On Mon, Apr 16, 2007 at 05:03:49AM +0200, Nick Piggin wrote:
I'd prefer if we kept a single CPU scheduler in mainline, because I
think that simplifies analysis and focuses testing.
I think you'll find something like 80-90% of the testing will be done
on the default choice, even if other choices
[cc:ed to netdev]
On Sun, Apr 15, 2007 at 10:45:37PM -0700, Mike Mattie wrote:
Hello,
netconsole is hanging my box during IDE init.
I am running 2.6.20.7, config is attached from /proc
Without using netconsole the kernel boots fine. I am writing this message
from it.
When I do
On Tue, Apr 17, 2007 at 05:31:20AM +0200, Nick Piggin wrote:
On Mon, Apr 16, 2007 at 09:28:24AM -0500, Matt Mackall wrote:
On Mon, Apr 16, 2007 at 05:03:49AM +0200, Nick Piggin wrote:
I'd prefer if we kept a single CPU scheduler in mainline, because I
think that simplifies analysis
Both my T30 and R51 aren't waking up when I open the lid any more. I
have to hold down the power button for a moment. On my R51, I see this:
$ cat /proc/acpi/wakeup
Device S-state Status Sysfs node
LID S3*enabled
SLPB S3*enabled
PCI0 S3 disabled no-bus:pci:00
On Wed, Apr 11, 2007 at 04:35:44PM +1000, Nick Piggin wrote:
Matt Mackall wrote:
Move the page walker code to lib/
This lets it get shared outside of proc/ and linked in only when
needed.
Still should go into mm/
If it had, you might have also noticed your pagetable walking code
On Wed, Apr 04, 2007 at 11:52:57PM -0700, Jeremy Fitzhardinge wrote:
Matt Mackall wrote:
+/*
+ * Scan a region of virtual memory, filling in page tables as necessary
+ * and calling a provided function on each leaf page table.
+ */
But I'm not sure what the use case
On Tue, Apr 17, 2007 at 09:01:55AM +0200, Nick Piggin wrote:
On Mon, Apr 16, 2007 at 11:26:21PM -0700, William Lee Irwin III wrote:
On Mon, Apr 16, 2007 at 11:09:55PM -0700, William Lee Irwin III wrote:
All things are not equal; they all have different properties. I like
On Tue, Apr 17,
On Tue, Apr 17, 2007 at 11:24:22AM +0200, Ingo Molnar wrote:
* William Lee Irwin III [EMAIL PROTECTED] wrote:
[...] Also rest assured that the tone of the critique is not hostile,
and wasn't meant to sound that way.
ok :) (And i guess i was too touchy - sorry about coming out
at 05:08:09PM -0500, Matt Mackall wrote:
How's this:
If you're running two identical CPU hog tasks A and B differing only by nice
level (Anice, Bnice), the ratio cputime(A)/cputime(B) should be a
constant f(Anice - Bnice).
Other definitions make things hard to analyze and probably not
well
others start saying they want something different and agree.
On Tue, Apr 17, 2007 at 05:39:09PM -0500, Matt Mackall wrote:
Good. This has a couple nice mathematical properties, including
bounded unfairness which I mentioned earlier. What base are you
looking at?
I'm working
that changed? But if SLAB is using the other define now, I'm
happy to switch.
Signed-off-by: Christoph Lameter [EMAIL PROTECTED]
Signed-off-by: Matt Mackall [EMAIL PROTECTED]
--
Mathematics is the supreme nostalgia of our time.
-
To unsubscribe from this list: send the line unsubscribe linux-kernel
On Wed, Apr 18, 2007 at 09:23:42AM +1000, Peter Williams wrote:
Matt Mackall wrote:
On Tue, Apr 17, 2007 at 09:01:55AM +0200, Nick Piggin wrote:
On Mon, Apr 16, 2007 at 11:26:21PM -0700, William Lee Irwin III wrote:
On Mon, Apr 16, 2007 at 11:09:55PM -0700, William Lee Irwin III wrote:
All
On Wed, Apr 18, 2007 at 05:15:11AM +0200, Nick Piggin wrote:
On Tue, Apr 17, 2007 at 04:39:54PM -0500, Matt Mackall wrote:
On Tue, Apr 17, 2007 at 09:01:55AM +0200, Nick Piggin wrote:
On Mon, Apr 16, 2007 at 11:26:21PM -0700, William Lee Irwin III wrote:
On Mon, Apr 16, 2007 at 11:09
On Wed, Apr 18, 2007 at 07:00:24AM +0200, Nick Piggin wrote:
It's also not yet clear that a scheduler can't be taught to do the
right thing with X without fiddling with nice levels.
