23 Jul, 2007
10 commits
-
local_cmpxchg() should not use any LOCK prefix. This change probably
got lost in the move to cmpxchg.h.Signed-off-by: Mathieu Desnoyers
Acked-by: Christoph Lameter
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
kstat_irqs(0) includes the count of interrupt 0 from all cpus, not just
the current cpu. The updated interrupt 0 on other cpus can stop the
nmi_watchdog from tripping, so only include the current cpu's int 0.Signed-off-by: Keith Owens
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
This mainly changes the nops for alternative, so not very revolutionary.
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
Previously this flag was only used on 32bit, but some shared code can use
it now.Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
Fix
WARNING: arch/i386/kernel/built-in.o(.text+0xdd0d): Section mismatch: reference to .init.data:cpu_llc_id (between 'set_cpu_sibling_map' and 'initialize_secondary')
WARNING: arch/i386/kernel/built-in.o(.text+0xdd1b): Section mismatch: reference to .init.data:cpu_llc_id (between 'set_cpu_sibling_map' and 'initialize_secondary')Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
When a machine check or NMI occurs while multiple byte code is patched
the CPU could theoretically see an inconsistent instruction and crash.
Prevent this by temporarily disabling MCEs and returning early in the
NMI handler.Based on discussion with Mathieu Desnoyers.
Cc: Mathieu Desnoyers
Cc: Jeremy Fitzhardinge
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
Reenable kprobes and alternative patching when the kernel text is write
protected by DEBUG_RODATAAdd a general utility function to change write protected text. The new
function remaps the code using vmap to write it and takes care of CPU
synchronization. It also does CLFLUSH to make icache recovery faster.There are some limitations on when the function can be used, see the
comment.This is a newer version that also changes the paravirt_ops code.
text_poke also supports multi byte patching now.Contains bug fixes from Zach Amsden and suggestions from Mathieu
Desnoyers.Cc: Jan Beulich
Cc: Jeremy Fitzhardinge
Cc: Mathieu Desnoyers
Cc: Zach Amsden
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
This patch uses the read and write functions provided at system.h
for control registers instead of writting raw assembly over and
over again in .c files. Functions to manipulate cr2 and cr8 were
provided, as they were lacking.Also, removed some extra space after closing brackets
Signed-off-by: Glauber de Oliveira Costa
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
This patch makes the i386 behave the same way that x86_64 does when a
segfault happens. A line gets printed to the kernel log so that tools
that need to check for failures can behave more uniformly between
debug.show_unhandled_signals sysctl variable to 0 (or by doing echo 0 >
/proc/sys/debug/exception-trace)Also, all of the lines being printed are now using printk_ratelimit() to
deny the ability of DoS from a local user with a program like the
following:main()
{
while (1)
if (!fork()) *(int *)0 = 0;
}This new revision also includes the fix that Andrew did which got rid of
new sysctl that was added to the system in earlier versions of this.
Also, 'show-unhandled-signals' sysctl has been renamed back to the old
'exception-trace' to avoid breakage of people's scripts.AK: Enabling by default for i386 will be likely controversal, but let's see what happens
AK: Really folks, before complaining just fix your segfaults
AK: I bet this will find a lot of silent issuesSigned-off-by: Masoud Sharbiani
Signed-off-by: Andi Kleen
[ Personally, I've found the complaints useful on x86-64, so I'm all for
this. That said, I wonder if we could do it more prettily.. -Linus ]
Signed-off-by: Linus Torvalds -
Fix a mismerge in commit 8b6f50ef1d5cc86b278eb42bc91630fad455fb10:
"spufs: make signal-notification files readonly for NOSCHED contexts",
where structs got duplicated.Signed-off-by: Al Viro
Acked-by: Jeremy Kerr
Signed-off-by: Linus Torvalds
22 Jul, 2007
30 commits
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* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[NET]: Add missing entries to family name tables
[NET]: Make NETDEVICES depend on NET.
[IPV6]: endianness bug in ip6_tunnel
[IrDA]: TOSHIBA_FIR depends on virt_to_bus
[IrDA]: EP7211 IR driver port to the latest SIR API
[IrDA] Typo fix in irnetlink.c copyright
[NET]: Fix loopback crashes when multiqueue is enabled.
