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 db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833b5922) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f2bbe,ffffffff8340e2f3,1cb,ffffffff833ab4b5) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003c422548) at pipex_unlink_session_locked+0x429 pipex_destroy_all_sessions(ffff800001582000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001582000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,81,2000,ffff80002a261ca0) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80002ebc3f80) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80787b7620,81,fffffd80097fd270,ffff80002a261ca0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8062980070,ffff80002a261ca0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8062980070,ffff80002a261ca0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8062980070,ffff80002a261ca0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8062980070,ffff80002a261ca0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80002a261ca0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80002a261ca0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002a261ca0,ffff80002ebc42f0,ffff80002ebc4240) at sys_exit+0x1a sys/kern/kern_exit.c:-1 end trace frame: 0xffff80002ebc42e0, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: kernel diagnostic assertion "rn != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/net/pipex.c", line 459 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833b5922) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f2bbe,ffffffff8340e2f3,1cb,ffffffff833ab4b5) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003c422548) at pipex_unlink_session_locked+0x429 pipex_destroy_all_sessions(ffff800001582000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001582000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,81,2000,ffff80002a261ca0) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80002ebc3f80) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80787b7620,81,fffffd80097fd270,ffff80002a261ca0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8062980070,ffff80002a261ca0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8062980070,ffff80002a261ca0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8062980070,ffff80002a261ca0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8062980070,ffff80002a261ca0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80002a261ca0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80002a261ca0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002a261ca0,ffff80002ebc42f0,ffff80002ebc4240) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002ebc42f0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002ebc42f0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7af39bf43af0, count: -16 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002ebc3d50 rbx 0xffff8000299dee07 rdx 0 rcx 0xffff80002a261ca0 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x5502f9ff65e0af7a r11 0x81c01c6080efcb42 r12 0xffff8000299dec08 r13 0 r14 0 r15 0x1 rip 0xffffffff81872d75 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002ebc3d40 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=179848 pid=28270 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a261ca0 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80002a260018,0xffff80003c41f4f8 process=0xffff8000fffee698 user=0xffff80002ebbf000, vmspace=0xfffffd806f5f81f0 estcpu=36, cpticks=4, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 55618 397969 68810 0 3 0x80 nanoslp syz-executor 55618 374659 68810 0 3 0x4000080 fsleep syz-executor 55618 258860 68810 0 3 0x4000080 fsleep syz-executor 22392 297149 75165 0 3 0x80 nanoslp syz-executor 22392 294016 75165 0 3 0x4000080 ttyout syz-executor 22392 109194 75165 0 3 0x4000080 fsleep syz-executor 63305 191151 25746 0 3 0x80 nanoslp syz-executor 63305 258042 25746 0 3 0x4000080 sbwait syz-executor 63305 47810 25746 0 3 0x4000080 fsleep syz-executor 