login: kernel: protection fault trap, code=0 Stopped at pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace pool_do_put(ffffffff828610c8,fffffd805c15d200) at pool_do_put+0x12e sys/kern/subr_pool.c:836 pool_put(ffffffff828610c8,fffffd805c15d200) at pool_put+0x4b sys/kern/subr_pool.c:794 m_free(fffffd805c15d200) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff8000006b5600,800100,ffff8000006b5640,0) at rt_ifa_del+0x402 sys/net/route.c:1199 in6_unlink_ifa(ffff8000006b5600,ffff800000ac6800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000ac6800,ffff80001d781ae0,0) at in6_update_ifa+0x13e7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff80001d781ae0,ffff800000ac6800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd805da7daf8,8080691a,ffff80001d781ae0,ffff80001d6a9c38) at ifioctl+0xe60 sys/net/if.c:2181 sys_ioctl(ffff80001d6a9c38,ffff80001d781bf8,ffff80001d781c40) at sys_ioctl+0x4a1 syscall(ffff80001d781cc0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbde30, count: -11 ddb> show registers rdi 0 rsi 0xd23bfb8924c32e5b rbp 0xffff80001d781530 rbx 0xd23bfb8924c32e5b rdx 0xffff80001d781480 rcx 0x1000 __ALIGN_SIZE rax 0x1 r8 0x4 r9 0x5 r10 0x544226dca44aec1a r11 0x411776fd57df3279 r12 0xfffffd805c15d200 r13 0xd23bfb8924c32e5b r14 0xffffffff828610c8 mbpool r15 0xfffffd806c3c4e70 rip 0xffffffff812cec3e pool_do_put+0x12e cs 0x8 rflags 0x10216 __ALIGN_SIZE+0xf216 rsp 0xffff80001d781480 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=228411 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6aa868,0xffffffff82832e60 process=0xffff80001d6c5230 user=0xffff80001d77c000, vmspace=0xfffffd806bc0abb0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *47912 228411 58826 0 7 0 syz-executor.0 58826 392772 58934 0 3 0x82 nanosleep syz-executor.0 58934 377470 46432 0 3 0x82 thrsleep syz-execprog 58934 330459 46432 0 3 0x4000082 nanosleep syz-execprog 58934 390240 46432 0 3 0x4000082 thrsleep syz-execprog 58934 370650 46432 0 3 0x4000082 kqread syz-execprog 58934 137437 46432 0 3 0x4000082 thrsleep syz-execprog 58934 484710 46432 0 3 0x4000082 thrsleep syz-execprog 46432 229360 18005 0 3 0x10008a pause ksh 18005 22160 38515 0 3 0x92 select sshd 16279 8033 1 0 3 0x100083 ttyin getty 38515 425614 1 0 3 0x80 select sshd 67080 495547 2446 73 3 0x100090 kqread syslogd 2446 288859 1 0 3 0x100082 netio syslogd 51255 424217 1 77 3 0x100090 poll dhclient 12656 522963 1 0 3 0x80 poll dhclient 87565 86503 0 0 3 0x14200 bored smr 78567 256229 0 0 2 0x14200 zerothread 50693 465117 0 0 3 0x14200 aiodoned aiodoned 27283 98688 0 0 3 0x14200 syncer update 46270 249553 0 0 3 0x14200 cleaner cleaner 41489 409724 0 0 3 0x14200 reaper reaper 96956 368135 0 0 3 0x14200 pgdaemon pagedaemon 4004 294865 0 0 3 0x14200 bored crynlk 44330 123433 0 0 3 0x14200 bored crypto 61358 309045 0 0 3 0x40014200 acpi0 acpi0 30856 396225 0 0 3 0x14200 bored softnet 60056 513664 0 0 3 0x14200 bored systqmp 32400 54092 0 0 3 0x14200 bored systq 81347 135124 0 0 3 0x40014200 bored softclock 48250 517876 0 0 3 0x40014200 idle0 1 357223 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 6320K 6320K 78643K 10540 0 pcb 13 8K 8K 78643K 13 0 rtable 83 2K 2K 78643K 153 0 ifaddr 33 9K 9K 78643K 293 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 1809 195K 288K 78643K 12938 0 file desc 3 8K 12K 78643K 278 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 76 11K 12K 78643K 1128 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 4 0K 0K 78643K 6 0 temp 23 3845K 3909K 78643K 2142 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 2 0 1 0 8 0 