panic: kernel diagnostic assertion "len >= 0 && !M_READONLY(m)" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/uipc_mbuf.c", line 1384 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *100911 62272 0 0 0x4000000 0K syz-executor.0 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82577da7) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ebc34,ffffffff8255f654,568,ffffffff8258dc04) at __assert+0x25 sys/kern/subr_prf.c:161 m_align(fffffd807ea35a00,ffffffd7) at m_align+0x1a0 sys/kern/uipc_mbuf.c:1385 bpf_movein(ffff80002e44d1f0,ffff800000c1bc00,ffff80002e44cf58,ffff80002e44ce58) at bpf_movein+0x25e sys/net/bpf.c:228 bpfwrite(51700,ffff80002e44d1f0,1) at bpfwrite+0x169 sys/net/bpf.c:644 spec_write(ffff80002e44d050) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806931ddc0,ffff80002e44d1f0,1,fffffd807f7d87e0) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 vn_write(fffffd8068a51568,ffff80002e44d1f0,1) at vn_write+0x1a1 sys/kern/vfs_vnops.c:414 dofilewritev(ffff800029d21cf0,3,ffff80002e44d1f0,1,ffff80002e44d2f0) at dofilewritev+0x19c sys/kern/sys_generic.c:381 sys_pad_pwrite(ffff800029d21cf0,ffff80002e44d298,ffff80002e44d2f0) at sys_pad_pwrite+0x92 sys_pwrite sys/kern/vfs_syscalls.c:3354 [inline] sys_pad_pwrite(ffff800029d21cf0,ffff80002e44d298,ffff80002e44d2f0) at sys_pad_pwrite+0x92 sys/kern/vfs_syscalls.c:3426 syscall(ffff80002e44d360) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e44d360) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x19ac57947e0, count: 2 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 "len >= 0 && !M_READONLY(m)" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/uipc_mbuf.c", line 1384 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82577da7) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ebc34,ffffffff8255f654,568,ffffffff8258dc04) at __assert+0x25 sys/kern/subr_prf.c:161 m_align(fffffd807ea35a00,ffffffd7) at m_align+0x1a0 sys/kern/uipc_mbuf.c:1385 bpf_movein(ffff80002e44d1f0,ffff800000c1bc00,ffff80002e44cf58,ffff80002e44ce58) at bpf_movein+0x25e sys/net/bpf.c:228 bpfwrite(51700,ffff80002e44d1f0,1) at bpfwrite+0x169 sys/net/bpf.c:644 spec_write(ffff80002e44d050) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806931ddc0,ffff80002e44d1f0,1,fffffd807f7d87e0) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 vn_write(fffffd8068a51568,ffff80002e44d1f0,1) at vn_write+0x1a1 sys/kern/vfs_vnops.c:414 dofilewritev(ffff800029d21cf0,3,ffff80002e44d1f0,1,ffff80002e44d2f0) at dofilewritev+0x19c sys/kern/sys_generic.c:381 sys_pad_pwrite(ffff800029d21cf0,ffff80002e44d298,ffff80002e44d2f0) at sys_pad_pwrite+0x92 sys_pwrite sys/kern/vfs_syscalls.c:3354 [inline] sys_pad_pwrite(ffff800029d21cf0,ffff80002e44d298,ffff80002e44d2f0) at sys_pad_pwrite+0x92 sys/kern/vfs_syscalls.c:3426 syscall(ffff80002e44d360) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e44d360) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x19ac57947e0, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002e44cc70 rbx 0xffffffff82966bff cpu_info_full_primary+0x2bff rdx 0xffff800000bd8600 rcx 0 rax 0xffff800029d21cf0 