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 206697 88585 0 0 0x4000000 1 syz-executor * 375 7397 0 0 0x4000000 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83445704) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff83488cbc,ffffffff834a2195,1cb,ffffffff834415b7) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003c424000) at pipex_unlink_session_locked+0x429 pipex_destroy_all_sessions(ffff800001567800) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001567800) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,1,2000,ffff800036bb3778) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff800036bb9720) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805f5be988,1,fffffd80097fd548,ffff800036bb3778) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c54ccc8,ffff800036bb3778) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c54ccc8,ffff800036bb3778) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c54ccc8,ffff800036bb3778) at fdrop+0x121 sys/kern/kern_descrip.c:1281 closef(fffffd806c54ccc8,ffff800036bb3778) at closef+0x192 sys/kern/kern_descrip.c:1265 syscall(ffff800036bb9980) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800036bb9980) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5079452ab80, 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(ffffffff83445704) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff83488cbc,ffffffff834a2195,1cb,ffffffff834415b7) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003c424000) at pipex_unlink_session_locked+0x429 pipex_destroy_all_sessions(ffff800001567800) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001567800) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,1,2000,ffff800036bb3778) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff800036bb9720) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805f5be988,1,fffffd80097fd548,ffff800036bb3778) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c54ccc8,ffff800036bb3778) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c54ccc8,ffff800036bb3778) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c54ccc8,ffff800036bb3778) at fdrop+0x121 sys/kern/kern_descrip.c:1281 closef(fffffd806c54ccc8,ffff800036bb3778) at closef+0x192 sys/kern/kern_descrip.c:1265 syscall(ffff800036bb9980) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800036bb9980) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5079452ab80, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800036bb94f0 rbx 0xffffffff838ffe07 cpu_info_full_primary+0x2e07 rdx 0xffff8000015f5c40 rcx 0xffff800036bb3778 rax 0xffffffff838feff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xb92514c8dc95de02 r11 0x3c4359569ec81dc9 r12 0xffffffff838ffc08 cpu_info_full_primary+0x2c08 r13 0 r14 0 r15 0x1 rip 0xffffffff82421825 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800036bb94e0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=375 pid=7397 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=82, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800036bb3a10,0xffff800036bbb268 process=0xffff80003c484e98 user=0xffff800036bb4000, vmspace=0xfffffd806c7ddb88 estcpu=32, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 96682 318203 24360 0 2 0 syz-executor 96682 58620 24360 0 3 0x4000000 physio syz-executor 87516 142497 63048 0 2 0 syz-executor 87516 395018 63048 0 3 0x4000080 fsleep syz-executor 88585 315610 81728 0 2 0 syz-executor 88585 461882 81728 0 3 0x4000000 biowait syz-executor 88585 356807 81728 0 3 0x4000000 inode syz-executor 88585 403811 81728 0 3 0x4000000 inode syz-executor 88585 206697 81728 0 7 0x4000000 syz-executor 33602 46 77038 0 2 0 syz-executor 33602 403737 77038 0 3 0x4000080 fsleep syz-executor 33602 130522 77038 0 3 0x4000080 fsleep syz-executor 33602 427473 77038 0 3 0x4000080 fsleep syz-executor 7397 461808 46932 0 3 0x80 nanoslp syz-executor * 7397 375 46932 0 7 0x4000000 syz-executor 38159 457244 0 0 3 0x14200 acct acct 77038 367015 61981 0 3 0x82 nanoslp syz-executor 34367 64753 0 0 3 0x14280 nfsidl nfsio 97927 46782 0 0 3 0x14280 nfsidl nfsio 73607 228026 0 0 3 0x14280 nfsidl nfsio 56127 278677 0 0 3 0x14280 nfsidl nfsio 22369 246350 0 0 3 0x14280 nfsidl nfsio 75413 194901 