Andi Kleen ac71d12c99 [PATCH] x86_64: Avoid EBDA area in early boot allocator ... Based on analysis&patch from Robert Hentosch Observed on a Dell PE6850 with 16GB The problem occurs very early on, when the kernel allocates space for the temporary memory map called bootmap. The bootmap overlaps the EBDA region. EBDA region is not historically reserved in the e820 mapping. When the bootmap is freed it marks the EBDA region as usable. If you notice in setup.c there is already code to work around the EBDA in reserve_ebda_region(), this check however occurs after the bootmap is allocated and doesn't prevent the bootmap from using this range. AK: I redid the original patch. Thanks also to Jan Beulich for spotting some mistakes. Cc: Robert_Hentosch@dell.com Cc: jbeulich@novell.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-05-08 09:34:56 -07:00
..
8253pit.h	…
a.out.h	…
acpi.h	Revert "[PATCH] x86_64: Only do the clustered systems have unsynchronized TSC assumption on IBM systems"	2006-02-27 20:41:56 -08:00
agp.h	…
apic.h	[PATCH] x86_64: Allow to run main time keeping from the local APIC interrupt	2006-02-04 16:43:13 -08:00
apicdef.h	[PATCH] x86_64: timer interrupt lockup due to pending interrupt	2006-03-25 09:10:57 -08:00
atomic.h	[PATCH] atomic: add_unless cmpxchg optimise	2006-03-23 07:38:17 -08:00
auxvec.h	…
bitops.h	[PATCH] bitops: x86_64: use generic bitops	2006-03-26 08:57:14 -08:00
boot.h	…
bootsetup.h	…
bug.h	…
bugs.h	…
byteorder.h	…
cache.h	[PATCH] x86_64: bring back __read_mostly support to linux-2.6.17-rc2	2006-04-20 07:58:11 -07:00
cacheflush.h	…
calling.h	…
checksum.h	…
compat.h	…
cpu.h	…
cpufeature.h	[PATCH] i386/x86-64: Fix x87 information leak between processes	2006-04-20 07:58:11 -07:00
cputime.h	…
current.h	…
debugreg.h	…
delay.h	…
desc.h	…
div64.h	…
dma-mapping.h	…
dma.h	…
dmi.h	[PATCH] x86_64: Implement early DMI scanning	2006-03-25 09:10:55 -08:00
dwarf2.h	…
e820.h	[PATCH] x86_64: Avoid EBDA area in early boot allocator	2006-05-08 09:34:56 -07:00
edac.h	…
elf.h	[PATCH] x86_64: Increase the variability of the process stack on 64bit architectures	2006-03-25 09:10:52 -08:00
emergency-restart.h	…
errno.h	…
fcntl.h	…
fixmap.h	…
floppy.h	[PATCH] x86_64: Don't invoke OOM killer while allocating floppy DMA buffers	2006-03-25 09:10:55 -08:00
fpu32.h	…
futex.h	[PATCH] lightweight robust futexes updates	2006-03-27 08:44:49 -08:00
gart-mapping.h	…
genapic.h	…
hardirq.h	[PATCH] i386/x86-64: Don't ack the APIC for bad interrupts when the APIC is not enabled	2006-02-04 16:43:15 -08:00
hpet.h	[PATCH] x86_64: Fix drift with HPET timer enabled	2006-04-09 11:53:53 -07:00
hw_irq.h	…
i387.h	[PATCH] i386/x86-64: Fix x87 information leak between processes	2006-04-20 07:58:11 -07:00
ia32.h	…
ia32_unistd.h	[PATCH] x86_64: Eliminate IA32_NR_syscalls define	2006-04-09 11:53:53 -07:00
ide.h	…
idle.h	…
io.h	[PATCH] x86_64: inline function prefix with __always_inline in vsyscall	2006-04-11 06:38:57 -07:00
io_apic.h	[PATCH] x86_64: avoid IRQ0 ioapic pin collision	2006-05-08 09:34:56 -07:00
