Simon Horman 6672f76a5a kdump/kexec: calculate note size at compile time ... Currently the size of the per-cpu region reserved to save crash notes is set by the per-architecture value MAX_NOTE_BYTES. Which in turn is currently set to 1024 on all supported architectures. While testing ia64 I recently discovered that this value is in fact too small. The particular setup I was using actually needs 1172 bytes. This lead to very tedious failure mode where the tail of one elf note would overwrite the head of another if they ended up being alocated sequentially by kmalloc, which was often the case. It seems to me that a far better approach is to caclculate the size that the area needs to be. This patch does just that. If a simpler stop-gap patch for ia64 to be squeezed into 2.6.21(.X) is needed then this should be as easy as making MAX_NOTE_BYTES larger in arch/asm-ia64/kexec.h. Perhaps 2048 would be a good choice. However, I think that the approach in this patch is a much more robust idea. Acked-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-05-08 11:15:07 -07:00
..
8253pit.h
a.out.h
acpi.h	ACPICA: Allow ACPI id to be u32 instead of u8.	2007-02-02 21:14:31 -05:00
agp.h	[AGPGART] Move [un]map_page_into_agp into asm/agp.h	2007-04-26 14:22:50 -04:00
alternative-asm.i	Remove all inclusions of <linux/config.h>	2006-10-04 03:38:54 -04:00
alternative.h	[PATCH] x86: PARAVIRT: Jeremy Fitzhardinge <jeremy@goop.org>	2007-05-02 19:27:16 +02:00
apic.h	[PATCH] x86-64: safe_apic_wait_icr_idle - x86_64	2007-05-02 19:27:17 +02:00
apicdef.h
atomic.h	Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6	2006-12-07 08:59:11 -08:00
auxvec.h
bitops.h	[PATCH] x86-64: Fix wrong gcc check in bitops.h	2007-02-13 13:26:25 +01:00
boot.h
bootsetup.h	[PATCH] Dynamic kernel command-line: x86_64	2007-02-12 09:48:39 -08:00
bug.h	[PATCH] Generic BUG for x86-64	2006-12-08 08:28:39 -08:00
bugs.h	[PATCH] x86-64: Clean up asm-x86_64/bugs.h	2007-05-02 19:27:12 +02:00
byteorder.h
cache.h	fix file specification in comments	2006-10-03 23:01:26 +02:00
cacheflush.h	[PATCH] Optimize D-cache alias handling on fork	2006-12-13 09:27:08 -08:00
calgary.h	[PATCH] Calgary: allow compiling Calgary in but not using it by default	2006-12-07 02:14:07 +01:00
calling.h
checksum.h	[NET]: X86_64 checksum annotations and cleanups.	2006-12-02 21:23:14 -08:00
compat.h
const.h	[PATCH] x86-64: Assembly safe page.h and pgtable.h	2007-05-02 19:27:06 +02:00
cpu.h
cpufeature.h	[PATCH] x86-64: x86-64 add Intel BTS cpufeature bit and detection (take 2)	2006-12-07 02:14:11 +01:00
cputime.h
current.h
debugreg.h
delay.h	[PATCH] x86: comment magic constants in delay.h	2006-12-07 02:14:07 +01:00
desc_defs.h	[PATCH] x86-64: Extract segment descriptor definitions for use outside	2006-12-07 02:14:04 +01:00
desc.h	[PATCH] x86-64: Introduce load_TLS to the "for" loop.	2007-05-02 19:27:09 +02:00
device.h	ACPI: Change ACPI to use dev_archdata instead of firmware_data	2006-12-01 14:52:01 -08:00
div64.h
dma-mapping.h	[PATCH] x86-64: dma_ops as const	2007-05-02 19:27:06 +02:00
dma.h
dmi.h
dwarf2.h
e820.h	[PATCH] x86-64: Fix fake numa for x86_64 machines with big IO hole	2007-02-13 13:26:22 +01:00
edac.h
elf.h	[PATCH] severing module.h->sched.h	2006-12-04 02:00:22 -05:00
emergency-restart.h
errno.h
fcntl.h
