uvm_fault(0xffffffff827bd960, 0xfffffd0000000010, 0, 1) -> e kernel: page fault trap, code=0 Stopped at pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff827bd960, 0xfffffd0000000010, 0, 1) -> e pool_cache_get(ffffffff828d9a80) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828d9a80) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 end trace frame: 0xffff800023f969f0, count: 0 ddb{0}> trace pool_cache_get(ffffffff828d9a80) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828d9a80) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828d9a80,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(2,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 rtm_ifchg(ffff8000006aa000) at rtm_ifchg+0x47 rtm_msg1 sys/net/rtsock.c:1534 [inline] rtm_ifchg(ffff8000006aa000) at rtm_ifchg+0x47 sys/net/rtsock.c:1703 if_up(ffff8000006aa000) at if_up+0x137 if_linkstate sys/net/if.c:1569 [inline] if_up(ffff8000006aa000) at if_up+0x137 sys/net/if.c:1538 loioctl(ffff8000006aa000,8020690c,ffff800000b4c100) at loioctl+0xb9 sys/net/if_loop.c:285 in6_ifinit(ffff8000006aa000,ffff800000b4c100,1) at in6_ifinit+0x120 sys/netinet6/in6.c:980 in6_update_ifa(ffff8000006aa000,ffff800023f96f30,0) at in6_update_ifa+0x13ab sys/netinet6/in6.c:723 in6_ioctl_change_ifaddr(8080691a,ffff800023f96f30,ffff8000006aa000) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd80799da650,8080691a,ffff800023f96f30,ffff800020e0a608) at ifioctl+0xe70 sys/net/if.c:2180 soo_ioctl(fffffd8068603850,8080691a,ffff800023f96f30,ffff800020e0a608) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e0a608,ffff800023f97048,ffff800023f97090) at sys_ioctl+0x4a5 syscall(ffff800023f97110) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f97110) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x83eb4c221d0, count: -14 ddb{0}> show registers rdi 0xffffffff81a7ec2a pool_cache_get+0x6a rsi 0x1e354 acpi_pdirpa+0xa1bc rbp 0xffff800023f96930 rbx 0xb023712f74867cf6 rdx 0x1e355 acpi_pdirpa+0xa1bd rcx 0xffff80002310a000 rax 0xffff80002310a000 r8 0xffffffff81288a7d in6_ifattach+0x3d r9 0x1 r10 0x4 r11 0x9e2b7e5ec99509a r12 0xffffffff828d9a80 mbpool r13 0 r14 0xfffffd0000000000 r15 0xfffffd807f007d80 rip 0xffffffff81a7ed71 pool_cache_get+0x1b1 cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff800023f968d0 ss 0x10 pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{0}> show proc PROC (syz-executor.1) pid=511590 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e0a878,0xffffffff82937810 process=0xffff800020df1b30 user=0xffff800023f92000, vmspace=0xfffffd8064152460 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 55706 35150 82894 0 2 0 syz-executor.1 *55706 511590 82894 0 7 0x4000000 syz-executor.1 82894 239445 89925 0 3 0x82 nanosleep syz-executor.1 49601 228304 0 0 3 0x14200 acct acct 60644 310159 0 0 3 0x14200 bored sosplice 12311 311475 0 0 3 0x14280 nfsidl nfsio 96016 5880 0 0 3 0x14280 nfsidl nfsio 49334 282457 0 0 3 0x14280 nfsidl nfsio 65552 346332 0 0 3 0x14280 nfsidl nfsio 39841 