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(ffffffff834489d1) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8348a893,ffffffff834a26a1,1cb,ffffffff8344193c) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003afe1bf8) at pipex_unlink_session_locked+0x429 pipex_destroy_all_sessions(ffff800001652000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001652000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,1,2000,ffff8000fffee7e0) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80003c40f510) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8070b82998,1,fffffd80097fd618,ffff8000fffee7e0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80616802f0,ffff8000fffee7e0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80616802f0,ffff8000fffee7e0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80616802f0,ffff8000fffee7e0) at fdrop+0x121 sys/kern/kern_descrip.c:1281 closef(fffffd80616802f0,ffff8000fffee7e0) at closef+0x192 sys/kern/kern_descrip.c:1265 fdfree(ffff8000fffee7e0) at fdfree+0x116 sys/kern/kern_descrip.c:1196 exit1(ffff8000fffee7e0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000fffee7e0,ffff80003c40f880,ffff80003c40f7d0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 end trace frame: 0xffff80003c40f870, 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(ffffffff834489d1) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8348a893,ffffffff834a26a1,1cb,ffffffff8344193c) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003afe1bf8) at pipex_unlink_session_locked+0x429 pipex_destroy_all_sessions(ffff800001652000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001652000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,1,2000,ffff8000fffee7e0) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80003c40f510) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8070b82998,1,fffffd80097fd618,ffff8000fffee7e0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80616802f0,ffff8000fffee7e0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80616802f0,ffff8000fffee7e0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80616802f0,ffff8000fffee7e0) at fdrop+0x121 sys/kern/kern_descrip.c:1281 closef(fffffd80616802f0,ffff8000fffee7e0) at closef+0x192 sys/kern/kern_descrip.c:1265 fdfree(ffff8000fffee7e0) at fdfree+0x116 sys/kern/kern_descrip.c:1196 exit1(ffff8000fffee7e0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000fffee7e0,ffff80003c40f880,ffff80003c40f7d0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c40f880) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c40f880) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x75540f825db0, count: -16 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c40f2e0 rbx 0xffffffff83877e07 cpu_info_full_primary+0x2e07 rdx 0 rcx 0xffff8000fffee7e0 rax 0xffffffff83876ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x76f2da1d447cc196 r11 0x539c22ca3e6e3967 r12 0xffffffff83877c08 cpu_info_full_primary+0x2c08 r13 0 r14 0 r15 0x1 rip 0xffffffff82a473b5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c40f2d0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=34568 pid=18720 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000fffee7e0 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff8000fffee018,0xffff80003c3f7cc0 process=0xffff80002a3a0e88 user=0xffff80003c40a000, vmspace=0xfffffd800b9d6d80 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 60772 339282 24673 0 2 0 syz-executor 60772 85255 24673 0 3 0x4000080 fsleep syz-executor 83856 335001 24449 0 3 0 vmmaplk syz-executor 83856 453918 24449 0 2 0x4000000 syz-executor 39181 76722 25816 0 2 0 syz-executor 39181 179747 25816 0 3 0x4000080 kqsel syz-executor 39181 149382 25816 0 3 0x4000080 fsleep syz-executor 39181 453028 25816 0 3 0x4000080 fsleep syz-executor 19177 238136 51269 0 2 0x100002 ndp 51269 78098 8880 0 3 0x10008a sigsusp sh 22505 283492 82324 -1 3 0x90 nanoslp syz-executor 22505 459594 82324 -1 3 0x4000090 