Hi Stephane, On Wed, Jul 30, 2014 at 07:56:11PM +0200, Stephane Eranian wrote: > On Wed, Jul 30, 2014 at 7:53 AM, Fengguang Wu <fengguang...@intel.com> wrote: > > On Wed, Jul 30, 2014 at 06:45:58AM +0200, Stephane Eranian wrote: > >> On Wed, Jul 30, 2014 at 6:00 AM, Fengguang Wu <fengguang...@intel.com> > >> wrote: > >> > Greetings, > >> > > >> > 0day kernel testing robot got the below dmesg and the first bad commit is > >> > > >> Is this booting a guest kernel or native? > > > > It's a guest kernel. > > > >> What is the host CPU? > > > > The host CPU is E5-2680, Sandy Bridge-EP. > > > I thought this problem had already be mentioned a while back. > > See https://lkml.org/lkml/2014/3/6/685 > And https://lkml.org/lkml/2014/4/23/512 > > So what you are telling here is that those two fixes never made it or > that you are > running an older kernel.
I just checked linux-next and find that the bug in rapl_pmu_init() has been fixed. linux-next happen to have the same "BUG: unable to handle kernel NULL pointer dereference" message but at another function validate_chain().. Attached is the dmesg in linux-next. Sorry for the noise! Thanks, Fengguang > >> > git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > >> > commit 4788e5b4b2338f85fa42a712a182d8afd65d7c58 > >> > Author: Stephane Eranian <eran...@google.com> > >> > AuthorDate: Tue Nov 12 17:58:50 2013 +0100 > >> > Commit: Ingo Molnar <mi...@kernel.org> > >> > CommitDate: Wed Nov 27 11:16:40 2013 +0100 > >> > > >> > perf/x86: Add Intel RAPL PMU support > >> > > >> > This patch adds a new uncore PMU to expose the Intel > >> > RAPL energy consumption counters. Up to 3 counters, > >> > each counting a particular RAPL event are exposed. > >> > > >> > The RAPL counters are available on Intel SandyBridge, > >> > IvyBridge, Haswell. The server skus add a 3rd counter. > >> > > >> > The following events are available and exposed in sysfs: > >> > > >> > - power/energy-cores: power consumption of all cores on socket > >> > - power/energy-pkg: power consumption of all cores + LLc cache > >> > - power/energy-dram: power consumption of DRAM (servers only) > >> > > >> > For each event both the unit (Joules) and scale (2^-32 J) > >> > is exposed in sysfs for use by perf stat and other tools. > >> > The files are: > >> > > >> > /sys/devices/power/events/energy-*.unit > >> > /sys/devices/power/events/energy-*.scale > >> > > >> > The RAPL PMU is uncore by nature and is implemented such > >> > that it only works in system-wide mode. Measuring only > >> > one CPU per socket is sufficient. The /sys/devices/power/cpumask > >> > file can be used by tools to figure out which CPUs to monitor > >> > by default. For instance, on a 2-socket system, 2 CPUs > >> > (one on each socket) will be shown. > >> > > >> > All the counters measure in the same unit (exposed via sysfs). > >> > The perf_events API exposes all RAPL counters as 64-bit integers > >> > counting in unit of 1/2^32 Joules (about 0.23 nJ). User level tools > >> > must convert the counts by multiplying them by 2^-32 to obtain > >> > Joules. The reason for this is that the kernel avoids > >> > doing floating point math whenever possible because it is > >> > expensive (user floating-point state must be saved). The method > >> > used avoids kernel floating-point usage. There is no loss of > >> > precision. Thanks to PeterZ for suggesting this approach. > >> > > >> > To convert the raw count in Watt: > >> > W = C * 2.3 / (1e10 * time) > >> > or ldexp(C, -32). > >> > > >> > RAPL PMU is a new standalone PMU which registers with the > >> > perf_event core subsystem. The PMU type (attr->type) is > >> > dynamically allocated and is available from /sys/device/power/type. > >> > > >> > Sampling is not supported by the RAPL PMU. There is no > >> > privilege level filtering either. > >> > > >> > Signed-off-by: Stephane Eranian <eran...@google.com> > >> > Reviewed-by: Maria Dimakopoulou <maria.n.dimakopou...@gmail.com> > >> > Reviewed-by: Andi Kleen <a...@linux.intel.com> > >> > Signed-off-by: Peter Zijlstra <pet...@infradead.org> > >> > Cc: a...@redhat.com > >> > Cc: jo...@redhat.com > >> > Cc: zheng.z....@intel.com > >> > Cc: b...@alien8.de > >> > Link: > >> > http://lkml.kernel.org/r/1384275531-10892-4-git-send-email-eran...@google.com > >> > Signed-off-by: Ingo Molnar <mi...