Ken'ichi Ohmichi e7706fc691 x86, kdump: fix invalid access on i386 sparsemem ...

Impact: fix kdump crash on 32-bit sparsemem kernels

Since linux-2.6.27, kdump has failed on i386 sparsemem kernel.
1st-kernel gets a panic just before switching to 2nd-kernel.

The cause is that a kernel accesses invalid mem_section by
page_to_pfn(image->swap_page) at machine_kexec().
image->swap_page is allocated if kexec for hibernation, but
it is not allocated if kdump. So if kdump, a kernel should
not access the mem_section corresponding to image->swap_page.

The attached patch fixes this invalid access.

Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>
Cc: kexec-ml <kexec@lists.infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2008-10-28 16:48:24 +01:00

..

acpi

Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2008-10-23 12:38:39 -07:00

cpu

Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2008-10-23 12:38:39 -07:00

.gitignore

arch/x86/kernel/.gitignore: Added vmlinux.lds to .gitignore file because it shouldn't be tracked.

2008-07-10 10:13:51 -07:00

alternative.c

x86: improve UP kernel when CPU-hotplug and SMP is enabled

2008-10-13 10:33:46 +02:00

amd_iommu_init.c

amd_iommu: fix nasty bug that caused ILLEGAL_DEVICE_TABLE_ENTRY errors

2008-10-18 14:29:30 +01:00

amd_iommu.c

x86, AMD IOMMU: convert driver to generic iommu_num_pages function

2008-10-16 11:21:33 -07:00

aperture_64.c

x86, debug printouts: IOMMU setup failures should not be KERN_ERR

2008-09-30 10:25:28 +02:00

apic.c

x86: apic - unify APIC_DIVISOR

2008-10-16 16:53:14 +02:00

apm_32.c

Merge branches 'x86/alternatives', 'x86/cleanups', 'x86/commandline', 'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/doc', 'x86/exports', 'x86/fpu', 'x86/gart', 'x86/idle', 'x86/mm', 'x86/mtrr', 'x86/nmi-watchdog', 'x86/oprofile', 'x86/paravirt', 'x86/reboot', 'x86/sparse-fixes', 'x86/tsc', 'x86/urgent' and 'x86/vmalloc' into x86-v28-for-linus-phase1

2008-10-06 18:17:07 +02:00

asm-offsets_32.c

x86/paravirt: split sysret and sysexit

2008-07-08 13:13:15 +02:00

asm-offsets_64.c

x86: Fix ASM_X86__ header guards

2008-10-22 22:55:23 -07:00

asm-offsets.c

…

audit_64.c

…

bios_uv.c

x86: Add UV partition call v4

2008-10-16 16:53:13 +02:00

bootflag.c

…

cpuid.c

device create: misc: convert device_create_drvdata to device_create

2008-10-16 09:24:43 -07:00

crash_dump_32.c

kdump: make elfcorehdr_addr independent of CONFIG_PROC_VMCORE

2008-10-20 08:52:39 -07:00

crash_dump_64.c

kdump: make elfcorehdr_addr independent of CONFIG_PROC_VMCORE

2008-10-20 08:52:39 -07:00

crash.c

x86: allow machine_crash_shutdown to be replaced

2008-04-27 12:00:29 +03:00

doublefault_32.c

x86: fix virt_addr_valid() with CONFIG_DEBUG_VIRTUAL=y, v2

2008-10-13 10:33:15 +02:00

ds.c

x86: ds.c ptrace.c integer as NULL pointer sparse fixes

2008-09-24 09:57:47 +02:00

dumpstack_32.c

x86, kexec: fix hang on i386 when panic occurs while console_sem is held

2008-10-22 13:59:44 +02:00

dumpstack_64.c

sysfs: crash debugging

2008-10-16 09:24:41 -07:00

e820.c

Merge branches 'core/softlockup', 'core/softirq', 'core/resources', 'core/printk' and 'core/misc' into core-v28-for-linus

2008-10-15 12:48:44 +02:00

early_printk.c

warnings: fix arch/x86/kernel/early_printk.c

2008-10-12 15:19:36 +02:00

early-quirks.c

x86: SB600: skip IRQ0 override if it is not routed to INT2 of IOAPIC

2008-10-22 12:00:10 +02:00

efi_32.c

x86: fix i486 suspend to disk CR4 oops

2008-08-18 08:50:19 +02:00

efi_64.c

x86: add flags parameter to reserve_bootmem_generic()

