on two node system (16g RAM) with numa config I got this crash:
get_memcfg_from_srat: assigning address to rsdp
RSD PTR v0 [ACPIAM]
ACPI: Too big length in RSDT: 92
failed to get NUMA memory information from SRAT table
NUMA - single node, flat memory mode
Node: 0, start_pfn: 0, end_pfn: 153
Setting physnode_map array to node 0 for pfns:
0
...
Pid: 0, comm: swapper Not tainted 2.6.26-rc4 #4
[<80b41289>] hlt_loop+0x0/0x3
[<8011efa0>] ? alloc_remap+0x50/0x70
[<8079e32e>] alloc_node_mem_map+0x5e/0xa0
[<8012e77b>] ? printk+0x1b/0x20
[<80b590f6>] free_area_init_node+0xc6/0x470
[<80b588fc>] ? __alloc_bootmem_node+0x2c/0x50
[<80b58ad8>] ? find_min_pfn_for_node+0x38/0x70
[<8012e77b>] ? printk+0x1b/0x20
[<80b597c4>] free_area_init_nodes+0x254/0x2d0
[<80b544d7>] zone_sizes_init+0x97/0xa0
[<80b48a03>] setup_arch+0x383/0x530
[<8012e77b>] ? printk+0x1b/0x20
[<80b41aa4>] start_kernel+0x64/0x350
[<80b412d8>] i386_start_kernel+0x8/0x10
=======================
this patch increases the acpi table limit to 32.
Also match early_ioremap() with early_iounmap().
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
reserve early numa kva, so it will not clash with new RAMDISK
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
introduce init_pg_table_start, so xen PV could specify the value.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Create a separate centaur_64.c file in the cpu/ dir for
the useful parts to live in.
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Create a separate intel_64.c file in the cpu/ dir for
the useful parts to live in.
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Create a separate amd_64.c file in the cpu/ dir for
the useful parts to live in.
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
arch/x86/kernel/mmconf-fam10h_64.c is missing the prototypes, which
are decalred in arch/x86/kernel/setup_64.c. Move the prototypes and
the inline stubs to the appropriate header file.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
The commit
commit 4b82b27770
Author: Cyrill Gorcunov <gorcunov@gmail.com>
Date: Sat May 24 19:36:35 2008 +0400
set nmi_watchdog to NMI_IO_APIC as by default. This causes hangs on some
machines with buggy watchdogs. Fix it - i.e. restore old behaviour.
Thanks to Sitsofe Wheeler and Adrian Bunk for catching the problem
and Maciej W. Rozycki for explanation what is going on there.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
CC: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Add pte_flags() to extract the flags from a pte. This is a special
case of pte_val() which is only guaranteed to return the pte's flags
correctly; the page number may be corrupted or missing.
The intent is to allow paravirt implementations to return pte flags
without having to do any translation of the page number (most notably,
Xen).
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Since cpu_online_map is touched (by for_each_online_cpu)
at moment when cpu_callin_map is already filled up we can
get rid of its checking at all
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: hpa@zytor.com
Cc: mingo@redhat.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
apic_write_around will be expanded to apic_write in 64bit mode
anyway. Only a few CPUs (well, old CPUs to be precise) requires
such an action. In general it should not hurt and could be cleaned
up for apic_write (just in case)
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: hpa@zytor.com
Cc: mingo@redhat.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
UP builds with LOCAL_APIC=y and IO_APIC=n fail with a missing
reference to mp_bus_not_pci. Distangle the mpparse code some more and
move the ioapic specific bus check into a separate function.
This code needs sume urgent un#ifdef surgery all over the place.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This pushes the lock a fair way down and the final kill looks like it
should be an easy project for someone who wants to have a shot at it.
Signed-off-by: Alan Cox <alan@redhat.com>
Cc: mingo@redhat.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Sitsofe Wheeler reported boot problems on linux-next.
It looks like the same issue as found by Soeren Sandman in 7575217f656a93,
"x86: initialize all fields of mp_irqs[mp_irq_entries]".
But his fix is also not complete, as dstapic is used before it assigned.
Reported-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Bisected-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Commit "x86: make config_irqsrc not MPspec specific" introduced some uses
of uninitialized fields in mp_config_acpi_legacy_irqs(). I need the
following patch to get sched-devel/master to boot.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
the new output is:
MPTABLE: OEM ID: SUN
MPTABLE: Product ID: 4600 M2
MPTABLE: APIC at: 0x
instead of it all in one line with <6> and double Product ID...
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Add to the kernels boot memory map 'memmap' entries found in
the EFI memory descriptors passed in from the BIOS.
On EFI systems, up to E820MAX == 128 memory map entries can
be passed via the legacy E820 interface (limited by the size
of the 'zeropage'). These entries can be duplicated in the
EFI descriptors also passed from the BIOS, and possibly more
entries passed by the EFI interface, which does not have the
E820MAX limit on number of memory map entries.
This code doesn't worry about the likely duplicate, overlapping
or (unlikely) conflicting entries between the EFI map and the
E820 map. It just dumps all the EFI entries into the memmap[]
array (which already has the E820 entries) and lets the existing
routine sanitize_e820_map() sort the mess out.
Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Elaborate on the comment for sanitize_e820_map(), epxlaining more what
it does, what it inputs, and what it returns. Rearrange the placement of
this comment to fit kernel conventions, before the routine's code rather
than buried inside it.
Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
The map size counter passed into, and back out of, sanitize_e820_map(),
was an eight bit type (char or u8), as derived from its origins in
legacy BIOS E820 structures. This patch changes that type to an 'int',
to allow this sanitize routine to also be used on larger maps (larger
than the 256 count that fits in a char). The legacy BIOS E820 interface
of course does not change; that remains at 8 bits for this count, holding
up to E820MAX == 128 entries. But the kernel internals can handle more
when those additional memory map entries are passed from the BIOS via
EFI interfaces.
Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Extend internal boot time memory tables to allow for up to
three entries per node, which may be larger than the 128 E820MAX
entries handled by the legacy BIOS E820 interface. The EFI
interface, if present, is capable of passing memory map
entries for these larger node counts.
This patch requires an earlier patch that rewrote code depending
on these array sizes from using E820MAX explicitly to size loops,
to instead using ARRAY_SIZE() of the applicable array.
Another patch following this one will provide the code to pick
up additional memory entries passed via the EFI interface from
the BIOS and insert them in the following, now enlarged, arrays.
Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
