On Sun, Apr 22, 2007 at 11:26:58PM +0400, Vitaly Bordug wrote:
> diff --git a/arch/powerpc/boot/dts/mpc885ads.dts
> b/arch/powerpc/boot/dts/mpc885ads.dts
> index 90e047a..330ac91 100644
> --- a/arch/powerpc/boot/dts/mpc885ads.dts
> +++ b/arch/powerpc/boot/dts/mpc885ads.dts
> @@ -112,6 +112,18 @@
>
Eric W. Biederman wrote:
> If (cpu_has_pse) it may only be an additional two pages.
> INIT_MAP_BEYOND is currently mapping a lot more then that.
>
Ah, yes. It allocates an extra two pages for pagetables, and then maps
an extra 8MB or so.
>> Would that be necessary? Is there any need to remap
* Linus Torvalds <[EMAIL PROTECTED]> wrote:
> but the point I'm trying to make is that X shouldn't get more CPU-time
> because it's "more important" (it's not: and as noted earlier,
> thinking that it's more important skews the problem and makes for too
> *much* scheduling). X should get more
Jeremy Fitzhardinge wrote:
Why not? Er, except in the case where the page is needed to map itself
- but that can be dealt with with a transient fixmap mapping.
It would be *trivial* to make a certain number of page table slots
available at the end of the head.S-generated map.
-hpa
Hmm, I have links like this on my system already:
$ ls -l /sys/class/infiniband/mlx4_0/device
lrwxrwxrwx 1 root root 0 2007-04-23 12:14
/sys/class/infiniband/mlx4_0/device ->
../../../devices/pci:00/:00:06.0/:0d:00.0
the patch actually looks sane but I don't understand why i
On 04/16, Rafael J. Wysocki wrote:
>
> Appended is the updated version of the patch (in addition to the changes
> mentioned above I've eliminated the magic constant 0x0008 from cpu.c by
> changing the new definitions in notifier.h).
Most sub-systems doesn't care about CPU_TASKS_FROZEN bit. Take fo
> +if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS)
> {
> +ehca_err(&shca->ib_device, "Can't query port properties");
> +ret = -EINVAL;
> +goto modify_port1;
> +}
> +
> +cap = (rblock->capability_mask | props->set_port_
H. Peter Anvin wrote:
> It would be *trivial* to make a certain number of page table slots
> available at the end of the head.S-generated map.
Or you could use a fixmap.
J
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
Dmitry Torokhov napsal(a):
> For devices that require tailored application (for example that glove
> - I am not sure how a generic application could control it) old
> phantom way of controlling via ioctl will suffice. The device may
> still use input layer to report back coordinates.
And how about
Gene Heskett wrote:
> This message prompted me to do some checking in re context switches myself,
> and I've come to the conclusion that there could be a bug in vmstat itself.
Perhaps. perhaps not. :)
> Run singly the context switching is reasonable even for a -19 niceness of x,
> its only show
Jeremy Fitzhardinge <[EMAIL PROTECTED]> writes:
> H. Peter Anvin wrote:
>> It would be *trivial* to make a certain number of page table slots
>> available at the end of the head.S-generated map.
>
> Or you could use a fixmap.
That certain number of page table slots should be the fixmap slots.
If
OOM killed tasks have access to memory reserves as specified by the
TIF_MEMDIE flag in the hopes that it will quickly exit. If such a task
has memory allocations constrained by cpusets, we may encounter a
deadlock if a blocking task cannot exit because it cannot allocate the
necessary memory.