Being fair doesn't prevent that. Implicit unfairness is wrong though,
because it will bite people.
What's
On Wed, Apr 18, 2007 at 08:37:11AM +0200, Nick Piggin wrote:
I don't know how that supports your argument for unfairness,
I never had such an argument. I like fairness.
My argument is that -you- don't have an argument for making fairness a
-requirement-.
processes are special only because
On Wed, Apr 18, 2007 at 07:48:21AM -0700, Linus Torvalds wrote:
And fairness by euid is probably a hell of a lot easier to do than
trying to figure out the wakeup matrix.
For the record, you actually don't need to track a whole NxN matrix
(or do the implied O(n**3) matrix inversion!) to get to
On Thu, Apr 19, 2007 at 12:12:29PM -0700, Dave Hansen wrote:
On Fri, 2007-04-06 at 17:03 -0500, Matt Mackall wrote:
+static int pagemap_pte_range(pmd_t *pmd, unsigned long addr, unsigned
long end,
+void *private)
+{
+ struct pagemapread *pm = private
On Thu, Apr 19, 2007 at 12:44:57PM -0700, Jeremy Fitzhardinge wrote:
Matt Mackall wrote:
I think adding a flags field and an allocate flag to my callback
struct would be sufficient here.
Yes, probably.
What about something that wants to shatter superpages?
Haven't thought a huge
On Thu, Apr 19, 2007 at 12:06:38PM -0700, Dave Hansen wrote:
On Fri, 2007-04-06 at 17:03 -0500, Matt Mackall wrote:
+static ssize_t kpagemap_read(struct file *file, char __user *buf,
+size_t count, loff_t *ppos)
+{
...
+ for (; i 2 * chunk
On Thu, Apr 19, 2007 at 02:37:53PM -0700, Jeremy Fitzhardinge wrote:
Matt Mackall wrote:
Haven't thought a huge amount about that. Perhaps it's best done with
the level 3 callback?
Level 2, I think, assuming you count the pte pages as level 1. I think
it can be dealt with, so long
On Fri, Apr 20, 2007 at 11:15:26AM -0700, Andrew Morton wrote:
On Fri, 20 Apr 2007 18:51:13 +0900
Keiichi KII [EMAIL PROTECTED] wrote:
I started to do some cleanups and fixups here, but abandoned it when it
was
all getting a bit large.
Here are some fixes against this patch:
On Tue, Apr 24, 2007 at 08:50:20AM -0700, Ray Lee wrote:
Firstly, lots of clients in your list are remote. X usually isn't.
They really aren't, unless you happen to work somewhere that can afford
to dedicate a box to a db, which suddenly makes the scheduler a dull
topic.
For example, I
On Fri, Apr 20, 2007 at 12:10:43PM -0700, Christoph Lameter wrote:
On Fri, 20 Apr 2007, Dave Kleikamp wrote:
On Fri, 2007-04-20 at 12:05 +0100, Mel Gorman wrote:
comments about missing page_cache_size() covered elsewhere. However, I
note that Dave Kleikamp might be interested in this
First off, let me say that I think your approach has great promise,
but I'm afraid it doesn't work so well here yet.
Box is an R51 Thinkpad, 1.7GHz Pentium M. I'm using a make -j 5 as a
test load.
With 2.6.21-rc2-mm2, I get slightly sluggish response for opening new
terminals, scrolling in
On Fri, Mar 09, 2007 at 05:28:03PM +1100, Con Kolivas wrote:
On Friday 09 March 2007 16:39, Matt Mackall wrote:
First off, let me say that I think your approach has great promise,
but I'm afraid it doesn't work so well here yet.