kqsel syz-executor 22505 474599 82324 -1 3 0x4000090 fsleep syz-executor 26784 208347 77370 0 3 0x80 nanoslp syz-executor 26784 140871 77370 0 2 0x4000000 syz-executor 26784 120181 77370 0 3 0x4000000 inode syz-executor 26784 317648 77370 0 3 0x4000080 fsleep syz-executor 8880 193386 33376 0 3 0x82 wait syz-executor 84576 404896 1 0 3 0x100083 ttyopn getty 77370 68458 33376 0 3 0x82 nanoslp syz-executor 98435 452231 33376 0 3 0x82 nanoslp syz-executor 16593 510305 59178 27 3 0x1100092 kqread sshd-auth 59178 337496 52718 0 3 0x82 kqread sshd-session 25816 389646 33376 0 3 0x82 nanoslp syz-executor 65754 219131 33376 0 3 0x82 nanoslp syz-executor 24673 384324 33376 0 3 0x82 nanoslp syz-executor 82324 188613 33376 0 3 0x82 nanoslp syz-executor 24449 208103 33376 0 3 0x82 nanoslp syz-executor 33376 139721 88768 0 2 0x2 syz-executor 88768 376973 19812 0 3 0x10008a sigsusp ksh 19812 9785 28899 0 3 0x98 kqread sshd-session 28899 458208 52718 0 3 0x92 kqread sshd-session 52718 26570 1 0 3 0x88 kqread sshd 37496 123418 57702 74 3 0x1100092 bpf pflogd 57702 285866 1 0 3 0x80 sbwait pflogd 33439 133793 86598 73 3 0x1100090 kqread syslogd 86598 318338 1 0 3 0x100082 sbwait syslogd 29051 369012 1 0 2 0x100001 resolvd 39923 328433 13093 77 2 0x100012 dhcpleased 94240 470022 13093 77 3 0x100092 kqread dhcpleased 13093 509431 1 0 3 0x80 kqread dhcpleased 6032 348943 0 0 3 0x14200 bored smr 36238 128600 0 0 2 0x14200 zerothread 28935 51759 0 0 3 0x14200 aiodoned aiodoned 44971 195698 0 0 3 0x14200 syncer update 80554 357416 0 0 3 0x14200 cleaner cleaner 65180 120838 0 0 3 0x14200 reaper reaper 68224 203071 0 0 3 0x14200 pgdaemon pagedaemon 28448 465122 0 0 3 0x14200 bored viomb 41115 221801 0 0 3 0x40014200 acpi0 acpi0 78886 6948 0 0 3 0x40014200 idle1 33118 122225 0 0 3 0x14200 bored softnet1 29416 44520 0 0 3 0x14200 bored softnet0 45278 452749 0 0 3 0x14200 bored systqmp 93337 258971 0 0 3 0x14200 bored systq 56629 507323 0 0 3 0x14200 tmoslp softclockmp 26629 186556 0 0 3 0x40014200 tmoslp softclock 50940 424008 0 0 3 0x40014200 idle0 1 264336 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 (0xffffffff838c8550) #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:1281 #8 closef+0x192 sys/kern/kern_descrip.c:1265 #9 fdfree+0x116 sys/kern/kern_descrip.c:1196 #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:783 #13 Xsyscall+0x128 CPU 1: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd807708b210) #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 pmap_do_remove+0xa9 rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #2 pmap_do_remove+0xa9 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #2 pmap_do_remove+0xa9 sys/arch/amd64/amd64/pmap.c:1824 #3 uvm_unmap_kill_entry_withlock+0x269 sys/uvm/uvm_map.c:1869 #4 uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline] #4 uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2497 #5 exit1+0x6fc sys/kern/kern_exit.c:260 #6 sys_exit+0x1a sys/kern/kern_exit.c:-1 #7 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #7 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #8 Xsyscall+0x128 Process 60772 (syz-executor) thread 0xffff80003c3f62c0 (339282) exclusive rwlock vmmaplk r = 0 (0xfffffd806c7aa120) #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 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5171 #3 uvm_map_protect+0xe0 sys/uvm/uvm_map.c:3075 #4 sys_mprotect+0x351 sys/uvm/uvm_mmap.c:590 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #6 Xsyscall+0x128 Process 83856 (syz-executor) thread 0xffff80003c3f74e8 (453918) exclusive rwlock vmmaplk r = 0 (0xfffffd800b9d6310) #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_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880 #3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 Process 26784 (syz-executor) thread 0xffff80003c3f67f0 (140871) exclusive rrwlock inode r = 0 (0xfffffd806e0d7b10) #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+0x2bd