63305 151422 25746 0 3 0x4000080 fsleep syz-executor 26548 355287 70396 0 3 0x3000 suspend syz-executor 26548 156167 70396 0 3 0x4081000 biowait syz-executor 47978 111355 10931 0 3 0x2 biowait syz-executor 74109 437275 1 0 3 0x100083 ttyin getty 75333 374074 85993 0 3 0x100082 sbwait arp 85993 178536 407 0 3 0x10008a sigsusp sh 83442 400330 10931 0 3 0x82 nanoslp syz-executor 407 417505 10931 0 3 0x82 wait syz-executor 68810 103274 10931 0 3 0x82 nanoslp syz-executor 70396 442203 10931 0 3 0x82 nanoslp syz-executor 52257 378005 10931 0 3 0x82 nanoslp syz-executor 75165 58471 10931 0 3 0x82 nanoslp syz-executor 25746 204218 10931 0 3 0x82 nanoslp syz-executor 10931 21446 6007 0 3 0x82 kqread syz-executor 6007 367515 45759 0 3 0x10008a sigsusp ksh 45759 324086 62069 0 3 0x98 kqread sshd-session 62069 75597 25853 0 3 0x92 kqread sshd-session 25853 267944 1 0 3 0x88 kqread sshd 99725 463186 44010 74 3 0x1100092 bpf pflogd 44010 289316 1 0 3 0x80 sbwait pflogd 77743 431098 37763 73 3 0x1100090 kqread syslogd 37763 13058 1 0 3 0x100082 sbwait syslogd 17533 88135 1 0 3 0x100080 kqread resolvd 34999 23163 99846 77 3 0x100092 kqread dhcpleased 15154 373023 99846 77 3 0x100092 kqread dhcpleased 99846 198481 1 0 3 0x80 kqread dhcpleased 59193 523107 0 0 3 0x14200 bored smr 42429 512659 0 0 2 0x14200 zerothread 1776 98818 0 0 3 0x14200 aiodoned aiodoned 42092 349107 0 0 3 0x14200 syncer update 57737 455928 0 0 3 0x14200 cleaner cleaner 74859 1742 0 0 3 0x14200 reaper reaper 73454 396132 0 0 3 0x14200 pgdaemon pagedaemon 77810 248327 0 0 3 0x14200 bored viomb 37633 378375 0 0 3 0x40014200 acpi0 acpi0 63068 331746 0 0 3 0x40014200 idle1 73756 260001 0 0 3 0x14200 bored softnet1 12401 404758 0 0 2 0x14200 softnet0 73182 78847 0 0 3 0x14200 smrbar systqmp 321 166949 0 0 3 0x14200 bored systq 10612 422304 0 0 3 0x14200 tmoslp softclockmp 37553 87203 0 0 3 0x40014200 tmoslp softclock 42866 252643 0 0 3 0x40014200 idle0 1 401023 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex /syzkaller/managers/multicore/kernel/sys/net/pipex.c:78 r = 0 (0xffffffff8386b460) #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 fdfree+0x116 sys/kern/kern_descrip.c:1195 #10 exit1+0x576 sys/kern/kern_exit.c:215 #11 sys_exit+0x1a sys/kern/kern_exit.c:-1 #12 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #13 Xsyscall+0x128 Process 26548 (syz-executor) thread 0xffff8000fffe9ca8 (156167) exclusive rrwlock inode r = 0 (0xfffffd806c2ef208) #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 Process 47978 (syz-executor) thread 0xffff80003c41f250 (111355) exclusive rrwlock inode r = 0 (0xfffffd806c2ef7d0) #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 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806f183368) #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 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 Process 12401 (softnet0) thread 0xffff8000ffffea60 (404758) shared rwlock softnet0 r = 0 (0xffff80000002c078) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 Process 73182 (systqmp) thread 0xffff8000ffffe298 (78847) shared rwlock systqmp r = 0 (0xffffffff83851fb8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11100 12172K 12385K 166960K 12984 0 pcb 18 12K 12K 166960K 127 0 rtable 192 10K 10K 166960K 488 0 pf 33 17K 19K 166960K 141 0 ifaddr 34 5K 7K 166960K 104 0 ifgroup 52 2K 2K 166960K 175 0 sysctl 4 1K 9K 166960K 10 0 counters 72 37K 38K 166960K 304 0 ioctlops 0 0K 4K 166960K 1688 0 iov 0 0K 16K 166960K 29 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1399 88K 89K 166960K 1994 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 9 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 26 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 97K 166960K 730 0 sigio 0 0K 0K 166960K 9 0 proc 72 115K 147K 166960K 622 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 74 0 in_multi 66 4K 6K 166960K 129 0 ether_multi 1 0K 0K 166960K 8 0 mrt 1 0K 0K 166960K 16 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 