login: uvm_fault(0xffffffff828ad310, 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(0xffffffff828ad310, 0xfffffd0000000010, 0, 1) -> e pool_cache_get(ffffffff8291c0d0) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff8291c0d0) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 end trace frame: 0xffff800020da9220, count: 0 ddb{0}> trace pool_cache_get(ffffffff8291c0d0) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff8291c0d0) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff8291c0d0,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(2,2) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 tcp_output(ffff800000ada980) at tcp_output+0x14e6 tcp_input(ffff800020da9758,ffff800020da9764,6,2) at tcp_input+0x2356 ip_deliver(ffff800020da9758,ffff800020da9764,6,2) at ip_deliver+0x353 sys/netinet/ip_input.c:668 ip_ours(ffff800020da9758,ffff800020da9764,ffff800020d88270,0) at ip_ours+0x412 ip_input_if(ffff800020da9758,ffff800020da9764,4,0,ffff80000017b2a8) at ip_input_if+0x6ce ipv4_input(ffff80000017b2a8,fffffd8064439b00) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017b2a8,fffffd8064439b00,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017b2a8,ffff800020da9888) at if_input_process+0x10b if_ih_input sys/net/if.c:902 [inline] if_input_process(ffff80000017b2a8,ffff800020da9888) at if_input_process+0x10b sys/net/if.c:936 ifiq_process(ffff80000017b6a0) at ifiq_process+0x80 sys/net/ifq.c:646 taskq_thread(ffff80000002c000) at taskq_thread+0xec sys/kern/kern_task.c:437 end trace frame: 0x0, count: -13 ddb{0}> show registers rdi 0 rsi 0x7 rbp 0xffff800020da9160 rbx 0x80d96fbcc678e2c4 rdx 0xffff800020d88270 rcx 0 rax 0 r8 0xffffffff8202476a tcp_output+0xbea r9 0x5 r10 0x3 r11 0xc1324fe893d033db r12 0xffffffff8291c0d0 mbpool r13 0 r14 0xfffffd0000000000 r15 0xfffffd807f009f00 rip 0xffffffff8145eb31 pool_cache_get+0x1b1 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff800020da9100 ss 0x10 pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{0}> show proc PROC (softnet) pid=274831 stat=onproc flags process=14000 proc=200 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020d88750,0xffff800020d88010 process=0xffff800020d8b338 user=0xffff800020da4000, vmspace=0xffffffff8291b2b0 estcpu=0, cpticks=1, pctcpu=0.89 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 36475 246727 65298 0 7 0 syz-executor.0 15091 385841 22375 0 3 0x2 biowait syz-executor.1 65298 400075 22375 0 3 0x82 nanosleep syz-executor.0 22375 77260 69898 0 3 0x82 thrsleep syz-fuzzer 22375 464123 69898 0 3 0x4000082 nanosleep syz-fuzzer 22375 365303 69898 0 3 0x4000082 thrsleep syz-fuzzer 22375 46553 69898 0 3 0x4000082 thrsleep syz-fuzzer 22375 71107 69898 0 3 0x4000082 kqread syz-fuzzer 22375 56596 69898 0 3 0x4000082 thrsleep syz-fuzzer 22375 442554 69898 0 3 0x4000082 thrsleep syz-fuzzer 22375 142113 69898 0 3 0x4000082 thrsleep syz-fuzzer 22375 404970 69898 0 3 0x4000082 thrsleep syz-fuzzer 22375 262549 69898 0 3 0x4000082 nanosleep syz-fuzzer 69898 243007 4046 0 3 0x10008a pause ksh 4046 104655 27245 0 3 0x52 netlock sshd 97050 134690 1 0 3 0x100083 ttyin getty 27245 431923 1 0 3 0x80 select sshd 16406 347894 67458 74 3 0x100092 bpf pflogd 67458 194017 1 0 3 0x80 netio pflogd 91750 145680 53222 73 3 0x100090 kqread syslogd 53222 464613 1 0 3 0x100082 netio syslogd 92827 468970 1 77 3 0x100090 poll dhclient 25522 203434 1 0 3 0x80 poll dhclient 88916 177008 0 0 3 0x14200 bored smr 75964 243980 0 0 2 0x14200 zerothread 74429 152201 0 0 3 0x14200 aiodoned aiodoned 33535 415650 0 0 3 0x14200 syncer update 47033 429715 0 0 3 0x14200 cleaner cleaner 22679 342363 0 0 3 0x14200 reaper reaper 17809 158377 0 0 3 0x14200 pgdaemon pagedaemon 70927 71452 0 0 3 0x14200 bored crynlk 78623 389809 0 0 3 0x14200 bored crypto 56009 44352 0 0 3 0x40014200 acpi0 acpi0 23719 109013 0 0 3 0x40014200 idle1 *71526 274831 0 0 7 0x14200 softnet 12902 337567 0 0 3 0x14200 bored systqmp 74801 65444 0 0 3 0x14200 bored systq 87807 58079 0 0 3 0x40014200 bored softclock 34816 324332 0 0 3 0x40014200 idle0 1 214995 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 15091 (syz-executor.1) thread 0xffff800020e47398 (385841) exclusive rrwlock inode r = 0 (0xfffffd80673edd60) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vget+0x1c8 sys/kern/vfs_subr.c:671 #6 ufs_ihashget+0x141 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x74 sys/ufs/ffs/ffs_vfsops.c:1329 #8 ufs_lookup+0x14b7 sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 #10 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568 #11 namei+0x63c sys/kern/vfs_lookup.c:249 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80673edf80) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vget+0x1c8 sys/kern/vfs_subr.c:671 #6 cache_lookup+0x2bb sys/kern/vfs_cache.c:224 #7 ufs_lookup+0x1bc sys/ufs/ufs/ufs_lookup.c:162 #8 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 #9 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568 #10 namei+0x63c sys/kern/vfs_lookup.c:249 #11 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #12 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #12 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #13 Xsyscall+0x128 Process 71526 (softnet) thread 0xffff800020d88270 (274831) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82923b00) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 #2 kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 #3 alltraps_kern_meltdown+0x7b #4 pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] #4 pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 #5 pool_get+0x91 sys/kern/subr_pool.c:572 #6 m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 #7 tcp_output+0x14e6 #8 tcp_input+0x2356 #9 ip_deliver+0x353 sys/netinet/ip_input.c:668 #10 ip_ours+0x412 #11 ip_input_if+0x6ce #12 ipv4_input+0x48 sys/netinet/ip_input.c:215 #13 ether_input+0x345 sys/net/if_ethersubr.c:461 #14 if_input_process+0x10b if_ih_input sys/net/if.c:902 [inline] #14 if_input_process+0x10b sys/net/if.c:936 #15 ifiq_process+0x80 sys/net/ifq.c:646 #16 taskq_thread+0xec sys/kern/kern_task.c:437 #17 proc_trampoline+0x1c exclusive rwlock netlock r = 0 (0xffffffff8270b778) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 if_input_process+0x85 sys/net/if.c:935 #2 ifiq_process+0x80 sys/net/ifq.c:646 #3 taskq_thread+0xec sys/kern/kern_task.c:437 #4 proc_trampoline+0x1c shared rwlock softnet r = 0 (0xffff80000002c070) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 taskq_thread+0xdf sys/kern/kern_task.c:436 #2 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9504 6409K 6792K 78643K 10880 0 pcb 13 8K 8K 78643K 35 0 rtable 81 5K 5K 78643K 327 0 ifaddr 60 13K 13K 78643K 112 0 counters 41 33K 34K 78643K 57 0 ioctlops 0 0K 4K 78643K 1495 0 iov 0 0K 16K 78643K 19 0 mount 1 1K 1K 78643K 1 0 vnodes 1215 76K 77K 78643K 1301 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 46 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 258 0 proc 62 63K 95K 78643K 464 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 14 0 in_multi 41 2K 3K 78643K 82 0 ether_multi 1 0K 0K 78643K 8 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 37 175K 175K 78643K 37 0 exec 0 0K 1K 78643K 210 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 124 55K 55K 78643K 1670 0 UVM aobj 8 2K 2K 78643K 8 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 18 0 NDP 9 0K 0K 78643K 24 0 temp 85 3859K 3939K 78643K 3206 0 kqueue 3 4K 8K 78643K 10 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 6 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 29 0 27 1 0 1 1 0 8 0 rtentry 112 60 0 34 2 0 2 2 0 8 0 unpcb 120 256 0 246 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 125 0 125 1 1 0 1 0 8 0 tcpcb 544 71 0 67 1 0 1 1 0 8 0 inpcb 296 463 0 456 2 0 2 2 0 8 1 nd6 48 9 0 6 1 0 1 1 0 8 0 pkpcb 40 6 0 6 1 0 1 1 0 8 1 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 2 0 2 1 0 1 1 0 482 1 pffrnode 88 2 0 2 1 0 1 1 0 8 1 pffrent 40 47 0 47 1 0 1 1 0 8 1 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 6 0 2 1 0 1 1 0 8 0 pfstitem 24 68 0 0 1 0 1 1 0 8 0 pfstkey 112 72 0 4 2 0 2 2 0 8 0 pfstate 328 71 0 3 6 0 6 6 0 8 0 pfrule 1360 23 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 341 0 188 12 0 12 12 0 8 1 art_table 32 342 0 188 2 0 2 2 0 8 0 art_node 16 59 0 38 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 1 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 