uvm_fault(0xffffffff82887150, 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(0xffffffff82887150, 0xfffffd0000000010, 0, 1) -> e pool_cache_get(ffffffff828cba90) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828cba90) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 end trace frame: 0xffff8000230fee00, count: 0 ddb{0}> trace pool_cache_get(ffffffff828cba90) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828cba90) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828cba90,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250 sbappendaddr(fffffd806f68a320,fffffd806f68a3a8,ffffffff824ffe40,fffffd806db56a00,0) at sbappendaddr+0x2e9 sys/kern/uipc_socket2.c:804 rtm_sendup(fffffd806f68a320,fffffd806db56a00,0) at rtm_sendup+0xef sys/net/rtsock.c:594 route_input(fffffd806db56a00,0,2) at route_input+0x489 sys/net/rtsock.c:572 rtm_send(fffffd8075df8858,1,0,0) at rtm_send+0x18d sys/net/rtsock.c:1659 rt_ifa_add(ffff800000b12400,240404,ffff800000b12440,0) at rt_ifa_add+0x2b9 sys/net/route.c:1141 rt_ifa_addlocal(ffff800000b12400) at rt_ifa_addlocal+0x16d sys/net/route.c:1238 in_ifinit(ffff800000ac5000,ffff800000b12400,ffff8000230ff5e0,0) at in_ifinit+0x1cf sys/netinet/in.c:688 in_ioctl_change_ifaddr(8040691a,ffff8000230ff5d0,ffff800000ac5000,1) at in_ioctl_change_ifaddr+0x68c sys/netinet/in.c:519 in_ioctl(8040691a,ffff8000230ff5d0,ffff800000ac5000,1) at in_ioctl+0x2fb sys/netinet/in.c:246 ifioctl(fffffd8065af5c98,8040691a,ffff8000230ff5d0,ffff800020e374f8) at ifioctl+0xe70 sys/net/if.c:2285 soo_ioctl(fffffd806781aed8,8040691a,ffff8000230ff5d0,ffff800020e374f8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e374f8,ffff8000230ff6e8,ffff8000230ff730) at sys_ioctl+0x4a5 syscall(ffff8000230ff7b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230ff7b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa34f712b130, count: -17 ddb{0}> show registers rdi 0xffffffff8102587a pool_cache_get+0x6a rsi 0x125c __ALIGN_SIZE+0x25c rbp 0xffff8000230fed40 rbx 0x46e276df07f976ee rdx 0x125d __ALIGN_SIZE+0x25d rcx 0xffff800020ed6000 rax 0xffff800020ed6000 r8 0xffffffff813c5325 sbappendaddr+0x1c5 r9 0x5 r10 0x2 r11 0xa1a4ff43dc99a908 r12 0xffffffff828cba90 mbpool r13 0 r14 0xfffffd0000000000 r15 0xfffffd807f009f00 rip 0xffffffff810259c1 pool_cache_get+0x1b1 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff8000230fece0 ss 0x10 pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{0}> show proc PROC (syz-executor.0) pid=453486 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e379d8,0xffffffff828ed3c0 process=0xffff800020eb5388 user=0xffff8000230fa000, vmspace=0xfffffd807f000730 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 75603 144414 12520 0 2 0 syz-executor.0 *75603 453486 12520 0 7 0x4000000 syz-executor.0 65810 496459 0 0 3 0x14200 bored sosplice 84530 502119 62750 0 3 0x82 nanosleep syz-executor.1 12520 317307 62750 0 3 0x82 nanosleep syz-executor.0 62750 20604 21795 0 3 0x82 nanosleep syz-fuzzer 62750 391929 21795 0 3 0x4000082 nanosleep syz-fuzzer 62750 104260 21795 0 3 0x4000082 thrsleep syz-fuzzer 62750 187081 21795 0 3 0x4000082 thrsleep syz-fuzzer 62750 330731 21795 0 3 0x4000082 thrsleep syz-fuzzer 62750 146781 21795 0 3 0x4000082 kqread syz-fuzzer 62750 82606 21795 0 3 0x4000082 thrsleep syz-fuzzer 62750 29978 21795 0 3 0x4000082 thrsleep syz-fuzzer 62750 512903 21795 0 3 0x4000082 thrsleep syz-fuzzer 62750 317626 21795 0 3 0x4000082 thrsleep syz-fuzzer 21795 454973 83175 0 3 0x10008a pause ksh 83175 300468 1008 0 3 0x92 select sshd 73630 311860 1 0 3 0x100083 ttyin getty 1008 419956 1 0 3 0x80 select sshd 20305 90239 13015 74 3 0x100092 bpf pflogd 13015 363505 1 0 3 0x80 netio pflogd 55064 421005 18722 73 3 0x100090 kqread syslogd 18722 109626 1 0 3 0x100082 netio syslogd 95962 111369 1 77 7 0x100090 dhclient 96108 408975 1 0 3 0x80 poll dhclient 63998 349606 0 0 3 0x14200 bored smr 7199 98264 