fixmap.h	[PATCH] x86-64: adjust inclusion of asm/vsyscall32.h	2007-05-02 19:27:04 +02:00
floppy.h	IRQ: Maintain regs pointer globally rather than passing to IRQ handlers	2006-10-05 15:10:12 +01:00
fpu32.h
futex.h	[PATCH] mm: pagefault_{disable,enable}()	2006-12-07 08:39:21 -08:00
genapic.h	[PATCH] x86-64: always use physical delivery mode on > 8 CPUs	2007-05-02 19:27:04 +02:00
hardirq.h	[PATCH] genirq: irq: generalize the check for HARDIRQ_BITS	2006-10-04 07:55:28 -07:00
hpet.h	[PATCH] time: x86_64: split x86_64/kernel/time.c up	2007-02-16 08:14:00 -08:00
hw_irq.h	[PATCH] x86_64 irq: Fix comments after changing IRQ0_VECTOR from 0x20 to 0x30	2007-03-29 08:16:23 -07:00
hypertransport.h	[PATCH] Initial generic hypertransport interrupt support	2006-10-04 07:55:29 -07:00
i387.h
ia32_unistd.h
ia32.h
ide.h
idle.h
intel_arch_perfmon.h
io_apic.h	[PATCH] io_apic.h needs apicdef.h	2007-03-05 07:57:50 -08:00
io.h	[PATCH] x86-64: Fix preprocessor condition	2007-02-13 13:26:23 +01:00
ioctl.h
ioctls.h	[PATCH] termios: Enable new style termios ioctls on x86-64	2006-12-08 08:28:57 -08:00
ipcbuf.h
ipi.h	[PATCH] x86-64: Use safe_apic_wait_icr_idle in __send_IPI_dest_field - x86_64	2007-05-02 19:27:18 +02:00
irq_regs.h	IRQ: Maintain regs pointer globally rather than passing to IRQ handlers	2006-10-05 15:10:12 +01:00
irq.h	[PATCH] genirq: x86_64 irq: make vector_irq per cpu	2006-10-04 07:55:29 -07:00
irqflags.h	[PATCH] x86-64: Use X86_EFLAGS_IF in x86-64/irqflags.h.	2007-05-02 19:27:11 +02:00
k8.h
Kbuild	[PATCH] x86: Clean up x86 control register and MSR macros (corrected)	2007-05-02 19:27:12 +02:00
kdebug.h	move die notifier handling to common code	2007-05-08 11:15:04 -07:00
kexec.h	kdump/kexec: calculate note size at compile time	2007-05-08 11:15:07 -07:00
kmap_types.h
kprobes.h
ldt.h
linkage.h
local.h
mach_apic.h	[PATCH] x86_64 irq: Allocate a vector across all cpus for genapic_flat.	2006-10-08 12:24:02 -07:00
mc146818rtc.h
mce.h	[PATCH] x86-64: Allow to run a program when a machine check event is detected	2007-02-13 13:26:23 +01:00
mman.h
mmsegment.h
mmu_context.h	[PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction	2007-05-02 19:27:14 +02:00
mmu.h
mmzone.h	[PATCH] x86-64: configurable fake numa node sizes	2007-05-02 19:27:09 +02:00
module.h
mpspec.h
msgbuf.h
msidef.h	[PATCH] genirq: x86_64 irq: Move msi message composition into io_apic.c	2006-10-04 07:55:28 -07:00
msr-index.h	[PATCH] x86: Clean up x86 control register and MSR macros (corrected)	2007-05-02 19:27:12 +02:00
msr.h	[PATCH] x86: Clean up x86 control register and MSR macros (corrected)	2007-05-02 19:27:12 +02:00
mtrr.h	[PATCH] x86: Save the MTRRs of the BSP before booting an AP	2007-05-02 19:27:17 +02:00
mutex.h	[PATCH] x86-64: Remove fastcall references in x86_64 code	2007-02-13 13:26:22 +01:00
namei.h
nmi.h	[PATCH] x86-64: Use the 32bit wd_ops for 64bit too.	2007-05-02 19:27:20 +02:00
node.h
numa.h
page.h	Revert "[PATCH] x86: __pa and __pa_symbol address space separation"	2007-05-07 08:44:24 -07:00
param.h
parport.h
pci-direct.h	[PATCH] x86: add write_pci_config_byte() to direct PCI access routines	2006-12-07 02:14:10 +01:00
pci.h
pda.h	[PATCH] x86-64: Fix race in exit_idle	2006-11-14 16:57:46 +01:00
percpu.h	[PATCH] x86-64: Account for module percpu space separately from kernel percpu	2007-05-02 19:27:11 +02:00
