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Date:	Wed, 25 Jun 2008 23:14:10 -0500
From:	Eric Sandeen <>
To:	Gary Hawco <>
CC:	Mingming <>,
	"" <>
Subject: Re: Segmentation Faults with 062508 ext4-patch-queue snapshot

Gary Hawco wrote:
> I redid my tests on the last few ext-patch-queue snapshots.
> The snapshot:
> ext4-patch-queue-476b1104923c2228b48aee73070cddd5430b3b54.tar.gz from
> 062408 @2256hrs GMT works fine. No segfaults.
> The latest snapshot:
> ext4-patch-queue-b5db22ef52ed53d8e3fa978a5a29e1609c9333aa.tar.gz from 
> 062508 @ 0019hrs GMT causes segmentation faults whenever I do extensive
> copying of small files (my Gentoo portage tree & metadata cache folders) to
> another ext4dev partition set up identically and then when I make a tarball
> from this copied data.
> I have been able to reproduce the segfaults consistently. Both partitions
> were formatted with flex_bg & meta_bg features enabled (obviously no
> resize_inodes) and are set for ordered data mode.
> I assume delalloc is enabled although ext4-patch-queue does not yet print
> message saying so on boot like mballoc does.
> Any suggestions would be most appreciated.

Do you get kernel messages when this happens?  If so can you provide them?


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