r8 0 r9 0x8080808080808080 r10 0xfb3e733dc48c627 r11 0x9e7c4795b4a6bf05 r12 0xffffffff82966a00 cpu_info_full_primary+0x2a00 r13 0 r14 0 r15 0x1 rip 0xffffffff8228cc28 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002e44cc60 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.0) pid=100911 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=72, nice=20 forw=0xffffffffffffffff, list=0xffff800029d20010,0xffff800029d217c0 process=0xffff80002e3dc020 user=0xffff80002e448000, vmspace=0xfffffd80660f4750 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 45028 113730 10808 0 2 0 syz-executor.4 45028 312306 10808 0 3 0x4000080 fsleep syz-executor.4 45497 514773 6674 0 2 0 syz-executor.3 45497 383631 6674 0 3 0x4000080 fsleep syz-executor.3 45497 14010 6674 0 3 0x4000080 fsleep syz-executor.3 62272 269857 16111 0 2 0 syz-executor.0 *62272 100911 16111 0 7 0x4000000 syz-executor.0 81474 227162 66392 60929 3 0x90 nanoslp syz-executor.7 81474 323535 66392 60929 3 0x4000090 fsleep syz-executor.7 93857 79708 90542 0 2 0 syz-executor.6 93857 45609 90542 0 3 0x4000080 fsleep syz-executor.6 93857 264374 90542 0 3 0x4000080 fsleep syz-executor.6 43323 108625 42337 0 2 0 syz-executor.2 43323 100058 42337 0 3 0x4000080 netio syz-executor.2 43323 16258 42337 0 3 0x4000000 inode syz-executor.2 42094 361706 55815 0 2 0x482 syz-executor.5 94763 429667 55815 0 2 0x2 syz-executor.1 16111 230983 55815 0 3 0x82 nanoslp syz-executor.0 30771 76302 1 0 3 0x100083 ttyin getty 66392 69922 55815 0 2 0x482 syz-executor.7 10808 436328 55815 0 2 0x482 syz-executor.4 72841 1955 0 0 3 0x14280 nfsidl nfsio 86980 428838 0 0 3 0x14280 nfsidl nfsio 939 368613 0 0 3 0x14280 nfsidl nfsio 11825 116001 0 0 3 0x14280 nfsidl nfsio 43319 90002 0 0 3 0x14280 nfsidl nfsio 83841 337233 0 0 3 0x14280 nfsidl nfsio 32099 196598 0 0 3 0x14280 nfsidl nfsio 3500 467547 0 0 3 0x14280 nfsidl nfsio 44307 166903 0 0 3 0x14280 nfsidl nfsio 77424 226691 0 0 3 0x14280 nfsidl nfsio 76200 438649 0 0 3 0x14280 nfsidl nfsio 39833 337337 0 0 3 0x14280 nfsidl nfsio 27863 240473 0 0 3 0x14280 nfsidl nfsio 90609 330702 0 0 3 0x14280 nfsidl nfsio 75419 121052 0 0 3 0x14280 nfsidl nfsio 99744 487365 0 0 3 0x14280 nfsidl nfsio 50828 341029 0 0 3 0x14280 nfsidl nfsio 59581 482266 0 0 3 0x14280 nfsidl nfsio 94872 172934 0 0 3 0x14280 nfsidl nfsio 72668 456901 0 0 3 0x14280 nfsidl nfsio 18623 440213 0 0 3 0x14200 bored sosplice 90542 201978 55815 0 2 0x482 syz-executor.6 6674 336454 55815 0 2 0x482 syz-executor.3 42337 384722 55815 0 3 0x82 nanoslp syz-executor.2 55815 500110 99852 0 3 0x82 thrsleep syz-fuzzer 55815 187990 99852 0 3 0x4000082 thrsleep syz-fuzzer 55815 111799 99852 0 3 0x4000082 thrsleep syz-fuzzer 55815 475976 99852 0 3 0x4000082 kqread syz-fuzzer 55815 259382 99852 0 3 0x4000082 thrsleep syz-fuzzer 55815 336070 99852 0 3 0x4000082 thrsleep syz-fuzzer 55815 201134 99852 0 3 0x4000082 thrsleep syz-fuzzer 55815 470 99852 0 3 0x4000082 thrsleep syz-fuzzer 55815 425919 99852 0 3 0x4000082 thrsleep syz-fuzzer 99852 390919 41618 0 3 0x10008a sigsusp ksh 41618 444151 82531 0 3 0x9a kqread sshd 