login: 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 194507 31511 0 0x2 0x1 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833b761f) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f2604,ffffffff8340ebf5,1cb,ffffffff833ac17c) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003c4360a0) at pipex_unlink_session_locked+0x429 pipex_destroy_all_sessions(ffff80000159a800) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff80000159a800) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,81,2000,ffff800030bd4fb8) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff8000303d65f0) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80751f4298,81,fffffd80097fd270,ffff800030bd4fb8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c197600,ffff800030bd4fb8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c197600,ffff800030bd4fb8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c197600,ffff800030bd4fb8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c197600,ffff800030bd4fb8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800030bd4fb8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800030bd4fb8,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800030bd4fb8,ffff8000303d6960,ffff8000303d68b0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 end trace frame: 0xffff8000303d6950, 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{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(ffffffff833b761f) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f2604,ffffffff8340ebf5,1cb,ffffffff833ac17c) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003c4360a0) at pipex_unlink_session_locked+0x429 pipex_destroy_all_sessions(ffff80000159a800) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff80000159a800) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,81,2000,ffff800030bd4fb8) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff8000303d65f0) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80751f4298,81,fffffd80097fd270,ffff800030bd4fb8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c197600,ffff800030bd4fb8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c197600,ffff800030bd4fb8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c197600,ffff800030bd4fb8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c197600,ffff800030bd4fb8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800030bd4fb8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800030bd4fb8,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800030bd4fb8,ffff8000303d6960,ffff8000303d68b0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff8000303d6960) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000303d6960) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x712c474b32a0, count: -16 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff8000303d63c0 rbx 0xffffffff83879e07 cpu_info_full_primary+0x2e07 rdx 0 rcx 0xffff800030bd4fb8 rax 0xffffffff83878ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x21071a44935b393d r11 0x14b51931d8c47d43 r12 0xffffffff83879c08 cpu_info_full_primary+0x2c08 r13 0 r14 0 r15 0x1 rip 0xffffffff817c1d35 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000303d63b0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=128507 pid=57712 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff800030bd4fb8 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80002a26fca0,0xffff800030bd2fc0 process=0xffff8000ffff21c8 user=0xffff8000303d1000, vmspace=0xfffffd806ba0bd80 estcpu=36, cpticks=3, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 52786 