* Re: GPF in intel_pmu_lbr_reset() with qemu -cpu host [not found] <4055058.qLAukpngnj@al> @ 2014-03-21 17:46 ` Peter Wu 2014-03-21 19:04 ` Venkatesh Srinivas 0 siblings, 1 reply; 11+ messages in thread From: Peter Wu @ 2014-03-21 17:46 UTC (permalink / raw) To: Peter Zijlstra Cc: Ingo Molnar, Andi Kleen, linux-kernel, H. Peter Anvin, kvm, Gleb Natapov, Paolo Bonzini cc'ing kvm people and list. On Friday 21 March 2014 18:42:40 Peter Wu wrote: > Hi, > > While trying to run QEMU with `-enable-kvm -host cpu`, I get a GPF in > intel_pmu_lbr_reset(): > > [ 0.024000] general protection fault: 0000 [#1] > [ 0.024000] CPU: 0 PID: 1 Comm: swapper Not tainted 3.14.0-rc7-qemu-00059-g08edb33 #14 > [ 0.024000] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 > [ 0.024000] task: ffff88003e050000 ti: ffff88003e054000 task.ti: ffff88003e054000 > [ 0.024000] RIP: 0010:[<ffffffff8101148a>] [<ffffffff8101148a>] intel_pmu_lbr_reset+0x2a/0x80 > [ 0.024000] RSP: 0000:ffff88003e055e78 EFLAGS: 00000002 > [ 0.024000] RAX: 0000000000000000 RBX: 0000000000000286 RCX: 0000000000000680 > [ 0.024000] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 > [ 0.024000] RBP: ffffffff81622120 R08: ffff88003ffee0e0 R09: ffff88003e00bf00 > [ 0.024000] R10: 0000000000000000 R11: 0000000000000004 R12: 0000000000000000 > [ 0.024000] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 > [ 0.024000] FS: 0000000000000000(0000) GS:ffffffff8161e000(0000) knlGS:0000000000000000 > [ 0.024000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 0.024000] CR2: ffff8800019bb000 CR3: 0000000001611000 CR4: 00000000001407b0 > [ 0.024000] Stack: > [ 0.024000] ffffffff8101308a ffffffff8100e3da ffffffff8165ba62 0000000000000000 > [ 0.024000] ffffffff8165b5bd 0000000000000000 0000000000000000 0000000000000000 > [ 0.024000] ffffffff81655dcd 0000000000000000 0000000000000000 0000000000000000 > [ 0.024000] Call Trace: > [ 0.024000] [<ffffffff8101308a>] ? intel_pmu_cpu_starting+0xa/0x80 > [ 0.024000] [<ffffffff8100e3da>] ? x86_pmu_notifier+0x5a/0xc0 > [ 0.024000] [<ffffffff8165ba62>] ? init_hw_perf_events+0x4a5/0x4dd > [ 0.024000] [<ffffffff8165b5bd>] ? check_bugs+0x42/0x42 > [ 0.024000] [<ffffffff81655dcd>] ? do_one_initcall+0x76/0xf9 > [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 > [ 0.024000] [<ffffffff81655ea7>] ? kernel_init_freeable+0x57/0x177 > [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 > [ 0.024000] [<ffffffff81276b75>] ? kernel_init+0x5/0xe0 > [ 0.024000] [<ffffffff8128067a>] ? ret_from_fork+0x7a/0xb0 > [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 > [ 0.024000] Code: 00 8b 15 02 c4 63 00 85 d2 74 69 f6 05 af c3 63 00 3f 75 2d 85 d2 7e 5c 31 f6 31 c0 0f 1f 44 00 00 8b 0d d2 c3 63 00 89 c2 01 f1 <0f> 30 83 c6 01 3b 35 d3 c3 63 00 7c e9 f3 c3 0f 1f 80 00 00 00 > [ 0.024000] RIP [<ffffffff8101148a>] intel_pmu_lbr_reset+0x2a/0x80 > [ 0.024000] RSP <ffff88003e055e78> > [ 0.024000] ---[ end trace ecbd794f78441b2c ]--- > [ 0.024002] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b > > > It possibly has something to do with the msr write. Reproducable with: > > qemu-system-x86_64 -enable-kvm -cpu host -kernel bzImage -m 1G -serial file:ser.txt > > In the host dmesg, the following is visible when qemu: > > kvm [4939]: vcpu0 unhandled wrmsr: 0x680 data 0 > > The full guest dmesg is shown below. The issue occurs also with > v3.13.6, v3.12.14, v3.10.33 (other versions are not tested). > > QEMU: 1.7.0 > Host kernel: v3.14-rc5 > Guest kernel: v3.14-rc7-59-g08edb33 (.config on the bottom) > > Kind regards, > Peter > > ### dmesg > [ 0.000000] Linux version 3.14.0-rc7-qemu-00059-g08edb33 (pc@antartica) (gcc version 4.8.2 (Ubuntu 4.8.2-16ubuntu6) ) #14 Fri Mar 21 17:30:49 CET 2014 > [ 0.000000] Command line: console=ttyS0 loglevel=8 > [ 0.000000] KERNEL supported cpus: > [ 0.000000] Intel GenuineIntel > [ 0.000000] e820: BIOS-provided physical RAM map: > [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable > [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved > [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved > [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000003fffdfff] usable > [ 0.000000] BIOS-e820: [mem 0x000000003fffe000-0x000000003fffffff] reserved > [ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved > [ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved > [ 0.000000] NX (Execute Disable) protection: active > [ 0.000000] SMBIOS 2.4 present. > [ 0.000000] DMI: Bochs Bochs, BIOS Bochs 01/01/2011 > [ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved > [ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable > [ 0.000000] e820: last_pfn = 0x3fffe max_arch_pfn = 0x400000000 > [ 0.000000] MTRR default type: write-back > [ 0.000000] MTRR fixed ranges enabled: > [ 0.000000] 00000-9FFFF write-back > [ 0.000000] A0000-BFFFF uncachable > [ 0.000000] C0000-FFFFF write-protect > [ 0.000000] MTRR variable ranges enabled: > [ 0.000000] 0 base 0080000000 mask FF80000000 uncachable > [ 0.000000] 1 disabled > [ 0.000000] 2 disabled > [ 0.000000] 3 disabled > [ 0.000000] 4 disabled > [ 0.000000] 5 disabled > [ 0.000000] 6 disabled > [ 0.000000] 7 disabled > [ 0.000000] x86 PAT enabled: cpu 0, old 0x70406, new 0x7010600070106 > [ 0.000000] found SMP MP-table at [mem 0x000f1b10-0x000f1b1f] mapped at [ffff8800000f1b10] > [ 0.000000] Base memory trampoline at [ffff880000099000] 99000 size 24576 > [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff] > [ 0.000000] [mem 0x00000000-0x000fffff] page 4k > [ 0.000000] BRK [0x019bb000, 0x019bbfff] PGTABLE > [ 0.000000] BRK [0x019bc000, 0x019bcfff] PGTABLE > [ 0.000000] BRK [0x019bd000, 0x019bdfff] PGTABLE > [ 0.000000] init_memory_mapping: [mem 0x3fc00000-0x3fdfffff] > [ 0.000000] [mem 0x3fc00000-0x3fdfffff] page 2M > [ 0.000000] init_memory_mapping: [mem 0x3c000000-0x3fbfffff] > [ 0.000000] [mem 0x3c000000-0x3fbfffff] page 2M > [ 0.000000] init_memory_mapping: [mem 0x00100000-0x3bffffff] > [ 0.000000] [mem 0x00100000-0x001fffff] page 4k > [ 0.000000] [mem 0x00200000-0x3bffffff] page 2M > [ 0.000000] init_memory_mapping: [mem 0x3fe00000-0x3fffdfff] > [ 0.000000] [mem 0x3fe00000-0x3fffdfff] page 4k > [ 0.000000] BRK [0x019be000, 0x019befff] PGTABLE > [ 0.000000] ACPI: RSDP 00000000000f19b0 000014 (v00 BOCHS ) > [ 0.000000] ACPI: RSDT 000000003ffffad3 000034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) > [ 0.000000] ACPI: FACP 000000003ffff177 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001) > [ 0.000000] ACPI: DSDT 000000003fffe040 001137 (v01 BXPC BXDSDT 00000001 INTL 20130823) > [ 0.000000] ACPI: FACS 000000003fffe000 000040 > [ 0.000000] ACPI: SSDT 000000003ffff1eb 000838 (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001) > [ 0.000000] ACPI: APIC 000000003ffffa23 000078 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) > [ 0.000000] ACPI: HPET 000000003ffffa9b 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) > [ 0.000000] ACPI: Local APIC address 0xfee00000 > [ 0.000000] [ffffea0000000000-ffffea0000ffffff] PMD -> [ffff88003e600000-ffff88003f5fffff] on node 0 > [ 0.000000] Zone ranges: > [ 0.000000] DMA [mem 0x00001000-0x00ffffff] > [ 0.000000] DMA32 [mem 0x01000000-0xffffffff] > [ 0.000000] Normal empty > [ 0.000000] Movable zone start for each node > [ 0.000000] Early memory node ranges > [ 0.000000] node 0: [mem 0x00001000-0x0009efff] > [ 0.000000] node 0: [mem 0x00100000-0x3fffdfff] > [ 0.000000] On node 0 totalpages: 262044 > [ 0.000000] DMA zone: 64 pages used for memmap > [ 0.000000] DMA zone: 21 pages reserved > [ 0.000000] DMA zone: 3998 pages, LIFO batch:0 > [ 0.000000] DMA32 zone: 4032 pages used for memmap > [ 0.000000] DMA32 zone: 258046 pages, LIFO batch:31 > [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 > [ 0.000000] ACPI: Local APIC address 0xfee00000 > [ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) > [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) > [ 0.000000] ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0]) > [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 > [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) > [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) > [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) > [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) > [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) > [ 0.000000] ACPI: IRQ0 used by override. > [ 0.000000] ACPI: IRQ2 used by override. > [ 0.000000] ACPI: IRQ5 used by override. > [ 0.000000] ACPI: IRQ9 used by override. > [ 0.000000] ACPI: IRQ10 used by override. > [ 0.000000] ACPI: IRQ11 used by override. > [ 0.000000] Using ACPI (MADT) for SMP configuration information > [ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000 > [ 0.000000] nr_irqs_gsi: 40 > [ 0.000000] e820: [mem 0x40000000-0xfeffbfff] available for PCI devices > [ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768 > [ 0.000000] pcpu-alloc: [0] 0 > [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 257927 > [ 0.000000] Kernel command line: console=ttyS0 loglevel=8 > [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) > [ 0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes) > [ 0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) > [ 0.000000] xsave: enabled xstate_bv 0x7, cntxt size 0x340 > [ 0.000000] Memory: 1020072K/1048176K available (2567K kernel code, 332K rwdata, 704K rodata, 3052K init, 424K bss, 28104K reserved) > [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 > [ 0.000000] NR_IRQS:4352 nr_irqs:256 16 > [ 0.000000] Console: colour VGA+ 80x25 > [ 0.000000] console [ttyS0] enabled > [ 0.000000] hpet clockevent registered > [ 0.000000] tsc: Fast TSC calibration using PIT > [ 0.000000] tsc: Detected 3392.306 MHz processor > [ 0.008008] Calibrating delay loop (skipped), value calculated using timer frequency.. 6784.61 BogoMIPS (lpj=13569224) > [ 0.009740] pid_max: default: 32768 minimum: 301 > [ 0.010391] ACPI: Core revision 20131218 > [ 0.012206] ACPI: All ACPI Tables successfully acquired > [ 0.013024] Mount-cache hash table entries: 256 > [ 0.013776] Last level iTLB entries: 4KB 512, 2MB 8, 4MB 8 > [ 0.013776] Last level dTLB entries: 4KB 512, 2MB 32, 4MB 32, 1GB 0 > [ 0.013776] tlb_flushall_shift: 2 > [ 0.016002] CPU: Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz (fam: 06, model: 3a, stepping: 09) > [ 0.017519] Performance Events: 16-deep LBR, IvyBridge events, Intel PMU driver. > [ 0.018732] ... version: 2 > [ 0.019362] ... bit width: 48 > [ 0.020002] ... generic registers: 4 > [ 0.020574] ... value mask: 0000ffffffffffff > [ 0.021324] ... max period: 000000007fffffff > [ 0.022096] ... fixed-purpose events: 3 > [ 0.022664] ... event mask: 000000070000000f > [ 0.024000] general protection fault: 0000 [#1] > [ 0.024000] CPU: 0 PID: 1 Comm: swapper Not tainted 3.14.0-rc7-qemu-00059-g08edb33 #14 > [ 0.024000] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 > [ 0.024000] task: ffff88003e050000 ti: ffff88003e054000 task.ti: ffff88003e054000 > [ 0.024000] RIP: 0010:[<ffffffff8101148a>] [<ffffffff8101148a>] intel_pmu_lbr_reset+0x2a/0x80 > [ 0.024000] RSP: 0000:ffff88003e055e78 EFLAGS: 00000002 > [ 0.024000] RAX: 0000000000000000 RBX: 0000000000000286 RCX: 0000000000000680 > [ 0.024000] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 > [ 0.024000] RBP: ffffffff81622120 R08: ffff88003ffee0e0 R09: ffff88003e00bf00 > [ 0.024000] R10: 0000000000000000 R11: 0000000000000004 R12: 0000000000000000 > [ 0.024000] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 > [ 0.024000] FS: 0000000000000000(0000) GS:ffffffff8161e000(0000) knlGS:0000000000000000 > [ 0.024000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 0.024000] CR2: ffff8800019bb000 CR3: 0000000001611000 CR4: 00000000001407b0 > [ 0.024000] Stack: > [ 0.024000] ffffffff8101308a ffffffff8100e3da ffffffff8165ba62 0000000000000000 > [ 0.024000] ffffffff8165b5bd 0000000000000000 0000000000000000 0000000000000000 > [ 0.024000] ffffffff81655dcd 0000000000000000 0000000000000000 0000000000000000 > [ 0.024000] Call Trace: > [ 0.024000] [<ffffffff8101308a>] ? intel_pmu_cpu_starting+0xa/0x80 > [ 0.024000] [<ffffffff8100e3da>] ? x86_pmu_notifier+0x5a/0xc0 > [ 0.024000] [<ffffffff8165ba62>] ? init_hw_perf_events+0x4a5/0x4dd > [ 0.024000] [<ffffffff8165b5bd>] ? check_bugs+0x42/0x42 > [ 0.024000] [<ffffffff81655dcd>] ? do_one_initcall+0x76/0xf9 > [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 > [ 0.024000] [<ffffffff81655ea7>] ? kernel_init_freeable+0x57/0x177 > [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 > [ 0.024000] [<ffffffff81276b75>] ? kernel_init+0x5/0xe0 > [ 0.024000] [<ffffffff8128067a>] ? ret_from_fork+0x7a/0xb0 > [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 > [ 0.024000] Code: 00 8b 15 02 c4 63 00 85 d2 74 69 f6 05 af c3 63 00 3f 75 2d 85 d2 7e 5c 31 f6 31 c0 0f 1f 44 00 00 8b 0d d2 c3 63 00 89 c2 01 f1 <0f> 30 83 c6 01 3b 35 d3 c3 63 00 7c e9 f3 c3 0f 1f 80 00 00 00 > [ 0.024000] RIP [<ffffffff8101148a>] intel_pmu_lbr_reset+0x2a/0x80 > [ 0.024000] RSP <ffff88003e055e78> > [ 0.024000] ---[ end trace ecbd794f78441b2c ]--- > [ 0.024002] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b > > ### .config > # > # Automatically generated file; DO NOT EDIT. > # Linux/x86 3.14.0-rc7 Kernel Configuration > # > CONFIG_64BIT=y > CONFIG_X86_64=y > CONFIG_X86=y > CONFIG_INSTRUCTION_DECODER=y > CONFIG_OUTPUT_FORMAT="elf64-x86-64" > CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig" > CONFIG_LOCKDEP_SUPPORT=y > CONFIG_STACKTRACE_SUPPORT=y > CONFIG_HAVE_LATENCYTOP_SUPPORT=y > CONFIG_MMU=y > CONFIG_NEED_DMA_MAP_STATE=y > CONFIG_NEED_SG_DMA_LENGTH=y > CONFIG_GENERIC_ISA_DMA=y > CONFIG_GENERIC_BUG=y > CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y > CONFIG_GENERIC_HWEIGHT=y > CONFIG_ARCH_MAY_HAVE_PC_FDC=y > CONFIG_RWSEM_XCHGADD_ALGORITHM=y > CONFIG_GENERIC_CALIBRATE_DELAY=y > CONFIG_ARCH_HAS_CPU_RELAX=y > CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y > CONFIG_ARCH_HAS_CPU_AUTOPROBE=y > CONFIG_HAVE_SETUP_PER_CPU_AREA=y > CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y > CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y > CONFIG_ARCH_HIBERNATION_POSSIBLE=y > CONFIG_ARCH_SUSPEND_POSSIBLE=y > CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y > CONFIG_ARCH_WANT_GENERAL_HUGETLB=y > CONFIG_ZONE_DMA32=y > CONFIG_AUDIT_ARCH=y > CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y > CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y > CONFIG_ARCH_HWEIGHT_CFLAGS="-fcall-saved-rdi -fcall-saved-rsi -fcall-saved-rdx -fcall-saved-rcx -fcall-saved-r8 -fcall-saved-r9 -fcall-saved-r10 -fcall-saved-r11" > CONFIG_ARCH_SUPPORTS_UPROBES=y > CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" > CONFIG_IRQ_WORK=y > CONFIG_BUILDTIME_EXTABLE_SORT=y > > # > # General setup > # > CONFIG_BROKEN_ON_SMP=y > CONFIG_INIT_ENV_ARG_LIMIT=32 > CONFIG_CROSS_COMPILE="" > # CONFIG_COMPILE_TEST is not set > CONFIG_LOCALVERSION="-qemu" > CONFIG_LOCALVERSION_AUTO=y > CONFIG_HAVE_KERNEL_GZIP=y > CONFIG_HAVE_KERNEL_BZIP2=y > CONFIG_HAVE_KERNEL_LZMA=y > CONFIG_HAVE_KERNEL_XZ=y > CONFIG_HAVE_KERNEL_LZO=y > CONFIG_HAVE_KERNEL_LZ4=y > CONFIG_KERNEL_GZIP=y > # CONFIG_KERNEL_BZIP2 is not set > # CONFIG_KERNEL_LZMA is not set > # CONFIG_KERNEL_XZ is not set > # CONFIG_KERNEL_LZO is not set > # CONFIG_KERNEL_LZ4 is not set > CONFIG_DEFAULT_HOSTNAME="(none)" > # CONFIG_SWAP is not set > # CONFIG_SYSVIPC is not set > # CONFIG_POSIX_MQUEUE is not set > # CONFIG_FHANDLE is not set > # CONFIG_AUDIT is not set > > # > # IRQ subsystem > # > CONFIG_GENERIC_IRQ_PROBE=y > CONFIG_GENERIC_IRQ_SHOW=y > CONFIG_IRQ_FORCED_THREADING=y > CONFIG_SPARSE_IRQ=y > CONFIG_CLOCKSOURCE_WATCHDOG=y > CONFIG_ARCH_CLOCKSOURCE_DATA=y > CONFIG_GENERIC_TIME_VSYSCALL=y > CONFIG_GENERIC_CLOCKEVENTS=y > CONFIG_GENERIC_CLOCKEVENTS_BUILD=y > CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y > CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y > CONFIG_GENERIC_CMOS_UPDATE=y > > # > # Timers subsystem > # > CONFIG_HZ_PERIODIC=y > # CONFIG_NO_HZ_IDLE is not set > # CONFIG_NO_HZ is not set > # CONFIG_HIGH_RES_TIMERS is not set > > # > # CPU/Task time and stats accounting > # > CONFIG_TICK_CPU_ACCOUNTING=y > # CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set > # CONFIG_IRQ_TIME_ACCOUNTING is not set > # CONFIG_BSD_PROCESS_ACCT is not set > # CONFIG_TASKSTATS is not set > > # > # RCU Subsystem > # > CONFIG_TINY_RCU=y > # CONFIG_PREEMPT_RCU is not set > # CONFIG_RCU_STALL_COMMON is not set > # CONFIG_TREE_RCU_TRACE is not set > # CONFIG_IKCONFIG is not set > CONFIG_LOG_BUF_SHIFT=17 > CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y > CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y > CONFIG_ARCH_SUPPORTS_INT128=y > CONFIG_ARCH_WANTS_PROT_NUMA_PROT_NONE=y > # CONFIG_CGROUPS is not set > # CONFIG_CHECKPOINT_RESTORE is not set > # CONFIG_NAMESPACES is not set > # CONFIG_SCHED_AUTOGROUP is not set > # CONFIG_SYSFS_DEPRECATED is not set > # CONFIG_RELAY is not set > CONFIG_BLK_DEV_INITRD=y > CONFIG_INITRAMFS_SOURCE="/tmp/qemu-root /tmp/initramfs/list" > CONFIG_INITRAMFS_ROOT_UID=0 > CONFIG_INITRAMFS_ROOT_GID=0 > CONFIG_RD_GZIP=y > # CONFIG_RD_BZIP2 is not set > # CONFIG_RD_LZMA is not set > # CONFIG_RD_XZ is not set > # CONFIG_RD_LZO is not set > # CONFIG_RD_LZ4 is not set > # CONFIG_INITRAMFS_COMPRESSION_NONE is not set > CONFIG_INITRAMFS_COMPRESSION_GZIP=y > # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set > CONFIG_SYSCTL=y > CONFIG_ANON_INODES=y > CONFIG_SYSCTL_EXCEPTION_TRACE=y > CONFIG_HAVE_PCSPKR_PLATFORM=y > CONFIG_EXPERT=y > # CONFIG_SYSCTL_SYSCALL is not set > CONFIG_KALLSYMS=y > # CONFIG_KALLSYMS_ALL is not set > CONFIG_PRINTK=y > CONFIG_BUG=y > CONFIG_PCSPKR_PLATFORM=y > CONFIG_BASE_FULL=y > CONFIG_FUTEX=y > CONFIG_EPOLL=y > CONFIG_SIGNALFD=y > CONFIG_TIMERFD=y > CONFIG_EVENTFD=y > CONFIG_SHMEM=y > CONFIG_AIO=y > CONFIG_PCI_QUIRKS=y > # CONFIG_EMBEDDED is not set > CONFIG_HAVE_PERF_EVENTS=y > > # > # Kernel Performance Events And Counters > # > CONFIG_PERF_EVENTS=y > # CONFIG_DEBUG_PERF_USE_VMALLOC is not set > CONFIG_VM_EVENT_COUNTERS=y > CONFIG_SLUB_DEBUG=y > # CONFIG_COMPAT_BRK is not set > # CONFIG_SLAB is not set > CONFIG_SLUB=y > # CONFIG_SLOB is not set > # CONFIG_PROFILING is not set > CONFIG_HAVE_OPROFILE=y > CONFIG_OPROFILE_NMI_TIMER=y > CONFIG_JUMP_LABEL=y > # CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set > CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y > CONFIG_ARCH_USE_BUILTIN_BSWAP=y > CONFIG_HAVE_IOREMAP_PROT=y > CONFIG_HAVE_KPROBES=y > CONFIG_HAVE_KRETPROBES=y > CONFIG_HAVE_OPTPROBES=y > CONFIG_HAVE_KPROBES_ON_FTRACE=y > CONFIG_HAVE_ARCH_TRACEHOOK=y > CONFIG_HAVE_DMA_ATTRS=y > CONFIG_GENERIC_SMP_IDLE_THREAD=y > CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y > CONFIG_HAVE_DMA_API_DEBUG=y > CONFIG_HAVE_HW_BREAKPOINT=y > CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y > CONFIG_HAVE_USER_RETURN_NOTIFIER=y > CONFIG_HAVE_PERF_EVENTS_NMI=y > CONFIG_HAVE_PERF_REGS=y > CONFIG_HAVE_PERF_USER_STACK_DUMP=y > CONFIG_HAVE_ARCH_JUMP_LABEL=y > CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y > CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y > CONFIG_HAVE_CMPXCHG_LOCAL=y > CONFIG_HAVE_CMPXCHG_DOUBLE=y > CONFIG_HAVE_ARCH_SECCOMP_FILTER=y > CONFIG_HAVE_CC_STACKPROTECTOR=y > # CONFIG_CC_STACKPROTECTOR is not set > CONFIG_CC_STACKPROTECTOR_NONE=y > # CONFIG_CC_STACKPROTECTOR_REGULAR is not set > # CONFIG_CC_STACKPROTECTOR_STRONG is not set > CONFIG_HAVE_CONTEXT_TRACKING=y > CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y > CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y > CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y > CONFIG_HAVE_ARCH_SOFT_DIRTY=y > CONFIG_MODULES_USE_ELF_RELA=y > CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y > > # > # GCOV-based kernel profiling > # > # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set > CONFIG_SLABINFO=y > CONFIG_RT_MUTEXES=y > CONFIG_BASE_SMALL=0 > # CONFIG_MODULES is not set > CONFIG_BLOCK=y > # CONFIG_BLK_DEV_BSG is not set > # CONFIG_BLK_DEV_BSGLIB is not set > # CONFIG_BLK_DEV_INTEGRITY is not set > # CONFIG_BLK_CMDLINE_PARSER is not set > > # > # Partition Types > # > CONFIG_PARTITION_ADVANCED=y > # CONFIG_ACORN_PARTITION is not set > # CONFIG_AIX_PARTITION is not set > # CONFIG_OSF_PARTITION is not set > # CONFIG_AMIGA_PARTITION is not set > # CONFIG_ATARI_PARTITION is not set > # CONFIG_MAC_PARTITION is not set > CONFIG_MSDOS_PARTITION=y > # CONFIG_BSD_DISKLABEL is not set > # CONFIG_MINIX_SUBPARTITION is not set > # CONFIG_SOLARIS_X86_PARTITION is not set > # CONFIG_UNIXWARE_DISKLABEL is not set > # CONFIG_LDM_PARTITION is not set > # CONFIG_SGI_PARTITION is not set > # CONFIG_ULTRIX_PARTITION is not set > # CONFIG_SUN_PARTITION is not set > # CONFIG_KARMA_PARTITION is not set > CONFIG_EFI_PARTITION=y > # CONFIG_SYSV68_PARTITION is not set > # CONFIG_CMDLINE_PARTITION is not set > > # > # IO Schedulers > # > CONFIG_IOSCHED_NOOP=y > # CONFIG_IOSCHED_DEADLINE is not set > # CONFIG_IOSCHED_CFQ is not set > CONFIG_DEFAULT_NOOP=y > CONFIG_DEFAULT_IOSCHED="noop" > CONFIG_INLINE_SPIN_UNLOCK_IRQ=y > CONFIG_INLINE_READ_UNLOCK=y > CONFIG_INLINE_READ_UNLOCK_IRQ=y > CONFIG_INLINE_WRITE_UNLOCK=y > CONFIG_INLINE_WRITE_UNLOCK_IRQ=y > # CONFIG_FREEZER is not set > > # > # Processor type and features > # > CONFIG_ZONE_DMA=y > # CONFIG_SMP is not set > CONFIG_X86_MPPARSE=y > # CONFIG_X86_EXTENDED_PLATFORM is not set > # CONFIG_X86_INTEL_LPSS is not set > # CONFIG_SCHED_OMIT_FRAME_POINTER is not set > # CONFIG_HYPERVISOR_GUEST is not set > CONFIG_NO_BOOTMEM=y > # CONFIG_MEMTEST is not set > # CONFIG_MK8 is not set > # CONFIG_MPSC is not set > # CONFIG_MCORE2 is not set > # CONFIG_MATOM is not set > CONFIG_GENERIC_CPU=y > CONFIG_X86_INTERNODE_CACHE_SHIFT=6 > CONFIG_X86_L1_CACHE_SHIFT=6 > CONFIG_X86_TSC=y > CONFIG_X86_CMPXCHG64=y > CONFIG_X86_CMOV=y > CONFIG_X86_MINIMUM_CPU_FAMILY=64 > CONFIG_X86_DEBUGCTLMSR=y > CONFIG_PROCESSOR_SELECT=y > CONFIG_CPU_SUP_INTEL=y > # CONFIG_CPU_SUP_AMD is not set > # CONFIG_CPU_SUP_CENTAUR is not set > CONFIG_HPET_TIMER=y > CONFIG_DMI=y > # CONFIG_CALGARY_IOMMU is not set > CONFIG_SWIOTLB=y > CONFIG_IOMMU_HELPER=y > CONFIG_NR_CPUS=1 > CONFIG_PREEMPT_NONE=y > # CONFIG_PREEMPT_VOLUNTARY is not set > # CONFIG_PREEMPT is not set > CONFIG_X86_LOCAL_APIC=y > CONFIG_X86_IO_APIC=y > # CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS is not set > # CONFIG_X86_MCE is not set > # CONFIG_I8K is not set > # CONFIG_MICROCODE is not set > # CONFIG_MICROCODE_INTEL_EARLY is not set > # CONFIG_MICROCODE_AMD_EARLY is not set > # CONFIG_X86_MSR is not set > # CONFIG_X86_CPUID is not set > CONFIG_ARCH_PHYS_ADDR_T_64BIT=y > CONFIG_ARCH_DMA_ADDR_T_64BIT=y > CONFIG_DIRECT_GBPAGES=y > CONFIG_ARCH_SPARSEMEM_ENABLE=y > CONFIG_ARCH_SPARSEMEM_DEFAULT=y > CONFIG_ARCH_SELECT_MEMORY_MODEL=y > CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000 > CONFIG_SELECT_MEMORY_MODEL=y > CONFIG_SPARSEMEM_MANUAL=y > CONFIG_SPARSEMEM=y > CONFIG_HAVE_MEMORY_PRESENT=y > CONFIG_SPARSEMEM_EXTREME=y > CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y > CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER=y > CONFIG_SPARSEMEM_VMEMMAP=y > CONFIG_HAVE_MEMBLOCK=y > CONFIG_HAVE_MEMBLOCK_NODE_MAP=y > CONFIG_ARCH_DISCARD_MEMBLOCK=y > # CONFIG_HAVE_BOOTMEM_INFO_NODE is not set > # CONFIG_MEMORY_HOTPLUG is not set > CONFIG_PAGEFLAGS_EXTENDED=y > CONFIG_SPLIT_PTLOCK_CPUS=4 > CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y > # CONFIG_COMPACTION is not set > CONFIG_PHYS_ADDR_T_64BIT=y > CONFIG_ZONE_DMA_FLAG=1 > # CONFIG_BOUNCE is not set > CONFIG_VIRT_TO_BUS=y > # CONFIG_KSM is not set > CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 > # CONFIG_TRANSPARENT_HUGEPAGE is not set > # CONFIG_CROSS_MEMORY_ATTACH is not set > CONFIG_NEED_PER_CPU_KM=y > # CONFIG_CLEANCACHE is not set > # CONFIG_CMA is not set > # CONFIG_ZBUD is not set > # CONFIG_ZSMALLOC is not set > # CONFIG_X86_CHECK_BIOS_CORRUPTION is not set > CONFIG_X86_RESERVE_LOW=64 > CONFIG_MTRR=y > CONFIG_MTRR_SANITIZER=y > CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=0 > CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1 > CONFIG_X86_PAT=y > CONFIG_ARCH_USES_PG_UNCACHED=y > # CONFIG_ARCH_RANDOM is not set > CONFIG_X86_SMAP=y > # CONFIG_EFI is not set > # CONFIG_SECCOMP is not set > # CONFIG_HZ_100 is not set > CONFIG_HZ_250=y > # CONFIG_HZ_300 is not set > # CONFIG_HZ_1000 is not set > CONFIG_HZ=250 > # CONFIG_SCHED_HRTICK is not set > # CONFIG_KEXEC is not set > # CONFIG_CRASH_DUMP is not set > CONFIG_PHYSICAL_START=0x1000000 > # CONFIG_RELOCATABLE is not set > CONFIG_PHYSICAL_ALIGN=0x1000000 > # CONFIG_CMDLINE_BOOL is not set > CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y > > # > # Power management and ACPI options > # > # CONFIG_SUSPEND is not set > # CONFIG_PM_RUNTIME is not set > CONFIG_ACPI=y > # CONFIG_ACPI_PROCFS is not set > # CONFIG_ACPI_EC_DEBUGFS is not set > # CONFIG_ACPI_AC is not set > # CONFIG_ACPI_BATTERY is not set > # CONFIG_ACPI_BUTTON is not set > # CONFIG_ACPI_FAN is not set > # CONFIG_ACPI_DOCK is not set > CONFIG_ACPI_PROCESSOR=y > # CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set > CONFIG_ACPI_THERMAL=y > CONFIG_ACPI_CUSTOM_DSDT_FILE="" > # CONFIG_ACPI_CUSTOM_DSDT is not set > # CONFIG_ACPI_INITRD_TABLE_OVERRIDE is not set > # CONFIG_ACPI_DEBUG is not set > # CONFIG_ACPI_PCI_SLOT is not set > CONFIG_X86_PM_TIMER=y > # CONFIG_ACPI_CONTAINER is not set > # CONFIG_ACPI_SBS is not set > # CONFIG_ACPI_HED is not set > # CONFIG_ACPI_APEI is not set > # CONFIG_SFI is not set > > # > # CPU Frequency scaling > # > # CONFIG_CPU_FREQ is not set > > # > # CPU Idle > # > CONFIG_CPU_IDLE=y > # CONFIG_CPU_IDLE_MULTIPLE_DRIVERS is not set > CONFIG_CPU_IDLE_GOV_LADDER=y > CONFIG_CPU_IDLE_GOV_MENU=y > # CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set > # CONFIG_INTEL_IDLE is not set > > # > # Memory power savings > # > # CONFIG_I7300_IDLE is not set > > # > # Bus options (PCI etc.) > # > CONFIG_PCI=y > CONFIG_PCI_DIRECT=y > # CONFIG_PCI_MMCONFIG is not set > CONFIG_PCI_DOMAINS=y > # CONFIG_PCI_CNB20LE_QUIRK is not set > # CONFIG_PCIEPORTBUS is not set > # CONFIG_PCI_MSI is not set > CONFIG_PCI_DEBUG=y > # CONFIG_PCI_REALLOC_ENABLE_AUTO is not set > # CONFIG_PCI_STUB is not set > CONFIG_HT_IRQ=y > # CONFIG_PCI_IOV is not set > # CONFIG_PCI_PRI is not set > # CONFIG_PCI_PASID is not set > # CONFIG_PCI_IOAPIC is not set > CONFIG_PCI_LABEL=y > > # > # PCI host controller drivers > # > CONFIG_ISA_DMA_API=y > # CONFIG_PCCARD is not set > # CONFIG_HOTPLUG_PCI is not set > # CONFIG_RAPIDIO is not set > # CONFIG_X86_SYSFB is not set > > # > # Executable file formats / Emulations > # > CONFIG_BINFMT_ELF=y > CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y > CONFIG_BINFMT_SCRIPT=y > # CONFIG_HAVE_AOUT is not set > # CONFIG_BINFMT_MISC is not set > # CONFIG_COREDUMP is not set > # CONFIG_IA32_EMULATION is not set > CONFIG_X86_DEV_DMA_OPS=y > CONFIG_NET=y > > # > # Networking options > # > # CONFIG_PACKET is not set > CONFIG_UNIX=y > CONFIG_UNIX_DIAG=y > CONFIG_XFRM=y > # CONFIG_XFRM_USER is not set > # CONFIG_XFRM_SUB_POLICY is not set > # CONFIG_XFRM_MIGRATE is not set > # CONFIG_XFRM_STATISTICS is not set > # CONFIG_NET_KEY is not set > CONFIG_INET=y > # CONFIG_IP_MULTICAST is not set > # CONFIG_IP_ADVANCED_ROUTER is not set > # CONFIG_IP_PNP is not set > # CONFIG_NET_IPIP is not set > # CONFIG_NET_IPGRE_DEMUX is not set > CONFIG_NET_IP_TUNNEL=y > # CONFIG_SYN_COOKIES is not set > # CONFIG_NET_IPVTI is not set > # CONFIG_INET_AH is not set > # CONFIG_INET_ESP is not set > # CONFIG_INET_IPCOMP is not set > # CONFIG_INET_XFRM_TUNNEL is not set > CONFIG_INET_TUNNEL=y > CONFIG_INET_XFRM_MODE_TRANSPORT=y > CONFIG_INET_XFRM_MODE_TUNNEL=y > CONFIG_INET_XFRM_MODE_BEET=y > CONFIG_INET_LRO=y > CONFIG_INET_DIAG=y > CONFIG_INET_TCP_DIAG=y > # CONFIG_INET_UDP_DIAG is not set > # CONFIG_TCP_CONG_ADVANCED is not set > CONFIG_TCP_CONG_CUBIC=y > CONFIG_DEFAULT_TCP_CONG="cubic" > # CONFIG_TCP_MD5SIG is not set > CONFIG_IPV6=y > # CONFIG_IPV6_ROUTER_PREF is not set > # CONFIG_IPV6_OPTIMISTIC_DAD is not set > # CONFIG_INET6_AH is not set > # CONFIG_INET6_ESP is not set > # CONFIG_INET6_IPCOMP is not set > # CONFIG_IPV6_MIP6 is not set > # CONFIG_INET6_XFRM_TUNNEL is not set > # CONFIG_INET6_TUNNEL is not set > CONFIG_INET6_XFRM_MODE_TRANSPORT=y > CONFIG_INET6_XFRM_MODE_TUNNEL=y > CONFIG_INET6_XFRM_MODE_BEET=y > # CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set > # CONFIG_IPV6_VTI is not set > CONFIG_IPV6_SIT=y > # CONFIG_IPV6_SIT_6RD is not set > CONFIG_IPV6_NDISC_NODETYPE=y > # CONFIG_IPV6_TUNNEL is not set > # CONFIG_IPV6_GRE is not set > # CONFIG_IPV6_MULTIPLE_TABLES is not set > # CONFIG_IPV6_MROUTE is not set > # CONFIG_NETWORK_SECMARK is not set > # CONFIG_NETWORK_PHY_TIMESTAMPING is not set > # CONFIG_NETFILTER is not set > # CONFIG_IP_DCCP is not set > # CONFIG_IP_SCTP is