uvm_fault(0xffffffff828ea190, 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(0xffffffff828ea190, 0xa, 0, 1) -> e vio_rxeof(ffff80000017c000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018 end trace frame: 0xffff800020d91890, 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(ffff800020d918f0,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(ffffffff82742ff0) 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 0xffff800020d91830 rbx 0xffff80000017c000 rdx 0 rcx 0xffffffff82742ff0 cpu_info_full_primary+0x1ff0 rax 0xffffffff82742ff0 cpu_info_full_primary+0x1ff0 r8 0x2 r9 0 r10 0x25af613a6dc0988d r11 0x316770e88f2ae0ad r12 0xffff800000024c00 r13 0xc r14 0xfffffd806a3e8c00 r15 0 rip 0xffffffff815cb8e1 vio_rxeof+0x191 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020d917a0 ss 0x10 vio_rxeof+0x191: movzwl 0xa(%r15),%eax ddb{0}> show proc PROC (idle0) pid=283893 stat=onproc flags process=14000 proc=40000200 pri=0, usrpri=50, nice=20 forw=0xcf39abf6edda75f, list=0xffff800020d89d40,0xffff800020d89600 process=0xffff800020d8b360 user=0xffff800020d8c000, vmspace=0xffffffff828ea190 estcpu=0, cpticks=4131, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 32331 200507 0 0 3 0x14280 nfsidl nfsio 35115 235822 0 0 3 0x14280 nfsidl nfsio 83070 168445 0 0 3 0x14280 nfsidl nfsio 50307 14575 0 0 3 0x14280 nfsidl nfsio 54688 197311 0 0 3 0x14280 nfsidl nfsio 52958 479208 0 0 3 0x14280 nfsidl nfsio 53780 6073 0 0 3 0x14280 nfsidl nfsio 53147 216261 0 0 3 0x14280 nfsidl nfsio 95144 73591 0 0 3 0x14280 nfsidl nfsio 69690 111803 0 0 3 0x14280 nfsidl nfsio 30421 267435 0 0 3 0x14280 nfsidl nfsio 2959 371292 0 0 3 0x14280 nfsidl nfsio 45412 315947 0 0 3 0x14280 nfsidl nfsio 77834 285437 0 0 3 0x14280 nfsidl nfsio 4684 16495 0 0 3 0x14280 nfsidl nfsio 99328 114639 0 0 3 0x14280 nfsidl nfsio 50132 365020 0 0 3 0x14280 nfsidl nfsio 37220 11596 0 0 3 0x14280 nfsidl nfsio 73025 162474 0 0 3 0x14280 nfsidl nfsio 14474 482137 0 0 3 0x14280 nfsidl nfsio 45559 311343 0 0 3 0x14200 bored sosplice 9294 320253 20842 0 3 0x82 piperd syz-executor.1 66356 300449 20842 0 3 0x2 biowait syz-executor.0 20842 146386 85179 0 3 0x82 thrsleep syz-fuzzer 20842 35564 85179 0 3 0x4000082 nanosleep syz-fuzzer 20842 228859 85179 0 3 0x4000082 thrsleep syz-fuzzer 20842 330052 85179 0 3 0x4000082 thrsleep syz-fuzzer 20842 415289 85179 0 3 0x4000082 thrsleep syz-fuzzer 20842 430980 85179 0 3 0x4000082 thrsleep syz-fuzzer 20842 201682 85179 0 3 0x4000082 thrsleep syz-fuzzer 20842 309969 85179 0 7 0x4000002 syz-fuzzer 20842 42659 85179 0 3 0x4000082 thrsleep syz-fuzzer 20842 463031 85179 0 3 0x4000082 kqread syz-fuzzer 85179 95349 76523 0 3 0x10008a pause ksh 76523 387983 44051 0 3 0x92 select sshd 63163 331469 1 0 3 0x100083 ttyin getty 44051 370847 1 0 3 0x80 select sshd 27296 492406 35206 74 3 0x100092 bpf pflogd 35206 307639 1 0 3 0x80 netio pflogd 97906 462629 25737 73 3 0x100090 kqread syslogd 25737 210303 1 0 3 0x100082 netio syslogd 40552 516596 1 77 3 0x100090 poll dhclient 92272 9464 1 0 3 0x80 poll dhclient 39779 520232 0 0 3 0x14200 bored smr 28438 431246 0 0 3 0x14200 pgzero zerothread 6825 47541 0 0 3 0x14200 