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linux/include/asm-ia64
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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
..
sn [IA64] SGI Altix : fix pcibr_dmamap_ate32() bug 2007-04-06 15:38:12 -07:00
a.out.h
acpi-ext.h [IA64] update HP CSR space discovery via ACPI 2006-04-06 14:42:38 -07:00
acpi.h ACPICA: Allow ACPI id to be u32 instead of u8. 2007-02-02 21:14:31 -05:00
agp.h
asmmacro.h [IA64] remove per-cpu ia64_phys_stacked_size_p8 2007-02-06 15:04:18 -08:00
atomic.h [PATCH] atomic: add_unless cmpxchg optimise 2006-03-23 07:38:17 -08:00
auxvec.h
bitops.h [IA64] remove asm-ia64/bitops.h self-inclusion 2006-05-05 11:37:15 -07:00
break.h [IA64] enable trap code on slot 1 2006-12-12 12:00:55 -08:00
bug.h
bugs.h
byteorder.h
cache.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
cacheflush.h [PATCH] Optimize D-cache alias handling on fork 2006-12-13 09:27:08 -08:00
checksum.h [PATCH] fix prototype of csum_ipv6_magic() (ia64) 2007-01-23 11:09:49 -08:00
compat.h [PATCH] ia64: add ptr_to_compat() 2006-03-27 08:44:48 -08:00
cpu.h
cputime.h
current.h
cyclone.h
delay.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
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] ia64: fix noncoherent DMA API so devres builds 2007-02-14 08:09:51 -08:00
dma.h [IA64] swiotlb bug fixes 2007-02-05 18:46:40 -08:00
dmi.h [PATCH] ia64: use i386 dmi_scan.c 2006-03-26 08:56:54 -08:00
elf.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
emergency-restart.h
errno.h
esi.h [IA64] remove bogus prototype ia64_esi_init() 2007-02-05 14:14:29 -08:00
fcntl.h
fpswa.h
fpu.h
futex.h [PATCH] mm: pagefault_{disable,enable}() 2006-12-07 08:39:21 -08:00
gcc_intrin.h
hardirq.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
hw_irq.h [PATCH] genirq: add ->retrigger() irq op to consolidate hw_irq_resend() 2006-06-29 10:26:23 -07:00
ia32.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ia64regs.h
ide.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
intel_intrin.h
intrinsics.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
io.h [IA64] make ioremap avoid unsupported attributes 2007-03-30 09:37:41 -07:00
ioctl.h
ioctls.h
iosapic.h
ipcbuf.h
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 ia64 cleanup 2006-07-03 15:26:58 -07:00
Kbuild [PATCH] cleanup asm/setup.h userspace visibility 2006-12-07 08:39:46 -08:00
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 Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
kprobes.h [IA64] enable trap code on slot 1 2006-12-12 12:00:55 -08:00
kregs.h [IA64] relax per-cpu TLB requirement to DTC 2007-02-06 15:04:48 -08:00
libata-portmap.h ATA convert GSI to irq on ia64 2007-02-15 18:04:53 -05:00
linkage.h [PATCH] abstract type/size specification for assembly 2006-03-24 07:33:25 -08:00
local.h
machvec_dig.h [IA64] cleanup dig_irq_init 2006-03-24 13:12:46 -08:00
machvec_hpsim.h
machvec_hpzx1_swiotlb.h
machvec_hpzx1.h
machvec_init.h
machvec_sn2.h [IA64] IA64 Kexec/kdump 2006-12-07 09:51:35 -08:00
machvec.h [PATCH] ia64: platform_kernel_launch_event is noop on generic kernel 2007-03-18 11:35:07 -07:00
mc146818rtc.h
mca_asm.h [IA64] Make gp value point to Region 5 in mca handler 2006-09-26 14:13:03 -07:00
mca.h [IA64] kexec: declare ia64_mca_pal_base in mca.h rather than kexec.h 2007-03-08 10:18:24 -08:00
meminit.h [IA64] min_low_pfn and max_low_pfn calculation fix 2007-03-20 13:41:57 -07:00
mman.h [PATCH] IA64,sparc: local DoS with corrupted ELFs 2006-09-08 08:40:46 -07:00