141257 0 0 3 0x14280 nfsidl nfsio 15330 499246 0 0 3 0x14280 nfsidl nfsio 54572 398511 0 0 3 0x14280 nfsidl nfsio 19040 239174 0 0 3 0x14280 nfsidl nfsio 62113 479580 0 0 3 0x14280 nfsidl nfsio 72956 22530 0 0 3 0x14280 nfsidl nfsio 23538 367481 0 0 3 0x14280 nfsidl nfsio 51442 62726 0 0 3 0x14280 nfsidl nfsio 90184 319876 0 0 3 0x14280 nfsidl nfsio 53757 333780 0 0 3 0x14280 nfsidl nfsio 48420 143503 0 0 3 0x14280 nfsidl nfsio 70682 287524 0 0 3 0x14280 nfsidl nfsio 65512 274785 0 0 3 0x14280 nfsidl nfsio 22593 511273 0 0 3 0x14280 nfsidl nfsio 27863 101783 0 0 3 0x14280 nfsidl nfsio 41169 342031 0 0 3 0x14280 nfsidl nfsio 10908 396663 89925 0 2 0x2 syz-executor.0 89925 421438 10487 0 3 0x82 thrsleep syz-fuzzer 89925 478324 10487 0 3 0x4000082 thrsleep syz-fuzzer 89925 22859 10487 0 3 0x4000082 thrsleep syz-fuzzer 89925 179503 10487 0 3 0x4000082 thrsleep syz-fuzzer 89925 132486 10487 0 3 0x4000082 thrsleep syz-fuzzer 89925 164438 10487 0 3 0x4000082 thrsleep syz-fuzzer 89925 271138 10487 0 3 0x4000082 thrsleep syz-fuzzer 89925 361307 10487 0 3 0x4000082 kqread syz-fuzzer 89925 518759 10487 0 3 0x4000082 thrsleep syz-fuzzer 89925 84839 10487 0 3 0x4000082 thrsleep syz-fuzzer 10487 41638 62547 0 3 0x10008a pause ksh 62547 357851 44521 0 3 0x92 select sshd 31958 468875 1 0 3 0x100083 ttyin getty 44521 270299 1 0 3 0x80 select sshd 58917 339344 45323 74 3 0x100092 bpf pflogd 45323 228498 1 0 3 0x80 netio pflogd 77901 523420 44965 73 3 0x100090 kqread syslogd 44965 244252 1 0 3 0x100082 netio syslogd 23526 87724 1 77 2 0x100090 dhclient 47478 199423 1 0 3 0x80 poll dhclient 10804 421323 0 0 3 0x14200 bored smr 52283 70339 0 0 2 0x14200 zerothread 51555 499371 0 0 3 0x14200 aiodoned aiodoned 95421 171136 0 0 3 0x14200 syncer update 97560 271221 0 0 3 0x14200 cleaner cleaner 67318 236905 0 0 3 0x14200 reaper reaper 8208 293918 0 0 3 0x14200 pgdaemon pagedaemon 18049 507487 0 0 3 0x14200 bored crynlk 43295 208479 0 0 3 0x14200 bored crypto 44256 406626 0 0 3 0x40014200 acpi0 acpi0 75431 387189 0 0 7 0x40014200 idle1 82087 290944 0 0 3 0x14200 bored softnet 31760 449400 0 0 3 0x14200 bored systqmp 33300 20761 0 0 3 0x14200 bored systq 75257 142088 0 0 3 0x40014200 bored softclock 47590 106475 0 0 3 0x40014200 idle0 1 493282 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 55706 (syz-executor.1) thread 0xffff800020e0a608 (511590) exclusive rwlock netlock r = 0 (0xffffffff8273b8d8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 in6_ioctl_change_ifaddr+0xab #2 ifioctl+0xe70 sys/net/if.c:2180 #3 soo_ioctl+0x27c sys/kern/sys_socket.c:138 #4 sys_ioctl+0x4a5 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828fd198) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 soo_ioctl+0x26a sys/kern/sys_socket.c:138 #2 sys_ioctl+0x4a5 #3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #4 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9531 6421K 6800K 78643K 11440 0 pcb 13 8K 8K 78643K 91 0 rtable 109 15K 15K 78643K 554 0 ifaddr 89 17K 17K 78643K 