login: 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 *375846 57188 0 0 0x4000000 0K syz-executor.5 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82579a90) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ec6cc,ffffffff82560ab1,568,ffffffff8258f284) at __assert+0x25 sys/kern/subr_prf.c:161 m_align(fffffd80664fd300,ffffffd5) at m_align+0x1a0 sys/kern/uipc_mbuf.c:1385 bpf_movein(ffff80002a50e3c0,ffff800000c62600,ffff80002a50e128,ffff80002a50e028) at bpf_movein+0x25e sys/net/bpf.c:228 bpfwrite(31700,ffff80002a50e3c0,1) at bpfwrite+0x169 sys/net/bpf.c:644 spec_write(ffff80002a50e220) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806580e260,ffff80002a50e3c0,1,fffffd807f7d8300) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 vn_write(fffffd8067a61b50,ffff80002a50e3c0,1) at vn_write+0x1a1 sys/kern/vfs_vnops.c:414 dofilewritev(ffff8000211f82a8,3,ffff80002a50e3c0,1,ffff80002a50e4c0) at dofilewritev+0x19c sys/kern/sys_generic.c:381 sys_pad_pwrite(ffff8000211f82a8,ffff80002a50e468,ffff80002a50e4c0) at sys_pad_pwrite+0x92 sys_pwrite sys/kern/vfs_syscalls.c:3354 [inline] sys_pad_pwrite(ffff8000211f82a8,ffff80002a50e468,ffff80002a50e4c0) at sys_pad_pwrite+0x92 sys/kern/vfs_syscalls.c:3426 syscall(ffff80002a50e530) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002a50e530) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa6ab23bff00, 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(ffffffff82579a90) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ec6cc,ffffffff82560ab1,568,ffffffff8258f284) at __assert+0x25 sys/kern/subr_prf.c:161 m_align(fffffd80664fd300,ffffffd5) at m_align+0x1a0 sys/kern/uipc_mbuf.c:1385 bpf_movein(ffff80002a50e3c0,ffff800000c62600,ffff80002a50e128,ffff80002a50e028) at bpf_movein+0x25e sys/net/bpf.c:228 bpfwrite(31700,ffff80002a50e3c0,1) at bpfwrite+0x169 sys/net/bpf.c:644 spec_write(ffff80002a50e220) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806580e260,ffff80002a50e3c0,1,fffffd807f7d8300) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 vn_write(fffffd8067a61b50,ffff80002a50e3c0,1) at vn_write+0x1a1 sys/kern/vfs_vnops.c:414 dofilewritev(ffff8000211f82a8,3,ffff80002a50e3c0,1,ffff80002a50e4c0) at dofilewritev+0x19c sys/kern/sys_generic.c:381 sys_pad_pwrite(ffff8000211f82a8,ffff80002a50e468,ffff80002a50e4c0) at sys_pad_pwrite+0x92 sys_pwrite sys/kern/vfs_syscalls.c:3354 [inline] sys_pad_pwrite(ffff8000211f82a8,ffff80002a50e468,ffff80002a50e4c0) at sys_pad_pwrite+0x92 sys/kern/vfs_syscalls.c:3426 syscall(ffff80002a50e530) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002a50e530) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa6ab23bff00, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a50de40 rbx 0xffffffff828ecbff cpu_info_full_primary+0x2bff rdx 0xffff800000cd57c0 