Warning: Permanently added '10.128.0.225' (ECDSA) to the list of known hosts. 2020/05/26 06:24:01 parsed 1 programs 2020/05/26 06:24:06 executed programs: 0 panic: pool_do_get: mbufpl free list modified: page 0xfffffd806f170000; item addr 0xfffffd806f170a00; offset 0x0=0x0 != 0xa7ce57bbbb44473c Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 503823 56139 0 0x2 0x4000000 1 syz-execprog *467242 84659 0 0x14000 0x40000200 0K softclock db_enter() at db_enter+0x18 panic(ffffffff82272c1a) at panic+0x15c pool_do_get(ffffffff82667020,2,ffff800020e274b8) at pool_do_get+0x439 pool_get(ffffffff82667020,2) at pool_get+0xeb m_get(2,1) at m_get+0x4c ip6_output(fffffd806f16c100,ffffffff8263e850,0,1,ffff800020e276f8,0) at ip6_output+0x203 mld6_sendpkt(ffff8000009da480,83,0) at mld6_sendpkt+0x2da mld6_fasttimeo() at mld6_fasttimeo+0x162 pffasttimo(ffffffff82541cd0) at pffasttimo+0x85 timeout_run(ffffffff82541cd0) at timeout_run+0xc4 softclock_thread(ffff800020e19380) at softclock_thread+0x16a end trace frame: 0x0, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic pool_do_get: mbufpl free list modified: page 0xfffffd806f170000; item addr 0xfffffd806f170a00; offset 0x0=0x0 != 0xa7ce57bbbb44473c ddb{0}> trace db_enter() at db_enter+0x18 panic(ffffffff82272c1a) at panic+0x15c pool_do_get(ffffffff82667020,2,ffff800020e274b8) at pool_do_get+0x439 pool_get(ffffffff82667020,2) at pool_get+0xeb m_get(2,1) at m_get+0x4c ip6_output(fffffd806f16c100,ffffffff8263e850,0,1,ffff800020e276f8,0) at ip6_output+0x203 mld6_sendpkt(ffff8000009da480,83,0) at mld6_sendpkt+0x2da mld6_fasttimeo() at mld6_fasttimeo+0x162 pffasttimo(ffffffff82541cd0) at pffasttimo+0x85 timeout_run(ffffffff82541cd0) at timeout_run+0xc4 softclock_thread(ffff800020e19380) at softclock_thread+0x16a end trace frame: 0x0, count: -11 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800020e27300 rbx 0xffff800020e273b0 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff8210a11f kprintf+0x16f r9 0x1 r10 0x2 r11 0x776e47d431c57622 r12 0x3000000008 r13 0xffff800020e27310 r14 0x100 r15 0x1 rip 0xffffffff81d8fc68 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020e272f0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (softclock) pid=467242 stat=onproc flags process=14000 proc=40000200 pri=0, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020e195f0,0xffff800020e18eb0 process=0xffff800020e1a000 user=0xffff800020e22000, vmspace=0xffffffff82653800 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 42804 329676 56139 0 3 0x82 nanosleep syz-executor.0 56139 127730 2855 0 3 0x82 thrsleep syz-execprog 56139 503823 2855 0 7 0x4000002 syz-execprog 56139 14137 2855 0 3 0x4000082 kqread syz-execprog 56139 181191 2855 0 2 0x4000482 syz-execprog 56139 352293 2855 0 3 0x4000082 thrsleep syz-execprog 56139 35272 2855 0 3 0x4000082 thrsleep syz-execprog 56139 12648 2855 0 3 0x4000082 thrsleep syz-execprog 56139 105303 2855 0 3 0x4000082 nanosleep syz-execprog 2855 332804 81570 0 3 0x10008a pause ksh 81570 60429 67631 0 3 0x92 select sshd 5442 183139 1 0 3 0x100083 ttyin getty 67631 149309 1 0 3 0x80 select sshd 91823 406204 14536 74 3 0x100092 bpf pflogd 14536 217269 1 0 3 0x80 netio pflogd 767 432860 24912 73 3 0x100090 kqread syslogd 24912 422471 1 0 3 0x100082 netio syslogd 45119 21848 1 77 3 0x100090 poll dhclient 36005 149896 1 0 3 0x80 poll dhclient 34580 95165 0 0 3 0x14200 bored smr 58188 255594 0 0 3 0x14200 pgzero zerothread 4175 474475 0 0 3 0x14200 aiodoned aiodoned 30539 499401 0 0 3 0x14200 syncer update 56151 449733 0 0 3 0x14200 cleaner cleaner 91505 86209 0 0 3 0x14200 reaper reaper 47451 347770 0 0 3 0x14200 pgdaemon pagedaemon 29649 396054 0 0 3 0x14200 bored crynlk 