panic: kernel diagnostic assertion "rn != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/net/pipex.c", line 459 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *256791 63197 0 0 0x4000000 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833affa3) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f02e7,ffffffff8340dbbd,1cb,ffffffff833aa8a9) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003c4477e0) at pipex_unlink_session_locked+0x429 pipex_destroy_all_sessions(ffff80000149c000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff80000149c000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,81,2000,ffff8000fffeba10) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80003c429c40) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd800c57db18,81,fffffd80097fd618,ffff8000fffeba10) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806ca72358,ffff8000fffeba10) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806ca72358,ffff8000fffeba10) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806ca72358,ffff8000fffeba10) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806ca72358,ffff8000fffeba10) at closef+0x192 sys/kern/kern_descrip.c:1264 syscall(ffff80003c429ea0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c429ea0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc0837a21ee0, 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 "rn != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/net/pipex.c", line 459 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833affa3) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f02e7,ffffffff8340dbbd,1cb,ffffffff833aa8a9) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003c4477e0) at pipex_unlink_session_locked+0x429 pipex_destroy_all_sessions(ffff80000149c000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff80000149c000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,81,2000,ffff8000fffeba10) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80003c429c40) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd800c57db18,81,fffffd80097fd618,ffff8000fffeba10) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806ca72358,ffff8000fffeba10) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806ca72358,ffff8000fffeba10) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806ca72358,ffff8000fffeba10) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806ca72358,ffff8000fffeba10) at closef+0x192 sys/kern/kern_descrip.c:1264 syscall(ffff80003c429ea0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c429ea0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc0837a21ee0, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c429a10 rbx 0xffffffff83891e07 cpu_info_full_primary+0x2e07 rdx 0xffff800001506900 rcx 0xffff8000fffeba10 rax 0xffffffff83890ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xa991ba4b210d2eff r11 0x9c6b7686ef8a620b r12 0xffffffff83891c08 cpu_info_full_primary+0x2c08 r13 0 r14 0 r15 0x1 rip 0xffffffff81f63865 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c429a00 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=256791 pid=63197 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffead18,0xffff8000fffeb4f0 process=0xffff80003c4a44f8 user=0xffff80003c424000, vmspace=0xfffffd805f2a6028 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 63197 105888 28000 0 3 0x80 nanoslp syz-executor *63197 256791 28000 0 7 0x4000000 syz-executor 38647 501119 80484 0 3 0x80 nanoslp syz-executor 38647 73744 80484 0 3 0x4000080 netcon syz-executor 38647 292767 80484 0 3 0x4000080 fsleep syz-executor 4314 233055 79127 0 3 0x80 nanoslp syz-executor 4314 301619 79127 0 3 0x4000080 kqread syz-executor 4314 83443 79127 0 3 0x4000080 fsleep