82531 324333 1 0 3 0x88 kqread sshd 20060 126061 45501 74 3 0x100092 bpf pflogd 45501 157817 1 0 3 0x80 netio pflogd 50255 84601 4825 73 3 0x100090 kqread syslogd 4825 91582 1 0 3 0x100082 netio syslogd 95923 219323 1 0 3 0x100080 kqread resolvd 27303 342973 49251 77 3 0x100092 kqread dhcpleased 83647 487076 49251 77 3 0x100092 kqread dhcpleased 49251 239104 1 0 3 0x80 kqread dhcpleased 96770 51469 0 0 3 0x14200 bored smr 7745 252609 0 0 2 0x14200 zerothread 70024 353009 0 0 3 0x14200 aiodoned aiodoned 92568 297005 0 0 3 0x14200 syncer update 6442 166025 0 0 3 0x14200 cleaner cleaner 32548 43306 0 0 3 0x14200 reaper reaper 94717 252254 0 0 3 0x14200 pgdaemon pagedaemon 20177 239469 0 0 3 0x14200 bored viomb 69540 325662 0 0 3 0x40014200 acpi0 acpi0 13370 453423 0 0 7 0x40014200 idle1 73219 445935 0 0 3 0x14200 bored softnet 85172 331939 0 0 3 0x14200 bored systqmp 55962 261637 0 0 3 0x14200 bored systq 97969 366075 0 0 2 0x40014200 softclock 42292 174232 0 0 3 0x40014200 idle0 1 349063 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 62272 (syz-executor.0) thread 0xffff800029d21cf0 (100911) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82a7ab80) #0 witness_lock+0x44d #1 vn_write+0x42 sys/kern/vfs_vnops.c:399 #2 dofilewritev+0x19c sys/kern/sys_generic.c:381 #3 sys_pad_pwrite+0x92 sys_pwrite sys/kern/vfs_syscalls.c:3354 [inline] #3 sys_pad_pwrite+0x92 sys/kern/vfs_syscalls.c:3426 #4 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #4 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #5 Xsyscall+0x128 Process 43323 (syz-executor.2) thread 0xffff8000ffff5a40 (100058) exclusive rrwlock inode r = 0 (0xfffffd806ea3c5f8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347 #6 ufs_lookup+0x122c sys/ufs/ufs/ufs_lookup.c:582 #7 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #8 vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:561 #9 namei+0x36a sys/kern/vfs_lookup.c:245 #10 vn_open+0x105 sys/kern/vfs_vnops.c:146 #11 vndioctl+0xa07 sys/dev/vnd.c:459 #12 VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 #13 vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 #14 sys_ioctl+0x4a2 #15 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #15 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #16 Xsyscall+0x128 Process 43323 (syz-executor.2) thread 0xffff800029d20550 (16258) exclusive rrwlock inode r = 0 (0xfffffd807329dd60) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 dorenameat+0x100 sys/kern/vfs_syscalls.c:2991 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10227 6719K 7099K 78643K 20167 0 pcb 13 18K 22K 78643K 1052 0 rtable 237 20K 22K 78643K 1054 0 ifaddr 98 21K 23K 78643K 604 0 sysctl 2 0K 0K 78643K 2 0 counters 56 35K 36K 78643K 174 0 ioctlops 0 0K 4K 78643K 2329 0 iov 0 0K 20K 78643K 330 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1337 83K 84K 78643K 4207 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 62 0 VM map 2 1K 1K 78643K 2 0 sem 25 3K 5K 78643K 347 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 16 57K 89K 78643K 5627 0 sigio 0 0K 0K 78643K 21 0 proc 73 87K 111K 78643K 1025 