rcx 0 rax 0xffff8000211f82a8 r8 0 r9 0x8080808080808080 r10 0xacdcf2a5c06da202 r11 0xce2e0914843c2b21 r12 0xffffffff828eca00 cpu_info_full_primary+0x2a00 r13 0 r14 0 r15 0x1 rip 0xffffffff82237da8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002a50de30 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.5) pid=375846 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff47e0,0xffff8000211f8a98 process=0xffff8000211a0438 user=0xffff80002a509000, vmspace=0xfffffd8075ad9738 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 4993 284784 49879 0 2 0 syz-executor.7 50965 422446 97856 0 2 0 syz-executor.6 50965 137134 97856 0 3 0x4000080 bell syz-executor.6 38770 167491 78613 0 2 0 syz-executor.3 38770 383161 78613 0 3 0x4000080 fsleep syz-executor.3 57188 520015 65193 0 2 0 syz-executor.5 *57188 375846 65193 0 7 0x4000000 syz-executor.5 43633 517407 25647 0 2 0x10 syz-executor.0 43633 81407 25647 0 3 0x4000090 fsleep syz-executor.0 52262 306333 1 0 3 0x100083 ttyin getty 25647 436667 85408 0 3 0x82 nanoslp syz-executor.0 78613 138244 85408 0 3 0x82 nanoslp syz-executor.3 52721 369734 85408 0 2 0x2 syz-executor.2 41158 268623 0 0 3 0x14280 nfsidl nfsio 99632 201814 0 0 3 0x14280 nfsidl nfsio 32856 173392 0 0 3 0x14280 nfsidl nfsio 66446 280529 0 0 3 0x14280 nfsidl nfsio 87057 259193 0 0 3 0x14280 nfsidl nfsio 30986 161253 0 0 3 0x14280 nfsidl nfsio 14615 94760 0 0 3 0x14280 nfsidl nfsio 71970 416599 0 0 3 0x14280 nfsidl nfsio 19288 496082 0 0 3 0x14280 nfsidl nfsio 89334 173732 0 0 3 0x14280 nfsidl nfsio 87015 346615 0 0 3 0x14280 nfsidl nfsio 65126 388258 0 0 3 0x14280 nfsidl nfsio 55383 385178 0 0 3 0x14280 nfsidl nfsio 80249 204363 0 0 3 0x14280 nfsidl nfsio 28167 237638 0 0 3 0x14280 nfsidl nfsio 80498 417378 0 0 3 0x14280 nfsidl nfsio 39479 86260 0 0 3 0x14280 nfsidl nfsio 22871 183512 0 0 3 0x14280 nfsidl nfsio 73162 331607 0 0 3 0x14280 nfsidl nfsio 5470 467926 0 0 3 0x14280 nfsidl nfsio 65193 317153 85408 0 2 0x482 syz-executor.5 99798 446173 85408 0 3 0x82 nanoslp syz-executor.1 49879 235470 85408 0 2 0x482 syz-executor.7 97856 255563 85408 0 2 0x482 syz-executor.6 12759 338538 0 0 3 0x14200 bored sosplice 83979 320556 85408 0 3 0x82 piperd syz-executor.4 85408 326815 81057 0 3 0x82 kqread syz-fuzzer 85408 79600 81057 0 2 0x4000482 syz-fuzzer 85408 310232 81057 0 3 0x4000082 thrsleep syz-fuzzer 85408 366656 81057 0 3 0x4000082 thrsleep syz-fuzzer 85408 517745 81057 0 3 0x4000082 thrsleep syz-fuzzer 85408 438066 81057 0 3 0x4000082 thrsleep syz-fuzzer 85408 205646 81057 0 3 0x4000082 thrsleep syz-fuzzer 85408 209017 81057 0 3 0x4000082 thrsleep syz-fuzzer 85408 217530 81057 0 3 0x4000082 thrsleep syz-fuzzer 85408 404042 81057 0 3 0x4000082 thrsleep syz-fuzzer 81057 283509 2671 0 3 0x10008a sigsusp ksh 2671 382762 24363 