Displaying 20 results from an estimated 10000 matches similar to: "Need Help"
2014 Sep 13
2
Re: Need Help
Thanks a lot Rechard for your inputs.
On Fri, Sep 12, 2014 at 11:23 PM, Richard W.M. Jones <rjones@redhat.com>
wrote:
> On Fri, Sep 12, 2014 at 10:40:14PM +0530, Priyanka Ranjan wrote:
> > Hello Experts,
> >
> > I need a help from you . I am using CentOS 6.4 and using guestfish
> > to modify an ESX image.
> >
> > I am adding a disk, executing
2014 Sep 18
2
Re: Need Help
Hello Richard,
One more question, you mentioned that "hot plugging" is supported from *CentOS
7 *and gave me a link. That link says
"In libguestfs ≥ 1.20, you may add drives and remove after calling
"guestfs_launch" <http://libguestfs.org/guestfs.3.html#guestfs_launch>.
There are some restrictions, see below. This is called*hotplugging*."
When I executed
2014 Sep 17
2
Re: Need Help
On Wed, Sep 17, 2014 at 08:52:57PM +0530, Priyanka Ranjan wrote:
> Many Thanks Richard for your reply.
>
> # /usr/libexec/qemu-kvm -nographic -machine accel=kvm:tcg -device \?
>
> open /dev/kvm: No such file or directory
> failed to initialize KVM: Operation not permitted
> Back to tcg accelerator.
> Could not allocate dynamic translator buffer
>
> I tried
2014 Sep 17
2
Re: Need Help
On Wed, Sep 17, 2014 at 07:59:03PM +0530, Priyanka Ranjan wrote:
> libguestfs: command: run: /usr/libexec/qemu-kvm
> libguestfs: command: run: \ -nographic
> libguestfs: command: run: \ -machine accel=kvm:tcg
> libguestfs: command: run: \ -device ?
> libguestfs: error: /usr/libexec/qemu-kvm exited with error status 1, see
> debug messages above
> libguestfs: trace: launch = -1
2015 Jun 24
1
Conditional statements in libguestfs
Hi Experts,
I am writing a guestfish script . I want to implement conditional logic
inside guestfish script. For example , if state.tgz exists in image do
something else if onetime.tgz exists in the image do someotherthing .
Is it possible to do this within guestfish script. I tried to search a
solution for this in guestfish doucmentation but couldn't find anything
useful.
Thanks in advance
2014 Feb 06
3
Possible to speed up guestmount?
Hi,
Apparently,
guestmount -o allow_other -a "/path/to/raw_file" -m /dev/sda1
"/path/to/mountfolder"
is much slower than
kpartx -av "/path/to/raw_file"
mount /dev/mapper/loop0p1 /path/to/mountfolder
(Doing lots of read/write inside the image.)
I thought guestmount "only" scripts the above. Seems I was wrong on that.
I am currently using
2015 Jan 12
2
Re: Installing Libguestfs
I used libguestfs for transferring files from host OS to guest VM. It
worked successfully. But since the tool being very huge and has many more
functionalities, which my project doesn't need. I just want to use the
functionality provided by virt-copy-in. Can you please tell where will I
get the code which virt-copy-in uses internally? I have libguestfs folder.
In that which files are used for
2018 Apr 09
2
Clang option for reordering sections in .text
Hi ,
I would like to know if there is any way to reorder functions in the object
file in order to improve code locality by implementing subsections
.text.hot.
GCC controls this behavior with '-f(no)-reorder-functions' flag, is there
any way to do so in clang?
Regards,
Priyanka
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2019 Dec 21
2
accessing stack frame after returning from the function
Hello,
I have a few general questions.
1. Whether the memory contents assigned for a function are accessible after
we return from that function? If yes, how can we access it?
2. Does llvm delete the stackframe assigned for a specific function, after
we return from that function?
3. If not, how can we delete the stackframe or clear the memory content
after we return from the function? Where do
2019 Oct 25
3
register spilling and printing live variables
Hello,
I have studied register allocation in theoretical aspects and exploring the
same in the implementation level.