We
On Mon, 23 Apr 2007, Cornelia Huck wrote:
> On Sun, 22 Apr 2007 10:40:51 -0700,
> Greg KH <[EMAIL PROTECTED]> wrote:
>
> > > Looking some more, kobject_get_path() is used for kobject renaming,
> > > uevent handling, and a little bit in the input core. None of these
> > > things
> > > should tr
* Linus Torvalds <[EMAIL PROTECTED]> wrote:
> > 4 0 0 475752 13492 17632000 0 0 107 1477 85 15 0
> > 0 0
> > 4 0 0 475752 13492 17632000 0 0 122 1498 84 16 0
> > 0 0
>
> Did you even *look* at your own numbers? Maybe you looked at
> "int
On Mon, 23 Apr 2007 08:59:57 +0100
Christoph Hellwig wrote:
> On Mon, Apr 23, 2007 at 10:14:27AM +0400, Vitaly Bordug wrote:
> > On Sun, 22 Apr 2007 23:49:41 +0200
> > Arnd Bergmann wrote:
> >
> > > On Sunday 22 April 2007, Vitaly Bordug wrote:
> > > > This utilizes PCMCIA on mpc885ads and mpc866
On Monday, 23 April 2007 16:19, Gautham R Shenoy wrote:
> Hi Satyam,
> On Mon, Apr 23, 2007 at 09:39:30AM +0530, Satyam Sharma wrote:
> > Hi Rafael,
> >
> > >+/*
> > >+ * Per task flags used by the freezer
> > >+ *
> > >+ * They should not be referred to directly outside of this file.
> >
Hi,
On Monday, 23 April 2007 06:09, Satyam Sharma wrote:
> Hi Rafael,
>
[--snip--]
>
> Also, I do have several gripes against the naming of some of these functions:
>
> > static inline int freezing(struct task_struct *p)
>
> This could be called task_should_freeze().
>
> > /*
> > - * Someti
Hi,
On Monday, 23 April 2007 12:40, Pavel Machek wrote:
> Hi!
>
> > Fix the problem with kthread_stop() that causes the freezer to fail if a
> > freezable thread is attempting to stop a frozen one and that may cause the
> > freezer to fail if the thread being stopped is freezable and
> > try_to_f
On Monday, 23 April 2007 14:35, Gautham R Shenoy wrote:
> On Sun, Apr 22, 2007 at 09:40:59PM +0200, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki <[EMAIL PROTECTED]>
> >
> > Fix the problem with kthread_stop() that causes the freezer to fail if a
> > freezable thread is attempting to stop a
On Monday, 23 April 2007 21:03, Oleg Nesterov wrote:
> On 04/23, Gautham R Shenoy wrote:
> >
> > On Sun, Apr 22, 2007 at 09:40:59PM +0200, Rafael J. Wysocki wrote:
> > > /*
> > > @@ -232,6 +233,14 @@ int kthread_stop(struct task_struct *k)
> > >
> > > /* Now set kthread_should_stop() to true, a
On Monday, 23 April 2007 15:17, Gautham R Shenoy wrote:
> On Sun, Apr 22, 2007 at 09:39:26PM +0200, Rafael J. Wysocki wrote:
> > @@ -63,9 +100,9 @@ static inline int thaw_process(struct ta
> > */
> > static inline void frozen_process(struct task_struct *p)
> > {
> > - p->flags |= PF_FROZEN;
>
> +/*
> + * Allow tasks that have access to memory reserves because they have
> + * been OOM killed to get memory anywhere.
> + */
> +if (unlikely(test_tsk_thread_flag(current, TIF_MEMDIE)))
This should be test_thread_flag()
-Andi
-
To unsubscribe from thi
On Mon, 23 Apr 2007, Ingo Molnar wrote:
>
> The "give scheduler money" transaction can be both an "implicit
> transaction" (for example when writing to UNIX domain sockets or
> blocking on a pipe, etc.), or it could be an "explicit transaction":
> sched_yield_to(). This latter i've already im
Hi !
On Mon, Apr 23, 2007 at 09:11:43PM +0200, Ingo Molnar wrote:
>
> * Linus Torvalds <[EMAIL PROTECTED]> wrote:
>
> > but the point I'm trying to make is that X shouldn't get more CPU-time
> > because it's "more important" (it's not: and as noted earlier,
> > thinking that it's more importan
On Mon, 23 Apr 2007, Dave Jones wrote:
> =
> [ INFO: inconsistent lock state ]
> 2.6.20-1.3094.fc7 #1
> -
> inconsistent {hardirq-on-W} -> {in-hardirq-W} usage.
