*cpu1: uvm_fault(0xfffffd806ed6a8a8, 0x8, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xd6 end of kernel end trace frame: 0x7f7ffffbd520, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff8000212c3ce0 rbx 0 rdx 0 rcx 0 rax 0x2a r8 0xffff8000212c3c10 r9 0 r10 0x4097b84a675fe09d r11 0x69b5061834e620e7 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff8248c4e6 proc_trampoline+0xd6 cs 0x8 rflags 0x246 rsp 0xffff8000212c3c60 ss 0 proc_trampoline+0xd6: movl $0,%gs:0x540 ddb{0}> show proc PROC (syz-executor.5) pid=287613 stat=onproc flags process=0 proc=0 pri=79, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff800026136dc8,0xffffffff82cdac60 process=0xffff800024701938 user=0xffff8000212be000, vmspace=0xfffffd8069e218b0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *97679 287613 63118 0 7 0 syz-executor.5 11650 73902 19741 0 3 0x82 nanoslp syz-executor.7 63955 270204 19741 0 3 0x82 piperd syz-executor.1 57923 461943 19741 0 7 0x3 syz-executor.3 44549 282448 1 0 3 0x100083 ttyin getty 63118 462493 19741 0 3 0x3 kernel: protection fault trap, code=0 Faulted in DDB; continuing... ddb{0}> show all locks ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10250 6632K 7469K 78643K 18793 0 pcb 13 14K 16K 78643K 729 0 rtable 204 15K 15K 78643K 1117 0 ifaddr 78 25K 27K 78643K 440 0 sysctl 3 1K 1K 78643K 3 0 counters 58 35K 36K 78643K 388 0 ioctlops 0 0K 4K 78643K 1980 0 iov 0 0K 28K 78643K 669 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1557 97K 98K 78643K 5333 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 24 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 846 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 12 41K 93K 78643K 4688 0 sigio 0 0K 0K 78643K 376 0 proc 70 91K 115K 78643K 1227 0 subproc 117 7K 7K 78643K 338 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 438 0 in_multi 89 6K 7K 78643K 386 0 ether_multi 1 0K 0K 78643K 12 0 mrt 1 0K 0K 78643K 9 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 253 1129K 1129K 78643K 253 0 exec 0 0K 1K 78643K 1213 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 351 114K 119K 78643K 34179 0 UVM aobj 131 4K 4K 78643K 136 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 268 0 NDP 15 0K 1K 78643K 147 0 temp 137 5774K 5850K 78643K 46141 0 kqueue 12 18K 30K 78643K 1465 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 322 0 319 6 5 1 3 0 8 0 rtentry 112 383 0 293 4 0 4 4 0 8 0 unpcb 144 9508 0 9493 37 30 7 10 0 8 6 syncache 296 11 0 11 4 4 0 1 0 8 0 tcpqe 32 112 8 112 1 1 0 1 0 8 0 tcpcb 776 1387 0 1381 47 45 2 8 0 8 1 arp 120 61 0 44 1 0 1 1 0 8 0 inpcb 368 6684 0 6675 66 59 7 13 0 8 6 nd6 48 84 0 63 1 0 1 1 0 8 0 kcovpl 48 26 0 17 1 0 1 1 0 8 0 mppekey 1024 3 0 3 1 1 0 1 0 8 0 ppxss 1256 119 0 119 6 6 0 1 0 8 0 pppxif 1456 84 0 84 6 6 0 1 0 8 0 pffrag 232 8 0 8 3 3 0 1 0 482 0 pffrnode 88 8 0 8 3 3 0 1 0 8 0 pffrent 40 24 0 24 3 3 0 1 0 8 0 pfosfp 40 1434 0 1009 5 0 5 5 0 8 0 pfosfpen 112 1434 0 717 21 0 21 21 0 8 0 pfanchor 1280 6 0 0 1 0 1 1 0 8 0 pfstitem 24 146 0 133 1 0 1 1 0 8 0 pfstkey 128 146 0 133 2 0 2 2 0 8 0 pfstate 384 146 0 133 7 4 3 5 