138686 94566 0 2 0 syz-executor 6086 264595 52664 0 2 0 syz-executor 6086 123690 52664 0 3 0x4000080 fsleep syz-executor 98138 62965 69019 0 2 0 syz-executor 98138 310322 69019 0 2 0x4000000 syz-executor 98138 515770 69019 0 3 0x4000080 rest syz-executor 98138 518681 69019 0 3 0x4000080 bell syz-executor 21046 69919 14509 0 2 0 syz-executor 21046 404583 14509 0 2 0x4000000 syz-executor 21046 452229 14509 0 3 0x4000080 fsleep syz-executor 54997 241262 69469 0 3 0x3000 suspend syz-executor 54997 329889 69469 0 3 0x4081000 biowait syz-executor 54997 453618 69469 0 3 0x4081000 inode syz-executor 26156 375436 7199 0 3 0x3000 suspend syz-executor 26156 136271 7199 0 3 0x4081000 biowait syz-executor 3367 22415 1 0 3 0x100083 ttyin getty 82680 491302 31511 0 3 0x82 nanoslp syz-executor 52664 88546 31511 0 3 0x82 nanoslp syz-executor 86705 89076 31511 0 2 0x2 syz-executor 69469 393962 31511 0 3 0x82 nanoslp syz-executor 94566 237012 31511 0 3 0x82 nanoslp syz-executor 7199 285592 31511 0 3 0x82 nanoslp syz-executor 69019 338116 31511 0 3 0x82 nanoslp syz-executor 14509 78048 31511 0 3 0x82 nanoslp syz-executor 31511 194507 49828 0 7 0x3 syz-executor 49828 401000 97991 0 3 0x10008a sigsusp ksh 97991 189577 20561 0 3 0x98 kqread sshd-session 20561 18921 1976 0 3 0x92 kqread sshd-session 1976 144425 1 0 3 0x88 kqread sshd 41795 166052 33069 74 3 0x1100092 bpf pflogd 33069 249011 1 0 3 0x80 sbwait pflogd 84007 105182 9324 73 3 0x1100090 kqread syslogd 9324 48718 1 0 3 0x100082 sbwait syslogd 48802 198495 1 0 3 0x100080 kqread resolvd 64739 472187 60669 77 3 0x100092 kqread dhcpleased 13179 144965 60669 77 3 0x100092 kqread dhcpleased 60669 242524 1 0 3 0x80 kqread dhcpleased 51542 8415 0 0 3 0x14200 bored smr 85807 173115 0 0 3 0x14200 pgzero zerothread 47325 377714 0 0 3 0x14200 aiodoned aiodoned 28856 47328 0 0 3 0x14200 syncer update 84840 250550 0 0 3 0x14200 cleaner cleaner 94326 102615 0 0 3 0x14200 reaper reaper 22699 458220 0 0 3 0x14200 pgdaemon pagedaemon 99053 507977 0 0 3 0x14200 bored viomb 64775 447086 0 0 3 0x40014200 acpi0 acpi0 33928 72214 0 0 3 0x40014200 idle1 23245 251434 0 0 3 0x14200 bored softnet1 82879 486925 0 0 3 0x14200 bored softnet0 13420 26469 0 0 3 0x14200 bored systqmp 1572 456097 0 0 3 0x14200 bored systq 32245 266175 0 0 3 0x14200 tmoslp softclockmp 19946 213428 0 0 3 0x40014200 tmoslp softclock 77466 178025 0 0 3 0x40014200 idle0 1 97981 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 (0xffffffff83869a10) #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 54997 (syz-executor) thread 0xffff800030bd4558 (329889) exclusive rrwlock inode r = 0 (0xfffffd806e8dc6e8) #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 54997 (syz-executor) thread 0xffff80002a26fca0 (453618) exclusive rrwlock inode r = 0 (0xfffffd806eded5a8) #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 domknodat+0xb4 sys/kern/vfs_syscalls.c:1592 #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 26156 (syz-executor) thread 0xffff800030bd22b8 (136271) exclusive rrwlock inode r = 0 (0xfffffd806d173d90) #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 11085 12092K 12325K 166960K 12854 0 pcb 18 12K 12K 166960K 106 0 rtable 206 9K 9K 166960K 472 0 pf 34 17K 82K 166960K 100 0 ifaddr 37 6K 8K 166960K 80 0 ifgroup 51 2K 2K 166960K 123 0 sysctl 3 1K 9K 166960K 14 0 counters 70 36K 38K 166960K 272 0 ioctlops 0 0K 4K 166960K 1692 0 iov 0 0K 16K 166960K 29 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1402 88K 89K 166960K 1737 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 10 