0 subproc 104 6K 6K 78643K 225 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 191 0 in_multi 88 5K 6K 78643K 358 0 ether_multi 1 0K 0K 78643K 73 0 mrt 1 0K 0K 78643K 49 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 229 1023K 1023K 78643K 229 0 exec 0 0K 2K 78643K 1179 0 pfkey data 0 0K 0K 78643K 5 0 tdb 3 0K 0K 78643K 3 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 424 383K 394K 78643K 71468 0 UVM aobj 131 8K 8K 78643K 137 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 346 0 NDP 13 0K 2K 78643K 108 0 temp 148 4728K 8797K 78643K 45821 0 kqueue 12 18K 32K 78643K 405 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 353 0 350 6 5 1 3 0 8 0 rtentry 112 279 0 185 4 0 4 4 0 8 0 unpcb 136 3598 0 3581 37 36 1 6 0 8 0 syncache 296 18 0 18 6 6 0 1 0 8 0 tcpqe 32 80 0 80 6 6 0 1 0 8 0 tcpcb 736 7242 0 7233 166 160 6 27 0 8 5 arp 120 39 0 24 1 0 1 1 0 8 0 inpcb 304 10602 0 10593 110 104 6 13 0 8 5 rttmr 72 13 0 13 3 3 0 1 0 8 0 nd6 48 63 0 36 1 0 1 1 0 8 0 pkpcb 40 31 0 31 7 7 0 1 0 8 0 kcovpl 48 17 0 9 1 0 1 1 0 8 0 ppxss 1248 28 0 28 7 7 0 1 0 8 0 pfstscr 40 10 0 10 1 1 0 1 0 8 0 pffrag 232 8 0 7 3 2 1 1 0 482 0 pffrnode 88 8 0 7 3 2 1 1 0 8 0 pffrent 40 27 0 26 3 2 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 pfrke_plain 168 2 0 2 1 1 0 1 0 8 0 pfrktable 1344 97 0 87 4 3 1 2 0 8 0 pftag 88 15 0 12 1 0 1 1 0 8 0 pfstitem 24 38 0 36 1 0 1 1 0 8 0 pfstkey 112 46 0 44 1 0 1 1 0 8 0 pfstate 320 41 0 39 3 2 1 3 0 8 0 pfrule 1360 158 0 103 6 1 5 5 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1212 0 764 37 9 28 29 0 8 0 art_table 32 1213 0 764 4 0 4 4 0 8 0 art_node 16 273 0 189 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 2 1 0 1 1 0 8 0 semapl 112 335 0 312 1 0 1 1 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 8731 0 7287 91 0 91 91 0 8 0 ffsino 272 8731 0 7287 97 0 97 97 0 8 0 nchpl 144 15879 0 14253 63 0 63 63 0 8 0 rtmask 32 4 0 4 1 1 0 1 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 53587 0 53585 5 4 1 2 0 8 0 percpumem 16 99 0 59 1 0 1 1 0 8 0 vcpupl 2048 86 0 0 11 0 11 11 0 8 0 vmpool 560 151 0 65 9 2 7 7 0 8 0 pfiaddrpl 120 46 0 27 2 1 1 1 0 8 0 scxspl 216 55234 0 55234 17 16 1 8 0 8 1 plimitpl 152 467 0 451 1 0 1 1 0 8 0 sigapl 424 5936 0 5872 8 0 8 8 0 8 0 futexpl 64 52356 0 52350 3 2 1 1 0 8 0 knotepl 120 319 0 0 7 1 6 6 0 8 0 kqueuepl 216 1406 0 1398 26 25 1 8 0 8 0 pipepl 336 1197 0 1169 42 39 3 9 0 8 0 fdescpl 496 5900 0 5871 5 1 4 5 0 8 0 filepl 152 40366 0 40122 94 82 12 21 0 8 1 lockfpl 104 1702 0 1700 6 5 1 2 0 8 0 lockfspl 48 519 0 517 1 0 1 1 0 8 0 sessionpl 144 36 0 19 1 0 1 1 0 8 0 pgrppl 48 44 0 27 1 0 1 1 0 8 0 ucredpl 96 4415 0 4401 1 0 1 1 0 8 0 zombiepl 144 5872 0 5871 1 0 1 1 0 8 0 processpl 1064 5936 0 5871 5 0 5 5 0 8 0 procpl 672 14961 0 14879 17 9 8 9 0 8 1 srpgc 96 18 0 18 2 2 0 1 0 8 0 sosppl 168 43 0 43 5 4 1 1 0 8 1 sockpl 480 14651 0 14622 296 287 9 34 0 8 5 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 8 0 0 1 0 1 1 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 6 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 242 0 0 19 0 19 19 