Hello
The following was done with a vanilla 2.6.34-rc2 kernel.
The bug was not present in 2.6.30.5.
regards
Jan
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 2.6.34-rc2 (root@debian) (gcc version 4.4.3
20100108 (prerelease) (Debian 4.4.2-9) ) #4 SMP Fri Mar 26 18:40:26 CET 2010
[ 0.000000] Command line: root=/dev/sda3 ro console=ttyS0,19200
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
[ 0.000000] BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
[ 0.000000] BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
[ 0.000000] BIOS-e820: 0000000000100000 - 000000007fff0000 (usable)
[ 0.000000] BIOS-e820: 000000007fff0000 - 000000007fff3000 (ACPI NVS)
[ 0.000000] BIOS-e820: 000000007fff3000 - 0000000080000000 (ACPI data)
[ 0.000000] BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
[ 0.000000] BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] DMI 2.3 present.
[ 0.000000] Phoenix BIOS detected: BIOS may corrupt low RAM, working
around it.
[ 0.000000] No AGP bridge found
[ 0.000000] last_pfn = 0x7fff0 max_arch_pfn = 0x400000000
[ 0.000000] x86 PAT enabled: cpu 0, old 0x7040600070406, new
0x7010600070106
[ 0.000000] init_memory_mapping: 0000000000000000-000000007fff0000
[ 0.000000] ACPI: RSDP 00000000000f7c60 00014 (v00 Nvidia)
[ 0.000000] ACPI: RSDT 000000007fff3040 00030 (v01 Nvidia AWRDACPI
42302E31 AWRD 00000000)
[ 0.000000] ACPI: FACP 000000007fff30c0 00074 (v01 Nvidia AWRDACPI
42302E31 AWRD 00000000)
[ 0.000000] ACPI: DSDT 000000007fff3180 06A16 (v01 NVIDIA AWRDACPI
00001000 MSFT 0100000E)
[ 0.000000] ACPI: FACS 000000007fff0000 00040
[ 0.000000] ACPI: SSDT 000000007fff9cc0 000D6 (v01 PTLTD POWERNOW
00000001 LTP 00000001)
[ 0.000000] ACPI: MCFG 000000007fff9e00 0003C (v01 Nvidia AWRDACPI
42302E31 AWRD 00000000)
[ 0.000000] Scanning NUMA topology in Northbridge 24
[ 0.000000] No NUMA configuration found
[ 0.000000] Faking a node at 0000000000000000-000000007fff0000
[ 0.000000] Initmem setup node 0 0000000000000000-000000007fff0000
[ 0.000000] NODE_DATA [0000000001891180 - 000000000189617f]
[ 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[2] active PFN ranges
[ 0.000000] 0: 0x00000010 -> 0x0000009f
[ 0.000000] 0: 0x00000100 -> 0x0007fff0
[ 0.000000] Nvidia board detected. Ignoring ACPI timer override.
[ 0.000000] If you got timer trouble try acpi_use_timer_override
[ 0.000000] ACPI: PM-Timer IO Port: 0x4008
[ 0.000000] SMP: Allowing 1 CPUs, 0 hotplug CPUs
[ 0.000000] PM: Registered nosave memory: 000000000009f000 -
00000000000a0000
[ 0.000000] PM: Registered nosave memory: 00000000000a0000 -
00000000000f0000
[ 0.000000] PM: Registered nosave memory: 00000000000f0000 -
0000000000100000
[ 0.000000] Allocating PCI resources starting at 80000000 (gap:
80000000:60000000)
[ 0.000000] Booting paravirtualized kernel on bare hardware
[ 0.000000] setup_percpu: NR_CPUS:512 nr_cpumask_bits:512
nr_cpu_ids:1 nr_node_ids:1
[ 0.000000] PERCPU: Embedded 29 pages/cpu @ffff880001a00000 s88616
r8192 d21976 u2097152
[ 0.000000] pcpu-alloc: s88616 r8192 d21976 u2097152 alloc=1*2097152
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Node order, mobility grouping on.