48212 236748 0 0 3 0x14200 bored crypto 96309 102870 0 0 3 0x40014200 acpi0 acpi0 36583 452517 0 0 3 0x40014200 idle1 92565 147849 0 0 3 0x14200 bored softnet 92711 436011 0 0 3 0x14200 bored systqmp 37094 53287 0 0 3 0x14200 bored systq *84659 467242 0 0 7 0x40014200 softclock 57622 492338 0 0 3 0x40014200 idle0 1 329495 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex mbufpl r = 0 (0xffffffff82667030) #0 witness_lock+0x4c7 #1 mtx_enter_try+0x102 #2 mtx_enter+0x4b #3 pool_get+0xbf #4 m_get+0x4c #5 ip6_output+0x203 #6 mld6_sendpkt+0x2da #7 mld6_fasttimeo+0x162 #8 pffasttimo+0x85 #9 timeout_run+0xc4 #10 softclock_thread+0x16a #11 proc_trampoline+0x1c Process 84659 (softclock) thread 0xffff800020e19380 (467242) exclusive rwlock netlock r = 0 (0xffffffff824b44a8) #0 witness_lock+0x4c7 #1 mld6_fasttimeo+0x1d #2 pffasttimo+0x85 #3 timeout_run+0xc4 #4 softclock_thread+0x16a #5 proc_trampoline+0x1c shared rwlock timeout r = 0 (0xffffffff8248b1d0) #0 witness_lock+0x4c7 #1 timeout_run+0xb9 #2 softclock_thread+0x16a #3 proc_trampoline+0x1c exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8268a470) #0 witness_lock+0x4c7 #1 __mp_acquire_count+0x51 #2 mi_switch+0x392 #3 sleep_finish+0x113 #4 softclock_thread+0x103 #5 proc_trampoline+0x1c exclusive mutex mbufpl r = 0 (0xffffffff82667030) #0 witness_lock+0x4c7 #1 mtx_enter_try+0x102 #2 mtx_enter+0x4b #3 pool_get+0xbf #4 m_get+0x4c #5 ip6_output+0x203 #6 mld6_sendpkt+0x2da #7 mld6_fasttimeo+0x162 #8 pffasttimo+0x85 #9 timeout_run+0xc4 #10 softclock_thread+0x16a #11 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9467 6396K 6396K 78643K 10560 0 pcb 13 8K 8K 78643K 13 0 rtable 83 2K 2K 78643K 163 0 ifaddr 37 9K 9K 78643K 45 0 counters 41 33K 33K 78643K 41 0 ioctlops 0 0K 4K 78643K 1468 0 mount 1 1K 1K 78643K 1 0 vnodes 1183 74K 75K 78643K 1188 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 2 4K 12K 78643K 24 0 proc 59 63K 83K 78643K 398 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 22 1K 1K 78643K 22 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 19 95K 95K 78643K 19 0 exec 0 0K 1K 78643K 197 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 72 12K 12K 78643K 953 0 UVM aobj 2 2K 2K 78643K 2 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 7 0K 0K 78643K 7 0 temp 29 3029K 3093K 78643K 1879 0 kqueue 3 4K 4K 78643K 3 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 4 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 1 1 0 1 1 0 8 0 unpcb 120 29 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 2 1 1 1 0 8 1 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 544 8 0 4 1 0 1 1 0 8 0 inpcb 280 40 0 33 1 0 1 1 0 8 0 nd6 48 3 0 0 1 0 1 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 11 0 2 1 0 1 1 0 8 0 pfstkey 112 11 0 2 1 0 1 1 0 8 0 pfstate 328 11 0 2 1 0 1 1 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 144 0 0 9 0 9 9 0 8 0 art_table 32 145 0 0 2 0 2 2 0 8 0 art_node 16 33 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1430 0 28 88 0 88 88 0 8 0 ffsino 272 1430 0 28 94 0 94 94 0 8 0 nchpl 144 1654 0 51 60 0 60 60 0 8 0 uvmvnodes 72 1440 0 0 27 0 27 27 0 8 0 vnodes 208 1440 0 0 76 0 76 76 0 8 0 namei 1024 4234 0 4234 2 1 1 1 0 8 1 percpumem 16 31 0 0 1 0 1 1 0 8 0 scxspl 192 4040 0 4040 9 4 5 7 0 8 5 plimitpl 152 15 0 8 1 0 1 1 0 8 0 sigapl 424 247 0 218 4 0 4 4 0 8 0 knotepl 112 47 0 36 1 0 1 1 0 8 0 kqueuepl 144 2 0 0 1 0 1 1 0 8 0 pipelkpl 48 77 0 70 2 1 1 1 0 8 0 pipepl 120 154 0 141 2 1 1 1 0 8 0 fdescpl 496 232 0 218 3 0 3 3 0 8 0 filepl 152 1127 0 1069 3 0 3 3 0 8 0 lockfpl 104 5 0 4 1 0 1 1 0 8 0 lockfspl 48 3 0 2 1 0 1 1 0 8 0 sessionpl 112 19 0 9 1 0 1 1 0 8 0 pgrppl 48 19 0 9 1 0 1 1 0 8 0 ucredpl 96 62 0 