229 1023K 1023K 166960K 229 0 exec 0 0K 1K 166960K 509 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 249 154K 171K 166960K 8568 0 UVM aobj 17 8K 8K 166960K 19 0 pinsyscall 43 86K 108K 166960K 1893 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 58 0 NDP 12 0K 1K 166960K 72 0 temp 61 8675K 8741K 166960K 19893 0 kqueue 15 24K 26K 166960K 139 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> 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 75 0 71 1 0 1 1 0 8 0 rtentry 176 143 0 71 5 0 5 5 0 8 0 unpcb 144 571 0 553 11 5 6 6 0 8 5 syncache 336 8 0 8 2 2 0 1 0 8 0 tcpcb 736 223 0 218 7 6 1 4 0 8 0 arp 136 21 0 8 1 0 1 1 0 8 0 inpcb 328 808 0 797 10 8 2 7 0 8 1 nd6 152 29 0 11 1 0 1 1 0 8 0 pkpcb 40 4 0 3 2 1 1 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1192 104 0 103 2 1 1 1 0 8 0 pppxif 1504 8 0 8 2 1 1 1 0 8 1 pffrag 232 14 0 6 1 0 1 1 0 482 0 pffrnode 88 14 0 6 1 0 1 1 0 8 0 pffrent 40 24 0 15 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 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pfstitem 24 63 0 15 1 0 1 1 0 8 0 pfstkey 128 63 0 15 2 0 2 2 0 8 0 pfstate 448 63 0 15 6 0 6 6 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 rttmr 136 2 0 2 2 1 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 700 0 321 32 4 28 28 0 8 2 art_table 40 703 0 321 5 0 5 5 0 8 0 art_node 32 142 0 77 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 6 1 0 1 1 0 8 0 semupl 112 3 0 3 2 2 0 1 0 8 0 semapl 112 24 0 14 1 0 1 1 0 8 0 shmpl 112 12 0 1 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2770 0 1264 95 0 95 95 0 8 0 ffsino 296 2770 0 1264 117 0 117 117 0 8 0 nchpl 144 3853 0 2145 64 0 64 64 0 8 0 rtmask 32 20 0 19 2 1 1 1 0 8 0 vnodes 216 3190 0 0 178 0 178 178 0 8 0 namei 1024 12576 0 12576 2 1 1 1 0 8 1 percpumem 16 167 0 116 1 0 1 1 0 8 0 vcpupl 3968 3 0 0 1 0 1 1 0 8 0 vmpool 848 4 0 1 1 0 1 1 0 8 0 kstatmem 264 112 0 84 4 1 3 3 0 8 1 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 216 18143 0 18141 11 9 2 8 1 8 1 plimitpl 152 175 0 155 1 0 1 1 0 8 0 sigapl 424 1042 0 994 7 1 6 7 0 8 0 knotepl 120 549 0 0 17 0 17 17 0 8 0 kqueuepl 224 337 0 326 7 6 1 5 0 8 0 pipepl 344 166 0 138 3 0 3 3 0 8 0 fdescpl 528 1025 0 994 3 0 3 3 0 8 0 filepl 160 5970 0 5738 20 4 16 16 0 8 5 lockfpl 104 477 0 472 3 1 2 2 0 8 1 lockfspl 48 224 0 219 1 0 1 1 0 8 0 sessionpl 144 27 0 18 1 0 1 1 0 8 0 pgrppl 48 41 0 24 1 0 1 1 0 8 0 ucredpl 104 1102 0 1089 1 0 1 1 0 8 0 zombiepl 144 997 0 994 1 0 1 1 0 8 0 processpl 1232 1042 0 994 5 0 5 5 0 8 0 procpl 664 2086 0 2030 6 0 6 6 0 8 0 sosppl 176 7 0 7 1 1 0 1 0 8 0 sockpl 752 1469 0 1434 25 8 17 17 0 8 13 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 122 0 0 16 0 16 16 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 51 0 0 6 0 6 6 0 8 0 mtagpl 96 10 0 0 1 0 1 1 0 8 0 mbufpl 256 1235 0 0 76 0 76 76 0 8 0 bufpl 280 6790 0 654 439 0 439 439 0 8 0 anonpl 32 10361 0 0 85 1 84 85 0 246 0 amapchunkpl 152 27855 0 27305 35 8 27 27 0 158 3 amappl16 200 4137 0 3949 41 30 11 20 0 8 0 amappl15 192 10 0 10 1 1 0 1 0 8 0 amappl14 184 5 0 5 1 1 0 1 0 8 0 amappl13 176 433 0 431 1 0 1 1 0 8 0 amappl12 168 1409 0 1366 3 0 3 3 0 8 0 amappl11 160 6 0 6 1 1 0 1 0 8 0 amappl10 152 57 0 43 1 0 1 1 0 8 0 amappl9 144 253 0 253 1 1 0 1 0 8 0 amappl8 136 32 0 30 1 0 1 1 0 8 0 amappl7 128 84 0 83 1 0 1 1 0 8 0 amappl6 120 288 0 271 1 0 1 1 0 8 0 amappl5 112 83 0 72 1 0 1 1 0 8 0 amappl4 104 450 0 417 2 0 2 2 0 8 0 amappl3 96 4747 0 4656 4 1 3 3 0 8 0 amappl2 88 1157 0 1080 3 1 2 3 0 8 0 amappl1 80 12417 0 11808 16 1 15 16 0 8 0 amappl 88 7725 0 7558 6 1 5 5 0 92 0 uvmvnodes 80 119 0 0 3 0 3 3 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 128 254 0 254 2 2 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 18 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1025 0 994 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1025 0 994 1 0 1 1 0 8 0 vmmpekpl 168 10141 0 10105 2 0 2 2 0 8 0 vmmpepl 168 72808 0 70741 105 8 97 102 0 357 2 vmsppl 