uvm_fault(0xffffffff8280d460, 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(0xffffffff8280d460, 0xfffffd0000000010, 0, 1) -> e pool_cache_get(ffffffff828d8420) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828d8420) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 end trace frame: 0xffff800020e629c0, count: 0 ddb{0}> trace pool_cache_get(ffffffff828d8420) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828d8420) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828d8420,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd8068640500,0,564,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd8068640500,0,564,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000ada100) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806ead2968,9,fffffd8068640500,0,0,ffff800020e41390) at tcp_usrreq+0xa55 sosend(fffffd806ead2968,0,ffff800020e62e58,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e41390,4,ffff800020e62e58,0,ffff800020e62f40) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e41390,ffff800020e62ef0,ffff800020e62f40) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e62fc0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e62fc0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffb7200, count: -10 ddb{0}> show registers rdi 0 rsi 0x7 rbp 0xffff800020e62900 rbx 0x33f24ae84db71dde rdx 0x564 rcx 0 rax 0 r8 0xffffffff821757aa tcp_output+0xbea r9 0x5 r10 0x3 r11 0xea608e72d0a7f1d9 r12 0xffffffff828d8420 mbpool r13 0 r14 0xfffffd0000000000 r15 0xfffffd807f008d80 rip 0xffffffff81b343b1 pool_cache_get+0x1b1 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff800020e628a0 ss 0x10 pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{0}> show proc PROC (sshd) pid=250361 stat=onproc flags process=12 proc=0 pri=24, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020e404f0,0xffff800020e40290 process=0xffff800020e383f0 user=0xffff800020e5e000, vmspace=0xfffffd806e8f42e8 estcpu=1, cpticks=1, pctcpu=0.1 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 74816 108088 0 0 3 0x14200 acct acct 27836 138175 0 0 3 0x14200 bored sosplice 78759 462469 34469 0 2 0x2 syz-executor.1 1050 377544 34469 0 2 0x2 syz-executor.0 34469 246952 75498 0 3 0x82 nanosleep syz-fuzzer 34469 328448 75498 0 2 0x4000082 syz-fuzzer 34469 93763 75498 0 3 0x4000082 thrsleep syz-fuzzer 34469 266461 75498 0 3 0x4000082 thrsleep syz-fuzzer 34469 116196 75498 0 3 0x4000082 thrsleep syz-fuzzer 34469 165333 75498 0 2 0x4000002 syz-fuzzer 34469 487955 75498 0 3 0x4000082 thrsleep syz-fuzzer 34469 300228 75498 0 3 0x4000082 thrsleep syz-fuzzer 34469 377274 75498 0 3 0x4000082 thrsleep syz-fuzzer 34469 59879 75498 0 3 0x4000082 thrsleep syz-fuzzer 75498 425620 12084 0 3 0x10008a pause ksh *12084 250361 85654 0 7 0x12 sshd 75500 167334 1 0 3 0x100083 ttyin getty 85654 498179 1 0 3 0x80 select sshd 60309 499778 47160 74 3 0x100092 bpf pflogd 47160 16063 1 0 3 0x80 netio pflogd 7131 366426 6842 73 3 0x100090 kqread syslogd 6842 379253 1 0 3 0x100082 netio syslogd 77471 439868 1 77 3 0x100090 poll dhclient 16208 142976 1 0 3 0x80 poll dhclient 31429 379145 0 0 3 0x14200 bored smr 50920 33506 0 0 2 0x14200 zerothread 6965 76584 0 0 3 0x14200 aiodoned aiodoned 21391 433693 0 0 3 0x14200 syncer update 44656 90990 0 0 3 0x14200 cleaner cleaner 7206 194854 0 0 7 0x14200 reaper 12267 491996 0 0 3 0x14200 pgdaemon pagedaemon 32636 229454 0 0 3 0x14200 bored crynlk 91029 153096 0 0 3 0x14200 bored crypto 27934 216966 0 0 3 0x40014200 acpi0 acpi0 61555 204907 