sys/kern/sys_generic.c:384 #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:783 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11106 12110K 12473K 166960K 13571 0 pcb 17 19K 22K 166960K 408 0 rtable 252 13K 13K 166960K 826 0 pf 37 18K 82K 166960K 188 0 ifaddr 43 8K 8K 166960K 134 0 ifgroup 55 2K 3K 166960K 230 0 sysctl 4 1K 9K 166960K 12 0 counters 72 37K 39K 166960K 280 0 ioctlops 0 0K 4K 166960K 1727 0 iov 0 0K 28K 166960K 70 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1350 85K 86K 166960K 2581 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 14 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 122 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 102K 166960K 1387 0 sigio 0 0K 0K 166960K 16 0 proc 73 115K 164K 166960K 807 0 subproc 72 4K 4K 166960K 108 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 269 0 in_multi 90 6K 7K 166960K 189 0 ether_multi 1 0K 0K 166960K 14 0 mrt 3 0K 0K 166960K 33 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 271 1208K 1208K 166960K 271 0 exec 0 0K 1K 166960K 608 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 257 178K 195K 166960K 14643 0 UVM aobj 76 21K 21K 166960K 80 0 pinsyscall 48 96K 106K 166960K 2663 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 102 0 NDP 14 0K 2K 166960K 98 0 temp 142 9084K 9159K 166960K 61402 0 kqueue 15 24K 34K 166960K 284 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 120 138 0 134 1 0 1 1 0 8 0 rtentry 176 242 0 146 6 0 6 6 0 8 0 unpcb 144 729 0 706 5 4 1 2 0 8 0 syncache 336 6 0 6 3 3 0 1 0 8 0 tcpcb 736 490 0 484 19 13 6 10 0 8 5 arp 136 28 0 12 1 0 1 1 0 8 0 inpcb 328 1716 0 1705 31 23 8 13 0 8 6 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 2 0 2 1 1 0 1 0 8 0 nd6 152 40 0 16 2 0 2 2 0 8 1 pkpcb 40 10 0 10 4 3 1 1 0 8 1 kcovpl 48 12 0 4 1 0 1 1 0 8 0 ppxss 1192 85 0 84 2 1 1 1 0 8 0 pppxif 1504 6 0 6 3 3 0 1 0 8 0 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 11 0 6 1 0 1 1 0 482 0 pffrnode 88 11 0 6 1 0 1 1 0 8 0 pffrent 40 19 0 14 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 pfsrclim 320 1 0 1 1 1 0 1 0 8 0 pfstitem 24 109 0 55 1 0 1 1 0 8 0 pfstkey 128 112 0 58 2 0 2 2 0 8 0 pfstate 448 110 0 57 8 1 7 7 0 8 0 pfrule 1360 22 0 17 2 1 1 2 0 8 0 rttmr 136 3 0 3 2 2 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 744 0 321 34 7 27 31 0 8 0 art_table 40 747 0 321 5 0 5 5 0 8 0 art_node 32 242 0 157 2 1 1 2 0 8 0 sysvmsgpl 40 61 0 43 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 120 0 110 1 0 1 1 0 8 0 shmpl 112 69 0 4 2 0 2 2 0 8 0 dirhash 1024 32 0 15 3 0 3 3 0 8 0 dino2pl 256 4267 0 2796 93 0 93 93 0 8 0 ffsino 296 4267 0 2796 114 0 114 114 0 8 0 nchpl 144 6120 0 4403 64 0 64 64 0 8 0 rtmask 32 24 0 23 3 2 1 1 0 8 0 vnodes 216 4869 0 0 271 0 271 271 0 8 0 namei 1024 21031 0 21031 4 2 2 2 0 8 2 percpumem 16 155 0 104 1 0 1 1 0 8 0 vcpupl 3968 8 0 0 1 0 1 1 0 8 0 vmpool 848 8 0 0 1 0 1 1 0 8 0 kstatmem 264 152 0 124 5 2 3 3 0 8 1 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 38421 0 38421 16 15 1 8 1 8 1 plimitpl 152 514 0 496 1 0 1 1 0 8 0 sigapl 424 1696 0 1645 7 1 6 7 0 8 0 knotepl 120 729 0 0 22 0 22 22 0 8 0 kqueuepl 224 416 0 402 5 3 2 2 0 8 0 pipepl 344 282 0 254 9 6 3 6 0 8 0 fdescpl 528 1677 0 1643 3 0 3 3 0 8 0 filepl 160 10174 0 9943 23 9 14 16 0 8 2 lockfpl 104 642 0 639 2 1 1 2 0 8 0 lockfspl 48 257 0 254 1 0 1 1 0 8 0 sessionpl 144 32 0 22 1 0 1 1 0 8 0 pgrppl 48 106 0 88 1 0 1 1 0 8 0 ucredpl 104 1926 0 1910 1 0 1 1 0 8 0 zombiepl 144 2364 0 2362 1 0 1 1 0 8 0 processpl 1232 1696 0 1645 5 0 5 5 0 8 0 procpl 664 3931 0 3870 8 2 6 7 0 8 0 sosppl 176 11 0 11 4 4 0 1 0 8 0 sockpl 752 2636 0 2598 39 27 12 18 0 8 7 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 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 8 0 0 1 0 1 1 0 8 0 mcl4k 4096 126 0 0 16 0 16 16 0 8 0 mcl2k 2048 28 0 0 4 0 4 4 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 1202 0 0 73 0 73 73 0 8 0 bufpl 280 15300 0 9170 439 0 439 