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Message-Id: <200909292018.12989.kernel@kolivas.org> Date: Tue, 29 Sep 2009 20:18:12 +1000 From: Con Kolivas <kernel@...ivas.org> To: linux-kernel@...r.kernel.org Cc: avi@...hat.com, kvm@...r.kernel.org Subject: Re: Stack corruption on 2.6.31 [with KVM] Resending with a couple of extra CCs. Only extra details I guess were debian stable with kvm that reports itself as: QEMU PC emulator version 0.9.1 (kvm-72), Copyright (c) 2003-2008 Fabrice Bellard Note that I get this stack corruption *every time*, and it must be with the -no-kvm option. Con On Sun, 27 Sep 2009 08:16:10 you wrote: > Hi I've had a stack corruption error on 2.6.31 on x86_64 kvm > with the following options: > > kvm -smp 4 -kernel arch/x86/boot/bzImage -s -append > "console=ttyS0,serial=115200" -nographic -no-kvm > > list *get_random_int+0xa5 > 0xffffffff812d5e85 is in get_random_int > (/home/con/kernel/linux-2.6.31/drivers/char/random.c:1678). 1673 > int ret; > 1674 > 1675 keyptr = get_keyptr(); > 1676 hash[0] += current->pid + jiffies + get_cycles(); > 1677 > 1678 ret = half_md4_transform(hash, keyptr->secret); > 1679 put_cpu_var(get_random_int_hash); > 1680 > 1681 return ret; > 1682 } > > dmesg follows: > [ 0.000000] Initializing cgroup subsys cpuset > [ 0.000000] Linux version 2.6.31 (con@duo) (gcc version 4.3.2 (Debian > 4.3.2-1.1) ) #132 SMP PREEMPT Sun Sep 27 08:05:33 EST 2009 [ 0.000000] > Command line: console=ttyS0,serial=115200 > [ 0.000000] KERNEL supported cpus: > [ 0.000000] Intel GenuineIntel > [ 0.000000] AMD AuthenticAMD > [ 0.000000] Centaur CentaurHauls > [ 0.000000] BIOS-provided physical RAM map: > [ 0.000000] BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) > [ 0.000000] BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) > [ 0.000000] BIOS-e820: 00000000000e8000 - 0000000000100000 (reserved) > [ 0.000000] BIOS-e820: 0000000000100000 - 0000000007ff0000 (usable) > [ 0.000000] BIOS-e820: 0000000007ff0000 - 0000000008000000 (ACPI data) > [ 0.000000] BIOS-e820: 00000000fffbd000 - 0000000100000000 (reserved) > [ 0.000000] DMI 2.4 present. > [ 0.000000] last_pfn = 0x7ff0 max_arch_pfn = 0x400000000 > [ 0.000000] x86 PAT enabled: cpu 0, old 0x0, new 0x7010600070106 > [ 0.000000] CPU MTRRs all blank - virtualized system. > [ 0.000000] init_memory_mapping: 0000000000000000-0000000007ff0000 > [ 0.000000] ACPI: RSDP 00000000000fb6c0 00014 (v00 QEMU ) > [ 0.000000] ACPI: RSDT 0000000007ff0000 0002C (v01 QEMU QEMURSDT > 00000001 QEMU 00000001) [ 0.000000] ACPI: FACP 0000000007ff002c 00074 > (v01 QEMU QEMUFACP 00000001 QEMU 00000001) [ 0.000000] ACPI: DSDT > 0000000007ff0100 0253C (v01 BXPC BXDSDT 00000001 INTL 20061109) [ > 0.000000] ACPI: FACS 0000000007ff00c0 00040 > [ 0.000000] ACPI: APIC 0000000007ff2640 000E0 (v01 QEMU QEMUAPIC > 00000001 QEMU 00000001) [ 