Re: xfs fails dbench in 2.6.18-rc1-mm1

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On 7/12/06, Badari Pulavarty <[email protected]> wrote:
On Wed, 2006-07-12 at 13:26 -0700, Martin Bligh wrote:
> Badari Pulavarty wrote:
> > Martin Bligh wrote:
> >
> >> Eric Dumazet wrote:
> >>
> >>> On Wednesday 12 July 2006 18:58, Martin Bligh wrote:
> >>>
> >>>> http://test.kernel.org/abat/40891/debug/test.log.1
> >>>>
> >>>> Filesystem type for /mnt/tmp is xfs
> >>>> write failed on handle 13786
> >>>> 4 clients started
> >>>> Child failed with status 1
> >>>> write failed on handle 13786
> >>>> write failed on handle 13786
> >>>> write failed on handle 13786
> >>>>
> >>>> Works fine in -git4
> >>>> All other fs's seemed to run OK.
> >>>>
> >>>> Machine is a 4x Opteron.
> >>>
> >>>
> >>>
> >>> You need to revert 92eb7a2f28d551acedeb5752263267a64b1f5ddf
> >>
> >>
> >> Still fails (thanks Andy).
> >>
> > Wondering if its my changes :(
> > Can you back out these and try ?
> >
> > Please, Please tell me that, its not me :)
> >
> > Thanks,
> > Badari
> >
> > #
> > vectorize-aio_read-aio_write-fileop-methods.patch
> > remove-readv-writev-methods-and-use-aio_read-aio_write.patch
> > streamline-generic_file_-interfaces-and-filemap.patch
> > streamline-generic_file_-interfaces-and-filemap-ecryptfs.patch
>
> You could submit a job to elm3b6 to run dbench on xfs ;-)
>
> M.


I am not able to "insmod xfs.ko" on my x86-64 machine :(

elm3b29:~ # modprobe xfs
FATAL: Error inserting xfs (/lib/modules/2.6.18-rc1-
mm1/kernel/fs/xfs/xfs.ko): Cannot allocate memory

#dmesg shows ..

Could not allocate 8 bytes percpu data
Could not allocate 8 bytes percpu data
Could not allocate 8 bytes percpu data
Could not allocate 8 bytes percpu data
Could not allocate 8 bytes percpu data
Could not allocate 8 bytes percpu data
Could not allocate 328 bytes percpu data
Could not allocate 328 bytes percpu data
Could not allocate 328 bytes percpu data


Whats happening here ?

The per-cpu area is exhausted in -mm x68_64 (If you pump up the percpu
area or cut down NR_CPUS you can work around it).  I ran into this a
few -mm release ago. There are some details in the 2.6.17-mm6 thread
from July 5th of so.

Thanks,
 Keith
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