pgalloc.h	[PATCH] x86-64: use lru instead of page->index and page->private for pgd lists management.	2007-05-02 19:27:10 +02:00
pgtable.h	move die notifier handling to common code	2007-05-08 11:15:04 -07:00
poll.h
posix_types.h
prctl.h
processor-flags.h	[PATCH] x86: Clean up x86 control register and MSR macros (corrected)	2007-05-02 19:27:12 +02:00
processor.h	[PATCH] x86: Clean up x86 control register and MSR macros (corrected)	2007-05-02 19:27:12 +02:00
proto.h	[PATCH] x86-64: Move mtrr prototypes from proto.h to mtrr.h	2007-05-02 19:27:17 +02:00
ptrace-abi.h	[PATCH] Split i386 and x86_64 ptrace.h	2006-09-26 08:49:10 -07:00
ptrace.h	[PATCH] Add regs_return_value() helper	2006-10-02 07:57:16 -07:00
resource.h
rio.h	[PATCH] Calgary: check BBAR ioremap success when ioremapping	2006-12-07 02:14:06 +01:00
rtc.h
rwlock.h
scatterlist.h	PCI: scatterlist.h needs types.h	2007-05-02 19:02:34 -07:00
seccomp.h
sections.h
segment.h	[PATCH] x86-64: cleanup segments	2007-05-02 19:27:07 +02:00
semaphore.h	[PATCH] Use early clobber in semaphores	2006-09-30 01:47:55 +02:00
sembuf.h
serial.h
setup.h	[PATCH] x86_64: 2048-byte command line	2007-02-12 09:48:39 -08:00
shmbuf.h
shmparam.h
sigcontext32.h
sigcontext.h
siginfo.h
signal.h
smp.h	[PATCH] x86: consolidate smp_send_stop()	2007-05-02 19:27:05 +02:00
socket.h	[NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support	2007-04-25 22:24:21 -07:00
sockios.h	[NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec resolution	2007-04-25 22:24:04 -07:00
sparsemem.h
spinlock_types.h	[PATCH] Remove 'volatile' from spinlock_types	2006-12-06 14:39:53 -08:00
spinlock.h	[PATCH] x86-64: Don't keep interrupts disabled while spinning in spinlocks	2006-12-07 02:14:00 +01:00
stacktrace.h	[PATCH] x86: add sysctl for kstack_depth_to_print	2006-12-07 02:14:11 +01:00
stat.h
statfs.h
string.h
suspend.h	[PATCH] x86-64: wakeup.S rename registers to reflect right names	2007-05-02 19:27:07 +02:00
swiotlb.h	Revert "[IA64] swiotlb abstraction (e.g. for Xen)"	2007-03-06 13:31:45 -08:00
system.h	[PATCH] x86-64: Remove duplicated code for reading control registers	2007-05-02 19:27:06 +02:00
tce.h
termbits.h	tty: i386/x86_64 arbitary speed support	2007-05-08 11:15:03 -07:00
termios.h	[PATCH] consolidate line discipline number definitions	2007-02-11 10:51:26 -08:00
therm_throt.h
thread_info.h	[PATCH] PM: Fix SMP races in the freezer	2006-12-13 09:05:49 -08:00
timex.h	[PATCH] x86: Log reason why TSC was marked unstable	2007-05-02 19:27:08 +02:00
tlb.h
tlbflush.h	[PATCH] x86-64: Remove duplicated code for reading control registers	2007-05-02 19:27:06 +02:00
topology.h	[PATCH] sched: remove SMT nice	2007-03-05 07:57:51 -08:00
tsc.h	[PATCH] i386: make x86_64 tsc header require i386 rather than vice-versa	2007-03-06 09:30:24 -08:00
types.h	[PATCH] Centralise definitions of sector_t and blkcnt_t	2006-12-04 19:41:15 -08:00
uaccess.h	[PATCH] kill bogus casts in amd64 uaccess.h	2007-03-14 15:27:50 -07:00
ucontext.h
unaligned.h
unistd.h	[PATCH] x86-64: Auto compute __NR_syscall_max at compile time	2007-05-02 19:27:18 +02:00
unwind.h	Remove stack unwinder for now	2006-12-15 08:47:51 -08:00
user32.h
user.h
vga.h
vsyscall32.h
vsyscall.h	[PATCH] time: x86_64: re-enable vsyscall support for x86_64	2007-02-16 08:14:00 -08:00
xor.h