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 31 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 677 0 sigio 0 0K 0K 166960K 15 0 proc 72 115K 164K 166960K 631 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 40 0 in_multi 78 5K 7K 166960K 131 0 ether_multi 1 0K 0K 166960K 4 0 mrt 1 0K 0K 166960K 3 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 538 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 175K 189K 166960K 8073 0 UVM aobj 11 10K 10K 166960K 11 0 pinsyscall 42 84K 102K 166960K 1846 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 32 0 NDP 11 0K 2K 166960K 55 0 temp 76 8680K 8748K 166960K 21268 0 kqueue 13 20K 28K 166960K 107 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 120 135 0 132 3 2 1 3 0 8 0 rtentry 176 127 0 43 6 0 6 6 0 8 0 unpcb 144 296 0 279 2 1 1 2 0 8 0 syncache 336 5 0 5 1 1 0 1 0 8 0 tcpcb 736 294 0 288 10 8 2 7 0 8 1 arp 136 20 0 4 1 0 1 1 0 8 0 inpcb 328 604 0 593 10 8 2 7 0 8 0 nd6 152 28 0 6 1 0 1 1 0 8 0 pkpcb 40 7 0 7 2 1 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1192 93 0 92 2 1 1 1 0 8 0 pppxif 1576 3 0 3 1 1 0 1 0 8 0 pffrag 232 10 0 4 1 0 1 1 0 482 0 pffrnode 88 6 0 2 1 0 1 1 0 8 0 pffrent 40 17 0 11 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 2 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 56 0 13 1 0 1 1 0 8 0 pfstkey 128 56 0 13 2 0 2 2 0 8 0 pfstate 448 56 0 13 5 0 5 5 0 8 0 pfrule 1344 24 0 18 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 519 0 177 29 5 24 29 0 8 2 art_table 40 520 0 177 5 0 5 5 0 8 0 art_node 32 127 0 53 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 1 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 28 0 18 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2577 0 1066 96 0 96 96 0 8 0 ffsino 296 2577 0 1066 117 0 117 117 0 8 0 nchpl 144 3534 0 1825 64 0 64 64 0 8 0 rtmask 32 6 0 5 3 2 1 1 0 8 0 vnodes 216 2855 0 0 159 0 159 159 0 8 0 namei 1024 11936 0 11935 2 1 1 1 0 8 0 percpumem 16 151 0 101 1 0 1 1 0 8 0 vcpupl 3968 4 0 0 1 0 1 1 0 8 0 vmpool 848 4 0 0 1 0 1 1 0 8 0 kstatmem 264 74 0 50 3 1 2 3 0 8 0 scsiplug 72 4 0 4 3 2 1 1 0 8 1 scxspl 216 18524 0 18522 10 2 8 8 1 8 7 plimitpl 152 130 0 111 1 0 1 1 0 8 0 sigapl 424 989 0 942 7 1 6 7 0 8 0 knotepl 120 353 0 0 11 0 11 11 0 8 0 kqueuepl 224 184 0 175 3 1 2 2 0 8 1 pipepl 344 161 0 134 3 0 3 3 0 8 0 fdescpl 528 972 0 941 3 0 3 3 0 8 0 filepl 160 5464 0 5239 18 4 14 15 0 8 3 lockfpl 104 329 0 327 2 1 1 2 0 8 0 lockfspl 48 72 0 70 1 0 1 1 0 8 0 sessionpl 144 25 0 16 1 0 1 1 0 8 0 pgrppl 48 38 0 21 1 0 1 1 0 8 0 ucredpl 104 647 0 634 1 0 1 1 0 8 0 zombiepl 144 977 0 974 2 1 1 1 0 8 0 processpl 1232 989 0 942 5 1 4 5 0 8 0 procpl 664 1907 0 1851 6 0 6 6 0 8 0 sosppl 176 3 0 3 2 1 1 1 0 8 1 sockpl 752 1065 0 1034 21 16 5 18 0 8 0 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 2 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 123 0 0 16 0 16 16 0 8 0 mcl2k 2048 25 0 0 4 0 4 4 0 8 0 mtagpl 96 15 0 0 1 0 1 1 0 8 0 mbufpl 256 172 0 0 11 0 11 11 0 8 0 bufpl 280 8158 0 2022 439 0 439 439 0 8 0 anonpl 32 11511 0 0 93 0 93 93 0 246 0 amapchunkpl 152 26260 0 25695 44 16 28 28 0 158 2 amappl16 200 3507 0 3224 38 23 15 27 0 8 0 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 7 0 6 1 0 1 1 0 8 0 amappl13 176 440 0 439 1 0 1 1 0 8 0 amappl12 168 1343 0 1302 3 0 3 3 0 8 0 amappl11 160 5 0 5 1 1 0 1 0 8 0 amappl10 152 47 0 33 1 0 1 1 0 8 0 amappl9 144 253 0 253 1 1 0 1 0 8 0 amappl8 136 26 0 24 1 0 1 1 0 8 0 amappl7 128 91 0 90 1 0 1 1 0 8 0 amappl6 120 292 0 278 1 0 1 1 0 8 0 amappl5 112 72 0 62 1 0 1 1 0 8 0 amappl4 104 441 0 