4:08 a.m.
Is it possible to get the source for filefrag as used on Lustre? I have
a simple program that does the FIEMAP ioctl requests and it
crashes the client systems. I would like to figure out how filefrag
does the fiemap calls without crashing systems. I have done strace on
both my program and filefrag, and they both use the same command
argument to ioctl. I am kind of stuck until LU-4619 gets address.
https://jira.hpdd.intel.com/browse/LU-4619
Thanks for any help.
John
--
John Bauer
I/O Doctors LLC
507-766-0378
bauerj(a)iodoctors.com
4:59 a.m.
The filefrag command is part of the Lustre patched e2fsprogs. You can get the source from
git.whamcloud.com in the tools/e2fsprogs repo.
Cheers, Andreas
On Mar 6, 2014, at 10:09, "John Bauer"
<bauerj(a)iodoctors.com> wrote:
Is it possible to get the source for filefrag as used on Lustre? I have a simple program
that does the FIEMAP ioctl requests and it
crashes the client systems. I would like to figure out how filefrag does the fiemap
calls without crashing systems. I have done strace on
both my program and filefrag, and they both use the same command argument to ioctl. I am
kind of stuck until LU-4619 gets address.
https://jira.hpdd.intel.com/browse/LU-4619
Thanks for any help.
John
--
John Bauer
I/O Doctors LLC
507-766-0378
bauerj(a)iodoctors.com
_______________________________________________
HPDD-discuss mailing list
HPDD-discuss(a)lists.01.org
https://lists.01.org/mailman/listinfo/hpdd-discuss
11:39 a.m.
What a I missing here? I download the e2fsprogs source from
git.whamcloud.com,
./configure
make clean all
The resulting filefrag gets Operation not supported errno. I do an
strace on using both /usr/bin/filefrag and my filefrag. The strace
output is
virturally identical up to the point of the FIEMAP ioctl call. The only
differences appear to be memory addresses.
Even if I copy /usr/sbin/filefrag to my ~/bin/filefrag ( to elminate
executable ownership concerns ) I get the same result.
Attached are the 2 strace files and a diff of the 2 files.
binfilefrag.strace output from using /usr/sbin/filefrag that I copied to
my ~/bin/filefrag
myff.strace output from using the filefrag that I built from the
downloaded source.
ff.diff output from the diff the above 2.
This was all done on the "swan" nodes at Cray.
John
On 3/8/2014 11:59 AM, Dilger, Andreas wrote:
The filefrag command is part of the Lustre patched e2fsprogs. You can
get the source from git.whamcloud.com in the tools/e2fsprogs repo.
Cheers, Andreas
> On Mar 6, 2014, at 10:09, "John Bauer"<bauerj(a)iodoctors.com> wrote:
>
>
> Is it possible to get the source for filefrag as used on Lustre? I have a simple
program that does the FIEMAP ioctl requests and it
> crashes the client systems. I would like to figure out how filefrag does the fiemap
calls without crashing systems. I have done strace on
> both my program and filefrag, and they both use the same command argument to ioctl.
I am kind of stuck until LU-4619 gets address.
>
> https://jira.hpdd.intel.com/browse/LU-4619
>
> Thanks for any help.
>
> John
>
> --
> John Bauer
> I/O Doctors LLC
> 507-766-0378
> bauerj(a)iodoctors.com
>
> _______________________________________________
> HPDD-discuss mailing list
> HPDD-discuss(a)lists.01.org
> https://lists.01.org/mailman/listinfo/hpdd-discuss
--
John Bauer
I/O Doctors LLC
507-766-0378
bauerj(a)iodoctors.com
12:04 p.m.
Sorry, I forgot to say that the Lustre patches are on a branch called
"master-lustre" not the "master" branch (which is the upstream
e2fsprogs).
Cheers, Andreas
On Mar 9, 2014, at 18:39, "John Bauer"
<bauerj@iodoctors.com<mailto:bauerj@iodoctors.com>> wrote:
What a I missing here? I download the e2fsprogs source from
git.whamcloud.com<http://git.whamcloud.com>,
./configure
make clean all
The resulting filefrag gets Operation not supported errno. I do an strace on using both
/usr/bin/filefrag and my filefrag. The strace output is
virturally identical up to the point of the FIEMAP ioctl call. The only differences
appear to be memory addresses.
Even if I copy /usr/sbin/filefrag to my ~/bin/filefrag ( to elminate executable ownership
concerns ) I get the same result.
Attached are the 2 strace files and a diff of the 2 files.
binfilefrag.strace output from using /usr/sbin/filefrag that I copied to my
~/bin/filefrag
myff.strace output from using the filefrag that I built from the downloaded source.
ff.diff output from the diff the above 2.
This was all done on the "swan" nodes at Cray.
John
On 3/8/2014 11:59 AM, Dilger, Andreas wrote:
The filefrag command is part of the Lustre patched e2fsprogs. You can get the source from
git.whamcloud.com<http://git.whamcloud.com> in the tools/e2fsprogs repo.
Cheers, Andreas
On Mar 6, 2014, at 10:09, "John Bauer"
<bauerj@iodoctors.com><mailto:bauerj@iodoctors.com> wrote:
Is it possible to get the source for filefrag as used on Lustre? I have a simple program
that does the FIEMAP ioctl requests and it
crashes the client systems. I would like to figure out how filefrag does the fiemap calls
without crashing systems. I have done strace on
both my program and filefrag, and they both use the same command argument to ioctl. I am
kind of stuck until LU-4619 gets address.
https://jira.hpdd.intel.com/browse/LU-4619
Thanks for any help.
John
--
John Bauer
I/O Doctors LLC
507-766-0378
bauerj@iodoctors.com<mailto:bauerj@iodoctors.com>
_______________________________________________
HPDD-discuss mailing list
HPDD-discuss@lists.01.org<mailto:HPDD-discuss@lists.01.org>
https://lists.01.org/mailman/listinfo/hpdd-discuss
--
John Bauer
I/O Doctors LLC
507-766-0378
bauerj@iodoctors.com<mailto:bauerj@iodoctors.com>
<binfilefrag.strace>
<myff.strace>
<ff.diff>
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John Bauer