Message-id: <5593A7A0.6050400@samsung.com>
Date: Wed, 01 Jul 2015 11:41:04 +0300
From: Andrey Ryabinin <a.ryabinin@samsung.com>
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To: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
        linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [git pull] vfs part 2
References: <20150415181406.GL889@ZenIV.linux.org.uk>
 <5538C66F.4050404@samsung.com> <20150621211213.GA18732@ZenIV.linux.org.uk>
 <5587F943.3040006@samsung.com> <20150701062752.GC17109@ZenIV.linux.org.uk>
 <55939BE3.6040902@samsung.com> <20150701082753.GD17109@ZenIV.linux.org.uk>
In-reply-to: <20150701082753.GD17109@ZenIV.linux.org.uk>
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On 07/01/2015 11:27 AM, Al Viro wrote:
> 
> Could you check if 3.19 was getting anything similar?   I.e. in
> p9_client_write() there add
> 	if (count > rsize)
> 		printk(KERN_ERR "bogus RWRITE: %d -> %d\n", rsize, count);
> just before
> 	p9_debug(P9_DEBUG_9P, "<<< RWRITE count %d\n", count);
> and see if that triggers...
> 

Yeah, the same thing:
	[  125.962374] bogus RWRITE: 27 -> 4096
	[  207.587632] bogus RWRITE: 27 -> 4096
	[  215.055627] bogus RWRITE: 27 -> 4096
	[  235.583138] bogus RWRITE: 27 -> 4096
	[  245.749174] bogus RWRITE: 27 -> 4096
	[  246.759270] bogus RWRITE: 27 -> 4096
	[  248.020787] bogus RWRITE: 27 -> 4096
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