panic: thread 0 p_stat is 0 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83507a4c) at panic+0x1cf sys/kern/subr_prf.c:198 wakeup_n(ffff80000002c000,1) at wakeup_n+0x3af task_add(ffff80000002c000,ffff8000002a24d8) at task_add+0x15a sys/kern/kern_task.c:372 ifiq_input(ffff8000002a2490,ffff8000314b7180) at ifiq_input+0x4af sys/net/ifq.c:784 vio_rxeof(ffff80000002fc00) at vio_rxeof+0x429 sys/dev/pv/if_vio.c:1626 vio_rx_intr(ffff8000002a3000) at vio_rx_intr+0x98 sys/dev/pv/if_vio.c:1642 intr_handler(ffff8000314b72c0,ffff8000002a1600) at intr_handler+0xcb sys/arch/amd64/amd64/intr.c:-1 Xintr_ioapic_edge25_untramp() at Xintr_ioapic_edge25_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x9e sys/dev/kcov.c:158 uvm_objtree_RBT_COMPARE(ffff8000314b7428,fffffd800773b700) at uvm_objtree_RBT_COMPARE+0x27 sys/uvm/uvm_page.c:-1 _rb_find(ffffffff838729c8,fffffd805feaf990,ffff8000314b7428) at _rb_find+0x68 sys/kern/subr_tree.c:450 uvm_pagelookup(fffffd805feaf980,c9a000) at uvm_pagelookup+0x51 uvm_objtree_RBT_FIND sys/uvm/uvm_object.h:93 [inline] uvm_pagelookup(fffffd805feaf980,c9a000) at uvm_pagelookup+0x51 sys/uvm/uvm_page.c:1214 buf_map(fffffd805feaf8c0) at buf_map+0x2a6 sys/kern/vfs_biomem.c:-1 end trace frame: 0xffff8000314b76b0, count: 0 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: thread 0 p_stat is 0 ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83507a4c) at panic+0x1cf sys/kern/subr_prf.c:198 wakeup_n(ffff80000002c000,1) at wakeup_n+0x3af task_add(ffff80000002c000,ffff8000002a24d8) at task_add+0x15a sys/kern/kern_task.c:372 ifiq_input(ffff8000002a2490,ffff8000314b7180) at ifiq_input+0x4af sys/net/ifq.c:784 vio_rxeof(ffff80000002fc00) at vio_rxeof+0x429 sys/dev/pv/if_vio.c:1626 vio_rx_intr(ffff8000002a3000) at vio_rx_intr+0x98 sys/dev/pv/if_vio.c:1642 intr_handler(ffff8000314b72c0,ffff8000002a1600) at intr_handler+0xcb sys/arch/amd64/amd64/intr.c:-1 Xintr_ioapic_edge25_untramp() at Xintr_ioapic_edge25_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x9e sys/dev/kcov.c:158 uvm_objtree_RBT_COMPARE(ffff8000314b7428,fffffd800773b700) at uvm_objtree_RBT_COMPARE+0x27 sys/uvm/uvm_page.c:-1 _rb_find(ffffffff838729c8,fffffd805feaf990,ffff8000314b7428) at _rb_find+0x68 sys/kern/subr_tree.c:450 uvm_pagelookup(fffffd805feaf980,c9a000) at uvm_pagelookup+0x51 uvm_objtree_RBT_FIND sys/uvm/uvm_object.h:93 [inline] uvm_pagelookup(fffffd805feaf980,c9a000) at uvm_pagelookup+0x51 sys/uvm/uvm_page.c:1214 buf_map(fffffd805feaf8c0) at buf_map+0x2a6 sys/kern/vfs_biomem.c:-1 buf_get(0,0,ffd000) at buf_get+0x5be sys/kern/vfs_bio.c:1163 geteblk(ffd000) at geteblk+0x3c sys/kern/vfs_bio.c:-1 writedisklabel(d02,ffffffff83064980,ffff800000039000) at writedisklabel+0x4b sys/arch/amd64/amd64/disksubr.c:133 sdioctl(d01,84946467,ffff800001583000,3,ffff8000300b0548) at sdioctl+0x959 sys/scsi/sd.c:919 