From: Ric Wheeler Subject: Re: 2.6.32.4 - still getting ext4 related crashes Date: Wed, 27 Jan 2010 15:40:06 -0500 Message-ID: <4B60A4A6.3070001@redhat.com> References: <20100122085035.GA5020@nik-nb2.linuxbox.cz> <20100122213827.GH21263@thunk.org> <20100124071943.GA4407@nik-comp.linuxbox.cz> <20100124094853.GA4382@thunk.org> <20100126204754.GA4637@nik-comp.linuxbox.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: tytso@mit.edu, Nikola Ciprich , ext4 maillist , IDE/ATA development list To: Nikola Ciprich Return-path: In-Reply-To: <20100126204754.GA4637@nik-comp.linuxbox.cz> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org On 01/26/2010 03:47 PM, Nikola Ciprich wrote: > 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 > > Hi Nik, If you only see this with an external S-ATA box and a long cable, we might have issues with S-ATA (and knock on issues with error handling up the stack). Can you summarize/repost the log of the panic with the linux-ide people cc'ed (added above)? Thanks! Ric > > 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 >> >> >