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 * 65346 15584 0 0 0x4000000 0K syz-executor.5 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8257162d) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825e9dfe,ffffffff8255a0b2,568,ffffffff8258855b) at __assert+0x25 sys/kern/subr_prf.c:161 m_align(fffffd806176bd00,ffffffef) at m_align+0x1a0 sys/kern/uipc_mbuf.c:1385 bpf_movein(ffff800027ffb130,ffff800000d38800,ffff800027ffae98,ffff800027ffad98) at bpf_movein+0x25e sys/net/bpf.c:228 bpfwrite(31700,ffff800027ffb130,1) at bpfwrite+0x169 sys/net/bpf.c:644 spec_write(ffff800027ffaf90) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd807b2c51c8,ffff800027ffb130,1,fffffd807f7d84e0) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 vn_write(fffffd806779ad18,ffff800027ffb130,1) at vn_write+0x1a1 sys/kern/vfs_vnops.c:414 dofilewritev(ffff8000ffff5a40,3,ffff800027ffb130,1,ffff800027ffb230) at dofilewritev+0x19c sys/kern/sys_generic.c:381 sys_pad_pwrite(ffff8000ffff5a40,ffff800027ffb1d8,ffff800027ffb230) at sys_pad_pwrite+0x92 sys_pwrite sys/kern/vfs_syscalls.c:3354 [inline] sys_pad_pwrite(ffff8000ffff5a40,ffff800027ffb1d8,ffff800027ffb230) at sys_pad_pwrite+0x92 sys/kern/vfs_syscalls.c:3426 syscall(ffff800027ffb2a0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027ffb2a0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9da9a60dd40, 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(ffffffff8257162d) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825e9dfe,ffffffff8255a0b2,568,ffffffff8258855b) at __assert+0x25 sys/kern/subr_prf.c:161 m_align(fffffd806176bd00,ffffffef) at m_align+0x1a0 sys/kern/uipc_mbuf.c:1385 bpf_movein(ffff800027ffb130,ffff800000d38800,ffff800027ffae98,ffff800027ffad98) at bpf_movein+0x25e sys/net/bpf.c:228 bpfwrite(31700,ffff800027ffb130,1) at bpfwrite+0x169 sys/net/bpf.c:644 spec_write(ffff800027ffaf90) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd807b2c51c8,ffff800027ffb130,1,fffffd807f7d84e0) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 vn_write(fffffd806779ad18,ffff800027ffb130,1) at vn_write+0x1a1 sys/kern/vfs_vnops.c:414 dofilewritev(ffff8000ffff5a40,3,ffff800027ffb130,1,ffff800027ffb230) at dofilewritev+0x19c sys/kern/sys_generic.c:381 sys_pad_pwrite(ffff8000ffff5a40,ffff800027ffb1d8,ffff800027ffb230) at sys_pad_pwrite+0x92 sys_pwrite sys/kern/vfs_syscalls.c:3354 [inline] sys_pad_pwrite(ffff8000ffff5a40,ffff800027ffb1d8,ffff800027ffb230) at sys_pad_pwrite+0x92 sys/kern/vfs_syscalls.c:3426 syscall(ffff800027ffb2a0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027ffb2a0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9da9a60dd40, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800027ffabb0 rbx 0xffffffff8291abff cpu_info_full_primary+0x2bff rdx 0xffff800000de5e40 rcx 0 rax 0xffff8000ffff5a40 r8 0 r9 0x8080808080808080 r10 0xf678658cd527b763 r11 0xdd0aad1ff53730f3 