216 0 counters 43 33K 34K 78643K 75 0 ioctlops 0 0K 4K 78643K 1580 0 iov 0 0K 16K 78643K 69 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1487 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 8 0 VM map 2 1K 1K 78643K 2 0 sem 10 1K 1K 78643K 23 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 731 0 sigio 0 0K 0K 78643K 8 0 proc 63 63K 95K 78643K 505 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 2096 0 in_multi 51 3K 3K 78643K 191 0 ether_multi 1 0K 0K 78643K 9 0 mrt 0 0K 0K 78643K 3 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 275 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 141 88K 90K 78643K 2880 0 UVM aobj 35 3K 4K 78643K 43 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 51 0 NDP 15 0K 0K 78643K 49 0 temp 133 3866K 3934K 78643K 20059 0 kqueue 3 4K 10K 78643K 23 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 9 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 53 0 51 1 0 1 1 0 8 0 rtentry 112 107 0 71 2 0 2 2 0 8 0 unpcb 120 421 0 411 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 80 0 80 2 2 0 1 0 8 0 tcpcb 544 1038 0 1034 2 1 1 2 0 8 0 inpcb 296 1487 0 1475 5 3 2 2 0 8 1 nd6 48 34 0 30 1 0 1 1 0 8 0 ppxss 1136 1 0 1 1 1 0 1 0 8 0 pffrag 232 5 0 5 3 3 0 1 0 482 0 pffrnode 88 5 0 5 3 3 0 1 0 8 0 pffrent 40 96 0 96 3 3 0 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 37 0 30 4 3 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 264 2 0 0 1 0 1 1 0 8 0 pfstitem 24 35 0 33 1 0 1 1 0 8 0 pfstkey 112 35 0 33 1 0 1 1 0 8 0 pfstate 328 35 0 33 3 1 2 3 0 8 1 pfrule 1360 39 0 27 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 564 0 386 16 2 14 14 0 8 1 art_table 32 566 0 386 2 0 2 2 0 8 0 art_node 16 106 0 76 1 0 1 1 0 8 0 sysvmsgpl 40 27 0 14 1 0 1 1 0 8 0 semupl 112 9 0 9 1 1 0 1 0 8 0 semapl 112 13 0 5 1 0 1 1 0 8 0 shmpl 112 40 0 8 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2298 0 886 89 0 89 89 0 8 0 ffsino 272 2298 0 886 97 2 95 95 0 8 0 nchpl 144 3525 0 1927 60 0 60 60 0 8 0 uvmvnodes 72 2540 0 0 47 0 47 47 0 8 0 vnodes 208 2540 0 0 134 0 134 134 0 8 0 namei 1024 9418 0 9418 6 5 1 1 0 8 1 percpumem 16 48 0 16 1 0 1 1 0 8 0 vcpupl 1984 12 0 0 2 0 2 2 0 8 0 vmpool 560 18 0 6 1 0 1 1 0 8 0 pfiaddrpl 120 10 0 6 3 2 1 1 0 8 0 scxspl 192 10697 0 10697 13 12 1 7 0 8 1 plimitpl 152 40 0 32 1 0 1 1 0 8 0 sigapl 424 965 0 912 7 0 7 7 0 8 1 futexpl 56 14215 0 14215 4 3 1 1 0 8 1 knotepl 112 105 0 86 1 0 1 1 0 8 0 kqueuepl 144 73 0 70 1 0 1 1 0 8 0 pipepl 304 157 0 147 4 2 2 2 0 8 1 fdescpl 496 928 0 912 3 0 3 3 0 8 0 filepl 152 5187 0 5081 6 1 5 5 0 8 0 lockfpl 104 90 0 89 1 0 1 1 0 8 0 lockfspl 48 37 0 36 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 23 0 12 1 0 1 1 0 8 0 ucredpl 96 404 0 395 1 0 1 1 0 8 0 zombiepl 144 912 0 912 3 2 1 1 0 8 1 processpl 992 965 0 912 8 1 7 7 0 8 0 procpl 624 2037 0 1974 9 3 6 6 0 8 1 sosppl 128 10 0 10 3 3 0 1 0 8 0 sockpl 400 1962 0 1938 6 3 3 4 0 8 0 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 156 0 0 19 0 19 19 0 