On Fri, 2019-10-25 at 11:21 +0200, Michal Hocko wrote: > On Thu 24-10-19 16:34:46, Randy Dunlap wrote: > > [adding linux-mm + people] > > > > On 10/24/19 12:36 AM, Robert Stupp wrote: > > > Hi guys, > > > > > > I've got an issue with `mlockall(MCL_CURRENT)` after upgrading > > > Ubuntu 19.04 to 19.10 - i.e. kernel version change from 5.0.x to > > > 5.3.x. > > > > > > The following simple program hangs forever with one CPU running > > > at 100% (kernel): > > Can you capture everal snapshots of proc/$(pidof $YOURTASK)/stack > while > this is happening? Sure, Approach: - one shell running while true; do cat /proc/$(pidof test)/stack; done - starting ./test in another shell + ctrl-c quite some times Vast majority of all ./test invocations return an empty 'stack' file. Some tries, maybe 1 out of 20, returned these snapshots. Was running 5.3.7 for this test. [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __do_fault+0x3c/0x130 [<0>] do_fault+0x248/0x640 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 // doubt this one is relevant [<0>] __wake_up_common_lock+0x7c/0xc0 [<0>] __wake_up_sync_key+0x1e/0x30 [<0>] __wake_up_parent+0x26/0x30 [<0>] do_notify_parent+0x1cc/0x280 [<0>] do_exit+0x703/0xaf0 [<0>] do_group_exit+0x47/0xb0 [<0>] get_signal+0x165/0x880 [<0>] do_signal+0x34/0x280 [<0>] exit_to_usermode_loop+0xbf/0x160 [<0>] do_syscall_64+0x10f/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0xc0/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __do_fault+0x3c/0x130 [<0>] do_fault+0x248/0x640 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0xc0/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0x230/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] __handle_mm_fault+0x4c5/0x7a0 [<0>] handle_mm_fault+0xca/0x1f0 [<0>] __get_user_pages+0xc0/0x770 [<0>] populate_vma_page_range+0x74/0x80 [<0>] __mm_populate+0xb1/0x150 [<0>] __x64_sys_mlockall+0x11c/0x190 [<0>] do_syscall_64+0x5a/0x130 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Some snippets from `dmesg`: [ 0.000000] microcode: microcode updated early to revision 0xb000038, date = 2019-06-18 [ 0.000000] Linux version 5.3.7-050307-generic (kernel@tangerine) (gcc version 9.2.1 20191008 (Ubuntu 9.2.1-9ubuntu2)) #201910180652 SMP Fri Oct 18 10:56:47 UTC 2019 [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-5.3.7-050307- generic root=UUID=4325fe2c-ba38-4a75-b4dc-896db1796495 ro intel_idle.max_cstate=0 quiet splash vt.handoff=7 ... [ 0.000000] BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009ffff] usable [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x0000000038d35fff] usable [ 0.000000] BIOS-e820: [mem 0x0000000038d36000-0x0000000039a94fff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000039a95000-0x0000000039d4dfff] usable [ 0.000000] BIOS-e820: [mem 0x0000000039d4e000-0x000000003a8fafff] ACPI NVS [ 0.000000] BIOS-e820: [mem 0x000000003a8fb000-0x000000003b159fff] reserved [ 0.000000] BIOS-e820: [mem 0x000000003b15a000-0x000000003b1befff] type 20 [ 0.000000] BIOS-e820: [mem 0x000000003b1bf000-0x000000003b1bffff] usable [ 0.000000] BIOS-e820: [mem 0x000000003b1c0000-0x000000003b245fff] reserved [ 0.000000] BIOS-e820: [mem 0x000000003b246000-0x000000003bffffff] usable [ 0.000000] BIOS-e820: [mem 0x000000003c000000-0x000000003dffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000040000000-0x000000004fffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed44fff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000ff000000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x00000010bfffffff] usable [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] efi: EFI v2.40 by American Megatrends [ 0.000000] efi: ESRT=0x3b156218 ACPI=0x3a55e000 ACPI 2.0=0x3a55e000 SMBIOS=0xf05e0 SMBIOS 3.0=0x3b01e000 MPS=0xfca50 [ 0.000000] SMBIOS 3.0.0 present. [ 0.000000] DMI: MSI MS-7A54/X99A TOMAHAWK (MS-7A54), BIOS 2.10 09/13/2016 [ 0.000000] tsc: Fast TSC calibration using PIT [ 0.000000] tsc: Detected 3199.897 MHz processor [ 0.001428] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved [ 0.001429] e820: remove [mem 0x000a0000-0x000fffff] usable [ 0.001433] last_pfn = 0x10c0000 max_arch_pfn = 0x400000000 [ 0.001436] MTRR default type: write-back [ 0.001437] MTRR fixed ranges enabled: [ 0.001438] 00000-9FFFF write-back [ 0.001439] A0000-BFFFF uncachable [ 0.001439] C0000-FFFFF write-protect [ 0.001440] MTRR variable ranges enabled: [ 0.001441] 0 base 000080000000 mask 3FFF80000000 uncachable [ 0.001441] 1 base 000040000000 mask 3FFFC0000000 uncachable [ 0.001442] 2 base 380000000000 mask 3FC000000000 uncachable [ 0.001443] 3 base 00003F000000 mask 3FFFFF000000 uncachable [ 0.001443] 4 base 0000E0000000 mask 3FFFF0000000 write-through [ 0.001444] 5 base 0000F0000000 mask 3FFFFE000000 write-through [ 0.001444] 6 disabled [ 0.001445] 7 disabled [ 0.001445] 8 disabled [ 0.001445] 9 disabled [ 0.001872] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.002037] last_pfn = 0x3c000 max_arch_pfn = 0x400000000 [ 0.008082] found SMP MP-table at [mem 0x000fcd80-0x000fcd8f] [ 0.008091] esrt: Reserving ESRT space from 0x000000003b156218 to 0x000000003b156250. [ 0.008098] check: Scanning 1 areas for low memory corruption [ 0.008101] Using GB pages for direct mapping [ 0.008102] BRK [0xe77001000, 0xe77001fff] PGTABLE [ 0.008104] BRK [0xe77002000, 0xe77002fff] PGTABLE [ 0.008105] BRK [0xe77003000, 0xe77003fff] PGTABLE [ 0.008122] BRK [0xe77004000, 0xe77004fff] PGTABLE [ 0.008123] BRK [0xe77005000, 0xe77005fff] PGTABLE [ 0.008186] BRK [0xe77006000, 0xe77006fff] PGTABLE [ 0.008203] BRK [0xe77007000, 0xe77007fff] PGTABLE [ 0.008206] BRK [0xe77008000, 0xe77008fff] PGTABLE [ 0.008222] BRK [0xe77009000, 0xe77009fff] PGTABLE [ 0.008230] BRK [0xe7700a000, 0xe7700afff] PGTABLE [ 0.008265] Secure boot could not be determined [ 0.008266] RAMDISK: [mem 0x2e47c000-0x310e4fff] [ 0.008271] ACPI: Early table checksum verification disabled [ 0.008274] ACPI: RSDP 0x000000003A55E000 000024 (v02 ALASKA) [ 0.008276] ACPI: XSDT 0x000000003A55E090 0000A4 (v01 ALASKA A M I 01072009 AMI 00010013) [ 0.008281] ACPI: FACP 0x000000003A591EB8 00010C (v05 ALASKA A M I 01072009 AMI 00010013) [ 0.008285] ACPI: DSDT 0x000000003A55E1D0 033CE5 (v02 ALASKA A M I 01072009 INTL 20091013) [ 0.008287] ACPI: FACS 0x000000003A8F9F80 000040 [ 0.008289] ACPI: APIC 0x000000003A591FC8 000138 (v03 ALASKA A M I 01072009 AMI 00010013) [ 0.008291] ACPI: FPDT 0x000000003A592100 000044 (v01 ALASKA A M I 01072009 AMI 00010013) [ 0.008292] ACPI: FIDT 0x000000003A592148 00009C (v01 ALASKA A M I 01072009 AMI 00010013) [ 0.008294] ACPI: MCFG 0x000000003A5921E8 00003C (v01 ALASKA A M I 01072009 MSFT 00000097) [ 0.008296] ACPI: SSDT 0x000000003A592228 00036D (v01 SataRe SataTabl 00001000 INTL 20120913) [ 0.008298] ACPI: UEFI 0x000000003A592598 000042 (v01 ALASKA A M I 01072009 00000000) [ 0.008300] ACPI: HPET 0x000000003A5925E0 000038 (v01 ALASKA A M I 00000001 INTL 20091013) [ 0.008302] ACPI: MSCT 0x000000003A592618 000090 (v01 ALASKA A M I 00000001 INTL 20091013) [ 0.008304] ACPI: SLIT 0x000000003A5926A8 