syz-executor 30765 274630 12508 0 3 0x80 nanoslp syz-executor 30765 378299 12508 0 3 0x4000080 tunread syz-executor 30765 168392 12508 0 3 0x4000080 fsleep syz-executor 36596 359039 7971 0 3 0x80 nanoslp syz-executor 36596 186058 7971 0 3 0x4000080 ttyout syz-executor 36596 469296 7971 0 3 0x4000080 fsleep syz-executor 74095 344597 94493 0 3 0x3000 suspend syz-executor 74095 2918 94493 0 3 0x4081000 biowait syz-executor 8423 214394 0 0 3 0x14200 acct acct 94493 246595 18329 0 3 0x82 nanoslp syz-executor 28000 78455 18329 0 3 0x82 nanoslp syz-executor 79127 211034 18329 0 3 0x82 nanoslp syz-executor 80484 141302 18329 0 3 0x82 nanoslp syz-executor 7971 389797 18329 0 3 0x82 nanoslp syz-executor 47092 242205 18329 0 2 0x10000002 syz-executor 12508 102042 18329 0 3 0x82 nanoslp syz-executor 8347 281853 18329 0 2 0x10000082 syz-executor 18329 3088 63797 0 3 0x82 kqread syz-executor 63797 402505 16145 0 3 0x10008a sigsusp ksh 16145 335288 35757 0 3 0x98 kqread sshd-session 35757 500727 94949 0 3 0x92 kqread sshd-session 80108 70086 1 0 3 0x100083 ttyin getty 94949 330266 1 0 3 0x88 kqread sshd 75661 316969 28326 74 3 0x1100092 bpf pflogd 28326 98709 1 0 3 0x80 sbwait pflogd 85502 442134 37974 73 3 0x1100090 kqread syslogd 37974 312431 1 0 3 0x100082 sbwait syslogd 15818 421050 1 0 3 0x100080 kqread resolvd 12232 341413 29966 77 2 0x100012 dhcpleased 93304 329520 29966 77 2 0x100012 dhcpleased 29966 182135 1 0 3 0x80 kqread dhcpleased 75010 383273 0 0 3 0x14200 bored smr 77446 182128 0 0 3 0x14200 pgzero zerothread 19058 90082 0 0 3 0x14200 aiodoned aiodoned 3250 212651 0 0 3 0x14200 syncer update 70696 131665 0 0 3 0x14200 cleaner cleaner 28064 174199 0 0 3 0x14200 reaper reaper 70043 207214 0 0 3 0x14200 pgdaemon pagedaemon 36765 66618 0 0 3 0x14200 bored viomb 21981 162210 0 0 3 0x40014200 acpi0 acpi0 16538 403246 0 0 7 0x40014200 idle1 57139 62256 0 0 3 0x14200 bored softnet1 90082 475316 0 0 3 0x14200 bored softnet0 53043 255433 0 0 3 0x14200 bored systqmp 52676 41444 0 0 3 0x14200 bored systq 31594 179334 0 0 3 0x14200 tmoslp softclockmp 34020 520557 0 0 3 0x40014200 tmoslp softclock 69552 193820 0 0 3 0x40014200 idle0 1 445139 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex /syzkaller/managers/multicore/kernel/sys/net/pipex.c:78 r = 0 (0xffffffff838808e0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 pipex_destroy_all_sessions+0x2f sys/net/pipex.c:144 #3 pppacclose+0x16f sys/net/if_pppx.c:1335 #4 spec_close+0x417 sys/kern/spec_vnops.c:-1 #5 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 #6 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] #6 vn_closefile+0x12b sys/kern/vfs_vnops.c:615 #7 fdrop+0x121 sys/kern/kern_descrip.c:1280 #8 closef+0x192 sys/kern/kern_descrip.c:1264 #9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #10 Xsyscall+0x128 Process 63197 (syz-executor) thread 0xffff8000fffeba10 (256791) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839a3048) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2d8 sys/kern/kern_synch.c:369 #3 msleep_nsec+0x132 sys/kern/kern_synch.c:219 #4 taskq_do_barrier+0x293 sys/kern/kern_task.c:318 #5 ifiq_destroy+0xda sys/net/ifq.c:697 #6 if_detach+0x7a6 sys/net/if.c:-1 #7 pppacclose+0x118 sys/net/if_pppx.c:1329 #8 spec_close+0x417 sys/kern/spec_vnops.c:-1 #9 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 #10 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] #10 vn_closefile+0x12b sys/kern/vfs_vnops.c:615 #11 fdrop+0x121 sys/kern/kern_descrip.c:1280 #12 closef+0x192 sys/kern/kern_descrip.c:1264 #13 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #14 Xsyscall+0x128 exclusive mutex /syzkaller/managers/multicore/kernel/sys/net/pipex.c:78 r = 0 (0xffffffff838808e0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 pipex_destroy_all_sessions+0x2f sys/net/pipex.c:144 #3 pppacclose+0x16f sys/net/if_pppx.c:1335 #4 spec_close+0x417 sys/kern/spec_vnops.c:-1 #5 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 #6 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] #6 vn_closefile+0x12b sys/kern/vfs_vnops.c:615 #7 fdrop+0x121 sys/kern/kern_descrip.c:1280 #8 closef+0x192 sys/kern/kern_descrip.c:1264 #9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #10 Xsyscall+0x128 Process 74095 (syz-executor) thread 0xffff8000ffff2a78 (2918) exclusive rrwlock inode r = 0 (0xfffffd806f283b88) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10242 11130K 11719K 166960K 15709 0 pcb 20 22K 26K 166960K 763 0 rtable 201 13K 15K 166960K 810 0 pf 35 17K 82K 166960K 294 0 ifaddr 34 6K 9K 166960K 189 0 ifgroup 52 2K 2K 166960K 340 0 sysctl 4 1K 9K 166960K 21 0 counters 70 36K 38K 166960K 522 0 ioctlops 0 0K 6K 166960K 2108 0 iov 0 0K 24K 166960K 229 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1498 94K 94K 166960K 3802 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 9K 166960K 33 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 270 0 dirhash 12 2K 2K 166960K 57 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 232K 166960K 2230 0 sigio 0 0K 0K 166960K 206 0 proc 74 115K 196K 166960K 842 0 subproc 72 4K 4K 166960K 119 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 508 0 in_multi 59 4K 7K 166960K 256 0 ether_multi 1 0K 0K 166960K 22 0 mrt 1 0K 0K 166960K 21 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 864 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 38 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 242 152K 175K 166960K 21576 0 UVM aobj 18 20K 22K 166960K 23 0 pinsyscall 41 82K 104K 166960K 3509 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 236 0 NDP 11 0K 2K 166960K 135 0 temp 84 8680K 8760K 166960K 106691 0 kqueue 14 22K 30K 166960K 435 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 221 0 218 2 1 1 2 0 8 0 rtentry 176 222 0 152 6 0 6 6 0 8 0 unpcb 144 1947 0 1927 16 12 4 6 0 8 3 syncache 336 14 0 14 6 5 1 1 0 8 1 tcpqe 32 7 0 7 3 2 1 1 0 8 1 tcpcb 736 923 0 913 28 23 5 16 0 8 4 arp 136 29 0 16 1 0 1 1 0 8 0 ipq 40 8 0 3 1 0 1 1 0 8 0 ipqe 40 12 0 7 1 0 1 1 0 8 0 inpcb 328 3565 0 3548 48 43 5 20 0 8 3 ip6q 72 2 0 1 1 0 1 1 0 8 0 ip6af 40 3 0 2 1 0 1 1 0 8 0 nd6 152 48 0 34 3 1 2 2 0 8 0 pkpcb 40 84 0 84 5 4 1 1 0 8 1 kcovpl 48 13 0 5 1 0 1 1 0 8 0 ppxss 1192 191 0 190 1 0 1 1 0 8 0 pppxif 1504 20 0 20 4 3 1 1 0 8 1 pfstscr 40 3 0 3 3 3 0 1 0 8 0 pffrag 232 5 0 5 1 1 0 1 0 482 0 pffrnode 88 5 0 5 1 1 0 1 0 8 0 pffrent 40 9 0 9 1 1 0 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 6 0 6 2 2 0 1 0 8 0 pfanchor 1288 3 0 1 2 1 1 1 0 8 0 pftag 88 1 0 1 1 1 0 1 0 8 0 pfstitem 24 70 0 61 1 0 1 1 0 8 0 pfstkey 128 76 0 67 2 0 2 2 0 8 0 pfstate 448 73 0 65 5 1 4 5 0 8 0 pfrule 1344 27 0 22 2 1 1 2 0 8 0 rttmr 136 2 0 2 2 2 0 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 939 0 649 37 7 30 31 0 8 3 art_table 40 943 0 649 5 0 5 5 0 8 0 art_node 32 220 0 158 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 3 1 0 1 1 0 8 0 semapl 112 268 0 258 1 0 1 1 0 8 0 shmpl 112 6 0 0 1 0 1 1 0 8 0 dirhash 1024 48 0 31 3 0 3 3 0 8 0 dino2pl 256 5672 0 4154 96 0 96 96 0 8 0 ffsino 296 5672 0 4154 118 0 118 118 0 8 0 nchpl 144 8688 0 6963 64 0 64 64 0 8 0 rtmask 32 25 0 24 5 4 1 1 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 32545 0 32545 4 3 1 2 0 8 1 percpumem 16 276 0 226 1 0 1 1 0 8 0 vcpupl 3968 11 0 2 2 0 2 2 0 8 0 vmpool 840 14 0 5 2 0 2 2 0 8 0 pfiaddrpl 120 1 0 1 1 1 0 1 0 8 0 kstatmem 264 218 0 192 3 0 3 3 0 8 0 scsiplug 72 14 0 14 4 3 1 1 0 8 1 scxspl 