aiodoned aiodoned 43480 308395 0 0 3 0x14200 syncer update 13909 395597 0 0 3 0x14200 cleaner cleaner 17333 158782 0 0 3 0x14200 reaper reaper 18685 440768 0 0 3 0x14200 pgdaemon pagedaemon 2890 18254 0 0 3 0x14200 bored crynlk 46256 280884 0 0 3 0x14200 bored crypto 1730 360934 0 0 3 0x40014200 acpi0 acpi0 72985 150769 0 0 3 0x40014200 idle1 65343 418160 0 0 3 0x14200 bored softnet 27116 64550 0 0 3 0x14200 bored systqmp 39897 77710 0 0 3 0x14200 bored systq 28325 293620 0 0 3 0x40014200 bored softclock *72884 283893 0 0 7 0x40014200 idle0 1 100945 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 66356 (syz-executor.0) thread 0xffff800020ddd388 (300449) exclusive rrwlock inode r = 0 (0xfffffd8064586c50) #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 vget+0x1c8 sys/kern/vfs_subr.c:671 #6 ufs_ihashget+0x141 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x74 sys/ufs/ffs/ffs_vfsops.c:1329 #8 ufs_lookup+0x14b7 sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 #10 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568 #11 namei+0x63c sys/kern/vfs_lookup.c:249 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806b207918) #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 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #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 72884 (idle0) thread 0xffff800020d89ad0 (283893) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828e6a68) #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 9517 6430K 6815K 78643K 11176 0 pcb 13 8K 8K 78643K 76 0 rtable 111 5K 6K 78643K 448 0 ifaddr 73 14K 14K 78643K 152 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 61 0 ioctlops 0 0K 4K 78643K 1541 0 iov 0 0K 16K 78643K 28 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1405 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 2 1K 1K 78643K 2 0 sem 10 1K 1K 78643K 18 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 506 0 sigio 0 0K 0K 78643K 27 0 proc 61 63K 95K 78643K 467 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 42 0 in_multi 43 2K 3K 78643K 135 0 ether_multi 1 0K 0K 78643K 10 0 mrt 0 0K 0K 78643K 3 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 229 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 129 72K 73K 78643K 2472 0 UVM aobj 21 2K 2K 78643K 21 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 50 0 NDP 12 0K 0K 78643K 34 0 temp 116 3864K 3928K 78643K 3785 0 kqueue 3 4K 8K 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 11 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 43 0 41 1 0 1 1 0 8 0 rtentry 112 96 0 54 2 0 2 2 0 8 0 unpcb 120 330 0 320 1 0 1 1 0 8 0 syncache 264 10 0 10 4 4 0 1 0 8 0 tcpqe 32 87 0 87 2 2 0 1 0 8 0 tcpcb 544 131 0 126 3 1 2 2 0 8 1 inpcb 296 472 0 464 3 1 2 2 0 8 0 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 27 0 23 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 ppxss 1136 2 0 2 2 2 0 1 0 8 0 pffrag 232 4 0 3 2 1 1 1 0 482 0 pffrnode 88 4 0 3 2 1 1 1 0 8 0 pffrent 40 94 0 93 2 1 1 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 21 0 19 2 1 1 1 0 8 0 pfstitem 24 27 0 14 1 0 1 1 0 8 0 pfstkey 112 27 0 14 1 0 1 1 0 8 0 pfstate 328 27 