panic: kernel diagnostic assertion "bp->b_data != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/vfs_biomem.c", line 235 Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 88941 67776 0 0x8000010 0x4000000 0K syz-executor.3 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82950700) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8290a0dd,ffffffff828aa947,eb,ffffffff82890183) at __assert+0x29 sys/kern/subr_prf.c:157 buf_unmap(fffffd80658bdd30) at buf_unmap+0x1a8 sys/kern/vfs_biomem.c:235 buf_map(fffffd80655399f0) at buf_map+0x1e6 sys/kern/vfs_biomem.c:117 buf_get(fffffd806822b2c8,58,4000) at buf_get+0x459 sys/kern/vfs_bio.c:1175 getblk(fffffd806822b2c8,58,4000,0,ffffffffffffffff) at getblk+0xfd sys/kern/vfs_bio.c:1044 bread_cluster(fffffd806822b2c8,58,4000,ffff80002f714708) at bread_cluster+0x59 bio_doread sys/kern/vfs_bio.c:430 [inline] bread_cluster(fffffd806822b2c8,58,4000,ffff80002f714708) at bread_cluster+0x59 sys/kern/vfs_bio.c:593 ffs_read(ffff80002f714770) at ffs_read+0x2c3 VOP_READ(fffffd806822b2c8,ffff80002f714808,0,fffffd807f7d7820) at VOP_READ+0xc3 sys/kern/vfs_vops.c:227 uvn_io(fffffd806d332a20,ffff80002f714918,1,202,0) at uvn_io+0x3bd uvn_get(fffffd806d332a20,160000,ffff80002f7149d8,ffff80002f7149a8,0,1,a247a8786b6cd0c3,0) at uvn_get+0x1e9 sys/uvm/uvm_vnode.c:1110 uvm_fault_lower(ffff80002f714b40,ffff80002f714b78,ffff80002f714ac0,2) at uvm_fault_lower+0x362 sys/uvm/uvm_fault.c:1284 uvm_fault(fffffd807f002898,ccd5ab96000,2,1) at uvm_fault+0x255 sys/uvm/uvm_fault.c:637 end trace frame: 0xffff80002f714c70, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: kernel diagnostic assertion "bp->b_data != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/vfs_biomem.c", line 235 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82950700) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8290a0dd,ffffffff828aa947,eb,ffffffff82890183) at __assert+0x29 sys/kern/subr_prf.c:157 buf_unmap(fffffd80658bdd30) at buf_unmap+0x1a8 sys/kern/vfs_biomem.c:235 buf_map(fffffd80655399f0) at buf_map+0x1e6 sys/kern/vfs_biomem.c:117 buf_get(fffffd806822b2c8,58,4000) at buf_get+0x459 sys/kern/vfs_bio.c:1175 getblk(fffffd806822b2c8,58,4000,0,ffffffffffffffff) at getblk+0xfd sys/kern/vfs_bio.c:1044 bread_cluster(fffffd806822b2c8,58,4000,ffff80002f714708) at bread_cluster+0x59 bio_doread sys/kern/vfs_bio.c:430 [inline] bread_cluster(fffffd806822b2c8,58,4000,ffff80002f714708) at bread_cluster+0x59 sys/kern/vfs_bio.c:593 ffs_read(ffff80002f714770) at ffs_read+0x2c3 VOP_READ(fffffd806822b2c8,ffff80002f714808,0,fffffd807f7d7820) at VOP_READ+0xc3 sys/kern/vfs_vops.c:227 uvn_io(fffffd806d332a20,ffff80002f714918,1,202,0) at uvn_io+0x3bd uvn_get(fffffd806d332a20,160000,ffff80002f7149d8,ffff80002f7149a8,0,1,a247a8786b6cd0c3,0) at uvn_get+0x1e9 sys/uvm/uvm_vnode.c:1110 uvm_fault_lower(ffff80002f714b40,ffff80002f714b78,ffff80002f714ac0,2) at uvm_fault_lower+0x362 sys/uvm/uvm_fault.c:1284 uvm_fault(fffffd807f002898,ccd5ab96000,2,1) at uvm_fault+0x255 sys/uvm/uvm_fault.c:637 uvm_fault_wire(fffffd807f002898,ccd5aa36000,ccd5ae36000,1) at uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1602 uvm_map_pageable_wire(fffffd807f002898,fffffd806ba01830,0,263,ffffffff82723860,0) at uvm_map_pageable_wire+0x2dd sys/uvm/uvm_map.c:2159 sys_mlockall(ffff8000ffff59d0,ffff80002f714e50,ffff80002f714da0) at