From: Andi Kleen <a...@linux.intel.com>
Newer glibc did some include namespace "cleanups" and removed
struct ucontext and friends. This already broke a lot of software,
and UML seems to be the latest victim.
Use the typedefs which are still available. They also work on
older gli
Steve VanDeBogart [EMAIL PROTECTED] writes:
Kconfig option for Valgrind. Suppression file, for known non-issues.
Valgrind header files (svn 8534) that define the client request
mechanism used to annotate programs plus a couple lines to integrate
with Kconfig.
Couldn't you just get the
On Mon, Sep 01, 2008 at 10:06:18AM -0400, Jeff Dike wrote:
On Mon, Sep 01, 2008 at 11:32:00AM +0200, Andi Kleen wrote:
Steve VanDeBogart [EMAIL PROTECTED] writes:
Kconfig option for Valgrind. Suppression file, for known non-issues.
Valgrind header files (svn 8534) that define the client
Miklos Szeredi [EMAIL PROTECTED] writes:
FASTCALL is defined empty in -mm, but UML is not compiled with
-mregparm=3 and so this breaks things (I noticed problems with
rwsem_down_write_failed).
Tried recompiling UML with -mregparm=3, but that resulted in a strange
failure immediately after
On Wed, Jan 09, 2008 at 10:20:49PM +0100, Miklos Szeredi wrote:
Miklos Szeredi [EMAIL PROTECTED] writes:
FASTCALL is defined empty in -mm, but UML is not compiled with
-mregparm=3 and so this breaks things (I noticed problems with
rwsem_down_write_failed).
Tried recompiling UML
Ingo Molnar [EMAIL PROTECTED] writes:
the 'fastcall removal' changes to paravirt.c were over-eager: they
removed fastcall annotations from functions that are (or might be)
implemented in assembly. So if someone changes the compiler model,
such as -pg which disables regparm, the kernel breaks
Ingo Molnar [EMAIL PROTECTED] writes:
* Andi Kleen [EMAIL PROTECTED] wrote:
so this patch adds back fastcall annotations. This serves as
documentation for assembly calling-convention dependencies as well.
You should rename it then to asmcall or something.
if then that should
On Tue, Oct 23, 2007 at 04:20:06PM +0200, Ingo Molnar wrote:
* Andi Kleen [EMAIL PROTECTED] wrote:
You should rename it then to asmcall or something.
if then that should be a separate renaming patch.
Well you're asking for the ugly hacks for out of tree code. [...]
nice word
On Tue, Oct 23, 2007 at 05:44:17PM +0200, Ingo Molnar wrote:
* Ingo Molnar [EMAIL PROTECTED] wrote:
[...] -pg should in theory work with -mregparms.
last i checked it didnt work - i'll re-check that.
earlier gcc versions had problems with -mregparm and with -pg. I just
Which
Jeff Dike [EMAIL PROTECTED] writes:
[ This is both 2.6.24 and -stable material ]
SuSE seems to require that binaries have a .note.SuSE section.
Without it, UML segfaults if any parameters are passed on the command
line.
This doesn't make any sense. You must have misanalyzed this.
-Andi
On Tuesday 01 May 2007 20:21:57 Jeff Dike wrote:
Rearrange the i386 cmpxchg code to allow atomic.h to get it without
needing to include system.h. This kills warnings in the UML build
from atomic.h about implicit declarations of cmpxchg symbols. The
i386 build presumably isn't seeing this
On Thursday 05 October 2006 23:38, Paolo 'Blaisorblade' Giarrusso wrote:
Andi Kleen pointed out that -mcmodel=kernel does not make sense for userspace
code and would stop everything from working,
did it work at all with it?
-Andi
Paolo 'Blaisorblade' Giarrusso [EMAIL PROTECTED] writes:
From: Paolo 'Blaisorblade' Giarrusso [EMAIL PROTECTED]
We have never used this flag and recently one user experienced a complaining
warning about this (there was a symbol in the positive half of the address
space
IIRC). So fix it.
On Thursday 29 June 2006 23:36, Jeff Dike wrote:
Andi is making pte_mkexec go away, and UML had one of the last uses.
Actually not go away, but do the correct thing on i386/x86-64.
Just relying on its side effects of setting _USER was bad.
Thanks,
-Andi
Using Tomcat but need to do more? Need
It isn't yet perfect, because we don't yet save floating point context. But
that will come later. Additionally, there's a potential problem since RED
zones will alternate stacks are used, unlike x86_64, so more stack space
(128 bytes more) is used. But this shouldn't be a problem.
Instead,
twice
int_ret_from_syscall already does syscall exit tracing, so
no need to do it again in the caller.
This caused problems for UML and some other special programs doing
syscall interception.
Signed-off-by: Andi Kleen [EMAIL PROTECTED]
Index: linux/arch/x86_64/kernel/entry.S
On Wednesday 26 October 2005 00:13, Paolo 'Blaisorblade' Giarrusso wrote:
I.e. the implementation was written, is present in the tree, but due to
this:
#ifdef CONFIG_RWSEM_GENERIC_SPINLOCK
#include linux/rwsem-spinlock.h /* use a generic implementation */
#else
#include asm/rwsem.h /* use
On Wednesday 26 October 2005 00:44, Blaisorblade wrote:
For what I see, that's based on the tradeoff between space and contention -
for instance there are few zones only, so there's no big waste.
If space is precious it shouldn't be padded at all.
In practice, interpreting !X86_GENERIC as I
Jeff Dike [EMAIL PROTECTED] writes:
Noticed by Al Viro - SMP on x86_64 is fundamentally broken due to
UML's reuse of the host arch's percpu stuff. This is OK on x86, but
the x86_64 pda stuff just won't work for UML.
The generic one should work too, it's just less efficient.
So you can
Arjan van de Ven [EMAIL PROTECTED] writes:
On Sun, 2005-05-08 at 13:50 +1000, Rusty Russell wrote:
My preference would be the second: fix the scheduler so it doesn't rely
on regular polling. However, as long as the UP case runs with no timer
interrupts when idle, many people will be happy
On Sun, May 08, 2005 at 03:44:14PM +0200, Arjan van de Ven wrote:
But it has to be *really* lightweight because these transistion can
happen a lot (consider a CPU that very often goes to sleep for a short time)
lightweight is good of course. But even if it's medium weight.. it just
means
I agree this can be a bit kludgy, so if you want add another solution.
Patch is ok for me, but you have a good chance of having broken
other archs too due to the string.c changes. Probably needs some testing.
-Andi
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On Sun, May 01, 2005 at 08:45:15PM +0200, [EMAIL PROTECTED] wrote:
From: Paolo 'Blaisorblade' Giarrusso [EMAIL PROTECTED]
Cc: Andi Kleen [EMAIL PROTECTED]
These are some trivial fixes for the x86-64 subarch module support. The only
potential problem is that I have to modify arch/x86_64
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