not set > # CONFIG_RDS is not set > # CONFIG_TIPC is not set > # CONFIG_ATM is not set > # CONFIG_L2TP is not set > # CONFIG_BRIDGE is not set > CONFIG_HAVE_NET_DSA=y > # CONFIG_VLAN_8021Q is not set > # CONFIG_DECNET is not set > # CONFIG_LLC2 is not set > # CONFIG_IPX is not set > # CONFIG_ATALK is not set > # CONFIG_X25 is not set > # CONFIG_LAPB is not set > # CONFIG_PHONET is not set > # CONFIG_IEEE802154 is not set > # CONFIG_NET_SCHED is not set > # CONFIG_DCB is not set > # CONFIG_BATMAN_ADV is not set > # CONFIG_OPENVSWITCH is not set > # CONFIG_VSOCKETS is not set > # CONFIG_NETLINK_MMAP is not set > # CONFIG_NETLINK_DIAG is not set > # CONFIG_NET_MPLS_GSO is not set > # CONFIG_HSR is not set > CONFIG_NET_RX_BUSY_POLL=y > CONFIG_BQL=y > > # > # Network testing > # > # CONFIG_NET_PKTGEN is not set > # CONFIG_HAMRADIO is not set > # CONFIG_CAN is not set > # CONFIG_IRDA is not set > # CONFIG_BT is not set > # CONFIG_AF_RXRPC is not set > # CONFIG_WIRELESS is not set > # CONFIG_WIMAX is not set > # CONFIG_RFKILL is not set > # CONFIG_NET_9P is not set > # CONFIG_CAIF is not set > # CONFIG_CEPH_LIB is not set > # CONFIG_NFC is not set > CONFIG_HAVE_BPF_JIT=y > > # > # Device Drivers > # > > # > # Generic Driver Options > # > CONFIG_UEVENT_HELPER_PATH="" > CONFIG_DEVTMPFS=y > CONFIG_DEVTMPFS_MOUNT=y > # CONFIG_STANDALONE is not set > # CONFIG_PREVENT_FIRMWARE_BUILD is not set > CONFIG_FW_LOADER=y > # CONFIG_FIRMWARE_IN_KERNEL is not set > CONFIG_EXTRA_FIRMWARE="" > # CONFIG_FW_LOADER_USER_HELPER is not set > # CONFIG_DEBUG_DRIVER is not set > # CONFIG_DEBUG_DEVRES is not set > # CONFIG_SYS_HYPERVISOR is not set > # CONFIG_GENERIC_CPU_DEVICES is not set > # CONFIG_DMA_SHARED_BUFFER is not set > > # > # Bus devices > # > # CONFIG_CONNECTOR is not set > # CONFIG_MTD is not set > # CONFIG_PARPORT is not set > CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y > CONFIG_PNP=y > CONFIG_PNP_DEBUG_MESSAGES=y > > # > # Protocols > # > CONFIG_PNPACPI=y > CONFIG_BLK_DEV=y > # CONFIG_BLK_DEV_NULL_BLK is not set > # CONFIG_BLK_DEV_FD is not set > # CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set > # CONFIG_BLK_CPQ_CISS_DA is not set > # CONFIG_BLK_DEV_DAC960 is not set > # CONFIG_BLK_DEV_UMEM is not set > # CONFIG_BLK_DEV_COW_COMMON is not set > CONFIG_BLK_DEV_LOOP=y > CONFIG_BLK_DEV_LOOP_MIN_COUNT=8 > # CONFIG_BLK_DEV_CRYPTOLOOP is not set > # CONFIG_BLK_DEV_DRBD is not set > # CONFIG_BLK_DEV_NBD is not set > # CONFIG_BLK_DEV_NVME is not set > # CONFIG_BLK_DEV_SKD is not set > # CONFIG_BLK_DEV_SX8 is not set > # CONFIG_BLK_DEV_RAM is not set > # CONFIG_CDROM_PKTCDVD is not set > # CONFIG_ATA_OVER_ETH is not set > CONFIG_VIRTIO_BLK=y > # CONFIG_BLK_DEV_HD is not set > # CONFIG_BLK_DEV_RBD is not set > # CONFIG_BLK_DEV_RSXX is not set > > # > # Misc devices > # > # CONFIG_SENSORS_LIS3LV02D is not set > # CONFIG_DUMMY_IRQ is not set > # CONFIG_IBM_ASM is not set > # CONFIG_PHANTOM is not set > # CONFIG_SGI_IOC4 is not set > # CONFIG_TIFM_CORE is not set > # CONFIG_ATMEL_SSC is not set > # CONFIG_ENCLOSURE_SERVICES is not set > # CONFIG_HP_ILO is not set > # CONFIG_PCH_PHUB is not set > # CONFIG_SRAM is not set > # CONFIG_C2PORT is not set > > # > # EEPROM support > # > CONFIG_EEPROM_93CX6=y > # CONFIG_CB710_CORE is not set > > # > # Texas Instruments shared transport line discipline > # > > # > # Altera FPGA firmware download module > # > # CONFIG_VMWARE_VMCI is not set > > # > # Intel MIC Host Driver > # > # CONFIG_INTEL_MIC_HOST is not set > > # > # Intel MIC Card Driver > # > # CONFIG_INTEL_MIC_CARD is not set > # CONFIG_GENWQE is not set > CONFIG_HAVE_IDE=y > # CONFIG_IDE is not set > > # > # SCSI device support > # > CONFIG_SCSI_MOD=y > # CONFIG_RAID_ATTRS is not set > # CONFIG_SCSI is not set > # CONFIG_SCSI_DMA is not set > # CONFIG_SCSI_NETLINK is not set > # CONFIG_ATA is not set > # CONFIG_MD is not set > # CONFIG_FUSION is not set > > # > # IEEE 1394 (FireWire) support > # > # CONFIG_FIREWIRE is not set > # CONFIG_FIREWIRE_NOSY is not set > # CONFIG_I2O is not set > # CONFIG_MACINTOSH_DRIVERS is not set > CONFIG_NETDEVICES=y > CONFIG_NET_CORE=y > # CONFIG_BONDING is not set > # CONFIG_DUMMY is not set > # CONFIG_EQUALIZER is not set > # CONFIG_NET_TEAM is not set > # CONFIG_MACVLAN is not set > # CONFIG_VXLAN is not set > # CONFIG_NETCONSOLE is not set > # CONFIG_NETPOLL is not set > # CONFIG_NET_POLL_CONTROLLER is not set > # CONFIG_TUN is not set > # CONFIG_VETH is not set > CONFIG_VIRTIO_NET=y > # CONFIG_NLMON is not set > # CONFIG_ARCNET is not set > > # > # CAIF transport drivers > # > > # > # Distributed Switch Architecture drivers > # > # CONFIG_NET_DSA_MV88E6XXX is not set > # CONFIG_NET_DSA_MV88E6060 is not set > # CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set > # CONFIG_NET_DSA_MV88E6131 is not set > # CONFIG_NET_DSA_MV88E6123_61_65 is not set > CONFIG_ETHERNET=y > # CONFIG_NET_VENDOR_3COM is not set > # CONFIG_NET_VENDOR_ADAPTEC is not set > # CONFIG_NET_VENDOR_ALTEON is not set > # CONFIG_NET_VENDOR_AMD is not set > # CONFIG_NET_VENDOR_ARC is not set > # CONFIG_NET_VENDOR_ATHEROS is not set > # CONFIG_NET_CADENCE is not set > # CONFIG_NET_VENDOR_BROADCOM is not set > # CONFIG_NET_VENDOR_BROCADE is not set > # CONFIG_NET_CALXEDA_XGMAC is not set > # CONFIG_NET_VENDOR_CHELSIO is not set > # CONFIG_NET_VENDOR_CISCO is not set > # CONFIG_DNET is not set > # CONFIG_NET_VENDOR_DEC is not set > # CONFIG_NET_VENDOR_DLINK is not set > # CONFIG_NET_VENDOR_EMULEX is not set > # CONFIG_NET_VENDOR_EXAR is not set > # CONFIG_NET_VENDOR_HP is not set > CONFIG_NET_VENDOR_INTEL=y > # CONFIG_E100 is not set > CONFIG_E1000=y > # CONFIG_E1000E is not set > # CONFIG_IGB is not set > # CONFIG_IGBVF is not set > # CONFIG_IXGB is not set > # CONFIG_IXGBE is not set > # CONFIG_I40E is not set > # CONFIG_NET_VENDOR_I825XX is not set > # CONFIG_IP1000 is not set > # CONFIG_JME is not set > # CONFIG_NET_VENDOR_MARVELL is not set > # CONFIG_NET_VENDOR_MELLANOX is not set > # CONFIG_NET_VENDOR_MICREL is not set > CONFIG_NET_VENDOR_MYRI=y > # CONFIG_MYRI10GE is not set > # CONFIG_FEALNX is not set > # CONFIG_NET_VENDOR_NATSEMI is not set > # CONFIG_NET_VENDOR_NVIDIA is not set > # CONFIG_NET_VENDOR_OKI is not set > # CONFIG_ETHOC is not set > # CONFIG_NET_PACKET_ENGINE is not set > # CONFIG_NET_VENDOR_QLOGIC is not set > # CONFIG_NET_VENDOR_REALTEK is not set > # CONFIG_SH_ETH is not set > # CONFIG_NET_VENDOR_RDC is not set > # CONFIG_NET_VENDOR_SEEQ is not set > # CONFIG_NET_VENDOR_SILAN is not set > # CONFIG_NET_VENDOR_SIS is not set > # CONFIG_SFC is not set > # CONFIG_NET_VENDOR_SMSC is not set > # CONFIG_NET_VENDOR_STMICRO is not set > # CONFIG_NET_VENDOR_SUN is not set > # CONFIG_NET_VENDOR_TEHUTI is not set > # CONFIG_NET_VENDOR_TI is not set > # CONFIG_NET_VENDOR_VIA is not set > # CONFIG_NET_VENDOR_WIZNET is not set > # CONFIG_FDDI is not set > # CONFIG_HIPPI is not set > # CONFIG_NET_SB1000 is not set > # CONFIG_PHYLIB is not set > # CONFIG_PPP is not set > # CONFIG_SLIP is not set > # CONFIG_WLAN is not set > > # > # Enable WiMAX (Networking options) to see the WiMAX drivers > # > # CONFIG_WAN is not set > # CONFIG_VMXNET3 is not set > # CONFIG_ISDN is not set > > # > # Input device support > # > CONFIG_INPUT=y > # CONFIG_INPUT_FF_MEMLESS is not set > # CONFIG_INPUT_POLLDEV is not set > # CONFIG_INPUT_SPARSEKMAP is not set > # CONFIG_INPUT_MATRIXKMAP is not set > > # > # Userland interfaces > # > CONFIG_INPUT_MOUSEDEV=y > # CONFIG_INPUT_MOUSEDEV_PSAUX is not set > CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 > CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 > # CONFIG_INPUT_JOYDEV is not set > # CONFIG_INPUT_EVDEV is not set > # CONFIG_INPUT_EVBUG is not set > > # > # Input Device Drivers > # > CONFIG_INPUT_KEYBOARD=y > CONFIG_KEYBOARD_ATKBD=y > # CONFIG_KEYBOARD_LKKBD is not set > # CONFIG_KEYBOARD_NEWTON is not set > # CONFIG_KEYBOARD_OPENCORES is not set > # CONFIG_KEYBOARD_STOWAWAY is not set > # CONFIG_KEYBOARD_SUNKBD is not set > # CONFIG_KEYBOARD_XTKBD is not set > # CONFIG_INPUT_MOUSE is not set > # CONFIG_INPUT_JOYSTICK is not set > # CONFIG_INPUT_TABLET is not set > # CONFIG_INPUT_TOUCHSCREEN is not set > # CONFIG_INPUT_MISC is not set > > # > # Hardware I/O ports > # > CONFIG_SERIO=y > CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y > CONFIG_SERIO_I8042=y > # CONFIG_SERIO_SERPORT is not set > # CONFIG_SERIO_CT82C710 is not set > # CONFIG_SERIO_PCIPS2 is not set > CONFIG_SERIO_LIBPS2=y > # CONFIG_SERIO_RAW is not set > # CONFIG_SERIO_ALTERA_PS2 is not set > # CONFIG_SERIO_PS2MULT is not set > # CONFIG_SERIO_ARC_PS2 is not set > # CONFIG_GAMEPORT is not set > > # > # Character devices > # > CONFIG_TTY=y > CONFIG_VT=y > CONFIG_CONSOLE_TRANSLATIONS=y > CONFIG_VT_CONSOLE=y > CONFIG_HW_CONSOLE=y > # CONFIG_VT_HW_CONSOLE_BINDING is not set > CONFIG_UNIX98_PTYS=y > # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set > # CONFIG_LEGACY_PTYS is not set > # CONFIG_SERIAL_NONSTANDARD is not set > # CONFIG_NOZOMI is not set > # CONFIG_N_GSM is not set > # CONFIG_TRACE_SINK is not set > # CONFIG_DEVKMEM is not set > > # > # Serial drivers > # > CONFIG_SERIAL_8250=y > # CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set > CONFIG_SERIAL_8250_PNP=y > CONFIG_SERIAL_8250_CONSOLE=y > CONFIG_FIX_EARLYCON_MEM=y > # CONFIG_SERIAL_8250_PCI is not set > CONFIG_SERIAL_8250_NR_UARTS=4 > CONFIG_SERIAL_8250_RUNTIME_UARTS=4 > # CONFIG_SERIAL_8250_EXTENDED is not set > # CONFIG_SERIAL_8250_DW is not set > > # > # Non-8250 serial port support > # > # CONFIG_SERIAL_MFD_HSU is not set > CONFIG_SERIAL_CORE=y > CONFIG_SERIAL_CORE_CONSOLE=y > # CONFIG_SERIAL_JSM is not set > # CONFIG_SERIAL_SCCNXP is not set > # CONFIG_SERIAL_TIMBERDALE is not set > # CONFIG_SERIAL_ALTERA_JTAGUART is not set > # CONFIG_SERIAL_ALTERA_UART is not set > # CONFIG_SERIAL_PCH_UART is not set > # CONFIG_SERIAL_ARC is not set > # CONFIG_SERIAL_RP2 is not set > # CONFIG_SERIAL_FSL_LPUART is not set > # CONFIG_TTY_PRINTK is not set > # CONFIG_VIRTIO_CONSOLE is not set > # CONFIG_IPMI_HANDLER is not set > # CONFIG_HW_RANDOM is not set > # CONFIG_NVRAM is not set > # CONFIG_R3964 is not set > # CONFIG_APPLICOM is not set > # CONFIG_MWAVE is not set > # CONFIG_RAW_DRIVER is not set > # CONFIG_HPET is not set > # CONFIG_HANGCHECK_TIMER is not set > # CONFIG_TCG_TPM is not set > # CONFIG_TELCLOCK is not set > CONFIG_DEVPORT=y > # CONFIG_I2C is not set > # CONFIG_SPI is not set > # CONFIG_HSI is not set > > # > # PPS support > # > # CONFIG_PPS is not set > > # > # PPS generators support > # > > # > # PTP clock support > # > # CONFIG_PTP_1588_CLOCK is not set > > # > # Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks. > # > # CONFIG_PTP_1588_CLOCK_PCH is not set > CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y > # CONFIG_GPIOLIB is not set > # CONFIG_W1 is not set > # CONFIG_POWER_SUPPLY is not set > # CONFIG_POWER_AVS is not set > # CONFIG_HWMON is not set > CONFIG_THERMAL=y > CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y > # CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set > # CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set > # CONFIG_THERMAL_GOV_FAIR_SHARE is not set > CONFIG_THERMAL_GOV_STEP_WISE=y > # CONFIG_THERMAL_GOV_USER_SPACE is not set > # CONFIG_THERMAL_EMULATION is not set > # CONFIG_INTEL_POWERCLAMP is not set > # CONFIG_ACPI_INT3403_THERMAL is not set > > # > # Texas Instruments thermal drivers > # > # CONFIG_WATCHDOG is not set > CONFIG_SSB_POSSIBLE=y > > # > # Sonics Silicon Backplane > # > # CONFIG_SSB is not set > CONFIG_BCMA_POSSIBLE=y > > # > # Broadcom specific AMBA > # > # CONFIG_BCMA is not set > > # > # Multifunction device drivers > # > # CONFIG_MFD_CORE is not set > # CONFIG_MFD_CS5535 is not set > # CONFIG_MFD_CROS_EC is not set > # CONFIG_HTC_PASIC3 is not set > # CONFIG_LPC_ICH is not set > # CONFIG_LPC_SCH is not set > # CONFIG_MFD_JANZ_CMODIO is not set > # CONFIG_MFD_KEMPLD is not set > # CONFIG_MFD_RDC321X is not set > # CONFIG_MFD_RTSX_PCI is not set > # CONFIG_MFD_SM501 is not set > # CONFIG_ABX500_CORE is not set > # CONFIG_MFD_SYSCON is not set > # CONFIG_MFD_TI_AM335X_TSCADC is not set > # CONFIG_MFD_TMIO is not set > # CONFIG_MFD_VX855 is not set > # CONFIG_REGULATOR is not set > # CONFIG_MEDIA_SUPPORT is not set > > # > # Graphics support > # > # CONFIG_AGP is not set > CONFIG_VGA_ARB=y > CONFIG_VGA_ARB_MAX_GPUS=16 > # CONFIG_VGA_SWITCHEROO is not set > # CONFIG_DRM is not set > # CONFIG_VGASTATE is not set > # CONFIG_VIDEO_OUTPUT_CONTROL is not set > CONFIG_FB=y > # CONFIG_FIRMWARE_EDID is not set > # CONFIG_FB_DDC is not set > CONFIG_FB_BOOT_VESA_SUPPORT=y > CONFIG_FB_CFB_FILLRECT=y > CONFIG_FB_CFB_COPYAREA=y > CONFIG_FB_CFB_IMAGEBLIT=y > # CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set > # CONFIG_FB_SYS_FILLRECT is not set > # CONFIG_FB_SYS_COPYAREA is not set > # CONFIG_FB_SYS_IMAGEBLIT is not set > # CONFIG_FB_FOREIGN_ENDIAN is not set > # CONFIG_FB_SYS_FOPS is not set > # CONFIG_FB_SVGALIB is not set > # CONFIG_FB_MACMODES is not set > # CONFIG_FB_BACKLIGHT is not set > # CONFIG_FB_MODE_HELPERS is not set > # CONFIG_FB_TILEBLITTING is not set > > # > # Frame buffer hardware drivers > # > # CONFIG_FB_CIRRUS is not set > # CONFIG_FB_PM2 is not set > # CONFIG_FB_CYBER2000 is not set > # CONFIG_FB_ARC is not set > # CONFIG_FB_ASILIANT is not set > # CONFIG_FB_IMSTT is not set > # CONFIG_FB_VGA16 is not set > CONFIG_FB_VESA=y > # CONFIG_FB_N411 is not set > # CONFIG_FB_HGA is not set > # CONFIG_FB_OPENCORES is not set > # CONFIG_FB_S1D13XXX is not set > # CONFIG_FB_NVIDIA is not set > # CONFIG_FB_RIVA is not set > # CONFIG_FB_I740 is not set > # CONFIG_FB_LE80578 is not set > # CONFIG_FB_MATROX is not set > # CONFIG_FB_RADEON is not set > # CONFIG_FB_ATY128 is not set > # CONFIG_FB_ATY is not set > # CONFIG_FB_S3 is not set > # CONFIG_FB_SAVAGE is not set > # CONFIG_FB_SIS is not set > # CONFIG_FB_VIA is not set > # CONFIG_FB_NEOMAGIC is not set > # CONFIG_FB_KYRO is not set > # CONFIG_FB_3DFX is not set > # CONFIG_FB_VOODOO1 is not set > # CONFIG_FB_VT8623 is not set > # CONFIG_FB_TRIDENT is not set > # CONFIG_FB_ARK is not set > # CONFIG_FB_PM3 is not set > # CONFIG_FB_CARMINE is not set > # CONFIG_FB_GOLDFISH is not set > # CONFIG_FB_VIRTUAL is not set > # CONFIG_FB_METRONOME is not set > # CONFIG_FB_MB862XX is not set > # CONFIG_FB_BROADSHEET is not set > # CONFIG_FB_AUO_K190X is not set > # CONFIG_FB_SIMPLE is not