I need a minimal testcase for register spilling to analyze spilling
procedure in llvm. I tried with a testcase taking 20 variables but all the
20 variables are getting stored in the stack using %rbp. Maybe my live
variable analysis is wrong. Please help me with a minimal testcase
2014 Dec 30
2
Installing Libguestfs
I want to transfer files between host and guest. What are the ways to
transfer these files? Is libguestfs the only way to transfer files between
host and guest?
Regards,
Priyanka Naik
2020 Feb 12
2
tool options to generate spill code
Hello,
For the following test case, reg.c
#include <stdio.h>
int getinput()
{
static int u=10;
return u++;
}
int main()
{
int a,b,c,d,e,f,g;
a=getinput();
b=getinput();
c=getinput();
d=getinput();
e=getinput();
f=getinput();
g=getinput();
printf("%d %d %d %d %d %d %d\n",a,b,c,d,e,f,g);
a=b=c=d=e=f=g=0;
return 0;
}
*1.
2016 Mar 13
2
Improving supermin appliance startup time (lkvm/qboot)
Hi,
I remembered reading about Intel Clear Containers [1], and Hyper/Qboot [2]
that support startup times measured in the hundreds of miliseconds range.
On an AMD FX(tm)-8350 'guestfish -a /dev/null run' takes ~4s when run the 2nd/3rd time:
real 0m4.152s
user 0m2.120s
sys 0m0.564s
Are there any plans on applying these improvements to the supermin appliance?
I did some quick tests on
2016 Mar 16
1
Re: Improving supermin appliance startup time (lkvm/qboot)
On 03/15/2016 21:34, Richard W.M. Jones wrote:
> I was looking at Clear Containers last week.
> [...]
>
> This is all very good analysis.
Thanks, looks like I raised the question at a good time :)
>
> The issues that I had in brief were:
>
> (1) We could run kvmtool, perhaps by adding a new backend, but it
> seems a better idea to add the required features to qemu.
2014 Dec 17
1
Communication between Host and Guest
We wanted to migrate the process from host machine to guest machine using
virtio serial. We have already completed with dumping and restoring
processes. We wanted to transfer those dumped files to guest so that they
could be restored back, using virtio serial. I found many stuff related to
virtio serial but couldn't get the code for transferring files. Can you
provide us with the links which
2020 Jan 02
6
error in building llvm with default options
hello,
I am trying to build LLVM with default options. I am getting the following
error message after make.
[100%] Building C object
tools/llvm-c-test/CMakeFiles/llvm-c-test.dir/metadata.c.o
[100%] Building C object
tools/llvm-c-test/CMakeFiles/llvm-c-test.dir/module.c.o
[100%] Building C object
tools/llvm-c-test/CMakeFiles/llvm-c-test.dir/object.c.o
[100%] Building C object
2020 Jan 02
2
error in building llvm with default options
Various options for reducing memory usage when building LLVM:
* Don't use bfd-ld, at least use gold, probably use lld if you have it
available
* With Ninja and/or CMake there's some way to specify the maximum number of
concurrent linkactions - lower this to fit in your available memory
* If you're building with debug info: Use Split DWARF
On Thu, Jan 2, 2020 at 5:21 AM Kókai Péter
2017 Dec 24
1
Libvirt not terminating SSH processes
Hi LibVirt team,
I am facing an issue with libvert. I am closing a "qemu+ssh" connection but
the initiated ssh process are going into sleep mode and not getting killed
upon closing the connection. Can you please help me figure out the issue ?
--
With Kind Regards
Priyanka Gupta
2020 Jan 02
3
error in building llvm with default options
The last time this came up, we agreed something should be done to fix the
defaults, but nobody picked it up and ran with it. I think there was
consensus, it just needs legwork now.
On Thu, Jan 2, 2020 at 11:58 AM Aaron Smith via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> There was a recent thread on reducing memory:
>
2013 May 14
1
guestfish runs w/ a nested guest
# Ref: http://libguestfs.org/guestfs-performance.1.html
Run the below command:
$ time guestfish -a /dev/null run
NOTE: Discard the first few results, to get a hot cache. (Thanks Rich.)
1/ L0. with L1 running.
----------------------------------------------------------------------
$ for i in {1..10}; do time guestfish -a /dev/null run; done
real 0m28.277s
user 0m11.028s