@kernel.org> > >> > > >> > +-----------------------------------------------------------+------------+------------+---------------+ > >> > | | 410136f5dd > >> > | 4788e5b4b2 | next-20140724 | > >> > +-----------------------------------------------------------+------------+------------+---------------+ > >> > | boot_successes | 1000 > >> > | 751 | 78 | > >> > | boot_failures | 0 > >> > | 149 | 3 | > >> > | BUG:unable_to_handle_kernel_NULL_pointer_dereference | 0 > >> > | 132 | 2 | > >> > | Oops | 0 > >> > | 132 | 2 | > >> > | EIP_is_at_rapl_pmu_init | 0 > >> > | 132 | | > >> > | Kernel_panic-not_syncing:Attempted_to_kill_init_exitcode= | 0 > >> > | 132 | 2 | > >> > | backtrace:rapl_pmu_init | 0 > >> > | 132 | | > >> > | backtrace:kernel_init_freeable | 0 > >> > | 132 | 2 | > >> > | BUG:kernel_boot_hang | 0 > >> > | 17 | 1 | > >> > | EIP_is_at_validate_chain | 0 > >> > | 0 | 2 | > >> > | backtrace:free_reserved_area | 0 > >> > | 0 | 2 | > >> > | backtrace:free_init_pages | 0 > >> > | 0 | 2 | > >> > | backtrace:populate_rootfs | 0 > >> > | 0 | 2 | > >> > +-----------------------------------------------------------+------------+------------+---------------+ > >> > > >> > [ 0.613305] PCI: CLS 0 bytes, default 64 > >> > [ 0.614699] Unpacking initramfs... > >> > [ 0.732188] Freeing initrd memory: 3276K (d3cbd000 - d3ff0000) > >> > [ 0.733895] BUG: unable to handle kernel NULL pointer dereference at > >> > 00000028 > >> > [ 0.735603] IP: [<c09b20cb>] rapl_pmu_init+0x11e/0x139 > >> > [ 0.736012] *pdpt = 0000000000000000 *pde = f000ff53f000ff53 > >> > [ 0.736012] Oops: 0000 [#1] PREEMPT > >> > [ 0.736012] Modules linked in: > >> > [ 0.736012] CPU: 0 PID: 1 Comm: swapper Not tainted > >> > 3.12.0-05711-g4788e5b #11 > >> > [ 0.736012] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 > >> > [ 0.736012] task: d244c020 ti: d244e000 task.ti: d244e000 > >> > [ 0.736012] EIP: 0060:[<c09b20cb>] EFLAGS: 00010202 CPU: 0 > >> > [ 0.736012] EIP is at rapl_pmu_init+0x11e/0x139 > >> > [ 0.736012] EAX: 00000000 EBX: 00000000 ECX: 00000000 EDX: 00000001 > >> > [ 0.736012] ESI: c09b1fad EDI: 000000cc EBP: d244ff00 ESP: d244fef0 > >> > [ 0.736012] DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068 > >> > [ 0.736012] CR0: 80050033 CR2: 00000028 CR3: 00a16000 CR4: 000406b0 > >> > [ 0.736012] Stack: > >> > [ 0.736012] c04ddabe 00000000 00000002 00000000 d244ff74 c0200477 > >> > c0251b16 d244ff2c > >> > [ 0.736012] c025467d d3ff63cb d244ff34 c02410cb d3ff63cb d244ff00 > >> > c09aa512 c080d71c > >> > [ 0.736012] 000000cc d244ff74 c02412d5 c0829fe0 00000286 c023b6d8 > >> > 00000246 00060006 > >> > [ 0.736012] Call Trace: > >> > [ 0.736012] [<c04ddabe>] ? register_syscore_ops+0x32/0x35 > >> > [ 0.736012] [<c0200477>] do_one_initcall+0xdf/0x138 > >> > [ 0.736012] [<c0251b16>] ? lock_release_holdtime.part.20+0x93/0xf8 > >> > [ 0.736012] [<c025467d>] ? trace_hardirqs_on_caller+0xeb/0x1ad > >> > [ 0.736012] [<c02410cb>] ? parameq+0x13/0x5e > >> > [ 0.736012] [<c09aa512>] ? repair_env_string+0x12/0x51 > >> > [ 0.736012] [<c02412d5>] ? parse_args+0x1bf/0x2f8 > >> > [ 0.736012] [<c023b6d8>] ? > >> > __usermodehelper_set_disable_depth+0x3e/0x44 > >> > [ 0.736012] [<c09aab46>] kernel_init_freeable+0xde/0x178 > >> > [ 0.736012] [<c09aa500>] ? do_early_param+0x78/0x78 > >> > [ 0.736012] [<c064bd10>] kernel_init+0xb/0xed > >> > [ 0.736012] [<c0249199>] ? schedule_tail+0xc/0x3a > >> > [ 0.736012] [<c0659637>] ret_from_kernel_thread+0x1b/0x28 > >> > [ 0.736012] [<c064bd05>] ? rest_init+0xb5/0xb5 > >> > [ 0.736012] Code: 99 87 ff 89 5c 24 04 c7 04 24 90 bf 76 c0 e8 dd e9 > >> > c9 ff 83 c8 ff eb 28 a1 44 bc a1 c0 f3 0f b8 c0 90 89 44 24 08 a1 80 73 > >> > 82 c0 <8b> 40 28 89 44 24 04 c7 04 24 d4 bf 76 c0 e8 b2 e9 c9 ff 31 c0 > >> > [ 0.736012] EIP: [<c09b20cb>] rapl_pmu_init+0x11e/0x139 SS:ESP > >> > 0068:d244fef0 > >> > [ 0.736012] CR2: 0000000000000028 > >> > [ 0.736012] ---[ end trace 0a81712c9fb36a0a ]--- > >> > [ 0.736012] swapper (1) used greatest stack depth: 5800 bytes left > >> > > >> > git bisect start v3.14 v3.13 -- > >> > git bisect bad 09df7c4c8097ca4a11393b1edd4997d786daad52 # 16:18 > >> > 0- 3 x86: Remove CONFIG_X86_OOSTORE > >> > git bisect bad 15c81026204da897a05424c79263aea861a782cc # 16:24 > >> > 2- 5 Merge branch 'x86-x32-for-linus' of > >> > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip > >> > git bisect bad a0fa1dd3cdbccec9597fe53b6177a9aa6e20f2f8 # 16:33 > >> > 0- 15 Merge branch 'sched-core-for-linus' of > >> > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip > >> > git bisect good edde1fb8c41d0db7c8ce17fb32886da2e389b0cc # 17:48 > >> > 900+ 0 Merge tag 'localmodconfig-v3.14' of > >> > git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-kconfig > >> > git bisect good a693c46e14c9fdadbcd68ddfa94a4f72495531a9 # 17:55 > >> > 900+ 0 Merge branch 'core-rcu-for-linus' of > >> > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip > >> > git bisect good 2cc3f16cad1561c6fc551aefff559e53726efc8b # 18:12 > >> > 900+ 0 Merge branch 'irq-core-for-linus' of > >> > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip > >> > git bisect bad 9326657abe1a83ed4b4f396b923ca1217fd50cba # 18:21 > >> > 9- 2 Merge branch 'perf-core-for-linus' of > >> > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip > >> > git