> swapper/0 [HC1[1]:SC0[0]:HE0:SE1] takes:
> (&port_lock_key){++..}, at:
* Linus Torvalds <[EMAIL PROTECTED]> wrote:
> > The "give scheduler money" transaction can be both an "implicit
> > transaction" (for example when writing to UNIX domain sockets or
> > blocking on a pipe, etc.), or it could be an "explicit transaction":
> > sched_yield_to(). This latter i've a
On Mon, Apr 23, 2007 at 10:39:56PM +0400, Oleg Nesterov wrote:
> On 04/23, Gautham R Shenoy wrote:
> >
> > On Sat, Apr 21, 2007 at 01:12:09AM +0400, Oleg Nesterov wrote:
> > > On 04/19, Gautham R Shenoy wrote:
> > > >
> > > > @@ -63,12 +74,16 @@ void refrigerator(void)
> > > > recalc_sigpen
Eric W. Biederman wrote:
Jeremy Fitzhardinge <[EMAIL PROTECTED]> writes:
H. Peter Anvin wrote:
It would be *trivial* to make a certain number of page table slots
available at the end of the head.S-generated map.
Or you could use a fixmap.
That certain number of page table slots should be t
On Mon, 23 Apr 2007, James Bottomley wrote:
> On Mon, 2007-04-23 at 00:45 +0200, Guennadi Liakhovetski wrote:
> > Right, thinko. How about using his:
> >
> > + int pages = DIV_ROUND_UP(size, PAGE_SIZE);
>
> Actually, no ... this has to be size >> PAGE_SHIFT. The reason being
> that the alloc
* Ingo Molnar <[EMAIL PROTECTED]> wrote:
> (we obviously dont want to allow people to 'share' their loans with
> others ;), nor do we want to allow a net negative balance. CFS is
> really brutally cold-hearted, it has a strict 'no loans' policy - the
> easiest economic way to manage 'inflation
I got this on resume; it looks like a Bluetooth and/or USB problem.
PM: Removing info for No Bus:hci0
BUG: sleeping function called from invalid context at net/core/sock.c:1523
in_atomic():1, irqs_disabled():0
1 lock held by khubd/180:
#0: (old_style_rw_init#2){-.-?}, at: []
hci_sock_dev_event+
On 04/23, Rafael J. Wysocki wrote:
>
> On Monday, 23 April 2007 14:35, Gautham R Shenoy wrote:
> > > + if (!freezer_should_exempt(current)) {
> > task_lock(k);
> > > + /* We are freezable, so we must make sure that the thread being
> > > + * stopped is not frozen and wi
Would this work? Contains a solution somewhat along the lines of your
thoughts on the subject.
SLAB: Fix sysfs directory handling
This fixes the problem that SLUB does not track the names of aliased
slabs by changing the way that SLUB manages the files in /sys/slab.
If the slab that is being c
On Sun, Apr 22, 2007 at 01:31:55PM +0100, Christoph Hellwig wrote:
> On Thu, Apr 19, 2007 at 01:58:45AM -0600, Eric W. Biederman wrote:
> > From: Eric W. Biederman <[EMAIL PROTECTED]>
> >
> > This patch modifies the startup of eehd to use kthread_run
> > not a combination of kernel_thread and daem
On Apr 23, 2007 15:04 +0530, Kalpak Shah wrote:
> On Mon, 2007-04-23 at 12:49 +0530, Karuna sagar K wrote:
> > The tool estimates the cross-chunk references from an extt2/3 file
> > system. It considers a block group as one chunk and calcuates how many
> > block groups does a file span across. So,
OOM killed tasks have access to memory reserves as specified by the
TIF_MEMDIE flag in the hopes that it will quickly exit. If such a task
has memory allocations constrained by cpusets, we may encounter a
deadlock if a blocking task cannot exit because it cannot allocate the
necessary memory.