Box is an R51 Thinkpad, 1.7GHz Pentium M. I'm using a make
On Fri, Mar 09, 2007 at 01:53:58AM -0600, Matt Mackall wrote:
On Fri, Mar 09, 2007 at 05:28:03PM +1100, Con Kolivas wrote:
On Friday 09 March 2007 16:39, Matt Mackall wrote:
First off, let me say that I think your approach has great promise,
but I'm afraid it doesn't work so well here yet
On Fri, Mar 09, 2007 at 07:39:05PM +1100, Con Kolivas wrote:
On Friday 09 March 2007 19:20, Matt Mackall wrote:
And I've just rebooted with NO_HZ and things are greatly improved. At
idle, Beryl effects are silky smooth (possibly better than stock) and
shows less load. Under 'make', Beryl
On Fri, Mar 09, 2007 at 07:39:05PM +1100, Con Kolivas wrote:
On Friday 09 March 2007 19:20, Matt Mackall wrote:
And I've just rebooted with NO_HZ and things are greatly improved. At
idle, Beryl effects are silky smooth (possibly better than stock) and
shows less load. Under 'make', Beryl
On Sat, Mar 10, 2007 at 07:26:15AM +1100, Con Kolivas wrote:
How odd. I would have thought that if an interaction was to occur it would
have been without the new feature. Clearly what you describe without NO_HZ
is not the expected behaviour with RSDL. I wonder what went wrong. Are you
on
On Sat, Mar 10, 2007 at 07:15:38AM +1100, Con Kolivas wrote:
How odd. I would have thought that if an interaction was to occur it would
have been without the new feature. Clearly what you describe without NO_HZ is
not the expected behaviour with RSDL. I wonder what went wrong. Are you on
On Fri, Mar 09, 2007 at 02:46:24PM -0600, Matt Mackall wrote:
A priori, this load should be manageable by RSDL as the interactive
loads are all pretty small. So I wrote a little Python script that
basically continuously memcpys some 16MB chunks of memory:
#!/usr/bin/python
a = a * 16 * 1024
On Sat, Mar 10, 2007 at 08:19:18AM +1100, Con Kolivas wrote:
On Saturday 10 March 2007 08:07, Con Kolivas wrote:
On Saturday 10 March 2007 07:46, Matt Mackall wrote:
My suspicion is the problem lies in giving too much quanta to
newly-started processes.
Ah that's some nice detective
On Sat, Mar 10, 2007 at 09:12:07AM +1100, Con Kolivas wrote:
On Saturday 10 March 2007 08:57, Willy Tarreau wrote:
On Fri, Mar 09, 2007 at 03:39:59PM -0600, Matt Mackall wrote:
On Sat, Mar 10, 2007 at 08:19:18AM +1100, Con Kolivas wrote:
On Saturday 10 March 2007 08:07, Con Kolivas wrote
On Sat, Mar 10, 2007 at 09:18:05AM +1100, Con Kolivas wrote:
On Saturday 10 March 2007 08:57, Con Kolivas wrote:
On Saturday 10 March 2007 08:39, Matt Mackall wrote:
On Sat, Mar 10, 2007 at 08:19:18AM +1100, Con Kolivas wrote:
On Saturday 10 March 2007 08:07, Con Kolivas wrote
On Sat, Mar 10, 2007 at 10:02:37AM +1100, Con Kolivas wrote:
On Saturday 10 March 2007 09:29, Matt Mackall wrote:
On Sat, Mar 10, 2007 at 09:18:05AM +1100, Con Kolivas wrote:
On Saturday 10 March 2007 08:57, Con Kolivas wrote:
On Saturday 10 March 2007 08:39, Matt Mackall wrote:
So
On Sat, Mar 10, 2007 at 11:34:26AM +1100, Con Kolivas wrote:
On Saturday 10 March 2007 09:29, Matt Mackall wrote:
On Sat, Mar 10, 2007 at 09:18:05AM +1100, Con Kolivas wrote:
On Saturday 10 March 2007 08:57, Con Kolivas wrote:
On Saturday 10 March 2007 08:39, Matt Mackall wrote
On Sat, Mar 10, 2007 at 12:02:25PM +1100, Con Kolivas wrote:
On Saturday 10 March 2007 09:12, Con Kolivas wrote:
On Saturday 10 March 2007 08:57, Willy Tarreau wrote:
On Fri, Mar 09, 2007 at 03:39:59PM -0600, Matt Mackall wrote:
On Sat, Mar 10, 2007 at 08:19:18AM +1100, Con Kolivas wrote
On Sat, Mar 10, 2007 at 12:28:38PM +1100, Con Kolivas wrote:
On Saturday 10 March 2007 11:49, Matt Mackall wrote:
On Sat, Mar 10, 2007 at 11:34:26AM +1100, Con Kolivas wrote:
Ok, so some of the basics then. Can you please give me the output of 'top
-b' running for a few seconds during
On Sat, Mar 10, 2007 at 01:20:22PM +1100, Con Kolivas wrote:
Progress at last! And without any patches! Well those look very reasonable to
me. Especially since -j5 is a worst case scenario.
