Warning: Permanently added '10.128.0.137' (ECDSA) to the list of known hosts. 2020/05/08 01:25:04 parsed 1 programs 2020/05/08 01:25:06 executed programs: 0 login: panic: pool_do_get: mbufpl free list modified: page 0xfffffd805a6cc000; item addr 0xfffffd805a6cc100; offset 0x0=0x0 != 0xf8a814736e3aed00 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND db_enter() at db_enter+0x18 panic(ffffffff8224b96d) at panic+0x15c pool_do_get(ffffffff82572608,2,ffff80001d809fc8) at pool_do_get+0x42a pool_get(ffffffff82572608,2) at pool_get+0xb5 m_gethdr(2,1) at m_gethdr+0x4c rtm_msg1(2,ffff80001d80a120) at rtm_msg1+0x6e rtm_send(fffffd805e378150,2,0,0) at rtm_send+0x120 rt_ifa_del(ffff8000009cd300,800100,ffff8000009cd358,0) at rt_ifa_del+0x3bb in_purgeaddr(ffff8000009cd300) at in_purgeaddr+0xc6 in_ifdetach(ffff8000009f7800) at in_ifdetach+0x74 if_detach(ffff8000009f7800) at if_detach+0x140 tun_clone_destroy(ffff8000009f7800) at tun_clone_destroy+0x1d8 tun_dev_close(5d00,7) at tun_dev_close+0x160 spec_close(ffff80001d80a5c0) at spec_close+0x311 end trace frame: 0xffff80001d80a630, 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic pool_do_get: mbufpl free list modified: page 0xfffffd805a6cc000; item addr 0xfffffd805a6cc100; offset 0x0=0x0 != 0xf8a814736e3aed00 ddb> trace db_enter() at db_enter+0x18 panic(ffffffff8224b96d) at panic+0x15c pool_do_get(ffffffff82572608,2,ffff80001d809fc8) at pool_do_get+0x42a pool_get(ffffffff82572608,2) at pool_get+0xb5 m_gethdr(2,1) at m_gethdr+0x4c rtm_msg1(2,ffff80001d80a120) at rtm_msg1+0x6e rtm_send(fffffd805e378150,2,0,0) at rtm_send+0x120 rt_ifa_del(ffff8000009cd300,800100,ffff8000009cd358,0) at rt_ifa_del+0x3bb in_purgeaddr(ffff8000009cd300) at in_purgeaddr+0xc6 in_ifdetach(ffff8000009f7800) at in_ifdetach+0x74 if_detach(ffff8000009f7800) at if_detach+0x140 tun_clone_destroy(ffff8000009f7800) at tun_clone_destroy+0x1d8 tun_dev_close(5d00,7) at tun_dev_close+0x160 spec_close(ffff80001d80a5c0) at spec_close+0x311 VOP_CLOSE(fffffd8063fbac30,7,fffffd806c3bfc00,ffff80001d739ea8) at VOP_CLOSE+0xc0 vn_closefile(fffffd80635f3000,ffff80001d739ea8) at vn_closefile+0xd2 fdrop(fffffd80635f3000,ffff80001d739ea8) at fdrop+0xc2 closef(fffffd80635f3000,ffff80001d739ea8) at closef+0x117 fdfree(ffff80001d739ea8) at fdfree+0x100 exit1(ffff80001d739ea8,0,9,1) at exit1+0x32c postsig(ffff80001d739ea8,9) at postsig+0x4b2 userret(ffff80001d739ea8) at userret+0x159 syscall(ffff80001d80aa40) at syscall+0x42e Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbbc00, count: -24 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001d809e30 rbx 0xffff80001d809ee0 rdx 0x2 rcx 0x1 rax 0x1 r8 0xffff80001d809df0 r9 0x1 r10 0xd4241a3d9385089b r11 0x2f0c161d442407 r12 0x3000000008 r13 0xffff80001d809e40 r14 0x100 r15 0x1 rip 0xffffffff81664c08 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001d809e20 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.0) pid=492527 stat=onproc flags process=a proc=2000 pri=32, usrpri=55, nice=20 forw=0xffffffffffffffff, list=0xffff80001d739c38,0xffffffff8258ca18 process=0xffff8000ffffae70 user=0xffff80001d805000, vmspace=0xfffffd806bc09660 estcpu=5, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 14437 215183 58795 0 3 0x82 wait syz-execprog 14437 192725 58795 0 3 0x4000082 thrsleep syz-execprog 14437 307517 58795 0 3 0x4000082 thrsleep syz-execprog 14437 116474 58795 0 3 0x4000082 thrsleep syz-execprog 14437 80335 58795 0 3 0x4000082 thrsleep syz-execprog 14437 180543 58795 0 3 0x4000082 kqread syz-execprog 