login: uvm_fault(0xfffffd806bc09550, 0x263ab7, 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(0xfffffd806bc09550, 0x263ab7, 0, 1) -> e pool_do_put(ffffffff825a8878,fffffd805bfeae00) at pool_do_put+0x12e sys/kern/subr_pool.c:836 end trace frame: 0xffff80001d405990, count: 0 ddb> trace pool_do_put(ffffffff825a8878,fffffd805bfeae00) at pool_do_put+0x12e sys/kern/subr_pool.c:836 pool_put(ffffffff825a8878,fffffd805bfeae00) at pool_put+0x4b sys/kern/subr_pool.c:794 m_free(fffffd805bfeae00) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff8000009c7300,800100,ffff8000009c7340,0) at rt_ifa_del+0x402 sys/net/route.c:1196 in6_unlink_ifa(ffff8000009c7300,ffff8000009f1800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff8000009f1800,ffff80001d405ef0,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff80001d405ef0,ffff8000009f1800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd805db04648,8080691a,ffff80001d405ef0,ffff80001d339ea8) at ifioctl+0xe60 sys/net/if.c:2290 sys_ioctl(ffff80001d339ea8,ffff80001d406008,ffff80001d406050) at sys_ioctl+0x4a1 syscall(ffff80001d4060d0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd39a0, count: -11 ddb> show registers rdi 0 rsi 0x263aaf acpi_pdirpa+0x24f917 rbp 0xffff80001d405940 rbx 0x263aaf acpi_pdirpa+0x24f917 rdx 0xffff80001d405890 rcx 0x1000 __ALIGN_SIZE rax 0xfffffd805bfeb000 r8 0x4 r9 0x5 r10 0xcfaf89350afca32d r11 0xfd93187acba83e5 r12 0xfffffd805bfeae00 r13 0x3b247a506263aaf r14 0xffffffff825a8878 mbpool r15 0xfffffd806b521248 rip 0xffffffff820538ce pool_do_put+0x12e cs 0x8 rflags 0x10292 __ALIGN_SIZE+0xf292 rsp 0xffff80001d405890 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=76610 stat=onproc flags process=0 proc=0 pri=52, usrpri=52, nice=20 forw=0xffffffffffffffff, list=0xffff80001d33a118,0xffffffff8256ad48 process=0xffff80001d38e000 user=0xffff80001d401000, vmspace=0xfffffd806bc09550 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *72315 76610 98412 0 7 0 syz-executor.0 98412 208449 33920 0 3 0x82 nanosleep syz-executor.0 33920 190401 58001 0 3 0x82 thrsleep syz-execprog 33920 512545 58001 0 3 0x4000082 nanosleep syz-execprog 33920 343456 58001 0 3 0x4000082 thrsleep syz-execprog 33920 24767 58001 0 3 0x4000082 thrsleep syz-execprog 33920 331814 58001 0 3 0x4000082 thrsleep syz-execprog 33920 314031 58001 0 3 0x4000082 kqread syz-execprog 33920 130965 58001 0 3 0x4000082 thrsleep syz-execprog 58001 262276 40361 0 3 0x10008a pause ksh 40361 168596 17773 0 3 0x92 select sshd 47814 513692 1 0 3 0x100083 ttyin getty 17773 505377 1 0 3 0x80 select sshd 34620 146881 87605 73 3 0x100090 kqread syslogd 87605 215674 1 0 3 0x100082 netio syslogd 65815 285266 1 77 3 0x100090 poll dhclient 61582 431789 1 0 3 0x80 poll dhclient 40363 309152 0 0 3 0x14200 bored smr 94574 379058 0 0 2 0x14200 zerothread 51710 277765 0 0 3 0x14200 aiodoned aiodoned 74150 92028 0 0 3 0x14200 syncer update 84860 113753 0 0 3 0x14200 cleaner cleaner 43064 113848 0 0 3 0x14200 reaper reaper 44830 263499 0 0 3 0x14200 pgdaemon pagedaemon 55766 139441 0 0 3 0x14200 bored crynlk 25570 106374 0 0 3 0x14200 bored crypto 17057 