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 249901 97582 0 0x2 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833b0138) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833ee2e4,ffffffff83405879,1cb,ffffffff833a2f15) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003c4d69f0) at pipex_unlink_session_locked+0x409 pipex_destroy_all_sessions(ffff800001488800) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001488800) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,81,2000,ffff80003c4b7a28) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80003c419930) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805e6dc460,81,fffffd80097fd410,ffff80003c4b7a28) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b5ca360,ffff80003c4b7a28) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b5ca360,ffff80003c4b7a28) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806b5ca360,ffff80003c4b7a28) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b5ca360,ffff80003c4b7a28) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c4b7a28) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c4b7a28,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c4b7a28,ffff80003c419ca0,ffff80003c419bf0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 end trace frame: 0xffff80003c419c90, 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(ffffffff833b0138) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833ee2e4,ffffffff83405879,1cb,ffffffff833a2f15) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003c4d69f0) at pipex_unlink_session_locked+0x409 pipex_destroy_all_sessions(ffff800001488800) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001488800) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,81,2000,ffff80003c4b7a28) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80003c419930) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805e6dc460,81,fffffd80097fd410,ffff80003c4b7a28) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b5ca360,ffff80003c4b7a28) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b5ca360,ffff80003c4b7a28) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806b5ca360,ffff80003c4b7a28) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b5ca360,ffff80003c4b7a28) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c4b7a28) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c4b7a28,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c4b7a28,ffff80003c419ca0,ffff80003c419bf0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c419ca0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c419ca0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d6f10c1c5e0, count: -16 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c419700 rbx 0xffff8000299eee07 rdx 0 rcx 0xffff80003c4b7a28 rax 0xffff8000299edff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x5c6915f26886d5a3 r11 0x8b54d498e6545fc8 r12 0xffff8000299eec08 r13 0 r14 0 r15 0x1 rip 0xffffffff831264f5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c4196f0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=270840 pid=46119 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c4b7a28 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003c4b6568,0xffff80003c4b7cd0 process=0xffff8000fffe89b8 user=0xffff80003c414000, vmspace=0xfffffd806b542208 estcpu=36, cpticks=4, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 15706 11927 54682 0 3 0x80 nanoslp syz-executor 15706 260394 54682 0 3 0x4000080 ttyretype syz-executor 15706 433602 54682 0 3 0x4000080 fsleep syz-executor 49210 268342 2697 0 3 0x80 nanoslp syz-executor 49210 287554 2697 0 3 0x4000080 fifor syz-executor 49210 159625 2697 0 3 0x4000080 fsleep syz-executor 22581 351869 93740 0 3 0x80 nanoslp syz-executor 22581 522642 93740 0 3 0x4000080 kqsel syz-executor 22581 120093 93740 0 3 0x4000080 kqread syz-executor 22581 3180 93740 0 3 0x4000080 fifow syz-executor 22581 189740 93740 0 3 0x4000080 fsleep syz-executor 97582 249901 41531 0 7 0x2 syz-executor 83090 134443 0 0 3 0x14200 acct acct 54682 243044 41531 0 3 0x82 nanoslp syz-executor 15685 350930 41531 0 3 0x82 nanoslp syz-executor 90111 265938 0 0 3 0x14280 nfsidl nfsio 41332 404827 0 0 3 0x14280 nfsidl