0 8 0 mtagpl 96 461 0 0 10 0 10 10 0 8 0 mbufpl 256 842 0 0 46 2 44 45 0 8 0 bufpl 288 12808 0 6472 453 0 453 453 0 8 0 anonpl 24 1607322 0 1586278 221 80 141 159 0 186 0 amapchunkpl 152 174629 0 173745 98 62 36 48 0 158 0 amappl16 200 14958 0 14255 77 36 41 49 0 8 1 amappl15 192 1864 0 1855 1 0 1 1 0 8 0 amappl14 184 1189 0 1184 1 0 1 1 0 8 0 amappl13 176 735 0 734 1 0 1 1 0 8 0 amappl12 168 687 0 682 1 0 1 1 0 8 0 amappl11 160 59 0 44 1 0 1 1 0 8 0 amappl10 152 1469 0 1460 1 0 1 1 0 8 0 amappl9 144 903 0 898 1 0 1 1 0 8 0 amappl8 136 1413 0 1322 4 0 4 4 0 8 0 amappl7 128 679 0 667 1 0 1 1 0 8 0 amappl6 120 660 0 634 2 0 2 2 0 8 0 amappl5 112 6008 0 5983 1 0 1 1 0 8 0 amappl4 104 2275 0 2240 4 3 1 2 0 8 0 amappl3 96 1161 0 1149 1 0 1 1 0 8 0 amappl2 88 1461 0 1411 3 1 2 3 0 8 0 amappl1 80 106481 0 105882 25 11 14 19 0 8 0 amappl 88 70683 0 70401 9 2 7 8 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 72 136 0 6 3 0 3 3 0 8 0 uaddrrnd 24 6051 0 5936 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 6051 0 5936 1 0 1 1 0 8 0 vmmpekpl 168 42633 0 42551 4 0 4 4 0 8 0 vmmpepl 168 528019 0 525141 212 77 135 146 0 357 5 vmsppl 368 6050 0 5936 12 1 11 11 0 8 0 rwobjpl 56 131675 0 123856 112 0 112 112 0 8 1 pdppl 4096 12109 0 11958 422 269 153 155 0 8 2 pvpl 32 2895754 0 2871285 415 196 219 280 0 265 0 pmappl 248 6050 0 5936 9 1 8 8 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 1423 0 487 28 0 28 28 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82577da7) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ebc34,ffffffff8255f654,568,ffffffff8258dc04) at __assert+0x25 sys/kern/subr_prf.c:161 m_align(fffffd807ea35a00,ffffffd7) at m_align+0x1a0 sys/kern/uipc_mbuf.c:1385 bpf_movein(ffff80002e44d1f0,ffff800000c1bc00,ffff80002e44cf58,ffff80002e44ce58) at bpf_movein+0x25e sys/net/bpf.c:228 bpfwrite(51700,ffff80002e44d1f0,1) at bpfwrite+0x169 sys/net/bpf.c:644 spec_write(ffff80002e44d050) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806931ddc0,ffff80002e44d1f0,1,fffffd807f7d87e0) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 vn_write(fffffd8068a51568,ffff80002e44d1f0,1) at vn_write+0x1a1 sys/kern/vfs_vnops.c:414 dofilewritev(ffff800029d21cf0,3,ffff80002e44d1f0,1,ffff80002e44d2f0) at dofilewritev+0x19c sys/kern/sys_generic.c:381 sys_pad_pwrite(ffff800029d21cf0,ffff80002e44d298,ffff80002e44d2f0) at sys_pad_pwrite+0x92 sys_pwrite sys/kern/vfs_syscalls.c:3354 [inline] sys_pad_pwrite(ffff800029d21cf0,ffff80002e44d298,ffff80002e44d2f0) at sys_pad_pwrite+0x92 sys/kern/vfs_syscalls.c:3426 syscall(ffff80002e44d360) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e44d360) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x19ac57947e0, count: -13 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a 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+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020ce8ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a 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+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020ce8ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5