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(ffffffff82570990,fffffd80321b5b00) at pool_do_put+0x12e sys/kern/subr_pool.c:844 pool_put(ffffffff82570990,fffffd80321b5b00) at pool_put+0x4b sys/kern/subr_pool.c:802 m_free(fffffd80321b5b00) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff8000006a0b00,800100,ffff8000006a0b58,0) at rt_ifa_del+0x436 sys/net/route.c:1201 in_purgeaddr(ffff8000006a0b00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:738 [inline] in_purgeaddr(ffff8000006a0b00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:562 [inline] in_purgeaddr(ffff8000006a0b00) at in_purgeaddr+0xc6 sys/netinet/in.c:678 in_ifinit(ffff800000a61800,ffff8000006a0b00,ffff800014918a60,1) at in_ifinit+0x234 sys/netinet/in.c:664 in_ioctl_sifaddr(8020690c,ffff800014918a50,ffff800000a61800,1) at in_ioctl_sifaddr+0x208 sys/netinet/in.c:360 in_ioctl(8020690c,ffff800014918a50,ffff800000a61800,1) at in_ioctl+0x1e7 sys/netinet/in.c:231 ifioctl(fffffd803d41f600,8020690c,ffff800014918a50,ffff8000ffff8770) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff8000ffff8770,ffff800014918b68,ffff800014918bb0) at sys_ioctl+0x5b9 syscall(ffff800014918c30) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,c4e67bf010) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd3560, count: -12 ddb> show registers rdi 0 rsi 0x6afcae9f15153fe rbp 0xffff800014918590 rbx 0x6afcae9f15153fe rdx 0xffff8000149184e0 rcx 0x1000 __ALIGN_SIZE rax 0xfffffd80321b6000 r8 0x4 r9 0x5 r10 0x7034afd661193270 r11 0xa6ef98b515bde138 r12 0xfffffd80321b5b00 r13 0x6afcae9f15153fe r14 0xffffffff82570990 mbpool r15 0xfffffd803143d7f0 rip 0xffffffff81284e3e pool_do_put+0x12e cs 0x8 rflags 0x10292 __ALIGN_SIZE+0xf292 rsp 0xffff8000149184e0 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=391133 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8008,0xffffffff825832a0 process=0xffff8000148a2378 user=0xffff800014913000, vmspace=0xfffffd803f013330 estcpu=12, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *37706 391133 61652 0 7 0 syz-executor.0 61652 218955 29778 0 3 0x82 nanosleep syz-executor.0 29778 99187 22817 0 3 0x82 thrsleep syz-execprog 29778 489069 22817 0 3 0x4000082 nanosleep syz-execprog 29778 311515 22817 0 3 0x4000082 thrsleep syz-execprog 29778 408849 22817 0 3 0x4000082 thrsleep syz-execprog 29778 119639 22817 0 3 0x4000082 kqread syz-execprog 29778 331825 22817 0 3 0x4000082 thrsleep syz-execprog 29778 249520 22817 0 3 0x4000082 thrsleep syz-execprog 22817 427669 6271 0 3 0x10008a pause ksh 6271 450282 28762 0 3 0x92 select sshd 24475 285866 1 0 3 0x100083 ttyin getty 28762 422007 1 0 3 0x80 select sshd 72162 185877 86250 73 3 0x100090 kqread syslogd 86250 371959 1 0 3 0x100082 netio syslogd 7254 309371 1 77 3 0x100090 poll dhclient 66064 273440 1 0 3 0x80 poll dhclient 5295 175421 0 0 2 0x14200 zerothread 87944 376499 0 0 3 0x14200 aiodoned aiodoned 78830 81274 0 0 3 0x14200 syncer update 1893 130764 0 0 3 0x14200 cleaner cleaner 54119 381258 0 0 3 0x14200 reaper reaper 98222 481681 0 0 3 0x14200 pgdaemon pagedaemon 79249 490311 0 0 3 0x14200 bored crynlk 60266 469793 0 0 3 0x14200 bored crypto 66755 420439 0 0 3 0x40014200 acpi0 acpi0 53235 150339 0 0 3 0x14200 bored softnet 47944 113774 0 0 3 0x14200 bored systqmp 4244 279117 0 0 3 0x14200 bored systq 36971 143300 0 0 3 0x40014200 bored softclock 37020 460085 0 0 3 0x40014200 idle0 44164 20430 0 0 3 0x14200 bored smr 1 363440 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 Kern Lim devbuf 9433 6310K 6310K 78643K 10526 0 0 pcb 13 8K 8K 78643K 13 0 0 rtable 77 2K 2K 78643K 155 0 0 ifaddr 29 8K 8K 78643K 29 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 14 