We
On 4/23/07, Ingo Molnar <[EMAIL PROTECTED]> wrote:
Basically this hack is bad on policy grounds because it is giving X an
"legislated, unfair monopoly" on the system. It's the equivalent of a
state-guaranteed monopoly in certain 'strategic industries'. It has some
advantages but it is very much n
* Ingo Molnar <[EMAIL PROTECTED]> wrote:
> sorry, i was a bit imprecise here. There is a case where CFS can give
> out a 'loan' to tasks. The scheduler tick has a low resolution, so it
> is fundamentally inevitable [*] that tasks will run a bit more than
> they should, and at a heavy context-s
Il giorno lun, 23/04/2007 alle 14.38 -0400, Gerhard Mack ha scritto:
> On Mon, 23 Apr 2007, Roberto De Ioris wrote:
> > Hi all,
> > this is a very simple module that allows bind() to tcp/udp port (>=1024)
> > only for the uids defined in a configfs tree.
> >
> > It is a first version, it only work
The find_or_create function calls alloc_page with a local gfp mask instead
of using page_cache_alloc. This means that the page allocation will not
obey cpuset memory spreading and page allocation will not properly use the
gfp flags in the address space. Highmem is not set correctly.
It turns out t
Suparna Bhattacharya wrote:
Could you send this out as a patch to ext2 codebase, so we can just look
at the changes for chunkfs ? That might also make it small enough
to inline your patch in email for review.
What kind of results are you planning to gather to evaluate/optimize this ?
Mainly
That's a horrible argument. Please do it properly, and let arch/ppc
die as it should. We shouldn't be adding anything to it anymore
anyway.
I understand your point, but we shouldn't trash existing bits either.
Why not? The things that haven't been ported over yet
obviously are unmaintained.
On Tue, Apr 24, 2007 at 12:46:37AM +0400, Oleg Nesterov wrote:
> On 04/23, Rafael J. Wysocki wrote:
> >
> > On Monday, 23 April 2007 14:35, Gautham R Shenoy wrote:
> > > > + if (!freezer_should_exempt(current)) {
> > > task_lock(k);
> > > > + /* We are freezable, so we
Please pull from:
master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6.git/
to receive the following updates:
drivers/pci/probe.c | 45 +
1 files changed, 13 insertions(+), 32 deletions(-)
commit 01abc2aa0f447bce2f6beb06dd0607ba0f01c5bb
Autho
On Monday, 23 April 2007 23:16, Gautham R Shenoy wrote:
> On Tue, Apr 24, 2007 at 12:46:37AM +0400, Oleg Nesterov wrote:
> > On 04/23, Rafael J. Wysocki wrote:
> > >
> > > On Monday, 23 April 2007 14:35, Gautham R Shenoy wrote:
> > > > > + if (!freezer_should_exempt(current)) {
> > > >
On Mon, 23 Apr 2007 14:11:57 -0700 (PDT)
Christoph Lameter <[EMAIL PROTECTED]> wrote:
> The find_or_create function calls alloc_page with a local gfp mask instead
> of using page_cache_alloc. This means that the page allocation will not
> obey cpuset memory spreading and page allocation will not p
On Mon, 23 Apr 2007, Andrew Morton wrote:
> > +static inline struct page *page_cache_alloc_mask(struct address_space *x,
> > + gfp_t gfp)
> > +{
> > + return __page_cache_alloc(mapping_gfp_mask(x) | gfp);
> > +}
>
> Usually we use the term "mask" to imply an AND function, not
The Jem team is pleased to announce the release of Kcli, an in-kernel command
line interface. Kcli is intended for a special class of embedded Linux
applications. The Linux kernel has become the defacto standard OS for embedded
applications. This means that Linux is getting bent in some ways tha
Hello
I'm testing a web server nginx for films sharing in my LAN. And I've got
some interesting results. When I tried to download film or another big
file via gigabit link, I've got sendfile block with nonblocking
socket. Strace log in attach. Some commens
#enabling nonblock on fd 3
20:51:
I can't report this problem from a new kernel, but i have the same
problem with the kernel 2.6.20.1-33x from f7-test3.
