On Fri, Apr 10, 2009 at 05:56:36PM -0500, Serge E. Hallyn wrote:
Quoting Alexey Dobriyan (adobri...@gmail.com):
net_create() will be used by C/R code to create fresh netns on restart.
Signed-off-by: Alexey Dobriyan adobri...@gmail.com
Acked-by: Serge Hallyn se...@us.ibm.com
Although
On Fri, Apr 10, 2009 at 08:06:55AM -0700, Linus Torvalds wrote:
On Fri, 10 Apr 2009, Alexey Dobriyan wrote:
This is to show how we see C/R and to provoke discussion on number of
important issues (mounts, ...).
My only initial reaction is that I absolutely hate the naming (not to say
I
On Fri, Apr 10, 2009 at 12:19:23PM -0400, Brian Haley wrote:
Alexey Dobriyan wrote:
And of course, I don't want to see multiline
vmflags = ~(VM_READ|VM_WRITE|
[5 lines skipped]
Then why don't you:
#define VM_CR_FOO (VM_READ|VM_WRITE|...)
vmflags =
On Thu, Apr 09, 2009 at 10:07:11PM -0700, Dave Hansen wrote:
I'm curious how you see these fitting in with the work that we've been
doing with Oren. Do you mean to just start a discussion or are you
really proposing these as an alternative to what Oren has been posting?
Yes, this is posted as
On Mon, 2009-04-13 at 13:14 +0400, Alexey Dobriyan wrote:
[1] Do I inderstand correctly that cookie for shared object is an
address on kernel stack? This is obviously unreliable, if yes :-)
int objref;
...
/* adding 'file' to the hash will keep a reference to
On Fri, Apr 10, 2009 at 05:33:10PM +0800, Gui Jianfeng wrote:
Vivek Goyal wrote:
Hi All,
Here is another posting for IO controller patches. Last time I had posted
RFC patches for an IO controller which did bio control per cgroup.
Hi Vivek,
I got the following OOPS when testing,
On Mon, Apr 06, 2009 at 08:05:56PM +0530, Balbir Singh wrote:
* Vivek Goyal vgo...@redhat.com [2009-03-11 21:56:46]:
Thanks for having a look balbir. Sorry for the late reply..
[..]
+Consider following hypothetical scenario. Lets say there are three physical
+disks, namely sda, sdb and
Quoting Oren Laadan (or...@cs.columbia.edu):
Serge E. Hallyn wrote:
Quoting Oren Laadan (or...@cs.columbia.edu):
From: Dan Smith da...@us.ibm.com
Changes:
- Update to match UTS changes
Signed-off-by: Dan Smith da...@us.ibm.com
Signed-off-by: Oren Laadan or...@cs.columbia.edu
Quoting Môshe van der Sterre (m...@moshe.nl):
Hello,
I am working on the lxc userspace tools, and got this BUG a couple of
times.
Here are the reports:
http://moshe.nl/tty-bugshot1.png
http://moshe.nl/tty-bugshot2.png
I am running 2.6.29.1 from kernel.org in a virtual machine under
SH But actually I think it's better if you move that into an
SH appropriately named little static inline helper (commented). Then
SH the reader can verify it once separately, and then ignore how it
SH works while verifying the surrounding code. Not just here but,
SH other places where you do
Quoting Oren Laadan (or...@cs.columbia.edu):
--- a/checkpoint/Makefile
+++ b/checkpoint/Makefile
@@ -2,8 +2,8 @@
# Makefile for linux checkpoint/restart.
#
-obj-$(CONFIG_CHECKPOINT) += sys.o objhash.o \
+obj-$(CONFIG_CHECKPOINT) += sys.o objhash.o deferqueue.o \
Serge E. Hallyn wrote:
Quoting Oren Laadan (or...@cs.columbia.edu):
--- a/checkpoint/Makefile
+++ b/checkpoint/Makefile
@@ -2,8 +2,8 @@
# Makefile for linux checkpoint/restart.
#
-obj-$(CONFIG_CHECKPOINT) += sys.o objhash.o \
+obj-$(CONFIG_CHECKPOINT) += sys.o objhash.o deferqueue.o \
Quoting Oren Laadan (or...@cs.columbia.edu):
Serge E. Hallyn wrote:
Quoting Oren Laadan (or...@cs.columbia.edu):
--- a/checkpoint/Makefile
+++ b/checkpoint/Makefile
@@ -2,8 +2,8 @@
# Makefile for linux checkpoint/restart.
#
-obj-$(CONFIG_CHECKPOINT) += sys.o objhash.o \
On Mon, 2009-04-13 at 13:14 +0400, Alexey Dobriyan wrote:
On Thu, Apr 09, 2009 at 10:07:11PM -0700, Dave Hansen wrote:
I'm curious how you see these fitting in with the work that we've been
doing with Oren. Do you mean to just start a discussion or are you
really proposing these as an
On Fri, Apr 10, 2009 at 06:36:49AM +0400, Alexey Dobriyan wrote:
Now x86 matrix of migration is:
task/kernel kernel
--
i386/i386 = i386
i386/i386 = x86_64
i386/x86_64 = i386
On Mon, 13 Apr 2009, Alexey Dobriyan wrote:
Well, in OpenVZ everything is in kernel/cpt/ and prefixed with cpt_
and rst_.