0 3 0x9a kqread sshd 24363 263102 1 0 3 0x88 kqread sshd 39817 516642 97730 74 3 0x100092 bpf pflogd 97730 298234 1 0 3 0x80 netio pflogd 68471 199819 45757 73 3 0x100090 kqread syslogd 45757 100940 1 0 3 0x100082 netio syslogd 25461 98076 1 0 3 0x100080 kqread resolvd 79022 385032 42569 77 3 0x100092 kqread dhcpleased 54684 236086 42569 77 3 0x100092 kqread dhcpleased 42569 238373 1 0 3 0x80 kqread dhcpleased 17497 510730 0 0 3 0x14200 bored smr 45047 279467 0 0 2 0x14200 zerothread 25789 411263 0 0 3 0x14200 aiodoned aiodoned 9913 350682 0 0 3 0x14200 syncer update 38873 215530 0 0 3 0x14200 cleaner cleaner 25196 487463 0 0 3 0x14200 reaper reaper 58011 390929 0 0 3 0x14200 pgdaemon pagedaemon 40850 413158 0 0 3 0x14200 bored viomb 92995 476967 0 0 3 0x40014200 acpi0 acpi0 58769 520733 0 0 7 0x40014200 idle1 32302 442854 0 0 3 0x14200 bored softnet 65896 204428 0 0 3 0x14200 bored systqmp 52550 221341 0 0 3 0x14200 bored systq 59995 23103 0 0 2 0x40014200 softclock 17433 304 0 0 3 0x40014200 idle0 1 505653 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 57188 (syz-executor.5) thread 0xffff8000211f82a8 (375846) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82ac44c8) #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 52721 (syz-executor.2) thread 0xffff8000211f9508 (369734) exclusive rrwlock inode r = 0 (0xfffffd806d51dd58) #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 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3100 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ebbb5f8) #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 domkdirat+0x75 sys/kern/vfs_syscalls.c:3085 #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 10226 6569K 8217K 78643K 38208 0 pcb 13 22K 25K 78643K 2549 0 rtable 266 27K 29K 78643K 2279 0 ifaddr 101 23K 27K 78643K 990 0 sysctl 3 1K 1K 78643K 3 0 counters 56 35K 36K 78643K 334 0 ioctlops 0 0K 8K 78643K 3963 0 iov 0 0K 24K 78643K 1525 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1629 102K 102K 78643K 10304 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 149 0 VM map 2 1K 1K 78643K 2 0 sem 10 1K 1K 78643K 11 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 15 53K 82K 78643K 15137 0 sigio 0 0K 0K 78643K 252 0 proc 71 87K 136K 78643K 2049 0 subproc 104 6K 7K 78643K 516 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1288 0 in_multi 71 4K 7K 78643K 887 0 ether_multi 1 0K 0K 78643K 169 0 mrt 3 0K 0K 78643K 64 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 2883 0 pfkey data 0 0K 0K 78643K 4 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 607 1034K 1035K 78643K 191040 0 UVM aobj 131 8K 8K 78643K 133 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 795 0 NDP 14 0K 1K 78643K 250 0 temp 158 4733K 8829K 78643K 162999 0 kqueue 12 18K 26K 78643K 