[Samba] Samba over PVFS: Corrupted Data

Andrew Bartlett abartlet at samba.org
Thu Jan 5 19:59:15 GMT 2006

On Thu, 2006-01-05 at 14:48 -0500, Justin Mazzola Paluska wrote:
> On Tue, Dec 20, 2005 at 08:08:24AM -0800, Jeremy Allison wrote:
> > Ok, what you need is to create files locally on the windows client
> > of 512 bytes, 1024 bytes etc. and then just copy them onto the
> > Samba drive. Check what the smallest size is that the first file becomes
> > corrupted. That will show the simplest problem that reproduces the
> > issue. At *that* point then send in logs etc. Without an *exact*
> > method of reproducing this with detailed information on what is
> > going wrong (ie. the last 20 bytes of a 512 byte file get corrupted,
> > but a 256 byte file is fine - here is the comparitive copy) it will
> > be a massive investment of time to track this down, that we currently
> > don't have. You're going to have to do more work on this I'm afraid.
> OK, I made a bunch of files consisting of the string
> "123456789abcdef\n" where \n is the UNIX newline (ASCII 0xA) and
> performed the binary search.  Files 64KB (=65536 bytes) and higher are
> corrupted and files under 64KB are fine.

Have you looked into tools such as fsx and fstest to determine this
isn't a filesystem failure?


Andrew Bartlett

Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org
Student Network Administrator, Hawker College  http://hawkerc.net
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