So?
We're not merging OpenVZ code _either_.
And I think cr_ is super nice prefix: it's short, it's C-like,
it reminds about restart part
It does no such thing.
On Mon, 13 Apr 2009, Guofu Xiang wrote:
(gdb) disas __kernel_vsyscall
Dump of assembler code for function __kernel_vsyscall:
0xb7f7a400 __kernel_vsyscall+0: int$0x80
0xb7f7a402 __kernel_vsyscall+2: ret
End of assembler dump.
(gdb) disassemble
* Linus Torvalds torva...@linux-foundation.org wrote:
On Mon, 13 Apr 2009, Alexey Dobriyan wrote:
Well, in OpenVZ everything is in kernel/cpt/ and prefixed with
cpt_ and rst_.
So?
We're not merging OpenVZ code _either_.
And I think cr_ is super nice prefix: it's short, it's
Add a little to tst_ipcshm_multi to make it automatically validate the
results and return a pass/fail status indication for automated runs.
Since Oren said he applied my previous patch to his repository, I'm
sending this as a delta from the last one I sent[1]. Since the public
user-cr is not
Quoting Alexey Dobriyan (adobri...@gmail.com):
Hi Alexey,
as far as I can see, the main differences between this patch and the
equivalent in Oren's tree are:
1. kernel auto-selects container init to freeze
2. kernel freezes tasks
3. no objhash taking references
4. no hbuf
5. always require
Hello again,
Another question on containers. This time, for syslog. Is there any
containers support to isolate syslog entries for different containers?
That is, is there any way I can run two different syslogd processes in
two different containers, in such a way that each syslogd process only
Please cc contain...@lists.linux-foundation.org on this sort of thing
so that all the right people get to see it.
On Mon, 13 Apr 2009 18:08:32 -0400
Dan Malek d...@embeddedalley.com wrote:
This patch updates the Memory Controller cgroup to add
a configurable memory usage limit notification.
Quoting Dan Smith (da...@us.ibm.com):
Add a little to tst_ipcshm_multi to make it automatically validate the
results and return a pass/fail status indication for automated runs.
Since Oren said he applied my previous patch to his repository, I'm
sending this as a delta from the last one I
On Mon, 13 Apr 2009 16:45:17 -0700
Dan Malek d...@embeddedalley.com wrote:
On Apr 13, 2009, at 4:08 PM, Andrew Morton wrote:
We've run into problems in the past where a percentage number is too
coarse on large-memory systems.
Proabably that won't be an issue here, but I invite you to
While I was doing testing by open/close files like this:
for (i = 0; i LOOP; i++) {
fd = open(/dev/null);
close(fd);
}
It got a bit slower when devcg is used, so I made this patch
to speed it up.
But walking through whitelist in
thanks ... added.
Dan Smith wrote:
Add a little to tst_ipcshm_multi to make it automatically validate the
results and return a pass/fail status indication for automated runs.
Since Oren said he applied my previous patch to his repository, I'm
sending this as a delta from the last one I
For checkpoint/restart (c/r) we need a method to (re)create the tasks
tree during restart. There are basically two approaches: in userspace
(zap approach) or in the kernel (openvz approach).
Once tasks have been created both approaches are similar in that all
restarting tasks end up calling the
Alexey Dobriyan wrote:
On Thu, Apr 09, 2009 at 10:07:11PM -0700, Dave Hansen wrote:
I'm curious how you see these fitting in with the work that we've been
doing with Oren. Do you mean to just start a discussion or are you
really proposing these as an alternative to what Oren has been
Alexey Dobriyan wrote:
* add struct file_operations::checkpoint
The point of hook is to serialize enough information to allow restoration
of an opened file.
The idea (good one!) is that the code which supplies struct file_operations
know better what to do with file.
Actually,
Some meta comments about this patch set:
* Patches 1-9 are cleanups, unrelated to checkpoint/restart. They
deserve a separate thread.
* You barely take locks or reference counts to objects that you
later refer to. What if something really bad happens ?
* (contd) If you don't take locks, then
Hi,
Serge E. Hallyn wrote:
Quoting Alexey Dobriyan (adobri...@gmail.com):
Hi Alexey,
as far as I can see, the main differences between this patch and the
equivalent in Oren's tree are:
1. kernel auto-selects container init to freeze
Actually, this eliminates the possibility to
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