14437 107210 58795 0 3 0x4000082 thrsleep syz-execprog 58795 60966 96331 0 3 0x10008a pause ksh 96331 113117 89968 0 3 0x92 select sshd 44595 418042 1 0 3 0x100083 ttyin getty 89968 385447 1 0 3 0x80 select sshd 87215 448947 33768 73 3 0x100090 kqread syslogd 33768 36618 1 0 3 0x100082 netio syslogd 55143 36980 1 77 3 0x100090 poll dhclient 60636 436629 1 0 3 0x80 poll dhclient 83208 151496 0 0 3 0x14200 bored smr 49067 370566 0 0 3 0x14200 pgzero zerothread 83654 42876 0 0 3 0x14200 aiodoned aiodoned 66120 297687 0 0 3 0x14200 syncer update 95352 69646 0 0 3 0x14200 cleaner cleaner 67063 117099 0 0 3 0x14200 reaper reaper 94762 350549 0 0 3 0x14200 pgdaemon pagedaemon 54100 94760 0 0 3 0x14200 bored crynlk 41970 490559 0 0 3 0x14200 bored crypto 88822 343884 0 0 3 0x40014200 acpi0 acpi0 24022 16765 0 0 3 0x14200 bored softnet 91452 398941 0 0 2 0x14200 systqmp 2931 130619 0 0 3 0x14200 bored systq 45751 293272 0 0 3 0x40014200 bored softclock 50968 387990 0 0 3 0x40014200 idle0 1 263153 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9441 6321K 6321K 78643K 10540 0 pcb 13 8K 8K 78643K 13 0 rtable 83 2K 2K 78643K 153 0 ifaddr 32 8K 9K 78643K 33 0 counters 20 16K 16K 78643K 20 0 ioctlops 0 0K 2K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1182 74K 74K 78643K 1187 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 0K 0K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 2 4K 12K 78643K 18 0 proc 47 38K 54K 78643K 318 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 171 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 66 11K 11K 78643K 837 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 6 0K 0K 78643K 6 0 temp 23 3029K 3093K 78643K 1621 0 kqueue 3 4K 4K 78643K 3 0 SYN cache 2 16K 16K 78643K 2 0 ddb> 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 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 27 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 2 1 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 27 0 21 1 0 1 1 0 8 0 nd6 48 3 0 0 1 0 1 1 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 1415 0 22 88 0 88 88 0 8 0 ffsino 240 1415 0 22 82 0 82 82 0 8 0 nchpl 144 1631 0 39 60 0 60 60 0 8 1 uvmvnodes 72 1424 0 0 26 0 26 26 0 8 0 vnodes 208 1424 0 0 75 0 75 75 0 8 0 namei 1024 3915 0 3915 2 1 1 1 0 8 1 scxspl 192 3679 0 3679 1 0 1 1 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 424 212 0 186 4 0 4 4 0 8 0 knotepl 112 47 0 38 1 0 1 1 0 8 0 kqueuepl 144 2 0 0 1 0 1 1 0 8 0 pipelkpl 16 70 0 64 2 1 1 1 0 8 0 pipepl 120 140 0 129 2 1 1 1 0 8 0 fdescpl 432 198 0 186 2 0 2 2 0 8 0 filepl 120 973 0 922 2 0 2 2 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 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 57 0 50 1 0 1 1 0 8 0 zombiepl 144 187 0 186 2 1 1 1 0 8 0 processpl 920 212 0 186 4 0 4 4 0 8 0 procpl 624 218 0 186 3 0 3 3 0 8 0 sockpl 400 71 0 55 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 2 1 1 1 0 8 1 mcl2k 2048 5501 0 5462 8 2 6 8 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9568 0 9494 9 3 6 6 0 8 0 mbufpl: pool(0xffffffff82572608:mbufpl): free list modified: page 0xfffffd805a6cc000; item ordinal 0; addr 0xfffffd805a6cc100 (p 0xfffffd806c3c4000); offset 0x0=0x0 mbufpl: pool(0xffffffff82572608:mbufpl): page inconsistency: page 0xfffffd805a6cc000; item ordinal 1; addr 0x30743bc962043f42 bufpl 280 2892 0 125 198 0 198 198 0 8 0 anonpl 16 20309 0 18825 14 2 12 12 0 107 4 amapchunkpl 152 733 0 674 4 0 4 4 0 158 0 amappl16 192 132 0 106 2 0 2 2 0 8 0 amappl15 184 3 0 