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[PATCH 1/1] x86, e820: Remove direct mapping of reserved space for HT hole around 1TB
The entire HT hole and also the unused address range before that hole need to be excluded from direct mapping. Otherwise speculative accesses to that reserved region can happen which cause machine checks. Cc: stable@kernel.org # > 2.6.32 ...
Message posted on the October 11th, 2011 - 6:20 PM ET
[PATCH 1/2] x86: make e820 output consistent with other resource printks
This tidies e820 output by adding an "e820" prefix and printing ranges similarly to the way we print struct resource with %pR, e.g.: - BIOS-e820: 0000000000000000 - 000000000009f400 (usable) + BIOS-e820: [mem ...
Message posted on the February 13th, 2012 - 7:10 PM ET
[PATCH] x86: tidy e820 output
This tidies e820 output by adding an "e820" prefix and printing ranges in the same style we use for struct resource with %pR, e.g.: - BIOS-e820: 0000000000000000 - 000000000009f400 (usable) + BIOS-e820: [mem 0x00000000-0x0009f3ff] ...
Message posted on the September 22nd, 2010 - 1:30 PM ET
[PATCH 1/2] x86: change names of e820 memory map type
E820_RAM -> E820_TYPE_RAM E820_ACPI-> E820_TYPE_ACPI ... names like E820_RAM is conflict-prone, because user is more likely to define a macro like this if did not strongly aware this name have been defined by e820.h Signed-off-by: liguang ...
Message posted on the March 1st, 2013 - 12:30 AM ET
[PATCH 28/39] x86: Remove not used early_res code
and some functions in e820.c that are not used anymore Signed-off-by: Yinghai Lu <yinghai@kernel.org> arch/x86/include/asm/e820.h | 14 - arch/x86/kernel/e820.c | 42 include/linux/early_res.h | 23 -- kernel/early_res.c | ...
Answer posted on the April 9th, 2010 - 2:20 AM ET
[PATCH v2] x86: remove NX from video bios area
5bd5a452662bc37c54fb6828db1a3faf87e6511c make area between BIOS_BEGIN and BIOS_END NX when boot machine with ACPI enable. It make my machine can't boot, system hang with black screen very early. The more detail, please see: ...
Message posted on the November 17th, 2011 - 3:30 AM ET
[PATCHSET x86/mm] memblock, x86: Allow node info in memblock and remove x86 specific memblock code
Hello, There are multiple ways to represent memory configuration during boot. Even with the latest incarnation - nobootmem, the configuration isn't centralized or easy to use. NUMA information lives in early_node_map[] while memory config and ...
Message posted on the July 12th, 2011 - 5:20 AM ET
Use of memmap= to forcibly recover memory in 3GB-4GB range - is this safe?
I have a Foxconn mainboard that supports 64-bit CPUs and DDR2 memory up to 4GB. Two days ago I bought memory to max out the memory capacity. When I booted up the system with my new memory sticks, I found out that the system only presented around ...
Message posted on the January 15th, 2013 - 8:50 PM ET
Bug#685047: Debian Wheezy B1 installer for amd64 fails during base system install reporting unmet (awk) dependencies.
Package: installation-reports Boot method: netinst running from USB thumbdrive Image version: http://cdimage.debian.org/cdimage/wheezy_di_beta1/amd64/iso-cd/debian-wheezy-DI-b1-amd64-netinst.iso ...
Message posted on the August 16th, 2012 - 1:10 AM ET
x86: Regression in 3.6.4, bisected to "Exclude E820_RESERVED regions..."
Hello, I've just bisected a problem with 3.6.4. I had to revert commit 54ce8ce298f382a06186cb4672ad6aa090b050b6 (1bbbbe779aabe1f0768c2bf8f8c0a5583679b54a in mainline), otherwise my box didn't boot. I can't provide any output, because I don't see ...
Message posted on the October 29th, 2012 - 5:30 AM ET
__cpuinit early_init_intel() called twice
Well, I just realized that there are two "Disabled fast string operations" entries in the boot log - that means early_init_intel() is called _twice_. I had expected something else. Is this the expected behaviour or shall I have a look at ...
Message posted on the October 17th, 2011 - 12:40 PM ET
missing 700 MB of RAM
Hello, I've got 8 GB RAM installed, but linux reports 7,3 GB. Where is the missing RAM (700 MB)? free total used free shared buffers cached Mem: 7706580 5271096 2435484 0 79232 3049120 -/+ ...
Message posted on the November 21st, 2010 - 2:10 PM ET
Bootup regression introduced by 7bd0b0f0da3b1ec11cbcc798eb0ef747a1184077 ("memblock: Reimplement memblock allocation using reverse free area iterato") in v3.3-rc0
Hey, With that patch I get this when trying to launch a 4GB xen guest: kernel="/mnt/lab/latest/vmlinuz" ramdisk="/mnt/lab/latest/initramfs.cpio.gz" extra="console=hvc0 debug earlyprintk=xen" memory@96 maxmem92 ...
Message posted on the January 10th, 2012 - 3:40 PM ET
Device tree on x86, part v3
This patchset introduces device tree support on x86. The device tree is passed by the bootloader via setup_data. It is used as an additional source of information and does not replace the "traditional" x86 boot page. Right now we get the ...
Message posted on the January 23rd, 2011 - 11:30 PM ET