uvm_fault(0xffffffff82686a70, 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(0xffffffff82686a70, 0xa, 0, 1) -> e vio_rxeof(ffff80000017b000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018 end trace frame: 0xffff800020e21440, 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:1054 intr_handler(ffff800020e214a0,ffff800000255c00) at intr_handler+0x8f sys/arch/amd64/amd64/intr.c:529 Xintr_ioapic_edge19_untramp() at Xintr_ioapic_edge19_untramp+0x19f acpicpu_idle() at acpicpu_idle+0x331 sys/dev/acpi/acpicpu.c:1187 sched_idle(ffffffff824b6ff0) at sched_idle+0x3f7 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -6 ddb{0}> show registers rdi 0xc rsi 0xc rbp 0xffff800020e213e0 rbx 0xffff80000017b000 rdx 0 rcx 0xffff8000001ac000 rax 0xc r8 0x2 r9 0 r10 0xb3ccef22090dfb7c r11 0xb8c36f8df0793453 r12 0xffff800000024c00 r13 0xc r14 0xfffffd807f01f900 r15 0 rip 0xffffffff8192caa1 vio_rxeof+0x191 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e21350 ss 0x10 vio_rxeof+0x191: movzwl 0xa(%r15),%eax ddb{0}> show proc PROC (idle0) pid=319945 stat=onproc flags process=14000 proc=40000200 pri=0, usrpri=50, nice=20 forw=0x5339712bb868cd5f, list=0xffff800020e19d40,0xffff800020e19600 process=0xffff800020e1b710 user=0xffff800020e1c000, vmspace=0xffffffff82686a70 estcpu=0, cpticks=3478, pctcpu=0.0 user=0, sys=0, intr=1 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 52245 3105 77523 0 3 0x2 biowait syz-executor.0 77523 446949 4429 0 3 0x82 thrsleep syz-execprog 77523 392012 4429 0 3 0x4000082 nanosleep syz-execprog 77523 245250 4429 0 3 0x4000082 thrsleep syz-execprog 77523 165855 4429 0 3 0x4000082 thrsleep syz-execprog 77523 151648 4429 0 3 0x4000082 kqread syz-execprog 77523 339239 4429 0 3 0x4000082 thrsleep syz-execprog 77523 518678 4429 0 3 0x4000082 thrsleep syz-execprog 77523 156313 4429 0 3 0x4000082 thrsleep syz-execprog 77523 8653 4429 0 3 0x4000082 nanosleep syz-execprog 77523 235077 4429 0 3 0x4000082 thrsleep syz-execprog 4429 132338 62790 0 3 0x10008a pause ksh 62790 78519 23419 0 3 0x92 select sshd 61637 290896 1 0 3 0x100083 ttyin getty 23419 399238 1 0 3 0x80 select sshd 97461 110171 26141 74 3 0x100092 bpf pflogd 26141 482669 1 0 3 0x80 netio pflogd 67412 55259 59021 73 3 0x100090 kqread syslogd 59021 106599 1 0 3 0x100082 netio syslogd 94034 328674 1 77 3 0x100090 poll dhclient 21491 400477 1 0 3 0x80 poll dhclient 3262 228649 0 0 3 0x14200 bored smr 57665 349542 0 0 3 0x14200 pgzero zerothread 95725 273692 0 0 3 0x14200 aiodoned aiodoned 64799 256829 0 0 3 0x14200 syncer update 54851 65079 0 0 3 0x14200 cleaner cleaner 80840 95125 0 0 3 0x14200 reaper reaper 57297 383077 0 0 3 0x14200 pgdaemon pagedaemon 24697 416724 0 0 3 0x14200 bored crynlk 43734 289512 0 0 3 0x14200 bored crypto 18818 12146 0 0 3 0x40014200 acpi0 acpi0 14924 419480 0 0 7 0x40014200 idle1 84201 341222 0 0 3 0x14200 bored softnet 89180 327550 0 0 3 0x14200 bored systqmp 22792 450622 0 0 3 0x14200 bored systq 11690 389936 0 0 3 0x40014200 bored softclock * 3208 319945 0 0 7 0x40014200 idle0 1 139393 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 52245 (syz-executor.0) thread 0xffff800020e6c008 (3105) exclusive rrwlock inode r = 0 (0xfffffd806b9335e8) #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+0x1cf sys/ufs/ffs/ffs_alloc.c:392 #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 (0xfffffd806b9332b8) #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 3208 (idle0) thread 0xffff800020e19860 (319945) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8268a7c8) #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:525 #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:182 #5 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9466 6395K 6395K 78643K 10557 0 pcb 13 8K 8K 78643K 13 0 rtable 83 2K 2K 78643K 163 0 ifaddr 37 9K 9K 78643K 288 0 counters 41 33K 33K 78643K 41 0 ioctlops 0 0K 4K 78643K 1468 0 mount 1 1K 1K 78643K 1 0 vnodes 1183 74K 75K 78643K 1188 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1823 197K 290K 78643K 12980 0 file desc 2 4K 12K 78643K 267 0 proc 59 63K 83K 78643K 398 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 22 1K 1K 78643K 22 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 19 95K 95K 78643K 19 0 exec 0 0K 1K 78643K 197 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 77 12K 12K 78643K 1200 0 UVM aobj 2 2K 2K 78643K 2 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 5 0K 0K 78643K 7 0 temp 29 3033K 3097K 78643K 2365 0 kqueue 3 4K 4K 78643K 3 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 4 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 1 1 0 1 1 0 8 0 unpcb 120 29 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 1 1 0 1 0 8 0 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 283 0 277 1 0 1 1 0 8 0 nd6 48 3 0 0 1 0 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 pfstitem 24 11 0 0 1 0 1 1 0 8 0 pfstkey 112 11 0 0 1 0 1 1 0 8 0 pfstate 328 11 0 0 1 0 1 1 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 256 144 0 0 9 0 9 9 0 8 0 art_table 32 145 0 0 2 0 2 2 0 8 0 art_node 16 33 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1674 0 272 88 0 88 88 0 8 0 ffsino 272 1674 0 272 94 0 94 94 0 8 0 nchpl 144 2139 0 539 60 0 60 60 0 8 0 uvmvnodes 72 1684 0 0 31 0 31 31 0 8 0 vnodes 208 1684 0 0 89 0 89 89 0 8 0 namei 1024 5203 0 5202 1 0 1 1 0 8 0 percpumem 16 31 0 0 1 0 1 1 0 8 0 scxspl 192 5335 0 5334 2 1 1 2 0 8 0 plimitpl 152 15 0 8 1 0 1 1 0 8 0 sigapl 424 490 0 461 4 0 4 4 0 8 0 knotepl 112 47 0 36 1 0 1 1 0 8 0 kqueuepl 144 2 0 0 1 0 1 1 0 8 0 pipelkpl 48 77 0 70 1 0 1 1 0 8 0 pipepl 120 154 0 141 1 0 1 1 0 8 0 fdescpl 496 475 0