I managed to boot with these options:
linux noapic acpi=off pci=nomsi irqpoll
Here is my lspci -tv
-[:00]-+-00.0 ATI Technologies Inc Radeon Xpress 200 Host Bridge
This email lists some known regressions in Linus' tree compared to 2.6.20.
If you find your name in the Cc header, you are either submitter of one
of the bugs, maintainer of an affectected subsystem or driver, a patch
of you caused a breakage or I'm considering you in any other way
possibly involv
This email lists some known regressions in Linus' tree compared to 2.6.20.
If you find your name in the Cc header, you are either submitter of one
of the bugs, maintainer of an affectected subsystem or driver, a patch
of you caused a breakage or I'm considering you in any other way
possibly involv
This email lists some known regressions in Linus' tree compared to 2.6.20.
If you find your name in the Cc header, you are either submitter of one
of the bugs, maintainer of an affectected subsystem or driver, a patch
of you caused a breakage or I'm considering you in any other way
possibly involv
2007/4/23, Ingo Molnar <[EMAIL PROTECTED]>:
p->wait_runtime >>= 1;
p_to->wait_runtime += p->wait_runtime;
I have no problem with clients giving some credit to X,
I am more concerned with X giving half of its credit to
a single client, a quarter of its credit to a
On Mon, 23 Apr 2007, Jeremy Fitzhardinge wrote:
> I got this on resume; it looks like a Bluetooth and/or USB problem.
> PM: Removing info for No Bus:hci0
> BUG: sleeping function called from invalid context at net/core/sock.c:1523
> in_atomic():1, irqs_disabled():0
> 1 lock held by khubd/180:
> #
From: voron <[EMAIL PROTECTED]>
Date: Tue, 24 Apr 2007 00:13:27 +0300
> As I see, nonblocking mode is enabled - sendfile sends less than asked.
The socket is marked as non-blocking, but the disk I/O is not.
It's blocking on the disk I/O not the socket part of the operation.
-
To unsubscribe fr
Matt Ranon wrote:
The Jem team is pleased to announce the release of Kcli, an in-kernel command line interface. Kcli is intended for a special class of embedded Linux applications. The Linux kernel has become the defacto standard OS for embedded applications. This means that Linux is getting bent
Avishay Traeger wrote:
On Mon, 2007-04-23 at 02:16 +0530, Karuna sagar K wrote:
For some time I had been working on this file system test framework.
Now I have a implementation for the same and below is the explanation.
Any comments are welcome.
You may want to check out the paper "EXPLODE:
The small attached script does a nice job of showing animation glitches
in the glxgears animation. I have run one set of tests, and will have
several more tomorrow. I'm off to a poker game, and would like to let
people draw their own conclusions.
Based on just this script as load I would say r
I am not sure a binary attachment will go thru, I will move to the web
ste if not.
GL2.6.21-rc7-git6-CFSv5_nice0_jump
Description: Binary data
GL2.6.21-rc7-git6-CFSv5_nice0_nojump
Description: Binary data
GL2.6.21-rc7-git6-CFSv5_nice19_nojump
Description: Binary data
GL2.6.21-rc7-git6-CFSv
On Mon, Apr 23, 2007 at 11:48:47PM +0200, Adrian Bunk wrote:
> This email lists some known regressions in Linus' tree compared to 2.6.20.
>
> If you find your name in the Cc header, you are either submitter of one
> of the bugs, maintainer of an affectected subsystem or driver, a patch
> of you ca
On 04/22, Rafael J. Wysocki wrote:
>
> Move all of the freezer-related flags to a separate field in task_struct and
> introduce functions to operate them using set_bit() etc.
>
> [...snip...]
