Re: File system cache corruptions?

[James Pearson <james-p@moving-picture.com>]

Trond Myklebust wrote:
> På on , 06/10/2004 klokka 18:40, skreiv James Pearson:
> 
> 
>>Any ideas on what may be causing this?
> 
> 
> Shared mmapped files tend not to be easy to keep consistent w.r.t. the
> server, because mmap pins the pages in memory.
> 
> Instead of copying data into the mmapped file, it is better to create a
> new file, then rename it onto the old one (like tools such as GNU
> install do for you).

This is true (and something I do as a matter of course if I ever have to 
replace/upgrade shared libraries/binaries etc), but not the case here - 
the executable and its required shared libraries which are on the NFS 
server have been in place and not changed for about 6 months.

There are over 100 clients using the exact same binary and shared 
libraries - only one had this problem.

The server is hard mounted.

Thanks

James Pearson




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