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From: Lin Ming on 8 Jul 2010 06:10
I just tried latest -tip tree(commit 25fe86a), but it panics.

My machines is Core2 quad core x86_64.
config file attached.

(Ma Ling is included, just to note that this panic is not caused by his
commit 77ff5e4, x86, mem: Optimize memcpy by avoiding memory false
dependece)

[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 2.6.35-rc4-t(mlin(a)minggr) (gcc version 4.3.2 (Debian 4.3.2-1.1) ) #308 SMP Thu Jul 8 16:38:38 CST 2010
[ 0.000000] Command line: root=UUID=09b4dce7-25a0-4dff-9058-0996e03526bb ro console=tty0 console=ttyS0,115200
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: 0000000000000000 - 000000000008f000 (usable)
[ 0.000000] BIOS-e820: 000000000008f000 - 00000000000a0000 (reserved)
[ 0.000000] BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
[ 0.000000] BIOS-e820: 0000000000100000 - 000000007ee48000 (usable)
[ 0.000000] BIOS-e820: 000000007ee48000 - 000000007eeb2000 (ACPI NVS)
[ 0.000000] BIOS-e820: 000000007eeb2000 - 000000007fd86000 (usable)
[ 0.000000] BIOS-e820: 000000007fd86000 - 000000007fd8e000 (reserved)
[ 0.000000] BIOS-e820: 000000007fd8e000 - 000000007fe2c000 (usable)
[ 0.000000] BIOS-e820: 000000007fe2c000 - 000000007fe30000 (reserved)
[ 0.000000] BIOS-e820: 000000007fe30000 - 000000007feab000 (usable)
[ 0.000000] BIOS-e820: 000000007feab000 - 000000007feae000 (ACPI data)
[ 0.000000] BIOS-e820: 000000007feae000 - 000000007fef2000 (ACPI NVS)
[ 0.000000] BIOS-e820: 000000007fef2000 - 000000007feff000 (ACPI data)
[ 0.000000] BIOS-e820: 000000007feff000 - 000000007ff00000 (usable)
[ 0.000000] BIOS-e820: 000000007ff00000 - 0000000080000000 (reserved)
[ 0.000000] BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved)
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] DMI 2.4 present.
[ 0.000000] No AGP bridge found
[ 0.000000] last_pfn = 0x7ff00 max_arch_pfn = 0x400000000
[ 0.000000] x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
[ 0.000000] Scanning 1 areas for low memory corruption
[ 0.000000] modified physical RAM map:
[ 0.000000] modified: 0000000000000000 - 0000000000010000 (reserved)
[ 0.000000] modified: 0000000000010000 - 000000000008f000 (usable)
[ 0.000000] modified: 000000000008f000 - 00000000000a0000 (reserved)
[ 0.000000] modified: 00000000000e0000 - 0000000000100000 (reserved)
[ 0.000000] modified: 0000000000100000 - 000000007ee48000 (usable)
[ 0.000000] modified: 000000007ee48000 - 000000007eeb2000 (ACPI NVS)
[ 0.000000] modified: 000000007eeb2000 - 000000007fd86000 (usable)
[ 0.000000] modified: 000000007fd86000 - 000000007fd8e000 (reserved)
[ 0.000000] modified: 000000007fd8e000 - 000000007fe2c000 (usable)
[ 0.000000] modified: 000000007fe2c000 - 000000007fe30000 (reserved)
[ 0.000000] modified: 000000007fe30000 - 000000007feab000 (usable)
[ 0.000000] modified: 000000007feab000 - 000000007feae000 (ACPI data)
[ 0.000000] modified: 000000007feae000 - 000000007fef2000 (ACPI NVS)
[ 0.000000] modified: 000000007fef2000 - 000000007feff000 (ACPI data)
[ 0.000000] modified: 000000007feff000 - 000000007ff00000 (usable)
[ 0.000000] modified: 000000007ff00000 - 0000000080000000 (reserved)
[ 0.000000] modified: 00000000fff00000 - 0000000100000000 (reserved)
[ 0.000000] found SMP MP-table at [ffff8800000fe200] fe200