Well that's with a noyield patch and your sched_tick fix.
But would you say it's still _adequate_ with
On Fri, Mar 09, 2007 at 09:42:43PM +0100, Francois Romieu wrote:
Simon Arlott [EMAIL PROTECTED] :
When I unplug the cable the system just stops responding to anything,
at all. No message is printed to the console when the cable is plugged
back in.
rtl8139_interrupt (spin_lock(tp-lock))
On Sat, Mar 10, 2007 at 04:21:01PM -0800, Andrew Morton wrote:
On Sat, 10 Mar 2007 10:33:41 -0800 Kees Cook [EMAIL PROTECTED] wrote:
Here's another revision, with both the can ptrace and the global /proc
knob;
We'd be needing a changelog for that.
Please update the procfs
I've tested -mm2 against -mm2+noyield and -mm2+rsdl+noyield. The
noyield patch simply makes the sched_yield syscall return immediately.
Xorg and all tests are run at nice 0.
Loads:
memload: constant memcpy of 16MB buffer
execload: constant re-exec of a trivial shell script
forkload: constant
On Sun, Mar 11, 2007 at 01:28:22PM +1100, Con Kolivas wrote:
make -j 5 ccache
berylok good awful
galeon goodgood bad
mp3 goodgood bad
terminal goodgood bad/ok
mousegoodgood bad/ok
On Sat, Mar 10, 2007 at 10:01:32PM -0600, Matt Mackall wrote:
On Sun, Mar 11, 2007 at 01:28:22PM +1100, Con Kolivas wrote:
Ok I don't think there's any actual accounting problem here per se
(although I did just recently post a bugfix for rsdl however I think
that's unrelated). What I think
On Tue, Mar 13, 2007 at 10:33:18AM +0100, Mike Galbraith wrote:
On Tue, 2007-03-13 at 09:18 +0100, Ingo Molnar wrote:
Con, we want RSDL to /improve/ interactivity. Having new scheduler
interactivity logic that behaves /worse/ in the presence of CPU hogs,
which CPU hogs are even reniced
On Tue, Mar 13, 2007 at 12:08:28AM -0400, Dave Jones wrote:
I spent considerable time over the last day or so bisecting to
find out why an X60 stopped resuming somewhen between 2.6.20 and current -git.
(Total lockup, black screen of death).
The bisect log looked like this.
...
Any ideas
On Tue, Mar 13, 2007 at 10:30:10AM -0700, Jeremy Fitzhardinge wrote:
Nick Piggin wrote:
However we still have to visit those to-be-unmapped parts of the page
table,
to find the pages and free them. So we still at least need to bring it
into
cache for the read... at which point, the
On Tue, Mar 13, 2007 at 01:17:00PM -0700, Jeremy Fitzhardinge wrote:
Matt Mackall wrote:
On Tue, Mar 13, 2007 at 10:30:10AM -0700, Jeremy Fitzhardinge wrote:
Nick Piggin wrote:
However we still have to visit those to-be-unmapped parts of the page
table,
to find the pages
On Tue, Mar 13, 2007 at 02:07:22PM -0700, David Miller wrote:
From: Matt Mackall [EMAIL PROTECTED]
Date: Tue, 13 Mar 2007 15:21:25 -0500
Because the fan-out is large, the bulk of the work is bringing the last
layer of the tree into cache to find all the pages in the address
space
On Tue, Mar 13, 2007 at 02:05:11PM -0700, Jeremy Fitzhardinge wrote:
Andi Kleen wrote:
It depends -- under heavy network load you can spend a long time
just processing interrupts.