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 3 0 3 1 1 0 1 0 8 0 art_heap8 4096 4 0 3 4 3 1 2 0 8 0 art_heap4 256 1604 0 1226 40 16 24 30 0 8 0 art_table 32 1608 0 1229 4 0 4 4 0 8 0 art_node 16 382 0 304 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 5 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 844 0 834 1 0 1 1 0 8 0 shmpl 112 133 0 5 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 7868 0 6413 92 0 92 92 0 8 0 ffsino 272 7868 0 6413 98 0 98 98 0 8 0 nchpl 144 14132 0 12489 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 56013 0 56013 5 4 1 2 0 8 1 percpumem 16 207 0 165 1 0 1 1 0 8 0 vmpool 696 7 0 7 2 2 0 1 0 8 0 kstatmem 264 182 0 156 3 1 2 3 0 8 0 scxspl 216 38182 0 38182 17 14 3 8 0 8 3 plimitpl 152 918 0 901 1 0 1 1 0 8 0 sigapl 424 4982 0 4915 10 2 8 8 0 8 0 futexpl 64 46767 0 46767 2 1 1 1 0 8 1 knotepl 120 506 0 0 12 0 12 12 0 8 0 kqueuepl 216 2026 0 2018 13 12 1 5 0 8 0 pipepl 320 1214 0 1185 27 24 3 8 0 8 0 fdescpl 496 4942 0 4917 7 2 5 5 0 8 0 filepl 152 45482 0 45229 60 43 17 21 0 8 6 lockfpl 104 1839 0 1837 5 4 1 2 0 8 0 lockfspl 48 625 0 623 1 0 1 1 0 8 0 sessionpl 144 43 0 25 1 0 1 1 0 8 0 pgrppl 48 160 0 142 1 0 1 1 0 8 0 ucredpl 104 5310 0 5298 1 0 1 1 0 8 0 zombiepl 144 4919 0 4915 2 1 1 1 0 8 0 processpl 1072 4982 0 4915 5 0 5 5 0 8 0 procpl 696 13907 0 13824 17 7 10 11 0 8 0 srpgc 96 24 0 24 5 4 1 1 0 8 1 sosppl 168 43 0 43 10 10 0 1 0 8 0 sockpl 488 16525 0 16498 259 247 12 33 0 8 8 sockpl: pool(0xffffffff82c01970:sockpl): free list modified: page 0xfffffd806d84d000; item ordinal 1; addr 0xfffffd806d84d201 (p 0xfffffd806d84d000); offset 0x0=0xce00a01ac353584d pool(sockpl): free list modified: page 0xfffffd806d84d000; item ordinal 1; addr 0xfffffd806d84d201 (p 0xfffffd806d84d000); offset 0x0=0xaddeafbe sockpl: pool(0xffffffff82c01970:sockpl): page inconsistency: page 0xfffffd806d84d000; item ordinal 2; addr 0xc2309ef6561ba0f9 mcl64k 65536 23 0 0 3 1 2 3 0 8 0 mcl16k 16384 20 0 0 3 1 2 3 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 15 0 0 2 0 2 2 0 8 0 mcl8k 8192 20 0 0 3 0 3 3 0 8 0 mcl4k 4096 25 0 0 4 1 3 3 0 8 0 mcl2k2 2112 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 407 0 0 50 1 49 50 0 8 0 mtagpl 96 587 0 0 14 0 14 14 0 8 0 mbufpl 256 1666 0 0 92 0 92 92 0 8 0 bufpl 288 10456 0 4134 452 0 452 452 0 8 0 anonpl 24 1021622 0 1007064 159 39 120 133 0 186 0 amapchunkpl 152 95193 0 94331 47 7 40 42 0 158 0 amappl16 200 10689 0 10164 80 50 30 41 0 8 0 amappl15 192 42 0 40 1 0 1 1 0 8 0 amappl14 184 207 0 193 2 0 2 2 0 8 0 amappl13 176 10 0 10 3 3 0 1 0 8 0 amappl12 168 635 0 631 1 0 1 1 0 8 0 amappl11 160 60 0 45 1 0 1 1 0 8 0 amappl10 152 55 0 42 1 0 1 1 0 8 0 amappl9 144 971 0 971 4 4 0 1 0 8 0 amappl8 136 359 0 267 4 0 4 4 0 8 0 amappl7 128 198 0 171 2 0 2 2 0 8 0 amappl6 120 256 0 241 2 1 1 2 0 8 0 amappl5 112 248 0 239 1 0 1 1 0 8 0 amappl4 104 713 0 683 2 1 1 2 0 8 0 amappl3 96 14381 0 14333 2 0 2 2 0 8 0 amappl2 88 5599 0 5520 3 1 2 3 0 8 0 amappl1 80 114458 0 113750 25 7 18 23 0 8 0 amappl 88 33388 0 33209 7 1 6 6 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 72 135 0 5 3 0 3 3 0 8 0 uaddrrnd 24 