2008-07-08 11:49:49 +02:00

efi_stub_32.S

…

efi_stub_64.S

…

efi.c

x86: Add UV EFI table entry v4

2008-10-16 16:53:13 +02:00

entry_32.S

MCE: Don't run 32bit machine checks with interrupts on

2008-10-22 13:19:01 +02:00

entry_64.S

ftrace: x86 mcount stub

2008-10-14 10:34:58 +02:00

es7000_32.c

x86: check dsdt before find oem table for es7000, v2

2008-10-13 10:21:07 +02:00

ftrace.c

ftrace: make ftrace_test_p6nop disassembler-friendly

2008-10-14 10:39:29 +02:00

genapic_64.c

GRU Driver: export is_uv_system(), zap_page_range() & follow_page()

2008-07-30 09:41:48 -07:00

genapic_flat_64.c

x86: fix section mismatch warning - apic_physflat

2008-10-22 17:36:27 +02:00

genx2apic_cluster.c

x86: fix section mismatch warning - apic_x2apic_cluster

2008-10-22 17:36:29 +02:00

genx2apic_phys.c

x86: fix section mismatch warning - apic_x2apic_phys

2008-10-22 17:36:30 +02:00

genx2apic_uv_x.c

x86/uv: memory allocation at initialization

2008-10-27 14:17:16 +01:00

geode_32.c

x86, geode: add a VSA2 ID for General Software

2008-06-19 14:19:03 +02:00

head32.c

x86: extract common part of head32.c and head64.c into head.c

2008-06-05 15:10:02 +02:00

head64.c

x86_64: be less annoying on boot, v2

2008-09-29 10:04:53 +02:00

head_32.S

x86, cpa: rename PTE attribute macros for kernel direct mapping in early boot

2008-10-10 19:29:11 +02:00

head_64.S

x86, cpa: rename PTE attribute macros for kernel direct mapping in early boot

2008-10-10 19:29:11 +02:00

head.c

x86: print out EBDA/lowmem address

2008-10-13 10:21:10 +02:00

hpet.c

hpet: clean up warning

2008-10-16 16:53:12 +02:00

i386_ksyms_32.c

ftrace: store mcount address in rec->ip

2008-06-23 22:10:56 +02:00

i387.c

x86: xsave: set FP, SSE bits in the xsave header in the user sigcontext

2008-10-07 14:36:08 -07:00

i8237.c

…

i8253.c

x86: cleanup div_sc() usage

2008-04-26 17:35:47 +02:00

i8259.c

x64, x2apic/intr-remap: 8259 specific mask/unmask routines

2008-07-12 08:44:55 +02:00

init_task.c

[PATCH] take init_files to fs/file.c

2008-05-16 17:22:20 -04:00

io_apic.c

io_apic: make irq_mis_count available on 64-bit too

2008-10-16 16:59:20 +02:00

io_delay.c

x86: add io delay quirk for Presario F700

2008-09-03 16:42:51 -07:00

ioport.c

x86: Introducing asm/syscalls.h

2008-07-22 14:35:57 +02:00

ipi.c

X86_SMP: ipi.c declare functions before they get used

2008-07-25 11:57:46 +05:30

irq_32.c

x86: move ack_bad_irq() to irq.c

2008-10-16 16:53:30 +02:00

irq_64.c

x86: move ack_bad_irq() to irq.c

2008-10-16 16:53:30 +02:00

irq.c

genirq: fix off by one and coding style

2008-10-21 15:54:40 +02:00

irqinit_32.c

genirq: remove artifacts from sparseirq removal

2008-10-16 16:53:15 +02:00

irqinit_64.c

genirq: remove irq_to_desc_alloc

2008-10-16 16:53:15 +02:00

k8.c

x86, gart: add detection of AMD family 0x11 northbridges

2008-09-05 19:11:44 +02:00

kdebugfs.c

arch/x86/kernel/kdebugfs.c: introduce missing kfree

2008-09-10 14:03:49 +02:00

kgdb.c

kgdb, x86: Avoid invoking kgdb_nmicallback twice per NMI

2008-10-06 13:50:59 -05:00

kprobes.c

kprobes: improve kretprobe scalability with hashed locking

2008-07-25 10:53:30 -07:00

kvm.c

x86, paravirt_ops: use unsigned long instead of u32 for alloc_p*() pfn args

2008-08-22 05:34:44 +02:00

kvmclock.c

x86: KVM guest: use paravirt function to calculate cpu khz

2008-10-15 10:15:17 +02:00

ldt.c

Merge branch 'linus' into x86/xen

2008-10-12 12:37:32 +02:00

machine_kexec_32.c

x86, kdump: fix invalid access on i386 sparsemem

2008-10-28 16:48:24 +01:00

machine_kexec_64.c

kexec jump

2008-07-26 12:00:04 -07:00

Makefile

x86: unify show_interrupts() and proc helpers

2008-10-16 16:53:29 +02:00

mca_32.c

…

mfgpt_32.c

x86, geode-mfgpt: check IRQ before using MFGPT as clocksource

2008-08-15 17:12:32 +02:00

microcode_amd.c

