login: uvm_fault(0xffffffff82542550, 0xfffffddcce2c8d0f, 0, 1) -> e kernel: page 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 kernel page fault uvm_fault(0xffffffff82542550, 0xfffffddcce2c8d0f, 0, 1) -> e pool_do_put(ffffffff8254cc00,fffffd805a73d300) at pool_do_put+0x12e sys/kern/subr_pool.c:836 end trace frame: 0xffff80001d415b50, count: 0 ddb> trace pool_do_put(ffffffff8254cc00,fffffd805a73d300) at pool_do_put+0x12e sys/kern/subr_pool.c:836 pool_put(ffffffff8254cc00,fffffd805a73d300) at pool_put+0x4b sys/kern/subr_pool.c:794 m_free(fffffd805a73d300) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff8000009c6c00,800100,ffff8000009c6c40,0) at rt_ifa_del+0x402 sys/net/route.c:1196 in6_unlink_ifa(ffff8000009c6c00,ffff8000009f0800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff8000009f0800,ffff80001d4160b0,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff80001d4160b0,ffff8000009f0800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd805da7daf8,8080691a,ffff80001d4160b0,ffff80001d34a388) at ifioctl+0xe60 sys/net/if.c:2290 sys_ioctl(ffff80001d34a388,ffff80001d4161c8,ffff80001d416210) at sys_ioctl+0x498 syscall(ffff80001d416290) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc67e0, count: -11 ddb> show registers rdi 0 rsi 0xfffffddcce2c8d07 rbp 0xffff80001d415b00 rbx 0xfffffddcce2c8d07 rdx 0xffff80001d415a50 rcx 0x1000 __ALIGN_SIZE rax 0xfffffd805a73e000 r8 0x4 r9 0x5 r10 0x8a4f164e363ac19 r11 0xd66f1d8bbd634036 r12 0xfffffd805a73d300 r13 0x972af6dcce2c8d07 r14 0xffffffff8254cc00 mbpool r15 0xfffffd805f303088 rip 0xffffffff819afc4e pool_do_put+0x12e cs 0x8 rflags 0x10297 __ALIGN_SIZE+0xf297 rsp 0xffff80001d415a50 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=483037 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d349758,0xffffffff8257def0 process=0xffff80001d39e000 user=0xffff80001d411000, vmspace=0xfffffd806bc09110 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *37679 483037 20742 0 7 0 syz-executor.0 20742 110491 89644 0 3 0x82 nanosleep syz-executor.0 89644 210321 8201 0 3 0x82 thrsleep syz-execprog 89644 512740 8201 0 3 0x4000082 nanosleep syz-execprog 89644 253750 8201 0 3 0x4000082 thrsleep syz-execprog 89644 513490 8201 0 3 0x4000082 thrsleep syz-execprog 89644 154469 8201 0 3 0x4000082 kqread syz-execprog 89644 265439 8201 0 3 0x4000082 thrsleep syz-execprog 89644 182139 8201 0 3 0x4000082 thrsleep syz-execprog 8201 6625 84918 0 3 0x10008a pause ksh 84918 432958 58718 0 3 0x92 select sshd 5006 358141 1 0 3 0x100083 ttyin getty 58718 147955 1 0 3 0x80 select sshd 14754 152926 50011 73 3 0x100090 kqread syslogd 50011 485859 1 0 3 0x100082 netio syslogd 89435 281479 1 77 3 0x100090 poll dhclient 64901 208657 1 0 3 0x80 poll dhclient 29606 161206 0 0 2 0x14200 zerothread 28610 30499 0 0 3 0x14200 aiodoned aiodoned 43045 336633 0 0 3 0x14200 syncer update 49310 92655 0 0 3 0x14200 cleaner cleaner 52298 36061 0 0 3 0x14200 reaper reaper 32288 274970 0 0 3 0x14200 pgdaemon pagedaemon 11301 505918 0 0 3 0x14200 bored crynlk 66493 474763 0 0 3 0x14200 bored crypto 28401 285333 0 0 3 0x40014200 acpi0 acpi0 64426 