Total pages: 516991
[ 0.000000] Policy zone: DMA32
[ 0.000000] Kernel command line: root=/dev/sda3 ro console=ttyS0,19200
[ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.000000] Checking aperture...
[ 0.000000] No AGP bridge found
[ 0.000000] Node 0: aperture @ 342000000 size 32 MB
[ 0.000000] Aperture beyond 4GB. Ignoring.
[ 0.000000] Subtract (37 early reservations)
[ 0.000000] #1 [0001000000 - 0001890564] TEXT DATA BSS
[ 0.000000] #2 [000009f800 - 0000100000] BIOS reserved
[ 0.000000] #3 [0001891000 - 000189115d] BRK
[ 0.000000] #4 [0000010000 - 0000012000] TRAMPOLINE
[ 0.000000] #5 [0000012000 - 0000016000] ACPI WAKEUP
[ 0.000000] #6 [0000016000 - 0000018000] PGTABLE
[ 0.000000] #7 [0001891180 - 0001896180] NODE_DATA
[ 0.000000] #8 [0001896180 - 0001897180] BOOTMEM
[ 0.000000] #9 [0001890580 - 0001890700] BOOTMEM
[ 0.000000] #10 [0002098000 - 0002099000] BOOTMEM
[ 0.000000] #11 [0002099000 - 000209a000] BOOTMEM
[ 0.000000] #12 [0002200000 - 0003e00000] MEMMAP 0
[ 0.000000] #13 [0001890700 - 0001890880] BOOTMEM
[ 0.000000] #14 [0001897180 - 00018a3180] BOOTMEM
[ 0.000000] #15 [00018a4000 - 00018a5000] BOOTMEM
[ 0.000000] #16 [0001890880 - 0001890a78] BOOTMEM
[ 0.000000] #17 [0001890a80 - 0001890ae8] BOOTMEM
[ 0.000000] #18 [0001890b00 - 0001890b68] BOOTMEM
[ 0.000000] #19 [0001890b80 - 0001890be8] BOOTMEM
[ 0.000000] #20 [0001890c00 - 0001890c68] BOOTMEM
[ 0.000000] #21 [0001890c80 - 0001890ce8] BOOTMEM
[ 0.000000] #22 [0001890d00 - 0001890d68] BOOTMEM
[ 0.000000] #23 [0001890d80 - 0001890de8] BOOTMEM
[ 0.000000] #24 [0001890e00 - 0001890e68] BOOTMEM
[ 0.000000] #25 [0001890e80 - 0001890ea0] BOOTMEM
[ 0.000000] #26 [0001890ec0 - 0001890ee6] BOOTMEM
[ 0.000000] #27 [0001890f00 - 0001890f26] BOOTMEM
[ 0.000000] #28 [0001a00000 - 0001a1d000] BOOTMEM
[ 0.000000] #29 [0001890f40 - 0001890f48] BOOTMEM
[ 0.000000] #30 [0001890f80 - 0001890f88] BOOTMEM
[ 0.000000] #31 [0001890fc0 - 0001890fc4] BOOTMEM
[ 0.000000] #32 [00018a3180 - 00018a3188] BOOTMEM
[ 0.000000] #33 [00018a31c0 - 00018a3310] BOOTMEM
[ 0.000000] #34 [00018a3340 - 00018a33c0] BOOTMEM
[ 0.000000] #35 [00018a33c0 - 00018a3440] BOOTMEM
[ 0.000000] #36 [00018a5000 - 00018ad000] BOOTMEM
[ 0.000000] Memory: 2058924k/2097088k available (3094k kernel code,
452k absent, 37712k reserved, 3638k data, 616k init)
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] NR_IRQS:33024 nr_irqs:256
[ 0.000000] Console: colour VGA+ 80x25
[ 0.000000] console [ttyS0] enabled
[ 0.000000] Fast TSC calibration using PIT
[ 0.000000] Detected 2010.186 MHz processor.
[ 0.012005] Calibrating delay loop (skipped), value calculated using
timer frequency.. 4020.37 BogoMIPS (lpj=8040744)
[ 0.020141] Security Framework initialized
[ 0.024006] SELinux: Disabled at boot.