0.000000] (6 early reservations) ==> bootmem > [0000000000 - 0007ff0000] [ 0.000000] #0 [0000000000 - 0000001000] > BIOS data page ==> [0000000000 - 0000001000] [ 0.000000] #1 > [0000006000 - 0000008000] TRAMPOLINE ==> [0000006000 - 0000008000] [ > 0.000000] #2 [0001000000 - 0005e3d7f0] TEXT DATA BSS ==> [0001000000 > - 0005e3d7f0] [ 0.000000] #3 [000009fc00 - 0000100000] BIOS > reserved ==> [000009fc00 - 0000100000] [ 0.000000] #4 [0005e3e000 - > 0005e3e065] BRK ==> [0005e3e000 - 0005e3e065] [ 0.000000] > #5 [0000008000 - 0000009000] PGTABLE ==> [0000008000 - 0000009000] > [ 0.000000] found SMP MP-table at [ffff8800000fb540] fb540 > [ 0.000000] Zone PFN ranges: > [ 0.000000] DMA 0x00000000 -> 0x00001000 > [ 0.000000] DMA32 0x00001000 -> 0x00100000 > [ 0.000000] Normal 0x00100000 -> 0x00100000 > [ 0.000000] Movable zone start PFN for each node > [ 0.000000] early_node_map[2] active PFN ranges > [ 0.000000] 0: 0x00000000 -> 0x0000009f > [ 0.000000] 0: 0x00000100 -> 0x00007ff0 > [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 > [ 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: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled) > [ 0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x03] enabled) > [ 0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x04] disabled) > [ 0.000000] ACPI: LAPIC (acpi_id[0x05] lapic_id[0x05] disabled) > [ 0.000000] ACPI: LAPIC (acpi_id[0x06] lapic_id[0x06] disabled) > [ 0.000000] ACPI: LAPIC (acpi_id[0x07] lapic_id[0x07] disabled) > [ 0.000000] ACPI: LAPIC (acpi_id[0x08] lapic_id[0x08] disabled) > [ 0.000000] ACPI: LAPIC (acpi_id[0x09] lapic_id[0x09] disabled) > [ 0.000000] ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x0a] disabled) > [ 0.000000] ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x0b] disabled) > [ 0.000000] ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x0c] disabled) > [ 0.000000] ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x0d] disabled) > [ 0.000000] ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x0e] disabled) > [ 0.000000] ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x0f] disabled) > [ 0.000000] ACPI: IOAPIC (id[0x04] address[0xfec00000] gsi_base[0]) > [ 0.000000] IOAPIC[0]: apic_id 4, version 17, address 0xfec00000, GSI > 0-23 [ 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] Using ACPI (MADT) for SMP configuration > information [ 0.000000] SMP: Allowing 16 CPUs, 12 hotplug CPUs > [ 0.000000] Allocating PCI resources starting at 8000000 (gap: > 8000000:f7fbd000) [ 0.000000] NR_CPUS:4096 nr_cpumask_bits:16 > nr_cpu_ids:16 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 29 pages at > ffff880005e44000, static data 88068 bytes [ 0.000000] Built 1 zonelists > in Zone order, mobility grouping on. Total pages: 32043 [ 0.000000] > Kernel command line: console=ttyS0,serial=115200 > [ 