uvm_fault(0xfffffd806bc0a000, 0xf2e611, 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(0xfffffd806bc0a000, 0xf2e611, 0, 1) -> e pool_do_put(ffffffff82571728,fffffd805e051200) at pool_do_put+0x12e sys/kern/subr_pool.c:844 end trace frame: 0xffff80001f63c6f0, count: 0 ddb> trace pool_do_put(ffffffff82571728,fffffd805e051200) at pool_do_put+0x12e sys/kern/subr_pool.c:844 pool_put(ffffffff82571728,fffffd805e051200) at pool_put+0x4b sys/kern/subr_pool.c:802 m_free(fffffd805e051200) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff8000009c5b00,800100,ffff8000009c5b40,0) at rt_ifa_del+0x436 sys/net/route.c:1201 in6_unlink_ifa(ffff8000009c5b00,ffff800000a01000) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000a01000,ffff80001f63cc50,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff80001f63cc50,ffff800000a01000) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd8060f25498,8080691a,ffff80001f63cc50,ffff8000ffff3160) at ifioctl+0xe60 sys/net/if.c:2291 sys_ioctl(ffff8000ffff3160,ffff80001f63cd68,ffff80001f63cdb0) at sys_ioctl+0x5b9 syscall(ffff80001f63ce30) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x42275247ff0, count: -11 ddb> show registers rdi 0xffffffff81779605 pool_do_put+0x125 rsi 0x15a rbp 0xffff80001f63c6a0 rbx 0xf2e609 acpi_pdirpa+0xf1a471 rdx 0x15b rcx 0xffff80001d419000 rax 0xffff80001d419000 r8 0x4 r9 0x5 r10 0xa310084f5f352b05 r11 0x4dc30476d7170f76 r12 0xfffffd805e051200 r13 0xc517948584f2e609 r14 0xffffffff82571728 mbpool r15 0xfffffd806c3c48c0 rip 0xffffffff8177960e pool_do_put+0x12e cs 0x8 rflags 0x10292 __ALIGN_SIZE+0xf292 rsp 0xffff80001f63c5f0 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=159904 stat=onproc flags process=0 proc=4000000 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff2ee8,0xffffffff82557028 process=0xffff8000ffff6378 user=0xffff80001f637000, vmspace=0xfffffd806bc0a000 estcpu=2, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 14997 142303 33468 0 2 0 syz-executor.0 *14997 159904 33468 0 7 0x4000000 syz-executor.0 33642 286835 10379 0 2 0 syz-executor.1 33642 173057 10379 0 3 0x4000080 netio syz-executor.1 33642 332134 10379 0 3 0x4000080 fsleep syz-executor.1 10379 50686 42325 0 3 0x82 nanosleep syz-executor.1 33468 338483 42325 0 3 0x82 nanosleep syz-executor.0 42325 260355 11322 0 3 0x82 thrsleep syz-fuzzer 42325 94809 11322 0 3 0x4000082 nanosleep syz-fuzzer 42325 51134 11322 0 3 0x4000082 kqread syz-fuzzer 42325 28036 11322 0 3 0x4000082 thrsleep syz-fuzzer 42325 152183 11322 0 2 0x4000002 syz-fuzzer 42325 188903 11322 0 3 0x4000082 thrsleep syz-fuzzer 42325 320162 11322 0 3 0x4000082 thrsleep syz-fuzzer 11322 430603 98892 0 3 0x10008a pause ksh 98892 294125 3931 0 3 0x92 select sshd 18031 31203 1 0 3 0x100083 ttyin getty 3931 502193 1 0 3 0x80 select sshd 18141 56811 47853 73 3 0x100090 kqread syslogd 47853 396204 1 0 3 0x100082 netio syslogd 87460 13444 1 77 3 0x100090 poll dhclient 50370 345866 1 0 3 0x80 poll dhclient 51059 105893 0 0 2 0x14200 zerothread 86241 82965 0 0 3 0x14200 aiodoned aiodoned 99629 17640 0 0 3 0x14200 syncer update 57224 239226 0 0 3 0x14200 cleaner cleaner 81906 494421 0 0 3 0x14200 reaper reaper 39155 498347 0 0 3 0x14200 pgdaemon pagedaemon 50146 66272 0 0 3 0x14200 bored crynlk 58313 361194 0 0 3 0x14200 bored crypto 97558 506614 0 0 3 0x40014200 acpi0 acpi0 9378 428061 0 0 3 0x14200 bored softnet 67105 459712 0 0 3 0x14200 bored systqmp 95838 522108 0 0 3 0x14200 bored systq 50735 238190 0 0 3 0x40014200 bored softclock 61646 312344 0 0 3 0x40014200 idle0 32873 27539 0 0 3 0x14200 bored smr 1 26510 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 9456 6326K 6582K 78643K 10609 0 pcb 13 8K 8K 78643K 41 0 rtable 104 3K 4K 78643K 212 0 ifaddr 46 11K 11K 78643K 53 0 counters 19 16K 16K 78643K 19 0 ioctlops 0 0K 2K 78643K 15 0 iov 0 0K 12K 78643K 8 0 mount 