bisect bad 7bb73553e2490ac6667387ee723e0faa61e9d999 # 18:38 > >> > 0- 1 tools lib traceevent: Get rid of die() in reparent_op_arg() > >> > git bisect bad 3d7c0144491bd8c21d53b43032274a85efdfe434 # 18:41 > >> > 11- 4 perf tools: Add build and install plugins targets > >> > git bisect bad ba1ddf42f3c3af111d3adee277534f73c1ef6a9b # 18:43 > >> > 0- 15 perf script: Print mmap[2] events also > >> > git bisect bad a8b4c7014cadfdacd4e1f4c963128593be6f20de # 18:49 > >> > 0- 2 perf completion: Rename file to reflect zsh support > >> > git bisect bad 4788e5b4b2338f85fa42a712a182d8afd65d7c58 # 18:53 > >> > 0- 1 perf/x86: Add Intel RAPL PMU support > >> > git bisect good c912dae60ae6f659455f239298110adc67a5f3e9 # 19:33 > >> > 900+ 14 uprobes: Cleanup !CONFIG_UPROBES decls, unexport xol_area > >> > git bisect good 09897d78dbc3a544426f2272b5601c62922ccab9 # 19:44 > >> > 900+ 0 Merge branch 'uprobes/core' of > >> > git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc into perf/core > >> > git bisect good 410136f5dd96b6013fe6d1011b523b1c247e1ccb # 19:52 > >> > 900+ 0 tools/perf/stat: Add event unit and scale support > >> > # first bad commit: [4788e5b4b2338f85fa42a712a182d8afd65d7c58] perf/x86: > >> > Add Intel RAPL PMU support > >> > git bisect good 410136f5dd96b6013fe6d1011b523b1c247e1ccb # 19:56 > >> > 1000+ 0 tools/perf/stat: Add event unit and scale support > >> > git bisect bad 1a58d9909611972fd1c081bb04a9f7dc2571e612 # 19:58 > >> > 0- 3 Add linux-next specific files for 20140724 > >> > git bisect bad 82e13c71bc655b6dc7110da4e164079dadb44892 # 20:07 > >> > 448- 10 Merge branch 'for-3.16' of > >> > git://linux-nfs.org/~bfields/linux > >> > git bisect bad 5a7439efd1c5c416f768fc550048ca130cf4bf99 # 20:14 > >> > 2- 6 Add linux-next specific files for 20140725 > >> > > >> > > >> > This script may reproduce the error. > >> > > >> > ---------------------------------------------------------------------------- > >> > #!/bin/bash > >> > > >> > kernel=$1 > >> > initrd=yocto-minimal-i386.cgz > >> > > >> > wget --no-clobber > >> > https://github.com/fengguang/reproduce-kernel-bug/blob/master/initrd/$initrd > >> > > >> > kvm=( > >> > qemu-system-x86_64 > >> > -enable-kvm > >> > -cpu Haswell,+smep,+smap > >> > -kernel $kernel > >> > -initrd $initrd > >> > -m 320 > >> > -smp 1 > >> > -net nic,vlan=1,model=e1000 > >> > -net user,vlan=1 > >> > -boot order=nc > >> > -no-reboot > >> > -watchdog i6300esb > >> > -rtc base=localtime > >> > -serial stdio > >> > -display none > >> > -monitor null > >> > ) > >> > > >> > append=( > >> > hung_task_panic=1 > >> > earlyprintk=ttyS0,115200 > >> > debug > >> > apic=debug > >> > sysrq_always_enabled > >> > rcupdate.rcu_cpu_stall_timeout=100 > >> > panic=10 > >> > softlockup_panic=1 > >> > nmi_watchdog=panic > >> > prompt_ramdisk=0 > >> > console=ttyS0,115200 > >> > console=tty0 > >> > vga=normal > >> > root=/dev/ram0 > >> > rw > >> > drbd.minor_count=8 > >> > ) > >> > > >> > "${kvm[@]}" --append "${append[*]}" > >> > ---------------------------------------------------------------------------- > >> > > >> > Thanks, > >> > Fengguang > >> > > >> > _______________________________________________ > >> > LKP mailing list > >> > l...@linux.intel.com > >> >
early console in setup code early console in decompress_kernel KASLR using RDTSC... Decompressing Linux... Parsing ELF... Performing relocations... done. Booting the kernel. [ 0.000000] Linux version 3.16.0-rc6-next-20140724 (kbuild@lkp-ib03) (gcc version 4.8.2 (Debian 4.8.2-18) ) #89 PREEMPT Fri Jul 25 11:55:48 CST 2014 [ 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 0x0000000000100000-0x0000000013ffdfff] usable [ 0.000000] BIOS-e820: [mem 0x0000000013ffe000-0x0000000013ffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] DMI: QEMU Standard PC (i440FX + PIIX, 1996), 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 = 0x13ffe max_arch_pfn = 0x1000000 [ 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] 8 disabled [ 0.000000] 9 disabled [ 0.000000] x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106 [ 0.000000] Scan for SMP in [mem 0x00000000-0x000003ff] [ 0.000000] Scan for SMP in [mem 0x0009fc00-0x0009ffff] [ 0.000000] Scan for SMP in [mem 0x000f0000-0x000fffff] [ 0.000000] found SMP MP-table at [mem 0x000f0eb0-0x000f0ebf] mapped at [c00f0eb0] [ 0.000000] mpc: f0ec0-f0fa4 [ 0.000000] initial memory mapped: [mem 0x00000000-0x131fffff] [ 0.000000] Base memory trampoline at [c009b000] 9b000 size 16384 [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff] [ 0.000000] [mem 0x00000000-0x000fffff] page 4k [ 0.000000] init_memory_mapping: [mem 0x11a00000-0x11bfffff] [ 0.000000] [mem 0x11a00000-0x11bfffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x10000000-0x119fffff] [ 0.000000] [mem 0x10000000-0x119fffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x00100000-0x0fffffff] [ 