ioctl.h	…
ioctls.h	…
ipcbuf.h	…
ipi.h	…
irq.h	…
kdebug.h	[PATCH] Notifier chain update: API changes	2006-03-27 08:44:50 -08:00
kexec.h	[PATCH] Compilation of kexec/kdump broken	2006-02-03 08:32:09 -08:00
kmap_types.h	…
kprobes.h	…
ldt.h	…
linkage.h	…
local.h	[PATCH] make local_t signed	2006-03-31 12:18:55 -08:00
mach_apic.h	…
mc146818rtc.h	…
mce.h	[PATCH] x86_64: Don't run NMI watchdog during machine checks	2006-04-09 11:53:52 -07:00
mman.h	[PATCH] add asm-generic/mman.h	2006-02-15 15:32:22 -08:00
mmsegment.h	…
mmu.h	…
mmu_context.h	[PATCH] x86_64: {set,clear,test}_bit() related cleanup and pci_mmcfg_init() fix	2006-03-24 07:33:15 -08:00
mmx.h	…
mmzone.h	[PATCH] x86_64: Increase NUMA hash function nodemap	2006-04-18 10:39:19 -07:00
module.h	…
mpspec.h	…
msgbuf.h	…
msi.h	…
msr.h	…
mtrr.h	…
mutex.h	…
namei.h	…
nmi.h	…
node.h	…
numa.h	[PATCH] Configurable NODES_SHIFT	2006-04-11 06:18:39 -07:00
page.h	[PATCH] unify pfn_to_page: x86_64 pfn_to_page	2006-03-27 08:44:44 -08:00
param.h	…
parport.h	…
pci-direct.h	…
pci.h	[PATCH] x86_64: no_iommu removal in pci-gart.c	2006-02-26 09:53:29 -08:00
pda.h	[PATCH] x86_64: Reorder one field of the PDA to reduce padding	2006-03-25 09:10:56 -08:00
percpu.h	[PATCH] for_each_possible_cpu: x86_64	2006-04-19 09:13:49 -07:00
pgalloc.h	[PATCH] x86_64: actively synchronize vmalloc area when registering certain callbacks	2006-03-25 09:10:53 -08:00
pgtable.h	[PATCH] x86_64: actively synchronize vmalloc area when registering certain callbacks	2006-03-25 09:10:53 -08:00
poll.h	[PATCH] POLLRDHUP/EPOLLRDHUP handling for half-closed devices notifications	2006-03-25 08:22:56 -08:00
posix_types.h	…
prctl.h	…
processor.h	[PATCH] arch/i386/kernel/microcode.c: remove the obsolete microcode_ioctl	2006-03-28 09:16:06 -08:00
proto.h	[PATCH] x86_64: Removed duplicated declaration of force_iommu	2006-03-25 09:14:39 -08:00
ptrace.h	…
resource.h	…
rtc.h	…
rwlock.h	…
scatterlist.h	…
seccomp.h	…
sections.h	…
segment.h	…
semaphore.h	…
sembuf.h	…
serial.h	…
setup.h	…
shmbuf.h	…
shmparam.h	…
sigcontext.h	…
sigcontext32.h	…
siginfo.h	…
signal.h	…
smp.h	[PATCH] sched: new sched domain for representing multi-core	2006-03-27 08:44:43 -08:00
socket.h	…
sockios.h	…
sparsemem.h	…
spinlock.h	…
spinlock_types.h	…
stat.h	…
statfs.h	…
string.h	[PATCH] x86_64: Don't define string functions to builtin	2006-03-25 09:10:53 -08:00
suspend.h	[PATCH] x86_64: eliminate set_debug()	2006-03-25 09:10:52 -08:00
swiotlb.h	…
system.h	[PATCH] x86_64: eliminate set_debug()	2006-03-25 09:10:52 -08:00
termbits.h	…
termios.h	…
thread_info.h	…
timex.h	[PATCH] x86_64: fix sync before RDTSC on Intel cpus	2006-04-11 06:38:57 -07:00
tlb.h	…
tlbflush.h	…
topology.h	[PATCH] sched: new sched domain for representing multi-core	2006-03-27 08:44:43 -08:00
types.h	…
uaccess.h	…
ucontext.h	…
unaligned.h	…
unistd.h	[PATCH] Add support for the sys_vmsplice syscall	2006-04-26 10:59:21 +02:00
user.h	…
user32.h	…
vga.h	…
vsyscall.h	…
vsyscall32.h	…
xor.h	…