[IPV4]: Fix inetpeer gcc-4.2 warnings -
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
[SPARC64]: ERROR: "sys_ioctl" [arch/sparc64/solaris/solaris.ko] undefined!
[SPARC32]: Make PAGE_SHARED a read-mostly variable.
[SPARC32]: Take enable_irq/disable_irq out of line.
[SPARC32]: clean include/asm-sparc/irq.h
[SPARC32]: Fix rounding errors in ndelay/udelay implementation. -
Add missing entries to af_family_clock_key_strings[].
Signed-off-by: David Howells
Signed-off-by: David S. Miller -
From: Christoph Hellwig
On Fri, Jul 20, 2007 at 09:24:42AM -0400, Horst H. von Brand wrote:
> When building v2.6.22-3478-g275afca on sparc64 (.config attached) I get:
>
> MODPOST vmlinux
> Building modules, stage 2.
> MODPOST 463 modules
> ERROR: "sys_ioctl" [arch/sparc64/solaris/solaris.ko] undefined!Sorry, my fault.
It looked to me like sparc64 exports sys_ioctl on it's own, but it
only exports compat_sys_ioctl on it's own.Signed-off-by: David S. Miller
-
same scheme as for sparc64, same rationale
Signed-off-by: Al Viro
Signed-off-by: David S. Miller -
Signed-off-by: Al Viro
Signed-off-by: David S. Miller -
Move stuff used only by arch/sparc/kernel/* into arch/sparc/kernel/irq.h
and into individual files in there (e.g. macros internal to sun4m_irq.c,
etc.)Signed-off-by: Al Viro
Signed-off-by: David S. Miller -
__ndelay and __udelay have not been delayung >= specified time.
The problem with __ndelay has been tacked down to the rounding of the
multiplier constant. By changing this, delays > app 18us are correctly
calculated.
The problem with __udelay has also been tracked down to rounding issues.
Changing the multiplier constant (to match that used in sparc64) corrects
for large delays and adding in a rounding constant corrects for trunctaion
errors in the claculations.
Many short delays will return without looping. This is not an error as there
is the fixed delay of doing all the maths to calculate the loop count.Signed-off-by: Mark Fortescue
Signed-off-by: David S. Miller -
Enabling drivers from "Devices > Networking" (in menuconfig), for
example SLIP and/or PLIP, throws link time errors when CONFIG_NET itself
is =n. Have CONFIG_NETDEVICES depend on CONFIG_NET.Signed-off-by: Jan Engelhardt
Signed-off-by: David S. Miller -
Signed-off-by: Al Viro
Signed-off-by: David S. Miller -
Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Samuel Ortiz
Signed-off-by: David S. Miller -
The EP7211 SIR driver was the only one left without a new SIR API port.
Signed-off-by: Samuel Ortiz
Signed-off-by: David S. Miller -
Signed-off-by: Samuel Ortiz
Signed-off-by: David S. Miller -
This patch introduces struct pci_sysdata to x86 and x86-64, and
converts the existing two users (NUMA, Calgary) to use it.This lays the groundwork for having other users of sysdata, such as
the PCI domains work.The Calgary bits are tested, the NUMA bits just look ok.
Signed-off-by: Jeff Garzik
Signed-off-by: Muli Ben-Yehuda
Signed-off-by: Linus Torvalds -
This makes k8topology multicore aware instead of limited to signle- and
dual-core CPUs. It uses the CPUID to be more future proof.Signed-off-by: Joachim Deguara
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
Leftovers from the removal of the more general (but abandoned) SMP
alternatives.Signed-off-by: Jan Beulich
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
Signed-off-by: Robert P. J. Day
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
Dead or misnamed CONFIG_BALANCED_IRQ_DEBUG found by Robert P. J. Day.
It's not a Kconfig variable.Since this debug code is ancient, I suggest to get rid of this
misleading CONFIG_ macro by deleting all of this debug code.Signed-off-by: Stefan Richter
Cc: Ingo Molnar
Cc: "Robert P. J. Day"
Signed-off-by: Andrew Morton
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
Insert HPET resources after pci probing has been completed in order to
avoid resource conflicts with PCI resource reservation. With this change
the HPET firmware resources will be identified, but it should also not
cause issues when the HPET address falls on a BAR in a PCI device, and the
PCI enumeration cannot reserve the resources.Signed-off-by: Aaron Durbin
Cc: john stultz
Cc: Thomas Gleixner
Cc: Len Brown
Signed-off-by: Andrew Morton
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
This builds upon the existing geode infrastructure, but adds southbridge
support, some GPIO functions, and a header file (asm-i386/geode.h) with some
useful GX/LX detection tests.The majority of this code was written by Jordan Crouse.