[ 0.000000] init_memory_mapping: 0000000000000000-000000007ff00000
[ 0.000000] RAMDISK: 37d48000 - 37ff0000
[ 0.000000] ACPI: RSDP 00000000000fe020 00014 (v00 INTEL )
[ 0.000000] ACPI: RSDT 000000007fefd038 0004C (v01 INTEL D975XBX2 0000095B 01000013)
[ 0.000000] ACPI: FACP 000000007fefc000 00074 (v01 INTEL D975XBX2 0000095B MSFT 01000013)
[ 0.000000] ACPI: DSDT 000000007fef8000 03E66 (v01 INTEL D975XBX2 0000095B MSFT 01000013)
[ 0.000000] ACPI: FACS 000000007feae000 00040
[ 0.000000] ACPI: APIC 000000007fef7000 00078 (v01 INTEL D975XBX2 0000095B MSFT 01000013)
[ 0.000000] ACPI: WDDT 000000007fef6000 00040 (v01 INTEL D975XBX2 0000095B MSFT 01000013)
[ 0.000000] ACPI: MCFG 000000007fef5000 0003C (v01 INTEL D975XBX2 0000095B MSFT 01000013)
[ 0.000000] ACPI: ASF! 000000007fef4000 000A6 (v32 INTEL D975XBX2 0000095B MSFT 01000013)
[ 0.000000] ACPI: SSDT 000000007fef3000 001BC (v01 INTEL CpuPm 0000095B MSFT 01000013)
[ 0.000000] ACPI: SSDT 000000007fef2000 001B7 (v01 INTEL Cpu0Ist 0000095B MSFT 01000013)
[ 0.000000] ACPI: SSDT 000000007fead000 001B7 (v01 INTEL Cpu1Ist 0000095B MSFT 01000013)
[ 0.000000] ACPI: SSDT 000000007feac000 001B7 (v01 INTEL Cpu2Ist 0000095B MSFT 01000013)
[ 0.000000] ACPI: SSDT 000000007feab000 001B7 (v01 INTEL Cpu3Ist 0000095B MSFT 01000013)
[ 0.000000] Zone PFN ranges:
[ 0.000000] DMA 0x00000010 -> 0x00001000
[ 0.000000] DMA32 0x00001000 -> 0x00100000
[ 0.000000] Normal empty
[ 0.000000] Movable zone start PFN for each node
[ 0.000000] early_node_map[6] active PFN ranges
[ 0.000000] 0: 0x00000010 -> 0x0000008f
[ 0.000000] 0: 0x00000100 -> 0x0007ee48
[ 0.000000] 0: 0x0007eeb2 -> 0x0007fd86
[ 0.000000] 0: 0x0007fd8e -> 0x0007fe2c
[ 0.000000] 0: 0x0007fe30 -> 0x0007feab
[ 0.000000] 0: 0x0007feff -> 0x0007ff00
[ 0.000000] ACPI: PM-Timer IO Port: 0x408
[ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x02] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x03] enabled)
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x02] dfl dfl lint[0x1])
[ 0.000000] ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
[ 0.000000] IOAPIC[0]: apic_id 2, version 32, 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 9 global_irq 9 high level)
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] SMP: Allowing 4 CPUs, 0 hotplug CPUs
[ 0.000000] PM: Registered nosave memory: 000000000008f000 - 00000000000a0000
[ 0.000000] PM: Registered nosave memory: 00000000000a0000 - 00000000000e0000
[ 0.000000] PM: Registered nosave memory: 00000000000e0000 - 0000000000100000
[ 0.000000] PM: Registered nosave memory: 000000007ee48000 - 000000007eeb2000
[ 0.000000] PM: Registered nosave memory: 000000007fd86000 - 000000007fd8e000
[ 0.000000] PM: Registered nosave memory: 000000007fe2c000 - 000000007fe30000
[ 0.000000] PM: Registered nosave memory: 000000007feab000 - 000000007feae000
[ 0.000000] PM: Registered nosave memory: 000000007feae000 - 000000007fef2000
[ 0.000000] PM: Registered nosave memory: 000000007fef2000 - 000000007feff000
[ 0.000000] Allocating PCI resources starting at 80000000 (gap: 80000000:7ff00000)
[ 0.000000] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:4 nr_node_ids:1
[ 0.000000] PERCPU: Embedded 28 pages/cpu @ffff880001e00000 s83136 r8192 d23360 u524288
[ 0.000000] pcpu-alloc: s83136 r8192 d23360 u524288 alloc=1*2097152
[ 0.000000] pcpu-alloc: [0] 0 1 2 3