00002D (v01 ALASKA A M I 00000001 INTL 20091013) [ 0.008306] ACPI: SRAT 0x000000003A5926D8 001158 (v03 ALASKA A M I 00000001 INTL 20091013) [ 0.008308] ACPI: WDDT 0x000000003A593830 000040 (v01 ALASKA A M I 00000000 INTL 20091013) [ 0.008310] ACPI: SSDT 0x000000003A593870 015307 (v02 ALASKA PmMgt 00000001 INTL 20120913) [ 0.008312] ACPI: NITR 0x000000003A5A8B78 000071 (v02 ALASKA A M I 00000001 INTL 20091013) [ 0.008314] ACPI: DMAR 0x000000003A5A8BF0 0000E4 (v01 ALASKA A M I 00000001 INTL 20091013) [ 0.008316] ACPI: ASF! 0x000000003A5A8CD8 0000A0 (v32 INTEL HCG 00000001 TFSM 000F4240) [ 0.008322] ACPI: Local APIC address 0xfee00000 [ 0.008345] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.008345] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.008345] SRAT: PXM 0 -> APIC 0x04 -> Node 0 [ 0.008346] SRAT: PXM 0 -> APIC 0x06 -> Node 0 [ 0.008346] SRAT: PXM 0 -> APIC 0x08 -> Node 0 [ 0.008347] SRAT: PXM 0 -> APIC 0x0a -> Node 0 [ 0.008347] SRAT: PXM 0 -> APIC 0x0c -> Node 0 [ 0.008347] SRAT: PXM 0 -> APIC 0x0e -> Node 0 [ 0.008348] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.008348] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.008349] SRAT: PXM 0 -> APIC 0x05 -> Node 0 [ 0.008349] SRAT: PXM 0 -> APIC 0x07 -> Node 0 [ 0.008349] SRAT: PXM 0 -> APIC 0x09 -> Node 0 [ 0.008350] SRAT: PXM 0 -> APIC 0x0b -> Node 0 [ 0.008350] SRAT: PXM 0 -> APIC 0x0d -> Node 0 [ 0.008350] SRAT: PXM 0 -> APIC 0x0f -> Node 0 [ 0.008357] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x3fffffff] [ 0.008357] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x10bfffffff] [ 0.008362] NUMA: Initialized distance table, cnt=1 [ 0.008363] NUMA: Node 0 [mem 0x00000000-0x3fffffff] + [mem 0x100000000-0x10bfffffff] -> [mem 0x00000000-0x10bfffffff] [ 0.008370] NODE_DATA(0) allocated [mem 0x10bffd4000-0x10bfffefff] [ 0.008559] Zone ranges: [ 0.008560] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.008561] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.008562] Normal [mem 0x0000000100000000-0x00000010bfffffff] [ 0.008563] Device empty [ 0.008563] Movable zone start for each node [ 0.008566] Early memory node ranges [ 0.008566] node 0: [mem 0x0000000000001000-0x000000000009ffff] [ 0.008567] node 0: [mem 0x0000000000100000-0x0000000038d35fff] [ 0.008568] node 0: [mem 0x0000000039a95000-0x0000000039d4dfff] [ 0.008568] node 0: [mem 0x000000003b1bf000-0x000000003b1bffff] [ 0.008568] node 0: [mem 0x000000003b246000-0x000000003bffffff] [ 0.008569] node 0: [mem 0x0000000100000000-0x00000010bfffffff] [ 0.008788] Zeroed struct page in unavailable ranges: 25271 pages [ 0.008789] Initmem setup node 0 [mem 0x0000000000001000- 0x00000010bfffffff] [ 0.008790] On node 0 totalpages: 16751945 [ 0.008791] DMA zone: 64 pages used for memmap [ 0.008791] DMA zone: 25 pages reserved [ 0.008792] DMA zone: 3999 pages, LIFO batch:0 [ 0.008833] DMA32 zone: 3639 pages used for memmap [ 0.008834] DMA32 zone: 232874 pages, LIFO batch:63 [ 0.014058] Normal zone: 258048 pages used for memmap [ 0.014058] Normal zone: 16515072 pages, LIFO batch:63 [ 0.168284] ACPI: PM-Timer IO Port: 0x408 [ 0.168286] ACPI: Local APIC address 0xfee00000 [ 0.168293] ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1]) [ 0.168293] ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1]) [ 0.168294] ACPI: LAPIC_NMI (acpi_id[0x04] high edge lint[0x1]) [ 0.168294] ACPI: LAPIC_NMI (acpi_id[0x06] high edge lint[0x1]) [ 0.168295] ACPI: LAPIC_NMI (acpi_id[0x08] high edge lint[0x1]) [ 0.168295] ACPI: LAPIC_NMI (acpi_id[0x0a] high edge lint[0x1]) [ 0.168295] ACPI: LAPIC_NMI (acpi_id[0x0c] high edge lint[0x1]) [ 0.168296] ACPI: LAPIC_NMI (acpi_id[0x0e] high edge lint[0x1]) [ 0.168296] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1]) [ 0.168297] ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1]) [ 0.168297] ACPI: LAPIC_NMI (acpi_id[0x05] high edge lint[0x1]) [ 0.168297] ACPI: LAPIC_NMI (acpi_id[0x07] high edge lint[0x1]) [ 0.168298] ACPI: LAPIC_NMI (acpi_id[0x09] high edge lint[0x1]) [ 0.168298] ACPI: LAPIC_NMI (acpi_id[0x0b] high edge lint[0x1]) [ 0.168298] ACPI: LAPIC_NMI (acpi_id[0x0d] high edge lint[0x1]) [ 0.168299] ACPI: LAPIC_NMI (acpi_id[0x0f] high edge lint[0x1]) [ 0.168309] IOAPIC[0]: apic_id 1, version 32, address 0xfec00000, GSI 0-23 [ 0.168313] IOAPIC[1]: apic_id 2, version 32, address 0xfec01000, GSI 24-47 [ 0.168314] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 0.168315] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.168316] ACPI: IRQ0 used by override. [ 0.168317] ACPI: IRQ9 used by override. [ 0.168319] Using ACPI (MADT) for SMP configuration information [ 0.168320] ACPI: HPET id: 0x8086a701 base: 0xfed00000 [ 0.168322] smpboot: Allowing 16 CPUs, 0 hotplug CPUs [ 0.168334] PM: Registered nosave memory: [mem 0x00000000- 0x00000fff] [ 0.168335] PM: Registered nosave memory: [mem 0x000a0000- 0x000fffff] [ 0.168336] PM: Registered nosave memory: [mem 0x38d36000- 0x39a94fff] [ 0.168337] PM: Registered nosave memory: [mem 0x39d4e000- 0x3a8fafff] [ 0.168337] PM: Registered nosave memory: [mem 0x3a8fb000- 0x3b159fff] [ 0.168338] PM: Registered nosave memory: [mem 0x3b15a000- 0x3b1befff] [ 0.168339] PM: Registered nosave memory: [mem 0x3b1c0000- 0x3b245fff] [ 0.168340] PM: Registered nosave memory: [mem 0x3c000000- 0x3dffffff] [ 0.168340] PM: Registered nosave memory: [mem 0x3e000000- 0x3fffffff] [ 0.168341] PM: Registered nosave memory: [mem 0x40000000- 0x4fffffff] [ 0.168341] PM: Registered nosave memory: [mem 0x50000000- 0xfed1bfff] [ 0.168341] PM: Registered nosave memory: [mem 0xfed1c000- 0xfed44fff] [ 0.168342] PM: Registered nosave memory: [mem 0xfed45000- 0xfeffffff] [ 0.168342] PM: Registered nosave memory: [mem 0xff000000- 0xffffffff] [ 0.168344] [mem 0x50000000-0xfed1bfff] available for PCI devices [ 0.168345] Booting paravirtualized kernel on bare hardware [ 0.168347] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns [ 0.168352] setup_percpu: NR_CPUS:8192 nr_cpumask_bits:16 nr_cpu_ids:16 nr_node_ids:1 [ 0.168718] percpu: Embedded 54 pages/cpu s184320 r8192 d28672 u262144 [ 0.168724] pcpu-alloc: s184320 r8192 d28672 u262144 alloc=1*2097152 [ 0.168724] pcpu-alloc: [0] 00 01 02 03 04 05 06 07 [0] 08 09 10 11 12 13 14 15 [ 0.168747] Built 1 zonelists, mobility grouping on. Total pages: 16490169 [ 0.168748] Policy zone: Normal [ 0.168749] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.3.7- 050307-generic root=UUID=4325fe2c-ba38-4a75-b4dc-896db1796495 ro intel_idle.max_cstate=0 quiet splash vt.handoff=7 [ 0.172892] Dentry cache hash table entries: 8388608 (order: 14, 67108864 bytes, linear) [ 0.175045] Inode-cache hash table entries: 4194304 (order: 13, 33554432 bytes, linear) [ 0.175154] mem auto-init: stack:off, heap alloc:on, heap free:off [ 0.179532] Calgary: detecting Calgary via BIOS EBDA area [ 0.179533] Calgary: Unable to locate Rio Grande table in EBDA - bailing! [ 0.318204] Memory: 65577656K/67007780K available (14339K kernel code, 2387K rwdata, 4700K rodata, 2664K init, 5060K bss, 1430124K reserved, 0K cma-reserved) [ 