0 0 3 0x14280 nfsidl nfsio 60101 272040 0 0 3 0x14280 nfsidl nfsio 27861 407422 0 0 3 0x14280 nfsidl nfsio 55796 198167 0 0 3 0x14280 nfsidl nfsio 85473 383234 0 0 3 0x14280 nfsidl nfsio 13385 258884 0 0 3 0x14280 nfsidl nfsio 5195 42146 0 0 3 0x14280 nfsidl nfsio 57731 15621 0 0 3 0x14280 nfsidl nfsio 55849 144841 0 0 3 0x14280 nfsidl nfsio 21610 368841 0 0 3 0x14280 nfsidl nfsio 97365 221634 0 0 3 0x14280 nfsidl nfsio 64521 340570 0 0 3 0x14280 nfsidl nfsio 30139 70185 0 0 3 0x14280 nfsidl nfsio 21792 457992 0 0 3 0x14280 nfsidl nfsio 69553 273962 0 0 3 0x14280 nfsidl nfsio 46932 18855 61981 0 3 0x82 nanoslp syz-executor 78568 217226 61981 0 3 0x2 biowait syz-executor 81728 82998 61981 0 3 0x82 nanoslp syz-executor 94931 127336 61981 0 3 0x82 wait syz-executor 24360 490027 61981 0 3 0x82 nanoslp syz-executor 63048 209414 61981 0 3 0x82 nanoslp syz-executor 22902 360228 61981 0 3 0x2 biowait syz-executor 61981 325020 55414 0 3 0x82 kqread syz-executor 55414 494931 12862 0 3 0x10008a sigsusp ksh 12862 311762 16533 0 3 0x98 kqread sshd-session 16533 464945 49874 0 3 0x92 kqread sshd-session 18520 381002 1 0 3 0x100083 ttyopn getty 49874 13538 1 0 3 0x88 kqread sshd 34426 218662 45549 74 3 0x1100092 bpf pflogd 45549 1763 1 0 3 0x80 sbwait pflogd 35890 114423 87796 73 3 0x1100090 kqread syslogd 87796 74599 1 0 3 0x100082 sbwait syslogd 34124 241417 1 0 3 0x100001 biowait resolvd 37880 359193 72280 77 3 0x100013 inode dhcpleased 30052 285592 72280 77 3 0x100092 kqread dhcpleased 72280 251474 1 0 3 0x80 kqread dhcpleased 61788 108815 0 0 3 0x14200 bored smr 62774 215724 0 0 3 0x14200 pgzero zerothread 95111 464568 0 0 3 0x14200 aiodoned aiodoned 2680 178655 0 0 3 0x14200 syncer update 52897 247819 0 0 3 0x14200 cleaner cleaner 1894 327218 0 0 3 0x14200 reaper reaper 48078 393129 0 0 3 0x14200 pgdaemon pagedaemon 25521 149529 0 0 3 0x14200 bored viomb 35537 479047 0 0 3 0x40014200 acpi0 acpi0 8636 439694 0 0 3 0x40014200 idle1 74593 390116 0 0 3 0x14200 bored softnet1 69824 299823 0 0 3 0x14200 bored softnet0 71177 116044 0 0 3 0x14200 bored systqmp 7199 235416 0 0 3 0x14200 bored systq 34065 201035 0 0 3 0x14200 tmoslp softclockmp 8186 107266 0 0 3 0x40014200 tmoslp softclock 71385 438789 0 0 3 0x40014200 idle0 1 37455 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 (0xffffffff838f97a0) #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 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #10 Xsyscall+0x128 Process 96682 (syz-executor) thread 0xffff800036bb2a80 (58620) shared rwlock vmmaplk r = 0 (0xfffffd806c7dd8b8) #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 uvm_vslock_device+0x149 sys/uvm/uvm_glue.c:173 #3 physio+0x257 sys/kern/kern_physio.c:139 #4 spec_read+0x14b sys/kern/spec_vnops.c:215 #5 VOP_READ+0x101 sys/kern/vfs_vops.c:227 #6 vn_read+0x17b sys/kern/vfs_vnops.c:369 #7 dofilereadv+0x25a sys/kern/sys_generic.c:252 #8 sys_preadv+0xe3 sys/kern/vfs_syscalls.c:3366 #9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #10 Xsyscall+0x128 Process 88585 (syz-executor) thread 0xffff800036bbaa90 (461882) exclusive rrwlock inode r = 0 (0xfffffd806ea27dd0) #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 Process 88585 (syz-executor) thread 0xffff800036bbcd20 (403811) exclusive rrwlock inode r = 0 (0xfffffd807ea34370) #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 vn_open+0x15a sys/kern/vfs_vnops.c:140 #8 sys_ktrace+0x9a sys/kern/kern_ktrace.c:551 #9 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #10 Xsyscall+0x128 Process 7397 (syz-executor) thread 0xffff800036bb3778 (375) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83aa4640) #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+0x15f sys/kern/kern_task.c:304 #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:1281 #12 closef+0x192 sys/kern/kern_descrip.c:1265 #13 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #14 Xsyscall+0x128 exclusive mutex /syzkaller/managers/multicore/kernel/sys/net/pipex.c:78 r = 0 (0xffffffff838f97a0) #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 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #10 Xsyscall+0x128 Process 78568 (syz-executor) thread 0xffff8000fffef240 (217226) exclusive