r12 0xffffffff8291aa00 cpu_info_full_primary+0x2a00 r13 0 r14 0 r15 0x1 rip 0xffffffff81f80a58 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800027ffaba0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.5) pid=65346 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff4000,0xffffffff82b44830 process=0xffff8000280d1910 user=0xffff800027ff6000, vmspace=0xfffffd805b1d9a28 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 15584 108244 69681 0 2 0 syz-executor.5 *15584 65346 69681 0 7 0x4000000 syz-executor.5 37908 293510 40084 0 2 0 syz-executor.7 37908 327231 40084 0 3 0x4000080 fsleep syz-executor.7 37908 5977 40084 0 3 0x4000080 fsleep syz-executor.7 33868 81398 27607 0 2 0 syz-executor.1 33868 280154 27607 0 3 0x4000080 fsleep syz-executor.1 17353 233835 770 0 2 0 syz-executor.2 17353 422616 770 0 3 0x4000080 fsleep syz-executor.2 17353 243947 770 0 3 0x4000080 fsleep syz-executor.2 17353 338848 770 0 3 0x4000080 fsleep syz-executor.2 30430 267275 74876 0 2 0 syz-executor.0 42500 307290 80531 0 2 0 syz-executor.3 42500 248508 80531 0 3 0x4000080 fsleep syz-executor.3 770 62574 64098 0 3 0x82 nanoslp syz-executor.2 31100 497909 64098 0 2 0x2 syz-executor.4 89442 45571 0 0 3 0x14200 acct acct 74876 330145 64098 0 3 0x82 nanoslp syz-executor.0 27607 326033 64098 0 3 0x82 nanoslp syz-executor.1 40084 405150 64098 0 2 0x482 syz-executor.7 7768 131747 64098 0 2 0x482 syz-executor.6 55753 428160 1 0 3 0x100083 ttyin getty 80531 176310 64098 0 2 0x482 syz-executor.3 69681 350758 64098 0 3 0x82 nanoslp syz-executor.5 18175 213631 0 0 3 0x14200 bored sosplice 45131 239169 0 0 3 0x14280 nfsidl nfsio 13265 102382 0 0 3 0x14280 nfsidl nfsio 40203 284633 0 0 3 0x14280 nfsidl nfsio 42630 376412 0 0 3 0x14280 nfsidl nfsio 39408 457039 0 0 3 0x14280 nfsidl nfsio 89117 156196 0 0 3 0x14280 nfsidl nfsio 99236 397792 0 0 3 0x14280 nfsidl nfsio 44432 14125 0 0 3 0x14280 nfsidl nfsio 19427 334083 0 0 3 0x14280 nfsidl nfsio 64009 105943 0 0 3 0x14280 nfsidl nfsio 68756 523170 0 0 3 0x14280 nfsidl nfsio 75195 113728 0 0 3 0x14280 nfsidl nfsio 57004 34033 0 0 3 0x14280 nfsidl nfsio 30269 411937 0 0 3 0x14280 nfsidl nfsio 36247 115872 0 0 3 0x14280 nfsidl nfsio 84657 516263 0 0 3 0x14280 nfsidl nfsio 53575 380267 0 0 3 0x14280 nfsidl nfsio 28867 180198 0 0 3 0x14280 nfsidl nfsio 47305 382695 0 0 3 0x14280 nfsidl nfsio 43688 128581 0 0 3 0x14280 nfsidl nfsio 64098 513015 61848 0 3 0x82 thrsleep syz-fuzzer 64098 315867 61848 0 3 0x4000082 nanoslp syz-fuzzer 64098 33058 61848 0 3 0x4000082 nanoslp syz-fuzzer 64098 66253 61848 0 3 0x4000082 thrsleep syz-fuzzer 64098 50987 61848 0 3 0x4000082 thrsleep syz-fuzzer 64098 20436 61848 0 3 0x4000082 thrsleep syz-fuzzer 64098 93679 61848 0 3 0x4000082 kqread syz-fuzzer 64098 234625 61848 0 3 0x4000082 thrsleep syz-fuzzer 64098 189645 61848 0 3 0x4000082 thrsleep syz-fuzzer 61848 237062 14286 0 3 