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From: "J. Bruce Fields" <bfields@fieldses.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: git@vger.kernel.org
Subject: Re: "failed to read delta base object at..."
Date: Mon, 25 Aug 2008 18:13:21 -0400	[thread overview]
Message-ID: <20080825221321.GL2213@fieldses.org> (raw)
In-Reply-To: <alpine.LFD.1.10.0808251435540.3363@nehalem.linux-foundation.org>

On Mon, Aug 25, 2008 at 02:37:39PM -0700, Linus Torvalds wrote:
> 
> 
> On Mon, 25 Aug 2008, J. Bruce Fields wrote:
> > 
> > OK.  I seem to recall these pack files are created with something like
> > 
> > 	open
> > 	write
> > 	sync
> > 	close
> > 	rename
> > 
> > ? 
> 
> Yes. We're trying to be _extremely_ safe and only do things that should 
> work for everything.
> 
> > This is just ext3 with data=writeback on a local laptop disk,
> > ubuntu's 2.6.24-21-generic.  Would it be any use trying to look more
> > closely at the pack in connection for any hints?
> 
> You still have the packfile that caused problems available somewhere? If 
> so, absolutely yes. If you have the corrupt pack, please make it 
> available.
> 
> > (But with my git repo back I'm happy enough to just forget this for now
> > if there's not anything obvious to try.)
> 
> With the actual corrupt pack, we can make a fairly intelligent guess about 
> exactly what the corruption was. Was it a flipped bit, or what? So if you 
> have it, please do send it over.

OK!  It's in:

	http://www.citi.umich.edu/u/bfields/bad-pack/

I assume the .idx file isn't interesting, but it's there anyway in case.

--b.

  reply	other threads:[~2008-08-25 22:14 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-25 16:46 "failed to read delta base object at..." J. Bruce Fields
2008-08-25 18:58 ` Nicolas Pitre
2008-08-25 21:18   ` J. Bruce Fields
2008-08-25 19:01 ` Linus Torvalds
2008-08-25 21:31   ` J. Bruce Fields
2008-08-25 21:37     ` Linus Torvalds
2008-08-25 22:13       ` J. Bruce Fields [this message]
2008-08-25 23:59         ` Linus Torvalds
2008-08-26 20:43           ` Jason McMullan
2008-08-26 21:01             ` Jason McMullan
2008-08-27 17:05               ` Linus Torvalds
2008-08-27 19:17                 ` Nicolas Pitre
2008-08-27 19:48                   ` Linus Torvalds
2008-08-27 20:46                     ` Nicolas Pitre
2008-08-29  2:05                       ` [PATCH 0/3] don't let disk corruptions escape pack SHA1 checksum Nicolas Pitre
2008-08-29  2:07                         ` [PATCH 1/3] improve reliability of fixup_pack_header_footer() Nicolas Pitre
2008-08-29  2:07                           ` [PATCH 2/3] pack-objects: use fixup_pack_header_footer()'s validation mode Nicolas Pitre
2008-08-29  2:07                             ` [PATCH 3/3] index-pack: " Nicolas Pitre
2008-08-29  4:44                           ` [PATCH 1/3] improve reliability of fixup_pack_header_footer() Shawn O. Pearce
2008-08-29 13:08                             ` Nicolas Pitre
2008-08-29 14:30                               ` Shawn O. Pearce
2008-08-29 20:07                                 ` [PATCH 0/5] pack header rewriting improvements Nicolas Pitre
2008-08-29 20:07                                   ` [PATCH 1/5] pack-objects: improve returned information from write_one() Nicolas Pitre
2008-08-29 20:07                                     ` [PATCH 2/5] improve reliability of fixup_pack_header_footer() Nicolas Pitre
2008-08-29 20:08                                       ` [PATCH 3/5] pack-objects: use fixup_pack_header_footer()'s validation mode Nicolas Pitre
2008-08-29 20:08                                         ` [PATCH 4/5] index-pack: " Nicolas Pitre
2008-08-29 20:08                                           ` [PATCH 5/5] fixup_pack_header_footer(): use nicely aligned buffer sizes Nicolas Pitre
2008-08-31  7:10                                             ` Junio C Hamano
2008-08-29 20:14                                 ` [PATCH 1/3] improve reliability of fixup_pack_header_footer() Nicolas Pitre
2008-08-29  4:55                         ` [PATCH 0/3] don't let disk corruptions escape pack SHA1 checksum Shawn O. Pearce
2008-08-26 20:55           ` "failed to read delta base object at..." J. Bruce Fields
2008-08-27 20:14           ` Junio C Hamano

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