0 0 3 0x40014200 idle1 71956 323008 0 0 3 0x14200 bored softnet 43262 227956 0 0 3 0x14200 bored systqmp 40105 485013 0 0 3 0x14200 bored systq 63785 383401 0 0 3 0x40014200 bored softclock 34062 172452 0 0 3 0x40014200 idle0 1 5353 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 12084 (sshd) thread 0xffff800020e41390 (250361) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828e2dd8) #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_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] #6 m_copym+0x174 sys/kern/uipc_mbuf.c:667 #7 tcp_output+0x15ba sys/netinet/tcp_output.c:673 #8 tcp_usrreq+0xa55 #9 sosend+0x671 sys/kern/uipc_socket.c:555 #10 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #11 sys_write+0x83 sys/kern/sys_generic.c:285 #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 exclusive rwlock netlock r = 0 (0xffffffff8272df18) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 solock+0x5a sys/kern/uipc_socket2.c:282 #2 sosend+0x559 sys/kern/uipc_socket.c:543 #3 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #4 sys_write+0x83 sys/kern/sys_generic.c:285 #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 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9501 6406K 6788K 78643K 11000 0 pcb 13 8K 8K 78643K 64 0 rtable 125 9K 10K 78643K 392 0 ifaddr 66 13K 15K 78643K 119 0 counters 43 33K 34K 78643K 53 0 ioctlops 0 0K 4K 78643K 1512 0 iov 0 0K 16K 78643K 31 0 mount 1 1K 1K 78643K 1 0 vnodes 1218 77K 77K 78643K 1354 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 12 0K 0K 78643K 49 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 308 0 proc 60 63K 95K 78643K 453 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 16 0 in_multi 54 2K 3K 78643K 131 0 ether_multi 1 0K 0K 78643K 11 0 mrt 0 0K 0K 78643K 7 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 215 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 147 73K 89K 78643K 1954 0 UVM aobj 13 6K 6K 78643K 14 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 37 0 NDP 10 0K 0K 78643K 29 0 temp 114 3871K 3935K 78643K 9676 0 kqueue 3 4K 8K 78643K 12 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 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 33 0 31 1 0 1 1 0 8 0 rtentry 112 80 0 41 2 0 2 2 0 8 0 unpcb 120 161 0 151 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 12 0 12 1 1 0 1 0 8 0 tcpcb 544 330 0 324 1 0 1 1 0 8 0 inpcb 296 743 0 735 2 0 2 2 0 8 1 rttmr 72 3 0 3 1 0 1 1 0 8 1 nd6 48 21 0 16 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 ppxss 1128 1 0 1 1 0 1 1 0 8 1 pffrag 232 1 0 1 1 0 1 1 0 482 1 pffrnode 88 1 0 1 1 0 1 1 0 8 1 pffrent 40 45 0 45 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 25 0 15 1 0 1 1 0 8 0 pfstitem 24 35 0 3 1 0 1 1 0 8 0 pfstkey 112 35 0 3 1 0 1 1 0 8 0 pfstate 328 35 0 3 3 0 3 3 0 8 0 pfrule 1360 33 0 18 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 410 0 208 13 0 13 13 0 8 0 art_table 32 411 0 208 2 0 2 2 0 8 0 art_node 16 77 0 41 1 0 1 1 0 8 0 sysvmsgpl 40 51 0 17 1 0 1 1 0 8 0 semapl 112 47 0 37 1 0 1 1 0 8 0 shmpl 112 12 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1799 0 396 88 0 88 88 0 8 0 ffsino 272 1799 0 396 94 0 94 94 0 8 0 nchpl 144 2396 0 784 60 0 60 60 0 8 0 uvmvnodes 72 1931 0 0 36 0 36 36 0 8 0 vnodes 208 1931 0 0 102 0 102 102 0 8 0 namei 1024 6454 0 6454 1 0 1 1 0 8 1 percpumem 16 37 0 5 1 0 1 1 0 8 0 vcpupl 1984 4 0 0 1 0 1 1 0 8 0 vmpool 560 6 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 19 0 3 1 0 1 1 0 8 0 scxspl 