panic: kernel diagnostic assertion "TAILQ_EMPTY(&ifp->if_addrhooks)" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if.c", line 1072 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *419545 68890 0 0 0x4000000 1K syz-executor.2 338684 99058 0 0x100000 0 0 resolvd db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82457611) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff824c7114,ffffffff824ff86a,430,ffffffff824a863d) at __assert+0x25 sys/kern/subr_prf.c:161 if_detach(ffff800000cff000) at if_detach+0x59a sys/net/if.c:1092 pppacclose(26338,2,2000,ffff800021260fd0) at pppacclose+0x98 sys/net/if_pppx.c:1311 spec_close(ffff800023ce9180) at spec_close+0x334 sys/kern/spec_vnops.c:572 VOP_CLOSE(fffffd806e53b488,2,fffffd807f7d73c0,ffff800021260fd0) at VOP_CLOSE+0xe3 sys/kern/vfs_vops.c:156 vn_close(fffffd806e53b488,2,fffffd807f7d73c0,ffff800021260fd0) at vn_close+0x73 sys/kern/vfs_vnops.c:298 sys_acct(ffff800021260fd0,ffff800023ce9378,ffff800023ce93d0) at sys_acct+0x1a7 sys/kern/kern_acct.c:126 syscall(ffff800023ce9440) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023ce9440) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa4678e9be0, count: 4 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 "TAILQ_EMPTY(&ifp->if_addrhooks)" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if.c", line 1072 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82457611) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff824c7114,ffffffff824ff86a,430,ffffffff824a863d) at __assert+0x25 sys/kern/subr_prf.c:161 if_detach(ffff800000cff000) at if_detach+0x59a sys/net/if.c:1092 pppacclose(26338,2,2000,ffff800021260fd0) at pppacclose+0x98 sys/net/if_pppx.c:1311 spec_close(ffff800023ce9180) at spec_close+0x334 sys/kern/spec_vnops.c:572 VOP_CLOSE(fffffd806e53b488,2,fffffd807f7d73c0,ffff800021260fd0) at VOP_CLOSE+0xe3 sys/kern/vfs_vops.c:156 vn_close(fffffd806e53b488,2,fffffd807f7d73c0,ffff800021260fd0) at vn_close+0x73 sys/kern/vfs_vnops.c:298 sys_acct(ffff800021260fd0,ffff800023ce9378,ffff800023ce93d0) at sys_acct+0x1a7 sys/kern/kern_acct.c:126 syscall(ffff800023ce9440) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023ce9440) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa4678e9be0, count: -11 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800023ce8f80 rbx 0xffff800020d39bff rdx 0 rcx 0 rax 0xffff800021260fd0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xc9ed5fd7e4f9223a r11 0xc6543b021a9c5061 r12 0xffff800020d39a00 r13 0 r14 0 r15 0x1 rip 0xffffffff8167b298 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800023ce8f70 ss 0 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.2) pid=419545 stat=onproc flags process=0 proc=4000000 pri=82, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800021260d30,0xffff800021261a60 process=0xffff8000ffff8430 user=0xffff800023ce4000, vmspace=0xfffffd806088a460 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 44136 260416 39056 0 2 0 syz-executor.0 57502 272581 8193 0 2 0 syz-executor.3 68890 120660 85248 0 3 0x80 nanoslp syz-executor.2 *68890 419545 85248 0 7 0x4000000 syz-executor.2 68890 192830 85248 0 3 0x4000080 fsleep syz-executor.2 43710 246826 0 0 3 0x14200 acct acct 39056 50869 68313 0 3 0x82 nanoslp syz-executor.0 8193 357149 68313 0 3 0x82 nanoslp syz-executor.3 85248 271584 68313 0 