rrwlock inode r = 0 (0xfffffd806c759c50) #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+0x98a sys/kern/vfs_lookup.c:567 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1887 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d54fd70) #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:1887 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 Process 22902 (syz-executor) thread 0xffff8000ffffd4c8 (360228) exclusive rrwlock inode r = 0 (0xfffffd8072f93548) #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 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3143 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d6e20b0) #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3128 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 Process 34124 (resolvd) thread 0xffff80002a243238 (241417) exclusive rrwlock inode r = 0 (0xfffffd806ea276e0) #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 ktrwriteraw+0x175 sys/kern/kern_ktrace.c:688 #7 ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] #7 ktrsysret+0x192 sys/kern/kern_ktrace.c:209 #8 syscall+0xa51 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] #8 syscall+0xa51 sys/arch/amd64/amd64/trap.c:804 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11084 12088K 12378K 166960K 12661 0 pcb 17 13K 13K 166960K 93 0 rtable 157 8K 8K 166960K 451 0 pf 29 17K 81K 166960K 98 0 ifaddr 28 4K 7K 166960K 74 0 ifgroup 36 1K 2K 166960K 106 0 sysctl 2 1K 9K 166960K 13 0 counters 64 36K 38K 166960K 136 0 ioctlops 0 0K 4K 166960K 1621 0 iov 1 12K 16K 166960K 27 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1329 84K 84K 166960K 1920 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 21 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 97K 166960K 633 0 sigio 0 0K 0K 166960K 6 0 proc 74 131K 147K 166960K 608 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 52 0 in_multi 58 4K 7K 166960K 128 0 ether_multi 1 0K 0K 166960K 1 0 mrt 1 0K 0K 166960K 13 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 472 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 236 175K 199K 166960K 7800 0 UVM aobj 17 2K 2K 166960K 21 0 pinsyscall 41 82K 106K 166960K 1806 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 38 0 NDP 8 0K 1K 166960K 49 0 temp 79 9084K 9180K 166960K 16491 0 kqueue 14 22K 30K 166960K 139 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 120 104 0 101 2 1 1 2 0 8 0 rtentry 176 133 0 73 5 0 5 5 0 8 0 unpcb 144 252 0 235 2 0 2 2 0 8 1 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 736 181 0 176 7 2 5 7 0 8 4 arp 136 21 0 11 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 2 0 0 1 0 1 1 0 8 0 inpcb 328 564 0 556 7 0 7 7 0 8 6 nd6 152 28 0 15 1 0 1 1 0 8 0 pkpcb 40 2 0 2 2 1 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1192 28 0 27 1 0 1 1 0 8 0 pppxif 1576 3 0 3 2 1 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 5 0 1 1 0 1 1 0 482 0 pffrnode 88 4 0 1 1 0 1 1 0 8 0 pffrent 40 6 0 2 1 0 1 1 0 8 0 pfosfp 40 1428 0 1428 5 0 5 5 0 8 5 pfosfpen 112 1428 0 1428 21 0 21 21 0 8 21 pfrktable 1344 2 0 0 1 0 1 1 0 8 0 pftag 88 5 0 0 1 0 1 1 0 8 0 pfqueue 320 1 0 1 1 1 0 1 0 8 0 pfstitem 24 40 0 1 1 0 1 1 0 8 0 pfstkey 128 42 0 3 2 0 2 2 0 8 0 pfstate 448 41 0 2 5 0 5 5 0 8 0 pfrule 1360 28 0 20 2 1 1 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 554 0 278 29 5 24 29 0 8 2 art_table 40 557 0 278 5 0 5 5 0 8 0 art_node 32 133 0 79 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 4 1 1 0 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 19 0 9 1 0 1 1 0 8 0 shmpl 112 18 0 4 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2629 0 1161 93 0 93 93 0 8 0 ffsino 296 2629 0 1161 114 0 114 114 0 8 0 nchpl 144 3549 0 1841 64 0 64 64 0 8 0 rtmask 32 7 0 6 1 0 1 1 0 8 0 vnodes 216 2988 0 0 166 0 166 166 0 8 0 namei 1024 11413 0 11411 2 1 1 2 0 8 0 percpumem 16 83 0 36 1 0 1 1 0 8 0 kstatmem 264 64 0 46 3 1 2 3 0 8 0 scsiplug 72 3 0 3 1 1 0 1 0 8 0 scxspl 216 16683 0 16677 10 7 3 8 1 8 2 plimitpl 152 135 0 115 1 0 1 1 0 8 0 sigapl 424 967 0 900 9 1 8 8 0 8 0 knotepl 120 512 0 0 16 0 16 16 0 8 0 kqueuepl 224 196 0 185 2 0 2 2 0 8 1 pipepl 344 156 0 129 3 0 3 3 0 8 0 fdescpl 528 929 0 899 3 0 3 3 0 8 0 filepl 160 