Well, in that case you probably don't want to charge them to the process
which happens to be running at the
On Wed, Mar 14, 2007 at 05:19:34PM +0200, Artem Bityutskiy wrote:
Hello,
This patch-set contains UBI, which stands for Unsorted Block Images. This
is closely related to the memory technology devices Linux subsystem (MTD),
so this new piece of software is from drivers/mtd/ubi.
In short,
On Sun, Mar 18, 2007 at 06:49:39PM +0200, Artem Bityutskiy wrote:
On Sun, 2007-03-18 at 11:27 -0500, Matt Mackall wrote:
Forgive my ignorance, but why did you not implement the two features
above as device mapper layers instead? A device mapper can arbitrarily
transform I/O addresses
On Sun, Mar 18, 2007 at 03:31:50PM -0500, Josh Boyer wrote:
On Sun, Mar 18, 2007 at 02:18:12PM -0500, Matt Mackall wrote:
I'm well aware of all that. I wrote a NAND driver just last month.
Let's consider this table:
HARD drives MTD device
Consists of sectors
On Mon, Mar 19, 2007 at 01:16:28PM -0500, Josh Boyer wrote:
On Mon, 2007-03-19 at 12:08 -0500, Matt Mackall wrote:
If the end goal is to end up with something that looks like a block
device (which seems to be implied by adding transparent wear leveling
Nope, not the end goal
On Mon, Mar 19, 2007 at 08:03:30PM +0100, Thomas Gleixner wrote:
Matt,
On Mon, 2007-03-19 at 12:08 -0500, Matt Mackall wrote:
On Sun, Mar 18, 2007 at 03:31:50PM -0500, Josh Boyer wrote:
On Sun, Mar 18, 2007 at 02:18:12PM -0500, Matt Mackall wrote:
I'm well aware of all that. I
On Mon, Mar 19, 2007 at 10:08:03AM -0700, Christoph Lameter wrote:
On Mon, 19 Mar 2007, Pekka J Enberg wrote:
This changes kmem_cache_free() to deal with NULL objects passed to it. The
current behavior is inconsistent with kfree() so there are callers
passing NULL to kmem_cache_free().
On Mon, Mar 19, 2007 at 11:06:33PM +0200, Artem Bityutskiy wrote:
On Mon, 2007-03-19 at 14:54 -0500, Matt Mackall wrote:
The issue is 14000 lines of patch to make a parallel subsystem.
Parallel system exists since very long. One is
flash-SW_or_HW_FTL-all_blkdev_stuff. The other is MTD-JFFS2
On Mon, Mar 19, 2007 at 02:16:01PM -0700, Christoph Lameter wrote:
On Mon, 19 Mar 2007, Matt Mackall wrote:
I think this sort of thing should work:
a = kmalloc(...)
b = kmem_cache_alloc(..)
c = allocate_some_id(...)
if (!a || !b || !c) {
free_some_id(c)
kmem_cache_free(c
On Mon, Mar 19, 2007 at 02:41:00PM -0700, Andrew Morton wrote:
On Mon, 19 Mar 2007 23:25:36 +0200 (EET)
Pekka Enberg [EMAIL PROTECTED] wrote:
On 3/19/2007, Andrew Morton [EMAIL PROTECTED] wrote:
Would prefer to do:
static inline void kmem_cache_free_if_not_null(struct kmem_cache
On Mon, Mar 19, 2007 at 10:05:29PM +0100, Thomas Gleixner wrote:
On Mon, 2007-03-19 at 14:54 -0500, Matt Mackall wrote:
(UBI also has static volumes which LVM doesn't but that is an aside.)
If a static volume is simply a non-dynamic volume, then device mapper
can do that too
On Mon, Mar 19, 2007 at 06:22:15PM +0200, Tasos Parisinos wrote:
+static inline _i32 rsa_max(_i32 x, _i32 y)
+{
+return (x y)? x: y;
+}
We've got a max() already. Use tabs.
+
+/*
+ * Module loading callback function
+ *
+ * Returns 0 on success or a negative value indicating error
On Tue, Mar 20, 2007 at 01:42:46AM +0100, Thomas Gleixner wrote:
On Mon, 2007-03-19 at 17:32 -0500, Matt Mackall wrote:
If a static volume is simply a non-dynamic volume, then device mapper
can do that too. And countless other things. Which is not an aside.
