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
..
a.out.h
appldata.h
atomic.h	[S390] add atomic64_xchg to s390	2007-02-21 10:55:59 +01:00
auxvec.h
bitops.h
bug.h	[S390] Use generic bug.	2007-04-27 16:01:42 +02:00
bugs.h	[S390] check_bugs() should be inline.	2007-03-05 23:35:50 +01:00
byteorder.h
cache.h
cacheflush.h	[PATCH] Optimize D-cache alias handling on fork	2006-12-13 09:27:08 -08:00
ccwdev.h	[S390] cio: Deprecate read_dev_chars() and read_conf_data{,_lpm}().	2007-05-04 18:48:25 +02:00
ccwgroup.h	[S390] cio: ccwgroup register vs. unregister.	2007-04-27 16:01:41 +02:00
checksum.h	[S390] Fix TCP/UDP pseudo header checksum computation.	2007-03-26 20:43:46 +02:00
chpid.h	[S390] cio: Channel-path configure function.	2007-04-27 16:01:39 +02:00
cio.h	[S390] cio: Channel-path configure function.	2007-04-27 16:01:39 +02:00
cmb.h
compat.h	[S390] noexec protection	2007-02-05 21:18:17 +01:00
cpcmd.h	[S390] cpcmd <-> __cpcmd calling issues	2006-12-04 15:40:30 +01:00
cputime.h
current.h
dasd.h	[S390] New DASD feature for ERP related logging	2006-12-08 15:54:15 +01:00
debug.h
delay.h
device.h	Driver core: add dev_archdata to struct device	2006-12-01 14:52:01 -08:00
div64.h
dma-mapping.h	Introduce CONFIG_HAS_DMA	2007-05-07 12:12:51 -07:00
dma.h
ebcdic.h
elf.h	[S390] add hardware capability support (ELF_HWCAP).	2007-05-04 18:48:35 +02:00
emergency-restart.h
errno.h
etr.h	[S390] ETR support.	2007-02-05 21:18:19 +01:00
extmem.h
fcntl.h
futex.h	[S390] don't call handle_mm_fault() if in an atomic context.	2007-01-09 10:18:50 +01:00
hardirq.h	[S390] ETR support.	2007-02-05 21:18:19 +01:00
idals.h
io.h	[S390] remove __io_virt and mmiowb.	2007-02-12 15:49:57 +01:00
ioctl.h
ioctls.h
ipc.h
ipcbuf.h
ipl.h	[S390] zfcpdump support.	2007-04-27 16:01:44 +02:00
irq_regs.h	[S390] irq change build fixes.	2006-10-06 16:38:35 +02:00
irq.h
irqflags.h
Kbuild
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	[S390] get rid of kprobes notifier call chain.	2007-05-04 18:48:24 +02:00
linkage.h
local.h	[S390] local_t cleanup : use asm-generic/local.h.	2007-02-21 10:55:55 +01:00
lowcore.h	[S390] add hardware capability support (ELF_HWCAP).	2007-05-04 18:48:35 +02:00
mathemu.h
mman.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
module.h
monwriter.h
msgbuf.h
mutex.h
namei.h
page.h	[S390] Virtual memmap for s390.	2006-12-08 15:56:07 +01:00
param.h
pci.h
percpu.h	[PATCH] Fix typo in "syntax error if percpu macros are incorrectly used" patch	2006-10-06 08:53:41 -07:00
pgalloc.h	[S390] noexec protection	2007-02-05 21:18:17 +01:00
pgtable.h	[S390] split page_test_and_clear_dirty.	2007-04-27 16:01:46 +02:00
poll.h
posix_types.h	[PATCH] FD_ZERO build fix	2007-01-11 18:18:22 -08:00
processor.h	[S390] Processor degradation notification.	2007-04-27 16:01:46 +02:00
ptrace.h	[S390] noexec protection	2007-02-05 21:18:17 +01:00
qdio.h	[S390] Hipersocket multicast queue: make sure outbound handler is called	2006-12-15 17:18:14 +01:00
qeth.h
reset.h	[S390] Convert memory detection into C code.	2007-02-05 21:18:37 +01:00
resource.h
rwsem.h
s390_ext.h	[S390] irq change build fixes.	2006-10-06 16:38:35 +02:00
s390_rdev.h
scatterlist.h
sclp.h	[S390] zfcpdump support.	2007-04-27 16:01:44 +02:00
sections.h	[S390] nss: Free unused memory in kernel image.	2007-02-21 10:55:37 +01:00
segment.h
semaphore.h
sembuf.h
setup.h	[S390] zfcpdump support.	2007-04-27 16:01:44 +02:00
sfp-machine.h
sfp-util.h	[S390] Calibrate delay and bogomips.	2007-02-05 21:18:31 +01:00
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h
sigp.h
smp.h	[S390] Clean up smp code in preparation for some larger changes.	2007-04-27 16:01:47 +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
spinlock_types.h
spinlock.h	[S390] incorrect placement of include.	2006-10-04 20:02:12 +02:00
stat.h
statfs.h
string.h
suspend.h
system.h	[S390] noexec protection	2007-02-05 21:18:17 +01:00
tape390.h	[S390] Add crypto support for 3592 tape devices	2007-02-05 21:18:26 +01:00
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
timer.h	[S390] Get rid of a lot of sparse warnings.	2007-02-05 21:16:47 +01:00
timex.h	[S390] Support for s390 Pseudo Random Number Generator	2007-02-05 21:18:22 +01:00
tlb.h
tlbflush.h	[S390] noexec protection	2007-02-05 21:18:17 +01:00
todclk.h
topology.h
types.h	[PATCH] Centralise definitions of sector_t and blkcnt_t	2006-12-04 19:41:15 -08:00
uaccess.h	[S390] noexec protection	2007-02-05 21:18:17 +01:00
ucontext.h
unaligned.h
unistd.h	[S390] Wire up sys_utimes.	2007-03-19 13:19:07 +01:00
user.h
vtoc.h
xor.h
zcrypt.h	[S390] update interface notes in zcrypt.h	2006-12-04 15:40:00 +01:00