0 0 3 0x14200 pgzero zerothread 30851 401678 0 0 3 0x14200 aiodoned aiodoned 96994 121407 0 0 3 0x14200 syncer update 26757 483584 0 0 3 0x14200 cleaner cleaner 39868 13223 0 0 3 0x14200 reaper reaper 975 523783 0 0 3 0x14200 pgdaemon pagedaemon 99762 361248 0 0 3 0x14200 bored crynlk 41885 292119 0 0 3 0x14200 bored crypto 78063 466966 0 0 3 0x40014200 acpi0 acpi0 88797 521014 0 0 3 0x40014200 idle1 48619 437589 0 0 3 0x14200 bored softnet 11231 210640 0 0 3 0x14200 bored systqmp 53685 183173 0 0 3 0x14200 bored systq 12702 361544 0 0 3 0x40014200 bored softclock 62800 197617 0 0 3 0x40014200 idle0 1 130357 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 75603 (syz-executor.0) thread 0xffff800020e374f8 (453486) exclusive rwlock netlock r = 0 (0xffffffff82711af8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 in_ioctl_change_ifaddr+0x91 #2 in_ioctl+0x2fb sys/netinet/in.c:246 #3 ifioctl+0xe70 sys/net/if.c:2285 #4 soo_ioctl+0x27c sys/kern/sys_socket.c:138 #5 sys_ioctl+0x4a5 #6 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #6 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #7 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 2 (0xffffffff828eb410) #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 9486 6402K 6658K 78643K 10663 0 pcb 13 8K 8K 78643K 23 0 rtable 111 3K 3K 78643K 219 0 ifaddr 52 12K 12K 78643K 63 0 counters 43 33K 34K 78643K 45 0 ioctlops 0 0K 4K 78643K 1481 0 iov 0 0K 2K 78643K 2 0 mount 1 1K 1K 78643K 1 0 vnodes 1221 77K 77K 78643K 1285 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 4 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 20 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 132 0 proc 61 63K 95K 78643K 445 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 54 0 in_multi 44 2K 2K 78643K 52 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 61 281K 281K 78643K 61 0 exec 0 0K 1K 78643K 208 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 110 22K 38K 78643K 1344 0 UVM aobj 5 2K 2K 78643K 9 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 4 0 NDP 7 0K 0K 78643K 15 0 temp 78 3853K 3917K 78643K 2253 0 kqueue 3 4K 8K 78643K 6 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 7 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 83 0 81 1 0 1 1 0 8 0 rtentry 112 50 0 3 2 0 2 2 0 8 0 unpcb 120 107 0 97 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 853 0 853 1 1 0 1 0 8 0 tcpcb 544 25 0 18 1 0 1 1 0 8 0 inpcb 296 122 0 112 2 0 2 2 0 8 1 nd6 48 9 0 2 1 0 1 1 0 8 0 pffrag 232 2 0 2 1 1 0 1 0 482 0 pffrnode 88 2 0 2 1 1 0 1 0 8 0 pffrent 40 47 0 47 1 1 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 pfstitem 24 18 0 4 1 0 1 1 0 8 0 pfstkey 112 18 0 4 1 0 1 1 0 8 0 pfstate 328 18 0 4 2 0 2 2 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 194 0 0 13 0 13 13 0 8 0 art_table 32 195 0 0 2 0 2 2 0 8 0 art_node 16 49 0 7 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 2 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 16 0 6 1 0 1 1 0 8 0 shmpl 112 6 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1572 0 166 88 0 88 88 0 8 0 ffsino 272 1572 0 166 95 1 94 94 0 8 0 nchpl 144 1935 0 325 60 0 60 60 0 8 0 uvmvnodes 72 1637 0 0 30 0 30 30 0 8 0 vnodes 208 1637 0 0 87 0 87 87 0 8 0 namei 1024 5403 0 5403 2 1 1 1 0 8 1 percpumem 16 33 0 1 1 0 1 1 0 8 0 vmpool 560 1 0 1 1 0 1 1 0 8 1 scxspl 192 5592 0 5592 7 6 1 5 0 8 1 plimitpl 152 22 0 14 1 0 1 1 0 8 0 sigapl 424 348 0 316 4 0 4 4 0 8 0 futexpl 56 1520 0 1520 1 0 1 1 0 8 1 knotepl 112 64 0 45 1 0 1 1 0 8 0 kqueuepl 144 10 0 7 1 0 1 1 0 8 0 pipepl 304 94 0 84 2 1 1 2 0 8 0 fdescpl 496 332 0 316 3 0 3 3 0 8 0 filepl 152 2017 0 1916 7 2 5 5 0 8 1 lockfpl 104 144 0 143 1 0 1 1 0 8 0 lockfspl 48 75 0 74 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 446 0 437 1 0 1 1 0 8 0 zombiepl 144 316 0 315 2 1 1 1 0 8 0 processpl 992 348 0 315 6 1 5 5 0 8 0 procpl 624 565 0 522 