4949 0 4924 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4949 0 4924 1 0 1 1 0 8 0 vmmpekpl 168 44656 0 44582 4 0 4 4 0 8 0 vmmpepl 168 463265 0 460713 211 66 145 151 0 357 9 vmsppl 368 4948 0 4924 4 1 3 4 0 8 0 rwobjpl 56 129164 0 121389 120 8 112 115 0 8 0 pdppl 4096 9905 0 9848 301 230 71 83 0 8 14 pvpl 32 2018335 0 1998527 324 118 206 274 0 265 0 pmappl 248 4948 0 4924 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1230 0 326 26 0 26 26 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace proc_trampoline() at proc_trampoline+0xd6 end of kernel end trace frame: 0x7f7ffffbd520, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020d68ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x28 sys/arch/amd64/amd64/bus_space.c:654 comcnputc(800,20) at comcnputc+0x1a7 sys/dev/ic/com.c:1269 cnputc(20) at cnputc+0x4b sys/dev/cons.c:218 db_putchar(2d) at db_putchar+0x316 db_force_whitespace sys/ddb/db_output.c:102 [inline] db_putchar(2d) at db_putchar+0x316 sys/ddb/db_output.c:153 kprintf() at kprintf+0x20ec sys/kern/subr_prf.c:1064 db_printf(ffffffff8280e2a0) at db_printf+0x85 sys/kern/subr_prf.c:498 fault(ffffffff827ba30f) at fault+0x95 sys/arch/amd64/amd64/trap.c:155 kpageflttrap(ffff800021296e30,8) at kpageflttrap+0x2b7 sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff800021296e30) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:339 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff800021296f30) at fifo_write+0x4e sys/miscfs/fifofs/fifo_vnops.c:272 end trace frame: 0xffff800021296fa0, count: 0 ddb{1}> trace x86_ipi_db(ffff800020d68ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x28 sys/arch/amd64/amd64/bus_space.c:654 comcnputc(800,20) at comcnputc+0x1a7 sys/dev/ic/com.c:1269 cnputc(20) at cnputc+0x4b sys/dev/cons.c:218 db_putchar(2d) at db_putchar+0x316 db_force_whitespace sys/ddb/db_output.c:102 [inline] db_putchar(2d) at db_putchar+0x316 sys/ddb/db_output.c:153 kprintf() at kprintf+0x20ec sys/kern/subr_prf.c:1064 db_printf(ffffffff8280e2a0) at db_printf+0x85 sys/kern/subr_prf.c:498 fault(ffffffff827ba30f) at fault+0x95 sys/arch/amd64/amd64/trap.c:155 kpageflttrap(ffff800021296e30,8) at kpageflttrap+0x2b7 sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff800021296e30) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:339 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff800021296f30) at fifo_write+0x4e sys/miscfs/fifofs/fifo_vnops.c:272 VOP_WRITE(fffffd8064f37440,ffff800021296fe8,3,fffffd807f7d7750) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000212175d8,fffffd8064f37440,fffffd807f7d7750,ffff8000212970c8,ffff800021297090) at ktrwriteraw+0x15f sys/kern/kern_ktrace.c:660 ktrsysret(ffff8000212175d8,5b,0,ffff8000212971c0) at ktrsysret+0x18c ktrwrite2 sys/kern/kern_ktrace.c:625 [inline] ktrsysret(ffff8000212175d8,5b,0,ffff8000212971c0) at ktrsysret+0x18c sys/kern/kern_ktrace.c:207 syscall(ffff800021297240) at syscall+0x684 mi_syscall_return sys/sys/syscall_mi.h:143 [inline] syscall(ffff800021297240) at syscall+0x684 sys/arch/amd64/amd64/trap.c:647 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc2190, count: -19