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From: Ben Tebulin <tebulin@googlemail•com>
To: Stefan Beller <stefanbeller@googlemail•com>
Cc: Ben Tebulin <tebulin@googlemail•com>,
	Junio C Hamano <gitster@pobox•com>,
	Thomas Rast <trast@inf•ethz.ch>,
	git@vger•kernel.org, Matthieu Moy <Matthieu.Moy@grenoble-inp•fr>
Subject: Reproducible, corrupt packfile after fresh git-svn checkouts - IDENTIFIED
Date: Wed, 14 Aug 2013 11:29:22 +0200	[thread overview]
Message-ID: <520B4DF2.207@gmail.com> (raw)
In-Reply-To: <5204E67D.9090106@googlemail.com>

Hello everybody!

I'm the guy having the issue, that in a particular Git repository the
reads of an object fail the SHA1 reproducible on *two independent
machines* .

The issue occurs on a very specific repository starting with Linux
Kernel 3.7.2. Unfortunately my E-Mail to the kernel list dit get no
response.

After a long session of rebooting and bisecting the Linux kernel
(fortunately I had a SSD and ccache!) I was able to pinpoint this to the
following patch related to _memory management_ causing my data
corruption with git:

*"mm: limit mmu_gather batching to fix soft lockups on !CONFIG_PREEMPT"*
  787f7301074ccd07a3e82236ca41eefd245f4e07 linux stable [1]
  53a59fc67f97374758e63a9c785891ec62324c81 upstream commit [2]

The patch speaks about "batching [memory] pages to be freed" so I'm a
bit unsure: Is this a Git or a Linux kernel issue?


Thanks
- Ben


[1] https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=787f7301074ccd07a3e82236ca41eefd245f4e07
[2] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=53a59fc67f97374758e63a9c785891ec62324c81

  reply	other threads:[~2013-08-14  9:29 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <52037F47.5010302@exxcellent.de>
     [not found] ` <52037F84.9060006@exxcellent.de>
2013-08-08 11:56   ` Reproducible, corrupt packfile after fresh gitml.jexpert
2013-08-08 12:13     ` Thomas Rast
2013-08-08 12:23       ` Reproducible, corrupt packfile after fresh git-svn checkout gitml.jexpert
2013-08-08 12:31         ` Thomas Rast
2013-08-08 13:12           ` Reproducible, corrupt packfile after fresh git-svn checkout message 3 of 20) gitml.jexpert
2013-08-08 13:18             ` Matthieu Moy
2013-08-08 13:27               ` Reproducible, corrupt packfile after fresh git-svn checkout message gitml.jexpert
2013-08-08 13:34                 ` Matthieu Moy
2013-08-08 13:43                   ` Reproducible, corrupt packfile after fresh git-svn checkout message (gitml: message 5 of 20) gitml.jexpert
2013-08-08 14:20                     ` Thomas Rast
2013-08-08 14:53                       ` Reproducible, corrupt packfile after fresh git-svn checkout message (gitml: message 5 of 20) (gitml: message 6 " Ben Tebulin
2013-08-08 15:28                         ` Thomas Rast
2013-08-08 16:36                           ` Reproducible, corrupt packfile after fresh git-svn checkout message Ben Tebulin
2013-08-08 16:48                             ` Matthieu Moy
2013-08-08 17:38                           ` Reproducible, corrupt packfile after fresh git-svn checkout message (gitml: message 5 of 20) (gitml: message 6 of 20) Junio C Hamano
2013-08-09 12:27                             ` Reproducible, corrupt packfile after fresh git-svn checkout message Ben Tebulin
2013-08-09 12:54                               ` Stefan Beller
2013-08-14  9:29                                 ` Ben Tebulin [this message]
2013-08-14  9:09                               ` Thomas Rast
2013-08-14  9:47                                 ` Ben Tebulin
2013-08-15  9:32                                 ` Ben Tebulin
2013-08-15 14:46                                   ` Junio C Hamano
2013-08-08 13:20             ` Reproducible, corrupt packfile after fresh git-svn checkout message 3 of 20) Thomas Rast
2013-08-08 12:38         ` Reproducible, corrupt packfile after fresh git-svn checkout Matthieu Moy
2013-08-08 12:41         ` Stefan Beller
2013-08-08 12:18     ` Reproducible, corrupt packfile after fresh Stefan Beller

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