0.000000] PID hash table entries: 512 (order: 9, 4096 bytes) > [ 0.000000] Dentry cache hash table entries: 16384 (order: 5, 131072 > bytes) [ 0.000000] Inode-cache hash table entries: 8192 (order: 4, 65536 > bytes) [ 0.000000] Initializing CPU#0 > [ 0.000000] Checking aperture... > [ 0.000000] No AGP bridge found > [ 0.000000] Memory: 46164k/131008k available (4175k kernel code, 388k > absent, 84296k reserved, 4702k data, 496k init) [ 0.000000] Preemptible > RCU implementation. > [ 0.000000] NR_IRQS:4352 > [ 0.000000] Fast TSC calibration using PIT > [ 0.000000] Detected 2994.555 MHz processor. > [ 0.000999] Console: colour VGA+ 80x25 > [ 0.000999] console [ttyS0] enabled > [ 0.000999] allocated 1310720 bytes of page_cgroup > [ 0.000999] please try 'cgroup_disable=memory' option if you don't want > memory cgroups [ 0.003746] Calibrating delay loop (skipped), value > calculated using timer frequency.. 5989.11 BogoMIPS (lpj=2994555) [ > 0.012668] Mount-cache hash table entries: 256 > [ 0.027415] Initializing cgroup subsys debug > [ 0.029469] Initializing cgroup subsys ns > [ 0.031396] Initializing cgroup subsys memory > [ 0.034332] Initializing cgroup subsys devices > [ 0.036344] Initializing cgroup subsys freezer > [ 0.040324] CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 > bytes/line) [ 0.042295] CPU: L2 Cache: 512K (64 bytes/line) > [ 0.044654] mce: CPU supports 0 MCE banks > [ 0.046705] Performance Counters: AMD PMU driver. > [ 0.048461] ... version: 0 > [ 0.049237] ... bit width: 48 > [ 0.050252] ... generic counters: 4 > [ 0.051377] ... value mask: 0000ffffffffffff > [ 0.052243] ... max period: 00007fffffffffff > [ 0.053237] ... fixed-purpose counters: 0 > [ 0.055175] ... counter mask: 000000000000000f > [ 0.070354] ACPI: Core revision 20090521 > [ 0.114687] ftrace: converting mcount calls to 0f 1f 44 00 00 > [ 0.115305] ftrace: allocating 15638 entries in 62 pages > [ 0.125980] BUG: unable to handle kernel paging request at > ffffffff00000001 [ 0.125980] IP: [<ffffffff00000001>] 0xffffffff00000001 > [ 0.125980] PGD 1003067 PUD 0 > [ 0.125980] Thread overran stack, or stack corrupted > [ 0.125980] Oops: 0010 [#1] PREEMPT SMP > [ 0.125980] last sysfs file: > [ 0.125980] CPU 0 > [ 0.125980] Modules linked in: > [ 0.125980] Pid: 0, comm: swapper Not tainted 2.6.31 #132 > [ 0.125980] RIP: 0010:[<ffffffff00000001>] [<ffffffff00000001>] > 0xffffffff00000001 [ 0.125980] RSP: 0018:ffffffff815efc98 EFLAGS: > f3115292 > [ 0.125980] RAX: 00000000f3115290 RBX: 0000000000000000 RCX: > 00000000bb3e4f15 [ 0.125980] RDX: 00000000406f1caf RSI: ffffffff85e30744 > RDI: ffff880005e563b0 [ 0.125980] RBP: ffffffff815efcc8 R08: > 000000004e37d069 R09: 00000000614fede7 [ 0.125980] R10: 0000000000000000 > R11: 0000000000000000 R12: 0000000000000000 [ 0.125980] R13: > 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 