Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753710AbYC2M6w (ORCPT ); Sat, 29 Mar 2008 08:58:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751406AbYC2M6n (ORCPT ); Sat, 29 Mar 2008 08:58:43 -0400 Received: from wa-out-1112.google.com ([209.85.146.180]:1864 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751249AbYC2M6m (ORCPT ); Sat, 29 Mar 2008 08:58:42 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:x-enigmail-version:content-type:content-transfer-encoding; b=Oto7BhguxfCxm8+5MEoBEUFWQnXzuRu76yIfcZ4hGvFwF1Xicex5/ViyQXI8DIzSBVt732sKFEeSE5GFp4+A4/HN2IJPyAvb1PoakcEWpEDB6IISpk0Cqi0pGVsMK2Iv5y6HQ5KjnHrcLTrY0PyvAUDHaPQp1qQt5D/4+wuxYOQ= Message-ID: <47EE3CFA.2000707@gmail.com> Date: Sat, 29 Mar 2008 21:58:34 +0900 From: Tejun Heo User-Agent: Thunderbird 2.0.0.12 (X11/20080226) MIME-Version: 1.0 To: Andrew Morton CC: Hans-Peter Jansen , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org Subject: Re: 2.6.24.3: regular sata drive resets - worrisome? References: <200803201518.32109.hpj@urpla.net> <20080320214830.6d39876d.akpm@linux-foundation.org> In-Reply-To: <20080320214830.6d39876d.akpm@linux-foundation.org> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1305 Lines: 33 Hello, Hans. Andrew Morton wrote: >> since I upgraded to 2.6.24.3 on one of my production systems, I see >> regular device resets like these: >> >> Mar 20 14:33:03 lisa5 kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen >> Mar 20 14:33:03 lisa5 kernel: ata2.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0 >> Mar 20 14:33:03 lisa5 kernel: res 40/00:00:01:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) Ouch, timeout on FLUSH_EXT. Are all errors on cmd ea? >> Should I be worried? smartd doesn't show anything suspicious on those. Can you please post the result of "smartctl -a /dev/sdX"? >> It's been 4 samsung drives at all hanging on a sata sil 3124: FLUSH_EXT timing out usually indicates that the drive is having problem writing out what it has in its cache to the media. There was one case where FLUSH_EXT timeout was caused by the driver failing to switch controller back from NCQ mode before issuing FLUSH_EXT but that was on sata_nv. There hasn't been any similar problem on sata_sil24. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/