0x10008a sigsusp ksh 14286 74237 7737 0 3 0x9a kqread sshd 7737 235354 1 0 3 0x88 kqread sshd 5476 25145 76442 74 3 0x100092 bpf pflogd 76442 517985 1 0 3 0x80 netio pflogd 2993 326471 35007 73 3 0x100090 kqread syslogd 35007 146143 1 0 3 0x100082 netio syslogd 50622 185159 1 0 3 0x100080 kqread resolvd 87531 116367 19220 77 3 0x100092 kqread dhcpleased 57115 294068 19220 77 3 0x100092 kqread dhcpleased 19220 17613 1 0 3 0x80 kqread dhcpleased 82030 337847 0 0 3 0x14200 bored smr 92875 439088 0 0 2 0x14200 zerothread 29087 323169 0 0 3 0x14200 aiodoned aiodoned 78246 387538 0 0 3 0x14200 syncer update 7760 101050 0 0 3 0x14200 cleaner cleaner 13768 126975 0 0 3 0x14200 reaper reaper 27977 352056 0 0 3 0x14200 pgdaemon pagedaemon 93429 147436 0 0 3 0x14200 bored viomb 29566 3764 0 0 3 0x40014200 acpi0 acpi0 6789 476696 0 0 7 0x40014200 idle1 11424 361288 0 0 3 0x14200 bored softnet 78473 362857 0 0 3 0x14200 bored systqmp 94112 220212 0 0 3 0x14200 bored systq 60549 303567 0 0 3 0x40014200 bored softclock 49707 40170 0 0 3 0x40014200 idle0 1 255201 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 15584 (syz-executor.5) thread 0xffff8000ffff5a40 (65346) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82b05080) #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 31100 (syz-executor.4) thread 0xffff8000ffff42a0 (497909) exclusive rrwlock inode r = 0 (0xfffffd805faffd68) #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 vget+0x1d3 sys/kern/vfs_subr.c:677 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1318 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:561 #11 namei+0x36a sys/kern/vfs_lookup.c:245 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1849 #13 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8068eddd60) #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 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1849 #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 10237 6655K 7336K 78643K 92611 0 pcb 13 24K 29K 78643K 7836 0 rtable 262 20K 20K 78643K 15263 0 ifaddr 111 29K 31K 78643K 2207 0 sysctl 3 1K 1K 78643K 3 0 counters 60 36K 36K 78643K 892 0 ioctlops 0 0K 8K 78643K 18189 0 iov 0 0K 20K 78643K 3233 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1477 92K 93K 78643K 24984 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 317 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 5476 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 16 57K 73K 78643K 44957 0 sigio 0 0K 0K 78643K 8847 0 proc 81 88K 112K 78643K 4079 0 subproc 104 6K 7K 78643K 1290 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 4913 0 in_multi 90 6K 6K 78643K 1903 0 ether_multi 1 0K 0K 78643K 252 0 mrt 3 0K 0K 78643K 385 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 247 1102K 1102K 78643K 247 0 exec 0 0K 2K 78643K 7265 0 pfkey data 0 0K 0K 78643K 176 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 