[ 0.028210] Dentry cache hash table entries: 262144 (order: 9,
2097152 bytes)
[ 0.033366] Inode-cache hash table entries: 131072 (order: 8, 1048576
bytes)
[ 0.036694] Mount-cache hash table entries: 256
[ 0.040179] Initializing cgroup subsys ns
[ 0.044005] Initializing cgroup subsys cpuacct
[ 0.048006] Initializing cgroup subsys devices
[ 0.052003] Initializing cgroup subsys freezer
[ 0.056003] Initializing cgroup subsys net_cls
[ 0.060059] mce: CPU supports 5 MCE banks
[ 0.064012] Performance Events: AMD PMU driver.
[ 0.072004] ... version: 0
[ 0.076002] ... bit width: 48
[ 0.080002] ... generic registers: 4
[ 0.084002] ... value mask: 0000ffffffffffff
[ 0.088002] ... max period: 00007fffffffffff
[ 0.092002] ... fixed-purpose events: 0
[ 0.096002] ... event mask: 000000000000000f
[ 0.100024] SMP alternatives: switching to UP code
[ 0.110450] Freeing SMP alternatives: 25k freed
[ 0.112019] ACPI: Core revision 20100121
[ 0.126062] ACPI: setting ELCR to 0200 (from 0828)
[ 0.132031] Setting APIC routing to flat
[ 0.136003] weird, boot CPU (#0) not listed by the BIOS.
[ 0.140001] SMP motherboard not detected.
[ 0.144012] BUG: unable to handle kernel NULL pointer dereference at
0000000000000025
[ 0.148000] IP: [<ffffffff81199c96>] dmar_ir_support+0xb/0x14
[ 0.148000] PGD 0
[ 0.148000] Oops: 0000 [#1] SMP
[ 0.148000] last sysfs file:
[ 0.148000] CPU 0
[ 0.148000] Modules linked in:
[ 0.148000]
[ 0.148000] Pid: 1, comm: swapper Not tainted 2.6.34-rc2 #4 A8N-SLI
Premium/System Product Name
[ 0.148000] RIP: 0010:[<ffffffff81199c96>] [<ffffffff81199c96>]
dmar_ir_support+0xb/0x14
[ 0.148000] RSP: 0018:ffff88007fbe3e30 EFLAGS: 00010046
[ 0.148000] RAX: 0000000000000000 RBX: 0000000000000000 RCX:
000000000000004c
[ 0.148000] RDX: ffffffff81762338 RSI: 0000000000000046 RDI:
0000000000000010
[ 0.148000] RBP: ffff88007fbe3e30 R08: 0000000000000002 R09:
000000000000000a
[ 0.148000] R10: 0000000000000005 R11: 0000000000000000 R12:
0000000000000010
[ 0.148000] R13: 0000000000000246 R14: 0000000000000000 R15:
000000000000e850
[ 0.148000] FS: 0000000000000000(0000) GS:ffff880001a00000(0000)
knlGS:0000000000000000
[ 0.148000] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 0.148000] CR2: 0000000000000025 CR3: 0000000001625000 CR4:
00000000000006f0
[ 0.148000] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 0.148000] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[ 0.148000] Process swapper (pid: 1, threadinfo ffff88007fbe2000,
task ffff88007fbde740)
[ 0.148000] Stack:
[ 0.148000] ffff88007fbe3e40 ffffffff816d1f01 ffff88007fbe3e50
ffffffff816b7fa6
[ 0.148000] <0> ffff88007fbe3ea0 ffffffff816b8095 ffff88007fbe3ec0
ffffffff8130122e