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 296 287 0 280 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 256 145 0 0 10 0 10 10 0 8 0 art_table 32 146 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 1673 0 281 88 0 88 88 0 8 1 ffsino 240 1673 0 281 82 0 82 82 0 8 0 nchpl 144 2150 0 557 60 0 60 60 0 8 1 uvmvnodes 72 1682 0 0 31 0 31 31 0 8 0 vnodes 208 1682 0 0 89 0 89 89 0 8 0 namei 1024 4977 0 4977 2 1 1 1 0 8 1 scxspl 192 5961 0 5961 2 1 1 1 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 424 472 0 445 4 0 4 4 0 8 0 knotepl 112 48 0 36 1 0 1 1 0 8 0 kqueuepl 144 2 0 0 1 0 1 1 0 8 0 pipepl 272 71 0 63 2 1 1 1 0 8 0 fdescpl 432 458 0 445 2 0 2 2 0 8 0 filepl 120 1499 0 1443 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 144 445 0 445 2 1 1 1 0 8 1 processpl 928 472 0 445 4 0 4 4 0 8 0 procpl 624 477 0 445 3 0 3 3 0 8 0 sockpl 400 331 0 314 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 2 2 0 1 0 8 0 mcl2k 2048 4950 0 4916 8 3 5 8 0 8 0 mtagpl 96 2 0 2 1 1 0 1 0 8 0 mbufpl 256 8976 0 8889 8 2 6 6 0 8 0 mbufpl: pool(0xffffffff828610c8:mbufpl): free list modified: page 0xfffffd805c15d000; item ordinal 3; addr 0xfffffd805c15d300 (p 0xfffffd806c3c4000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd805c15d000; item ordinal 3; addr 0xfffffd805c15d300 (p 0xfffffd806c3c4000); offset 0x0=0x0 mbufpl: pool(0xffffffff828610c8:mbufpl): page inconsistency: page 0xfffffd805c15d000; item ordinal 4; addr 0xd23bfb8924c32e5b bufpl 280 3159 0 116 218 0 218 218 0 8 0 anonpl 16 28345 0 26612 14 2 12 12 0 107 3 amapchunkpl 152 1076 0 1011 5 1 4 4 0 158 1 amappl16 192 934 0 889 3 0 3 3 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 263 0 260 1 0 1 1 0 8 0 amappl13 168 21 0 19 2 1 1 1 0 8 0 amappl12 160 24 0 22 1 0 1 1 0 8 0 amappl11 152 304 0 291 1 0 1 1 0 8 0 amappl10 144 13 0 9 1 0 1 1 0 8 0 amappl9 136 196 0 194 1 0 1 1 0 8 0 amappl8 128 238 0 226 2 1 1 1 0 8 0 amappl7 120 96 0 86 1 0 1 1 0 8 0 amappl6 112 293 0 285 1 0 1 1 0 8 0 amappl5 104 134 0 123 1 0 1 1 0 8 0 amappl4 96 686 0 663 1 0 1 1 0 8 0 amappl3 88 127 0 119 1 0 1 1 0 8 0 amappl2 80 1329 0 1275 2 0 2 2 0 8 0 amappl1 72 15822 0 15430 23 6 17 17 0 8 8 amappl 80 703 0 676 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 458 0 445 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 458 0 445 1 0 1 1 0 8 0 vmmpekpl 168 6610 0 6590 2 0 2 2 0 8 1 vmmpepl 168 40618 0 39714 85 16 69 69 0 357 29 vmsppl 272 457 0 445 1 0 1 1 0 8 0 pdppl 4096 922 0 890 5 0 5 5 0 8 0 pvpl 32 134403 0 130412 108 7 101 101 0 265 68 pmappl 200 457 0 445 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 220 0 11 6 0 6 6 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pool_do_put(ffffffff828610c8,fffffd805c15d200) at pool_do_put+0x12e sys/kern/subr_pool.c:836 pool_put(ffffffff828610c8,fffffd805c15d200) at pool_put+0x4b sys/kern/subr_pool.c:794 m_free(fffffd805c15d200) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff8000006b5600,800100,ffff8000006b5640,0) at rt_ifa_del+0x402 sys/net/route.c:1199 in6_unlink_ifa(ffff8000006b5600,ffff800000ac6800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000ac6800,ffff80001d781ae0,0) at in6_update_ifa+0x13e7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff80001d781ae0,ffff800000ac6800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd805da7daf8,8080691a,ffff80001d781ae0,ffff80001d6a9c38) at ifioctl+0xe60 sys/net/if.c:2181 sys_ioctl(ffff80001d6a9c38,ffff80001d781bf8,ffff80001d781c40) at sys_ioctl+0x4a1 syscall(ffff80001d781cc0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbde30, count: -11 ddb> machine ddbcpu 1 No such command ddb>