UBI growing to do all
On Tue, Mar 20, 2007 at 04:44:01PM +0200, Tasos Parisinos wrote:
+/* Pre-allocate some auxilliary mpis */
+rsa_echo(Preallocating %lu bytes for auxilliary operands\n,
+ RSA_AUX_SIZE * RSA_AUX_COUNT * sizeof(_u32));
And printk.
i made such a printk wrapper not to mess with
On Tue, Mar 20, 2007 at 06:08:10PM -0400, Rik van Riel wrote:
- Active: %8lu kB\n
- Inactive: %8lu kB\n
...
+ Active(anon): %8lu kB\n
+ Inactive(anon): %8lu kB\n
+ Active(file): %8lu kB\n
+ Inactive(file):
init_netconsole(void)
+static int __init init_netconsole(void)
{
int err;
This is fine.
Acked-by: Matt Mackall [EMAIL PROTECTED]
--
Mathematics is the supreme nostalgia of our time.
-
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED
On Tue, Mar 20, 2007 at 09:31:58AM -0700, Jeremy Fitzhardinge wrote:
Linus Torvalds wrote:
On Tue, 20 Mar 2007, Eric W. Biederman wrote:
If that is the case. In the normal kernel what would
the the oops, we got an interrupt code do?
I assume it would leave interrupts disabled when
On Tue, Mar 20, 2007 at 03:08:19PM -0800, Zachary Amsden wrote:
Matt Mackall wrote:
I don't know that you need an xchg there. If you're still on the same
CPU, it should all be nice and causal even across an interrupt handler.
So it could be:
pda.intr_mask = 0; /* intr_pending can't get
With the latest -mm, I'm now getting this:
Mar 21 15:06:52 cinder kernel: ipw2200: Detected Intel PRO/Wireless
2200BG Network Connection
Mar 21 15:06:52 cinder kernel: firmware_loading_store: unexpected
value (0)
Mar 21 15:06:52 cinder kernel: ipw2200: ipw2200-bss.fw
request_firmware failed:
On Wed, Mar 21, 2007 at 03:26:59PM -0700, William Lee Irwin III wrote:
On Wed, 21 Mar 2007 14:43:48 CDT, Adam Litke said:
The main reason I am advocating a set of pagetable_operations is to
enable the development of a new hugetlb interface.
On Wed, Mar 21, 2007 at 03:51:31PM -0400, [EMAIL
.
That would've allowed rm -rf fs/hugetlbfs/ outright. A compatibility
wrapper for expand-on-mmap() around ramfs once ramfs acquires the
necessary functionality is now the exit strategy.
On Wed, Mar 21, 2007 at 05:53:48PM -0500, Matt Mackall wrote:
Can you describe what ramfs needs here in a bit more
On Wed, Mar 21, 2007 at 11:39:17PM -0800, Andrew Morton wrote:
On Wed, 21 Mar 2007 15:22:25 -0500 Matt Mackall [EMAIL PROTECTED] wrote:
With the latest -mm, I'm now getting this:
Mar 21 15:06:52 cinder kernel: ipw2200: Detected Intel PRO/Wireless
2200BG Network Connection
Mar 21 15
On Sun, Mar 25, 2007 at 02:12:32PM +0200, Peter Zijlstra wrote:
On Sat, 2007-03-24 at 23:09 +0100, Miklos Szeredi wrote:
From: Miklos Szeredi [EMAIL PROTECTED]
Dirty page accounting/limiting doesn't work for nonlinear mappings, so
for non-ram backed filesystems emulate with linear
On Mon, Mar 26, 2007 at 02:00:36PM -0700, Andrew Morton wrote:
On Sun, 25 Mar 2007 23:10:21 +0200
Miklos Szeredi [EMAIL PROTECTED] wrote:
This patch makes writing to shared memory mappings update st_ctime and
st_mtime as defined by SUSv3:
Boy this is complicated.
Is there a simpler
On Fri, Apr 06, 2007 at 02:28:13PM +0530, Milind Arun Choudhary wrote:
[EMAIL PROTECTED]:~/src/linux egrep -rin #define.*NAME_?OFFSET .