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 516536
[ 0.000000] Kernel command line: root=UUID=09b4dce7-25a0-4dff-9058-0996e03526bb ro console=tty0 console=ttyS0,115200
[ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
[ 0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
[ 0.000000] Checking aperture...
[ 0.000000] No AGP bridge found
[ 0.000000] Subtract (58 early reservations)
[ 0.000000] #1 [0001000000 - 0001c77904] TEXT DATA BSS
[ 0.000000] #2 [0037d48000 - 0037ff0000] RAMDISK
[ 0.000000] #3 [0001c78000 - 0001c7822c] BRK
[ 0.000000] #4 [0000098c00 - 00000fe200] BIOS reserved
[ 0.000000] #5 [00000fe200 - 00000fe210] MP-table mpf
[ 0.000000] #6 [00000fe250 - 0000100000] BIOS reserved
[ 0.000000] #7 [00000fe210 - 00000fe250] MP-table mpc
[ 0.000000] #8 [0000010000 - 0000012000] TRAMPOLINE
[ 0.000000] #9 [0000012000 - 0000016000] ACPI WAKEUP
[ 0.000000] #10 [0000016000 - 0000018000] PGTABLE
[ 0.000000] #11 [0001c78240 - 0001c79240] BOOTMEM
[ 0.000000] #12 [0001c77940 - 0001c77ac0] BOOTMEM
[ 0.000000] #13 [000247a000 - 000247b000] BOOTMEM
[ 0.000000] #14 [000247b000 - 000247c000] BOOTMEM
[ 0.000000] #15 [0002600000 - 0004200000] MEMMAP 0
[ 0.000000] #16 [0001c77ac0 - 0001c77c40] BOOTMEM
[ 0.000000] #17 [0001c79240 - 0001c85240] BOOTMEM
[ 0.000000] #18 [0001c86000 - 0001c87000] BOOTMEM
[ 0.000000] #19 [0001c77c40 - 0001c77c83] BOOTMEM
[ 0.000000] #20 [0001c85240 - 0001c855f8] BOOTMEM
[ 0.000000] #21 [0001c77cc0 - 0001c77d28] BOOTMEM
[ 0.000000] #22 [0001c77d40 - 0001c77da8] BOOTMEM
[ 0.000000] #23 [0001c77dc0 - 0001c77e28] BOOTMEM
[ 0.000000] #24 [0001c77e40 - 0001c77ea8] BOOTMEM
[ 0.000000] #25 [0001c77ec0 - 0001c77f28] BOOTMEM
[ 0.000000] #26 [0001c77f40 - 0001c77fa8] BOOTMEM
[ 0.000000] #27 [0001c85600 - 0001c85668] BOOTMEM
[ 0.000000] #28 [0001c85680 - 0001c856e8] BOOTMEM
[ 0.000000] #29 [0001c85700 - 0001c85768] BOOTMEM
[ 0.000000] #30 [0001c85780 - 0001c857e8] BOOTMEM
[ 0.000000] #31 [0001c85800 - 0001c85868] BOOTMEM
[ 0.000000] #32 [0001c85880 - 0001c858e8] BOOTMEM
[ 0.000000] #33 [0001c85900 - 0001c85968] BOOTMEM
[ 0.000000] #34 [0001c85980 - 0001c859e8] BOOTMEM
[ 0.000000] #35 [0001c85a00 - 0001c85a68] BOOTMEM
[ 0.000000] #36 [0001c85a80 - 0001c85ae8] BOOTMEM
[ 0.000000] #37 [0001c77fc0 - 0001c77fe0] BOOTMEM
[ 0.000000] #38 [0001c85b00 - 0001c85b20] BOOTMEM
[ 0.000000] #39 [0001c85b40 - 0001c85b60] BOOTMEM
[ 0.000000] #40 [0001c85b80 - 0001c85ba0] BOOTMEM
[ 0.000000] #41 [0001c85bc0 - 0001c85be0] BOOTMEM
[ 0.000000] #42 [0001c85c00 - 0001c85c54] BOOTMEM
[ 0.000000] #43 [0001c85c80 - 0001c85cd4] BOOTMEM
[ 0.000000] #44 [0001e00000 - 0001e1c000] BOOTMEM
[ 0.000000] #45 [0001e80000 - 0001e9c000] BOOTMEM
[ 0.000000] #46 [0001f00000 - 0001f1c000] BOOTMEM
[ 0.000000] #47 [0001f80000 - 0001f9c000] BOOTMEM
[ 0.000000] #48 [0001c85d00 - 0001c85d08] BOOTMEM
[ 0.000000] #49 [0001c85d40 - 0001c85d48] BOOTMEM
[ 0.000000] #50 [0001c85d80 - 0001c85d90] BOOTMEM
[ 0.000000] #51 [0001c85dc0 - 0001c85de0] BOOTMEM
[ 0.000000] #52 [0001c85e00 - 0001c85f30] BOOTMEM
[ 0.000000] #53 [0001c85f40 - 0001c85f90] BOOTMEM
[ 0.000000] #54 [0001c89000 - 0001c89050] BOOTMEM
[ 0.000000] #55 [0001c89080 - 0001c91080] BOOTMEM
[ 0.000000] #56 [0001f9c000 - 000219c000] BOOTMEM
[ 0.000000] #57 [0001c91080 - 0001d91080] BOOTMEM
[ 0.000000] Memory: 2046988k/2096128k available (5788k kernel code, 1324k absent, 47816k reserved, 5412k data, 708k init)