sys_mlockall+0x61 sys/uvm/uvm_mmap.c:899 syscall(ffff80002f714e50) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002f714e50) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcce24bd5bf0, count: -19 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002f714140 rbx 0xffffffff82c75cbf cpu_info_full_primary+0x2cbf rdx 0xffff800000e0e240 rcx 0xffff8000ffff59d0 rax 0xffffffff82c74ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xc99a70be1d09a494 r11 0xe05e4645f3bc16cf r12 0xffffffff82c75ac0 cpu_info_full_primary+0x2ac0 r13 0 r14 0 r15 0x1 rip 0xffffffff8226e7ac db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002f714130 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.3) tid=88941 pid=67776 tcnt=2 stat=onproc flags process=8000010 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff8000ffff54b0,0xffff8000ffff5230 process=0xffff8000ffff1ab8 user=0xffff80002f70f000, vmspace=0xfffffd807f002898 estcpu=36, cpticks=11, pctcpu=0.0, user=0, sys=11, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 80204 352481 20014 0 2 0x8000000 syz-executor.5 80204 66038 20014 0 3 0xc000080 fsleep syz-executor.5 67895 305527 47895 0 2 0x8000000 syz-executor.0 67895 163153 47895 0 3 0xc000080 fsleep syz-executor.0 67776 367414 93514 0 2 0x8000010 syz-executor.3 *67776 88941 93514 0 7 0xc000010 syz-executor.3 69620 280170 31712 0 2 0x8000000 syz-executor.6 69620 18399 31712 0 3 0xc000080 fsleep syz-executor.6 31712 200873 53685 0 2 0x8000482 syz-executor.6 63561 67983 28766 0 2 0x8000000 syz-executor.2 63561 509917 28766 0 2 0xc000000 syz-executor.2 63561 210220 28766 0 3 0xc000080 fsleep syz-executor.2 51962 460577 35336 0 2 0x8000000 syz-executor.1 51962 498064 35336 0 2 0xc000000 syz-executor.1 96860 182712 27641 0 2 0x8000000 syz-executor.4 96860 174258 27641 0 3 0xc000080 kqread syz-executor.4 35336 371239 53685 0 2 0x8000482 syz-executor.1 20014 335895 53685 0 2 0x8000482 syz-executor.5 27641 168582 53685 0 2 0x8000482 syz-executor.4 30067 48081 0 0 3 0x14280 nfsidl nfsio 45742 217838 0 0 3 0x14280 nfsidl nfsio 23048 300387 0 0 3 0x14280 nfsidl nfsio 58917 415151 0 0 3 0x14280 nfsidl nfsio 8826 474860 0 0 3 0x14280 nfsidl nfsio 59882 293139 0 0 3 0x14280 nfsidl nfsio 61730 339212 0 0 3 0x14280 nfsidl nfsio 37907 211972 0 0 3 0x14280 nfsidl nfsio 26365 18686 0 0 3 0x14280 nfsidl nfsio 1488 51702 0 0 3 0x14280 nfsidl nfsio 14144 144358 0 0 3 0x14280 nfsidl nfsio 16335 498029 0 0 3 0x14280 nfsidl nfsio 77531 88504 0 0 3 0x14280 nfsidl nfsio 60685 453508 0 0 3 0x14280 nfsidl nfsio 6674 88683 0 0 3 0x14280 nfsidl nfsio 82763 457874 0 0 3 0x14280 nfsidl nfsio 49973 200634 0 0 3 0x14280 nfsidl nfsio 40140 241367 0 0 3 0x14280 nfsidl nfsio 67756 760 0 0 3 0x14280 nfsidl nfsio 97603 510199 0 0 3 0x14280 nfsidl nfsio 72876 99725 0 0 3 0x14200 bored sosplice 50488 331915 0 0 3 0x14200 acct acct 630 93461 53685 0 2 0x8000482 syz-executor.7 93514 502552 53685 0 2 0x8000482 syz-executor.3 28766 181900 53685 0 2 0x8000482 syz-executor.2 47895 365698 53685 0 2 0x8000482 syz-executor.0 53685 128318 20764 0 3 0x1a000082 wait syz-fuzzer 53685 418491 20764 0 3 0x1e000082 thrsleep syz-fuzzer 53685 438030 20764 0 3 0x1e000082 wait syz-fuzzer 53685 143836 20764 0 3 0x1e000082 thrsleep syz-fuzzer 53685 12614 20764 0 3 0x1e000082 kqread syz-fuzzer 53685 497570 20764 0 3 