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
module.h [PATCH] Move compiler check for modules to ia64 only 2006-09-26 10:52:37 +02:00
msgbuf.h
mutex.h [IA64] fix bug in ia64 __mutex_fastpath_trylock 2006-04-07 22:39:49 -07:00
namei.h
nodedata.h [PATCH] pgdat allocation and update for ia64 of memory hotplug: update pgdat address array 2006-06-27 17:32:37 -07:00
numa.h [PATCH] fix "cpu to node relationship fixup: map cpu to node" 2006-09-27 08:26:08 -07:00
page.h [IA64] Fix DISCONTIGMEM without VIRTUAL_MEM_MAP 2006-12-07 11:24:03 -08:00
pal.h Pull error-inject into release branch 2007-04-30 13:55:43 -07:00
param.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
parport.h
patch.h [IA64] remove per-cpu ia64_phys_stacked_size_p8 2007-02-06 15:04:18 -08:00
pci.h [IA64] pci_get_legacy_ide_irq should return irq (not GSI) 2007-03-08 10:04:44 -08:00
percpu.h [PATCH] lockdep: add per_cpu_offset() 2006-07-03 15:27:00 -07:00
perfmon_default_smpl.h
perfmon.h
pgalloc.h [IA64] virt_to_page() can be called with NULL arg 2007-02-05 16:47:02 -08:00
pgtable.h [PATCH] Standardize pxx_page macros 2006-09-26 08:48:51 -07:00
poll.h [PATCH] POLLRDHUP/EPOLLRDHUP handling for half-closed devices notifications 2006-03-25 08:22:56 -08:00
posix_types.h [PATCH] FD_ZERO build fix 2007-01-11 18:18:22 -08:00
processor.h Pull percpu-dtc into release branch 2007-04-30 13:56:00 -07:00
ptrace_offsets.h
ptrace.h [PATCH] Add regs_return_value() helper 2006-10-02 07:57:16 -07:00
resource.h [IA64] Remove stack hard limit on ia64 2007-03-06 14:48:19 -08:00
rse.h
rwsem.h [PATCH] lockdep: remove RWSEM_DEBUG remnants 2006-07-03 15:27:01 -07:00
sal.h [IA64] whitespace fixes for include/asm-ia64/sal.h 2007-03-08 09:58:13 -08:00
scatterlist.h PCI: scatterlist.h needs types.h 2007-05-02 19:02:34 -07:00
sections.h [IA64] remove per-cpu ia64_phys_stacked_size_p8 2007-02-06 15:04:18 -08:00
segment.h
semaphore.h
sembuf.h
serial.h
setup.h [PATCH] ia64: 2048-byte command line 2007-02-12 09:48:39 -08:00
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h [PATCH] irq-flags: IA64: Use the new IRQF_ constants 2006-07-02 13:58:47 -07:00
smp.h Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2006-09-27 10:53:30 -07:00
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
spinlock.h [PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locks 2006-10-01 00:39:21 -07:00
stat.h
statfs.h
string.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
suspend.h
system.h [IA64] sparse cleanups 2006-08-02 16:03:44 -07:00
termbits.h [PATCH] tty: preparatory structures for termios revamp 2006-12-08 08:28:56 -08:00
termios.h [PATCH] consolidate line discipline number definitions 2007-02-11 10:51:26 -08:00
thread_info.h [IA64] enable singlestep on system call 2007-02-05 13:49:29 -08:00
timex.h
tlb.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
tlbflush.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
topology.h [PATCH] sched: remove SMT nice 2007-03-05 07:57:51 -08:00
types.h
uaccess.h [IA64] don't double >> PAGE_SHIFT pointer for /dev/kmem access 2006-10-26 14:57:06 -07:00
ucontext.h
unaligned.h
uncached.h
unistd.h [IA64] Hook up getcpu system call for IA64 2007-02-05 16:56:36 -08:00
unwind.h [IA64] Remove sparse warning from unwind code 2007-03-08 10:28:48 -08:00
user.h
ustack.h [PATCH] Fix 'make headers_check' on ia64 2006-09-16 12:54:32 -07:00
vga.h [PATCH] vgacon: make VGA_MAP_MEM take size, remove extra use 2006-06-22 15:05:58 -07:00
xor.h