 901 89 0 89 89 0 8 0 ffsino 272 2305 0 901 96 1 95 95 0 8 0 nchpl 144 3742 0 2145 60 0 60 60 0 8 0 uvmvnodes 72 2426 0 0 45 0 45 45 0 8 0 vnodes 208 2426 0 0 128 0 128 128 0 8 0 namei 1024 12646 0 12645 3 2 1 1 0 8 0 percpumem 16 41 0 9 1 0 1 1 0 8 0 vmpool 560 5 0 5 2 2 0 1 0 8 0 pfiaddrpl 120 7 0 3 1 0 1 1 0 8 0 scxspl 192 10550 0 10549 9 8 1 4 0 8 0 plimitpl 152 617 0 609 1 0 1 1 0 8 0 sigapl 424 1051 0 999 6 0 6 6 0 8 0 futexpl 56 17803 0 17802 2 1 1 1 0 8 0 knotepl 112 74 0 55 1 0 1 1 0 8 0 kqueuepl 144 46 0 44 1 0 1 1 0 8 0 pipepl 304 164 0 154 3 1 2 2 0 8 1 fdescpl 496 1015 0 999 3 0 3 3 0 8 0 filepl 152 6930 0 6827 7 1 6 6 0 8 1 lockfpl 104 74 0 73 1 0 1 1 0 8 0 lockfspl 48 30 0 29 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 23 0 12 1 0 1 1 0 8 0 ucredpl 96 2700 0 2691 1 0 1 1 0 8 0 zombiepl 144 999 0 999 2 1 1 1 0 8 1 processpl 992 1051 0 999 9 2 7 7 0 8 0 procpl 624 2411 0 2349 6 0 6 6 0 8 0 sosppl 128 3 0 3 1 1 0 1 0 8 0 sockpl 400 1014 0 992 8 4 4 4 0 8 1 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 16 0 0 2 0 2 2 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 202 0 0 24 1 23 24 0 8 0 mtagpl 96 15 0 0 1 0 1 1 0 8 0 mbufpl 256 301 0 0 19 1 18 18 0 8 0 bufpl 280 4690 0 136 326 0 326 326 0 8 0 anonpl 16 114882 0 97745 102 32 70 85 0 124 0 amapchunkpl 152 4685 0 4538 8 1 7 8 0 158 0 amappl16 192 5554 0 4636 72 25 47 58 0 8 0 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 25 0 21 1 0 1 1 0 8 0 amappl13 168 168 0 165 1 0 1 1 0 8 0 amappl12 160 248 0 243 1 0 1 1 0 8 0 amappl11 152 68 0 52 1 0 1 1 0 8 0 amappl10 144 29 0 23 1 0 1 1 0 8 0 amappl9 136 393 0 390 1 0 1 1 0 8 0 amappl8 128 365 0 334 2 0 2 2 0 8 0 amappl7 120 131 0 117 1 0 1 1 0 8 0 amappl6 112 21 0 20 1 0 1 1 0 8 0 amappl5 104 1137 0 1121 1 0 1 1 0 8 0 amappl4 96 642 0 612 1 0 1 1 0 8 0 amappl3 88 123 0 117 1 0 1 1 0 8 0 amappl2 80 7152 0 7080 2 0 2 2 0 8 0 amappl1 72 36619 0 36165 23 13 10 18 0 8 0 amappl 80 2673 0 2629 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 49 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1020 0 1004 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1020 0 1004 1 0 1 1 0 8 0 vmmpekpl 168 11459 0 11425 2 0 2 2 0 8 0 vmmpepl 168 134224 0 132136 149 52 97 125 0 357 1 vmsppl 368 1019 0 1004 2 0 2 2 0 8 0 pdppl 4096 2047 0 2008 8 2 6 6 0 8 0 pvpl 32 467449 0 447022 238 64 174 201 0 265 7 pmappl 232 1019 0 1004 4 3 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 286 0 15 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace vio_rxeof(ffff80000017b000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018 vio_rx_intr(ffff80000017b050) at vio_rx_intr+0x4d sys/dev/pv/if_vio.c:1056 intr_handler(ffff800020d91610,ffff800000255b80) 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(ffffffff82789ff0) 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