0.000000] [mem 0x00100000-0x001fffff] page 4k [ 0.000000] [mem 0x00200000-0x0fffffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x11c00000-0x13ffdfff] [ 0.000000] [mem 0x11c00000-0x13dfffff] page 2M [ 0.000000] [mem 0x13e00000-0x13ffdfff] page 4k [ 0.000000] cma: Reserved 16 MiB at 10800000 [ 0.000000] RAMDISK: [mem 0x127ab000-0x13feffff] [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x000F0D00 000014 (v00 BOCHS ) [ 0.000000] ACPI: RSDT 0x13FFFC2A 000034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: FACP 0x13FFF1C0 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.000000] ACPI: DSDT 0x13FFE040 001180 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: FACS 0x13FFE000 000040 [ 0.000000] ACPI: SSDT 0x13FFF234 00093E (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: APIC 0x13FFFB72 000080 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.000000] ACPI: HPET 0x13FFFBF2 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] mapped APIC to ffffc000 ( fee00000) [ 0.000000] 319MB LOWMEM available. [ 0.000000] mapped low ram: 0 - 13ffe000 [ 0.000000] low ram: 0 - 13ffe000 [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 0:13ffd001, primary cpu clock [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x00001000-0x00ffffff] [ 0.000000] Normal [mem 0x01000000-0x13ffdfff] [ 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 0x00100000-0x13ffdfff] [ 0.000000] Initmem setup node 0 [mem 0x00001000-0x13ffdfff] [ 0.000000] On node 0 totalpages: 81820 [ 0.000000] free_area_init_node: node 0, pgdat d23f0da0, node_mem_map d197f020 [ 0.000000] DMA zone: 32 pages used for memmap [ 0.000000] DMA zone: 0 pages reserved [ 0.000000] DMA zone: 3998 pages, LIFO batch:0 [ 0.000000] Normal zone: 608 pages used for memmap [ 0.000000] Normal zone: 77822 pages, LIFO batch:15 [ 0.000000] Using APIC driver default [ 0.000000] ACPI: PM-Timer IO Port: 0x608 [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] mapped APIC to ffffc000 ( fee00000) [ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled) [ 0.000000] ACPI: NR_CPUS/possible_cpus limit of 1 reached. Processor 1/0x1 ignored. [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] Using ACPI for processor (LAPIC) configuration information [ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 0.000000] Intel MultiProcessor Specification v1.4 [ 0.000000] Virtual Wire compatibility mode. [ 0.000000] mpc: f0ec0-f0fa4 [ 0.000000] MPTABLE: OEM ID: BOCHSCPU [ 0.000000] MPTABLE: Product ID: 0.1 [ 0.000000] MPTABLE: APIC at: 0xFEE00000 [ 0.000000] Lint: type 3, pol 0, trig 0, bus 01, IRQ 00, APIC ID 0, APIC LINT 00 [ 0.000000] Lint: type 1, pol 0, trig 0, bus 01, IRQ 00, APIC ID ff, APIC LINT 01 [ 0.000000] Processors: 1 [ 0.000000] KVM setup async PF for cpu 0 [ 0.000000] kvm-stealtime: cpu 0, msr 12274980 [ 0.000000] e820: [mem 0x14000000-0xfeffbfff] 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: 81180 [ 0.000000] Kernel command line: hung_task_panic=1 earlyprintk=ttyS0,115200 debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=10 softlockup_panic=1 nmi_watchdog=panic prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kbuild-tests/run-queue/kvm/i386-randconfig-ib1-07251153/next:master:1a58d9909611972fd1c081bb04a9f7dc2571e612:bisect-linux-9/.vmlinuz-1a58d9909611972fd1c081bb04a9f7dc2571e612-20140725121947-2-ivb42 branch=next/master BOOT_IMAGE=/kernel/i386-randconfig-ib1-07251153/1a58d9909611972fd1c081bb04a9f7dc2571e612/vmlinuz-3.16.0-rc6-next-20140724 drbd.minor_count=8 [ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes) [ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes) [ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) [ 0.000000] Initializing CPU#0 [ 0.000000] Memory: 270992K/327280K available (4674K kernel code, 1662K rwdata, 1812K rodata, 432K init, 8296K bss, 56288K reserved) [ 0.000000] virtual kernel memory layout: [ 0.000000] fixmap : 0xfffe2000 - 0xfffff000 ( 116 kB) [ 0.000000] vmalloc : 0xd47fe000 - 0xfffe0000 ( 695 MB) [ 0.000000] lowmem : 0xc0000000 - 0xd3ffe000 ( 319 MB) [ 0.000000] .init : 0xd23f8000 - 0xd2464000 ( 432 kB) [ 0.000000] .data : 0xd2090e86 - 0xd23f6a00 (3478 kB) [ 0.000000] .text : 0xd1c00000 - 0xd2090e86 (4675 kB) [ 0.000000] Checking if this processor honours the WP bit even in supervisor mode...Ok. [ 0.000000] Preemptible hierarchical RCU implementation. [ 0.000000] NR_IRQS:16 nr_irqs:16 16 [ 0.000000] CPU 0 irqstacks, hard=d0408000 soft=d040a000 [ 0.000000] Console: colour VGA+ 80x25 [ 0.000000] console [tty0] enabled [ 0.000000] bootconsole [earlyser0] disabled [ 0.000000] Linux version 3.16.0-rc6-next-20140724 (kbuild@lkp-ib03) (gcc version 4.8.2 (Debian 4.8.2-18) ) #89 PREEMPT Fri Jul 25 11:55:48 CST 2014 [ 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 