3 0x82 nanoslp syz-executor.2 35813 79935 0 0 3 0x14280 nfsidl nfsio 29446 176847 0 0 3 0x14280 nfsidl nfsio 86749 373657 0 0 3 0x14280 nfsidl nfsio 42587 159987 0 0 3 0x14280 nfsidl nfsio 76296 282528 0 0 3 0x14280 nfsidl nfsio 73060 183964 0 0 3 0x14280 nfsidl nfsio 62660 322112 0 0 3 0x14280 nfsidl nfsio 20920 119989 0 0 3 0x14280 nfsidl nfsio 93599 339483 0 0 3 0x14280 nfsidl nfsio 53264 206936 0 0 3 0x14280 nfsidl nfsio 33717 489254 0 0 3 0x14280 nfsidl nfsio 73663 175409 0 0 3 0x14280 nfsidl nfsio 6823 359866 0 0 3 0x14280 nfsidl nfsio 28854 413429 0 0 3 0x14280 nfsidl nfsio 33352 248977 0 0 3 0x14280 nfsidl nfsio 20897 305249 0 0 3 0x14280 nfsidl nfsio 40874 270681 0 0 3 0x14280 nfsidl nfsio 93993 187918 0 0 3 0x14280 nfsidl nfsio 20626 304521 0 0 3 0x14280 nfsidl nfsio 57304 329507 0 0 3 0x14280 nfsidl nfsio 44790 441413 0 0 3 0x14200 bored sosplice 68313 136476 93935 0 3 0x82 thrsleep syz-fuzzer 68313 286989 93935 0 3 0x4000082 nanoslp syz-fuzzer 68313 242620 93935 0 3 0x4000082 kqread syz-fuzzer 68313 294584 93935 0 3 0x4000082 thrsleep syz-fuzzer 68313 173585 93935 0 3 0x4000082 thrsleep syz-fuzzer 68313 488337 93935 0 3 0x4000082 thrsleep syz-fuzzer 68313 73147 93935 0 3 0x4000002 biowait syz-fuzzer 68313 25265 93935 0 3 0x4000082 thrsleep syz-fuzzer 93935 245434 38576 0 3 0x10008a sigsusp ksh 38576 395513 88191 0 3 0x9a poll sshd 70111 463761 1 0 3 0x100083 ttyin getty 88191 367756 1 0 3 0x88 poll sshd 65168 214363 47487 74 3 0x100092 bpf pflogd 47487 463201 1 0 3 0x80 netio pflogd 49332 51927 97854 73 3 0x100090 kqread syslogd 97854 130910 1 0 3 0x100082 netio syslogd 99058 338684 1 0 7 0x100000 resolvd 99839 343196 68507 77 2 0x100092 dhcpleased 20842 192053 68507 77 3 0x100092 kqread dhcpleased 68507 198913 1 0 3 0x80 kqread dhcpleased 58337 34316 0 0 3 0x14200 bored smr 34825 326556 0 0 2 0x14200 zerothread 89752 523802 0 0 3 0x14200 aiodoned aiodoned 21308 92449 0 0 3 0x14200 syncer update 28585 328531 0 0 3 0x14200 cleaner cleaner 83800 444415 0 0 3 0x14200 reaper reaper 27233 130435 0 0 3 0x14200 pgdaemon pagedaemon 6317 85955 0 0 3 0x14200 bored viomb 71005 347343 0 0 3 0x40014200 acpi0 acpi0 21162 319394 0 0 3 0x40014200 idle1 50907 301808 0 0 3 0x14200 bored softnet 11804 354513 0 0 3 0x14200 bored systqmp 45926 147186 0 0 3 0x14200 bored systq 55329 222518 0 0 3 0x40014200 bored softclock 663 194534 0 0 3 0x40014200 idle0 1 443527 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 57502 (syz-executor.3) thread 0xffff800021261a50 (272581) exclusive rwlock vmmaplk r = 0 (0xfffffd806088aa38) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5458 #3 uvmfault_lookup+0xb9 sys/uvm/uvm_fault.c:1740 #4 uvm_fault_check+0x603 uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline] #4 uvm_fault_check+0x603 sys/uvm/uvm_fault.c:714 #5 uvm_fault+0x102 sys/uvm/uvm_fault.c:602 #6 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #7 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403 #8 recall_trap+0x8 Process 68890 (syz-executor.2) thread 0xffff800021260fd0 (419545) exclusive rwlock netlock r = 0 (0xffffffff82812260) #0 witness_lock+0x44d #1 if_detach+0xd9 sys/net/if.c:1027 #2 pppacclose+0x98 sys/net/if_pppx.c:1311 #3 spec_close+0x334 sys/kern/spec_vnops.c:572 #4 VOP_CLOSE+0xe3 sys/kern/vfs_vops.c:156 #5 vn_close+0x73 sys/kern/vfs_vnops.c:298 #6 sys_acct+0x1a7 sys/kern/kern_acct.c:126 #7 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #7 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #8 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8292d590) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3d3 sys/kern/sched_bsd.c:416 #3 yield+0x5a sys/kern/sched_bsd.c:291 #4 malloc+0xa6 sys/kern/kern_malloc.c:184 #5 if_alloc_sadl+0xbe sys/net/if.c:474 #6 pppacopen+0x21d sys/net/if_pppx.c:1049 #7 spec_open+0x3d7 sys/kern/spec_vnops.c:157 #8 VOP_OPEN+0x75 sys/kern/vfs_vops.c:138 #9 vn_open+0x467 sys/kern/vfs_vnops.c:183 #10 sys_acct+0x88 sys/kern/kern_acct.c:122 #11 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #11 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #12 Xsyscall+0x128 Process 68313 (syz-fuzzer) thread 0xffff8000211937a8 (73147) exclusive rrwlock inode r = 0 (0xfffffd806a5e45e8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vget+0x1d3 sys/kern/vfs_subr.c:677 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1318 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:561 #11 namei+0x36a sys/kern/vfs_lookup.c:245 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1849 #13 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806a5e4918) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1849 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10200 6497K 7005K 78643K 22133 0 pcb 13 22K 26K 78643K 2031 0 rtable 138 20K 22K 78643K 2970 0 ifaddr 69 16K 18K 78643K 1204 0 sysctl 2 0K 0K 78643K 2 0 counters 50 34K 35K 78643K 202 0 ioctlops 0 0K 4K 78643K 2364 0 iov 0 0K 24K 78643K 728 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1429 90K 91K 78643K 5225 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 56 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 635 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 8 25K 45K 78643K 8005 0 sigio 0 0K 0K 78643K 82 0 proc 70 87K 111K 78643K 1285 0 subproc 39 2K 3K 78643K 367 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 492 0 in_multi 31 2K 3K 78643K 473 0 ether_multi 1 0K 0K 78643K 73 0 mrt 1 0K 0K 78643K 46 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 229 1023K 1023K 78643K 229 0 exec 0 0K 2K 78643K 1814 0 pfkey data 0 0K 1K 78643K 3 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 373 624K 633K 78643K 102107 0 UVM aobj 131 4K 4K 78643K 145 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 291 0 NDP 10 0K 1K 78643K 146 0 temp 111 4231K 4344K 78643K 103044 0 kqueue 10 14K 20K 78643K 217 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 592 0 589 10 9 1 3 0 8 0 rtentry 112 445 0 406 2 0 2 2 0 8 0 unpcb 136 9839 0 9824 57 56 1 9 0 8 0 syncache 296 31 0 31 12 11 1 1 0 8 1 tcpqe 32 136 0 136 7 6 1 1 0 8 1 tcpcb 736 2987 0 2976 103 94 9 19 0 8 6 arp 120 60 0 52 1 0 1 1 0 8 0 inpcb 304 9162 0 9151 97 90 7 16 0 8 5 rttmr 72 2 0 2 1 1 0 1 0 8 0 ip6q 72 15 0 15 5 5 0 1 0 8 0 ip6af 40 45 0 45 5 5 0 1 0 8 0 nd6 48 94 0 88 1 0 1 1 0 8 0 pkpcb 40 14 0 14 2 2 0 1 0 8 0 kcovpl 48 28 0 25 1 0 1 1 0 8 0 ppxss 1248 32 0 30 5 4 1 1 0 8 0 pfstscr 40 9 0 9 3 2 1 1 0 8 1 pffrag 232 76 0 76 3 2 1 1 0 482 1 pffrnode 88 76 0 76 3 2 1 1 0 8 1 pffrent 40 320 0 320 3 2 1 1 0 8 1 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 788 0 772 8 6 2 2 0 8 0 pftag 88 13 0 10 2 1 1 1 0 8 0 pfqueue 264 2 0 2 1 1 0 1 0 8 