set > # CONFIG_EXYNOS_VIDEO is not set > # CONFIG_BACKLIGHT_LCD_SUPPORT is not set > > # > # Console display driver support > # > CONFIG_VGA_CONSOLE=y > # CONFIG_VGACON_SOFT_SCROLLBACK is not set > CONFIG_DUMMY_CONSOLE=y > # CONFIG_FRAMEBUFFER_CONSOLE is not set > CONFIG_LOGO=y > CONFIG_LOGO_LINUX_MONO=y > CONFIG_LOGO_LINUX_VGA16=y > CONFIG_LOGO_LINUX_CLUT224=y > # CONFIG_SOUND is not set > > # > # HID support > # > # CONFIG_HID is not set > CONFIG_USB_OHCI_LITTLE_ENDIAN=y > # CONFIG_USB_SUPPORT is not set > # CONFIG_UWB is not set > # CONFIG_MMC is not set > # CONFIG_MEMSTICK is not set > # CONFIG_NEW_LEDS is not set > # CONFIG_ACCESSIBILITY is not set > # CONFIG_INFINIBAND is not set > # CONFIG_EDAC is not set > CONFIG_RTC_LIB=y > # CONFIG_RTC_CLASS is not set > # CONFIG_DMADEVICES is not set > # CONFIG_AUXDISPLAY is not set > # CONFIG_UIO is not set > # CONFIG_VIRT_DRIVERS is not set > CONFIG_VIRTIO=y > > # > # Virtio drivers > # > CONFIG_VIRTIO_PCI=y > # CONFIG_VIRTIO_BALLOON is not set > # CONFIG_VIRTIO_MMIO is not set > > # > # Microsoft Hyper-V guest support > # > # CONFIG_STAGING is not set > # CONFIG_X86_PLATFORM_DEVICES is not set > # CONFIG_CHROME_PLATFORMS is not set > > # > # Hardware Spinlock drivers > # > CONFIG_CLKEVT_I8253=y > CONFIG_I8253_LOCK=y > CONFIG_CLKBLD_I8253=y > # CONFIG_MAILBOX is not set > # CONFIG_IOMMU_SUPPORT is not set > > # > # Remoteproc drivers > # > # CONFIG_STE_MODEM_RPROC is not set > > # > # Rpmsg drivers > # > # CONFIG_PM_DEVFREQ is not set > # CONFIG_EXTCON is not set > # CONFIG_MEMORY is not set > # CONFIG_IIO is not set > # CONFIG_NTB is not set > # CONFIG_VME_BUS is not set > # CONFIG_PWM is not set > # CONFIG_IPACK_BUS is not set > # CONFIG_RESET_CONTROLLER is not set > # CONFIG_FMC is not set > > # > # PHY Subsystem > # > # CONFIG_GENERIC_PHY is not set > # CONFIG_PHY_EXYNOS_MIPI_VIDEO is not set > # CONFIG_POWERCAP is not set > > # > # Firmware Drivers > # > # CONFIG_EDD is not set > CONFIG_FIRMWARE_MEMMAP=y > # CONFIG_DELL_RBU is not set > # CONFIG_DCDBAS is not set > # CONFIG_DMIID is not set > # CONFIG_DMI_SYSFS is not set > CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y > # CONFIG_ISCSI_IBFT_FIND is not set > # CONFIG_GOOGLE_FIRMWARE is not set > > # > # File systems > # > CONFIG_DCACHE_WORD_ACCESS=y > # CONFIG_EXT2_FS is not set > # CONFIG_EXT3_FS is not set > # CONFIG_EXT4_FS is not set > # CONFIG_REISERFS_FS is not set > # CONFIG_JFS_FS is not set > # CONFIG_XFS_FS is not set > # CONFIG_GFS2_FS is not set > # CONFIG_BTRFS_FS is not set > # CONFIG_NILFS2_FS is not set > # CONFIG_FS_POSIX_ACL is not set > CONFIG_FILE_LOCKING=y > # CONFIG_FSNOTIFY is not set > # CONFIG_DNOTIFY is not set > # CONFIG_INOTIFY_USER is not set > # CONFIG_FANOTIFY is not set > # CONFIG_QUOTA is not set > # CONFIG_QUOTACTL is not set > # CONFIG_AUTOFS4_FS is not set > # CONFIG_FUSE_FS is not set > > # > # Caches > # > # CONFIG_FSCACHE is not set > > # > # CD-ROM/DVD Filesystems > # > # CONFIG_ISO9660_FS is not set > # CONFIG_UDF_FS is not set > > # > # DOS/FAT/NT Filesystems > # > # CONFIG_MSDOS_FS is not set > # CONFIG_VFAT_FS is not set > # CONFIG_NTFS_FS is not set > > # > # Pseudo filesystems > # > CONFIG_PROC_FS=y > # CONFIG_PROC_KCORE is not set > CONFIG_PROC_SYSCTL=y > CONFIG_PROC_PAGE_MONITOR=y > CONFIG_SYSFS=y > CONFIG_TMPFS=y > # CONFIG_TMPFS_POSIX_ACL is not set > # CONFIG_TMPFS_XATTR is not set > # CONFIG_HUGETLBFS is not set > # CONFIG_HUGETLB_PAGE is not set > # CONFIG_CONFIGFS_FS is not set > # CONFIG_MISC_FILESYSTEMS is not set > # CONFIG_NETWORK_FILESYSTEMS is not set > CONFIG_NLS=y > CONFIG_NLS_DEFAULT="iso8859-1" > # CONFIG_NLS_CODEPAGE_437 is not set > # CONFIG_NLS_CODEPAGE_737 is not set > # CONFIG_NLS_CODEPAGE_775 is not set > # CONFIG_NLS_CODEPAGE_850 is not set > # CONFIG_NLS_CODEPAGE_852 is not set > # CONFIG_NLS_CODEPAGE_855 is not set > # CONFIG_NLS_CODEPAGE_857 is not set > # CONFIG_NLS_CODEPAGE_860 is not set > # CONFIG_NLS_CODEPAGE_861 is not set > # CONFIG_NLS_CODEPAGE_862 is not set > # CONFIG_NLS_CODEPAGE_863 is not set > # CONFIG_NLS_CODEPAGE_864 is not set > # CONFIG_NLS_CODEPAGE_865 is not set > # CONFIG_NLS_CODEPAGE_866 is not set > # CONFIG_NLS_CODEPAGE_869 is not set > # CONFIG_NLS_CODEPAGE_936 is not set > # CONFIG_NLS_CODEPAGE_950 is not set > # CONFIG_NLS_CODEPAGE_932 is not set > # CONFIG_NLS_CODEPAGE_949 is not set > # CONFIG_NLS_CODEPAGE_874 is not set > # CONFIG_NLS_ISO8859_8 is not set > # CONFIG_NLS_CODEPAGE_1250 is not set > # CONFIG_NLS_CODEPAGE_1251 is not set > # CONFIG_NLS_ASCII is not set > # CONFIG_NLS_ISO8859_1 is not set > # CONFIG_NLS_ISO8859_2 is not set > # CONFIG_NLS_ISO8859_3 is not set > # CONFIG_NLS_ISO8859_4 is not set > # CONFIG_NLS_ISO8859_5 is not set > # CONFIG_NLS_ISO8859_6 is not set > # CONFIG_NLS_ISO8859_7 is not set > # CONFIG_NLS_ISO8859_9 is not set > # CONFIG_NLS_ISO8859_13 is not set > # CONFIG_NLS_ISO8859_14 is not set > # CONFIG_NLS_ISO8859_15 is not set > # CONFIG_NLS_KOI8_R is not set > # CONFIG_NLS_KOI8_U is not set > # CONFIG_NLS_MAC_ROMAN is not set > # CONFIG_NLS_MAC_CELTIC is not set > # CONFIG_NLS_MAC_CENTEURO is not set > # CONFIG_NLS_MAC_CROATIAN is not set > # CONFIG_NLS_MAC_CYRILLIC is not set > # CONFIG_NLS_MAC_GAELIC is not set > # CONFIG_NLS_MAC_GREEK is not set > # CONFIG_NLS_MAC_ICELAND is not set > # CONFIG_NLS_MAC_INUIT is not set > # CONFIG_NLS_MAC_ROMANIAN is not set > # CONFIG_NLS_MAC_TURKISH is not set > # CONFIG_NLS_UTF8 is not set > > # > # Kernel hacking > # > CONFIG_TRACE_IRQFLAGS_SUPPORT=y > > # > # printk and dmesg options > # > CONFIG_PRINTK_TIME=y > CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4 > # CONFIG_BOOT_PRINTK_DELAY is not set > > # > # Compile-time checks and compiler options > # > # CONFIG_DEBUG_INFO is not set > # CONFIG_ENABLE_WARN_DEPRECATED is not set > # CONFIG_ENABLE_MUST_CHECK is not set > CONFIG_FRAME_WARN=1024 > # CONFIG_STRIP_ASM_SYMS is not set > # CONFIG_READABLE_ASM is not set > # CONFIG_UNUSED_SYMBOLS is not set > # CONFIG_DEBUG_FS is not set > # CONFIG_HEADERS_CHECK is not set > CONFIG_DEBUG_SECTION_MISMATCH=y > CONFIG_ARCH_WANT_FRAME_POINTERS=y > # CONFIG_FRAME_POINTER is not set > # CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set > # CONFIG_MAGIC_SYSRQ is not set > CONFIG_DEBUG_KERNEL=y > > # > # Memory Debugging > # > # CONFIG_DEBUG_PAGEALLOC is not set > # CONFIG_DEBUG_OBJECTS is not set > # CONFIG_SLUB_DEBUG_ON is not set > # CONFIG_SLUB_STATS is not set > CONFIG_HAVE_DEBUG_KMEMLEAK=y > # CONFIG_DEBUG_KMEMLEAK is not set > # CONFIG_DEBUG_STACK_USAGE is not set > # CONFIG_DEBUG_VM is not set > # CONFIG_DEBUG_VIRTUAL is not set > # CONFIG_DEBUG_MEMORY_INIT is not set > CONFIG_HAVE_DEBUG_STACKOVERFLOW=y > # CONFIG_DEBUG_STACKOVERFLOW is not set > CONFIG_HAVE_ARCH_KMEMCHECK=y > # CONFIG_KMEMCHECK is not set > # CONFIG_DEBUG_SHIRQ is not set > > # > # Debug Lockups and Hangs > # > # CONFIG_LOCKUP_DETECTOR is not set > # CONFIG_DETECT_HUNG_TASK is not set > # CONFIG_PANIC_ON_OOPS is not set > CONFIG_PANIC_ON_OOPS_VALUE=0 > CONFIG_PANIC_TIMEOUT=0 > CONFIG_SCHED_DEBUG=y > # CONFIG_SCHEDSTATS is not set > # CONFIG_TIMER_STATS is not set > > # > # Lock Debugging (spinlocks, mutexes, etc...) > # > # CONFIG_DEBUG_RT_MUTEXES is not set > # CONFIG_RT_MUTEX_TESTER is not set > # CONFIG_DEBUG_SPINLOCK is not set > # CONFIG_DEBUG_MUTEXES is not set > # CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set > # CONFIG_DEBUG_LOCK_ALLOC is not set > # CONFIG_PROVE_LOCKING is not set > # CONFIG_LOCK_STAT is not set > # CONFIG_DEBUG_ATOMIC_SLEEP is not set > # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set > # CONFIG_DEBUG_KOBJECT is not set > CONFIG_DEBUG_BUGVERBOSE=y > # CONFIG_DEBUG_WRITECOUNT is not set > # CONFIG_DEBUG_LIST is not set > # CONFIG_DEBUG_SG is not set > # CONFIG_DEBUG_NOTIFIERS is not set > # CONFIG_DEBUG_CREDENTIALS is not set > > # > # RCU Debugging > # > # CONFIG_SPARSE_RCU_POINTER is not set > # CONFIG_RCU_TORTURE_TEST is not set > # CONFIG_RCU_TRACE is not set > # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set > # CONFIG_NOTIFIER_ERROR_INJECTION is not set > # CONFIG_FAULT_INJECTION is not set > # CONFIG_LATENCYTOP is not set > CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS=y > # CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set > CONFIG_USER_STACKTRACE_SUPPORT=y > CONFIG_HAVE_FUNCTION_TRACER=y > CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y > CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST=y > CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y > CONFIG_HAVE_DYNAMIC_FTRACE=y > CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y > CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y > CONFIG_HAVE_SYSCALL_TRACEPOINTS=y > CONFIG_HAVE_FENTRY=y > CONFIG_HAVE_C_RECORDMCOUNT=y > CONFIG_TRACING_SUPPORT=y > # CONFIG_FTRACE is not set > > # > # Runtime Testing > # > # CONFIG_TEST_LIST_SORT is not set > # CONFIG_BACKTRACE_SELF_TEST is not set > # CONFIG_RBTREE_TEST is not set > # CONFIG_ATOMIC64_SELFTEST is not set > # CONFIG_TEST_STRING_HELPERS is not set > # CONFIG_TEST_KSTRTOX is not set > # CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set > # CONFIG_DMA_API_DEBUG is not set > # CONFIG_SAMPLES is not set > CONFIG_HAVE_ARCH_KGDB=y > # CONFIG_KGDB is not set > # CONFIG_STRICT_DEVMEM is not set > CONFIG_X86_VERBOSE_BOOTUP=y > CONFIG_EARLY_PRINTK=y > # CONFIG_EARLY_PRINTK_DBGP is not set > # CONFIG_X86_PTDUMP is not set > CONFIG_DEBUG_RODATA=y > CONFIG_DEBUG_RODATA_TEST=y > CONFIG_DOUBLEFAULT=y > # CONFIG_DEBUG_TLBFLUSH is not set > # CONFIG_IOMMU_STRESS is not set > CONFIG_HAVE_MMIOTRACE_SUPPORT=y > CONFIG_IO_DELAY_TYPE_0X80=0 > CONFIG_IO_DELAY_TYPE_0XED=1 > CONFIG_IO_DELAY_TYPE_UDELAY=2 > CONFIG_IO_DELAY_TYPE_NONE=3 > CONFIG_IO_DELAY_0X80=y > # CONFIG_IO_DELAY_0XED is not set > # CONFIG_IO_DELAY_UDELAY is not set > # CONFIG_IO_DELAY_NONE is not set > CONFIG_DEFAULT_IO_DELAY_TYPE=0 > # CONFIG_CPA_DEBUG is not set > # CONFIG_OPTIMIZE_INLINING is not set > # CONFIG_DEBUG_NMI_SELFTEST is not set > # CONFIG_X86_DEBUG_STATIC_CPU_HAS is not set > > # > # Security options > # > # CONFIG_KEYS is not set > # CONFIG_SECURITY_DMESG_RESTRICT is not set > # CONFIG_SECURITY is not set > # CONFIG_SECURITYFS is not set > CONFIG_DEFAULT_SECURITY_DAC=y > CONFIG_DEFAULT_SECURITY="" > CONFIG_CRYPTO=y > > # > # Crypto core or helper > # > CONFIG_CRYPTO_ALGAPI=y > CONFIG_CRYPTO_ALGAPI2=y > CONFIG_CRYPTO_AEAD2=y > CONFIG_CRYPTO_BLKCIPHER=y > CONFIG_CRYPTO_BLKCIPHER2=y > CONFIG_CRYPTO_HASH2=y > CONFIG_CRYPTO_RNG=y > CONFIG_CRYPTO_RNG2=y > CONFIG_CRYPTO_PCOMP2=y > CONFIG_CRYPTO_MANAGER=y > CONFIG_CRYPTO_MANAGER2=y > # CONFIG_CRYPTO_USER is not set > CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y > CONFIG_CRYPTO_GF128MUL=y > # CONFIG_CRYPTO_NULL is not set > CONFIG_CRYPTO_WORKQUEUE=y > # CONFIG_CRYPTO_CRYPTD is not set > # CONFIG_CRYPTO_AUTHENC is not set > > # > # Authenticated Encryption with Associated Data > # > # CONFIG_CRYPTO_CCM is not set > # CONFIG_CRYPTO_GCM is not set > # CONFIG_CRYPTO_SEQIV is not set > > # > # Block modes > # > CONFIG_CRYPTO_CBC=y > # CONFIG_CRYPTO_CTR is not set > # CONFIG_CRYPTO_CTS is not set > # CONFIG_CRYPTO_ECB is not set > # CONFIG_CRYPTO_LRW is not set > # CONFIG_CRYPTO_PCBC is not set > CONFIG_CRYPTO_XTS=y > > # > # Hash modes > # > # CONFIG_CRYPTO_CMAC is not set > # CONFIG_CRYPTO_HMAC is not set > # CONFIG_CRYPTO_XCBC is not set > # CONFIG_CRYPTO_VMAC is not set > > # > # Digest > # > # CONFIG_CRYPTO_CRC32C is not set > # CONFIG_CRYPTO_CRC32C_INTEL is not set > # CONFIG_CRYPTO_CRC32 is not set > # CONFIG_CRYPTO_CRC32_PCLMUL is not set > # CONFIG_CRYPTO_CRCT10DIF is not set > # CONFIG_CRYPTO_GHASH is not set > # CONFIG_CRYPTO_MD4 is not set > # CONFIG_CRYPTO_MD5 is not set > # CONFIG_CRYPTO_MICHAEL_MIC is not set > # CONFIG_CRYPTO_RMD128 is not set > # CONFIG_CRYPTO_RMD160 is not set > # CONFIG_CRYPTO_RMD256 is not set > # CONFIG_CRYPTO_RMD320 is not set > # CONFIG_CRYPTO_SHA1 is not set > # CONFIG_CRYPTO_SHA1_SSSE3 is not set > # CONFIG_CRYPTO_SHA256_SSSE3 is not set > # CONFIG_CRYPTO_SHA512_SSSE3 is not set > # CONFIG_CRYPTO_SHA256 is not set > # CONFIG_CRYPTO_SHA512 is not set > # CONFIG_CRYPTO_TGR192 is not set > # CONFIG_CRYPTO_WP512 is not set > # CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL is not set > > # > # Ciphers > # > CONFIG_CRYPTO_AES=y > # CONFIG_CRYPTO_AES_X86_64 is not set > # CONFIG_CRYPTO_AES_NI_INTEL is not set > # CONFIG_CRYPTO_ANUBIS is not set > # CONFIG_CRYPTO_ARC4 is not set > # CONFIG_CRYPTO_BLOWFISH is not set > # CONFIG_CRYPTO_BLOWFISH_X86_64 is not set > # CONFIG_CRYPTO_CAMELLIA is not set > # CONFIG_CRYPTO_CAMELLIA_X86_64 is not set > # CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64 is not set > # CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 is not set > # CONFIG_CRYPTO_CAST5 is not set > # CONFIG_CRYPTO_CAST5_AVX_X86_64 is not set > # CONFIG_CRYPTO_CAST6 is not set > # CONFIG_CRYPTO_CAST6_AVX_X86_64 is not set > # CONFIG_CRYPTO_DES is not set > # CONFIG_CRYPTO_FCRYPT is not set > # CONFIG_CRYPTO_KHAZAD is not set > # CONFIG_CRYPTO_SALSA20 is not set > # CONFIG_CRYPTO_SALSA20_X86_64 is not set > # CONFIG_CRYPTO_SEED is not set > CONFIG_CRYPTO_SERPENT=y > # CONFIG_CRYPTO_SERPENT_SSE2_X86_64 is not set > # CONFIG_CRYPTO_SERPENT_AVX_X86_64 is not set > # CONFIG_CRYPTO_SERPENT_AVX2_X86_64 is not set > # CONFIG_CRYPTO_TEA is not set > CONFIG_CRYPTO_TWOFISH=y > CONFIG_CRYPTO_TWOFISH_COMMON=y > # CONFIG_CRYPTO_TWOFISH_X86_64 is not set > # CONFIG_CRYPTO_TWOFISH_X86_64_3WAY is not set > # CONFIG_CRYPTO_TWOFISH_AVX_X86_64 is not set > > # > # Compression > # > # CONFIG_CRYPTO_DEFLATE is not set > # CONFIG_CRYPTO_ZLIB is not set > # CONFIG_CRYPTO_LZO is not set > # CONFIG_CRYPTO_LZ4 is not set > # CONFIG_CRYPTO_LZ4HC is not set > > # > # Random Number Generation > # > CONFIG_CRYPTO_ANSI_CPRNG=y > CONFIG_CRYPTO_USER_API=y > # CONFIG_CRYPTO_USER_API_HASH is not set > CONFIG_CRYPTO_USER_API_SKCIPHER=y > CONFIG_CRYPTO_HW=y > # CONFIG_CRYPTO_DEV_PADLOCK is not set > # CONFIG_CRYPTO_DEV_CCP is not set > CONFIG_HAVE_KVM=y > # CONFIG_VIRTUALIZATION is not set > # CONFIG_BINARY_PRINTF is not set > > # > # Library routines > # > CONFIG_BITREVERSE=y > CONFIG_GENERIC_STRNCPY_FROM_USER=y > CONFIG_GENERIC_STRNLEN_USER=y > CONFIG_GENERIC_NET_UTILS=y > CONFIG_GENERIC_FIND_FIRST_BIT=y > CONFIG_GENERIC_PCI_IOMAP=y > CONFIG_GENERIC_IOMAP=y > CONFIG_GENERIC_IO=y > CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y > # CONFIG_CRC_CCITT is not set > # CONFIG_CRC16 is not set > # CONFIG_CRC_T10DIF is not set > # CONFIG_CRC_ITU_T is not set > CONFIG_CRC32=y > # CONFIG_CRC32_SELFTEST is not set > CONFIG_CRC32_SLICEBY8=y > # CONFIG_CRC32_SLICEBY4 is not set > # CONFIG_CRC32_SARWATE is not set > # CONFIG_CRC32_BIT is not set > # CONFIG_CRC7 is not set > # CONFIG_LIBCRC32C is not set > # CONFIG_CRC8 is not set > # CONFIG_RANDOM32_SELFTEST is not set > CONFIG_ZLIB_INFLATE=y > # CONFIG_XZ_DEC is not set > # CONFIG_XZ_DEC_BCJ is not set > CONFIG_DECOMPRESS_GZIP=y > CONFIG_HAS_IOMEM=y > CONFIG_HAS_IOPORT=y > CONFIG_HAS_DMA=y > CONFIG_DQL=y > CONFIG_NLATTR=y > CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y > CONFIG_AVERAGE=y > # CONFIG_CORDIC is not set > # CONFIG_DDR is not set > ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: GPF in intel_pmu_lbr_reset() with qemu -cpu host 2014-03-21 17:46 ` GPF in intel_pmu_lbr_reset() with qemu -cpu host Peter Wu @ 2014-03-21 19:04 ` Venkatesh Srinivas 2014-03-21 19:09 ` H. Peter Anvin 2014-03-22 8:50 ` Gleb Natapov 0 siblings, 2 replies; 11+ messages in thread From: Venkatesh Srinivas @ 2014-03-21 19:04 UTC (permalink / raw) To: Peter Wu Cc: Peter Zijlstra, Ingo Molnar, Andi Kleen, Linux Kernel Developers List, H. Peter Anvin, kvm, Gleb Natapov, Paolo Bonzini On Fri, Mar 21, 2014 at 10:46 AM, Peter Wu <peter@lekensteyn.nl> wrote: > cc'ing kvm people and list. > > On Friday 21 March 2014 18:42:40 Peter Wu wrote: >> Hi, >> >> While trying to run QEMU with `-enable-kvm -host cpu`, I get a GPF in >> intel_pmu_lbr_reset(): >> >> [ 0.024000] general protection fault: 0000 [#1] >> [ 0.024000] CPU: 0 PID: 1 Comm: swapper Not tainted 3.14.0-rc7-qemu-00059-g08edb33 #14 >> [ 0.024000] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 >> [ 0.024000] task: ffff88003e050000 ti: ffff88003e054000 task.ti: ffff88003e054000 >> [ 0.024000] RIP: 0010:[<ffffffff8101148a>] [<ffffffff8101148a>] intel_pmu_lbr_reset+0x2a/0x80 >> [ 0.024000] RSP: 0000:ffff88003e055e78 EFLAGS: 00000002 >> [ 0.024000] RAX: 0000000000000000 RBX: 0000000000000286 RCX: 0000000000000680 >> [ 0.024000] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 >> [ 0.024000] RBP: ffffffff81622120 R08: ffff88003ffee0e0 R09: ffff88003e00bf00 >> [ 0.024000] R10: 0000000000000000 R11: 0000000000000004 R12: 0000000000000000 >> [ 0.024000] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 >> [ 0.024000] FS: 0000000000000000(0000) GS:ffffffff8161e000(0000) knlGS:0000000000000000 >> [ 0.024000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >> [ 0.024000] CR2: ffff8800019bb000 CR3: 0000000001611000 CR4: 00000000001407b0 >> [ 0.024000] Stack: >> [ 0.024000] ffffffff8101308a ffffffff8100e3da ffffffff8165ba62 0000000000000000 >> [ 0.024000] ffffffff8165b5bd 0000000000000000 0000000000000000 0000000000000000 >> [ 0.024000] ffffffff81655dcd 0000000000000000 0000000000000000 0000000000000000 >> [ 0.024000] Call Trace: >> [ 0.024000] [<ffffffff8101308a>] ? intel_pmu_cpu_starting+0xa/0x80 >> [ 0.024000] [<ffffffff8100e3da>] ? x86_pmu_notifier+0x5a/0xc0 >> [ 0.024000] [<ffffffff8165ba62>] ? init_hw_perf_events+0x4a5/0x4dd >> [ 0.024000] [<ffffffff8165b5bd>] ? check_bugs+0x42/0x42 >> [ 0.024000] [<ffffffff81655dcd>] ? do_one_initcall+0x76/0xf9 >> [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 >> [ 0.024000] [<ffffffff81655ea7>] ? kernel_init_freeable+0x57/0x177 >> [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 >> [ 0.024000] [<ffffffff81276b75>] ? kernel_init+0x5/0xe0 >> [ 0.024000] [<ffffffff8128067a>] ? ret_from_fork+0x7a/0xb0 >> [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 >> [ 0.024000] Code: 00 8b 15 02 c4 63 00 85 d2 74 69 f6 05 af c3 63 00 3f 75 2d 85 d2 7e 5c 31 f6 31 c0 0f 1f 44 00 00 8b 0d d2 c3 63 00 89 c2 01 f1 <0f> 30 83 c6 01 3b 35 d3 c3 63 00 7c e9 f3 c3 0f 1f 80 00 00 00 >> [ 0.024000] RIP [<ffffffff8101148a>] intel_pmu_lbr_reset+0x2a/0x80 >> [ 0.024000] RSP <ffff88003e055e78> >> [ 0.024000] ---[ end trace ecbd794f78441b2c ]--- >> [ 0.024002] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b >> >> >> It possibly has something to do with the msr write. Reproducable with: >> >> qemu-system-x86_64 -enable-kvm -cpu host -kernel bzImage -m 1G -serial file:ser.txt >> >> In the host dmesg, the following is visible when qemu: >> >> kvm [4939]: vcpu0 unhandled wrmsr: 0x680 data 0 >> >> The full guest dmesg is shown below. The issue occurs also with >> v3.13.6, v3.12.14, v3.10.33 (other versions are not tested). >> >> QEMU: 1.7.0 >> Host kernel: v3.14-rc5 >> Guest kernel: v3.14-rc7-59-g08edb33 (.config on the bottom) >> >> Kind regards, >> Peter >> >> ### dmesg >> [ 0.000000] Linux version 3.14.0-rc7-qemu-00059-g08edb33 (pc@antartica) (gcc version 4.8.2 (Ubuntu 4.8.2-16ubuntu6) ) #14 Fri Mar 21 17:30:49 CET 2014 >> [ 0.000000] Command line: console=ttyS0 loglevel=8 >> [ 0.000000] KERNEL supported cpus: >> [ 0.000000] Intel GenuineIntel >> [ 0.000000] e820: BIOS-provided physical RAM map: >> [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable >> [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved >> [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved >> [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000003fffdfff] usable >> [ 0.000000] BIOS-e820: [mem 0x000000003fffe000-0x000000003fffffff] reserved >> [ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved >> [ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved >> [ 0.000000] NX (Execute Disable) protection: active >> [ 0.000000] SMBIOS 2.4 present. >> [ 0.000000] DMI: Bochs Bochs, BIOS Bochs 01/01/2011 >> [ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved >> [ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable >> [ 0.000000] e820: last_pfn = 0x3fffe max_arch_pfn = 0x400000000 >> [ 0.000000] MTRR default type: write-back >> [ 0.000000] MTRR fixed ranges enabled: >> [ 0.000000] 00000-9FFFF write-back >> [ 0.000000] A0000-BFFFF uncachable >> [ 0.000000] C0000-FFFFF write-protect >> [ 0.000000] MTRR variable ranges enabled: >> [ 0.000000] 0 base 0080000000 mask FF80000000 uncachable >> [ 0.000000] 1 disabled >> [ 0.000000] 2 disabled >> [ 0.000000] 3 disabled >> [ 0.000000] 4 disabled >> [ 0.000000] 5 disabled >> [ 0.000000] 6 disabled >> [ 0.000000] 7 disabled >> [ 0.000000] x86 PAT enabled: cpu 0, old 0x70406, new 0x7010600070106 >> [ 0.000000] found SMP MP-table at [mem 0x000f1b10-0x000f1b1f] mapped at [ffff8800000f1b10] >> [ 0.000000] Base memory trampoline at [ffff880000099000] 99000 size 24576 >> [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff] >> [ 0.000000] [mem 0x00000000-0x000fffff] page 4k >> [ 0.000000] BRK [0x019bb000, 0x019bbfff] PGTABLE >> [ 0.000000] BRK [0x019bc000, 0x019bcfff] PGTABLE >> [ 0.000000] BRK [0x019bd000, 0x019bdfff] PGTABLE >> [ 0.000000] init_memory_mapping: [mem 0x3fc00000-0x3fdfffff] >> [ 0.000000] [mem 0x3fc00000-0x3fdfffff] page 2M >> [ 0.000000] init_memory_mapping: [mem 0x3c000000-0x3fbfffff] >> [ 0.000000] [mem 0x3c000000-0x3fbfffff] page 2M >> [ 0.000000] init_memory_mapping: [mem 0x00100000-0x3bffffff] >> [ 0.000000] [mem 0x00100000-0x001fffff] page 4k >> [ 0.000000] [mem 0x00200000-0x3bffffff] page 2M >> [ 0.000000] init_memory_mapping: [mem 0x3fe00000-0x3fffdfff] >> [ 0.000000] [mem 0x3fe00000-0x3fffdfff] page 4k >> [ 0.000000] BRK [0x019be000, 0x019befff] PGTABLE >> [ 0.000000] ACPI: RSDP 00000000000f19b0 000014 (v00 BOCHS ) >> [ 0.000000] ACPI: RSDT 000000003ffffad3 000034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) >> [ 0.000000] ACPI: FACP 000000003ffff177 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001) >> [ 0.000000] ACPI: DSDT 000000003fffe040 001137 (v01 BXPC BXDSDT 00000001 INTL 20130823) >> [ 0.000000] ACPI: FACS 000000003fffe000 000040 >> [ 0.000000] ACPI: SSDT 000000003ffff1eb 000838 (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001) >> [ 0.000000] ACPI: APIC 000000003ffffa23 000078 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) >> [ 0.000000] ACPI: HPET 000000003ffffa9b 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) >> [ 0.000000] ACPI: Local APIC address 0xfee00000 >> [ 0.000000] [ffffea0000000000-ffffea0000ffffff] PMD -> [ffff88003e600000-ffff88003f5fffff] on node 0 >> [ 0.000000] Zone ranges: >> [ 0.000000] DMA [mem 0x00001000-0x00ffffff] >> [ 0.000000] DMA32 [mem 0x01000000-0xffffffff] >> [ 0.000000] Normal empty >> [ 0.000000] Movable zone start for each node >> [ 0.000000] Early memory node ranges >> [ 0.000000] node 0: [mem 0x00001000-0x0009efff] >> [ 0.000000] node 0: [mem 0x00100000-0x3fffdfff] >> [ 0.000000] On node 0 totalpages: 262044 >> [ 0.000000] DMA zone: 64 pages used for memmap >> [ 0.000000] DMA zone: 21 pages reserved >> [ 0.000000] DMA zone: 3998 pages, LIFO batch:0 >> [ 0.000000] DMA32 zone: 4032 pages used for memmap >> [ 0.000000] DMA32 zone: 258046 pages, LIFO batch:31 >> [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 >> [ 0.000000] ACPI: Local APIC address 0xfee00000 >> [ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) >> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) >> [ 0.000000] ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0]) >> [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 >> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) >> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) >> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) >> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) >> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) >> [ 0.000000] ACPI: IRQ0 used by override. >> [ 0.000000] ACPI: IRQ2 used by override. >> [ 0.000000] ACPI: IRQ5 used by override. >> [ 0.000000] ACPI: IRQ9 used by override. >> [ 0.000000] ACPI: IRQ10 used by override. >> [ 0.000000] ACPI: IRQ11 used by override. >> [ 0.000000] Using ACPI (MADT) for SMP configuration information >> [ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000 >> [ 0.000000] nr_irqs_gsi: 40 >> [ 0.000000] e820: [mem 0x40000000-0xfeffbfff] available for PCI devices >> [ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768 >> [ 0.000000] pcpu-alloc: [0] 0 >> [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 257927 >> [ 0.000000] Kernel command line: console=ttyS0 loglevel=8 >> [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) >> [ 0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes) >> [ 0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) >> [ 0.000000] xsave: enabled xstate_bv 0x7, cntxt size 0x340 >> [ 0.000000] Memory: 1020072K/1048176K available (2567K kernel code, 332K rwdata, 704K rodata, 3052K init, 424K bss, 28104K reserved) >> [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 >> [ 0.000000] NR_IRQS:4352 nr_irqs:256 16 >> [ 0.000000] Console: colour VGA+ 80x25 >> [ 0.000000] console [ttyS0] enabled >> [ 0.000000] hpet clockevent registered >> [ 0.000000] tsc: Fast TSC calibration using PIT >> [ 0.000000] tsc: Detected 3392.306 MHz processor >> [ 0.008008] Calibrating delay loop (skipped), value calculated using timer frequency.. 6784.61 BogoMIPS (lpj=13569224) >> [ 0.009740] pid_max: default: 32768 minimum: 301 >> [ 0.010391] ACPI: Core revision 20131218 >> [ 0.012206] ACPI: All ACPI Tables successfully acquired >> [ 0.013024] Mount-cache hash table entries: 256 >> [ 0.013776] Last level iTLB entries: 4KB 512, 2MB 8, 4MB 8 >> [ 0.013776] Last level dTLB entries: 4KB 512, 2MB 32, 4MB 32, 1GB 0 >> [ 0.013776] tlb_flushall_shift: 2 >> [ 0.016002] CPU: Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz (fam: 06, model: 3a, stepping: 09) >> [ 0.017519] Performance Events: 16-deep LBR, IvyBridge events, Intel PMU driver. >> [ 0.018732] ... version: 2 >> [ 0.019362] ... bit width: 48 >> [ 0.020002] ... generic registers: 4 >> [ 0.020574] ... value mask: 0000ffffffffffff >> [ 0.021324] ... max period: 000000007fffffff >> [ 0.022096] ... fixed-purpose events: 3 >> [ 0.022664] ... event mask: 000000070000000f >> [ 0.024000] general protection fault: 0000 [#1] >> [ 0.024000] CPU: 0 PID: 1 Comm: swapper Not tainted 3.14.0-rc7-qemu-00059-g08edb33 #14 >> [ 0.024000] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 >> [ 0.024000] task: ffff88003e050000 ti: ffff88003e054000 task.ti: ffff88003e054000 >> [ 0.024000] RIP: 0010:[<ffffffff8101148a>] [<ffffffff8101148a>] intel_pmu_lbr_reset+0x2a/0x80 >> [ 0.024000] RSP: 0000:ffff88003e055e78 EFLAGS: 00000002 >> [ 0.024000] RAX: 0000000000000000 RBX: 0000000000000286 RCX: 0000000000000680 >> [ 0.024000] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 >> [ 0.024000] RBP: ffffffff81622120 R08: ffff88003ffee0e0 R09: ffff88003e00bf00 >> [ 0.024000] R10: 0000000000000000 R11: 0000000000000004 R12: 0000000000000000 >> [ 0.024000] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 >> [ 0.024000] FS: 0000000000000000(0000) GS:ffffffff8161e000(0000) knlGS:0000000000000000 >> [ 0.024000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >> [ 0.024000] CR2: ffff8800019bb000 CR3: 0000000001611000 CR4: 00000000001407b0 >> [ 0.024000] Stack: >> [ 0.024000] ffffffff8101308a ffffffff8100e3da ffffffff8165ba62 0000000000000000 >> [ 0.024000] ffffffff8165b5bd 0000000000000000 0000000000000000 0000000000000000 >> [ 0.024000] ffffffff81655dcd 0000000000000000 0000000000000000 0000000000000000 >> [ 0.024000] Call Trace: >> [ 0.024000] [<ffffffff8101308a>] ? intel_pmu_cpu_starting+0xa/0x80 >> [ 0.024000] [<ffffffff8100e3da>] ? x86_pmu_notifier+0x5a/0xc0 >> [ 0.024000] [<ffffffff8165ba62>] ? init_hw_perf_events+0x4a5/0x4dd >> [ 0.024000] [<ffffffff8165b5bd>] ? check_bugs+0x42/0x42 >> [ 0.024000] [<ffffffff81655dcd>] ? do_one_initcall+0x76/0xf9 >> [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 >> [ 0.024000] [<ffffffff81655ea7>] ? kernel_init_freeable+0x57/0x177 >> [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 >> [ 0.024000] [<ffffffff81276b75>] ? kernel_init+0x5/0xe0 >> [ 0.024000] [<ffffffff8128067a>] ? ret_from_fork+0x7a/0xb0 >> [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 >> [ 0.024000] Code: 00 8b 15 02 c4 63 00 85 d2 74 69 f6 05 af c3 63 00 3f 75 2d 85 d2 7e 5c 31 f6 31 c0 0f 1f 44 00 00 8b 0d d2 c3 63 00 89 c2 01 f1 <0f> 30 83 c6 01 3b 35 d3 c3 63 00 7c e9 f3 c3 0f 1f 80 00 00 00 >> [ 0.024000] RIP [<ffffffff8101148a>] intel_pmu_lbr_reset+0x2a/0x80 >> [ 0.024000] RSP <ffff88003e055e78> >> [ 0.024000] ---[ end trace ecbd794f78441b2c ]--- >> [ 0.024002] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b When -cpu host is used, qemu/kvm passed the host CPUID F/M/S