0x0000000000100000-0x0000000013ffdfff] usable [ 0.000000] BIOS-e820: [mem 0x0000000013ffe000-0x0000000013ffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] DMI: QEMU Standard PC (i440FX + PIIX, 1996), 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 = 0x13ffe max_arch_pfn = 0x1000000 [ 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] 8 disabled [ 0.000000] 9 disabled [ 0.000000] x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106 [ 0.000000] Scan for SMP in [mem 0x00000000-0x000003ff] [ 0.000000] Scan for SMP in [mem 0x0009fc00-0x0009ffff] [ 0.000000] Scan for SMP in [mem 0x000f0000-0x000fffff] [ 0.000000] found SMP MP-table at [mem 0x000f0eb0-0x000f0ebf] mapped at [c00f0eb0] [ 0.000000] mpc: f0ec0-f0fa4 [ 0.000000] initial memory mapped: [mem 0x00000000-0x131fffff] [ 0.000000] Base memory trampoline at [c009b000] 9b000 size 16384 [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff] [ 0.000000] [mem 0x00000000-0x000fffff] page 4k [ 0.000000] init_memory_mapping: [mem 0x11a00000-0x11bfffff] [ 0.000000] [mem 0x11a00000-0x11bfffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x10000000-0x119fffff] [ 0.000000] [mem 0x10000000-0x119fffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x00100000-0x0fffffff] [ 0.000000] [mem 0x00100000-0x001fffff] page 4k [ 0.000000] [mem 0x00200000-0x0fffffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x11c00000-0x13ffdfff] [ 0.000000] [mem 0x11c00000-0x13dfffff] page 2M [ 0.000000] [mem 0x13e00000-0x13ffdfff] page 4k [ 0.000000] cma: Reserved 16 MiB at 10800000 [ 0.000000] RAMDISK: [mem 0x127ab000-0x13feffff] [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x000F0D00 000014 (v00 BOCHS ) [ 0.000000] ACPI: RSDT 0x13FFFC2A 000034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: FACP 0x13FFF1C0 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.000000] ACPI: DSDT 0x13FFE040 001180 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: FACS 0x13FFE000 000040 [ 0.000000] ACPI: SSDT 0x13FFF234 00093E (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: APIC 0x13FFFB72 000080 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.000000] ACPI: HPET 0x13FFFBF2 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] mapped APIC to ffffc000 ( fee00000) [ 0.000000] 319MB LOWMEM available. [ 0.000000] mapped low ram: 0 - 13ffe000 [ 0.000000] low ram: 0 - 13ffe000 [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 0:13ffd001, primary cpu clock [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x00001000-0x00ffffff] [ 0.000000] Normal [mem 0x01000000-0x13ffdfff] [ 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 0x00100000-0x13ffdfff] [ 0.000000] Initmem setup node 0 [mem 0x00001000-0x13ffdfff] [ 0.000000] On node 0 totalpages: 81820 [ 0.000000] free_area_init_node: node 0, pgdat d23f0da0, node_mem_map d197f020 [ 0.000000] DMA zone: 32 pages used for memmap [ 0.000000] DMA zone: 0 pages reserved [ 0.000000] DMA zone: 3998 pages, LIFO batch:0 [ 0.000000] Normal zone: 608 pages used for memmap [ 0.000000] Normal zone: 77822 pages, LIFO batch:15 [ 0.000000] Using APIC driver default [ 0.000000] ACPI: PM-Timer IO Port: 0x608 [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] mapped APIC to ffffc000 ( fee00000) [ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled) [ 0.000000] ACPI: NR_CPUS/possible_cpus limit of 1 reached. Processor 1/0x1 ignored. [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] Using ACPI for processor (LAPIC) configuration information [ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 0.000000] Intel MultiProcessor Specification v1.4 [ 0.000000] Virtual Wire compatibility mode. [ 0.000000] mpc: f0ec0-f0fa4 [ 0.000000] MPTABLE: OEM ID: BOCHSCPU [ 0.000000] MPTABLE: Product ID: 0.1 [ 0.000000] MPTABLE: APIC at: 0xFEE00000 [ 0.000000] Lint: type 3, pol 0, trig 0, bus 01, IRQ 00, APIC ID 0, APIC LINT 00 [ 0.000000] Lint: type 1, pol 0, trig 0, bus 01, IRQ 00, APIC ID ff, APIC LINT 01 [ 0.000000] Processors: 1 [ 0.000000] KVM setup async PF for cpu 0 [ 0.000000] kvm-stealtime: cpu 0, msr 12274980 [ 0.000000] e820: [mem 0x14000000-0xfeffbfff] 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: 81180 [ 0.000000] Kernel command line: hung_task_panic=1 earlyprintk=ttyS0,115200 debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=10 softlockup_panic=1 nmi_watchdog=panic prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kbuild-tests/run-queue/kvm/i386-randconfig-ib1-07251153/next:master:1a58d9909611972fd1c081bb04a9f7dc2571e612:bisect-linux-9/.vmlinuz-1a58d9909611972fd1c081bb04a9f7dc2571e612-20140725121947-2-ivb42 branch=next/master BOOT_IMAGE=/kernel/i386-randconfig-ib1-07251153/1a58d9909611972fd1c081bb04a9f7dc2571e612/vmlinuz-3.16.0-rc6-next-20140724 drbd.minor_count=8 [ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes) [ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes) [ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) [ 0.000000] Initializing CPU#0 [ 0.000000] Memory: 270992K/327280K available (4674K kernel code, 1662K rwdata, 1812K rodata, 432K init, 8296K bss, 56288K reserved) [ 0.000000] virtual kernel memory layout: [ 0.000000] fixmap : 0xfffe2000 - 0xfffff000 ( 116 kB) [ 0.000000] vmalloc : 0xd47fe000 - 0xfffe0000 ( 695 MB) [ 0.000000] lowmem : 0xc0000000 - 0xd3ffe000 ( 319 MB) [ 0.000000] .init : 0xd23f8000 - 0xd2464000 ( 432 kB) [ 0.000000] .data : 0xd2090e86 - 0xd23f6a00 (3478 kB) [ 0.000000] .text : 0xd1c00000 - 0xd2090e86 (4675 kB) [ 0.000000] Checking if this processor honours the WP bit even in supervisor mode...Ok. [ 0.000000] Preemptible hierarchical RCU implementation. [ 0.000000] NR_IRQS:16 nr_irqs:16 16 [ 0.000000] CPU 0 irqstacks, hard=d0408000 soft=d040a000 [ 0.000000] Console: colour VGA+ 80x25 [ 0.000000] console [tty0] enabled [ 0.000000] bootconsole [earlyser0] disabled [ 0.000000] console [ttyS0] enabled [ 0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.000000] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.000000] ... MAX_LOCK_DEPTH: 48 [ 0.000000] ... MAX_LOCKDEP_KEYS: 8191 [ 0.000000] ... CLASSHASH_SIZE: 4096 [ 0.000000] ... MAX_LOCKDEP_ENTRIES: 32768 [ 0.000000] ... MAX_LOCKDEP_CHAINS: 65536 [ 0.000000] ... CHAINHASH_SIZE: 32768 [ 0.000000] memory used by lock dependency info: 5167 kB [ 0.000000] per task-struct memory footprint: 1920 bytes [ 0.000000] hpet clockevent registered [ 0.000000] tsc: Detected 2693.508 MHz processor [ 0.008000] Calibrating delay loop (skipped) preset value.. 5387.01 BogoMIPS (lpj=10774032) [ 0.008007] pid_max: default: 32768 minimum: 301 [ 0.009113] ACPI: Core revision 20140627 [ 0.013518] ACPI: All ACPI Tables successfully acquired [ 0.014878] ACPI: setting ELCR to 0200 (from 0c00) [ 0.016083] Security Framework initialized [ 0.017095] Yama: becoming mindful. [ 0.018064] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes) [ 0.019455] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes) [ 0.020702] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 0.020702] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 0.020702] tlb_flushall_shift: 6 [ 0.024006] CPU: Intel Common KVM processor (fam: 0f, model: 06, stepping: 01) [ 0.030312] Performance Events: unsupported Netburst CPU model 6 no PMU driver, software events only. [ 0.032882] Getting VERSION: 1050014 [ 0.033818] Getting VERSION: 1050014 [ 0.034739] Getting ID: 0 [ 0.036018] Getting ID: f000000 [ 0.036892] Getting LVT0: 8700 [ 0.037747] Getting LVT1: 8400 [ 0.038613] enabled ExtINT on CPU#0 [ 0.039533] Using local APIC timer interrupts. [ 0.039533] calibrating APIC timer ... [ 0.044000] ... lapic delta = 6248994 [ 0.044000] ... PM-Timer delta = 357894 [ 0.044000] ... PM-Timer result ok [ 0.044000] ..... delta 6248994 [ 0.044000] ..... mult: 268392248 [ 0.044000] ..... calibration result: 3999356 [ 0.044000] ..... CPU clock speed is 2693.0193 MHz. [ 0.044000] ..... host bus clock speed is 999.3356 MHz. [ 0.044763] evm: security.capability [ 0.046679] regulator-dummy: no parameters [ 0.048000] NET: Registered protocol family 16 [ 0.048625] cpuidle: using governor ladder [ 0.049655] cpuidle: using governor menu [ 0.052004] ACPI: bus type PCI registered [ 0.053237] PCI : PCI BIOS area is rw and x. Use pci=nobios if you want it NX. [ 0.055046] PCI: PCI BIOS revision 2.10 entry at 0xfd456, last bus=0 [ 0.056003] PCI: Using configuration type 1 for base access [ 0.063155] ACPI: Added _OSI(Module Device) [ 0.064005] ACPI: Added _OSI(Processor Device) [ 0.065075] ACPI: Added _OSI(3.0 _SCP Extensions) [ 0.066186] ACPI: Added _OSI(Processor Aggregator Device) [ 0.077105] ACPI: Interpreter enabled [ 0.078084] ACPI: (supports S0 S5) [ 0.078993] ACPI: Using PIC for interrupt routing [ 0.080054] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 0.093150] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 0.094502] acpi PNP0A03:00: _OSC: OS supports [Segments] [ 0.095762] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 0.096297] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 0.100106] PCI host bridge to bus 0000:00 [ 0.101128] pci_bus 0000:00: root bus resource [bus 00-ff] [ 0.102353] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7] [ 0.103680] pci_bus 0000:00: root bus resource [io 0x0d00-0xadff] [ 0.104005] pci_bus 0000:00: root bus resource [io 0xae0f-0xaeff] [ 0.105328] pci_bus 0000:00: root bus resource [io 0xaf20-0xafdf] [ 0.106658] pci_bus 0000:00: root bus resource [io 0xafe4-0xffff] [ 0.108005] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff] [ 0.109441] pci_bus 0000:00: root bus resource [mem 0x14000000-0xfebfffff] [ 