749 1984K 1986K 78643K 564334 0 UVM aobj 131 9K 9K 78643K 135 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 2228 0 NDP 16 0K 1K 78643K 659 0 temp 148 4709K 8805K 78643K 306678 0 kqueue 12 18K 26K 78643K 1679 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 2337 0 2334 30 27 3 5 0 8 2 rtentry 112 6127 0 6019 5 1 4 4 0 8 0 unpcb 136 96470 0 96443 427 421 6 13 0 8 5 syncache 296 33 0 33 10 10 0 1 0 8 0 tcpqe 32 283 0 283 5 5 0 3 0 8 0 tcpcb 736 21736 0 21729 505 503 2 22 0 8 1 arp 120 1146 0 1125 1 0 1 1 0 8 0 inpcb 304 51701 0 51692 529 520 9 16 0 8 8 rttmr 72 66 0 66 3 3 0 1 0 8 0 nd6 48 319 0 295 1 0 1 1 0 8 0 pkpcb 40 142 0 142 16 16 0 1 0 8 0 kcovpl 48 98 0 90 1 0 1 1 0 8 0 ppxss 1248 211 0 210 38 37 1 1 0 8 0 pfstscr 40 3068 0 3068 2 2 0 1 0 8 0 pffrag 232 63 0 55 15 14 1 1 0 482 0 pffrnode 88 63 0 55 15 14 1 1 0 8 0 pffrent 40 273 0 265 18 17 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 pfrktable 1344 32 0 24 2 1 1 1 0 8 0 pfstitem 24 783 0 781 1 0 1 1 0 8 0 pfstkey 112 5049 0 5047 2 1 1 2 0 8 0 pfstate 320 2761 0 2759 4 3 1 4 0 8 0 pfrule 1360 56 0 40 3 1 2 2 0 8 0 art_heap8 4096 432 0 430 15 13 2 13 0 8 0 art_heap4 256 10027 0 9616 49 23 26 29 0 8 0 art_table 32 10459 0 10046 4 0 4 4 0 8 0 art_node 16 5751 0 5661 1 0 1 1 0 8 0 sysvmsgpl 40 57 0 26 1 0 1 1 0 8 0 semapl 112 5474 0 5464 1 0 1 1 0 8 0 shmpl 112 132 0 4 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 55784 0 54268 96 0 96 96 0 8 0 ffsino 272 55784 0 54268 102 0 102 102 0 8 0 nchpl 144 113251 0 111614 63 1 62 63 0 8 0 uvmvnodes 80 7853 0 0 161 0 161 161 0 8 0 vnodes 224 7853 0 0 462 0 462 462 0 8 0 namei 1024 379005 0 379005 10 9 1 2 0 8 1 percpumem 16 458 0 416 1 0 1 1 0 8 0 vcpupl 2048 385 0 1 48 0 48 48 0 8 0 vmpool 560 453 0 69 29 1 28 28 0 8 0 pfiaddrpl 120 20 0 10 2 1 1 1 0 8 0 scsiplug 72 25 0 25 9 9 0 1 0 8 0 scxspl 216 339449 0 339449 41 40 1 7 0 8 1 plimitpl 152 3357 0 3342 1 0 1 1 0 8 0 sigapl 424 45101 0 45036 8 0 8 8 0 8 0 futexpl 64 444591 0 444584 6 5 1 1 0 8 0 knotepl 120 893 0 0 12 1 11 11 0 8 0 kqueuepl 216 10960 0 10952 171 170 1 5 0 8 0 pipepl 336 18247 0 18219 334 331 3 14 0 8 0 fdescpl 496 45061 0 45032 7 3 4 5 0 8 0 filepl 152 372146 0 371889 587 567 20 27 0 8 10 lockfpl 104 8235 0 8212 24 23 1 3 0 8 0 lockfspl 48 2424 0 2404 1 0 1 1 0 8 0 sessionpl 144 119 0 102 1 0 1 1 0 8 0 pgrppl 48 420 0 403 1 0 1 1 0 8 0 ucredpl 96 28129 0 28106 1 0 1 1 0 8 0 zombiepl 144 45036 0 45035 4 3 1 1 0 8 0 processpl 1064 45101 0 45035 5 0 5 5 0 8 0 procpl 672 124602 0 124520 38 30 8 9 0 8 0 srpgc 96 123 0 123 21 21 0 1 0 8 0 sosppl 168 119 0 119 24 24 0 1 0 8 0 sockpl 480 150697 0 150658 2888 2859 29 46 0 8 24 mcl64k 65536 60 0 0 5 2 3 3 0 8 0 mcl16k 16384 49 0 0 7 4 3 3 0 8 0 mcl12k 12288 65 0 0 4 2 2 2 0 8 0 mcl9k 9216 33 0 0 2 0 2 2 0 8 0 mcl8k 8192 50 0 0 3 0 3 3 0 8 0 mcl4k 4096 81 0 0 7 1 6 7 0 8 0 mcl2k2 2112 22 0 0 