0x1e000082 thrsleep syz-fuzzer 53685 322585 20764 0 3 0x1e000082 thrsleep syz-fuzzer 53685 2775 20764 0 3 0x1e000082 thrsleep syz-fuzzer 53685 360234 20764 0 3 0x1e000082 wait syz-fuzzer 53685 113139 20764 0 3 0x1e000082 wait syz-fuzzer 53685 110594 20764 0 3 0x1e000082 wait syz-fuzzer 53685 93586 20764 0 3 0x1e000082 thrsleep syz-fuzzer 53685 98792 20764 0 3 0x1e000082 wait syz-fuzzer 53685 210863 20764 0 3 0x1e000082 thrsleep syz-fuzzer 53685 229407 20764 0 3 0x1e000082 wait syz-fuzzer 53685 411002 20764 0 3 0x1e000082 thrsleep syz-fuzzer 53685 44329 20764 0 3 0x1e000082 wait syz-fuzzer 20764 213801 31618 0 3 0x810008a sigsusp ksh 31618 438508 80700 0 3 0x1800009a kqread sshd 51651 500337 1 0 3 0x18100083 ttyin getty 80700 231292 1 0 3 0x18000088 kqread sshd 85998 169899 53531 74 3 0x19100092 bpf pflogd 53531 242924 1 0 3 0x18000080 sbwait pflogd 65780 230575 68597 73 3 0x19100090 kqread syslogd 68597 328955 1 0 3 0x18100082 sbwait syslogd 76503 292165 1 0 3 0x18100080 kqread resolvd 15862 502683 0 0 3 0x14200 bored smr 72100 157349 0 0 2 0x14200 zerothread 52056 123824 0 0 3 0x14200 aiodoned aiodoned 52130 295223 0 0 3 0x14200 syncer update 30462 46776 0 0 3 0x14200 cleaner cleaner 64955 103459 0 0 3 0x14200 reaper reaper 48623 245228 0 0 3 0x14200 pgdaemon pagedaemon 6033 338381 0 0 3 0x14200 bored viomb 7942 93381 0 0 3 0x40014200 acpi0 acpi0 27763 411344 0 0 7 0x40014200 idle1 33711 123815 0 0 3 0x14200 bored softnet3 90190 382846 0 0 3 0x14200 bored softnet2 83031 430368 0 0 3 0x14200 bored softnet1 47860 140960 0 0 3 0x14200 bored softnet0 34012 509367 0 0 3 0x14200 bored systqmp 53688 13332 0 0 3 0x14200 bored systq 17041 372816 0 0 3 0x14200 tmoslp softclockmp 58621 486531 0 0 2 0x40014200 softclock 58511 59617 0 0 3 0x40014200 idle0 1 99581 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 67776 (syz-executor.3) thread 0xffff8000ffff59d0 (88941) exclusive rrwlock inode r = 0 (0xfffffd80695a9c48) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32a sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8e sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 uvn_io+0x32c sys/uvm/uvm_vnode.c:1263 #6 uvn_get+0x1e9 sys/uvm/uvm_vnode.c:1110 #7 uvm_fault_lower+0x362 sys/uvm/uvm_fault.c:1284 #8 uvm_fault+0x255 sys/uvm/uvm_fault.c:637 #9 uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1602 #10 uvm_map_pageable_wire+0x2dd sys/uvm/uvm_map.c:2159 #11 sys_mlockall+0x61 sys/uvm/uvm_mmap.c:899 #12 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #12 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82db7898) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 syscall+0x83b mi_syscall sys/sys/syscall_mi.h:180 [inline] #1 syscall+0x83b sys/arch/amd64/amd64/trap.c:577 #2 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10185 6493K 6683K 166960K 11486 0 pcb 17 13K 13K 166960K 98 0 rtable 218 6K 7K 166960K 620 0 pf 32 9K 10K 166960K 66 0 ifaddr 42 14K 15K 166960K 80 0 ifgroup 55 2K 2K 166960K 96 0 sysctl 3 0K 1K 166960K 4 0 counters 64 36K 36K 166960K 86 0 ioctlops 0 0K 4K 166960K 1517 0 iov 0 0K 16K 166960K 53 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1369 86K 87K 166960K 1719 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 15 0 VM map 2 1K 1K 166960K 2 0 sem 14 1K 1K 166960K 24 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 18 65K 97K 