4 0 4 4 0 8 0 sockpl 400 312 0 290 5 2 3 4 0 8 0 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 233 0 0 29 0 29 29 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 286 0 0 18 0 18 18 0 8 0 bufpl 280 3464 0 133 238 0 238 238 0 8 0 anonpl 16 46880 0 30051 69 1 68 68 0 124 0 amapchunkpl 152 1560 0 1412 8 1 7 8 0 158 0 amappl16 192 1429 0 519 46 0 46 46 0 8 0 amappl15 184 4 0 3 2 1 1 1 0 8 0 amappl14 176 35 0 30 1 0 1 1 0 8 0 amappl13 168 73 0 68 1 0 1 1 0 8 0 amappl12 160 5 0 3 2 1 1 1 0 8 0 amappl11 152 59 0 43 1 0 1 1 0 8 0 amappl10 144 28 0 23 1 0 1 1 0 8 0 amappl9 136 443 0 441 1 0 1 1 0 8 0 amappl8 128 387 0 363 1 0 1 1 0 8 0 amappl7 120 123 0 110 1 0 1 1 0 8 0 amappl6 112 20 0 19 1 0 1 1 0 8 0 amappl5 104 227 0 211 1 0 1 1 0 8 0 amappl4 96 543 0 508 1 0 1 1 0 8 0 amappl3 88 107 0 101 1 0 1 1 0 8 0 amappl2 80 1665 0 1595 2 0 2 2 0 8 0 amappl1 72 18352 0 17908 23 13 10 18 0 8 0 amappl 80 824 0 780 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 8 0 4 1 0 1 1 0 8 0 uaddrrnd 24 333 0 317 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 333 0 317 1 0 1 1 0 8 0 vmmpekpl 168 6582 0 6542 2 0 2 2 0 8 0 vmmpepl 168 49037 0 46964 119 17 102 113 0 357 9 vmsppl 368 332 0 317 2 0 2 2 0 8 0 pdppl 4096 673 0 634 7 1 6 6 0 8 1 pvpl 32 161463 0 141461 167 0 167 167 0 265 4 pmappl 232 332 0 317 3 1 2 2 0 8 1 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 276 0 8 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pool_cache_get(ffffffff828cba90) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828cba90) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828cba90,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250 sbappendaddr(fffffd806f68a320,fffffd806f68a3a8,ffffffff824ffe40,fffffd806db56a00,0) at sbappendaddr+0x2e9 sys/kern/uipc_socket2.c:804 rtm_sendup(fffffd806f68a320,fffffd806db56a00,0) at rtm_sendup+0xef sys/net/rtsock.c:594 route_input(fffffd806db56a00,0,2) at route_input+0x489 sys/net/rtsock.c:572 rtm_send(fffffd8075df8858,1,0,0) at rtm_send+0x18d sys/net/rtsock.c:1659 rt_ifa_add(ffff800000b12400,240404,ffff800000b12440,0) at rt_ifa_add+0x2b9 sys/net/route.c:1141 rt_ifa_addlocal(ffff800000b12400) at rt_ifa_addlocal+0x16d sys/net/route.c:1238 in_ifinit(ffff800000ac5000,ffff800000b12400,ffff8000230ff5e0,0) at in_ifinit+0x1cf sys/netinet/in.c:688 in_ioctl_change_ifaddr(8040691a,ffff8000230ff5d0,ffff800000ac5000,1) at in_ioctl_change_ifaddr+0x68c sys/netinet/in.c:519 in_ioctl(8040691a,ffff8000230ff5d0,ffff800000ac5000,1) at in_ioctl+0x2fb sys/netinet/in.c:246 ifioctl(fffffd8065af5c98,8040691a,ffff8000230ff5d0,ffff800020e374f8) at ifioctl+0xe70 sys/net/if.c:2285 soo_ioctl(fffffd806781aed8,8040691a,ffff8000230ff5d0,ffff800020e374f8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e374f8,ffff8000230ff6e8,ffff8000230ff730) at sys_ioctl+0x4a5 syscall(ffff8000230ff7b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230ff7b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa34f712b130, count: -17 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 __mp_lock(ffffffff828eb208) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828eb208) at __mp_lock+0x12e sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff828eb208,2) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff800020e17ce0,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020e17ce0,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020e17ce0,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff828ccf0c,118,ffffffff824619df,41dd55) at tsleep+0x1cc sys/kern/kern_synch.c:155 doppoll(ffff800020ddcc38,7f7ffffe3c30,3,ffff800020e17e78,0,ffff800020e17f30) at doppoll+0x57e sys/kern/sys_generic.c:968 sys_poll(ffff800020ddcc38,ffff800020e17ee0,ffff800020e17f30) at sys_poll+0xa6 syscall(ffff800020e17fb0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e17fb0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe3c10, count: -13