170068 0 0 3 0x40014200 acpi0 acpi0 76373 61502 0 0 3 0x14200 bored softnet 38246 444083 0 0 3 0x14200 bored systqmp 44515 22066 0 0 3 0x14200 bored systq 87595 205708 0 0 3 0x40014200 bored softclock 480 10040 0 0 3 0x40014200 idle0 1 453768 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 9443 6321K 6321K 78643K 10540 0 pcb 13 8K 8K 78643K 13 0 rtable 83 2K 2K 78643K 153 0 ifaddr 33 9K 9K 78643K 79 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 3 8K 12K 78643K 64 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 67 11K 11K 78643K 889 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 4 0K 0K 78643K 6 0 temp 23 3005K 3069K 78643K 1756 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 280 73 0 66 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 dino1pl 128 1460 0 65 46 0 46 46 0 8 1 ffsino 240 1460 0 65 83 0 83 83 0 8 0 nchpl 144 1731 0 128 60 0 60 60 0 8 0 uvmvnodes 72 1469 0 0 27 0 27 27 0 8 0 vnodes 208 1469 0 0 78 0 78 78 0 8 0 namei 1024 4015 0 4015 2 1 1 1 0 8 1 scxspl 192 4794 0 4794 3 2 1 1 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 424 258 0 231 4 0 4 4 0 8 0 knotepl 112 39 0 28 1 0 1 1 0 8 0 kqueuepl 144 2 0 0 1 0 1 1 0 8 0 pipelkpl 16 67 0 60 2 1 1 1 0 8 0 pipepl 120 134 0 121 2 1 1 1 0 8 0 fdescpl 432 244 0 231 2 0 2 2 0 8 0 filepl 120 1055 0 1001 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 144 231 0 231 2 1 1 1 0 8 1 processpl 896 258 0 231 4 0 4 4 0 8 0 procpl 624 264 0 231 3 0 3 3 0 8 0 sockpl 400 117 0 100 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 2 2 0 1 0 8 0 mcl2k 2048 5510 0 5482 6 2 4 6 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9603 0 9526 5 0 5 5 0 8 0 mbufpl: pool(0xffffffff825a8878:mbufpl): free list modified: page 0xfffffd805bfea000; item ordinal 0; addr 0xfffffd805bfeaf00 (p 0xfffffd806b521000); offset 0x0=0x0 mbufpl: pool(0xffffffff825a8878:mbufpl): page inconsistency: page 0xfffffd805bfea000; item ordinal 1; addr 0x263aaf bufpl 280 3695 0 161 253 0 253 253 0 8 0 anonpl 16 21554 0 19885 15 2 13 13 0 107 6 amapchunkpl 152 794 0 732 5 0 5 5 0 158 2 amappl16 192 376 0 332 3 0 3 3 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 2 0 1 2 1 1 1 0 8 0 amappl13 168 20 0 18 2 1 1 1 0 8 0 amappl12 160 7 0 5 2 1 1 1 0 8 0 amappl11 152 61 0 49 1 0 1 1 0 8 0 amappl10 144 11 0 8 1 0 1 1 0 8 0 amappl9 136 218 0 215 1 0 1 1 0 8 0 amappl8 128 236 0 228 1 0 1 1 0 8 0 amappl7 120 111 0 100 1 0 1 1 0 8 0 amappl6 112 21 0 19 2 1 1 1 0 8 0 amappl5 104 192 0 182 1 0 1 1 0 8 0 amappl4 96 449 0 422 1 0 1 1 0 8 0 amappl3 88 112 0 106 1 0 1 1 0 8 0 amappl2 80 930 0 874 4 1 3 3 0 8 1 amappl1 72 13894 0 13498 28 12 16 20 0 8 8 amappl 80 466 0 440 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 24 244 0 231 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 244 0 231 1 0 1 1 0 8 0 vmmpekpl 168 6125 0 6107 1 0 1 1 0 8 0 vmmpepl 168 30771 0 29884 96 19 77 77 0 357 38 vmsppl 272 243 0 231 1 0 1 1 0 8 0 pdppl 4096 494 0 462 5 0 5 5 0 8 0 pvpl 32 108163 0 104207 119 6 113 113 0 265 81 pmappl 200 243 0 231 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 125 0 7 4 0 4 4 0 8 0