>
> --- linux-2.6.21-rc6-mm1.orig/kernel/fork.c 2007-04-22 19:37:42.0
> +0200
> +++ linux-2.6.2
Hi,
On Friday 20 April 2007, Sergei Shtylyov wrote:
> Hello, I wrote:
>
> Index: b/drivers/ide/pci/hpt366.c
> ===
> --- a/drivers/ide/pci/hpt366.c
> +++ b/drivers/ide/pci/hpt366.c
> @@ -513,43 +513,31 @@ sta
On Sunday 22 April 2007, Sergei Shtylyov wrote:
> Teach the driver's tuneproc() method to do PIO auto-runing properly since it
> treated 5 instead of 255 as auto-tune request, and also passed the mode limit
> of PIO5 to ide_get_best_pio_mode() despite supporting up to PIO4 only.
>
> While at it, a
On Sat, 2007-04-21 at 20:07 -0300, Guilherme M. Schroeder wrote:
> john stultz wrote:
> > On 4/19/07, guilherme <[EMAIL PROTECTED]> wrote:
> >> Hi,
> >>
> >> If i enable "High Resolution Timer Support", my machine stops here at
> >> boot:
> >>
> >> Clocksource tsc unstable (delta = -297340790165 n
On Mon, 23 Apr 2007, Andrew Morton wrote:
> There are few calls to page_cache_alloc(). Would it not be simpler to just
> add the additional argument to page_cache_alloc() (called "extra_gfp",
> please) and to update all callers? And to remove page_cache_alloc_cold()
> and replace all it callers
On Tuesday, 24 April 2007 00:23, Oleg Nesterov wrote:
> On 04/22, Rafael J. Wysocki wrote:
> >
> > Move all of the freezer-related flags to a separate field in task_struct and
> > introduce functions to operate them using set_bit() etc.
> >
> > [...snip...]
> >
> > --- linux-2.6.21-rc6-mm1.orig/ke
And the second fix (cleanup patch will follow)
Pagecache: find_or_create_page does not spread memory.
The find_or_create function calls alloc_page with the gfp_mask passed to it
which is derived from the mappings gfp mask. So the allocation flags are right
(assuming my bugfix to fs/buffer.c is ap
On Mon, 23 Apr 2007 15:33:07 -0700 (PDT)
Christoph Lameter <[EMAIL PROTECTED]> wrote:
> Grow dev page simply passes GFP_NOFS to find_or_create_page. This means the
> allocation of radix tree nodes is done with GFP_NOFS and the allocation
> of a new page is done using GFP_NOFS as well.
>
> The map
On Tue, Apr 24, 2007 at 12:40:17AM +0200, Rafael J. Wysocki wrote:
> On Tuesday, 24 April 2007 00:23, Oleg Nesterov wrote:
> > On 04/22, Rafael J. Wysocki wrote:
> > >
> > > Move all of the freezer-related flags to a separate field in task_struct
> > > and
> > > introduce functions to operate the
* Michael Gerdau <[EMAIL PROTECTED]> wrote:
> > i'm pleased to announce release -v4 of the CFS patchset. The patch
> > against v2.6.21-rc7 can be downloaded from:
> >
> > http://redhat.com/~mingo/cfs-scheduler/
>
> I can't get 2.6.21-rc7-CFS-v4 to boot. Immediately after selecting
> this
There are a series of open coded reimplementation of memclear_highpage_flush
all over the page cache code. Call memclear_highpage_flush in those locations.
Consolidates code and eases maintenance.
Signed-off-by: Christoph Lameter <[EMAIL PROTECTED]>
---
fs/buffer.c | 77 --
Linus Torvalds wrote:
> The "perfect" situation would be that when somebody goes to sleep, any
> extra points it had could be given to whoever it woke up last. Note that
> for something like X, it means that the points are 100% ephemeral: it gets
> points when a client sends it a request, but it
On Monday 23 April 2007 23:56:38 Jeremy Fitzhardinge wrote:
> Hi Andi,
>
> It applies to 2.6.21-rc7 + your patches + the last batch of pv_ops
> patches
I got most of those except for the broken sched_clock change.