0.318334] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=16, Nodes=1 [ 0.318344] Kernel/User page tables isolation: enabled [ 0.318357] ftrace: allocating 43143 entries in 169 pages [ 0.330881] rcu: Hierarchical RCU implementation. [ 0.330883] rcu: RCU restricting CPUs from NR_CPUS=8192 to nr_cpu_ids=16. [ 0.330883] Tasks RCU enabled. [ 0.330884] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies. [ 0.330884] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=16 [ 0.333275] NR_IRQS: 524544, nr_irqs: 960, preallocated irqs: 16 [ 0.333488] random: crng done (trusting CPU's manufacturer) [ 0.333512] Console: colour dummy device 80x25 [ 0.333516] printk: console [tty0] enabled [ 0.333530] ACPI: Core revision 20190703 [ 0.333738] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 133484882848 ns [ 0.333747] APIC: Switch to symmetric I/O mode setup [ 0.333748] DMAR: Host address width 46 [ 0.333748] DMAR: DRHD base: 0x000000fbffd000 flags: 0x0 [ 0.333752] DMAR: dmar0: reg_base_addr fbffd000 ver 1:0 cap 8d2008c10ef0466 ecap f0205b [ 0.333753] DMAR: DRHD base: 0x000000fbffc000 flags: 0x1 [ 0.333755] DMAR: dmar1: reg_base_addr fbffc000 ver 1:0 cap 8d2078c106f0466 ecap f020df [ 0.333756] DMAR: RMRR base: 0x0000003b030000 end: 0x0000003b03ffff [ 0.333757] DMAR: ATSR flags: 0x0 [ 0.333757] DMAR: RHSA base: 0x000000fbffc000 proximity domain: 0x0 [ 0.333759] DMAR-IR: IOAPIC id 1 under DRHD base 0xfbffc000 IOMMU 1 [ 0.333759] DMAR-IR: IOAPIC id 2 under DRHD base 0xfbffc000 IOMMU 1 [ 0.333760] DMAR-IR: HPET id 0 under DRHD base 0xfbffc000 [ 0.333760] DMAR-IR: x2apic is disabled because BIOS sets x2apic opt out bit. [ 0.333760] DMAR-IR: Use 'intremap=no_x2apic_optout' to override the BIOS setting. [ 0.334167] DMAR-IR: Enabled IRQ remapping in xapic mode [ 0.334168] x2apic: IRQ remapping doesn't support X2APIC mode [ 0.334171] Switched APIC routing to physical flat. [ 0.334649] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 0.353749] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x2e1fe890e9e, max_idle_ns: 440795268505 ns [ 0.353751] Calibrating delay loop (skipped), value calculated using timer frequency.. 6399.79 BogoMIPS (lpj=12799588) [ 0.353752] pid_max: default: 32768 minimum: 301 [ 0.356787] LSM: Security Framework initializing [ 0.356795] Yama: becoming mindful. [ 0.356848] AppArmor: AppArmor initialized [ 0.356976] Mount-cache hash table entries: 131072 (order: 8, 1048576 bytes, linear) [ 0.357078] Mountpoint-cache hash table entries: 131072 (order: 8, 1048576 bytes, linear) [ 0.357204] *** VALIDATE proc *** [ 0.357244] *** VALIDATE cgroup1 *** [ 0.357245] *** VALIDATE cgroup2 *** [ 0.357297] mce: CPU0: Thermal monitoring enabled (TM1) [ 0.357334] process: using mwait in idle threads [ 0.357336] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 0.357337] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4 [ 0.357338] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 0.357340] Spectre V2 : Mitigation: Full generic retpoline [ 0.357340] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch [ 0.357341] Spectre V2 : Enabling Restricted Speculation for firmware calls [ 0.357342] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 0.357342] Spectre V2 : User space: Mitigation: STIBP via seccomp and prctl [ 0.357343] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl and seccomp [ 0.357345] MDS: Mitigation: Clear CPU buffers [ 0.357526] Freeing SMP alternatives memory: 36K [ 0.361805] TSC deadline timer enabled [ 0.361806] smpboot: CPU0: Intel(R) Core(TM) i7-6900K CPU @ 3.20GHz (family: 0x6, model: 0x4f, stepping: 0x1) [ 0.361888] Performance Events: PEBS fmt2+, Broadwell events, 16- deep LBR, full-width counters, Intel PMU driver. [ 0.361893] ... version: 3 [ 0.361893] ... bit width: 48 [ 0.361894] ... generic registers: 4 [ 0.361894] ... value mask: 0000ffffffffffff [ 0.361895] ... max period: 00007fffffffffff [ 0.361895] ... fixed-purpose events: 3 [ 0.361895] ... event mask: 000000070000000f [ 0.361921] rcu: Hierarchical SRCU implementation. [ 0.363125] NMI watchdog: Enabled. Permanently consumes one hw-PMU counter. [ 0.363220] smp: Bringing up secondary CPUs ... [ 0.363284] x86: Booting SMP configuration: [ 0.363284] .... node #0, CPUs: #1 #2 #3 #4 #5 #6 #7 #8 [ 0.381823] MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details. [ 0.381856] #9 #10 #11 #12 #13 #14 #15 [ 0.386438] smp: Brought up 1 node, 16 CPUs [ 0.386438] smpboot: Max logical packages: 1 [ 0.386438] smpboot: Total of 16 processors activated (102396.70 BogoMIPS) [ 0.390924] devtmpfs: initialized [ 0.390924] x86/mm: Memory block size: 1024MB [ 0.390924] PM: Registering ACPI NVS region [mem 0x39d4e000- 0x3a8fafff] (12242944 bytes) [ 0.390924] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 0.390924] futex hash table entries: 4096 (order: 6, 262144 bytes, linear) [ 0.390924] pinctrl core: initialized pinctrl subsystem [ 0.390924] PM: RTC time: 08:17:57, date: 2019-10-25 [ 0.390924] NET: Registered protocol family 16 [ 0.390924] audit: initializing netlink subsys (disabled) [ 0.390924] audit: type=2000 audit(1571991477.056:1): state=initialized audit_enabled=0 res=1 [ 0.390924] EISA bus registered [ 0.390924] cpuidle: using governor ladder [ 0.390924] cpuidle: using governor menu [ 0.390924] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it [ 0.390924] ACPI: bus type PCI registered [ 0.390924] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 0.390924] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0x40000000-0x4fffffff] (base 0x40000000) [ 0.390924] PCI: MMCONFIG at [mem 0x40000000-0x4fffffff] reserved in E820 [ 0.390924] PCI: Using configuration type 1 for base access [ 0.393952] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 0.393952] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 0.393952] ACPI: Added _OSI(Module Device) [ 0.393952] ACPI: Added _OSI(Processor Device) [ 0.393952] ACPI: Added _OSI(3.0 _SCP Extensions) [ 0.393952] ACPI: Added _OSI(Processor Aggregator Device) [ 0.393952] ACPI: Added _OSI(Linux-Dell-Video) [ 0.393952] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 0.393952] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 0.444579] ACPI: 3 ACPI AML tables successfully acquired and loaded [ 0.448501] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored [ 0.451495] ACPI: Dynamic OEM Table Load: [ 0.478469] ACPI: Interpreter enabled [ 0.478482] ACPI: (supports S0 S3 S4 S5) [ 0.478483] ACPI: Using IOAPIC for interrupt routing [ 0.478509] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 0.479312] ACPI: Enabled 4 GPEs in block 00 to 3F [ 0.514946] ACPI: PCI Root Bridge [UNC0] (domain 0000 [bus ff]) [ 0.514949] acpi PNP0A03:03: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 0.517147] acpi PNP0A03:03: _OSC: platform does not support [SHPCHotplug PME AER LTR] [ 0.518203] acpi PNP0A03:03: _OSC: OS now controls [PCIeHotplug PCIeCapability] [ 0.518204] acpi PNP0A03:03: FADT indicates ASPM is unsupported, using BIOS configuration [ 0.518234] PCI host bridge to bus 0000:ff ...