nfsio 31701 302551 0 0 3 0x14280 nfsidl nfsio 35545 70622 0 0 3 0x14280 nfsidl nfsio 66291 236560 0 0 3 0x14280 nfsidl nfsio 1100 3872 0 0 3 0x14280 nfsidl nfsio 27142 112797 0 0 3 0x14280 nfsidl nfsio 61237 419507 0 0 3 0x14280 nfsidl nfsio 87777 309656 0 0 3 0x14280 nfsidl nfsio 18675 239296 0 0 3 0x14280 nfsidl nfsio 79814 454924 0 0 3 0x14280 nfsidl nfsio 74317 15273 0 0 3 0x14280 nfsidl nfsio 80583 143381 0 0 3 0x14280 nfsidl nfsio 81724 2627 0 0 3 0x14280 nfsidl nfsio 42708 441831 0 0 3 0x14280 nfsidl nfsio 54814 95518 0 0 3 0x14280 nfsidl nfsio 74301 443900 0 0 3 0x14280 nfsidl nfsio 69841 315402 0 0 3 0x14280 nfsidl nfsio 18989 116603 0 0 3 0x14280 nfsidl nfsio 25722 477924 0 0 3 0x14280 nfsidl nfsio 80316 77297 82955 0 3 0x100082 sbwait arp 82955 172305 35194 0 3 0x10008a sigsusp sh 2697 476863 41531 0 3 0x82 nanoslp syz-executor 57977 271138 41531 0 3 0x2 biowait syz-executor 28812 387344 41531 0 3 0x82 nanoslp syz-executor 93740 500989 41531 0 3 0x82 nanoslp syz-executor 35194 155649 41531 0 3 0x82 wait syz-executor 41531 244767 54641 0 3 0x82 kqread syz-executor 54641 203323 27001 0 3 0x10008a sigsusp ksh 27001 401455 78413 0 3 0x98 kqread sshd-session 78413 256430 84749 0 3 0x92 kqread sshd-session 26106 351136 1 0 3 0x100083 ttyopn getty 84749 472270 1 0 3 0x88 kqread sshd 26512 360725 52160 74 3 0x1100092 bpf pflogd 52160 356877 1 0 3 0x80 sbwait pflogd 34317 278769 12139 73 3 0x1100090 kqread syslogd 12139 5241 1 0 3 0x100082 sbwait syslogd 58407 363567 1 0 3 0x100080 kqread resolvd 19408 121915 62380 77 3 0x100092 kqread dhcpleased 17265 177727 62380 77 3 0x100092 kqread dhcpleased 62380 291616 1 0 3 0x80 kqread dhcpleased 50508 510621 0 0 3 0x14200 bored smr 67493 212311 0 0 2 0x14200 zerothread 82347 516378 0 0 3 0x14200 aiodoned aiodoned 87471 331680 0 0 3 0x14200 syncer update 96449 512269 0 0 3 0x14200 cleaner cleaner 18395 229790 0 0 3 0x14200 reaper reaper 38790 147302 0 0 3 0x14200 pgdaemon pagedaemon 93844 180366 0 0 3 0x14200 bored viomb 4561 243395 0 0 3 0x40014200 acpi0 acpi0 90491 141851 0 0 3 0x40014200 idle1 85125 32258 0 0 3 0x14200 bored softnet1 71732 69821 0 0 3 0x14200 bored softnet0 23816 66378 0 0 3 0x14200 bored systqmp 37476 69494 0 0 3 0x14200 bored systq 95991 253632 0 0 3 0x14200 tmoslp softclockmp 96854 223568 0 0 3 0x40014200 tmoslp softclock 40942 107050 0 0 3 0x40014200 idle0 1 355267 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 (0xffffffff837fb950) #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_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 pipex_destroy_all_sessions+0x2f sys/net/pipex.c:144 #4 pppacclose+0x16f sys/net/if_pppx.c:1335 #5 spec_close+0x417 sys/kern/spec_vnops.c:-1 #6 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 #7 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] #7 vn_closefile+0x12b sys/kern/vfs_vnops.c:615 #8 fdrop+0x121 sys/kern/kern_descrip.c:1280 #9 closef+0x192 sys/kern/kern_descrip.c:1264 #10 fdfree+0x116 sys/kern/kern_descrip.c:1195 #11 exit1+0x576 sys/kern/kern_exit.c:215 #12 sys_exit+0x1a sys/kern/kern_exit.c:-1 #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 Process 57977 (syz-executor) thread 0xffff8000fffefca0 (271138) exclusive rrwlock inode r = 0 (0xfffffd806e993db8) #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+0xa3 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 (0xfffffd806e997db0) #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+0xa3 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 cache_lookup+0x351 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #10 namei+0x7ca sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #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 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10238 11063K 15202K 166960K 13084 0 pcb 17 16K 18K 166960K 412 0 rtable 243 12K 12K 166960K 583 0 pf 38 18K 82K 166960K 228 0 ifaddr 42 8K 8K 166960K 145 0 ifgroup 55 2K 3K 166960K 258 0 sysctl 4 1K 9K 166960K 19 0 counters 72 37K 38K 166960K 276 0 ioctlops 0 0K 4K 166960K 1894 0 iov 0 0K 20K 166960K 83 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1466 92K 92K 166960K 3006 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 122 