216 57231 0 57230 11 9 2 8 1 8 1 plimitpl 152 632 0 614 1 0 1 1 0 8 0 sigapl 424 2547 0 2498 8 1 7 8 0 8 0 knotepl 120 784 0 0 24 0 24 24 0 8 0 kqueuepl 224 1264 0 1252 18 13 5 6 0 8 3 pipepl 344 528 0 501 12 3 9 9 0 8 6 fdescpl 528 2501 0 2471 3 0 3 3 0 8 0 filepl 160 20501 0 20264 40 23 17 23 0 8 5 lockfpl 104 1066 0 1062 3 2 1 2 0 8 0 lockfspl 48 364 0 360 1 0 1 1 0 8 0 sessionpl 144 36 0 27 1 0 1 1 0 8 0 pgrppl 48 210 0 193 1 0 1 1 0 8 0 ucredpl 104 2877 0 2863 1 0 1 1 0 8 0 zombiepl 144 2501 0 2498 1 0 1 1 0 8 0 processpl 1232 2547 0 2498 6 1 5 6 0 8 0 procpl 664 5852 0 5793 9 3 6 8 0 8 0 sosppl 176 13 0 12 5 4 1 1 0 8 0 sockpl 752 5890 0 5850 73 60 13 26 0 8 8 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 140 0 0 17 0 17 17 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 126 0 0 10 0 10 10 0 8 0 mtagpl 96 118 0 0 3 0 3 3 0 8 0 mbufpl 256 322 0 0 17 0 17 17 0 8 0 bufpl 280 23778 0 17642 439 0 439 439 0 8 0 anonpl 32 12468 0 0 101 0 101 101 0 246 0 amapchunkpl 152 74198 0 73686 53 25 28 33 0 158 4 amappl16 200 8980 0 8805 76 60 16 27 0 8 6 amappl15 192 9 0 8 1 0 1 1 0 8 0 amappl14 184 8 0 7 1 0 1 1 0 8 0 amappl13 176 487 0 486 1 0 1 1 0 8 0 amappl12 168 2912 0 2871 3 0 3 3 0 8 0 amappl11 160 6 0 6 2 2 0 1 0 8 0 amappl10 152 50 0 36 1 0 1 1 0 8 0 amappl9 144 247 0 247 1 1 0 1 0 8 0 amappl8 136 29 0 27 1 0 1 1 0 8 0 amappl7 128 102 0 101 1 0 1 1 0 8 0 amappl6 120 347 0 334 1 0 1 1 0 8 0 amappl5 112 91 0 79 1 0 1 1 0 8 0 amappl4 104 490 0 458 1 0 1 1 0 8 0 amappl3 96 15033 0 14926 5 1 4 4 0 8 0 amappl2 88 644 0 583 2 0 2 2 0 8 0 amappl1 80 20723 0 20140 14 0 14 14 0 8 0 amappl 88 20368 0 20203 7 2 5 5 0 92 0 uvmvnodes 80 188 0 0 4 0 4 4 0 8 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma16384 16384 2 0 2 2 2 0 1 0 8 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 128 258 0 258 3 2 1 1 0 8 1 dma64 64 8 0 8 3 3 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 22 0 5 1 0 1 1 0 8 0 uaddrrnd 24 2501 0 2471 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2501 0 2471 1 0 1 1 0 8 0 vmmpekpl 168 21779 0 21719 3 0 3 3 0 8 0 vmmpepl 168 164427 0 162407 135 32 103 107 0 357 10 vmsppl 488 2500 0 2471 6 1 5 5 0 8 0 rwobjpl 80 44495 0 43221 39 8 31 33 0 8 1 pdppl 4096 5037 0 4961 149 67 82 85 0 8 6 pvpl 32 20453 0 0 167 2 165 165 0 265 0 pmappl 256 2514 0 2476 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 389 0 112 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833affa3) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f02e7,ffffffff8340dbbd,1cb,ffffffff833aa8a9) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003c4477e0) at pipex_unlink_session_locked+0x429 pipex_destroy_all_sessions(ffff80000149c000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff80000149c000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,81,2000,ffff8000fffeba10) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80003c429c40) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd800c57db18,81,fffffd80097fd618,ffff8000fffeba10) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806ca72358,ffff8000fffeba10) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806ca72358,ffff8000fffeba10) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806ca72358,ffff8000fffeba10) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806ca72358,ffff8000fffeba10) at closef+0x192 sys/kern/kern_descrip.c:1264 syscall(ffff80003c429ea0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c429ea0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc0837a21ee0, count: -13 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299ddff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299ddff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -5