uvm_fault(0xffffffff827b2b20, 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(0xffffffff827b2b20, 0xfffffd0000000010, 0, 1) -> e pool_cache_get(ffffffff828dde60) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828dde60) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 end trace frame: 0xffff800020da9030, count: 0 ddb{0}> trace pool_cache_get(ffffffff828dde60) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828dde60) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828dde60,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd8079046700,1b80,20c,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd8079046700,1b80,20c,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000ada760) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_input(ffff800020da95c8,ffff800020da95d4,6,2) at tcp_input+0x2356 ip_deliver(ffff800020da95c8,ffff800020da95d4,6,2) at ip_deliver+0x353 sys/netinet/ip_input.c:668 ip_ours(ffff800020da95c8,ffff800020da95d4,ffff800020d88c30,0) at ip_ours+0x412 ip_input_if(ffff800020da95c8,ffff800020da95d4,4,0,ffff80000017b2a8) at ip_input_if+0x6ce ipv4_input(ffff80000017b2a8,fffffd806f377300) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017b2a8,fffffd806f377300,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017b2a8,ffff800020da96f8) at if_input_process+0x10b if_ih_input sys/net/if.c:902 [inline] if_input_process(ffff80000017b2a8,ffff800020da96f8) at if_input_process+0x10b sys/net/if.c:936 ifiq_process(ffff80000017b6a8) at ifiq_process+0x80 sys/net/ifq.c:768 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 0xffff800020da8f70 rbx 0x58925331c7532219 rdx 0x20c rcx 0 rax 0 r8 0xffffffff815aeafa tcp_output+0xbea r9 0x5 r10 0x3 r11 0xd55d3be3262016a6 r12 0xffffffff828dde60 mbpool r13 0 r14 0xfffffd0000000000 r15 0xfffffd807f009d80 rip 0xffffffff82057cb1 pool_cache_get+0x1b1 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020da8f10 ss 0x10 pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{0}> show proc PROC (softnet) pid=439386 stat=onproc flags process=14000 proc=200 pri=32, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020d88ea0,0xffff800020d88760 process=0xffff800020d8aba0 user=0xffff800020da4000, vmspace=0xffffffff828d7210 estcpu=1, cpticks=2, pctcpu=1.17 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 46417 212324 87005 0 7 0 syz-executor.1 46417 249435 87005 0 3 0x4000080 kqread syz-executor.1 99790 380496 0 0 3 0x14200 bored sosplice 87005 397449 15212 0 3 0x82 nanosleep syz-executor.1 53418 34628 15212 0 3 0x2 biowait syz-executor.0 15212 329019 57169 0 3 0x82 kqread syz-fuzzer 15212 393271 57169 0 3 0x4000082 nanosleep syz-fuzzer 15212 192484 57169 0 3 0x4000082 thrsleep syz-fuzzer 15212 141909 57169 0 3 0x4000082 thrsleep syz-fuzzer 15212 267291 57169 0 3 0x4000082 thrsleep syz-fuzzer 15212 490686 57169 0 3 0x4000082 nanosleep syz-fuzzer 15212 205534 57169 0 3 0x4000082 thrsleep syz-fuzzer 15212 63392 57169 0 3 0x4000082 thrsleep syz-fuzzer 15212 113319 57169 0 3 0x4000082 thrsleep syz-fuzzer 15212 342908 57169 0 3 0x4000082 thrsleep syz-fuzzer 57169 396816 56127 0 3 0x10008a pause ksh 56127 222952 7884 0 3 0x92 select sshd 4498 289630 1 0 3 0x100083 ttyin getty 7884 239318 1 0 3 0x80 select sshd 61397 418504 4797 74 3 0x100092 bpf pflogd 4797 346804 1 0 3 0x80 netio pflogd 7520 129590 86437 73 3 0x100090 kqread syslogd 86437 217805 1 0 3 0x100082 netio syslogd 55708 104329 1 77 3 0x100090 poll dhclient 99986 126341 1 0 3 0x80 poll dhclient 99810 423716 0 0 3 0x14200 bored smr 90848 457471 0 0 3 0x14200 pgzero zerothread 45562 252919 0 0 3 0x14200 aiodoned aiodoned 90589 467704 0 0 3 0x14200 syncer update 56590 140087 0 0 3 0x14200 cleaner cleaner 75759 411471 0 0 3 0x14200 reaper reaper 48239 13339 0 0 3 0x14200 pgdaemon pagedaemon 74057 473410 