[ 0.000000] SLUB: Genslabs=13, HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] CONFIG_RCU_FANOUT set to non-default value of 32
[ 0.000000] RCU-based detection of stalled CPUs is disabled.
[ 0.000000] Verbose stalled-CPUs detection is disabled.
[ 0.000000] NR_IRQS:4352 nr_irqs:712
[ 0.000000] Console: colour VGA+ 80x25
[ 0.000000] console [tty0] enabled
[ 0.000000] console [ttyS0] enabled
[ 0.000000] Fast TSC calibration using PIT
[ 0.000000] Detected 2666.898 MHz processor.
[ 0.003007] Calibrating delay loop (skipped), value calculated using timer frequency.. 5333.79 BogoMIPS (lpj=2666898)
[ 0.005002] pid_max: default: 32768 minimum: 301
[ 0.006022] Security Framework initialized
[ 0.007005] SELinux: Initializing.
[ 0.008016] Mount-cache hash table entries: 256
[ 0.009142] Initializing cgroup subsys ns
[ 0.010005] Initializing cgroup subsys cpuacct
[ 0.011004] Initializing cgroup subsys freezer
[ 0.012021] CPU: Physical Processor ID: 0
[ 0.013002] CPU: Processor Core ID: 0
[ 0.014002] mce: CPU supports 6 MCE banks
[ 0.015007] CPU0: Thermal monitoring enabled (TM2)
[ 0.016003] using mwait in idle threads.
[ 0.017002] Performance Events: PEBS fmt0-, Core2 events, Intel PMU driver.
[ 0.021002] PEBS disabled due to CPU errata.
[ 0.022003] ... version: 2
[ 0.023002] ... bit width: 40
[ 0.024002] ... generic registers: 2
[ 0.025002] ... value mask: 000000ffffffffff
[ 0.026002] ... max period: 000000007fffffff
[ 0.027002] ... fixed-purpose events: 3
[ 0.028002] ... event mask: 0000000700000003
[ 0.029033] ACPI: Core revision 20100428
[ 0.035009] ftrace: converting mcount calls to 0f 1f 44 00 00
[ 0.036004] ftrace: allocating 25526 entries in 101 pages
[ 0.038042] Setting APIC routing to flat
[ 0.039306] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 0.050532] CPU0: Intel(R) Core(TM)2 Quad CPU @ 2.66GHz stepping 07
[ 0.053999] Booting Node 0, Processors #1 #2 #3 Ok.
[ 0.270008] general protection fault: 0000 [#1]
[ 0.271006] Brought up 4 CPUs
[ 0.271009] Total of 4 processors activated (21331.46 BogoMIPS).
[ 0.270999] SMP
[ 0.270999] last sysfs file:
[ 0.270999] CPU 2
[ 0.270999] Modules linked in:
[ 0.270999]
[ 0.270999] Pid: 0, comm: swapper Not tainted 2.6.35-rc4-tip+ #308 D975XBX2/
[ 0.270999] RIP: 0010:[<ffffffff81029dfa>] [<ffffffff81029dfa>] cpu_idle+0xc3/0xe0
[ 0.270999] RSP: 0000:ffff88007f8fbf08 EFLAGS: 00010246
[ 0.270999] RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000
[ 0.270999] RDX: 0000000000000000 RSI: ffff88007f8fbfd8 RDI: 0000000000000001
[ 0.270999] RBP: ffff88007f8fbf28 R08: ffff88007f8fbef8 R09: 0000000000000000
[ 0.270999] R10: ffff88007f8f9de0 R11: ffff88007f8fbfd8 R12: 0000000000000002
[ 0.270999] R13: 000a81a07f8fbfd8 R14: ffffffff81ae73e0 R15: 0000000000000000
[ 0.270999] FS: 0000000000000000(0000) GS:ffff880001f00000(0000) knlGS:0000000000000000
[ 0.270999] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 0.270999] CR2: 0000000000000000 CR3: 0000000001a05000 CR4: 00000000000006e0
[ 0.270999] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 0.270999] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 0.270999] Process swapper (pid: 0, threadinfo ffff88007f8fa000, task ffff88007f8d45c0)
[ 0.270999] Stack:
[ 0.270999] 0000000000000002 0000000000000000 0000000000000000 0000000000000000