192 7104 0 7104 8 4 4 7 0 8 4 plimitpl 152 33 0 25 1 0 1 1 0 8 0 sigapl 424 525 0 493 4 0 4 4 0 8 0 futexpl 56 4741 0 4741 1 0 1 1 0 8 1 knotepl 112 71 0 52 1 0 1 1 0 8 0 kqueuepl 144 37 0 35 1 0 1 1 0 8 0 pipepl 304 113 0 103 2 0 2 2 0 8 1 fdescpl 496 508 0 493 3 0 3 3 0 8 0 filepl 152 3037 0 2937 5 0 5 5 0 8 1 lockfpl 104 63 0 62 1 0 1 1 0 8 0 lockfspl 48 22 0 21 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 303 0 293 1 0 1 1 0 8 0 zombiepl 144 493 0 492 1 0 1 1 0 8 0 processpl 984 525 0 492 5 0 5 5 0 8 0 procpl 624 1155 0 1113 4 0 4 4 0 8 0 sosppl 128 6 0 6 1 1 0 1 0 8 0 sockpl 400 940 0 921 4 0 4 4 0 8 2 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 171 0 0 21 0 21 21 0 8 0 mtagpl 96 22 0 0 1 0 1 1 0 8 0 mbufpl 256 314 0 0 20 0 20 20 0 8 0 bufpl 280 3879 0 137 268 0 268 268 0 8 0 anonpl 16 57692 0 40961 70 1 69 69 0 124 1 amapchunkpl 152 3057 0 2882 21 3 18 21 0 158 10 amappl16 192 2059 0 1174 46 0 46 46 0 8 1 amappl15 184 136 0 134 2 1 1 1 0 8 0 amappl14 176 167 0 161 1 0 1 1 0 8 0 amappl13 168 31 0 27 1 0 1 1 0 8 0 amappl12 160 13 0 10 1 0 1 1 0 8 0 amappl11 152 51 0 36 1 0 1 1 0 8 0 amappl10 144 148 0 143 1 0 1 1 0 8 0 amappl9 136 400 0 398 1 0 1 1 0 8 0 amappl8 128 352 0 314 2 0 2 2 0 8 0 amappl7 120 252 0 238 1 0 1 1 0 8 0 amappl6 112 22 0 19 1 0 1 1 0 8 0 amappl5 104 404 0 388 1 0 1 1 0 8 0 amappl4 96 487 0 457 1 0 1 1 0 8 0 amappl3 88 255 0 250 1 0 1 1 0 8 0 amappl2 80 3125 0 3050 2 0 2 2 0 8 0 amappl1 72 21048 0 20588 23 13 10 18 0 8 0 amappl 80 1414 0 1360 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 13 0 1 1 0 1 1 0 8 0 uaddrrnd 24 514 0 495 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 514 0 495 1 0 1 1 0 8 0 vmmpekpl 168 8049 0 8014 2 0 2 2 0 8 0 vmmpepl 168 68341 0 66285 116 9 107 113 0 357 11 vmsppl 368 513 0 494 2 0 2 2 0 8 0 pdppl 4096 1035 0 992 6 0 6 6 0 8 0 pvpl 32 194877 0 175419 169 0 169 169 0 265 9 pmappl 232 513 0 494 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 266 0 3 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pool_cache_get(ffffffff828d8420) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828d8420) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828d8420,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd8068640500,0,564,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd8068640500,0,564,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000ada100) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806ead2968,9,fffffd8068640500,0,0,ffff800020e41390) at tcp_usrreq+0xa55 sosend(fffffd806ead2968,0,ffff800020e62e58,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e41390,4,ffff800020e62e58,0,ffff800020e62f40) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e41390,ffff800020e62ef0,ffff800020e62f40) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e62fc0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e62fc0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffb7200, count: -10 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(ffffffff828e2bd0) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828e2bd0) at __mp_lock+0x127 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800020dcf300,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd806e8f4a18) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd806e8f4a18) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020e09358) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297 reaper(ffff800020d889c0) at reaper+0x189 sys/kern/kern_exit.c:456 end trace frame: 0x0, count: -9