53 1 0 1 1 0 8 0 zombiepl 144 218 0 217 2 1 1 1 0 8 0 processpl 984 247 0 217 5 0 5 5 0 8 1 procpl 624 254 0 217 3 0 3 3 0 8 0 sockpl 400 86 0 67 3 0 3 3 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 56 0 0 7 0 7 7 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 94 0 0 5 0 5 5 0 8 0 mbufpl: pool(0xffffffff82667020:mbufpl): free list modified: page 0xfffffd806f170000; item ordinal 0; addr 0xfffffd806f170a00 (p 0xfffffd806f32f000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd806f170000; item ordinal 0; addr 0xfffffd806f170a00 (p 0xfffffd806f32f000); offset 0x0=0x0 mbufpl: pool(0xffffffff82667020:mbufpl): page inconsistency: page 0xfffffd806f170000; item ordinal 1; addr 0x5a5d9b688edfe339 bufpl 280 2994 0 133 205 0 205 205 0 8 0 anonpl 16 22465 0 20834 14 2 12 12 0 124 4 amapchunkpl 152 832 0 766 5 0 5 5 0 158 2 amappl16 192 160 0 130 2 0 2 2 0 8 0 amappl15 184 2 0 2 2 1 1 1 0 8 1 amappl14 176 41 0 35 1 0 1 1 0 8 0 amappl13 168 22 0 20 2 1 1 1 0 8 0 amappl12 160 13 0 11 2 1 1 1 0 8 0 amappl11 152 54 0 39 1 0 1 1 0 8 0 amappl10 144 21 0 16 1 0 1 1 0 8 0 amappl9 136 170 0 169 1 0 1 1 0 8 0 amappl8 128 269 0 262 1 0 1 1 0 8 0 amappl7 120 118 0 105 1 0 1 1 0 8 0 amappl6 112 23 0 22 2 1 1 1 0 8 0 amappl5 104 253 0 239 1 0 1 1 0 8 0 amappl4 96 502 0 475 1 0 1 1 0 8 0 amappl3 88 112 0 106 1 0 1 1 0 8 0 amappl2 80 877 0 819 3 1 2 2 0 8 0 amappl1 72 15344 0 14918 23 5 18 18 0 8 8 amappl 80 482 0 454 1 0 1 1 0 84 0 dma4096 4096 1 0 1 1 1 0 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 64 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 232 0 218 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 232 0 218 1 0 1 1 0 8 0 vmmpekpl 168 6360 0 6337 2 0 2 2 0 8 0 vmmpepl 168 32885 0 31962 85 13 72 72 0 357 29 vmsppl 368 231 0 218 2 0 2 2 0 8 0 pdppl 4096 472 0 436 6 0 6 6 0 8 0 pvpl 32 114320 0 110332 109 5 104 104 0 265 70 pmappl 232 231 0 218 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 229 0 4 7 0 7 7 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 panic(ffffffff82272c1a) at panic+0x15c pool_do_get(ffffffff82667020,2,ffff800020e274b8) at pool_do_get+0x439 pool_get(ffffffff82667020,2) at pool_get+0xeb m_get(2,1) at m_get+0x4c ip6_output(fffffd806f16c100,ffffffff8263e850,0,1,ffff800020e276f8,0) at ip6_output+0x203 mld6_sendpkt(ffff8000009da480,83,0) at mld6_sendpkt+0x2da mld6_fasttimeo() at mld6_fasttimeo+0x162 pffasttimo(ffffffff82541cd0) at pffasttimo+0x85 timeout_run(ffffffff82541cd0) at timeout_run+0xc4 softclock_thread(ffff800020e19380) at softclock_thread+0x16a end trace frame: 0x0, count: -11 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020e00ff0) at x86_ipi_db+0x1a x86_ipi_handler() at x86_ipi_handler+0xc6 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff8268a268) at __mp_lock+0x127 sleep_setup(ffff800020f19d40,ffffffff8259552c,120,ffffffff821eed77) at sleep_setup+0xcf tsleep(ffffffff8259552c,120,ffffffff821eed77,2) at tsleep+0xe6 sys_nanosleep(ffff800020ed0760,ffff800020f19e70,ffff800020f19ec0) at sys_nanosleep+0x205 syscall(ffff800020f19f40) at syscall+0x4a4 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc000045f38, count: 6 ddb{1}> trace x86_ipi_db(ffff800020e00ff0) at x86_ipi_db+0x1a x86_ipi_handler() at x86_ipi_handler+0xc6 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff8268a268) at __mp_lock+0x127 sleep_setup(ffff800020f19d40,ffffffff8259552c,120,ffffffff821eed77) at sleep_setup+0xcf tsleep(ffffffff8259552c,120,ffffffff821eed77,2) at tsleep+0xe6 sys_nanosleep(ffff800020ed0760,ffff800020f19e70,ffff800020f19ec0) at sys_nanosleep+0x205 syscall(ffff800020f19f40) at syscall+0x4a4 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc000045f38, count: -9 ddb{1}>