1143 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 1163 0 1159 18 17 1 5 0 8 0 rtentry 112 673 0 582 4 0 4 4 0 8 0 unpcb 136 7111 0 7094 78 75 3 6 0 8 2 syncache 296 153 0 153 13 13 0 1 0 8 0 tcpqe 32 68 0 68 10 10 0 1 0 8 0 tcpcb 736 17987 0 17972 335 324 11 25 0 8 8 arp 120 115 0 99 1 0 1 1 0 8 0 inpcb 304 27212 0 27205 236 229 7 17 0 8 6 rttmr 72 13 0 13 4 4 0 1 0 8 0 nd6 48 154 0 131 1 0 1 1 0 8 0 pkpcb 40 87 0 87 4 4 0 1 0 8 0 kcovpl 48 38 0 30 1 0 1 1 0 8 0 ppxss 1248 41 0 41 11 11 0 1 0 8 0 pfstscr 40 77 0 77 4 4 0 1 0 8 0 pffrag 232 71 0 67 4 3 1 1 0 482 0 pffrnode 88 71 0 67 4 3 1 1 0 8 0 pffrent 40 204 0 200 4 3 1 1 0 8 0 pfosfp 40 1435 0 1011 5 0 5 5 0 8 0 pfosfpen 112 1435 0 714 21 0 21 21 0 8 0 pfrke_plain 168 6 0 0 1 0 1 1 0 8 0 pfrktable 1344 83 0 60 6 4 2 3 0 8 0 pftag 88 7 0 0 1 0 1 1 0 8 0 pfqueue 264 4 0 4 1 1 0 1 0 8 0 pfstitem 24 24 0 22 1 0 1 1 0 8 0 pfstkey 112 178 0 176 1 0 1 1 0 8 0 pfstate 320 101 0 99 2 1 1 2 0 8 0 pfrule 1360 286 0 220 8 2 6 6 0 8 0 art_heap8 4096 4 0 3 4 3 1 3 0 8 0 art_heap4 256 2747 0 2339 46 20 26 33 0 8 0 art_table 32 2751 0 2342 5 0 5 5 0 8 0 art_node 16 668 0 588 1 0 1 1 0 8 0 sysvmsgpl 40 25 0 9 2 1 1 1 0 8 0 semupl 112 4 0 4 3 3 0 1 0 8 0 semapl 112 9 0 1 1 0 1 1 0 8 0 shmpl 112 130 0 2 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 21694 0 20199 94 0 94 94 0 8 0 ffsino 272 21694 0 20199 100 0 100 100 0 8 0 nchpl 144 41816 0 40186 63 0 63 63 0 8 0 rtmask 32 4 0 2 1 0 1 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 150236 0 150235 8 7 1 2 0 8 0 percpumem 16 179 0 139 1 0 1 1 0 8 0 vcpupl 2048 130 0 0 17 0 17 17 0 8 0 vmpool 560 213 0 83 13 3 10 10 0 8 0 pfiaddrpl 120 37 0 19 1 0 1 1 0 8 0 scsiplug 72 13 0 13 5 5 0 1 0 8 0 scxspl 216 127995 0 127995 26 25 1 6 0 8 1 plimitpl 152 1558 0 1543 1 0 1 1 0 8 0 sigapl 424 15430 0 15367 9 1 8 8 0 8 0 futexpl 64 149338 0 149336 1 0 1 1 0 8 0 knotepl 120 365 0 0 5 0 5 5 0 8 0 kqueuepl 216 4518 0 4510 74 71 3 8 0 8 2 pipepl 336 3375 0 3347 99 94 5 13 0 8 2 fdescpl 496 15370 0 15342 7 3 4 5 0 8 0 filepl 152 115102 0 114857 197 179 18 20 0 8 7 lockfpl 104 4855 0 4852 15 13 2 2 0 8 1 lockfspl 48 1561 0 1558 1 0 1 1 0 8 0 sessionpl 144 58 0 41 1 0 1 1 0 8 0 pgrppl 48 97 0 80 1 0 1 1 0 8 0 ucredpl 96 13138 0 13125 1 0 1 1 0 8 0 zombiepl 144 15367 0 15366 3 2 1 1 0 8 0 processpl 1064 15430 0 15366 5 0 5 5 0 8 0 procpl 672 41085 0 41008 18 10 8 9 0 8 0 srpgc 96 33 0 33 7 7 0 1 0 8 0 sosppl 168 168 0 168 26 26 0 1 0 8 0 sockpl 480 35588 0 35560 650 638 12 38 0 8 8 mcl64k 65536 25 0 0 4 1 3 3 0 8 0 mcl16k 16384 15 0 0 2 0 2 2 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 26 0 0 3 0 3 3 0 8 0 mcl4k 4096 33 0 0 5 2 3 3 0 8 0 mcl2k2 2112 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 644 0 0 60 27 33 60 0 8 0 mtagpl 96 870 0 0 19 0 19 19 0 8 0 mbufpl 256 2110 0 0 98 0 98 98 0 8 0 bufpl 288 31548 0 25212 453 0 453 453 0 8 0 anonpl 24 4343105 0 4322394 342 198 144 175 0 186 0 amapchunkpl 152 464481 0 463600 145 106 39 49 0 158 0 amappl16 200 43894 0 43138 239 196 43 65 0 8 2 amappl15 192 2760 0 2754 1 0 1 1 0 8 0 amappl14 184 1067 0 1063 1 0 1 1 0 8 0 amappl13 176 3657 0 3654 1 0 1 1 0 8 0 amappl12 168 1531 0 1528 1 0 1 1 0 8 0 amappl11 160 4344 0 4329 1 0 1 1 0 8 0 amappl10 152 717 0 710 1 0 1 1 0 8 0 amappl9 144 1271 0 1269 1 0 1 1 0 8 0 amappl8 136 2786 0 2626 7 1 6 6 0 8 0 amappl7 128 1207 0 1191 1 0 1 1 0 8 0 amappl6 120 1109 0 1080 2 1 1 2 0 8 0 amappl5 112 10412 0 10391 1 0 1 1 0 8 0 amappl4 104 9217 0 9179 2 0 2 2 0 8 0 amappl3 96 5401 0 5387 1 0 1 1 0 8 0 amappl2 88 5409 0 5341 3 1 2 3 0 8 0 amappl1 80 276064 0 275501 20 6 14 19 0 8 0 amappl 88 189049 0 188719 12 3 9 9 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 72 132 0 2 3 0 3 3 0 8 0 uaddrrnd 24 15583 0 15425 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 15583 0 15425 1 0 1 1 0 8 0 vmmpekpl 168 107086 0 107004 4 0 4 4 0 8 0 vmmpepl 168 1398898 0 1395837 409 253 156 185 0 357 0 vmsppl 368 15582 0 15425 16 1 15 15 0 8 0 rwobjpl 56 337213 0 329254 132 16 116 120 0 8 0 pdppl 4096 31173 0 30980 620 421 199 199 0 8 6 pvpl 32 7361823 0 7336482 627 401 226 277 0 265 0 pmappl 248 15582 0 15425 12 1 11 11 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 1978 0 904 32 0 32 32 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(ffffffff82579a90) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ec6cc,ffffffff82560ab1,568,ffffffff8258f284) at __assert+0x25 sys/kern/subr_prf.c:161 m_align(fffffd80664fd300,ffffffd5) at m_align+0x1a0 sys/kern/uipc_mbuf.c:1385 bpf_movein(ffff80002a50e3c0,ffff800000c62600,ffff80002a50e128,ffff80002a50e028) at bpf_movein+0x25e sys/net/bpf.c:228 bpfwrite(31700,ffff80002a50e3c0,1) at bpfwrite+0x169 sys/net/bpf.c:644 spec_write(ffff80002a50e220) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806580e260,ffff80002a50e3c0,1,fffffd807f7d8300) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 vn_write(fffffd8067a61b50,ffff80002a50e3c0,1) at vn_write+0x1a1 sys/kern/vfs_vnops.c:414 dofilewritev(ffff8000211f82a8,3,ffff80002a50e3c0,1,ffff80002a50e4c0) at dofilewritev+0x19c sys/kern/sys_generic.c:381 sys_pad_pwrite(ffff8000211f82a8,ffff80002a50e468,ffff80002a50e4c0) at sys_pad_pwrite+0x92 sys_pwrite sys/kern/vfs_syscalls.c:3354 [inline] sys_pad_pwrite(ffff8000211f82a8,ffff80002a50e468,ffff80002a50e4c0) at sys_pad_pwrite+0x92 sys/kern/vfs_syscalls.c:3426 syscall(ffff80002a50e530) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002a50e530) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa6ab23bff00, 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