From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262004AbVGEXMq (ORCPT ); Tue, 5 Jul 2005 19:12:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262013AbVGEXMj (ORCPT ); Tue, 5 Jul 2005 19:12:39 -0400 Received: from dude3.usprocom.net ([69.222.0.8]:15627 "EHLO usfltd.com") by vger.kernel.org with ESMTP id S261997AbVGEXLz (ORCPT ); Tue, 5 Jul 2005 19:11:55 -0400 Date: Tue, 5 Jul 2005 18:12:14 -0500 Message-Id: <200507051812.AA590604@usfltd.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii From: "art" Reply-To: To: CC: Subject: Re: REGRESSION in 2.6.13-rc1: Massive slowdown with Adaptec SCSI X-Mailer: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org kernel 2.6.13-rc1-git7 after applaying patch transfer back to 72MB/s on aha19160 with 15k rpm seagate with reiserfs3 but possible deadlock in heavy IO - rsync ~50000-files from /mnt/seagate15k/a to /mnt/seagate15k/b ended in middle with deadlock of rsync (3 instances), pdflush, and gam_server in uninteruptible state -- system cannot kill this deadlocked uninterruptibles any clue ??? thanx xboom patch----- diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -2633,6 +2633,11 @@ static void ahc_linux_set_dt(struct scsi ahc_unlock(ahc, &flags); } +#if 0 +/* FIXME: This code claims to support IU and QAS. However, the actual + * sequencer code and aic7xxx_core have no support for these parameters and + * will get into a bad state if they're negotiated. Do not enable this + * unless you know what you're doing */ static void ahc_linux_set_qas(struct scsi_target *starget, int qas) { struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); @@ -2688,6 +2693,7 @@ static void ahc_linux_set_iu(struct scsi ppr_options, AHC_TRANS_GOAL, FALSE); ahc_unlock(ahc, &flags); } +#endif static struct spi_function_template ahc_linux_transport_functions = { .set_offset = ahc_linux_set_offset, @@ -2698,10 +2704,12 @@ static struct spi_function_template ahc_ .show_width = 1, .set_dt = ahc_linux_set_dt, .show_dt = 1, +#if 0 .set_iu = ahc_linux_set_iu, .show_iu = 1, .set_qas = ahc_linux_set_qas, .show_qas = 1, +#endif };