* [linux-lvm] dmsetup and 2.6.31 kernel?
@ 2010-01-28 9:50 Hadmut Danisch
2010-01-28 11:05 ` Milan Broz
0 siblings, 1 reply; 3+ messages in thread
From: Hadmut Danisch @ 2010-01-28 9:50 UTC (permalink / raw)
To: linux-lvm
Hi,
just a question:
With a 2.6.31 kernel (ubuntu) I run into the problem that some dmsetup
and dmlosetup commands that used to work before do not work anymore.
e.g.
dd if=/dev/zero of=/tmp/testdisk count=1000
dmsetup create xxxtest --table '0 1000 loop /tmp/testdisk 0'
produces
device-mapper: reload ioctl failed: Invalid argument
Command failed
an strace shows that all problems are caused by
ioctl(3, DM_TABLE_LOAD, 0x959c430) = -1 EINVAL (Invalid argument)
Even compiling the latest source from your cvs repository does not
solve the problem.
Any idea how to solve that problem?
regards
Hadmut
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [linux-lvm] dmsetup and 2.6.31 kernel?
2010-01-28 9:50 [linux-lvm] dmsetup and 2.6.31 kernel? Hadmut Danisch
@ 2010-01-28 11:05 ` Milan Broz
2010-01-28 11:27 ` Bryn M. Reeves
0 siblings, 1 reply; 3+ messages in thread
From: Milan Broz @ 2010-01-28 11:05 UTC (permalink / raw)
To: LVM general discussion and development; +Cc: Hadmut Danisch
On 01/28/2010 10:50 AM, Hadmut Danisch wrote:
> With a 2.6.31 kernel (ubuntu) I run into the problem that some dmsetup
> and dmlosetup commands that used to work before do not work anymore.
>
> e.g.
>
> dd if=/dev/zero of=/tmp/testdisk count=1000
> dmsetup create xxxtest --table '0 1000 loop /tmp/testdisk 0'
dm-loop target was never in upstream kernel, it is still available only
as separate kernel patch.
You had patched kernel previously perhaps?
Milan
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [linux-lvm] dmsetup and 2.6.31 kernel?
2010-01-28 11:05 ` Milan Broz
@ 2010-01-28 11:27 ` Bryn M. Reeves
0 siblings, 0 replies; 3+ messages in thread
From: Bryn M. Reeves @ 2010-01-28 11:27 UTC (permalink / raw)
To: LVM general discussion and development
On Thu, 2010-01-28 at 12:05 +0100, Milan Broz wrote:
> On 01/28/2010 10:50 AM, Hadmut Danisch wrote:
> > With a 2.6.31 kernel (ubuntu) I run into the problem that some dmsetup
> > and dmlosetup commands that used to work before do not work anymore.
> >
> > e.g.
> >
> > dd if=/dev/zero of=/tmp/testdisk count=1000
> > dmsetup create xxxtest --table '0 1000 loop /tmp/testdisk 0'
>
> dm-loop target was never in upstream kernel, it is still available only
> as separate kernel patch.
>
> You had patched kernel previously perhaps?
I think at some point someone was packaging unofficial Ubuntu kernels
with the dm-loop patch applied (I got some bugmail from launchpad about
it).
Hadmut, is it possible you had one of these installed previously?
Regards,
Bryn.
^ permalink raw reply [flat|nested] 3+ messages in thread
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