0 0 3 0x14200 bored crynlk 7761 70553 0 0 3 0x14200 bored crypto 29877 316498 0 0 3 0x40014200 acpi0 acpi0 91404 88242 0 0 3 0x40014200 idle1 *79357 439386 0 0 7 0x14200 softnet 44756 158338 0 0 3 0x14200 bored systqmp 88256 233510 0 0 3 0x14200 bored systq 40121 318468 0 0 3 0x40014200 bored softclock 7940 373799 0 0 3 0x40014200 idle0 1 468706 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 53418 (syz-executor.0) thread 0xffff800020ddd868 (34628) exclusive rrwlock inode r = 0 (0xfffffd8064c7cc50) #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 ufs_ihashins+0x45 sys/ufs/ufs/ufs_ihash.c:140 #4 ffs_vget+0x13e sys/ufs/ffs/ffs_vfsops.c:1358 #5 ffs_inode_alloc+0x1e2 sys/ufs/ffs/ffs_alloc.c:394 #6 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #7 VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:450 #8 domkdirat+0x121 sys/kern/vfs_syscalls.c:3051 #9 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #9 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #10 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806b203098) #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 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419 #6 namei+0x63c sys/kern/vfs_lookup.c:249 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3036 #8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #9 Xsyscall+0x128 Process 79357 (softnet) thread 0xffff800020d88c30 (439386) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828dfd48) #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_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:768 #16 taskq_thread+0xec sys/kern/kern_task.c:437 #17 proc_trampoline+0x1c exclusive rwlock netlock r = 0 (0xffffffff827a4e48) #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:768 #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 9496 6407K 6667K 78643K 10725 0 pcb 13 8K 8K 78643K 35 0 rtable 108 4K 4K 78643K 252 0 ifaddr 63 13K 13K 78643K 77 0 counters 43 33K 34K 78643K 45 0 ioctlops 0 0K 4K 78643K 1487 0 iov 0 0K 16K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1221 77K 77K 78643K 1267 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 18 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 137 0 proc 62 63K 83K 78643K 454 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 2 0 in_multi 49 2K 2K 78643K 86 0 ether_multi 1 0K 0K 78643K 2 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 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 129 39K 55K 78643K 1389 0 UVM aobj 5 2K 2K 78643K 5 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 10 0 NDP 9 0K 0K 78643K 18 0 temp 82 3857K 3921K 78643K 3720 0 kqueue 3 4K 8K 78643K 13 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 8 0 1 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 21 0 19 1 0 1 1 0 8 0 rtentry 112 62 0 18 2 0 2 2 0 8 0 unpcb 120 59 0 49 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 159 0 159 1 1 0 1 0 8 0 tcpcb 544 32 0 28 1 0 1 1 0 8 0 inpcb 296 153 0 146 2 0 2 2 0 8 1 nd6 48 14 0 9 1 0 1 1 0 8 0 ppxss 1128 1 0 1 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 1 1 0 1 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 17 0 1 1 0 1 1 0 8 0 pfstkey 112 19 0 3 1 0 1 1 0 8 0 pfstate 328 18 0 2 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 256 222 0 42 13 0 13 13 0 8 0 art_table 32 223 0 42 2 0 2 2 0 8 0 art_node 16 61 0 21 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 2 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 16 0 6 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1586 0 178 89 0 89 89 0 8 0 ffsino 272 1586 0 178 95 0 95 95 0 8 0 nchpl 144 2080 0 471 60 0 60 60 0 8 0 uvmvnodes 72 1663 0 0 31 0 31 31 0 8 0 vnodes 208 1663 0 0 88 0 88 88 0 8 0 namei 1024 5687 0 5686 1 0 1 1 0 8 0 percpumem 16 33 0 1 