x86: AMD microcode patch loader author update

2008-10-28 16:41:28 +01:00

microcode_core.c

x86: microcode patch loader author update

2008-10-28 16:41:16 +01:00

microcode_intel.c

x86: moved microcode.c to microcode_intel.c

2008-09-23 12:21:42 +02:00

mmconf-fam10h_64.c

x86: mmconf: fix section mismatch warning

2008-08-18 07:49:06 +02:00

module_32.c

…

module_64.c

PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures

2008-07-24 10:47:21 -07:00

mpparse.c

Merge branch 'x86/apic' into x86-v28-for-linus-phase4-B

2008-10-11 20:17:36 +02:00

msr.c

device create: misc: convert device_create_drvdata to device_create

2008-10-16 09:24:43 -07:00

nmi.c

x86, NMI watchdog: setup before enabling NMI watchdog

2008-09-22 19:48:19 +02:00

numaq_32.c

Merge branch 'x86/apic' into x86-v28-for-linus-phase4-B

2008-10-11 20:17:36 +02:00

olpc.c

x86, olpc: fix endian bug in openfirmware workaround

2008-09-24 10:29:04 +02:00

paravirt_patch_32.c

x86: coding style fixes to arch/x86/kernel/paravirt_patch_32.c

2008-08-15 16:53:25 +02:00

paravirt_patch_64.c

x86/paravirt: add sysret/sysexit pvops for returning to 32-bit compatibility userspace

2008-07-08 13:15:52 +02:00

paravirt-spinlocks.c

x86: export pv_lock_ops non-GPL

2008-08-22 15:43:17 +02:00

paravirt.c

Merge branch 'linus' into x86/xen

2008-10-12 12:37:32 +02:00

pci-calgary_64.c

x86: convert Calgary IOMMU driver to generic iommu_num_pages function

2008-10-16 11:21:33 -07:00

pci-dma.c

intel-iommu: IA64 support

2008-10-18 14:29:15 +01:00

pci-gart_64.c

x86: convert GART driver to generic iommu_num_pages function

2008-10-16 11:21:33 -07:00

pci-nommu.c

x86: export pci-nommu's alloc_coherent

2008-09-25 11:02:25 +02:00

pci-swiotlb_64.c

dma-mapping: add the device argument to dma_mapping_error()

2008-07-26 12:00:03 -07:00

pcspeaker.c

x86: use platform_device_register_simple()

2008-09-22 12:58:36 +02:00

pmtimer_64.c

…

probe_roms_32.c

x86: seperate probe_roms into another file

2008-07-08 12:50:05 +02:00

process_32.c

x86: __show_registers() and __show_regs() API unification

2008-10-13 10:33:04 +02:00

process_64.c

Merge branch 'linus' into test

2008-10-23 00:11:07 -04:00

process.c

Merge branch 'x86/unify-cpu-detect' into x86-v28-for-linus-phase4-D

2008-10-11 20:23:20 +02:00

ptrace.c

Merge branches 'x86/xen', 'x86/build', 'x86/microcode', 'x86/mm-debug-v2', 'x86/memory-corruption-check', 'x86/early-printk', 'x86/xsave', 'x86/ptrace-v2', 'x86/quirks', 'x86/setup', 'x86/spinlocks' and 'x86/signal' into x86/core-v2

2008-10-12 15:50:02 +02:00

pvclock.c

x86: pvclock: fix shadowed variable warning

2008-10-15 14:25:14 +02:00

quirks.c

x86: remove irqbalance in kernel for 32 bit

2008-10-16 16:52:52 +02:00

reboot_fixups_32.c

x86: constify data in reboot.c

2008-05-25 08:58:30 +02:00

reboot.c

x86: default to reboot via ACPI

2008-08-25 12:31:32 +02:00

relocate_kernel_32.S

kexec jump: check code size in control page

2008-08-15 08:35:42 -07:00

relocate_kernel_64.S

…

rtc.c

rtc: use bcd2bin/bin2bcd

2008-10-20 08:52:41 -07:00

scx200_32.c

…

setup_percpu.c

x86: remove redundant KERN_DEBUG on pr_debug

2008-10-22 16:56:22 +02:00

setup.c

Merge branch 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2008-10-20 13:23:01 -07:00

sigframe.h

Merge branch 'x86/unify-cpu-detect' into x86-v28-for-linus-phase4-D

2008-10-11 20:23:20 +02:00

signal_32.c

Merge branch 'x86/unify-cpu-detect' into x86-v28-for-linus-phase4-D

2008-10-11 20:23:20 +02:00

signal_64.c

Merge branch 'x86/unify-cpu-detect' into x86-v28-for-linus-phase4-D

2008-10-11 20:23:20 +02:00

smp.c

x86: add cpu hotplug hooks into smp_ops

2008-08-25 10:59:18 +02:00

smpboot.c

x86: do_boot_cpu - check if we have ESR register

2008-10-22 16:56:16 +02:00

smpcommon.c

x86: change init_gdt to update the gdt via write_gdt, rather than a direct write.