1 1 0 1 1 0 8 0 amappl14 176 27 0 22 1 0 1 1 0 8 0 amappl13 168 18 0 17 2 1 1 1 0 8 0 amappl12 160 9 0 6 2 1 1 1 0 8 0 amappl11 152 45 0 36 1 0 1 1 0 8 0 amappl10 144 12 0 9 1 0 1 1 0 8 0 amappl9 136 217 0 215 1 0 1 1 0 8 0 amappl8 128 236 0 229 1 0 1 1 0 8 0 amappl7 120 103 0 92 1 0 1 1 0 8 0 amappl6 112 21 0 19 3 2 1 1 0 8 0 amappl5 104 144 0 134 1 0 1 1 0 8 0 amappl4 96 431 0 405 1 0 1 1 0 8 0 amappl3 88 107 0 100 1 0 1 1 0 8 0 amappl2 80 808 0 755 3 1 2 2 0 8 0 amappl1 72 13234 0 12850 24 7 17 17 0 8 8 amappl 80 419 0 394 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 24 198 0 186 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 198 0 186 1 0 1 1 0 8 0 vmmpekpl 168 6162 0 6143 1 0 1 1 0 8 0 vmmpepl 168 28794 0 27963 81 13 68 68 0 357 31 vmsppl 272 197 0 186 1 0 1 1 0 8 0 pdppl 4096 402 0 372 5 0 5 5 0 8 0 pvpl 32 104443 0 100747 104 2 102 102 0 265 70 pmappl 200 197 0 186 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 218 0 9 6 0 6 6 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x18 panic(ffffffff8224b96d) at panic+0x15c pool_do_get(ffffffff82572608,2,ffff80001d809fc8) at pool_do_get+0x42a pool_get(ffffffff82572608,2) at pool_get+0xb5 m_gethdr(2,1) at m_gethdr+0x4c rtm_msg1(2,ffff80001d80a120) at rtm_msg1+0x6e rtm_send(fffffd805e378150,2,0,0) at rtm_send+0x120 rt_ifa_del(ffff8000009cd300,800100,ffff8000009cd358,0) at rt_ifa_del+0x3bb in_purgeaddr(ffff8000009cd300) at in_purgeaddr+0xc6 in_ifdetach(ffff8000009f7800) at in_ifdetach+0x74 if_detach(ffff8000009f7800) at if_detach+0x140 tun_clone_destroy(ffff8000009f7800) at tun_clone_destroy+0x1d8 tun_dev_close(5d00,7) at tun_dev_close+0x160 spec_close(ffff80001d80a5c0) at spec_close+0x311 VOP_CLOSE(fffffd8063fbac30,7,fffffd806c3bfc00,ffff80001d739ea8) at VOP_CLOSE+0xc0 vn_closefile(fffffd80635f3000,ffff80001d739ea8) at vn_closefile+0xd2 fdrop(fffffd80635f3000,ffff80001d739ea8) at fdrop+0xc2 closef(fffffd80635f3000,ffff80001d739ea8) at closef+0x117 fdfree(ffff80001d739ea8) at fdfree+0x100 exit1(ffff80001d739ea8,0,9,1) at exit1+0x32c postsig(ffff80001d739ea8,9) at postsig+0x4b2 userret(ffff80001d739ea8) at userret+0x159 syscall(ffff80001d80aa40) at syscall+0x42e Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbbc00, count: -24 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x18 panic(ffffffff8224b96d) at panic+0x15c pool_do_get(ffffffff82572608,2,ffff80001d809fc8) at pool_do_get+0x42a pool_get(ffffffff82572608,2) at pool_get+0xb5 m_gethdr(2,1) at m_gethdr+0x4c rtm_msg1(2,ffff80001d80a120) at rtm_msg1+0x6e rtm_send(fffffd805e378150,2,0,0) at rtm_send+0x120 rt_ifa_del(ffff8000009cd300,800100,ffff8000009cd358,0) at rt_ifa_del+0x3bb in_purgeaddr(ffff8000009cd300) at in_purgeaddr+0xc6 in_ifdetach(ffff8000009f7800) at in_ifdetach+0x74 if_detach(ffff8000009f7800) at if_detach+0x140 tun_clone_destroy(ffff8000009f7800) at tun_clone_destroy+0x1d8 tun_dev_close(5d00,7) at tun_dev_close+0x160 spec_close(ffff80001d80a5c0) at spec_close+0x311 VOP_CLOSE(fffffd8063fbac30,7,fffffd806c3bfc00,ffff80001d739ea8) at VOP_CLOSE+0xc0 vn_closefile(fffffd80635f3000,ffff80001d739ea8) at vn_closefile+0xd2 fdrop(fffffd80635f3000,ffff80001d739ea8) at fdrop+0xc2 closef(fffffd80635f3000,ffff80001d739ea8) at closef+0x117 fdfree(ffff80001d739ea8) at fdfree+0x100 exit1(ffff80001d739ea8,0,9,1) at exit1+0x32c postsig(ffff80001d739ea8,9) at postsig+0x4b2 userret(ffff80001d739ea8) at userret+0x159 syscall(ffff80001d80aa40) at syscall+0x42e Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbbc00, count: -24 ddb>