488 1024 0 993 5 0 5 5 0 8 0 rwobjpl 80 22772 0 21512 29 0 29 29 0 8 0 pdppl 4096 2065 0 1991 118 41 77 87 0 8 3 pvpl 32 19098 0 0 155 0 155 155 0 265 0 pmappl 256 1028 0 994 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 376 0 56 10 0 10 10 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8380fff0) 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 __mp_lock(ffffffff83902f00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83902f00) at __mp_lock+0x192 sys/kern/kern_lock.c:173 exit1(ffff80003c41ea88,0,0,1) at exit1+0x701 sys/kern/kern_exit.c:260 sys_exit(ffff80003c41ea88,ffff80003c443610,ffff80003c443560) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c443610) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c443610) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7617603d2b40, count: 7 ddb{0}> trace x86_ipi_db(ffffffff8380fff0) 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 __mp_lock(ffffffff83902f00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83902f00) at __mp_lock+0x192 sys/kern/kern_lock.c:173 exit1(ffff80003c41ea88,0,0,1) at exit1+0x701 sys/kern/kern_exit.c:260 sys_exit(ffff80003c41ea88,ffff80003c443610,ffff80003c443560) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c443610) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c443610) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7617603d2b40, count: -8 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833b5922) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f2bbe,ffffffff8340e2f3,1cb,ffffffff833ab4b5) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003c422548) at pipex_unlink_session_locked+0x429 pipex_destroy_all_sessions(ffff800001582000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001582000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,81,2000,ffff80002a261ca0) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80002ebc3f80) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80787b7620,81,fffffd80097fd270,ffff80002a261ca0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8062980070,ffff80002a261ca0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8062980070,ffff80002a261ca0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8062980070,ffff80002a261ca0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8062980070,ffff80002a261ca0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80002a261ca0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80002a261ca0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002a261ca0,ffff80002ebc42f0,ffff80002ebc4240) at sys_exit+0x1a sys/kern/kern_exit.c:-1 end trace frame: 0xffff80002ebc42e0, count: 0 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833b5922) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f2bbe,ffffffff8340e2f3,1cb,ffffffff833ab4b5) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003c422548) at pipex_unlink_session_locked+0x429 pipex_destroy_all_sessions(ffff800001582000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001582000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,81,2000,ffff80002a261ca0) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80002ebc3f80) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80787b7620,81,fffffd80097fd270,ffff80002a261ca0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8062980070,ffff80002a261ca0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8062980070,ffff80002a261ca0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8062980070,ffff80002a261ca0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8062980070,ffff80002a261ca0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80002a261ca0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80002a261ca0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002a261ca0,ffff80002ebc42f0,ffff80002ebc4240) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002ebc42f0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002ebc42f0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7af39bf43af0, count: -16