[ 0.148000] <0> ffff880000000008 ffff88007fbe3ed0 ffffffff8168ec20
0000000000000200
[ 0.148000] Call Trace:
[ 0.148000] [<ffffffff816d1f01>] intr_remapping_supported+0x12/0x45
[ 0.148000] [<ffffffff816b7fa6>] enable_IR+0x9/0x5d
[ 0.148000] [<ffffffff816b8095>] enable_IR_x2apic+0x9b/0x1b6
[ 0.148000] [<ffffffff8130122e>] ? printk+0x3c/0x3e
[ 0.148000] [<ffffffff816b81f7>] APIC_init_uniprocessor+0x47/0x105
[ 0.148000] [<ffffffff816b62cf>] native_smp_prepare_cpus+0x190/0x365
[ 0.148000] [<ffffffff816ab5f5>] kernel_init+0x71/0x1f0
[ 0.148000] [<ffffffff810097e4>] kernel_thread_helper+0x4/0x10
[ 0.148000] [<ffffffff816ab584>] ? kernel_init+0x0/0x1f0
[ 0.148000] [<ffffffff810097e0>] ? kernel_thread_helper+0x0/0x10
[ 0.148000] Code: ff c7 06 00 00 00 00 48 8b 04 fd 80 ba 42 81 eb 0d
c7 06 02 00 00 00 48 c7 c0 e8 30 4a 81 c9 c3 48 8b 05 0e 4c 56 00 55 48
89 e5 <0f> b6 40 25 c9 83 e0 01 c3 55 48 89 e5 e8 7c 8f 16 00 c9 c3 55
[ 0.148000] RIP [<ffffffff81199c96>] dmar_ir_support+0xb/0x14
[ 0.148000] RSP <ffff88007fbe3e30>
[ 0.148000] CR2: 0000000000000025
[ 0.148000] ---[ end trace 4eaa2a86a8e2da22 ]---
[ 0.148000] Kernel panic - not syncing: Attempted to kill init!
[ 0.148000] Pid: 1, comm: swapper Tainted: G D 2.6.34-rc2 #4
[ 0.148000] Call Trace:
[ 0.148000] [<ffffffff81301172>] panic+0x73/0xf3
[ 0.148000] [<ffffffff810ab7da>] ? perf_event_exit_task+0x27/0x12d
[ 0.148000] [<ffffffff810493ef>] do_exit+0x75/0x72d
[ 0.148000] [<ffffffff81046285>] ? spin_unlock_irqrestore+0x9/0xb
[ 0.148000] [<ffffffff81046dde>] ? kmsg_dump+0x126/0x140
[ 0.148000] [<ffffffff8100c8d8>] oops_end+0xba/0xc2
[ 0.148000] [<ffffffff8102c87c>] no_context+0x1f7/0x206
[ 0.148000] [<ffffffff8102ca0a>] __bad_area_nosemaphore+0x17f/0x1a2
[ 0.148000] [<ffffffff8102ca3b>] bad_area_nosemaphore+0xe/0x10
[ 0.148000] [<ffffffff8102cc8b>] do_page_fault+0x12a/0x261
[ 0.148000] [<ffffffff8130304e>] ? common_interrupt+0xe/0x13
[ 0.148000] [<ffffffff81303335>] page_fault+0x25/0x30
[ 0.148000] [<ffffffff81199c96>] ? dmar_ir_support+0xb/0x14
[ 0.148000] [<ffffffff816d1f01>] intr_remapping_supported+0x12/0x45
[ 0.148000] [<ffffffff816b7fa6>] enable_IR+0x9/0x5d
[ 0.148000] [<ffffffff816b8095>] enable_IR_x2apic+0x9b/0x1b6
[ 0.148000] [<ffffffff8130122e>] ? printk+0x3c/0x3e
[ 0.148000] [<ffffffff816b81f7>] APIC_init_uniprocessor+0x47/0x105
[ 0.148000] [<ffffffff816b62cf>] native_smp_prepare_cpus+0x190/0x365
[ 0.148000] [<ffffffff816ab5f5>] kernel_init+0x71/0x1f0
[ 0.148000] [<ffffffff810097e4>] kernel_thread_helper+0x4/0x10
[ 0.148000] [<ffffffff816ab584>] ? kernel_init+0x0/0x1f0
[ 0.148000] [<ffffffff810097e0>] ? kernel_thread_helper+0x0/0x10
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