to the guest. intel_pmu_cpu_*() -> intel_pmu_lbr_reset() uses rdmsr() / wrmsr(), rather than the safe variants; if KVM does not support the particular MSRs in question, you will see a #GP(0) there. See https://lkml.org/lkml/2014/3/13/453 for a similar bug other PMU code. HTH, -- vs; ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: GPF in intel_pmu_lbr_reset() with qemu -cpu host 2014-03-21 19:04 ` Venkatesh Srinivas @ 2014-03-21 19:09 ` H. Peter Anvin 2014-03-22 7:54 ` Paolo Bonzini 2014-03-22 8:50 ` Gleb Natapov 1 sibling, 1 reply; 11+ messages in thread From: H. Peter Anvin @ 2014-03-21 19:09 UTC (permalink / raw) To: Venkatesh Srinivas, Peter Wu Cc: Peter Zijlstra, Ingo Molnar, Andi Kleen, Linux Kernel Developers List, kvm, Gleb Natapov, Paolo Bonzini Calling this a bug in the PMU code is ridiculous. If KVM tells the system it os a specific vendor-family-model-stepping but diverges in behavior then it, by definition, is broken. On March 21, 2014 12:04:32 PM PDT, Venkatesh Srinivas <venkateshs@google.com> wrote: >On Fri, Mar 21, 2014 at 10:46 AM, Peter Wu <peter@lekensteyn.nl> wrote: >> cc'ing kvm people and list. >> >> On Friday 21 March 2014 18:42:40 Peter Wu wrote: >>> Hi, >>> >>> While trying to run QEMU with `-enable-kvm -host cpu`, I get a GPF >in >>> intel_pmu_lbr_reset(): >>> >>> [ 0.024000] general protection fault: 0000 [#1] >>> [ 0.024000] CPU: 0 PID: 1 Comm: swapper Not tainted >3.14.0-rc7-qemu-00059-g08edb33 #14 >>> [ 0.024000] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 >>> [ 0.024000] task: ffff88003e050000 ti: ffff88003e054000 task.ti: >ffff88003e054000 >>> [ 0.024000] RIP: 0010:[<ffffffff8101148a>] [<ffffffff8101148a>] >intel_pmu_lbr_reset+0x2a/0x80 >>> [ 0.024000] RSP: 0000:ffff88003e055e78 EFLAGS: 00000002 >>> [ 0.024000] RAX: 0000000000000000 RBX: 0000000000000286 RCX: >0000000000000680 >>> [ 0.024000] RDX: 0000000000000000 RSI: 0000000000000000 RDI: >0000000000000000 >>> [ 0.024000] RBP: ffffffff81622120 R08: ffff88003ffee0e0 R09: >ffff88003e00bf00 >>> [ 0.024000] R10: 0000000000000000 R11: 0000000000000004 R12: >0000000000000000 >>> [ 0.024000] R13: 0000000000000000 R14: 0000000000000000 R15: >0000000000000000 >>> [ 0.024000] FS: 0000000000000000(0000) GS:ffffffff8161e000(0000) >knlGS:0000000000000000 >>> [ 0.024000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >>> [ 0.024000] CR2: ffff8800019bb000 CR3: 0000000001611000 CR4: >00000000001407b0 >>> [ 0.024000] Stack: >>> [ 0.024000] ffffffff8101308a ffffffff8100e3da ffffffff8165ba62 >0000000000000000 >>> [ 0.024000] ffffffff8165b5bd 0000000000000000 0000000000000000 >0000000000000000 >>> [ 0.024000] ffffffff81655dcd 0000000000000000 0000000000000000 >0000000000000000 >>> [ 0.024000] Call Trace: >>> [ 0.024000] [<ffffffff8101308a>] ? >intel_pmu_cpu_starting+0xa/0x80 >>> [ 0.024000] [<ffffffff8100e3da>] ? x86_pmu_notifier+0x5a/0xc0 >>> [ 0.024000] [<ffffffff8165ba62>] ? >init_hw_perf_events+0x4a5/0x4dd >>> [ 0.024000] [<ffffffff8165b5bd>] ? check_bugs+0x42/0x42 >>> [ 0.024000] [<ffffffff81655dcd>] ? do_one_initcall+0x76/0xf9 >>> [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 >>> [ 0.024000] [<ffffffff81655ea7>] ? >kernel_init_freeable+0x57/0x177 >>> [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 >>> [ 0.024000] [<ffffffff81276b75>] ? kernel_init+0x5/0xe0 >>> [ 0.024000] [<ffffffff8128067a>] ? ret_from_fork+0x7a/0xb0 >>> [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 >>> [ 0.024000] Code: 00 8b 15 02 c4 63 00 85 d2 74 69 f6 05 af c3 63 >00 3f 75 2d 85 d2 7e 5c 31 f6 31 c0 0f 1f 44 00 00 8b 0d d2 c3 63 00 89 >c2 01 f1 <0f> 30 83 c6 01 3b 35 d3 c3 63 00 7c e9 f3 c3 0f 1f 80 00 00 >00 >>> [ 0.024000] RIP [<ffffffff8101148a>] >intel_pmu_lbr_reset+0x2a/0x80 >>> [ 0.024000] RSP <ffff88003e055e78> >>> [ 0.024000] ---[ end trace ecbd794f78441b2c ]--- >>> [ 0.024002] Kernel panic - not syncing: Attempted to kill init! >exitcode=0x0000000b >>> >>> >>> It possibly has something to do with the msr write. Reproducable >with: >>> >>> qemu-system-x86_64 -enable-kvm -cpu host -kernel bzImage -m 1G >-serial file:ser.txt >>> >>> In the host dmesg, the following is visible when qemu: >>> >>> kvm [4939]: vcpu0 unhandled wrmsr: 0x680 data 0 >>> >>> The full guest dmesg is shown below. The issue occurs also with >>> v3.13.6, v3.12.14, v3.10.33 (other versions are not tested). >>> >>> QEMU: 1.7.0 >>> Host kernel: v3.14-rc5 >>> Guest kernel: v3.14-rc7-59-g08edb33 (.config on the bottom) >>> >>> Kind regards, >>> Peter >>> >>> ### dmesg >>> [ 0.000000] Linux version 3.14.0-rc7-qemu-00059-g08edb33 >(pc@antartica) (gcc version 4.8.2 (Ubuntu 4.8.2-16ubuntu6) ) #14 Fri >Mar 21 17:30:49 CET 2014 >>> [ 0.000000] Command line: console=ttyS0 loglevel=8 >>> [ 0.000000] KERNEL supported cpus: >>> [ 0.000000] Intel GenuineIntel >>> [ 0.000000] e820: BIOS-provided physical RAM map: >>> [ 0.000000] BIOS-e820: [mem >0x0000000000000000-0x000000000009fbff] usable >>> [ 0.000000] BIOS-e820: [mem >0x000000000009fc00-0x000000000009ffff] reserved >>> [ 0.000000] BIOS-e820: [mem >0x00000000000f0000-0x00000000000fffff] reserved >>> [ 0.000000] BIOS-e820: [mem >0x0000000000100000-0x000000003fffdfff] usable >>> [ 0.000000] BIOS-e820: [mem >0x000000003fffe000-0x000000003fffffff] reserved >>> [ 0.000000] BIOS-e820: [mem >0x00000000feffc000-0x00000000feffffff] reserved >>> [ 0.000000] BIOS-e820: [mem >0x00000000fffc0000-0x00000000ffffffff] reserved >>> [ 0.000000] NX (Execute Disable) protection: active >>> [ 0.000000] SMBIOS 2.4 present. >>> [ 0.000000] DMI: Bochs Bochs, BIOS Bochs 01/01/2011 >>> [ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> >reserved >>> [ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable >>> [ 0.000000] e820: last_pfn = 0x3fffe max_arch_pfn = 0x400000000 >>> [ 0.000000] MTRR default type: write-back >>> [ 0.000000] MTRR fixed ranges enabled: >>> [ 0.000000] 00000-9FFFF write-back >>> [ 0.000000] A0000-BFFFF uncachable >>> [ 0.000000] C0000-FFFFF write-protect >>> [ 0.000000] MTRR variable ranges enabled: >>> [ 0.000000] 0 base 0080000000 mask FF80000000 uncachable >>> [ 0.000000] 1 disabled >>> [ 0.000000] 2 disabled >>> [ 0.000000] 3 disabled >>> [ 0.000000] 4 disabled >>> [ 0.000000] 5 disabled >>> [ 0.000000] 6 disabled >>> [ 0.000000] 7 disabled >>> [ 0.000000] x86 PAT enabled: cpu 0, old 0x70406, new >0x7010600070106 >>> [ 0.000000] found SMP MP-table at [mem 0x000f1b10-0x000f1b1f] >mapped at [ffff8800000f1b10] >>> [ 0.000000] Base memory trampoline at [ffff880000099000] 99000 >size 24576 >>> [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff] >>> [ 0.000000] [mem 0x00000000-0x000fffff] page 4k >>> [ 0.000000] BRK [0x019bb000, 0x019bbfff] PGTABLE >>> [ 0.000000] BRK [0x019bc000, 0x019bcfff] PGTABLE >>> [ 0.000000] BRK [0x019bd000, 0x019bdfff] PGTABLE >>> [ 0.000000] init_memory_mapping: [mem 0x3fc00000-0x3fdfffff] >>> [ 0.000000] [mem 0x3fc00000-0x3fdfffff] page 2M >>> [ 0.000000] init_memory_mapping: [mem 0x3c000000-0x3fbfffff] >>> [ 0.000000] [mem 0x3c000000-0x3fbfffff] page 2M >>> [ 0.000000] init_memory_mapping: [mem 0x00100000-0x3bffffff] >>> [ 0.000000] [mem 0x00100000-0x001fffff] page 4k >>> [ 0.000000] [mem 0x00200000-0x3bffffff] page 2M >>> [ 0.000000] init_memory_mapping: [mem 0x3fe00000-0x3fffdfff] >>> [ 0.000000] [mem 0x3fe00000-0x3fffdfff] page 4k >>> [ 0.000000] BRK [0x019be000, 0x019befff] PGTABLE >>> [ 0.000000] ACPI: RSDP 00000000000f19b0 000014 (v00 BOCHS ) >>> [ 0.000000] ACPI: RSDT 000000003ffffad3 000034 (v01 BOCHS >BXPCRSDT 00000001 BXPC 00000001) >>> [ 0.000000] ACPI: FACP 000000003ffff177 000074 (v01 BOCHS >BXPCFACP 00000001 BXPC 00000001) >>> [ 0.000000] ACPI: DSDT 000000003fffe040 001137 (v01 BXPC >BXDSDT 00000001 INTL 20130823) >>> [ 0.000000] ACPI: FACS 000000003fffe000 000040 >>> [ 0.000000] ACPI: SSDT 000000003ffff1eb 000838 (v01 BOCHS >BXPCSSDT 00000001 BXPC 00000001) >>> [ 0.000000] ACPI: APIC 000000003ffffa23 000078 (v01 BOCHS >BXPCAPIC 00000001 BXPC 00000001) >>> [ 0.000000] ACPI: HPET 000000003ffffa9b 000038 (v01 BOCHS >BXPCHPET 00000001 BXPC 00000001) >>> [ 0.000000] ACPI: Local APIC address 0xfee00000 >>> [ 0.000000] [ffffea0000000000-ffffea0000ffffff] PMD -> >[ffff88003e600000-ffff88003f5fffff] on node 0 >>> [ 0.000000] Zone ranges: >>> [ 0.000000] DMA [mem 0x00001000-0x00ffffff] >>> [ 0.000000] DMA32 [mem 0x01000000-0xffffffff] >>> [ 0.000000] Normal empty >>> [ 0.000000] Movable zone start for each node >>> [ 0.000000] Early memory node ranges >>> [ 0.000000] node 0: [mem 0x00001000-0x0009efff] >>> [ 0.000000] node 0: [mem 0x00100000-0x3fffdfff] >>> [ 0.000000] On node 0 totalpages: 262044 >>> [ 0.000000] DMA zone: 64 pages used for memmap >>> [ 0.000000] DMA zone: 21 pages reserved >>> [ 0.000000] DMA zone: 3998 pages, LIFO batch:0 >>> [ 0.000000] DMA32 zone: 4032 pages used for memmap >>> [ 0.000000] DMA32 zone: 258046 pages, LIFO batch:31 >>> [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 >>> [ 0.000000] ACPI: Local APIC address 0xfee00000 >>> [ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) >>> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) >>> [ 0.000000] ACPI: IOAPIC (id[0x00] address[0xfec00000] >gsi_base[0]) >>> [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, >GSI 0-23 >>> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl >dfl) >>> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high >level) >>> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high >level) >>> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 >high level) >>> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 >high level) >>> [ 0.000000] ACPI: IRQ0 used by override. >>> [ 0.000000] ACPI: IRQ2 used by override. >>> [ 0.000000] ACPI: IRQ5 used by override. >>> [ 0.000000] ACPI: IRQ9 used by override. >>> [ 0.000000] ACPI: IRQ10 used by override. >>> [ 0.000000] ACPI: IRQ11 used by override. >>> [ 0.000000] Using ACPI (MADT) for SMP configuration information >>> [ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000 >>> [ 0.000000] nr_irqs_gsi: 40 >>> [ 0.000000] e820: [mem 0x40000000-0xfeffbfff] available for PCI >devices >>> [ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768 >>> [ 0.000000] pcpu-alloc: [0] 0 >>> [ 0.000000] Built 1 zonelists in Zone order, mobility grouping >on. Total pages: 257927 >>> [ 0.000000] Kernel command line: console=ttyS0 loglevel=8 >>> [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) >>> [ 0.000000] Dentry cache hash table entries: 131072 (order: 8, >1048576 bytes) >>> [ 0.000000] Inode-cache hash table entries: 65536 (order: 7, >524288 bytes) >>> [ 0.000000] xsave: enabled xstate_bv 0x7, cntxt size 0x340 >>> [ 0.000000] Memory: 1020072K/1048176K available (2567K kernel >code, 332K rwdata, 704K rodata, 3052K init, 424K bss, 28104K reserved) >>> [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, >Nodes=1 >>> [ 0.000000] NR_IRQS:4352 nr_irqs:256 16 >>> [ 0.000000] Console: colour VGA+ 80x25 >>> [ 0.000000] console [ttyS0] enabled >>> [ 0.000000] hpet clockevent registered >>> [ 0.000000] tsc: Fast TSC calibration using PIT >>> [ 0.000000] tsc: Detected 3392.306 MHz processor >>> [ 0.008008] Calibrating delay loop (skipped), value calculated >using timer frequency.. 6784.61 BogoMIPS (lpj=13569224) >>> [ 0.009740] pid_max: default: 32768 minimum: 301 >>> [ 0.010391] ACPI: Core revision 20131218 >>> [ 0.012206] ACPI: All ACPI Tables successfully acquired >>> [ 0.013024] Mount-cache hash table entries: 256 >>> [ 0.013776] Last level iTLB entries: 4KB 512, 2MB 8, 4MB 8 >>> [ 0.013776] Last level dTLB entries: 4KB 512, 2MB 32, 4MB 32, 1GB >0 >>> [ 0.013776] tlb_flushall_shift: 2 >>> [ 0.016002] CPU: Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz (fam: >06, model: 3a, stepping: 09) >>> [ 0.017519] Performance Events: 16-deep LBR, IvyBridge events, >Intel PMU driver. >>> [ 0.018732] ... version: 2 >>> [ 0.019362] ... bit width: 48 >>> [ 0.020002] ... generic registers: 4 >>> [ 0.020574] ... value mask: 0000ffffffffffff >>> [ 0.021324] ... max period: 000000007fffffff >>> [ 0.022096] ... fixed-purpose events: 3 >>> [ 0.022664] ... event mask: 000000070000000f >>> [ 0.024000] general protection fault: 0000 [#1] >>> [ 0.024000] CPU: 0 PID: 1 Comm: swapper Not tainted >3.14.0-rc7-qemu-00059-g08edb33 #14 >>> [ 0.024000] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 >>> [ 0.024000] task: ffff88003e050000 ti: ffff88003e054000 task.ti: >ffff88003e054000 >>> [ 0.024000] RIP: 0010:[<ffffffff8101148a>] [<ffffffff8101148a>] >intel_pmu_lbr_reset+0x2a/0x80 >>> [ 0.024000] RSP: 0000:ffff88003e055e78 EFLAGS: 00000002 >>> [ 0.024000] RAX: 0000000000000000 RBX: 0000000000000286 RCX: >0000000000000680 >>> [ 0.024000] RDX: 0000000000000000 RSI: 0000000000000000 RDI: >0000000000000000 >>> [ 0.024000] RBP: ffffffff81622120 R08: ffff88003ffee0e0 R09: >ffff88003e00bf00 >>> [ 0.024000] R10: 0000000000000000 R11: 0000000000000004 R12: >0000000000000000 >>> [ 0.024000] R13: 0000000000000000 R14: 0000000000000000 R15: >0000000000000000 >>> [ 0.024000] FS: 0000000000000000(0000) GS:ffffffff8161e000(0000) >knlGS:0000000000000000 >>> [ 0.024000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >>> [ 0.024000] CR2: ffff8800019bb000 CR3: 0000000001611000 CR4: >00000000001407b0 >>> [ 0.024000] Stack: >>> [ 0.024000] ffffffff8101308a ffffffff8100e3da ffffffff8165ba62 >0000000000000000 >>> [ 0.024000] ffffffff8165b5bd 0000000000000000 0000000000000000 >0000000000000000 >>> [ 0.024000] ffffffff81655dcd 0000000000000000 0000000000000000 >0000000000000000 >>> [ 0.024000] Call Trace: >>> [ 0.024000] [<ffffffff8101308a>] ? >intel_pmu_cpu_starting+0xa/0x80 >>> [ 0.024000] [<ffffffff8100e3da>] ? x86_pmu_notifier+0x5a/0xc0 >>> [ 0.024000] [<ffffffff8165ba62>] ? >init_hw_perf_events+0x4a5/0x4dd >>> [ 0.024000] [<ffffffff8165b5bd>] ? check_bugs+0x42/0x42 >>> [ 0.024000] [<ffffffff81655dcd>] ? do_one_initcall+0x76/0xf9 >>> [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 >>> [ 0.024000] [<ffffffff81655ea7>] ? >kernel_init_freeable+0x57/0x177 >>> [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 >>> [ 0.024000] [<ffffffff81276b75>] ? kernel_init+0x5/0xe0 >>> [ 0.024000] [<ffffffff8128067a>] ? ret_from_fork+0x7a/0xb0 >>> [ 0.024000] [<ffffffff81276b70>] ? rest_init+0x70/0x70 >>> [ 0.024000] Code: 00 8b 15 02 c4 63 00 85 d2 74 69 f6 05 af c3 63 >00 3f 75 2d 85 d2 7e 5c 31 f6 31 c0 0f 1f 44 00 00 8b 0d d2 c3 63 00 89 >c2 01 f1 <0f> 30 83 c6 01 3b 35 d3 c3 63 00 7c e9 f3 c3 0f 1f 80 00 00 >00 >>> [ 0.024000] RIP [<ffffffff8101148a>] >intel_pmu_lbr_reset+0x2a/0x80 >>> [ 0.024000] RSP <ffff88003e055e78> >>> [ 0.024000] ---[ end trace ecbd794f78441b2c ]--- >>> [ 0.024002] Kernel panic - not syncing: Attempted to kill init! >exitcode=0x0000000b > >When -cpu host is used, qemu/kvm passed the host CPUID F/M/S to the >guest. intel_pmu_cpu_*() -> intel_pmu_lbr_reset() uses rdmsr() / >wrmsr(), rather than the safe variants; if KVM does not support the >particular MSRs in question, you will see a #GP(0) there. See >https://lkml.org/lkml/2014/3/13/453 for a similar bug other PMU code. > >HTH, >-- vs; -- Sent from my mobile phone. Please pardon brevity and lack of formatting. ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: GPF in intel_pmu_lbr_reset() with qemu -cpu host 2014-03-21 19:09 ` H. Peter Anvin @ 2014-03-22 7:54 ` Paolo Bonzini 0 siblings, 0 replies; 11+ messages in thread From: Paolo Bonzini @ 2014-03-22 7:54 UTC (permalink / raw) To: H. Peter Anvin, Venkatesh Srinivas, Peter Wu Cc: Peter Zijlstra, Ingo Molnar, Andi Kleen, Linux Kernel Developers List, kvm, Gleb Natapov Il 21/03/2014 20:09, H. Peter Anvin ha scritto: > Calling this a bug in the PMU code is ridiculous. If KVM tells the > system it os a specific vendor-family-model-stepping but diverges in > behavior then it, by definition, is broken. Yeah, this is true. On AMD there is processor support for virtualizing LBR, but Intel doesn't have it. I'm not sure if generic load/save MSR support could be used to do it. Unfortunately, LBR does not have any CPUID bit to show its presence, unlike a lot of other perf-related features. So, even though calling it a bug in perf code is an exaggeration, using rdmsr_safe makes sense. Paolo ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: GPF in intel_pmu_lbr_reset() with qemu -cpu host 2014-03-21 19:04 ` Venkatesh Srinivas 2014-03-21 19:09 ` H. Peter Anvin @ 2014-03-22 8:50 ` Gleb Natapov 2014-03-22 10:05 ` Peter Wu 1 sibling, 1 reply; 11+ messages in thread From: Gleb Natapov @ 2014-03-22 8:50 UTC (permalink / raw) To: Venkatesh Srinivas Cc: Peter Wu, Peter Zijlstra, Ingo Molnar, Andi Kleen, Linux Kernel Developers List, H. Peter Anvin, kvm, Paolo Bonzini On Fri, Mar 21, 2014 at 12:04:32PM -0700, Venkatesh Srinivas wrote: > On Fri, Mar 21, 2014 at 10:46 AM, Peter Wu <peter@lekensteyn.nl> wrote: [skip] > When -cpu host is used, qemu/kvm passed the host CPUID F/M/S to the > guest. intel_pmu_cpu_*() -> intel_pmu_lbr_reset() uses rdmsr() / > wrmsr(), rather than the safe variants; if KVM does not support the > particular MSRs in question, you will see a #GP(0) there. See > https://lkml.org/lkml/2014/3/13/453 for a similar bug other PMU code. > When kernel is compiled with guest support all rdmsr()/wrmsr() become _safe(), so the question for Peter is if his guest kernel has guest support enabled? -- Gleb. ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: GPF in intel_pmu_lbr_reset() with qemu -cpu host 2014-03-22 8:50 ` Gleb Natapov @ 2014-03-22 10:05 ` Peter Wu 2014-03-22 12:27 ` Gleb Natapov 0 siblings, 1 reply; 11+ messages in thread From: Peter Wu @ 2014-03-22 10:05 UTC (permalink / raw) To: Gleb Natapov Cc: Venkatesh Srinivas, Peter Zijlstra, Ingo Molnar, Andi Kleen, Linux Kernel Developers List, H. Peter Anvin, kvm, Paolo Bonzini On Saturday 22 March 2014 10:50:45 Gleb Natapov wrote: > On Fri, Mar 21, 2014 at 12:04:32PM -0700, Venkatesh Srinivas wrote: > > On Fri, Mar 21, 2014 at 10:46 AM, Peter Wu <peter@lekensteyn.nl> wrote: > [skip] > > > When -cpu host is used, qemu/kvm passed the host CPUID F/M/S to the > > guest. intel_pmu_cpu_*() -> intel_pmu_lbr_reset() uses rdmsr() / > > wrmsr(), rather than the safe variants; if KVM does not support the > > particular MSRs in question, you will see a #GP(0) there. See > > https://lkml.org/lkml/2014/3/13/453 for a similar bug other PMU code. > > > When kernel is compiled with guest support all rdmsr()/wrmsr() become _safe(), > so the question for Peter is if his guest kernel has guest support enabled? Linux guest support (CONFIG_HYPERVISOR_GUEST) was not enabled, see .config in the first mail[1]. Enabling that option does not change the situation. With CONFIG_PARAVIRT and CONFIG_KVM_GUEST enabled, the PMU GPF is gone, but now I have a NULL dereference (in rapl_pmu_init). Previously, when `-cpu SandyBridge` was passed to qemu, it would show this: [ 0.016995] Performance Events: unsupported p6 CPU model 42 no PMU driver, software events only. The same NULL pointer deref would be visible (slightly different addresses, but the Code lines are equal). With `-host`, the NULL deref with `-cpu host` contains: [ 0.016445] Performance Events: 16-deep LBR, IvyBridge events, Intel PMU driver. Full dmesg below. Stepping through the debugger (for `-cpu SandyBridge`) showed that the pmu variable is NULL (in arch/x86/kernel/cpu/perf_event_intel_rapl.c) Skipping that line (`jump +1` in gdb) allowed Linux to continue booting without crashing. I have no idea what is going on here, but hopefully this information helps. Kind regards, Peter [1]: https://lkml.kernel.org/r/4055058.qLAukpngnj@al [ 0.000000] Linux version 3.14.0-rc7-qemu-00059-g08edb33 (pc@antartica) (gcc version 4.8.2 (Ubuntu 4.8.2-16ubuntu6) ) #27 Sat Mar 22 10:06:46 CET 2014 [ 0.000000] Command line: console=ttyS0 loglevel=8 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000003fffdfff] usable [ 0.000000] BIOS-e820: [mem 0x000000003fffe000-0x000000003fffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] DMI: Bochs Bochs, BIOS Bochs 01/01/2011 [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved [ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable [ 0.000000] e820: last_pfn = 0x3fffe max_arch_pfn = 0x400000000 [ 0.000000] MTRR default type: write-back [ 0.000000] MTRR fixed ranges enabled: [ 0.000000] 00000-9FFFF write-back [ 0.000000] A0000-BFFFF uncachable [ 0.000000] C0000-FFFFF write-protect [ 0.000000] MTRR variable ranges enabled: [ 0.000000] 0 base 0080000000 mask FF80000000 uncachable [ 0.000000] 1 disabled [ 0.000000] 2 disabled [ 0.000000] 3 disabled [ 0.000000] 4 disabled [ 0.000000] 5 disabled [ 0.000000] 6 disabled [ 0.000000] 7 disabled [ 0.000000] x86 PAT enabled: cpu 0, old 0x70406, new 0x7010600070106 [ 0.000000] found SMP MP-table at [mem 0x000f1b10-0x000f1b1f] mapped at [ffff8800000f1b10] [ 0.000000] Base memory trampoline at [ffff880000099000] 99000 size 24576 [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff] [ 0.000000] [mem 0x00000000-0x000fffff] page 4k [ 0.000000] BRK [0x019d1000, 0x019d1fff] PGTABLE [ 0.000000] BRK [0x019d2000, 0x019d2fff] PGTABLE [ 0.000000] BRK [0x019d3000, 0x019d3fff] PGTABLE [ 0.000000] init_memory_mapping: [mem 0x3fc00000-0x3fdfffff] [ 0.000000] [mem 0x3fc00000-0x3fdfffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x3c000000-0x3fbfffff] [ 0.000000] [mem 0x3c000000-0x3fbfffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x00100000-0x3bffffff] [ 0.000000] [mem 0x00100000-0x001fffff] page 4k [ 0.000000] [mem 0x00200000-0x3bffffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x3fe00000-0x3fffdfff] [ 0.000000] [mem 0x3fe00000-0x3fffdfff] page 4k [ 0.000000] BRK [0x019d4000, 0x019d4fff] PGTABLE [ 0.000000] ACPI: RSDP 00000000000f19b0 000014 (v00 BOCHS ) [ 0.000000] ACPI: RSDT 000000003ffffad3 000034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: FACP 000000003ffff177 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.000000] ACPI: DSDT 000000003fffe040 001137 (v01 BXPC BXDSDT 00000001 INTL 20130823) [ 0.000000] ACPI: FACS 000000003fffe000 000040 [ 0.000000] ACPI: SSDT 000000003ffff1eb 000838 (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: APIC 000000003ffffa23 000078 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.000000] ACPI: HPET 000000003ffffa9b 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 0:3fffd001, boot clock [ 0.000000] [ffffea0000000000-ffffea0000ffffff] PMD -> [ffff88003e600000-ffff88003f5fffff] on node 0 [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x00001000-0x00ffffff] [ 0.000000] DMA32 [mem 0x01000000-0xffffffff] [ 0.000000] Normal empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x00001000-0x0009efff] [ 0.000000] node 0: [mem 0x00100000-0x3fffdfff] [ 0.000000] On node 0 totalpages: 262044 [ 0.000000] DMA zone: 64 pages used for memmap [ 0.000000] DMA zone: 21 pages reserved [ 0.000000] DMA zone: 3998 pages, LIFO batch:0 [ 0.000000] DMA32 zone: 4032 pages used for memmap [ 0.000000] DMA32 zone: 258046 pages, LIFO batch:31 [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] ACPI: IRQ0 used by override. [ 0.000000] ACPI: IRQ2 used by override. [ 0.000000] ACPI: IRQ5 used by override. [ 0.000000] ACPI: IRQ9 used by override. [ 0.000000] ACPI: IRQ10 used by override. [ 0.000000] ACPI: IRQ11 used by override. [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 0.000000] nr_irqs_gsi: 40 [ 0.000000] KVM setup async PF for cpu 0 [ 0.000000] kvm-stealtime: cpu 0, msr 162cd80 [ 0.000000] e820: [mem 0x40000000-0xfeffbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768 [ 0.000000] pcpu-alloc: [0] 0 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 257927 [ 0.000000] Kernel command line: console=ttyS0 loglevel=8 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes) [ 0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) [ 0.000000] xsave: enabled xstate_bv 0x7, cntxt size 0x340 [ 0.000000] Memory: 1019980K/1048176K available (2892K kernel code, 355K rwdata, 720K rodata, 3116K init, 428K bss, 28196K reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] NR_IRQS:4352 nr_irqs:256 16 [ 0.000000] Console: colour VGA+ 80x25 [ 0.000000] console [ttyS0] enabled [ 0.000000] hpet clockevent registered [ 0.000000] tsc: Detected 3392.292 MHz processor [ 0.008000] Calibrating delay loop (skipped) preset value.. 6784.58 BogoMIPS (lpj=13569168) [ 0.008000] pid_max: default: 32768 minimum: 301 [ 0.008000] ACPI: Core revision 20131218 [ 0.008109] ACPI: All ACPI Tables successfully acquired [ 0.008966] Mount-cache hash table entries: 256 [ 0.009752] Last level iTLB entries: 4KB 512, 2MB 8, 4MB 8 [ 0.009752] Last level dTLB entries: 4KB 512, 2MB 32, 4MB 32, 1GB 0 [ 0.009752] tlb_flushall_shift: 2 [ 0.011935] CPU: Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz (fam: 06, model: 3a, stepping: 09) [ 0.016291] Performance Events: 16-deep LBR, IvyBridge events, Intel PMU driver. [ 0.017460] ... version: 2 [ 0.018057] ... bit width: 48 [ 0.018666] ... generic registers: 4 [ 0.019282] ... value mask: 0000ffffffffffff [ 0.020003] ... max period: 000000007fffffff [ 0.020787] ... fixed-purpose events: 3 [ 0.021382] ... event mask: 000000070000000f [ 0.025328] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 0.026242] TSC deadline timer enabled [ 0.026833] devtmpfs: initialized [ 0.027385] NET: Registered protocol family 16 [ 0.028000] cpuidle: using governor ladder [ 0.028000] cpuidle: using governor menu [ 0.028000] ACPI: bus type PCI registered [ 0.028000] PCI: Using configuration type 1 for base access [ 0.028043] bio: create slab <bio-0> at 0 [ 0.028659] ACPI: Added _OSI(Module Device) [ 0.029283] ACPI: Added _OSI(Processor Device) [ 0.029929] ACPI: Added _OSI(3.0 _SCP Extensions) [ 0.030612] ACPI: Added _OSI(Processor Aggregator Device) [ 0.032294] ACPI: Interpreter enabled [ 0.032853] ACPI: (supports S0 S5) [ 0.033382] ACPI: Using IOAPIC for interrupt routing [ 0.034111] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 0.036680] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 0.037595] acpi PNP0A03:00: _OSC: OS supports [Segments] [ 0.038385] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 0.039385] PCI host bridge to bus 0000:00 [ 0.039994] pci_bus 0000:00: root bus resource [bus 00-ff] [ 0.040004] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7] [ 0.040907] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff] [ 0.041800] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff] [ 0.042792] pci_bus 0000:00: root bus resource [mem 0x80000000-0xfebfffff] [ 0.043783] pci_bus 0000:00: scanning bus [ 0.044038] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 0.044907] pci 0000:00:00.0: calling quirk_mmio_always_on+0x0/0x10 [ 0.046116] pci 0000:00:01.0: [8086:7000] type 00 class 0x060100 [ 0.047433] pci 0000:00:01.1: [8086:7010] type 00 class 0x010180 [ 0.049702] pci 0000:00:01.1: reg 0x20: [io 0xc040-0xc04f] [ 0.051297] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 0.052014] pci 0000:00:01.3: calling acpi_pm_check_blacklist+0x0/0x40 [ 0.053325] pci 0000:00:01.3: calling quirk_piix4_acpi+0x0/0x140 [ 0.054196] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 0.055240] pci 0000:00:01.3: quirk: [io 0xb100-0xb10f] claimed by PIIX4 SMB [ 0.056044] pci 0000:00:01.3: calling pci_fixup_piix4_acpi+0x0/0x10 [ 0.057069] pci 0000:00:02.0: [1013:00b8] type 00 class 0x030000 [ 0.058779] pci 0000:00:02.0: reg 0x10: [mem 0xfc000000-0xfdffffff pref] [ 0.060365] pci 0000:00:02.0: reg 0x14: [mem 0xfebf0000-0xfebf0fff] [ 0.064713] pci 0000:00:02.