[OpenIndiana-discuss] statfs() problem with HP-UX 11.23, 11.31 client and oi_151a server

[James Carlson]

Albert Chin wrote:
> On Sun, Nov 27, 2011 at 08:04:33AM -0500, James Carlson wrote:
>> On 11/27/11 02:03, Albert Chin wrote:
>>> On Sun, Nov 27, 2011 at 12:48:39AM -0600, Albert Chin wrote:
>>>> We're running oi_151a and using it to serve up file systems to HP-UX
>>>> 11.23 and 11.31 hosts. Unfortunately, we're seeing statfs() problems
>>>> on this NFS server. We don't see this issue on any other client
>>>> (Solaris 2.6-10, AIX 5.1-7, HP-UX 10.20, 11.00, 11.11, Tru64 UNIX,
>>>> IRIX, RHEL 4-6).
>> Do you have 1TB or more in this file system?  If so, then this is
>> (unfortunately) the expected result.  statfs() has int32_t structure
>> members, which overflow if you have 2^31 blocks or more in your file
>> system.  2^31 blocks is 1TB.
> 
> I think you're correct. If we quota the exported file system to 40G,
> then there is no problem. So why don't all operating systems return
> EOVERFLOW?

In a different environment (particularly on a 64-bit system), those
values may not be just 32 bits wide.

If you can't fix the application that's doing this, then I think setting
a quota just under 1TB may be the simplest work-around.

-- 
James Carlson         42.703N 71.076W         <carlsonj at workingcode.com>