Signed-off-by: Jordan Crouse
Signed-off-by: Andres Salomon
Cc: Alan Cox
Cc: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
Signed-off-by: Dan Aloni
Signed-off-by: Andrew Morton
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
Users that use kernel log filtering (e.g. via syslogd or a proprietry method)
wouldn't like to see warning prints that are not really warnings.Signed-off-by: Dan Aloni
Signed-off-by: Andrew Morton
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
get_vm_area always returns an area with an adjacent guard page. That guard
page is included in vm_struct.size. iounmap uses vm_struct.size to
determine how much address space needs to have change_page_attr applied to
it, which will BUG if applied to the guard page.This patch adds a helper function - get_vm_area_size() in linux/vmalloc.h -
to return the actual size of a vm area, and uses it to make iounmap do the
right thing. There are probably other places which should be using
get_vm_area_size().Thanks to Dave Young for debugging the
problem.[ Andi, it wasn't clear to me whether x86_64 needs the same fix. ]
Signed-off-by: Jeremy Fitzhardinge
Cc: Dave Young
Cc: Chuck Ebbert
Signed-off-by: Andrew Morton
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
setup_pit_timer is declared in asm-i386/timer.h. Move it to the pit header
file, so it can be used by x86_64 as well.Move also the PIT constants.
Signed-off-by: Thomas Gleixner
Cc: Ingo Molnar
Cc: john stultz
Signed-off-by: Andrew Morton
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
I fixed this in x86_64. Looks like the kind of thing that will break voyager
on i386.Signed-off-by: Chris Wright
Signed-off-by: Thomas Gleixner
Cc: Ingo Molnar
Cc: john stultz
Signed-off-by: Andrew Morton
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
Remove the volatile in apic. We have a cpu_relax() in the wait loop. Fix a
coding style issue while at it.Signed-off-by: Thomas Gleixner
Cc: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
[akpm@linux-foundation.org: build fix]
Signed-off-by: Yinghai Lu
Cc: Alan Cox
Cc: "Eric W. Biederman"
Cc: Muli Ben-Yehuda
Cc: Vivek Goyal
Cc: Dave Jones
Signed-off-by: Andrew Morton
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
When NUMA emulation succeeds, acpi_numa needs to be set to -1 so that
srat_disabled() will always return true. We won't be calling
acpi_scan_nodes() or registering the true nodes we've found.[hugh@veritas.com: Fix x86_64 CONFIG_NUMA_EMU build: acpi_numa needs CONFIG_ACPI_NUMA]
Signed-off-by: David Rientjes
Cc: Len Brown
Signed-off-by: Hugh Dickins
Signed-off-by: Andrew Morton
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
e820_hole_size() now uses the newly extracted helper function,
e820_find_active_region(), to determine the size of usable RAM in a range of
PFN's.This was previously broken because of two reasons:
- The start and end PFN's of each e820 entry were not properly rounded
prior to excluding those entries in the range, and- Entries smaller than a page were not properly excluded from being
accumulated.This resulted in emulated nodes being incorrectly mapped to ranges that
were completely reserved and not candidates for being registered as
active ranges.Signed-off-by: David Rientjes
Signed-off-by: Andrew Morton
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds -
For K8 system: 4G RAM with memory hole remapping enabled, or more than 4G
RAM installed. when using kexec to load second kernel. In the second
kernel, when mem is allocated for GART, it will do the memset for clear, it
will cause restart, because some device still used that for dma. solution
will be:in second kernel: disable that at first before we try to allocate mem for
it. or in the first kernel: do disable that before shutdown.
Andi/Eric/Alan prefer to second one for clean shutdown in first kernel.
Andi also point out need to consider to AGP enable but mem less 4G case
too.Signed-off-by: Yinghai Lu
Cc: Alan Cox
Cc: "Eric W. Biederman"
Cc: Muli Ben-Yehuda
Cc: Vivek Goyal
Cc: Dave Jones
Signed-off-by: Andrew Morton
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds
