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Date: Wed, 24 Mar 2010 18:10:52 +0200
From: Boaz Harrosh <bharrosh@panasas.com>
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To: Al Viro <viro@ZenIV.linux.org.uk>
CC: linux-fsdevel <linux-fsdevel@vger.kernel.org>,
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       Benny Halevy <bhalevy@panasas.com>,
       "J. Bruce Fields" <bfields@citi.umich.edu>,
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Subject: Re: [GIT BISECT] first bad commit: 1f36f774 Switch !O_CREAT case
 to use of do_last()
References: <4BAA3493.1030802@panasas.com> <20100324160037.GP30031@ZenIV.linux.org.uk> <4BAA3828.2070506@panasas.com> <20100324160754.GQ30031@ZenIV.linux.org.uk>
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On 03/24/2010 06:07 PM, Al Viro wrote:
> On Wed, Mar 24, 2010 at 06:04:56PM +0200, Boaz Harrosh wrote:
>>> Bloody impressive...  Does that happen to underlying fs or to what you
>>> are seeing via NFS?
>>
>> Only via NFS. All local access is fine.
>>
>> After the corruption above I can cd to the local mount cp a fresh copy
>> of .git/index file and play around just fine.
>> Once I return to the NFS mounted directory, a git status will do it.
>> It does not matter if caches are cold (Takes a long time) or hot it happens
>> every time.
>>
>> Weird I know, I'm playing some more with it as we speak
> 
> What happens if you export to box running older kernel *or* from box
> running older kernel?  IOW, is that nfsd or nfs client getting unhappy?
> I'd suspect the latter, but...


Good question, I'm just getting to that because currently it's all
over localhost (same kernel, BTW inside a UML)

I will try what you said. Please through any other tests on me, if needed.

Boaz