[ 0.270999] <0> ffff88007f8fbf48 ffffffff8159a601 0000000000000000 0000000000000000
[ 0.270999] <0> 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 0.270999] Call Trace:
[ 0.270999] [<ffffffff8159a601>] start_secondary+0x1a1/0x1a6
[ 0.270999] Code: c3 10 48 83 3b 00 eb eb 65 0f ba 34 25 80 b1 00 00 00 19 c0 85 c0 74 13 31 d2 be 02 00 00 00 48 c7 c7 00 f2 ba 81 e8 2c 91 57 00 <41> f6 85 38 e0 ff ff 08 0f 84 68 ff ff ff e8 2e bb 05 00 e8 54
[ 0.270999] RIP [<ffffffff81029dfa>] cpu_idle+0xc3/0xe0
[ 0.270999] RSP <ffff88007f8fbf08>
[ 0.270999] general protection fault: 0000 [#2] SMP
[ 0.270999] last sysfs file:
[ 0.270999] CPU 1
[ 0.270999] Modules linked in:
[ 0.270999]
[ 0.270999] Pid: 0, comm: swapper Tainted: G D 2.6.35-rc4-tip+ #308 D975XBX2/
[ 0.270999] RIP: 0010:[<ffffffff81029dfa>] [<ffffffff81029dfa>] cpu_idle+0xc3/0xe0
[ 0.270999] RSP: 0000:ffff88007f8f1f08 EFLAGS: 00010246
[ 0.270999] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
[ 0.270999] RDX: 0000000000000000 RSI: ffff88007f8f1fd8 RDI: 0000000000000001
[ 0.270999] RBP: ffff88007f8f1f28 R08: ffff88007f8f1ef8 R09: 0000000000000000
[ 0.270999] R10: ffff88007f8ebde0 R11: ffff88007f8f1fd8 R12: 0000000000000001
[ 0.270999] R13: 000a81a07f8f1fd8 R14: ffffffff81ae73e0 R15: 0000000000000000
[ 0.270999] FS: 0000000000000000(0000) GS:ffff880001e80000(0000) knlGS:0000000000000000
[ 0.270999] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 0.270999] CR2: 0000000000000000 CR3: 0000000001a05000 CR4: 00000000000006e0
[ 0.270999] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 0.270999] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 0.270999] Process swapper (pid: 0, threadinfo ffff88007f8f0000, task ffff88007f8d2e80)
[ 0.270999] Stack:
[ 0.270999] 0000000000000001 0000000000000000 0000000000000000 0000000000000000
[ 0.270999] <0> ffff88007f8f1f48 ffffffff8159a601 0000000000000000 0000000000000000
[ 0.270999] <0> 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 0.270999] Call Trace:
[ 0.270999] [<ffffffff8159a601>] start_secondary+0x1a1/0x1a6
[ 0.270999] Code: c3 10 48 83 3b 00 eb eb 65 0f ba 34 25 80 b1 00 00 00 19 c0 85 c0 74 13 31 d2 be 02 00 00 00 48 c7 c7 00 f2 ba 81 e8 2c 91 57 00 <41> f6 85 38 e0 ff ff 08 0f 84 68 ff ff ff e8 2e bb 05 00 e8 54
[ 0.270999] RIP [<ffffffff81029dfa>] cpu_idle+0xc3/0xe0
[ 0.270999] RSP <ffff88007f8f1f08>
[ 0.272016] ---[ end trace 4eaa2a86a8e2da22 ]---
[ 0.272023] ---[ end trace 22d1c590b2b05327 ]---
[ 0.272032] Kernel panic - not syncing: Attempted to kill the idle task!
[ 0.272035] Pid: 0, comm: swapper Tainted: G D 2.6.35-rc4-tip+ #308
[ 0.272036] Call Trace:
[ 0.272043] [<ffffffff8159d995>] panic+0xb6/0x130
[ 0.272045] [<ffffffff8159da7b>] ? printk+0x6c/0x6e
[ 0.272049] [<ffffffff8107cf5f>] ? blocking_notifier_call_chain+0x14/0x16
[ 0.272052] [<ffffffff81063e92>] do_exit+0x7d/0x779
[ 0.272054] [<ffffffff8106171b>] ? kmsg_dump+0x138/0x152
[ 0.272057] [<ffffffff815a0d11>] oops_end+0xb7/0xbf
[ 0.272060] [<ffffffff8102e0d5>] die+0x5a/0x63
[ 0.272062] [<ffffffff815a08ad>] do_general_protection+0x12a/0x132
[ 0.272064] [<ffffffff8159ff19>] ? irq_return+0x0/0x2
[ 0.272067] [<ffffffff815a00bf>] gener9] [<ffffffff81029dfa>] ? cpu_idle+0xc3/0xe0
[ 0.272071] [<ffffffff81029da6>] ? cpu_idle+0x6f/0xe0
[ 0.272074] [<ffffffff8159a601>] start_secondary+0x1a1/0x1a6