439 0 8 0 anonpl 32 14344 0 0 116 0 116 116 0 246 0 amapchunkpl 152 49458 0 48958 45 17 28 35 0 158 2 amappl16 200 5818 0 5773 85 71 14 33 0 8 8 amappl15 192 9 0 9 2 2 0 1 0 8 0 amappl14 184 493 0 491 1 0 1 1 0 8 0 amappl13 176 136 0 121 1 0 1 1 0 8 0 amappl12 168 1957 0 1925 2 0 2 2 0 8 0 amappl11 160 4 0 4 1 1 0 1 0 8 0 amappl10 152 77 0 62 1 0 1 1 0 8 0 amappl9 144 275 0 275 1 1 0 1 0 8 0 amappl8 136 121 0 118 1 0 1 1 0 8 0 amappl7 128 171 0 155 1 0 1 1 0 8 0 amappl6 120 211 0 209 1 0 1 1 0 8 0 amappl5 112 99 0 85 1 0 1 1 0 8 0 amappl4 104 350 0 330 1 0 1 1 0 8 0 amappl3 96 10076 0 9964 4 0 4 4 0 8 0 amappl2 88 606 0 528 2 0 2 2 0 8 0 amappl1 80 16471 0 15670 23 4 19 20 0 8 0 amappl 88 13610 0 13441 5 0 5 5 0 92 0 uvmvnodes 80 155 0 0 4 0 4 4 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 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 254 0 254 2 1 1 1 0 8 1 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 20 0 19 1 0 1 1 0 8 0 aobjpl 72 79 0 4 2 0 2 2 0 8 0 uaddrrnd 24 1677 0 1643 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1677 0 1643 1 0 1 1 0 8 0 vmmpekpl 168 15161 0 15106 3 0 3 3 0 8 0 vmmpepl 168 114402 0 112173 149 28 121 125 0 357 10 vmsppl 488 1676 0 1642 6 1 5 5 0 8 0 rwobjpl 80 33367 0 31949 47 8 39 39 0 8 0 pdppl 4096 3377 0 3292 126 41 85 86 0 8 0 pvpl 32 25295 0 0 204 0 204 204 0 265 0 pmappl 256 1684 0 1642 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 398 0 71 10 0 10 10 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(ffffffff834489d1) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8348a893,ffffffff834a26a1,1cb,ffffffff8344193c) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003afe1bf8) at pipex_unlink_session_locked+0x429 pipex_destroy_all_sessions(ffff800001652000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001652000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,1,2000,ffff8000fffee7e0) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80003c40f510) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8070b82998,1,fffffd80097fd618,ffff8000fffee7e0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80616802f0,ffff8000fffee7e0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80616802f0,ffff8000fffee7e0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80616802f0,ffff8000fffee7e0) at fdrop+0x121 sys/kern/kern_descrip.c:1281 closef(fffffd80616802f0,ffff8000fffee7e0) at closef+0x192 sys/kern/kern_descrip.c:1265 fdfree(ffff8000fffee7e0) at fdfree+0x116 sys/kern/kern_descrip.c:1196 exit1(ffff8000fffee7e0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000fffee7e0,ffff80003c40f880,ffff80003c40f7d0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c40f880) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c40f880) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x75540f825db0, count: -16 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299bdff0) 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(ffffffff83966ac0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83966ac0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 exit1(ffff800036fd0550,0,0,1) at exit1+0x701 sys/kern/kern_exit.c:260 sys_exit(ffff800036fd0550,ffff80003c3e5060,ffff80003c3e4fb0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c3e5060) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3e5060) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e0efa099190, count: 7 ddb{1}> trace x86_ipi_db(ffff8000299bdff0) 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(ffffffff83966ac0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83966ac0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 exit1(ffff800036fd0550,0,0,1) at exit1+0x701 sys/kern/kern_exit.c:260 sys_exit(ffff800036fd0550,ffff80003c3e5060,ffff80003c3e4fb0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c3e5060) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3e5060) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e0efa099190, count: -8