2 0 2 2 0 8 0 mcl2k 2048 1010 0 0 53 34 19 46 0 8 0 mtagpl 96 2692 0 0 28 0 28 28 0 8 0 mbufpl 256 9088 0 0 441 1 440 440 0 8 0 bufpl 288 67392 0 59539 562 0 562 562 0 8 0 anonpl 24 12195625 0 12174471 327 186 141 153 0 186 5 amapchunkpl 152 1369002 0 1368104 171 133 38 54 0 158 0 amappl16 200 100196 0 99477 190 150 40 52 0 8 0 amappl15 192 7084 0 7076 1 0 1 1 0 8 0 amappl14 184 3530 0 3520 1 0 1 1 0 8 0 amappl13 176 8193 0 8189 1 0 1 1 0 8 0 amappl12 168 4347 0 4337 1 0 1 1 0 8 0 amappl11 160 8041 0 8027 2 1 1 2 0 8 0 amappl10 152 4292 0 4279 1 0 1 1 0 8 0 amappl9 144 3461 0 3451 1 0 1 1 0 8 0 amappl8 136 9995 0 9812 8 1 7 7 0 8 0 amappl7 128 7422 0 7410 1 0 1 1 0 8 0 amappl6 120 3493 0 3452 8 6 2 2 0 8 0 amappl5 112 36963 0 36946 1 0 1 1 0 8 0 amappl4 104 14296 0 14257 3 1 2 2 0 8 0 amappl3 96 13302 0 13286 1 0 1 1 0 8 0 amappl2 88 13647 0 13577 3 0 3 3 0 8 0 amappl1 80 795323 0 794726 19 5 14 19 0 8 0 amappl 88 561462 0 561064 12 2 10 10 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 72 134 0 4 3 0 3 3 0 8 0 uaddrrnd 24 45514 0 45101 3 0 3 3 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 45514 0 45101 3 0 3 3 0 8 0 vmmpekpl 168 338101 0 338001 6 1 5 5 0 8 0 vmmpepl 168 4019000 0 4015567 669 497 172 185 0 357 7 vmsppl 368 45513 0 45101 39 1 38 38 0 8 0 rwobjpl 56 938362 0 928372 171 27 144 144 0 8 0 pdppl 4096 91035 0 90586 1830 1377 453 453 0 8 4 pvpl 32 20651944 0 20625966 752 518 234 278 0 265 17 pmappl 248 45513 0 45101 27 1 26 26 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 4115 0 2302 52 0 52 52 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(ffffffff8257162d) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825e9dfe,ffffffff8255a0b2,568,ffffffff8258855b) at __assert+0x25 sys/kern/subr_prf.c:161 m_align(fffffd806176bd00,ffffffef) at m_align+0x1a0 sys/kern/uipc_mbuf.c:1385 bpf_movein(ffff800027ffb130,ffff800000d38800,ffff800027ffae98,ffff800027ffad98) at bpf_movein+0x25e sys/net/bpf.c:228 bpfwrite(31700,ffff800027ffb130,1) at bpfwrite+0x169 sys/net/bpf.c:644 spec_write(ffff800027ffaf90) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd807b2c51c8,ffff800027ffb130,1,fffffd807f7d84e0) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 vn_write(fffffd806779ad18,ffff800027ffb130,1) at vn_write+0x1a1 sys/kern/vfs_vnops.c:414 dofilewritev(ffff8000ffff5a40,3,ffff800027ffb130,1,ffff800027ffb230) at dofilewritev+0x19c sys/kern/sys_generic.c:381 sys_pad_pwrite(ffff8000ffff5a40,ffff800027ffb1d8,ffff800027ffb230) at sys_pad_pwrite+0x92 sys_pwrite sys/kern/vfs_syscalls.c:3354 [inline] sys_pad_pwrite(ffff8000ffff5a40,ffff800027ffb1d8,ffff800027ffb230) at sys_pad_pwrite+0x92 sys/kern/vfs_syscalls.c:3426 syscall(ffff800027ffb2a0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027ffb2a0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9da9a60dd40, 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