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Date: Fri, 1 Jun 2007 21:52:45 +0400
From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Eric Sandeen <sandeen@sandeen.net>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>,
       Andrew Morton <akpm@linux-foundation.org>,
       LKML <linux-kernel@vger.kernel.org>, Jan Kara <jack@suse.cz>
Subject: Re: [PATCH 2/2] Fix possible leakage of blocks in UDF
Message-ID: <20070601175245.GD8398@cvg>
References: <20070524203653.GA7693@duck.suse.cz> <465DF0B4.2050203@sandeen.net> <465DF91F.3010201@sandeen.net> <20070531174201.GB8392@cvg> <465F09E7.7000300@sandeen.net> <20070601164926.GA8398@cvg> <20070601100425.89537dda.akpm@linux-foundation.org> <466054C1.3040100@sandeen.net> <20070601174806.GC8398@cvg> <46605CA6.1050509@sandeen.net>
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[Eric Sandeen - Fri, Jun 01, 2007 at 12:51:34PM -0500]
| Cyrill Gorcunov wrote:
| >[Eric Sandeen - Fri, Jun 01, 2007 at 12:17:53PM -0500]
| >| Andrew Morton wrote:
| >| 
| >| >Recursive lock_kernel() is OK.
| >| 
| >| Oh, it is?  Clearly I am not well versed in the BKL... that's probably a 
| >| good thing.... :)
| >| 
| >| Ok, let me look into it further.  I changed lock_kernel to 
| >| udf_lock_kernel to complain & backtrace if we re-lock, and it always 
| >| immediately hung after that; I assumed that was it.  I'll investigate 
| >| further.
| >| 
| >| -Eric
| >| 
| >
| >Btw, Andrew is there any way to force kernel to use special UDF module
| >instead of compiled-in one? (Sorry for stupid question ;)
| 
| Not if it's  already built in (at least not with more hackery than it's 
| worth...) - just rebuild your kernel w/ udf as a module.
| 
| BTW my testcase before was bogus, that's not what's causing the lockup. 
|  I'll keep investigating now that I know what *not* to look for. ;-)
| 
| -Eric
| 

Thanks for answer

		Cyrill