From: Justin Maggard Subject: Re: large file system & high object count testing Date: Mon, 31 Aug 2009 14:25:08 -0700 Message-ID: <150c16850908311425vbc1c0a1if2a7d8ed56f650f5@mail.gmail.com> References: <4A9BFB88.5030409@redhat.com> <4A9C0220.1040503@redhat.com> <20090831205608.GE4197@webber.adilger.int> <4A9C3A7B.3050302@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Andreas Dilger , linux-ext4@vger.kernel.org, "Ted Ts'o" To: Ric Wheeler Return-path: Received: from wa-out-1112.google.com ([209.85.146.176]:2039 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750957AbZHaVZH convert rfc822-to-8bit (ORCPT ); Mon, 31 Aug 2009 17:25:07 -0400 Received: by wa-out-1112.google.com with SMTP id j5so570463wah.21 for ; Mon, 31 Aug 2009 14:25:08 -0700 (PDT) In-Reply-To: <4A9C3A7B.3050302@redhat.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Aug 31, 2009 =A013:02 -0400, Ric Wheeler wrote: > Mount after fsck: > Aug 31 12:27:12 megadeth kernel: EXT4-fs (dm-75): > ext4_check_descriptors: Checksum for group 487 failed (59799!=3D46827= ) > Aug 31 12:27:12 megadeth kernel: EXT4-fs (dm-75): group descriptors > corrupted! Ah, so it's not just me. It looks like you're seeing the exact same thing I reported a few days ago in the ">16TB issues" thread. You don't even have to do anything fancy to make this happen. My test case involves simply creating 5 directories on the newly-created 64-bit filesystem, and running e2fsck on it immediately after unmounting to get the same results. -Justin -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html