0.110952] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 0.112716] pci 0000:00:01.0: [8086:7000] type 00 class 0x060100 [ 0.116024] pci 0000:00:01.1: [8086:7010] type 00 class 0x010180 [ 0.120006] pci 0000:00:01.1: reg 0x20: [io 0xc040-0xc04f] [ 0.122292] pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7] [ 0.123772] pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io 0x03f6] [ 0.124005] pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177] [ 0.125476] pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io 0x0376] [ 0.128408] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 0.130121] pci 0000:00:01.3: quirk: [io 0x0600-0x063f] claimed by PIIX4 ACPI [ 0.131929] pci 0000:00:01.3: quirk: [io 0x0700-0x070f] claimed by PIIX4 SMB [ 0.132458] pci 0000:00:02.0: [1013:00b8] type 00 class 0x030000 [ 0.136644] pci 0000:00:02.0: reg 0x10: [mem 0xfc000000-0xfdffffff pref] [ 0.139296] pci 0000:00:02.0: reg 0x14: [mem 0xfebf0000-0xfebf0fff] [ 0.146444] pci 0000:00:02.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 0.148453] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 0.150734] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 0.152975] pci 0000:00:03.0: reg 0x14: [io 0xc000-0xc03f] [ 0.158838] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 0.160426] pci 0000:00:04.0: [8086:25ab] type 00 class 0x088000 [ 0.162254] pci 0000:00:04.0: reg 0x10: [mem 0xfebf1000-0xfebf100f] [ 0.167633] pci_bus 0000:00: on NUMA node 0 [ 0.168949] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 0.170803] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 0.173086] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 0.174931] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 0.176985] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 0.179139] ACPI: Enabled 16 GPEs in block 00 to 0F [ 0.180329] vgaarb: device added: PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none [ 0.182395] vgaarb: loaded [ 0.183199] vgaarb: bridge control possible 0000:00:02.0 [ 0.184256] SCSI subsystem initialized [ 0.185330] pps_core: LinuxPPS API ver. 1 registered [ 0.186465] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giome...@linux.it> [ 0.188018] PTP clock support registered [ 0.189040] PCI: Using ACPI for IRQ routing [ 0.190062] PCI: pci_cache_line_size set to 64 bytes [ 0.192142] e820: reserve RAM buffer [mem 0x0009fc00-0x0009ffff] [ 0.193437] e820: reserve RAM buffer [mem 0x13ffe000-0x13ffffff] [ 0.196166] Bluetooth: Core ver 2.19 [ 0.197141] NET: Registered protocol family 31 [ 0.198196] Bluetooth: HCI device and connection manager initialized [ 0.199568] Bluetooth: HCI socket layer initialized [ 0.200009] Bluetooth: L2CAP socket layer initialized [ 0.201194] Bluetooth: SCO socket layer initialized [ 0.202344] NET: Registered protocol family 8 [ 0.204004] NET: Registered protocol family 20 [ 0.205469] Switched to clocksource kvm-clock [ 0.206874] FS-Cache: Loaded [ 0.207760] pnp: PnP ACPI init [ 0.208000] pnp 00:00: Plug and Play ACPI device, IDs PNP0b00 (active) [ 0.208785] pnp 00:01: Plug and Play ACPI device, IDs PNP0303 (active) [ 0.210254] pnp 00:02: Plug and Play ACPI device, IDs PNP0f13 (active) [ 0.211712] pnp 00:03: [dma 2] [ 0.212619] pnp 00:03: Plug and Play ACPI device, IDs PNP0700 (active) [ 0.214117] pnp 00:04: Plug and Play ACPI device, IDs PNP0400 (active) [ 0.215622] pnp 00:05: Plug and Play ACPI device, IDs PNP0501 (active) [ 0.217630] pnp: PnP ACPI: found 6 devices [ 0.218668] PnPBIOS: Disabled [ 0.559340] mdacon: MDA with 8K of memory detected. [ 0.559459] Console: switching consoles 13-16 to MDA-2 [ 0.596760] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7] [ 0.598222] pci_bus 0000:00: resource 5 [io 0x0d00-0xadff] [ 0.599685] pci_bus 0000:00: resource 6 [io 0xae0f-0xaeff] [ 0.601137] pci_bus 0000:00: resource 7 [io 0xaf20-0xafdf] [ 0.602595] pci_bus 0000:00: resource 8 [io 0xafe4-0xffff] [ 0.604149] pci_bus 0000:00: resource 9 [mem 0x000a0000-0x000bffff] [ 0.605714] pci_bus 0000:00: resource 10 [mem 0x14000000-0xfebfffff] [ 0.607413] NET: Registered protocol family 2 [ 0.609222] TCP established hash table entries: 4096 (order: 2, 16384 bytes) [ 0.611009] TCP bind hash table entries: 4096 (order: 5, 180224 bytes) [ 0.612949] TCP: Hash tables configured (established 4096 bind 4096) [ 0.614847] TCP: reno registered [ 0.615891] UDP hash table entries: 256 (order: 2, 24576 bytes) [ 0.617454] UDP-Lite hash table entries: 256 (order: 2, 24576 bytes) [ 0.619335] NET: Registered protocol family 1 [ 0.620599] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 0.622142] pci 0000:00:01.0: PIIX3: Enabling Passive Release [ 0.623658] pci 0000:00:01.0: Activating ISA DMA hang workarounds [ 0.625255] pci 0000:00:02.0: Boot video device [ 0.626566] PCI: CLS 0 bytes, default 64 [ 0.628050] Unpacking initramfs... [ 0.632409] Initramfs unpacking failed: junk in compressed archive [ 0.635014] BUG: unable to handle kernel NULL pointer dereference at 0000000c [ 0.636946] IP: [<d1c52d71>] validate_chain.isra.37+0xc5/0x10e5 [ 0.638357] *pdpt = 0000000000000000 *pde = f000ff53f000ff53 [ 0.638357] Oops: 0000 [#1] PREEMPT [ 0.638357] Modules linked in: [ 0.638357] CPU: 0 PID: 1 Comm: swapper Not tainted 3.16.0-rc6-next-20140724 #89 [ 0.638357] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 0.638357] task: d044a010 ti: d044c000 task.ti: d044c000 [ 0.638357] EIP: 0060:[<d1c52d71>] EFLAGS: 00010086 CPU: 0 [ 0.638357] EIP is at validate_chain.isra.37+0xc5/0x10e5 [ 0.638357] EAX: 00000000 EBX: 0000000e ECX: 00000000 EDX: fffffffc [ 0.638357] ESI: d044a4f4 EDI: d2883348 EBP: d044dd6c ESP: d044dd08 [ 0.638357] DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068 [ 0.638357] CR0: 8005003b CR2: 0000000c CR3: 12467000 CR4: 000006b0 [ 0.638357] Stack: [ 0.638357] 0000000e d044dd14 d1c243ae d044dd1c d1c07d05 d044dd48 d28a27e0 d044a4f4 [ 0.638357] 00000001 d044a010 00000000 00000000 00000000 00000000 d044a010 0000000e [ 0.638357] d044dd64 d1c489f8 25d94f2b 00000000 00000000 d044a010 0000000e d044a010 [ 0.638357] Call Trace: [ 0.638357] [<d1c243ae>] ? kvm_clock_read+0x13/0x24 [ 0.638357] [<d1c07d05>] ? sched_clock+0x8/0xb [ 0.638357] [<d1c489f8>] ? sched_clock_cpu+0xb1/0xd0 [ 0.638357] [<d1c54cf2>] __lock_acquire+0x350/0xaa5 [ 0.638357] [<d1c243ae>] ? kvm_clock_read+0x13/0x24 [ 0.638357] [<d1c07d05>] ? sched_clock+0x8/0xb [ 0.638357] [<d1c24e2e>] ? pvclock_clocksource_read+0xbb/0x149 [ 0.638357] [<d1c55b97>] lock_acquire+0x77/0x92 [ 0.638357] [<d1c9324f>] ? free_pcppages_bulk+0x1f/0x30b [ 0.638357] [<d208e83c>] _raw_spin_lock+0x3c/0x69 [ 0.638357] [<d1c9324f>] ? free_pcppages_bulk+0x1f/0x30b [ 0.638357] [<d1c9324f>] free_pcppages_bulk+0x1f/0x30b [ 0.638357] [<d1c92018>] ? free_pages_prepare+0xc1/0xea [ 0.638357] [<d1c936e8>] free_hot_cold_page+0x123/0x164 [ 0.638357] [<d1c9373c>] __free_pages.part.74+0x13/0x18 [ 0.638357] [<d1c9374f>] __free_pages+0xe/0x10 [ 0.638357] [<d1c937b0>] free_reserved_area+0x5f/0xdc [ 0.638357] [<d1c27ca1>] ? set_memory_rw+0x48/0x4a [ 0.638357] [<d1c250f0>] free_init_pages+0x5b/0x7e [ 0.638357] [<d23f9d90>] ? maybe_link.part.2+0xe4/0xe4 [ 0.638357] [<d23f9d90>] ? maybe_link.part.2+0xe4/0xe4 [ 0.638357] [<d2406bd3>] free_initrd_mem+0x26/0x2a [ 0.638357] [<d23f9e67>] populate_rootfs+0xd7/0xf9 [ 0.638357] [<d23f9d90>] ? maybe_link.part.2+0xe4/0xe4 [ 0.638357] [<d1c00426>] do_one_initcall+0x7f/0x1b9 [ 0.638357] [<d23f9d90>] ? maybe_link.part.2+0xe4/0xe4 [ 0.638357] [<d1c54658>] ? trace_hardirqs_on_caller+0xeb/0x1af [ 0.638357] [<d1c41d8a>] ? parameq+0x13/0x5e [ 0.638357] [<d23f859b>] ? repair_env_string+0x12/0x51 [ 0.638357] [<d1c41fbe>] ? parse_args+0x1e9/0x319 [ 0.638357] [<d1c3c5ca>] ? __usermodehelper_set_disable_depth+0x3e/0x44 [ 0.638357] [<d23f8d09>] kernel_init_freeable+0xde/0x178 [ 0.638357] [<d23f8589>] ? initcall_blacklist+0x81/0x81 [ 0.638357] [<d20830d0>] kernel_init+0xb/0xc7 [ 0.638357] [<d1c46f06>] ? schedule_tail+0xc/0x3a [ 0.638357] [<d208f640>] ret_from_kernel_thread+0x20/0x30 [ 0.638357] [<d20830c5>] ? rest_init+0xb5/0xb5 [ 0.638357] Code: 89 4d c4 39 c7 74 41 8b 4d c8 33 48 0c 8b 50 08 31 da 09 d1 0f 84 59 03 00 00 8b 55 c4 89 75 b8 8b 45 c8 89 45 c4 eb 13 8b 4d c4 <33> 48 0c 8b 70 08 31 de 09 f1 0f 84 38 03 00 00 8b 42 04 8d 50 [ 0.638357] EIP: [<d1c52d71>] validate_chain.isra.37+0xc5/0x10e5 SS:ESP 0068:d044dd08 [ 0.638357] CR2: 000000000000000c [ 0.638357] ---[ end trace af9f92549db6e569 ]--- [ 0.638357] note: swapper[1] exited with preempt_count 1 [ 0.734957] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009 [ 0.734957] [ 0.737734] Rebooting in 10 seconds.. Elapsed time: 5 qemu-system-x86_64 -cpu kvm64 -enable-kvm -kernel /kernel/i386-randconfig-ib1-07251153/1a58d9909611972fd1c081bb04a9f7dc2571e612/vmlinuz-3.16.0-rc6-next-20140724 -append 'hung_task_panic=1 earlyprintk=ttyS0,115200 debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=10 softlockup_panic=1 nmi_watchdog=panic prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kbuild-tests/run-queue/kvm/i386-randconfig-ib1-07251153/next:master:1a58d9909611972fd1c081bb04a9f7dc2571e612:bisect-linux-9/.vmlinuz-1a58d9909611972fd1c081bb04a9f7dc2571e612-20140725121947-2-ivb42 branch=next/master BOOT_IMAGE=/kernel/i386-randconfig-ib1-07251153/1a58d9909611972fd1c081bb04a9f7dc2571e612/vmlinuz-3.16.0-rc6-next-20140724 drbd.minor_count=8' -initrd /kernel-tests/initrd/quantal-core-i386.cgz -m 320 -smp 2 -net nic,vlan=1,model=e1000 -net user,vlan=1 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -pidfile /dev/shm/kboot/pid-quantal-ivb42-98 -serial file:/dev/shm/kboot/serial-quantal-ivb42-98 -daemonize -display none -monitor null
