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Date: Thu, 17 Jan 2013 22:05:14 -0500
Message-ID: <CAGHJv4e0biuB5wKURyX6VJuiKYpc=2hDtHxHKeGuKrFE+ivj6w@mail.gmail.com>
Subject: Re: rtorrent and recent snapshots - apparent problem with msync()
From: Chris Sutcliffe <ir0nh34d AT gmail DOT com>
To: The Cygwin Mailing List <cygwin AT cygwin DOT com>
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On 17 January 2013 19:35, Christopher Faylor wrote:
> On Thu, Jan 17, 2013 at 04:42:36PM -0500, Chris Sutcliffe wrote:
>>I've uploaded the strace for this issue here:
>>
>>http://dl.dropbox.com/u/5530441/cygwin/rtorrent.strace
>>
>>Please let me know if there is anything else I can do to help.
>
> Thanks.  That helped.
>
> msync() is failing with an EACCESS errno.  That translates to a windows
> error: ERROR_LOCK_VIOLATION.  According to the ancient wisdom of google,
> it is not uncommon for the FlushViewOfFile() function to return with
> this error in some cases.
>
> I added a retry to the function fhandler_disk_file::msync and tried
> running rtorrent to download a debian iso (which seemed to be what you
> were doing).  I could duplicate your problem before adding the retry but
> I don't see it now.
>
> The command I was using:
>
> rtorrent http://cdimage.debian.org/debian-cd/6.0.6/i386/bt-cd/debian-6.0.6-i386-CD-1.iso.torrent
>
> I'm generating a snapshot now.  Please give it a try when it shows up.

Testing the 20130118 snapshot and so far so good.  I'll stress test it
some more, but so far I've not been able to recreate the issue.

Thanks for the quick response!

Chris

--
Chris Sutcliffe
http://emergedesktop.org
http://www.google.com/profiles/ir0nh34d

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