VOP_IOCTL(fffffd80767511f0,84946467,ffff800001583000,3,fffffd8007ffd820,ffff8000300b0548) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8075d34530,84946467,ffff800001583000,ffff8000300b0548) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537 sys_ioctl(ffff8000300b0548,ffff8000314b7b80,ffff8000314b7ad0) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff8000314b7b80) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000314b7b80) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa9ad67e9e80, count: -23 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff8000314b6f80 rbx 0xffff80002a6ec298 rdx 0xffff8000015e7a00 rcx 0 rax 0xffff8000300b0548 r8 0x101010101010101 r9 0x8080808080808080 r10 0xde43fb36aeb99011 r11 0xb93766e3992f2c2e r12 0 r13 0xfd r14 0 r15 0x1 rip 0xffffffff82b64e75 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000314b6f70 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb> show proc PROC () tid=342070 pid=0 tcnt=0 stat=onproc flags process=0 proc=4000000 runpri=81, usrpri=82, slppri=32, nice=0 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000300b1a08,0xffff8000300b07f0 process=0xffff80002a866420 user=0xffff8000314b2000, vmspace=0xfffffd806c976e78 estcpu=32, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11059 12104K 12432K 166960K 13096 0 pcb 17 14K 22K 166960K 239 0 rtable 163 4K 7K 166960K 455 0 pf 33 13K 21K 166960K 73 0 ifaddr 33 5K 7K 166960K 62 0 ifgroup 50 2K 2K 166960K 83 0 sysctl 3 1K 9K 166960K 13 0 counters 33 17K 18K 166960K 43 0 ioctlops 1 2K 4K 166960K 346 0 iov 0 0K 16K 166960K 29 0 mount 1 1K 1K 166960K 1 0 log 2 0K 0K 166960K 6 0 vnodes 1413 89K 89K 166960K 1969 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 84 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 57K 232K 166960K 633 0 sigio 0 0K 0K 166960K 4 0 proc 20 25K 108K 166960K 583 0 subproc 72 4K 4K 166960K 83 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 88 0 in_multi 66 5K 7K 166960K 140 0 ether_multi 1 0K 0K 166960K 8 0 mrt 1 0K 0K 166960K 28 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 456 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 113 81K 167K 166960K 7152 0 UVM aobj 14 2K 2K 166960K 15 0 pinsyscall 19 38K 93K 166960K 1761 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 51 0 NDP 11 0K 2K 166960K 42 0 temp 75 9116K 9180K 166960K 25970 0 kqueue 1 2K 32K 166960K 143 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 101 0 101 2 1 1 2 0 8 1 rtentry 136 143 0 73 4 0 4 4 0 8 0 unpcb 144 344 0 344 4 3 1 4 0 8 1 syncache 336 6 0 6 1 1 0 1 0 8 0 tcpcb 736 176 0 174 7 6 1 7 0 8 0 arp 96 21 0 7 1 0 1 1 0 8 0 inpcb 328 646 0 643 12 10 2 12 0 8 1 nd6 112 31 0 16 1 0 1 1 0 8 0 pkpcb 40 3 0 3 2 1 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1072 5 0 5 1 1 0 1 0 8 0 pfstscr 40 2 0 0 1 0 1 1 0 8 0 pffrag 232 3 0 1 1 0 1 1 0 482 0 pffrnode 88 3 0 1 1 0 1 1 0 8 0 pffrent 40 8 0 6 1 0 1 1 0 8 0 pfanchor 1288 3 0 0 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 