42 0 32 1 0 1 1 0 8 0 shmpl 112 6 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1711 0 307 89 0 89 89 0 8 0 ffsino 272 1711 0 307 95 0 95 95 0 8 0 nchpl 144 2253 0 641 60 0 60 60 0 8 0 uvmvnodes 72 1811 0 0 33 0 33 33 0 8 0 vnodes 208 1811 0 0 96 0 96 96 0 8 0 namei 1024 5827 0 5827 1 0 1 1 0 8 1 percpumem 16 39 0 8 1 0 1 1 0 8 0 vcpupl 1984 4 0 0 1 0 1 1 0 8 0 vmpool 560 4 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 4 0 0 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 6687 0 6686 8 2 6 7 0 8 5 plimitpl 152 32 0 24 1 0 1 1 0 8 0 sigapl 424 473 0 442 4 0 4 4 0 8 0 futexpl 56 2764 0 2764 1 0 1 1 0 8 1 knotepl 112 69 0 50 1 0 1 1 0 8 0 kqueuepl 144 30 0 28 1 0 1 1 0 8 0 pipepl 304 94 0 84 2 1 1 2 0 8 0 fdescpl 496 458 0 442 3 0 3 3 0 8 0 filepl 152 2420 0 2319 5 0 5 5 0 8 1 lockfpl 104 25 0 24 1 0 1 1 0 8 0 lockfspl 48 11 0 10 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 96 167 0 158 1 0 1 1 0 8 0 zombiepl 144 442 0 442 1 0 1 1 0 8 1 processpl 984 473 0 442 5 0 5 5 0 8 0 procpl 624 901 0 861 4 0 4 4 0 8 0 sockpl 400 756 0 737 5 1 4 4 0 8 2 mcl64k 65536 6 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 14 0 0 2 0 2 2 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 166 0 0 20 0 20 20 0 8 0 mtagpl 96 17 0 0 1 0 1 1 0 8 0 mbufpl 256 286 0 0 18 0 18 18 0 8 0 bufpl 280 3801 0 133 262 0 262 262 0 8 0 anonpl 16 57719 0 41148 85 1 84 84 0 124 17 amapchunkpl 152 2150 0 1988 9 1 8 9 0 158 1 amappl16 192 2198 0 1315 57 4 53 57 0 8 8 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 28 0 23 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 16 0 13 2 1 1 1 0 8 0 amappl11 152 152 0 136 1 0 1 1 0 8 0 amappl10 144 18 0 14 1 0 1 1 0 8 0 amappl9 136 517 0 513 1 0 1 1 0 8 0 amappl8 128 342 0 313 2 0 2 2 0 8 0 amappl7 120 118 0 106 1 0 1 1 0 8 0 amappl6 112 127 0 120 1 0 1 1 0 8 0 amappl5 104 356 0 338 1 0 1 1 0 8 0 amappl4 96 489 0 456 1 0 1 1 0 8 0 amappl3 88 103 0 98 1 0 1 1 0 8 0 amappl2 80 2731 0 2661 2 0 2 2 0 8 0 amappl1 72 20036 0 19605 23 13 10 18 0 8 0 amappl 80 1152 0 1105 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 7 0 0 1 0 1 1 0 8 0 uaddrrnd 24 462 0 442 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 462 0 442 1 0 1 1 0 8 0 vmmpekpl 168 7346 0 7312 2 0 2 2 0 8 0 vmmpepl 168 62208 0 60177 118 7 111 115 0 357 21 vmsppl 368 461 0 442 2 0 2 2 0 8 0 pdppl 4096 931 0 888 6 0 6 6 0 8 0 pvpl 32 184883 0 165199 197 0 197 197 0 265 36 pmappl 232 461 0 442 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 265 0 4 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pool_cache_get(ffffffff8291c0d0) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff8291c0d0) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff8291c0d0,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(2,2) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 tcp_output(ffff800000ada980) at tcp_output+0x14e6 tcp_input(ffff800020da9758,ffff800020da9764,6,2) at tcp_input+0x2356 ip_deliver(ffff800020da9758,ffff800020da9764,6,2) at ip_deliver+0x353 sys/netinet/ip_input.c:668 ip_ours(ffff800020da9758,ffff800020da9764,ffff800020d88270,0) at ip_ours+0x412 ip_input_if(ffff800020da9758,ffff800020da9764,4,0,ffff80000017b2a8) at ip_input_if+0x6ce ipv4_input(ffff80000017b2a8,fffffd8064439b00) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017b2a8,fffffd8064439b00,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017b2a8,ffff800020da9888) at if_input_process+0x10b if_ih_input sys/net/if.c:902 [inline] if_input_process(ffff80000017b2a8,ffff800020da9888) at if_input_process+0x10b sys/net/if.c:936 ifiq_process(ffff80000017b6a0) at ifiq_process+0x80 sys/net/ifq.c:646 taskq_thread(ffff80000002c000) at taskq_thread+0xec sys/kern/kern_task.c:437 end trace frame: 0x0, count: -13 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(ffffffff829238f8) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829238f8) at __mp_lock+0x127 sys/kern/kern_lock.c:147 pageflttrap(ffff800020ed5d20,1) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 usertrap(ffff800020ed5d20) at usertrap+0x21a sys/arch/amd64/amd64/trap.c:384 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f7ffffc56b0, count: -7