> I posted.
How much testing outside Jeremylabs has it gotten? Some beta
testin
> As I see, nonblocking mode is enabled - sendfile sends less than asked.
> But 2G via single 30 seconds sendfile call - this is blocking call. How
> can I avoid that? I prefer sendfile as fastest way to send file
> content to network socket. The problem with sendfile block on
> nonblocking
On Mon, 2007-04-23 at 15:30 -0700, john stultz wrote:
> On Sat, 2007-04-21 at 20:07 -0300, Guilherme M. Schroeder wrote:
> > john stultz wrote:
> > > On 4/19/07, guilherme <[EMAIL PROTECTED]> wrote:
> > >> Hi,
> > >>
> > >> If i enable "High Resolution Timer Support", my machine stops here at
> >
On Tuesday, 24 April 2007 00:41, Gautham R Shenoy wrote:
> On Tue, Apr 24, 2007 at 12:40:17AM +0200, Rafael J. Wysocki wrote:
> > On Tuesday, 24 April 2007 00:23, Oleg Nesterov wrote:
> > > On 04/22, Rafael J. Wysocki wrote:
> > > >
> > > > Move all of the freezer-related flags to a separate field
On 04/24, Rafael J. Wysocki wrote:
>
> Should I clear it in dup_task_struct() or is there a better place?
I personally think we should do this in dup_task_struct(). In fact, I believe
it is better to replace the
*tsk = *orig;
with some helper (like setup_thread_stack() below), and that h
On Mon, Apr 23, 2007 at 06:52:16AM -0700, Eric Hopper wrote:
> Oh, two things really interest me about Reiser4. First, I despise
> having to care about how many tiny files I leave lying around when
> writing a program. Berkeley DB and its ilk are evil, evil programs that
> obscure data and make t
I'm honestly not sure how to try what you suggested to try, since I'm
nothing even remotely close to a kernel geek and it was over my head.
However, I'd gladly test anything that you think would be worth
testing, if you would please put it in way that I could understand,
such as "change line 'foo'
On Monday 23 April 2007 23:56:42 Jeremy Fitzhardinge wrote:
> The XEN config option enables the Xen paravirt_ops interface, which is
> installed when the kernel finds itself running under Xen.
>
> Xen is no longer a sub-architecture, so the X86_XEN subarch config
> option has gone.
>
> Xen is cur
On Tuesday, 24 April 2007 00:55, Oleg Nesterov wrote:
> On 04/24, Rafael J. Wysocki wrote:
> >
> > Should I clear it in dup_task_struct() or is there a better place?
>
> I personally think we should do this in dup_task_struct(). In fact, I believe
> it is better to replace the
>
> *tsk = *o
> On Mon, Apr 23, 2007 at 04:55:05PM +0100, Alan Cox wrote:
> > On Mon, 23 Apr 2007 11:36:30 -0400
> > Dave Jones <[EMAIL PROTECTED]> wrote:
> >
> > > If the chip locks up, we get into a long polling loop,
> > > where the softlockup detector kicks in.
> > > See https://bugzilla.redhat.com/bug
The XEN config option enables the Xen paravirt_ops interface, which is
installed when the kernel finds itself running under Xen.
Xen is no longer a sub-architecture, so the X86_XEN subarch config
option has gone.
Xen is currently incompatible with PREEMPT, but this is fixed up later
in the series
Disable interrupts between allocating a multicall entry and actually
issuing it, to prevent an interrupt from coming in, allocating and
initializing further multicall entries, and then issuing them all,
including the partially completed one.
Signed-off-by: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
Implement xen_sched_clock, which returns the number of ns the current
vcpu has been actually in the running state (vs blocked,
runnable-but-not-running, or offline) since boot.
Signed-off-by: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
Cc: john stultz <[EMAIL PROTECTED]>
---
arch/i386/xen/enlighten.