0 pfstitem 24 34 0 32 1 0 1 1 0 8 0 pfstkey 112 50 0 48 1 0 1 1 0 8 0 pfstate 320 41 0 39 3 2 1 3 0 8 0 pfrule 1360 540 0 482 5 0 5 5 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1550 0 1392 23 7 16 18 0 8 0 art_table 32 1551 0 1392 3 0 3 3 0 8 0 art_node 16 384 0 353 1 0 1 1 0 8 0 sysvmsgpl 40 45 0 5 1 0 1 1 0 8 0 semupl 112 5 0 5 2 2 0 1 0 8 0 semapl 112 633 0 623 1 0 1 1 0 8 0 shmpl 112 142 0 14 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 11404 0 9969 90 0 90 90 0 8 0 ffsino 272 11404 0 9969 96 0 96 96 0 8 0 nchpl 144 21617 0 20014 61 0 61 61 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 75009 0 75009 6 5 1 1 0 8 1 percpumem 16 113 0 76 1 0 1 1 0 8 0 vcpupl 2048 83 0 0 11 0 11 11 0 8 0 vmpool 560 154 0 71 6 0 6 6 0 8 0 pfiaddrpl 120 230 0 207 2 1 1 1 0 8 0 scsiplug 72 5 0 5 2 2 0 1 0 8 0 scxspl 216 73754 0 73753 21 20 1 8 0 8 0 plimitpl 152 540 0 530 1 0 1 1 0 8 0 sigapl 424 8209 0 8152 7 0 7 7 0 8 0 futexpl 64 64166 0 64165 6 5 1 1 0 8 0 knotepl 112 113 0 0 3 0 3 3 0 8 0 kqueuepl 216 1090 0 1079 23 20 3 5 0 8 2 pipepl 336 963 0 948 27 25 2 7 0 8 0 fdescpl 496 8163 0 8142 4 1 3 4 0 8 0 filepl 152 56505 0 56369 96 87 9 16 0 8 3 lockfpl 104 2000 0 1998 3 2 1 2 0 8 0 lockfspl 48 523 0 521 1 0 1 1 0 8 0 sessionpl 144 44 0 32 1 0 1 1 0 8 0 pgrppl 48 513 0 501 1 0 1 1 0 8 0 ucredpl 96 6470 0 6456 1 0 1 1 0 8 0 zombiepl 144 8750 0 8750 2 1 1 1 0 8 1 processpl 1064 8209 0 8152 4 0 4 4 0 8 0 procpl 672 22829 0 22763 16 9 7 8 0 8 0 srpgc 96 30 0 30 7 6 1 1 0 8 1 sosppl 168 55 0 53 10 9 1 1 0 8 0 sockpl 480 19692 0 19663 388 375 13 34 0 8 9 mcl64k 65536 19 0 0 3 0 3 3 0 8 0 mcl16k 16384 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 25 0 0 2 0 2 2 0 8 0 mcl8k 8192 18 0 0 3 0 3 3 0 8 0 mcl4k 4096 33 0 0 4 1 3 3 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 311 0 0 31 3 28 31 0 8 2 mtagpl 96 588 0 0 8 0 8 8 0 8 0 mbufpl 256 1168 0 0 55 1 54 54 0 8 0 bufpl 288 17562 0 11217 454 0 454 454 0 8 0 anonpl 24 2323444 0 2304595 289 167 122 190 0 186 0 amapchunkpl 152 252022 0 251269 98 65 33 61 0 158 1 amappl16 200 21226 0 20592 108 74 34 46 0 8 0 amappl15 192 1323 0 1323 3 2 1 1 0 8 1 amappl14 184 1326 0 1322 1 0 1 1 0 8 0 amappl13 176 260 0 255 1 0 1 1 0 8 0 amappl12 168 1044 0 1040 1 0 1 1 0 8 0 amappl11 160 1072 0 1056 1 0 1 1 0 8 0 amappl10 152 444 0 434 1 0 1 1 0 8 0 amappl9 144 1887 0 1885 1 0 1 1 0 8 0 amappl8 136 3050 0 2985 5 2 3 3 0 8 0 amappl7 128 2364 0 2353 1 0 1 1 0 8 0 amappl6 120 1708 0 1687 1 0 1 1 0 8 0 amappl5 112 6796 0 6773 1 0 1 1 0 8 0 amappl4 104 3258 0 3231 1 0 1 1 0 8 0 amappl3 96 1684 0 1662 1 0 1 1 0 8 0 amappl2 88 1322 0 1274 3 1 2 2 0 8 0 amappl1 80 151287 0 150797 21 9 12 13 0 8 0 amappl 88 101179 0 100953 6 0 6 6 0 92 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 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 72 144 0 14 3 0 3 3 0 8 0 uaddrrnd 24 8317 0 8213 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 8317 0 8213 1 0 1 1 0 8 0 vmmpekpl 168 57510 0 57451 3 0 3 3 0 8 0 vmmpepl 168 748108 0 745848 312 185 127 140 0 357 19 vmsppl 368 8316 0 8213 10 0 10 10 0 8 0 rwobjpl 56 187182 0 179596 125 16 109 111 0 8 1 pdppl 4096 16642 0 16509 182 45 137 138 0 8 4 pvpl 32 3923860 0 3902415 450 265 185 306 0 265 0 pmappl 248 8316 0 8213 7 0 7 7 0 8 0 extentpl 40 57 0 38 1 0 1 1 0 8 0 phpool 112 1113 0 