0.125980] > FS: 0000000000000000(0000) GS:ffff880005e44000(0000) > knlGS:0000000000000000 [ 0.125980] CS: 0010 DS: 0018 ES: 0018 CR0: > 000000008005003b > [ 0.125980] CR2: ffffffff00000001 CR3: 0000000001001000 CR4: > 00000000000006f0 [ 0.125980] DR0: 0000000000000000 DR1: 0000000000000000 > DR2: 0000000000000000 [ 0.125980] DR3: 0000000000000000 DR6: > 0000000000000000 DR7: 0000000000000000 [ 0.125980] Process swapper (pid: > 0, threadinfo ffffffff815ee000, task ffffffff817214c0) [ 0.125980] > Stack: > [ 0.125980] 0000000000000000 0000000000000000 ffff880006fc2040 > ffffffff817214c0 [ 0.125980] <0> 0000000000800b00 0000000000000000 > ffffffff815efd28 ffffffff812d5e85 [ 0.125980] <0> ffff880005e563b0 > 00000000817d7140 00000000fffb6c9a ffffffff85e30740 [ 0.125980] Call > Trace: > [ 0.125980] [<ffffffff812d5e85>] get_random_int+0xa5/0xf0 > [ 0.125980] [<ffffffff81053899>] copy_process+0x1a9/0x1390 > [ 0.125980] [<ffffffff81054b0a>] do_fork+0x8a/0x420 > [ 0.125980] [<ffffffff81012841>] ? restore_args+0x0/0x30 > [ 0.125980] [<ffffffff81012ea2>] kernel_thread+0x82/0xe0 > [ 0.125980] [<ffffffff818c2da3>] ? kernel_init+0x0/0x1ea > [ 0.125980] [<ffffffff81012f00>] ? child_rip+0x0/0x20 > [ 0.125980] [<ffffffff813fab0c>] ? rest_init+0x1c/0x80 > [ 0.125980] [<ffffffff818c3625>] start_kernel+0x3ea/0x4b0 > [ 0.125980] [<ffffffff818c2ac9>] x86_64_start_reservations+0x99/0xb9 > [ 0.125980] [<ffffffff818c2bee>] x86_64_start_kernel+0x105/0x120 > [ 0.125980] [<ffffffff818c2950>] ? early_idt_handler+0x0/0x71 > [ 0.125980] Code: Bad RIP value. > [ 0.125980] RIP [<ffffffff00000001>] 0xffffffff00000001 > [ 0.125980] RSP <ffffffff815efc98> > [ 0.125980] CR2: ffffffff00000001 > [ 0.125980] ---[ end trace a7919e7f17c0a725 ]--- > [ 0.125980] Kernel panic - not syncing: Attempted to kill the idle task! > [ 0.125980] Pid: 0, comm: swapper Tainted: G D 2.6.31 #132 > [ 0.125980] Call Trace: > [ 0.125980] [<ffffffff8140d6c8>] panic+0xaf/0x176 > [ 0.125980] [<ffffffff8140d7fb>] ? printk+0x6c/0x71 > [ 0.125980] [<ffffffff81059b86>] do_exit+0x736/0x800 > [ 0.125980] [<ffffffff81016a03>] oops_end+0xa3/0xb0 > [ 0.125980] [<ffffffff81036bf0>] no_context+0xf0/0x260 > [ 0.125980] [<ffffffff81036eb5>] __bad_area_nosemaphore+0x155/0x1f0 > [ 0.125980] [<ffffffff810ce0c2>] ? get_page_from_freelist+0x212/0x650 > [ 0.125980] [<ffffffff81036f63>] bad_area_nosemaphore+0x13/0x20 > [ 0.125980] [<ffffffff810373a6>] do_page_fault+0x276/0x320 > [ 0.125980] [<ffffffff814115a5>] page_fault+0x25/0x30 > [ 0.125980] [<ffffffff812d5e85>] get_random_int+0xa5/0xf0 > [ 0.125980] [<ffffffff81053899>] copy_process+0x1a9/0x1390 > [ 0.125980] [<ffffffff81054b0a>] do_fork+0x8a/0x420 > [ 0.125980] [<ffffffff81012841>] ? restore_args+0x0/0x30 > [ 0.125980] [<ffffffff81012ea2>] kernel_thread+0x82/0xe0 > [ 0.125980] [<ffffffff818c2da3>] ? kernel_init+0x0/0x1ea > [ 0.125980] [<ffffffff81012f00>] ? child_rip+0x0/0x20 > [ 0.125980] [<ffffffff813fab0c>] ? rest_init+0x1c/0x80 > [ 0.125980] [<ffffffff818c3625>] start_kernel+0x3ea/0x4b0 > [ 0.125980] [<ffffffff818c2ac9>] x86_64_start_reservations+0x99/0xb9 > [ 0.125980] [<ffffffff818c2bee>] x86_64_start_kernel+0x105/0x120 > [ 0.125980] [<ffffffff818c2950>] ? early_idt_handler+0x0/0x71 > [ 0.125980] general protection fault: fff2 [#2] PREEMPT SMP > [ 0.125980] last sysfs file: > [ 0.125980] CPU 0 > [ 0.125980] Modules linked in: > [ 0.125980] Pid: 0, comm: swapper Tainted: G D 2.6.31 #132 > [ 0.125980] RIP: 0010:[<ffffffff8140d700>] [<ffffffff8140d700>] > panic+0xe7/0x176 [ 0.125980] RSP: 0018:ffffffff815ef8e8 EFLAGS: > f3101246 > [ 0.125980] RAX: 0000000000000000 RBX: ffffffff8154b7a8 RCX: > ffff880005e54688 [ 0.125980] RDX: 0000000000000000 RSI: 0000000000000000 > RDI: 00000000f3101046 [ 0.125980] RBP: ffffffff815ef9c8 R08: > 0000000000000000 R09: 0000000000000000 [ 0.125980] R10: 000000000000000a > R11: 0000000000000000 R12: ffffffff817214c0 [ 0.125980] R13: > ffffffff00000001 R14: ffffffff817214c0 R15: 00000000f3101092 [ 0.125980] > FS: 0000000000000000(0000) GS:ffff880005e44000(0000) > knlGS:0000000000000000 [ 0.125980] CS: 0010 DS: 0018 ES: 0018 CR0: > 000000008005003b > [ 0.125980] CR2: ffffffff00000001 CR3: 0000000001001000 CR4: > 00000000000006f0 [ 0.125980] DR0: 0000000000000000 DR1: 0000000000000000 > DR2: 0000000000000000 [ 0.125980] DR3: 0000000000000000 DR6: > 0000000000000000 DR7: 0000000000000000 [ 0.125980] Process swapper (pid: > 0, threadinfo ffffffff815ee000, task ffffffff817214c0) [ 0.125980] > Stack: > [ 0.125980] 0000003000000008 ffffffff815ef9d8 ffffffff815ef908 > 0000000000000000 [ 0.125980] <0> 0000000000000000 00000000f3101086 > 0000000000000000 0000000000000000 [ 0.125980] <0> 00000000ffffffff > 0000000000000000 ffffffff817214c0 00000000f3101092 [ 0.125980] Call > Trace: > [ 0.125980] [<ffffffff8140d7fb>] ? printk+0x6c/0x71 > [ 0.125980] [<ffffffff81059b86>] do_exit+0x736/0x800 > [ 0.125980] [<ffffffff81016a03>] oops_end+0xa3/0xb0 > [ 0.125980] [<ffffffff81036bf0>] no_context+0xf0/0x260 > [ 0.125980] [<ffffffff81036eb5>] __bad_area_nosemaphore+0x155/0x1f0 > [ 0.125980] [<ffffffff810ce0c2>] ? get_page_from_freelist+0x212/0x650 > [ 0.125980] [<ffffffff81036f63>] bad_area_nosemaphore+0x13/0x20 > [ 0.125980] [<ffffffff810373a6>] do_page_fault+0x276/0x320 > [ 0.125980] [<ffffffff814115a5>] page_fault+0x25/0x30 > [ 0.125980] [<ffffffff812d5e85>] get_random_int+0xa5/0xf0 > [ 0.125980] [<ffffffff81053899>] copy_process+0x1a9/0x1390 > [ 0.125980] [<ffffffff81054b0a>] do_fork+0x8a/0x420 > [ 0.125980] [<ffffffff81012841>] ? restore_args+0x0/0x30 > [ 0.125980] [<ffffffff81012ea2>] kernel_thread+0x82/0xe0 > [ 0.125980] [<ffffffff818c2da3>] ? kernel_init+0x0/0x1ea > [ 0.125980] [<ffffffff81012f00>] ? child_rip+0x0/0x20 > [ 0.125980] [<ffffffff813fab0c>] ? rest_init+0x1c/0x80 > [ 0.125980] [<ffffffff818c3625>] start_kernel+0x3ea/0x4b0 > [ 0.125980] [<ffffffff818c2ac9>] x86_64_start_reservations+0x99/0xb9 > [ 0.125980] [<ffffffff818c2bee>] x86_64_start_kernel+0x105/0x120 > [ 0.125980] [<ffffffff818c2950>] ? early_idt_handler+0x0/0x71 > [ 0.125980] Code: 9a 81 48 c7 c7 20 b0 74 81 e8 2d 88 c6 ff 48 83 3d d5 > 81 59 00 00 74 3b 8b 35 d5 81 59 00 85 f6 7f 3e e8 34 8f ca ff fb 66 66 90 > <66> 66 90 45 31 e4 e8 15 e6 c8 ff 4c 89 e7 ff 15 ac 81 59 00 bf [ > 0.125980] RIP [<ffffffff8140d700>] panic+0xe7/0x176 > [ 0.125980] RSP <ffffffff815ef8e8> > [ 0.125980] ---[ end trace a7919e7f17c0a726 ]--- > [ 0.125980] Kernel panic - not syncing: Attempted to kill the idle task! > [ 0.125980] Pid: 0, comm: swapper Tainted: G D 2.6.31 #132 > [ 0.125980] Call Trace: > [ 0.125980] [<ffffffff8140d6c8>] panic+0xaf/0x176 > [ 0.125980] [<ffffffff8140d7fb>] ? printk+0x6c/0x71 > [ 0.125980] [<ffffffff814110e4>] ? _spin_unlock_irqrestore+0x34/0x70 > [ 0.125980] [<ffffffff81059b86>] do_exit+0x736/0x800 > [ 0.125980] [<ffffffff81016a03>] oops_end+0xa3/0xb0 > [ 0.125980] [<ffffffff81016c3b>] die+0x5b/0x90 > [ 0.125980] [<ffffffff81013cf8>] do_general_protection+0x158/0x160 > [ 0.125980] [<ffffffff81411575>] general_protection+0x25/0x30 > [ 0.125980] [<ffffffff8140d700>] ? panic+0xe7/0x176 > [ 0.125980] [<ffffffff8140d6fc>] ? panic+0xe3/0x176 > [ 0.125980] [<ffffffff8140d7fb>] ? printk+0x6c/0x71 > [ 0.125980] [<ffffffff81059b86>] do_exit+0x736/0x800 > [ 0.125980] [<ffffffff81016a03>] oops_end+0xa3/0xb0 > [ 0.125980] [<ffffffff81036bf0>] no_context+0xf0/0x260 > [ 0.125980] [<ffffffff81036eb5>] __bad_area_nosemaphore+0x155/0x1f0 > [ 0.125980] [<ffffffff810ce0c2>] ? get_page_from_freelist+0x212/0x650 > [ 0.125980] [<ffffffff81036f63>] bad_area_nosemaphore+0x13/0x20 > [ 0.125980] [<ffffffff810373a6>] do_page_fault+0x276/0x320 > [ 0.125980] [<ffffffff814115a5>] page_fault+0x25/0x30 > [ 0.125980] [<ffffffff812d5e85>] get_random_int+0xa5/0xf0 > [ 0.125980] [<ffffffff81053899>] copy_process+0x1a9/0x1390 > [ 0.125980] [<ffffffff81054b0a>] do_fork+0x8a/0x420 > [ 0.125980] [<ffffffff81012841>] ? restore_args+0x0/0x30 > [ 0.125980] [<ffffffff81012ea2>] kernel_thread+0x82/0xe0 > [ 0.125980] [<ffffffff818c2da3>] ? kernel_init+0x0/0x1ea > [ 0.125980] [<ffffffff81012f00>] ? child_rip+0x0/0x20 > [ 0.125980] [<ffffffff813fab0c>] ? rest_init+0x1c/0x80 > [ 0.125980] [<ffffffff818c3625>] start_kernel+0x3ea/0x4b0 > [ 0.125980] [<ffffffff818c2ac9>] x86_64_start_reservations+0x99/0xb9 > [ 0.125980] [<ffffffff818c2bee>] x86_64_start_kernel+0x105/0x120 > [ 0.125980] [<ffffffff818c2950>] ? early_idt_handler+0x0/0x71 > > --- > > Config follows -- -ck -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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