From: Nikola Ciprich Subject: Re: 2.6.32.4 - still getting ext4 related crashes Date: Tue, 26 Jan 2010 21:47:54 +0100 Message-ID: <20100126204754.GA4637@nik-comp.linuxbox.cz> References: <20100122085035.GA5020@nik-nb2.linuxbox.cz> <20100122213827.GH21263@thunk.org> <20100124071943.GA4407@nik-comp.linuxbox.cz> <20100124094853.GA4382@thunk.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Nikola Ciprich , ext4 maillist To: tytso@mit.edu Return-path: Received: from gwu.lbox.cz ([62.245.111.132]:48353 "EHLO gwu.lbox.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752446Ab0AZUre (ORCPT ); Tue, 26 Jan 2010 15:47:34 -0500 Content-Disposition: inline In-Reply-To: <20100124094853.GA4382@thunk.org> Sender: linux-ext4-owner@vger.kernel.org List-ID: Hello Theo, Actually it's ME who appreciates YOUR efforts ;) I'm sorry for late reply, I did a lot of testing and I've been a bit busy lately. It's getting quite weird. I can 100% reproduce it. BUT - the thing is, I can reproduce it only on external eSATA box with long eSATA cable. I've tried it on two different machines, and with two different disk boxes. Using shorter cabling seems to fix the problem. I'd just close the problem stating that it's caused byt crappy cable, but what worries me is why it was working with older kernels? Does it mean our backups were just silently being damaged and new kernel somehow detects the problem? (and if it's the hw problem, kernel could maybe show it the better way then just crashing). I'm going to repeat tests with older kernels which were working OK, and I can also test newer ones. I'll also try to get new cable of same length to check it again. Do You have any other ideas what else I should check? with best regards nik On Sun, Jan 24, 2010 at 04:48:53AM -0500, tytso@mit.edu wrote: > On Sun, Jan 24, 2010 at 08:19:43AM +0100, Nikola Ciprich wrote: > > Hi, > > yes, I can reproduce it reliably, I'll give it a try tomorrow and > > report. > > have a nice day. > > Thanks, I appreciate it. If it does reproduce on 2.6.33-rc3+, could > you send me the output of "dumpe2fs -h /dev/XXX"? > > Best regards, > > - Ted > -- > To unsubscribe from this list: send the line "unsubscribe linux-ext4" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- ------------------------------------- Nikola CIPRICH LinuxBox.cz, s.r.o. 28. rijna 168, 709 01 Ostrava tel.: +420 596 603 142 fax: +420 596 621 273 mobil: +420 777 093 799 www.linuxbox.cz mobil servis: +420 737 238 656 email servis: servis@linuxbox.cz -------------------------------------