151360 0 0 3 0x14200 bored softnet 6136 9358 0 0 3 0x14200 bored systqmp 22651 354347 0 0 3 0x14200 bored systq 20043 112828 0 0 3 0x40014200 bored softclock 47167 512555 0 0 3 0x40014200 idle0 4781 364812 0 0 3 0x14200 bored smr 1 452158 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 9442 6321K 6321K 78643K 10539 0 pcb 13 8K 8K 78643K 13 0 rtable 83 2K 2K 78643K 153 0 ifaddr 33 9K 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 1180 74K 74K 78643K 1185 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 3 8K 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 76 11K 12K 78643K 884 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 3001K 3065K 78643K 1688 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 20 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 0 11 0 11 11 0 8 0 art_table 32 168 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 dino1pl 128 1415 0 19 46 0 46 46 0 8 0 ffsino 240 1415 0 19 83 0 83 83 0 8 0 nchpl 144 1640 0 35 60 0 60 60 0 8 0 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 3862 0 3862 1 0 1 1 0 8 1 scxspl 192 4335 0 4335 1 0 1 1 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 432 197 0 185 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 pipelkpl 16 67 0 60 1 0 1 1 0 8 0 pipepl 120 134 0 121 1 0 1 1 0 8 0 fdescpl 432 198 0 185 2 0 2 2 0 8 0 filepl 120 997 0 943 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 144 185 0 185 1 0 1 1 0 8 1 processpl 896 212 0 185 4 0 4 4 0 8 0 procpl 624 218 0 185 3 0 3 3 0 8 0 sockpl 400 71 0 54 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 2 1 1 1 0 8 1 mcl2k 2048 5502 0 5474 6 2 4 6 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9577 0 9505 6 1 5 5 0 8 0 mbufpl: pool(0xffffffff8254cc00:mbufpl): free list modified: page 0xfffffd805a73d000; item ordinal 3; addr 0xfffffd805a73d400 (p 0xfffffd805f303000); offset 0x0=0x0 mbufpl: pool(0xffffffff8254cc00:mbufpl): page inconsistency: page 0xfffffd805a73d000; item ordinal 4; addr 0xfffffddcce2c8d07 bufpl 280 3713 0 179 253 0 253 253 0 8 0 anonpl 16 21767 0 20291 15 2 13 13 0 107 6 amapchunkpl 152 792 0 730 5 0 5 5 0 158 1 amappl16 192 78 0 53 2 0 2 2 0 8 0 amappl15 184 50 0 46 1 0 1 1 0 8 0 amappl14 176 20 0 18 1 0 1 1 0 8 0 amappl12 160 19 0 14 2 1 1 1 0 8 0 amappl11 152 43 0 32 1 0 1 1 0 8 0 amappl10 144 10 0 7 1 0 1 1 0 8 0 amappl9 136 381 0 379 1 0 1 1 0 8 0 amappl8 128 85 0 75 1 0 1 1 0 8 0 amappl7 120 88 0 78 1 0 1 1 0 8 0 amappl6 112 55 0 50 1 0 1 1 0 8 0 amappl5 104 156 0 147 1 0 1 1 0 8 0 amappl4 96 420 0 400 1 0 1 1 0 8 0 amappl3 88 126 0 117 1 0 1 1 0 8 0 amappl2 80 823 0 762 3 0 3 3 0 8 1 amappl1 72 13544 0 13141 27 10 17 20 0 8 8 amappl 80 442 0 416 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 0 185 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 198 0 185 1 0 1 1 0 8 0 vmmpekpl 168 6033 0 6015 1 0 1 1 0 8 0 vmmpepl 168 29351 0 28456 88 10 78 78 0 357 39 vmsppl 272 197 0 185 1 0 1 1 0 8 0 pdppl 4096 402 0 370 5 0 5 5 0 8 0 pvpl 32 105128 0 101344 114 1 113 113 0 265 81 pmappl 200 197 0 185 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 127 0 6 4 0 4 4 0 8 0 ddb>