./arch/alpha/kernel/osf_sys.c:95:#define NAME_OFFSEToffsetof (struct
osf_dirent, d_name)
./arch/mips/kernel/sysirix.c:1738:#define NAME_OFFSET32(de)
This patch series introduces /proc/pid/pagemap and /proc/kpagemap,
which allow detailed run-time examination of process memory usage at a
page granularity.
The first several patches whip the page-walking code introduced for
/proc/pid/smaps and clear_refs into a more generic form, the next
couple
Uninline some functions in the page walker
Signed-off-by: Matt Mackall [EMAIL PROTECTED]
Index: mm/fs/proc/task_mmu.c
===
--- mm.orig/fs/proc/task_mmu.c 2007-03-24 21:33:42.0 -0500
+++ mm/fs/proc/task_mmu.c 2007-03-24
Add /proc/kpagemap interface
This makes physical page flags and counts available to userspace.
Together with /proc/pid/pagemap and /proc/pid/clear_refs, this can be
used to measure memory usage on a per-page basis.
Signed-off-by: Matt Mackall [EMAIL PROTECTED]
Index: mm/fs/proc/proc_misc.c
Add /proc/pid/pagemap interface
This interface provides a mapping for each page in an address space to
its physical page frame number, allowing precise determination of what
pages are mapped and what pages are shared between processes.
Signed-off-by: Matt Mackall [EMAIL PROTECTED]
Index: mm/fs
Make /proc/pid/clear_refs option under CONFIG_EMBEDDED
This interface is primarily useful for doing memory profiling and not
much use on deployed embedded boxes. Make it optional. Together with
/proc/pid/smaps, this save a few K.
Signed-off-by: Matt Mackall [EMAIL PROTECTED]
Index: mm/fs/proc
Move clear_refs code to task_mmu.c
This puts all the clear_refs code where it belongs and probably lets
things compile on MMU-less systems as well.
Signed-off-by: Matt Mackall [EMAIL PROTECTED]
Index: mm/fs/proc/base.c
Simplify interdependence of /proc/pid/maps and smaps
This pulls the shared map display code out of show_map and puts it in
show_smap where it belongs.
Signed-off-by: Matt Mackall [EMAIL PROTECTED]
Index: mm/fs/proc/task_mmu.c
Make /proc/pid/smaps optional under CONFIG_EMBEDDED
This interface is primarily useful for doing memory profiling and not
much use on deployed embedded boxes. Make it optional. Together with
/proc/pid/clear_refs, this save a few K.
Signed-off-by: Matt Mackall [EMAIL PROTECTED]
Index: mm/fs/proc
Remove vma from args in the page walker
This makes the walker more generic.
Signed-off-by: Matt Mackall [EMAIL PROTECTED]
Index: mm/fs/proc/task_mmu.c
===
--- mm.orig/fs/proc/task_mmu.c 2007-03-24 21:33:50.0 -0500
+++ mm
Eliminate the pmd_walker struct in the page walker
This slightly simplifies things for the next few cleanups.
Signed-off-by: Matt Mackall [EMAIL PROTECTED]
Index: mm/fs/proc/task_mmu.c
===
--- mm.orig/fs/proc/task_mmu.c 2007-03-24
.
Signed-off-by: Matt Mackall [EMAIL PROTECTED]
Index: mm/fs/proc/task_mmu.c
===
--- mm.orig/fs/proc/task_mmu.c 2007-03-24 21:33:58.0 -0500
+++ mm/fs/proc/task_mmu.c 2007-03-24 21:34:07.0 -0500
@@ -280,10 +280,35
Move the page walker code to lib/
This lets it get shared outside of proc/ and linked in only when
needed.
Signed-off-by: Matt Mackall [EMAIL PROTECTED]
Index: mm/fs/proc/task_mmu.c
===
--- mm.orig/fs/proc/task_mmu.c 2007-03-27 22
Regroup task_mmu by interface
Reorder source so that all the code and data for each interface is
together.