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 6 0 4 1 0 1 1 0 8 0 scxspl 192 6011 0 6010 8 1 7 7 0 8 6 plimitpl 152 24 0 16 1 0 1 1 0 8 0 sigapl 424 353 0 321 4 0 4 4 0 8 0 futexpl 56 1775 0 1775 1 0 1 1 0 8 1 knotepl 112 74 0 55 1 0 1 1 0 8 0 kqueuepl 144 21 0 18 1 0 1 1 0 8 0 pipepl 304 90 0 80 1 0 1 1 0 8 0 fdescpl 496 337 0 321 3 0 3 3 0 8 0 filepl 152 1871 0 1768 5 0 5 5 0 8 1 lockfpl 104 28 0 27 1 0 1 1 0 8 0 lockfspl 48 10 0 9 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 96 125 0 116 1 0 1 1 0 8 0 zombiepl 144 321 0 321 1 0 1 1 0 8 1 processpl 992 353 0 321 5 0 5 5 0 8 0 procpl 624 600 0 558 4 0 4 4 0 8 0 sosppl 128 3 0 3 1 0 1 1 0 8 1 sockpl 400 233 0 214 3 0 3 3 0 8 1 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 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 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 147 0 0 18 0 18 18 0 8 0 mtagpl 96 14 0 0 1 0 1 1 0 8 0 mbufpl 256 190 0 0 11 0 11 11 0 8 0 bufpl 280 3651 0 133 252 0 252 252 0 8 0 anonpl 16 46731 0 30158 69 1 68 68 0 124 0 amapchunkpl 152 2108 0 1965 20 0 20 20 0 158 12 amappl16 192 1505 0 605 47 0 47 47 0 8 2 amappl15 184 55 0 52 1 0 1 1 0 8 0 amappl14 176 26 0 20 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 3 0 2 2 1 1 1 0 8 0 amappl11 152 53 0 38 1 0 1 1 0 8 0 amappl10 144 76 0 67 1 0 1 1 0 8 0 amappl9 136 387 0 385 1 0 1 1 0 8 0 amappl8 128 369 0 334 2 0 2 2 0 8 0 amappl7 120 124 0 112 1 0 1 1 0 8 0 amappl6 112 27 0 21 1 0 1 1 0 8 0 amappl5 104 237 0 221 1 0 1 1 0 8 0 amappl4 96 492 0 464 1 0 1 1 0 8 0 amappl3 88 107 0 99 1 0 1 1 0 8 0 amappl2 80 1816 0 1743 2 0 2 2 0 8 0 amappl1 72 17528 0 17083 23 10 13 18 0 8 3 amappl 80 860 0 816 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 4 0 0 1 0 1 1 0 8 0 uaddrrnd 24 343 0 325 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 343 0 325 1 0 1 1 0 8 0 vmmpekpl 168 6600 0 6562 2 0 2 2 0 8 0 vmmpepl 168 48572 0 46497 126 7 119 119 0 357 27 vmsppl 368 342 0 325 2 0 2 2 0 8 0 pdppl 4096 693 0 652 6 0 6 6 0 8 0 pvpl 32 160172 0 140467 167 0 167 167 0 265 7 pmappl 232 342 0 325 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 254 0 3 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pool_cache_get(ffffffff828dde60) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828dde60) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828dde60,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd8079046700,1b80,20c,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd8079046700,1b80,20c,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000ada760) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_input(ffff800020da95c8,ffff800020da95d4,6,2) at tcp_input+0x2356 ip_deliver(ffff800020da95c8,ffff800020da95d4,6,2) at ip_deliver+0x353 sys/netinet/ip_input.c:668 ip_ours(ffff800020da95c8,ffff800020da95d4,ffff800020d88c30,0) at ip_ours+0x412 ip_input_if(ffff800020da95c8,ffff800020da95d4,4,0,ffff80000017b2a8) at ip_input_if+0x6ce ipv4_input(ffff80000017b2a8,fffffd806f377300) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017b2a8,fffffd806f377300,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017b2a8,ffff800020da96f8) at if_input_process+0x10b if_ih_input sys/net/if.c:902 [inline] if_input_process(ffff80000017b2a8,ffff800020da96f8) at if_input_process+0x10b sys/net/if.c:936 ifiq_process(ffff80000017b6a8) at ifiq_process+0x80 sys/net/ifq.c:768 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(ffffffff828dfb40) at __mp_lock+0x120 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828dfb40) at __mp_lock+0x120 sys/kern/kern_lock.c:147 pageflttrap(ffff800021ee6d50,1) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 usertrap(ffff800021ee6d50) at usertrap+0x21a sys/arch/amd64/amd64/trap.c:384 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f7ffffd4bb0, count: -7