Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752387Ab1FXF2R (ORCPT ); Fri, 24 Jun 2011 01:28:17 -0400 Received: from sm-d311v.smileserver.ne.jp ([203.211.202.206]:1872 "EHLO sm-d311v.smileserver.ne.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750773Ab1FXF2Q (ORCPT ); Fri, 24 Jun 2011 01:28:16 -0400 Message-ID: <4E04206C.5000008@dsn.okisemi.com> Date: Fri, 24 Jun 2011 14:28:12 +0900 From: Tomoya MORINAGA User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; ja; rv:1.9.2.17) Gecko/20110414 Thunderbird/3.1.10 MIME-Version: 1.0 To: Alexander Stein CC: "Wang, Yong Y" , Vinod Koul , Dan Williams , linux-kernel@vger.kernel.org, "Wang, Qi" , "toshiharu-linux@dsn.okisemi.com" Subject: Re: [PATCH] pch_dma: Fix channel locking References: <1308755133-8605-1-git-send-email-alexander.stein@systec-electronic.com> <4E0284C7.30909@dsn.okisemi.com> <201106230942.24105.alexander.stein@systec-electronic.com> In-Reply-To: <201106230942.24105.alexander.stein@systec-electronic.com> Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1096 Lines: 37 Hi Alexander Stein I couldn't see the issue at all. (2011/06/23 16:42), Alexander Stein wrote: > The close and open is actually needed (I had a separate application for that > yesterday). Does the above mean that we must delete "close" processing from your test program, right ? (Modifying like this, I couldn't see the issue) > > If all is done without closing again, I get the following bug: > Does the above mean that executing your test program many times whose 2 "close" are deleted , did you see the issue ? My steps like below Boot Fedora14 Install DMA driver Install pch_uart driver Enable DMA (setserial /dev/ttyPCH0 ^low_latency) Modifying your test program Delete 2 close() function. Compile your test program. Execute the tp. Execute the tp. Execute the tp. I couldn't see any error message. -- tomoya OKI SEMICONDUCTOR CO., LTD. -- 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/