183 27 0 27 27 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff8279bff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff8292d388) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8292d388) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff8292d388) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8292d388) at __mp_lock+0x122 sys/kern/kern_lock.c:147 kqueue_scan(ffff8000211fa400,3,ffff8000211fa300,0,ffff8000ffff6550,ffff8000211fa54c) at kqueue_scan+0xd8 sys/kern/kern_event.c:1290 sys_kevent(ffff8000ffff6550,ffff8000211fa5b0,ffff8000211fa610) at sys_kevent+0x47b sys/kern/kern_event.c:982 syscall(ffff8000211fa680) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000211fa680) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbebd0, count: 4 ddb{0}> trace x86_ipi_db(ffffffff8279bff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff8292d388) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8292d388) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff8292d388) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8292d388) at __mp_lock+0x122 sys/kern/kern_lock.c:147 kqueue_scan(ffff8000211fa400,3,ffff8000211fa300,0,ffff8000ffff6550,ffff8000211fa54c) at kqueue_scan+0xd8 sys/kern/kern_event.c:1290 sys_kevent(ffff8000ffff6550,ffff8000211fa5b0,ffff8000211fa610) at sys_kevent+0x47b sys/kern/kern_event.c:982 syscall(ffff8000211fa680) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000211fa680) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbebd0, count: -11 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82457611) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff824c7114,ffffffff824ff86a,430,ffffffff824a863d) at __assert+0x25 sys/kern/subr_prf.c:161 if_detach(ffff800000cff000) at if_detach+0x59a sys/net/if.c:1092 pppacclose(26338,2,2000,ffff800021260fd0) at pppacclose+0x98 sys/net/if_pppx.c:1311 spec_close(ffff800023ce9180) at spec_close+0x334 sys/kern/spec_vnops.c:572 VOP_CLOSE(fffffd806e53b488,2,fffffd807f7d73c0,ffff800021260fd0) at VOP_CLOSE+0xe3 sys/kern/vfs_vops.c:156 vn_close(fffffd806e53b488,2,fffffd807f7d73c0,ffff800021260fd0) at vn_close+0x73 sys/kern/vfs_vnops.c:298 sys_acct(ffff800021260fd0,ffff800023ce9378,ffff800023ce93d0) at sys_acct+0x1a7 sys/kern/kern_acct.c:126 syscall(ffff800023ce9440) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023ce9440) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa4678e9be0, count: 4 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82457611) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff824c7114,ffffffff824ff86a,430,ffffffff824a863d) at __assert+0x25 sys/kern/subr_prf.c:161 if_detach(ffff800000cff000) at if_detach+0x59a sys/net/if.c:1092 pppacclose(26338,2,2000,ffff800021260fd0) at pppacclose+0x98 sys/net/if_pppx.c:1311 spec_close(ffff800023ce9180) at spec_close+0x334 sys/kern/spec_vnops.c:572 VOP_CLOSE(fffffd806e53b488,2,fffffd807f7d73c0,ffff800021260fd0) at VOP_CLOSE+0xe3 sys/kern/vfs_vops.c:156 vn_close(fffffd806e53b488,2,fffffd807f7d73c0,ffff800021260fd0) at vn_close+0x73 sys/kern/vfs_vnops.c:298 sys_acct(ffff800021260fd0,ffff800023ce9378,ffff800023ce93d0) at sys_acct+0x1a7 sys/kern/kern_acct.c:126 syscall(ffff800023ce9440) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023ce9440) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa4678e9be0, count: -11