166960K 879 0 sigio 0 0K 0K 166960K 15 0 proc 65 67K 128K 166960K 738 0 subproc 104 6K 6K 166960K 169 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 115 0 in_multi 81 6K 7K 166960K 211 0 ether_multi 1 0K 0K 166960K 5 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 543 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 321 130K 130K 166960K 10118 0 UVM aobj 41 2K 2K 166960K 52 0 pinsyscall 36 72K 108K 166960K 2214 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 45 0 NDP 14 0K 2K 166960K 53 0 temp 75 6815K 6882K 166960K 20907 0 kqueue 6 10K 24K 166960K 142 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 96 0 95 1 0 1 1 0 8 0 rtentry 112 205 0 105 4 0 4 4 0 8 0 unpcb 144 545 0 533 2 1 1 2 0 8 0 syncache 336 8 0 8 4 3 1 1 0 8 1 tcpqe 32 29 0 29 2 2 0 1 0 8 0 tcpcb 808 218 0 210 3 2 1 2 0 8 0 arp 120 36 0 14 1 0 1 1 0 8 0 inpcb 392 875 0 863 6 4 2 5 0 8 0 nd6 136 47 0 29 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 kcovpl 48 13 0 5 1 0 1 1 0 8 0 ppxss 1168 2 0 2 2 2 0 1 0 8 0 pffrag 232 3 0 0 1 0 1 1 0 482 0 pffrnode 88 3 0 0 1 0 1 1 0 8 0 pffrent 40 4 0 1 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 78 0 37 1 0 1 1 0 8 0 pfstkey 128 78 0 37 2 0 2 2 0 8 0 pfstate 376 78 0 37 6 1 5 5 0 8 0 pfrule 1344 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 256 810 0 412 32 4 28 28 0 8 2 art_table 32 811 0 412 4 0 4 4 0 8 0 art_node 16 202 0 114 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 9 2 1 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 17 0 5 1 0 1 1 0 8 0 shmpl 112 49 0 11 3 1 2 2 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2812 0 1288 97 1 96 97 0 8 0 ffsino 272 2812 0 1288 103 0 103 103 0 8 0 nchpl 144 4223 0 2478 67 0 67 67 0 8 0 uvmvnodes 80 3069 0 0 63 0 63 63 0 8 0 vnodes 216 3069 0 0 171 0 171 171 0 8 0 namei 1024 14064 0 14064 4 3 1 2 0 8 1 percpumem 16 57 0 11 1 0 1 1 0 8 0 vcpupl 2048 7 0 1 1 0 1 1 0 8 0 vmpool 696 8 0 2 1 0 1 1 0 8 0 kstatmem 264 46 0 22 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 18329 0 18329 12 11 1 8 1 8 1 plimitpl 152 135 0 118 1 0 1 1 0 8 0 sigapl 424 1215 0 1147 10 2 8 9 0 8 0 futexpl 64 11307 0 11303 1 0 1 1 0 8 0 knotepl 120 363 0 0 11 0 11 11 0 8 0 kqueuepl 216 237 0 231 1 0 1 1 0 8 0 pipepl 320 255 0 227 3 0 3 3 0 8 0 fdescpl 496 1175 0 1147 6 2 4 5 0 8 0 filepl 152 6384 0 6143 13 2 11 12 0 8 0 lockfpl 104 196 0 195 1 0 1 1 0 8 0 lockfspl 48 78 0 77 1 0 1 1 0 8 0 sessionpl 144 29 0 13 1 0 1 1 0 8 0 pgrppl 48 37 0 21 1 0 1 1 0 8 0 ucredpl 104 870 0 858 1 0 1 1 0 8 0 zombiepl 144 1148 0 1147 3 2 1 1 0 8 0 processpl 1136 1215 0 1147 6 1 5 6 0 8 0 procpl 656 2098 0 2006 10 1 9 9 0 8 0 srpgc 96 4 0 4 2 2 0 1 0 8 0 sosppl 168 24 0 23 2 1 1 1 0 8 0 sockpl 664 1532 0 1509 9 5 4 6 0 8 1 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 6 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 11 0 0 2 0 2 2 0 8 0 mcl4k 4096 15 0 0 2 0 2 2 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 376 0 0 47 0 47 47 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 389 0 0 25 0 25 25 0 8 0 bufpl 280 6933 0 677 447 0 447 447 0 8 0 bufpl: pool(0xffffffff82dd4378:bufpl): page inconsistency: page 0x0; at page head addr 0xfffffd80658bdf90 (p 0xfffffd80658bd000) anonpl 24 310426 0 300769 106 34 72 78 0 186 11 amapchunkpl 152 32320 0 31341 52 14 38 38 0 158 0 amappl16 