Signed-off-by: Matt Mackall [EMAIL PROTECTED]
Index: mm/fs/proc/task_mmu.c
===
--- mm.orig/fs/proc/task_mmu.c 2007-03-28 00
Propagate errors from callback in page walker
Signed-off-by: Matt Mackall [EMAIL PROTECTED]
Index: mm/fs/proc/task_mmu.c
===
--- mm.orig/fs/proc/task_mmu.c 2007-03-24 21:33:52.0 -0500
+++ mm/fs/proc/task_mmu.c 2007-03
On Fri, Apr 06, 2007 at 11:55:10PM -0700, Andrew Morton wrote:
On Fri, 06 Apr 2007 17:03:13 -0500 Matt Mackall [EMAIL PROTECTED] wrote:
Add /proc/pid/pagemap interface
This interface provides a mapping for each page in an address space to
its physical page frame number, allowing
On Mon, Apr 09, 2007 at 10:08:47PM +0900, Akinobu Mita wrote:
kmem_cache_create() for slob doesn't handle SLAB_PANIC.
Cc: Matt Mackall [EMAIL PROTECTED]
Signed-off-by: Akinobu Mita [EMAIL PROTECTED]
---
mm/slob.c |3 +++
1 file changed, 3 insertions(+)
Index: 2.6-mm/mm/slob.c
On Mon, Apr 09, 2007 at 12:25:54PM +0400, Alexey Dobriyan wrote:
After
cat /proc/self/pagemap
BUG: sleeping function called from invalid context at
include/asm/uaccess.h:453
in_atomic():1, irqs_disabled():0
1 lock held by cat/14183:
#0: (mm-mmap_sem){}, at: [c017d17b]
On Mon, Apr 09, 2007 at 12:25:54PM +0400, Alexey Dobriyan wrote:
After
cat /proc/self/pagemap
BUG: sleeping function called from invalid context at
include/asm/uaccess.h:453
in_atomic():1, irqs_disabled():0
1 lock held by cat/14183:
#0: (mm-mmap_sem){}, at: [c017d17b]
On Tue, Apr 10, 2007 at 03:05:56AM -0400, Jeff Garzik wrote:
Andrew Morton wrote:
: root 3 0.0 0.0 0 0 ?S18:51 0:00
[watchdog/0]
That's the softlockup detector. Confusingly named to look like a, err,
watchdog. Could probably use keventd.
I would think
On Tue, Apr 10, 2007 at 02:08:26PM +0200, Jörn Engel wrote:
On Tue, 10 April 2007 07:27:18 -0400, Theodore Tso wrote:
I suppose what you could do is to read in the journal, and use it to
create an remapping table so that when you want to read block #5126,
and block number 5126 is in the
in pagemap to
avoid calling copy_to_user while preemption is disabled.
Tested on x86 with HIGHPTE with DEBUG_SPINLOCK_SLEEP and
PROVE_LOCKING.
Signed-off-by: Matt Mackall [EMAIL PROTECTED]
Index: mm/fs/proc/task_mmu.c
===
--- mm.orig
the needlessly global truct proc_kpagemap static.
Signed-off-by: Adrian Bunk [EMAIL PROTECTED]
Acked-by: Matt Mackall [EMAIL PROTECTED]
--
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On Wed, Apr 11, 2007 at 04:35:44PM +1000, Nick Piggin wrote:
Matt Mackall wrote:
Move the page walker code to lib/
This lets it get shared outside of proc/ and linked in only when
needed.
Still should go into mm/
If it had, you might have also noticed your pagetable walking code
On Thu, Apr 12, 2007 at 01:50:54PM -0700, Jeremy Fitzhardinge wrote:
-#define HEAP_SIZE 0x3000
+#define HEAP_SIZE 0x4000
There are a bunch more of these that'll need fixing.
--
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To unsubscribe from this list: send the
On Thu, Apr 12, 2007 at 03:57:48PM -0700, Jeremy Fitzhardinge wrote:
Matt Mackall wrote:
On Thu, Apr 12, 2007 at 01:50:54PM -0700, Jeremy Fitzhardinge wrote:
-#define HEAP_SIZE 0x3000
+#define HEAP_SIZE 0x4000
There are a bunch more of these that'll
On Thu, Apr 12, 2007 at 04:32:35PM -0700, Andrew Morton wrote:
On Thu, 12 Apr 2007 16:10:50 -0700
William Lee Irwin III [EMAIL PROTECTED] wrote:
On Tue, Apr 03, 2007 at 09:43:30PM -0500, Matt Mackall wrote:
This patch series introduces /proc/pid/pagemap and /proc/kpagemap,
which allow
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