1 1K 1K 78643K 1 0 vnodes 1216 76K 77K 78643K 1246 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 12 0K 1K 78643K 18 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 6 17K 25K 78643K 69 0 sigio 0 0K 0K 78643K 4 0 proc 48 38K 63K 78643K 362 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 36 2K 2K 78643K 44 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 36 159K 159K 78643K 36 0 exec 0 0K 1K 78643K 185 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 114 22K 22K 78643K 1030 0 UVM aobj 19 2K 2K 78643K 19 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 12 0 NDP 6 0K 0K 78643K 12 0 temp 74 3021K 3085K 78643K 4496 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 6 0 0 1 0 1 1 0 8 0 rtpcb 80 21 0 19 1 0 1 1 0 8 0 rtentry 112 49 0 7 2 0 2 2 0 8 0 unpcb 120 59 0 51 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 127 0 127 1 0 1 1 0 8 1 tcpcb 544 22 0 18 1 0 1 1 0 8 0 inpcb 280 145 0 135 2 0 2 2 0 8 0 nd6 48 5 0 2 1 0 1 1 0 8 0 ppxss 1128 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 237 0 39 14 0 14 14 0 8 0 art_table 32 238 0 39 2 0 2 2 0 8 0 art_node 16 48 0 9 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 14 0 4 1 0 1 1 0 8 0 shmpl 112 17 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1489 0 89 46 0 46 46 0 8 0 ffsino 240 1489 0 89 83 0 83 83 0 8 0 nchpl 144 1787 0 175 60 0 60 60 0 8 0 uvmvnodes 72 1547 0 0 29 0 29 29 0 8 0 vnodes 208 1547 0 0 82 0 82 82 0 8 0 namei 1024 4368 0 4368 1 0 1 1 0 8 1 scxspl 192 4908 0 4908 1 0 1 1 0 8 1 plimitpl 152 16 0 9 1 0 1 1 0 8 0 sigapl 432 240 0 226 2 0 2 2 0 8 0 futexpl 56 1277 0 1276 1 0 1 1 0 8 0 knotepl 112 61 0 42 1 0 1 1 0 8 0 kqueuepl 104 10 0 8 1 0 1 1 0 8 0 pipepl 128 168 0 149 2 0 2 2 0 8 1 fdescpl 424 241 0 226 2 0 2 2 0 8 0 filepl 120 1402 0 1297 4 0 4 4 0 8 0 lockfpl 104 34 0 33 1 0 1 1 0 8 0 lockfspl 48 13 0 12 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 17 0 7 1 0 1 1 0 8 0 ucredpl 96 80 0 73 1 0 1 1 0 8 0 zombiepl 144 226 0 226 1 0 1 1 0 8 1 processpl 872 255 0 226 4 0 4 4 0 8 0 procpl 632 306 0 268 4 0 4 4 0 8 0 sockpl 384 225 0 205 4 0 4 4 0 8 1 mcl64k 65536 5 0 5 1 0 1 1 0 8 1 mcl12k 12288 2 0 2 1 0 1 1 0 8 1 mcl8k 8192 1 0 1 1 0 1 1 0 8 1 mcl4k 4096 16 0 16 2 1 1 1 0 8 1 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 68339 0 68293 17 4 13 13 0 8 6 mtagpl 80 6 0 2 2 1 1 1 0 8 0 mbufpl 256 108464 0 108364 12 2 10 10 0 8 0 mbufpl: pool(0xffffffff82571728:mbufpl): free list modified: page 0xfffffd805e051000; item ordinal 7; addr 0xfffffd805e051300 (p 0xfffffd806c3c4000); offset 0x0=0x0 mbufpl: pool(0xffffffff82571728:mbufpl): page inconsistency: page 0xfffffd805e051000; item ordinal 8; addr 0xf2e609 bufpl 280 6299 0 1326 356 0 356 356 0 8 0 anonpl 16 43012 0 24691 76 2 74 74 0 107 0 amapchunkpl 152 1253 0 1097 8 0 8 8 0 158 2 amappl16 192 1221 0 210 51 0 51 51 0 8 0 amappl15 184 50 0 46 1 0 1 1 0 8 0 amappl14 176 56 0 50 1 0 1 1 0 8 0 amappl12 160 3 0 3 1 1 0 1 0 8 0 amappl11 152 51 0 40 1 0 1 1 0 8 0 amappl10 144 10 0 7 1 0 1 1 0 8 0 amappl9 136 504 0 499 1 0 1 1 0 8 0 amappl8 128 138 0 108 2 0 2 2 0 8 1 amappl7 120 90 0 80 1 0 1 1 0 8 0 amappl6 112 56 0 51 1 0 1 1 0 8 0 amappl5 104 287 0 275 1 0 1 1 0 8 0 amappl4 96 450 0 422 1 0 1 1 0 8 0 amappl3 88 121 0 112 1 0 1 1 0 8 0 amappl2 80 1144 0 1066 3 1 2 3 0 8 0 amappl1 72 14171 0 13725 27 14 13 20 0 8 4 amappl 80 558 0 512 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 18 0 0 1 0 1 1 0 8 0 uaddrrnd 24 241 0 226 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 241 0 226 1 0 1 1 0 8 0 vmmpekpl 168 5841 0 5816 2 0 2 2 0 8 0 vmmpepl 168 37199 0 34973 138 10 128 128 0 357 31 vmsppl 272 240 0 226 2 0 2 2 0 8 1 pdppl 4096 488 0 452 6 0 6 6 0 8 1 pvpl 32 133648 0 112251 173 0 173 173 0 265 0 pmappl 200 240 0 226 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 146 0 9 4 0 4 4 0 8 0