Lin Ming

From: Ingo Molnar on 8 Jul 2010 06:20

* Lin Ming <ming.m.lin(a)intel.com> wrote:

> I just tried latest -tip tree(commit 25fe86a), but it panics.

These commits might be relevant:

bdc802d: x86, cpu: Support the features flags in new CPUID leaf 7
83a7a2a: x86, alternatives: Use 16-bit numbers for cpufeature index
24da9c2: x86, cpu: Add CPU flags for F16C and RDRND

So you could try reverting them. If that doesnt work out please try to bisect
it.

Thanks,

Ingo
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From: Lin Ming on 8 Jul 2010 09:30
On Thu, 2010-07-08 at 18:17 +0800, Ingo Molnar wrote:
> * Lin Ming <ming.m.lin(a)intel.com> wrote:
>
> > I just tried latest -tip tree(commit 25fe86a), but it panics.
>
> These commits might be relevant:
>
> bdc802d: x86, cpu: Support the features flags in new CPUID leaf 7
> 83a7a2a: x86, alternatives: Use 16-bit numbers for cpufeature index
> 24da9c2: x86, cpu: Add CPU flags for F16C and RDRND

Still panics.

>
> So you could try reverting them. If that doesnt work out please try to bisect
> it.

Will bisect tomorrow when I back to office.

Lin Ming

>
> Thanks,
>
> Ingo


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