200 8943 0 8813 43 23 20 29 0 8 6 amappl15 192 14 0 14 1 1 0 1 0 8 0 amappl14 184 185 0 174 2 1 1 2 0 8 0 amappl13 176 30 0 30 1 1 0 1 0 8 0 amappl12 168 1955 0 1924 4 2 2 3 0 8 0 amappl11 160 64 0 56 1 0 1 1 0 8 0 amappl10 152 52 0 43 1 0 1 1 0 8 0 amappl9 144 225 0 224 3 2 1 1 0 8 0 amappl8 136 208 0 148 3 0 3 3 0 8 0 amappl7 128 56 0 42 1 0 1 1 0 8 0 amappl6 120 401 0 388 2 1 1 2 0 8 0 amappl5 112 226 0 212 1 0 1 1 0 8 0 amappl4 104 623 0 584 3 1 2 3 0 8 0 amappl3 96 6557 0 6462 3 0 3 3 0 8 0 amappl2 88 1625 0 1561 4 2 2 4 0 8 0 amappl1 80 12949 0 12486 24 12 12 23 0 8 0 amappl 88 9435 0 9221 6 0 6 6 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 72 51 0 11 1 0 1 1 0 8 0 uaddrrnd 24 1183 0 1149 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1183 0 1149 1 0 1 1 0 8 0 vmmpekpl 168 12999 0 12935 4 0 4 4 0 8 0 vmmpepl 168 94547 0 92636 144 48 96 120 0 357 3 vmsppl 440 1182 0 1149 6 2 4 5 0 8 0 rwobjpl 56 34577 0 30395 69 7 62 62 0 8 1 pdppl 4096 2373 0 2304 148 77 71 85 0 8 2 pvpl 32 48451 0 0 392 1 391 391 0 265 0 pmappl 248 1182 0 1149 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 479 0 94 12 0 12 12 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82950700) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8290a0dd,ffffffff828aa947,eb,ffffffff82890183) at __assert+0x29 sys/kern/subr_prf.c:157 buf_unmap(fffffd80658bdd30) at buf_unmap+0x1a8 sys/kern/vfs_biomem.c:235 buf_map(fffffd80655399f0) at buf_map+0x1e6 sys/kern/vfs_biomem.c:117 buf_get(fffffd806822b2c8,58,4000) at buf_get+0x459 sys/kern/vfs_bio.c:1175 getblk(fffffd806822b2c8,58,4000,0,ffffffffffffffff) at getblk+0xfd sys/kern/vfs_bio.c:1044 bread_cluster(fffffd806822b2c8,58,4000,ffff80002f714708) at bread_cluster+0x59 bio_doread sys/kern/vfs_bio.c:430 [inline] bread_cluster(fffffd806822b2c8,58,4000,ffff80002f714708) at bread_cluster+0x59 sys/kern/vfs_bio.c:593 ffs_read(ffff80002f714770) at ffs_read+0x2c3 VOP_READ(fffffd806822b2c8,ffff80002f714808,0,fffffd807f7d7820) at VOP_READ+0xc3 sys/kern/vfs_vops.c:227 uvn_io(fffffd806d332a20,ffff80002f714918,1,202,0) at uvn_io+0x3bd uvn_get(fffffd806d332a20,160000,ffff80002f7149d8,ffff80002f7149a8,0,1,a247a8786b6cd0c3,0) at uvn_get+0x1e9 sys/uvm/uvm_vnode.c:1110 uvm_fault_lower(ffff80002f714b40,ffff80002f714b78,ffff80002f714ac0,2) at uvm_fault_lower+0x362 sys/uvm/uvm_fault.c:1284 uvm_fault(fffffd807f002898,ccd5ab96000,2,1) at uvm_fault+0x255 sys/uvm/uvm_fault.c:637 uvm_fault_wire(fffffd807f002898,ccd5aa36000,ccd5ae36000,1) at uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1602 uvm_map_pageable_wire(fffffd807f002898,fffffd806ba01830,0,263,ffffffff82723860,0) at uvm_map_pageable_wire+0x2dd sys/uvm/uvm_map.c:2159 sys_mlockall(ffff8000ffff59d0,ffff80002f714e50,ffff80002f714da0) at sys_mlockall+0x61 sys/uvm/uvm_mmap.c:899 syscall(ffff80002f714e50) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002f714e50) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcce24bd5bf0, count: -19 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x2f1 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800029cebff0) at sched_idle+0x41d sys/kern/kern_sched.c:183 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x2f1 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800029cebff0) at sched_idle+0x41d sys/kern/kern_sched.c:183 end trace frame: 0x0, count: -5