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Re: [dm-devel] dmsetup fails on latest kernel



On Thu, Jan 19, 2012 at 3:02 PM, Kasatkin, Dmitry
<dmitry kasatkin intel com> wrote:
> Hi,
>
> (subject added)
>
> I rebased on the stop of latest mainline tree and now dmsetup fails...
> It says: "Failed to create notification semaphore: Function not implemented".
> I run strace and saw that dmsetup uses "semget" which returns -ENOSYS...
>
> It works on
> 122804ecb59493fbb4d31b3ba9ac59faaf45276f
>
> but does not work on
> ccb19d263fd1c9e34948e2158c53eacbff369344
>
> Any ideas?
>
> - Dmitry

Hi,

I have bisected the problem...

It is introduced by this commit:

303395ac3bf3e2cb488435537d416bc840438fcb is the first bad commit
commit 303395ac3bf3e2cb488435537d416bc840438fcb
Author: H. Peter Anvin <hpa linux intel com>
Date:   Fri Nov 11 16:07:41 2011 -0800

    x86: Generate system call tables and unistd_*.h from tables


It came from:  Merge branch 'x86-syscall-for-linus' of
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Was on 17.01.2012...

I have 32 bit VM and I have SYSVIPC enabled in the configuration...

- Dmitry


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