Add a new mm function apply_to_page_range() which applies a given
function to every pte in a given virtual address range in a given mm
structure. This is a generic alternative to cut-and-pasting the Linux
idiomatic pagetable walking code in every place that a sequence of
PTEs must be accessed.
Alt
Move things around a bit to match xen-unstable netfront.
Signed-off-by: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
---
drivers/net/xen-netfront.c | 36 +---
1 file changed, 17 insertions(+), 19 deletions(-)
=
Make the appropriate hypercalls to halt and reboot the virtual machine.
Signed-off-by: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
---
arch/i386/xen/enlighten.c | 43 +++
arch/i386/xen/smp.c |4 +---
2 files changed, 44 insertions(+), 3 deletions(-
The network device frontend driver allows the kernel to access network
devices exported exported by a virtual machine containing a physical
network device driver.
Signed-off-by: Ian Pratt <[EMAIL PROTECTED]>
Signed-off-by: Christian Limpach <[EMAIL PROTECTED]>
Signed-off-by: Chris Wright <[EMAIL P
Xen has a notion of pinned pagetables, which are pagetables that
remain read-only to the guest and are validated by the hypervisor.
This makes context switches much cheaper, because the hypervisor
doesn't need to revalidate the pagetable each time.
This patch adds a PG_pinned flag for pagetable pa
Andi Kleen wrote:
> On Monday 23 April 2007 23:56:38 Jeremy Fitzhardinge wrote:
>
>> Hi Andi,
>>
>> It applies to 2.6.21-rc7 + your patches + the last batch of pv_ops
>> patches
>>
>
> I got most of those except for the broken sched_clock change.
>
Er, we had a bit of back-and-forward
Add Xen 'grant table' driver which allows granting of access to
selected local memory pages by other virtual machines and,
symmetrically, the mapping of remote memory pages which other virtual
machines have granted access to.
This driver is a prerequisite for many of the Xen virtual device
drivers
The block device frontend driver allows the kernel to access block
devices exported exported by a virtual machine containing a physical
block device driver.
Signed-off-by: Ian Pratt <[EMAIL PROTECTED]>
Signed-off-by: Christian Limpach <[EMAIL PROTECTED]>
Signed-off-by: Chris Wright <[EMAIL PROTECT
This is a fairly straightforward Xen implementation of smp_ops. One
thing this must to is carefully set up all the various sibling and
core maps so that the smp scheduler setup works properly (the setup is
very simple, since vcpus don't have any siblings or multiple cores).
Xen has its own IPI me
Netfront's use of nh.raw and h.raw for storing page+offset is a bit
hinky, and it breaks with upcoming network stack updates which reduce
these fields to sub-pointer sizes. Fortunately, skb offers the "cb"
field specifically for stashing this kind of info, so use it.
Signed-off-by: Jeremy Fitzhar
Andi Kleen wrote:
> On Monday 23 April 2007 23:56:42 Jeremy Fitzhardinge wrote:
>
>> The XEN config option enables the Xen paravirt_ops interface, which is
>> installed when the kernel finds itself running under Xen.
>>
>> Xen is no longer a sub-architecture, so the X86_XEN subarch config
>> opt
Implement a Xen back-end for hvc console.
From: Gerd Hoffmann <[EMAIL PROTECTED]>
Signed-off-by: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
---
arch/i386/xen/Kconfig |1
arch/i386/xen/events.c|3 -
drivers/Makefile |3 +
drivers/xen/Makefile |1
drivers/xen/h
netfront contains two locking problems found by lockdep:
1. rx_lock is a normal spinlock, and tx_lock is an irq spinlock. This
means that in normal use, tx_lock may be taken by an interrupt routine
while rx_lock is held. However, netif_disconnect_backend takes them
in the order tx_lock-
This patch uses the lazy-mmu hooks to batch mmu operations where
possible. This is primarily useful for batching operations applied to
active pagetables, which happens during mprotect, munmap, mremap and
the like (mmap does not do bulk pagetable operations, so it isn't
helped).
Signed-off-by: Jer
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