4983 0 4765 14 1 13 14 0 8 1 lockfpl 104 284 0 282 1 0 1 1 0 8 0 lockfspl 48 129 0 127 1 0 1 1 0 8 0 sessionpl 144 31 0 22 1 0 1 1 0 8 0 pgrppl 48 43 0 26 1 0 1 1 0 8 0 ucredpl 104 762 0 749 1 0 1 1 0 8 0 zombiepl 144 901 0 900 1 0 1 1 0 8 0 processpl 1232 967 0 900 6 0 6 6 0 8 0 procpl 664 1827 0 1750 8 0 8 8 0 8 1 sockpl 752 935 0 907 10 0 10 10 0 8 7 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 110 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 21 0 0 3 0 3 3 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 2550 0 0 160 0 160 160 0 8 0 bufpl 280 6176 0 106 434 0 434 434 0 8 0 anonpl 32 8235 0 0 67 0 67 67 0 246 0 amapchunkpl 152 25453 0 24959 37 0 37 37 0 158 10 amappl16 200 3046 0 2951 16 6 10 15 0 8 3 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 441 0 440 1 0 1 1 0 8 0 amappl13 176 159 0 147 1 0 1 1 0 8 0 amappl12 168 1196 0 1166 2 0 2 2 0 8 0 amappl11 160 10 0 10 2 1 1 1 0 8 1 amappl10 152 64 0 50 1 0 1 1 0 8 0 amappl9 144 259 0 259 1 1 0 1 0 8 0 amappl8 136 125 0 121 1 0 1 1 0 8 0 amappl7 128 150 0 136 1 0 1 1 0 8 0 amappl6 120 176 0 174 1 0 1 1 0 8 0 amappl5 112 98 0 87 1 0 1 1 0 8 0 amappl4 104 298 0 278 1 0 1 1 0 8 0 amappl3 96 4793 0 4686 4 0 4 4 0 8 1 amappl2 88 551 0 489 2 0 2 2 0 8 0 amappl1 80 11764 0 11162 16 1 15 16 0 8 1 amappl 88 6976 0 6813 5 0 5 5 0 92 0 uvmvnodes 80 122 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 128 253 0 253 1 1 0 1 0 8 0 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 20 0 4 1 0 1 1 0 8 0 uaddrrnd 24 929 0 899 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 929 0 899 1 0 1 1 0 8 0 vmmpekpl 168 9357 0 9317 3 0 3 3 0 8 0 vmmpepl 168 66101 0 64156 100 2 98 100 0 357 7 vmsppl 488 928 0 899 5 0 5 5 0 8 0 rwobjpl 80 20608 0 19465 27 0 27 27 0 8 0 pdppl 4096 1865 0 1798 105 32 73 87 0 8 6 pvpl 32 17435 0 0 142 1 141 141 0 265 0 pmappl 256 928 0 899 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 437 0 45 12 0 12 12 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(ffffffff83445704) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff83488cbc,ffffffff834a2195,1cb,ffffffff834415b7) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80003c424000) at pipex_unlink_session_locked+0x429 pipex_destroy_all_sessions(ffff800001567800) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001567800) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:151 pppacclose(637e,1,2000,ffff800036bb3778) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff800036bb9720) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805f5be988,1,fffffd80097fd548,ffff800036bb3778) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c54ccc8,ffff800036bb3778) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c54ccc8,ffff800036bb3778) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c54ccc8,ffff800036bb3778) at fdrop+0x121 sys/kern/kern_descrip.c:1281 closef(fffffd806c54ccc8,ffff800036bb3778) at closef+0x192 sys/kern/kern_descrip.c:1265 syscall(ffff800036bb9980) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800036bb9980) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5079452ab80, count: -13 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(ffffffff83aa3e40) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83aa3e40) at __mp_lock+0x192 sys/kern/kern_lock.c:173 vn_ioctl(fffffd806c76a8f8,80044b02,ffff80003c3f9410,ffff800036bbd250) at vn_ioctl+0x4d sys/kern/vfs_vnops.c:514 sys_ioctl(ffff800036bbd250,ffff80003c3f95f0,ffff80003c3f9540) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c3f95f0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3f95f0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x136946b4360, 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(ffffffff83aa3e40) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83aa3e40) at __mp_lock+0x192 sys/kern/kern_lock.c:173 vn_ioctl(fffffd806c76a8f8,80044b02,ffff80003c3f9410,ffff800036bbd250) at vn_ioctl+0x4d sys/kern/vfs_vnops.c:514 sys_ioctl(ffff800036bbd250,ffff80003c3f95f0,ffff80003c3f9540) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c3f95f0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3f95f0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x136946b4360, count: -8