[Pvfs2-developers] Problem with kernel module

[Randall Martin]

I am using the public 2.7.0 version.

-Randy


On 6/20/08 11:22 AM, "Phil Carns" <carns at mcs.anl.gov> wrote:

> Which PVFS version/branch are you using?
> 
> This sounds like a problem that I ran into a while back; if so it should
> be fixed in trunk now.
> 
> tracker:
> https://trac.mcs.anl.gov/projects/pvfs/ticket/42
> 
> bug fix:
> http://www.pvfs.org/fisheye/browse/PVFS/src/io/trove/trove-dbpf/dbpf-keyval.c?
> r1=1.86&r2=1.87
> 
> related performance fix:
> http://www.pvfs.org/fisheye/browse/PVFS/src/kernel/linux-2.6/dir.c?r1=1.54&r2=
> 1.55
> 
> -Phil
> 
> Randall Martin wrote:
>> I¹m one of the developers working with Walt here at Clemson.  We are
>> running some tests creating large numbers of files and I have run across
>> what appears to be a bug in the PVFS kernel module.  If I create 100,000
>> files and the use the linux ls command, the output looks fine until it
>> hits file name 00034467.   Each file name listed after file 00034466
>> that has 2 or 3 entries.  The output of the pvfs2-ls command is correct
>> with only a single entry per file name.  It looks like we are hitting on
>> some internal limit.  Here¹s an example of the ls output:
>> 
>> 00034465
>> 00034466
>> 00034467
>> 00034467
>> 00034468
>> 00034468
>> 00034468
>> 00034469
>> 00034469
>> 00034469
>> 00034470
>> 00034470
>> 00034470
>> 00034471
>> 00034471
>> 00034471
>> 00034472
>> 00034472
>> 00034472
>> 00034473
>> 
>> Any ideas what part of the kernel module code I should look at?  I¹m
>> using the 2.6 kernel.
>> 
>> -Randy
>> 
>> 
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>> 
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>