0 14 3 0 3 3 0 8 0 pfrule 1360 31 0 23 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 422 0 243 15 0 15 15 0 8 2 art_table 32 423 0 243 2 0 2 2 0 8 0 art_node 16 95 0 56 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 3 1 0 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 8 0 0 1 0 1 1 0 8 0 shmpl 112 18 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2132 0 730 89 0 89 89 0 8 0 ffsino 272 2132 0 730 95 0 95 95 0 8 0 nchpl 144 3203 0 1594 60 0 60 60 0 8 0 uvmvnodes 72 2313 0 0 43 0 43 43 0 8 0 vnodes 208 2313 0 0 122 0 122 122 0 8 0 namei 1024 9841 0 9841 2 1 1 1 0 8 1 percpumem 16 41 0 9 1 0 1 1 0 8 0 vcpupl 1984 4 0 0 1 0 1 1 0 8 0 vmpool 560 8 0 4 1 0 1 1 0 8 0 pfiaddrpl 120 8 0 6 2 1 1 1 0 8 0 scsiplug 64 2 0 2 1 1 0 1 0 8 0 scxspl 192 8765 0 8764 9 8 1 7 0 8 0 plimitpl 152 39 0 31 1 0 1 1 0 8 0 sigapl 424 742 0 691 6 0 6 6 0 8 0 futexpl 56 7291 0 7291 2 1 1 1 0 8 1 knotepl 112 69 0 50 1 0 1 1 0 8 0 kqueuepl 144 83 0 80 1 0 1 1 0 8 0 pipepl 304 130 0 120 2 1 1 2 0 8 0 fdescpl 496 706 0 691 3 0 3 3 0 8 0 filepl 152 4225 0 4125 6 1 5 5 0 8 1 lockfpl 104 73 0 72 1 0 1 1 0 8 0 lockfspl 48 32 0 31 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 96 291 0 282 1 0 1 1 0 8 0 zombiepl 144 691 0 691 2 1 1 1 0 8 1 processpl 992 742 0 691 7 0 7 7 0 8 0 procpl 624 1689 0 1629 7 2 5 6 0 8 0 sosppl 128 4 0 4 1 1 0 1 0 8 0 sockpl 400 851 0 831 7 3 4 4 0 8 1 mcl64k 65536 6 0 0 1 0 1 1 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 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 9 0 0 2 0 2 2 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 280 0 0 34 0 34 34 0 8 0 mtagpl 96 40 0 0 1 0 1 1 0 8 0 mbufpl 256 361 0 0 20 0 20 20 0 8 0 bufpl 280 4006 0 139 277 0 277 277 0 8 0 anonpl 16 91358 0 73902 99 18 81 87 0 124 10 amapchunkpl 152 4412 0 4251 27 15 12 21 0 158 4 amappl16 192 3396 0 2472 66 18 48 58 0 8 1 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 209 0 203 1 0 1 1 0 8 0 amappl13 168 318 0 314 1 0 1 1 0 8 0 amappl12 160 296 0 291 2 1 1 1 0 8 0 amappl11 152 53 0 38 1 0 1 1 0 8 0 amappl10 144 23 0 15 1 0 1 1 0 8 0 amappl9 136 394 0 391 1 0 1 1 0 8 0 amappl8 128 362 0 323 2 0 2 2 0 8 0 amappl7 120 118 0 106 1 0 1 1 0 8 0 amappl6 112 23 0 19 1 0 1 1 0 8 0 amappl5 104 614 0 598 1 0 1 1 0 8 0 amappl4 96 491 0 461 1 0 1 1 0 8 0 amappl3 88 311 0 306 1 0 1 1 0 8 0 amappl2 80 5000 0 4936 2 0 2 2 0 8 0 amappl1 72 28816 0 28385 23 13 10 18 0 8 0 amappl 80 1940 0 1893 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 20 0 0 1 0 1 1 0 8 0 uaddrrnd 24 714 0 695 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 714 0 695 1 0 1 1 0 8 0 vmmpekpl 168 8944 0 8899 3 0 3 3 0 8 0 vmmpepl 168 96597 0 94588 138 35 103 121 0 357 7 vmsppl 368 713 0 695 2 0 2 2 0 8 0 pdppl 4096 1435 0 1394 6 0 6 6 0 8 0 pvpl 32 268596 0 247962 235 33 202 208 0 265 33 pmappl 232 713 0 695 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 293 0 10 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(ffff800020d918f0,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(ffffffff82742ff0) 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 end of kernel end trace frame: 0xc0004b0668, count: -3