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1180 74K 74K 78643K 1185 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 1K 78643K 2 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 2 0K 0K 78643K 2 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 3 8K 12K 78643K 19 0 0 proc 47 38K 54K 78643K 307 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 in_multi 22 1K 1K 78643K 22 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 18 79K 79K 78643K 18 0 0 exec 0 0K 1K 78643K 172 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 65 11K 11K 78643K 844 0 0 UVM aobj 2 2K 2K 78643K 2 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 NDP 6 0K 0K 78643K 6 0 0 temp 39 3517K 3581K 78643K 3059 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 4 0 1 1 0 1 1 0 8 0 rtpcb 80 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 4 1 0 1 1 0 8 0 unpcb 120 29 0 20 1 0 1 1 0 8 0 syncache 264 5 0 5 1 0 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 28 0 21 1 0 1 1 0 8 0 nd6 48 2 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 167 0 2 11 0 11 11 0 8 0 art_table 32 168 0 2 2 0 2 2 0 8 0 art_node 16 33 0 6 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1414 0 20 45 0 45 45 0 8 0 ffsino 240 1414 0 20 83 0 83 83 0 8 0 nchpl 144 1655 0 51 60 0 60 60 0 8 0 uvmvnodes 72 1423 0 0 26 0 26 26 0 8 0 vnodes 208 1423 0 0 75 0 75 75 0 8 0 namei 1024 3843 0 3843 2 1 1 1 0 8 1 scxspl 192 4128 0 4128 8 1 7 7 0 8 7 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 432 198 0 186 2 0 2 2 0 8 0 knotepl 112 39 0 28 1 0 1 1 0 8 0 kqueuepl 104 2 0 0 1 0 1 1 0 8 0 pipepl 112 138 0 125 2 1 1 1 0 8 0 fdescpl 424 199 0 186 2 0 2 2 0 8 0 filepl 120 981 0 926 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 47 0 40 1 0 1 1 0 8 0 zombiepl 144 186 0 186 2 1 1 1 0 8 1 processpl 864 213 0 186 4 0 4 4 0 8 0 procpl 632 219 0 186 3 0 3 3 0 8 0 sockpl 384 74 0 56 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 1 0 1 1 0 8 1 mcl2k 2048 5480 0 5442 8 2 6 8 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9483 0 9430 10 4 6 6 0 8 1 mbufpl: pool(0xffffffff82570990:mbufpl): free list modified: page 0xfffffd80321b5000; item ordinal 6; addr 0xfffffd80321b5c00 (p 0xfffffd803143d000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd80321b5000; item ordinal 6; addr 0xfffffd80321b5c00 (p 0xfffffd803143d000); offset 0x0=0x0 mbufpl: pool(0xffffffff82570990:mbufpl): page inconsistency: page 0xfffffd80321b5000; item ordinal 7; addr 0x6afcae9f15153fe bufpl 256 5786 0 1328 279 0 279 279 0 8 0 anonpl 16 20177 0 18694 15 2 13 13 0 62 6 amapchunkpl 152 802 0 742 5 0 5 5 0 158 2 amappl16 192 136 0 105 2 0 2 2 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 23 0 19 2 1 1 1 0 8 0 amappl12 160 7 0 6 1 0 1 1 0 8 0 amappl11 152 46 0 35 1 0 1 1 0 8 0 amappl10 144 12 0 10 2 1 1 1 0 8 0 amappl9 136 412 0 407 1 0 1 1 0 8 0 amappl8 128 110 0 101 1 0 1 1 0 8 0 amappl7 120 29 0 27 1 0 1 1 0 8 0 amappl6 112 73 0 64 1 0 1 1 0 8 0 amappl5 104 139 0 129 1 0 1 1 0 8 0 amappl4 96 431 0 404 1 0 1 1 0 8 0 amappl3 88 115 0 110 1 0 1 1 0 8 0 amappl2 80 841 0 785 4 1 3 3 0 8 1 amappl1 72 13313 0 12920 26 8 18 20 0 8 8 amappl 80 420 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 17 0 17 1 1 0 1 0 8 0 aobjpl 64 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 199 0 186 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 199 0 186 1 0 1 1 0 8 0 vmmpekpl 168 6192 0 6177 1 0 1 1 0 8 0 vmmpepl 168 28936 0 28069 88 12 76 76 0 357 38 vmsppl 272 198 0 186 1 0 1 1 0 8 0 pdppl 4096 404 0 372 5 0 5 5 0 8 0 pvpl 32 103209 0 99452 117 4 113 113 0 265 81 pmappl 200 198 0 186 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 407 0 9 12 0 12 12 0 8 0