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 236K 166960K 1648 0 sigio 0 0K 0K 166960K 17 0 proc 75 115K 180K 166960K 745 0 subproc 72 4K 4K 166960K 99 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 179 0 in_multi 88 6K 6K 166960K 179 0 ether_multi 2 0K 0K 166960K 10 0 mrt 4 0K 0K 166960K 17 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 637 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 256 170K 193K 166960K 16750 0 UVM aobj 23 6K 6K 166960K 25 0 pinsyscall 43 86K 106K 166960K 2839 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 103 0 NDP 12 0K 1K 166960K 100 0 temp 83 8680K 8925K 166960K 62331 0 kqueue 14 22K 30K 166960K 322 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 120 200 0 196 3 2 1 2 0 8 0 rtentry 176 176 0 80 5 0 5 5 0 8 0 unpcb 144 1358 0 1334 13 9 4 6 0 8 2 syncache 336 6 0 6 2 2 0 1 0 8 0 tcpqe 32 3 0 3 1 1 0 1 0 8 0 tcpcb 736 569 0 562 14 7 7 7 0 8 5 arp 136 27 0 10 1 0 1 1 0 8 0 inpcb 328 1832 0 1818 20 13 7 7 0 8 4 nd6 152 35 0 10 1 0 1 1 0 8 0 pkpcb 40 8 0 8 3 2 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 mppekey 1024 2 0 2 2 2 0 1 0 8 0 ppxss 1192 77 0 76 2 1 1 1 0 8 0 pppxif 1504 14 0 14 4 3 1 1 0 8 1 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 19 0 7 1 0 1 1 0 482 0 pffrnode 88 18 0 7 1 0 1 1 0 8 0 pffrent 40 77 0 65 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 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pfstitem 24 116 0 29 1 0 1 1 0 8 0 pfstkey 128 119 0 33 3 0 3 3 0 8 0 pfstate 448 116 0 31 10 0 10 10 0 8 0 pfrule 1344 62 0 56 2 1 1 2 0 8 0 rttmr 136 5 0 5 3 2 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 835 0 424 32 4 28 29 0 8 2 art_table 40 837 0 424 5 0 5 5 0 8 0 art_node 32 176 0 92 1 0 1 1 0 8 0 sysvmsgpl 40 23 0 16 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 117 0 107 1 0 1 1 0 8 0 shmpl 112 19 0 1 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 4776 0 3263 95 0 95 95 0 8 0 ffsino 296 4776 0 3263 117 0 117 117 0 8 0 nchpl 144 7067 0 5351 64 0 64 64 0 8 0 rtmask 32 11 0 10 4 3 1 1 0 8 0 vnodes 216 5522 0 0 307 0 307 307 0 8 0 namei 1024 25960 0 25960 3 2 1 2 0 8 1 percpumem 16 153 0 102 1 0 1 1 0 8 0 vcpupl 3968 2 0 0 1 0 1 1 0 8 0 vmpool 840 3 0 1 1 0 1 1 0 8 0 kstatmem 264 158 0 132 6 3 3 3 0 8 1 scsiplug 72 6 0 6 4 3 1 1 0 8 1 scxspl 216 38203 0 38202 10 9 1 8 1 8 0 plimitpl 152 506 0 486 1 0 1 1 0 8 0 sigapl 424 1957 0 1889 8 0 8 8 0 8 0 knotepl 120 600 0 0 18 0 18 18 0 8 0 kqueuepl 224 858 0 845 10 7 3 5 0 8 2 pipepl 344 314 0 286 9 0 9 9 0 8 6 fdescpl 528 1919 0 1888 3 0 3 3 0 8 0 filepl 160 14801 0 14562 38 20 18 20 0 8 7 lockfpl 104 638 0 635 1 0 1 1 0 8 0 lockfspl 48 225 0 222 1 0 1 1 0 8 0 sessionpl 144 26 0 17 1 0 1 1 0 8 0 pgrppl 48 90 0 73 1 0 1 1 0 8 0 ucredpl 104 3157 0 3143 1 0 1 1 0 8 0 zombiepl 144 1891 0 1889 2 1 1 1 0 8 0 processpl 1232 1957 0 1889 6 0 6 6 0 8 0 procpl 664 4546 0 4470 8 0 8 8 0 8 0 sosppl 176 15 0 15 4 3 1 1 0 8 1 sockpl 752 3435 0 3393 34 23 11 18 0 8 5 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 127 0 0 16 0 16 16 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 55 0 0 7 0 7 7 0 8 0 mtagpl 96 19 0 0 1 0 1 1 0 8 0 mbufpl 256 1880 0 0 116 0 116 116 0 8 0 bufpl 280 14455 0 8318 439 0 439 439 0 8 0 anonpl 32 14347 0 0 116 0 116 116 0 246 0 amapchunkpl 152 56474 0 55923 46 14 32 40 0 158 8 amappl16 200 6358 0 6268 56 38 18 31 0 8 3 amappl15 192 13 0 13 1 1 0 1 0 8 0 amappl14 184 4 0 3 2 1 1 1 0 8 0 amappl13 176 462 0 460 1 0 1 1 0 8 0 amappl12 168 2307 0 2264 3 0 3 3 0 8 0 amappl11 160 8 0 8 1 1 0 1 0 8 0 amappl10 152 65 0 51 1 0 1 1 0 8 0 amappl9 144 280 0 280 1 1 0 1 0 8 0 amappl8 136 31 0 28 1 0 1 1 0 8 0 amappl7 128 96 0 94 1 0 1 1 0 8 0 amappl6 120 302 0 287 1 0 1 1 0 8 0 amappl5 112 77 0 66 1 0 1 1 0 8 0 amappl4 104 447 0 415 1 0 1 1 0 8 0 amappl3 96 11410 0 11305 5 1 4 4 0 8 0 amappl2 88 575 0 511 2 0 2 2 0 8 0 amappl1 80 15645 0 15039 16 1 15 15 0 8 0 amappl 88 15731 0 15559 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 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 255 0 255 3 2 1 1 0 8 1 dma64 64 7 0 7 2 2 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 24 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1919 0 1888 