411 1 0 1 1 0 8 0 amappl3 96 4428 0 4335 4 1 3 3 0 8 0 amappl2 88 1098 0 1021 2 0 2 2 0 8 0 amappl1 80 11784 0 11190 14 1 13 14 0 8 0 amappl 88 7240 0 7071 5 0 5 5 0 92 0 uvmvnodes 80 120 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 7 0 7 2 1 1 1 0 8 1 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 10 0 0 1 0 1 1 0 8 0 uaddrrnd 24 972 0 941 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 972 0 941 1 0 1 1 0 8 0 vmmpekpl 168 9473 0 9431 3 0 3 3 0 8 0 vmmpepl 168 68424 0 66234 117 19 98 108 0 357 0 vmsppl 488 971 0 941 6 1 5 5 0 8 0 rwobjpl 80 21176 0 19860 34 6 28 32 0 8 0 pdppl 4096 1959 0 1886 111 36 75 85 0 8 2 pvpl 32 18322 0 0 149 1 148 148 0 265 0 pmappl 256 975 0 941 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 300 0 53 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(ffffffff833b761f) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f2604,ffffffff8340ebf5,1cb,ffffffff833ac17c) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003c4360a0) at pipex_unlink_session_locked+0x429 pipex_destroy_all_sessions(ffff80000159a800) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff80000159a800) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,81,2000,ffff800030bd4fb8) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff8000303d65f0) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80751f4298,81,fffffd80097fd270,ffff800030bd4fb8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c197600,ffff800030bd4fb8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c197600,ffff800030bd4fb8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c197600,ffff800030bd4fb8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c197600,ffff800030bd4fb8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800030bd4fb8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800030bd4fb8,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800030bd4fb8,ffff8000303d6960,ffff8000303d68b0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff8000303d6960) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000303d6960) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x712c474b32a0, count: -16 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 __mp_lock(ffffffff83970900) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83970900) at __mp_lock+0x192 sys/kern/kern_lock.c:173 ktrstruct(ffff80002a262540,ffffffff833e8c25,ffff80000159b958,8) at ktrstruct+0xdf sys/kern/kern_ktrace.c:313 dopselect(ffff80002a262540,35,7bcf83aced10,0,0,ffff80002a260120,a0ac4762721f9f39,ffff80002a2601c0) at dopselect+0xc6b sys/kern/sys_generic.c:720 sys_pselect(ffff80002a262540,ffff80002a260270,ffff80002a2601c0) at sys_pselect+0x25a sys/kern/sys_generic.c:589 syscall(ffff80002a260270) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a260270) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bcf83acecc0, count: 6 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 __mp_lock(ffffffff83970900) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83970900) at __mp_lock+0x192 sys/kern/kern_lock.c:173 ktrstruct(ffff80002a262540,ffffffff833e8c25,ffff80000159b958,8) at ktrstruct+0xdf sys/kern/kern_ktrace.c:313 dopselect(ffff80002a262540,35,7bcf83aced10,0,0,ffff80002a260120,a0ac4762721f9f39,ffff80002a2601c0) at dopselect+0xc6b sys/kern/sys_generic.c:720 sys_pselect(ffff80002a262540,ffff80002a260270,ffff80002a2601c0) at sys_pselect+0x25a sys/kern/sys_generic.c:589 syscall(ffff80002a260270) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a260270) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bcf83acecc0, count: -9