8 1 mtagpl 96 54 0 0 2 0 2 2 0 8 0 mbufpl 256 376 0 0 20 0 20 20 0 8 0 bufpl 280 4592 0 134 319 0 319 319 0 8 0 anonpl 16 115065 0 98669 93 11 82 85 0 124 11 amapchunkpl 152 4905 0 4719 25 12 13 20 0 158 5 amappl16 192 4861 0 3920 72 12 60 60 0 8 11 amappl15 184 9 0 9 2 2 0 1 0 8 0 amappl14 176 364 0 360 1 0 1 1 0 8 0 amappl13 168 79 0 74 2 1 1 1 0 8 0 amappl12 160 50 0 43 1 0 1 1 0 8 0 amappl11 152 54 0 39 1 0 1 1 0 8 0 amappl10 144 21 0 13 1 0 1 1 0 8 0 amappl9 136 327 0 324 1 0 1 1 0 8 0 amappl8 128 706 0 665 2 0 2 2 0 8 0 amappl7 120 125 0 113 1 0 1 1 0 8 0 amappl6 112 24 0 20 2 1 1 1 0 8 0 amappl5 104 1556 0 1538 1 0 1 1 0 8 0 amappl4 96 513 0 481 1 0 1 1 0 8 0 amappl3 88 460 0 455 1 0 1 1 0 8 0 amappl2 80 6443 0 6366 2 0 2 2 0 8 0 amappl1 72 33195 0 32745 24 14 10 18 0 8 0 amappl 80 2306 0 2253 2 0 2 2 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 42 0 8 1 0 1 1 0 8 0 uaddrrnd 24 946 0 918 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 946 0 918 1 0 1 1 0 8 0 vmmpekpl 168 9724 0 9685 2 0 2 2 0 8 0 vmmpepl 168 125181 0 123018 186 38 148 148 0 357 46 vmsppl 368 945 0 918 3 0 3 3 0 8 0 pdppl 4096 1899 0 1848 8 1 7 7 0 8 0 pvpl 32 336389 0 316640 222 24 198 201 0 265 30 pmappl 232 945 0 918 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 288 0 20 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pool_cache_get(ffffffff828d9a80) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828d9a80) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828d9a80,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(2,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 rtm_ifchg(ffff8000006aa000) at rtm_ifchg+0x47 rtm_msg1 sys/net/rtsock.c:1534 [inline] rtm_ifchg(ffff8000006aa000) at rtm_ifchg+0x47 sys/net/rtsock.c:1703 if_up(ffff8000006aa000) at if_up+0x137 if_linkstate sys/net/if.c:1569 [inline] if_up(ffff8000006aa000) at if_up+0x137 sys/net/if.c:1538 loioctl(ffff8000006aa000,8020690c,ffff800000b4c100) at loioctl+0xb9 sys/net/if_loop.c:285 in6_ifinit(ffff8000006aa000,ffff800000b4c100,1) at in6_ifinit+0x120 sys/netinet6/in6.c:980 in6_update_ifa(ffff8000006aa000,ffff800023f96f30,0) at in6_update_ifa+0x13ab sys/netinet6/in6.c:723 in6_ioctl_change_ifaddr(8080691a,ffff800023f96f30,ffff8000006aa000) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd80799da650,8080691a,ffff800023f96f30,ffff800020e0a608) at ifioctl+0xe70 sys/net/if.c:2180 soo_ioctl(fffffd8068603850,8080691a,ffff800023f96f30,ffff800020e0a608) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e0a608,ffff800023f97048,ffff800023f97090) at sys_ioctl+0x4a5 syscall(ffff800023f97110) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f97110) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x83eb4c221d0, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d70ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 acpicpu_idle() at acpicpu_idle+0x331 sys/dev/acpi/acpicpu.c:1187 sched_idle(ffff800020d70ff0) at sched_idle+0x3f7 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5