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1919 0 1888 1 0 1 1 0 8 0 vmmpekpl 168 16352 0 16300 3 0 3 3 0 8 0 vmmpepl 168 125715 0 123742 126 20 106 113 0 357 8 vmsppl 488 1918 0 1888 5 0 5 5 0 8 0 rwobjpl 80 34135 0 32925 35 2 33 35 0 8 0 pdppl 4096 3852 0 3780 118 40 78 86 0 8 6 pvpl 32 22124 0 0 181 2 179 179 0 265 0 pmappl 256 1921 0 1889 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 431 0 59 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837d5ff0) 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(ffffffff838c1148) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838c1148) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a331fd0,ffff80000006b400) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc dofstatat(ffff8000fffee018,ffffff9c,7640d0956b70,7640d0956f70,2) at dofstatat+0xe1 sys/kern/vfs_syscalls.c:2086 syscall(ffff80002a332360) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a332360) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7640d0957020, count: 5 ddb{0}> trace x86_ipi_db(ffffffff837d5ff0) 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(ffffffff838c1148) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838c1148) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a331fd0,ffff80000006b400) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc dofstatat(ffff8000fffee018,ffffff9c,7640d0956b70,7640d0956f70,2) at dofstatat+0xe1 sys/kern/vfs_syscalls.c:2086 syscall(ffff80002a332360) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a332360) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7640d0957020, count: -10 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(ffffffff833b0138) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833ee2e4,ffffffff83405879,1cb,ffffffff833a2f15) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003c4d69f0) at pipex_unlink_session_locked+0x409 pipex_destroy_all_sessions(ffff800001488800) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001488800) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,81,2000,ffff80003c4b7a28) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80003c419930) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805e6dc460,81,fffffd80097fd410,ffff80003c4b7a28) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b5ca360,ffff80003c4b7a28) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b5ca360,ffff80003c4b7a28) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806b5ca360,ffff80003c4b7a28) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b5ca360,ffff80003c4b7a28) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c4b7a28) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c4b7a28,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c4b7a28,ffff80003c419ca0,ffff80003c419bf0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 end trace frame: 0xffff80003c419c90, count: 0 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833b0138) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833ee2e4,ffffffff83405879,1cb,ffffffff833a2f15) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003c4d69f0) at pipex_unlink_session_locked+0x409 pipex_destroy_all_sessions(ffff800001488800) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001488800) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,81,2000,ffff80003c4b7a28) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80003c419930) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805e6dc460,81,fffffd80097fd410,ffff80003c4b7a28) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b5ca360,ffff80003c4b7a28) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b5ca360,ffff80003c4b7a28) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806b5ca360,ffff80003c4b7a28) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b5ca360,ffff80003c4b7a28) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c4b7a28) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c4b7a28,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c4b7a28,ffff80003c419ca0,ffff80003c419bf0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c419ca0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c419ca0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d6f10c1c5e0, count: -16