2008-08-15 19:16:05 +02:00

stacktrace.c

stacktrace: fix modular build, export print_stack_trace and save_stack_trace

2008-06-30 09:20:55 +02:00

step.c

x86 ptrace: user-sets-TF nits

2008-07-16 12:15:17 -07:00

summit_32.c

x86: mach_summit to summit

2008-07-26 16:31:35 +02:00

sys_i386_32.c

x86: Introducing asm/syscalls.h

2008-07-22 14:35:57 +02:00

sys_x86_64.c

Merge branches 'x86/alternatives', 'x86/cleanups', 'x86/commandline', 'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/doc', 'x86/exports', 'x86/fpu', 'x86/gart', 'x86/idle', 'x86/mm', 'x86/mtrr', 'x86/nmi-watchdog', 'x86/oprofile', 'x86/paravirt', 'x86/reboot', 'x86/sparse-fixes', 'x86/tsc', 'x86/urgent' and 'x86/vmalloc' into x86-v28-for-linus-phase1

2008-10-06 18:17:07 +02:00

syscall_64.c

x86: Fix ASM_X86__ header guards

2008-10-22 22:55:23 -07:00

syscall_table_32.S

flag parameters add-on: remove epoll_create size param

2008-07-24 10:47:29 -07:00

tce_64.c

…

test_nx.c

…

test_rodata.c

…

time_32.c

x86: wrap MCA_bus test around an ifdef

2008-10-13 10:21:47 +02:00

time_64.c

x86: move vgetcpu mode probing to cpu detection

2008-10-13 10:21:49 +02:00

tlb_32.c

x86: build fix for !CONFIG_SMP

2008-09-05 17:44:08 +02:00

tlb_64.c

Merge branch 'generic-ipi' into generic-ipi-for-linus

2008-07-15 21:55:59 +02:00

tlb_uv.c

x86/tlb_uv: remove strange mc146818rtc include

2008-10-22 16:56:23 +02:00

tls.c

x86: Introducing asm/syscalls.h

2008-07-22 14:35:57 +02:00

tls.h

…

topology.c

…

trampoline_32.S

x86: trampoline_32.S - switch to .cpuinit.data

2008-04-26 17:35:47 +02:00

trampoline_64.S

…

trampoline.c

x86: extend e820 ealy_res support 32bit

2008-05-25 10:55:11 +02:00

traps.c

MCE: Don't run 32bit machine checks with interrupts on

2008-10-22 13:19:01 +02:00

tsc_sync.c

x86: use WARN() in arch/x86/kernel

2008-08-21 10:01:52 +02:00

tsc.c

Merge branches 'x86/alternatives', 'x86/cleanups', 'x86/commandline', 'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/doc', 'x86/exports', 'x86/fpu', 'x86/gart', 'x86/idle', 'x86/mm', 'x86/mtrr', 'x86/nmi-watchdog', 'x86/oprofile', 'x86/paravirt', 'x86/reboot', 'x86/sparse-fixes', 'x86/tsc', 'x86/urgent' and 'x86/vmalloc' into x86-v28-for-linus-phase1

2008-10-06 18:17:07 +02:00

uv_irq.c

x86, UV: add uv_setup_irq() and uv_teardown_irq() functions, v3, fix

2008-10-16 16:53:13 +02:00

uv_sysfs.c

x86: Add sysfs entries for UV v4

2008-10-16 16:53:13 +02:00

verify_cpu_64.S

…

visws_quirks.c

genirq: revert dynarray

2008-10-16 16:53:15 +02:00

vm86_32.c

x86: Introducing asm/syscalls.h

2008-07-22 14:35:57 +02:00

vmi_32.c

Merge branch 'x86/apic' into x86-v28-for-linus-phase4-B

2008-10-11 20:17:36 +02:00

vmiclock_32.c

x86: VMI, initialize IRQ vector

2008-10-16 16:52:59 +02:00

vmlinux_32.lds.S

genirq: revert dynarray

2008-10-16 16:53:15 +02:00

vmlinux_64.lds.S

genirq: remove artifacts from sparseirq removal

2008-10-16 16:53:15 +02:00

vmlinux.lds.S

…

vsmp_64.c

x86: fix 27-rc crash on vsmp due to paravirt during module load

2008-09-23 10:31:26 +02:00

vsyscall_64.c

Merge branch 'generic-ipi' into generic-ipi-for-linus

2008-07-15 21:55:59 +02:00

x8664_ksyms_64.c

Merge branch 'auto-ftrace-next' into tracing/for-linus

2008-07-14 16:11:52 +02:00

xsave.c

x86: make variables static

2008-10-22 07:31:28 +02:00