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 0.065806] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 0.067329] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 0.068616] pci 0000:00:03.0: reg 0x14: [io 0xc000-0xc03f] [ 0.072318] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 0.073577] pci_bus 0000:00: fixups for bus [ 0.074188] pci_bus 0000:00: bus scan returning with max=00 [ 0.075063] pci_bus 0000:00: on NUMA node 0 [ 0.075809] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 0.076329] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 0.077310] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 0.078311] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 0.079273] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 0.080074] acpi LNXCPU:00: Invalid PBLK length [0] [ 0.081012] ACPI: Enabled 16 GPEs in block 00 to 0F [ 0.081801] vgaarb: device added: PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none [ 0.082973] vgaarb: loaded [ 0.083375] vgaarb: bridge control possible 0000:00:02.0 [ 0.084010] PCI: Using ACPI for IRQ routing [ 0.084621] PCI: pci_cache_line_size set to 64 bytes [ 0.085375] pci 0000:00:01.1: BAR 0: reserving [io 0x01f0-0x01f7 flags 0x110] (d=0, p=0) [ 0.086558] pci 0000:00:01.1: BAR 1: reserving [io 0x03f6 flags 0x110] (d=0, p=0) [ 0.087666] pci 0000:00:01.1: BAR 2: reserving [io 0x0170-0x0177 flags 0x110] (d=0, p=0) [ 0.088003] pci 0000:00:01.1: BAR 3: reserving [io 0x0376 flags 0x110] (d=0, p=0) [ 0.089102] pci 0000:00:01.1: BAR 4: reserving [io 0xc040-0xc04f flags 0x40101] (d=0, p=0) [ 0.090314] pci 0000:00:02.0: BAR 0: reserving [mem 0xfc000000-0xfdffffff flags 0x42208] (d=0, p=0) [ 0.091613] pci 0000:00:02.0: BAR 1: reserving [mem 0xfebf0000-0xfebf0fff flags 0x40200] (d=0, p=0) [ 0.092012] pci 0000:00:03.0: BAR 0: reserving [mem 0xfebc0000-0xfebdffff flags 0x40200] (d=0, p=0) [ 0.093334] pci 0000:00:03.0: BAR 1: reserving [io 0xc000-0xc03f flags 0x40101] (d=0, p=0) [ 0.094591] e820: reserve RAM buffer [mem 0x0009fc00-0x0009ffff] [ 0.095460] e820: reserve RAM buffer [mem 0x3fffe000-0x3fffffff] [ 0.096059] Switched to clocksource kvm-clock [ 0.096714] pnp: PnP ACPI init [ 0.097172] ACPI: bus type PNP registered [ 0.097794] pnp 00:00: Plug and Play ACPI device, IDs PNP0b00 (active) [ 0.098772] pnp 00:01: Plug and Play ACPI device, IDs PNP0303 (active) [ 0.099767] pnp 00:02: Plug and Play ACPI device, IDs PNP0f13 (active) [ 0.100692] pnp 00:03: [dma 2] [ 0.101151] pnp 00:03: Plug and Play ACPI device, IDs PNP0700 (active) [ 0.102134] pnp 00:04: Plug and Play ACPI device, IDs PNP0400 (active) [ 0.103119] pnp 00:05: Plug and Play ACPI device, IDs PNP0501 (active) [ 0.104122] pnp 00:06: Plug and Play ACPI device, IDs PNP0501 (active) [ 0.105120] pnp 00:07: Plug and Play ACPI device, IDs PNP0103 (active) [ 0.106130] pnp: PnP ACPI: found 8 devices [ 0.106731] ACPI: bus type PNP unregistered [ 0.112256] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7] [ 0.113069] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff] [ 0.113880] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff] [ 0.114789] pci_bus 0000:00: resource 7 [mem 0x80000000-0xfebfffff] [ 0.115714] NET: Registered protocol family 2 [ 0.116404] TCP established hash table entries: 8192 (order: 4, 65536 bytes) [ 0.117434] TCP bind hash table entries: 8192 (order: 4, 65536 bytes) [ 0.118374] TCP: Hash tables configured (established 8192 bind 8192) [ 0.119304] TCP: reno registered [ 0.119791] UDP hash table entries: 512 (order: 2, 16384 bytes) [ 0.120664] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes) [ 0.121595] NET: Registered protocol family 1 [ 0.122248] pci 0000:00:00.0: calling quirk_natoma+0x0/0x30 [ 0.123059] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 0.123939] pci 0000:00:00.0: calling quirk_passive_release+0x0/0x90 [ 0.124875] pci 0000:00:01.0: PIIX3: Enabling Passive Release [ 0.125724] pci 0000:00:01.0: calling quirk_isa_dma_hangs+0x0/0x30 [ 0.126617] pci 0000:00:01.0: Activating ISA DMA hang workarounds [ 0.127523] pci 0000:00:02.0: calling pci_fixup_video+0x0/0xd0 [ 0.128391] pci 0000:00:02.0: Boot video device [ 0.129065] pci 0000:00:03.0: calling quirk_e100_interrupt+0x0/0x1c0 [ 0.129992] PCI: CLS 0 bytes, default 64 [ 0.153212] BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 [ 0.154421] IP: [<ffffffff81662301>] rapl_pmu_init+0x11a/0x15d [ 0.155292] PGD 0 [ 0.155617] Oops: 0000 [#1] [ 0.156003] CPU: 0 PID: 1 Comm: swapper Not tainted 3.14.0-rc7-qemu-00059-g08edb33 #27 [ 0.156003] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 0.156003] task: ffff88003e050000 ti: ffff88003e054000 task.ti: ffff88003e054000 [ 0.156003] RIP: 0010:[<ffffffff81662301>] [<ffffffff81662301>] rapl_pmu_init+0x11a/0x15d [ 0.156003] RSP: 0000:ffff88003e055ea0 EFLAGS: 00010246 [ 0.156003] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81623620 [ 0.156003] RDX: 0000000000000003 RSI: 0000000000000001 RDI: ffffffff81637750 [ 0.156003] RBP: ffff88003e055eb0 R08: ffff88003e0051c4 R09: ffff88003ffeed10 [ 0.156003] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000068 [ 0.156003] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 0.156003] FS: 0000000000000000(0000) GS:ffffffff8161f000(0000) knlGS:0000000000000000 [ 0.156003] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 0.156003] CR2: 0000000000000020 CR3: 0000000001612000 CR4: 00000000001407b0 [ 0.156003] Stack: [ 0.156003] 0000000000000000 0000000000000000 ffffffff816621e7 ffffffff8165ae40 [ 0.156003] 0000000000000200 ffffffff8108761a ffffffff814a643a 0000006800000000 [ 0.156003] ffffffff814b3008 0000000000060006 0000000000000006 ffffffff816ef428 [ 0.156003] Call Trace: [ 0.156003] [<ffffffff816621e7>] ? intel_uncore_init+0x2a9/0x2a9 [ 0.156003] [<ffffffff8165ae40>] ? do_one_initcall+0x76/0x104 [ 0.156003] [<ffffffff8108761a>] ? parse_args+0x1fa/0x330 [ 0.156003] [<ffffffff8165afc3>] ? kernel_init_freeable+0xf5/0x177 [ 0.156003] [<ffffffff8165a826>] ? do_early_param+0x81/0x81 [ 0.156003] [<ffffffff812c7ae0>] ? rest_init+0x70/0x70 [ 0.156003] [<ffffffff812c7ae5>] ? kernel_init+0x5/0xe0 [ 0.156003] [<ffffffff812d1b0a>] ? ret_from_fork+0x7a/0xb0 [ 0.156003] [<ffffffff812c7ae0>] ? rest_init+0x70/0x70 [ 0.156003] Code: 48 81 89 44 24 04 e8 bf 00 a1 ff 8b 44 24 04 48 c7 c7 d8 61 48 81 89 c6 31 c0 e8 61 99 c6 ff 83 c8 ff eb 46 48 8b 1d 07 9e fc ff <48> 8b 7b 20 e8 06 2a a1 ff 48 69 c8 e8 03 00 00 48 89 d0 be e8 [ 0.156003] RIP [<ffffffff81662301>] rapl_pmu_init+0x11a/0x15d [ 0.156003] RSP <ffff88003e055ea0> [ 0.156003] CR2: 0000000000000020 [ 0.156003] ---[ end trace 30b5cedf4c045624 ]--- [ 0.187473] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009 [ 0.187473] [ 0.188792] Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffff9fffffff) ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: GPF in intel_pmu_lbr_reset() with qemu -cpu host 2014-03-22 10:05 ` Peter Wu @ 2014-03-22 12:27 ` Gleb Natapov 2014-03-22 21:46 ` H. Peter Anvin 2014-03-22 22:00 ` Peter Wu 0 siblings, 2 replies; 11+ messages in thread From: Gleb Natapov @ 2014-03-22 12:27 UTC (permalink / raw) To: Peter Wu Cc: Venkatesh Srinivas, Peter Zijlstra, Ingo Molnar, Andi Kleen, Linux Kernel Developers List, H. Peter Anvin, kvm, Paolo Bonzini On Sat, Mar 22, 2014 at 11:05:03AM +0100, Peter Wu wrote: > On Saturday 22 March 2014 10:50:45 Gleb Natapov wrote: > > On Fri, Mar 21, 2014 at 12:04:32PM -0700, Venkatesh Srinivas wrote: > > > On Fri, Mar 21, 2014 at 10:46 AM, Peter Wu <peter@lekensteyn.nl> wrote: > > [skip] > > > > > When -cpu host is used, qemu/kvm passed the host CPUID F/M/S to the > > > guest. intel_pmu_cpu_*() -> intel_pmu_lbr_reset() uses rdmsr() / > > > wrmsr(), rather than the safe variants; if KVM does not support the > > > particular MSRs in question, you will see a #GP(0) there. See > > > https://lkml.org/lkml/2014/3/13/453 for a similar bug other PMU code. > > > > > When kernel is compiled with guest support all rdmsr()/wrmsr() become _safe(), > > so the question for Peter is if his guest kernel has guest support enabled? > > Linux guest support (CONFIG_HYPERVISOR_GUEST) was not enabled, see > .config in the first mail[1]. Enabling that option does not change the > situation. > > With CONFIG_PARAVIRT and CONFIG_KVM_GUEST enabled, the PMU GPF is gone, Yeah, it should be PARAVIRT indeed since rdmsr()/wrmsr() is substituted by _safe() using paravirt calls. > but now I have a NULL dereference (in rapl_pmu_init). Previously, when > `-cpu SandyBridge` was passed to qemu, it would show this: > > [ 0.016995] Performance Events: unsupported p6 CPU model 42 no PMU driver, software events only. > > The same NULL pointer deref would be visible (slightly different > addresses, but the Code lines are equal). With `-host`, the NULL deref > with `-cpu host` contains: > > [ 0.016445] Performance Events: 16-deep LBR, IvyBridge events, Intel PMU driver. > > Full dmesg below. > I am confused. Do you see crash now with -cpu SandyBridge and -cpu host, or -cpu host only? -- Gleb. ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: GPF in intel_pmu_lbr_reset() with qemu -cpu host 2014-03-22 12:27 ` Gleb Natapov @ 2014-03-22 21:46 ` H. Peter Anvin 2014-03-22 22:00 ` Peter Wu 1 sibling, 0 replies; 11+ messages in thread From: H. Peter Anvin @ 2014-03-22 21:46 UTC (permalink / raw) To: Gleb Natapov, Peter Wu Cc: Venkatesh Srinivas, Peter Zijlstra, Ingo Molnar, Andi Kleen, Linux Kernel Developers List, kvm, Paolo Bonzini Using _safe has it's own issues if noone checks the errors. On March 22, 2014 5:27:59 AM PDT, Gleb Natapov <gleb@kernel.org> wrote: >On Sat, Mar 22, 2014 at 11:05:03AM +0100, Peter Wu wrote: >> On Saturday 22 March 2014 10:50:45 Gleb Natapov wrote: >> > On Fri, Mar 21, 2014 at 12:04:32PM -0700, Venkatesh Srinivas wrote: >> > > On Fri, Mar 21, 2014 at 10:46 AM, Peter Wu <peter@lekensteyn.nl> >wrote: >> > [skip] >> > >> > > When -cpu host is used, qemu/kvm passed the host CPUID F/M/S to >the >> > > guest. intel_pmu_cpu_*() -> intel_pmu_lbr_reset() uses rdmsr() / >> > > wrmsr(), rather than the safe variants; if KVM does not support >the >> > > particular MSRs in question, you will see a #GP(0) there. See >> > > https://lkml.org/lkml/2014/3/13/453 for a similar bug other PMU >code. >> > > >> > When kernel is compiled with guest support all rdmsr()/wrmsr() >become _safe(), >> > so the question for Peter is if his guest kernel has guest support >enabled? >> >> Linux guest support (CONFIG_HYPERVISOR_GUEST) was not enabled, see >> .config in the first mail[1]. Enabling that option does not change >the >> situation. >> >> With CONFIG_PARAVIRT and CONFIG_KVM_GUEST enabled, the PMU GPF is >gone, >Yeah, it should be PARAVIRT indeed since rdmsr()/wrmsr() is substituted >by _safe() >using paravirt calls. > >> but now I have a NULL dereference (in rapl_pmu_init). Previously, >when >> `-cpu SandyBridge` was passed to qemu, it would show this: >> >> [ 0.016995] Performance Events: unsupported p6 CPU model 42 no >PMU driver, software events only. >> >> The same NULL pointer deref would be visible (slightly different >> addresses, but the Code lines are equal). With `-host`, the NULL >deref >> with `-cpu host` contains: >> >> [ 0.016445] Performance Events: 16-deep LBR, IvyBridge events, >Intel PMU driver. >> >> Full dmesg below. >> >I am confused. Do you see crash now with -cpu SandyBridge and -cpu >host, or -cpu host only? > >-- > Gleb. -- Sent from my mobile phone. Please pardon brevity and lack of formatting. ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: GPF in intel_pmu_lbr_reset() with qemu -cpu host 2014-03-22 12:27 ` Gleb Natapov 2014-03-22 21:46 ` H. Peter Anvin @ 2014-03-22 22:00 ` Peter Wu 2014-03-26 7:23 ` Wu, Feng 1 sibling, 1 reply; 11+ messages in thread From: Peter Wu @ 2014-03-22 22:00 UTC (permalink / raw) To: Gleb Natapov Cc: Venkatesh Srinivas, Peter Zijlstra, Ingo Molnar, Andi Kleen, Linux Kernel Developers List, H. Peter Anvin, kvm, Paolo Bonzini On Saturday 22 March 2014 14:27:59 Gleb Natapov wrote: > > but now I have a NULL dereference (in rapl_pmu_init). Previously, when > > `-cpu SandyBridge` was passed to qemu, it would show this: > > > > [ 0.016995] Performance Events: unsupported p6 CPU model 42 no PMU driver, software events only. > > > > The same NULL pointer deref would be visible (slightly different > > addresses, but the Code lines are equal). With `-host`, the NULL deref > > with `-cpu host` contains: > > > > [ 0.016445] Performance Events: 16-deep LBR, IvyBridge events, Intel PMU driver. > > > > Full dmesg below. > > > I am confused. Do you see crash now with -cpu SandyBridge and -cpu host, or -cpu host only? The RAPL crash is seen with both SandyBridge and host, I mentioned SB because that environment should be more constant than "host" (which depends on the CPU you have on, well, the host). Peter ^ permalink raw reply [flat|nested] 11+ messages in thread
* RE: GPF in intel_pmu_lbr_reset() with qemu -cpu host 2014-03-22 22:00 ` Peter Wu @ 2014-03-26 7:23 ` Wu, Feng 2014-03-26 9:38 ` Paolo Bonzini 0 siblings, 1 reply; 11+ messages in thread From: Wu, Feng @ 2014-03-26 7:23 UTC (permalink / raw) To: Peter Wu, Gleb Natapov Cc: Venkatesh Srinivas, Peter Zijlstra, Ingo Molnar, Andi Kleen, Linux Kernel Developers List, H. Peter Anvin, kvm@vger.kernel.org, Paolo Bonzini > -----Original Message----- > From: kvm-owner@vger.kernel.org [mailto:kvm-owner@vger.kernel.org] On > Behalf Of Peter Wu > Sent: Sunday, March 23, 2014 6:00 AM > To: Gleb Natapov > Cc: Venkatesh Srinivas; Peter Zijlstra; Ingo Molnar; Andi Kleen; Linux Kernel > Developers List; H. Peter Anvin; kvm@vger.kernel.org; Paolo Bonzini > Subject: Re: GPF in intel_pmu_lbr_reset() with qemu -cpu host > > On Saturday 22 March 2014 14:27:59 Gleb Natapov wrote: > > > but now I have a NULL dereference (in rapl_pmu_init). Previously, when > > > `-cpu SandyBridge` was passed to qemu, it would show this: > > > > > > [ 0.016995] Performance Events: unsupported p6 CPU model 42 > no PMU driver, software events only. > > > > > > The same NULL pointer deref would be visible (slightly different > > > addresses, but the Code lines are equal). With `-host`, the NULL deref > > > with `-cpu host` contains: > > > > > > [ 0.016445] Performance Events: 16-deep LBR, IvyBridge events, > Intel PMU driver. > > > > > > Full dmesg below. > > > > > I am confused. Do you see crash now with -cpu SandyBridge and -cpu host, or > -cpu host only? > > The RAPL crash is seen with both SandyBridge and host, I mentioned SB > because that environment should be more constant than "host" (which > depends on the CPU you have on, well, the host). > > Peter Is there a solution for this issue right now? I also met this GPF crash. > > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html Thanks, Feng ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: GPF in intel_pmu_lbr_reset() with qemu -cpu host 2014-03-26 7:23 ` Wu, Feng @ 2014-03-26 9:38 ` Paolo Bonzini 0 siblings, 0 replies; 11+ messages in thread From: Paolo Bonzini @ 2014-03-26 9:38 UTC (permalink / raw) To: Wu, Feng, Peter Wu, Gleb Natapov Cc: Venkatesh Srinivas, Peter Zijlstra, Ingo Molnar, Andi Kleen, Linux Kernel Developers List, H. Peter Anvin, kvm@vger.kernel.org Il 26/03/2014 08:23, Wu, Feng ha scritto: > Is there a solution for this issue right now? I also met this GPF crash. Can you attach your .config? Paolo ^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2014-03-26 9:38 UTC | newest]
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2014-03-21 17:46 ` GPF in intel_pmu_lbr_reset() with qemu -cpu host Peter Wu
2014-03-21 19:04 ` Venkatesh Srinivas
2014-03-21 19:09 ` H. Peter Anvin
2014-03-22 7:54 ` Paolo Bonzini
2014-03-22 8:50 ` Gleb Natapov
2014-03-22 10:05 ` Peter Wu
2014-03-22 12:27 ` Gleb Natapov
2014-03-22 21:46 ` H. Peter Anvin
2014-03-22 22:00 ` Peter Wu
2014-03-26 7:23 ` Wu, Feng
2014-03-26 9:38 ` Paolo Bonzini
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