2 0 0 1 0 1 1 0 8 0 pfstate 384 1 0 0 1 0 1 1 0 8 0 pfrule 1360 6 0 5 1 0 1 1 0 8 0 rttmr 136 4 0 4 2 1 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 678 0 372 30 0 30 30 0 8 4 art_table 40 679 0 372 5 0 5 5 0 8 0 art_node 32 143 0 79 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 0 1 0 1 1 0 8 0 semapl 64 82 0 72 1 0 1 1 0 8 0 shmpl 112 12 0 1 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dirhash: pool(0xffffffff83a26428:dirhash): free list modified: page 0xffff80002a778000; item ordinal 0; addr 0xffff80002a778800 (p 0xfffffd806ee74000); offset 0x0=0x0 pool(dirhash): free list modified: page 0xffff80002a778000; item ordinal 0; addr 0xffff80002a778800 (p 0xfffffd806ee74000); offset 0x0=0x0 dirhash: pool(0xffffffff83a26428:dirhash): page inconsistency: page 0xffff80002a778000; item ordinal 1; addr 0xd8aba53c7035b456 dino2pl 256 2540 0 1082 92 0 92 92 0 8 0 ffsino 256 2540 0 1082 92 0 92 92 0 8 0 nchpl 144 3425 0 1731 64 0 64 64 0 8 0 vnodes 216 2964 0 0 165 0 165 165 0 8 0 namei 1024 12274 0 12274 2 1 1 2 0 8 1 namei: pool(0xffffffff83a075c0:namei): free list modified: page 0xffff80002a748000; item ordinal 0; addr 0xffff80002a748800 (p 0xfffffd807f7e2000); offset 0x0=0x0 pool(namei): free list modified: page 0xffff80002a748000; item ordinal 0; addr 0xffff80002a748800 (p 0xfffffd807f7e2000); offset 0x0=0x0 namei: pool(0xffffffff83a075c0:namei): page inconsistency: page 0xffff80002a748000; item ordinal 1; addr 0x8b4cb98696dcebff kstatmem 264 43 0 20 3 1 2 3 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 17080 0 17080 8 7 1 8 1 8 1 plimitpl 152 161 0 150 1 0 1 1 0 8 0 sigapl 424 937 0 906 8 2 6 8 0 8 0 knotepl 120 22081 0 22064 16 8 8 10 0 8 6 kqueuepl 184 250 0 249 4 3 1 4 0 8 0 pipepl 304 161 0 134 3 0 3 3 0 8 0 fdescpl 448 905 0 886 5 1 4 5 0 8 0 filepl 120 6083 0 5928 15 5 10 15 0 8 1 lockfpl 104 492 0 492 2 1 1 2 0 8 1 lockfspl 48 70 0 70 1 0 1 1 0 8 1 sessionpl 144 48 0 45 1 0 1 1 0 8 0 pgrppl 48 59 0 48 1 0 1 1 0 8 0 ucredpl 104 1009 0 1006 1 0 1 1 0 8 0 zombiepl 144 981 0 980 1 0 1 1 0 8 0 processpl 1152 938 0 906 5 0 5 5 0 8 0 processpl: pool(0xffffffff83a29188:processpl): page inconsistency: page 0x0; at page head addr 0xffff80002a867f90 (p 0xffff80002a864000) procpl 664 1694 0 1656 7 1 6 7 0 8 1 procpl: pool(0xffffffff83a28fd0:procpl): page inconsistency: page 0x0; at page head addr 0xffff80002a6edf90 (p 0xffff80002a6ec000) procpl: pool(0xffffffff83a28fd0:procpl): page inconsistency: page 0x0; at page head addr 0xffff80002a767f90 (p 0xffff80002a766000) sosppl 176 1 0 1 1 1 0 1 0 8 0 sockpl 552 1174 0 1171 12 10 2 12 0 8 1 mcl64k 65536 91 0 91 2 1 1 1 0 8 1 mcl9k128 9344 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 7 0 7 1 1 0 1 0 8 0 mcl4k 4096 3170 0 3113 15 6 9 14 0 8 1 mcl2k 2048 659 0 658 4 3 1 4 0 8 0 mtagpl 96 8 0 6 1 0 1 1 0 8 0 mbufpl 256 9626 0 9494 18 1 17 18 0 8 2 bufpl 280 6284 0 105 442 0 442 442 0 8 0