Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760781AbXKAL1V (ORCPT ); Thu, 1 Nov 2007 07:27:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757319AbXKAL1L (ORCPT ); Thu, 1 Nov 2007 07:27:11 -0400 Received: from brick.kernel.dk ([87.55.233.238]:20176 "EHLO kernel.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756322AbXKAL1K (ORCPT ); Thu, 1 Nov 2007 07:27:10 -0400 Date: Thu, 1 Nov 2007 12:24:19 +0100 From: Jens Axboe To: Jeff Garzik Cc: linux-kernel@vger.kernel.org, kristen.c.accardi@intel.com, linux-ide@vger.kernel.org Subject: Re: Suspend to ram regression (2.6.24-rc1-git) Message-ID: <20071101112419.GE5037@kernel.dk> References: <20071031201308.GK11514@kernel.dk> <20071101084145.GA5037@kernel.dk> <20071101092155.GB5037@kernel.dk> <4729B670.7090403@garzik.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4729B670.7090403@garzik.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1347 Lines: 36 On Thu, Nov 01 2007, Jeff Garzik wrote: > Jens Axboe wrote: >> Reverting just the default AHCI flags makes it work again. IOW, with the >> below patch I can suspend properly with current -git. >> diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c >> index ed9b407..77f7631 100644 >> --- a/drivers/ata/ahci.c >> +++ b/drivers/ata/ahci.c >> @@ -190,8 +190,7 @@ enum { >> AHCI_FLAG_COMMON = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | >> ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA | >> - ATA_FLAG_ACPI_SATA | ATA_FLAG_AN | >> - ATA_FLAG_IPM, >> + ATA_FLAG_ACPI_SATA | ATA_FLAG_AN, >> AHCI_LFLAG_COMMON = ATA_LFLAG_SKIP_D2H_BSY, > > > sounds like the easy thing to do, in light of this breakage, might be to > default it to off, add a module parameter turning it on by setting that > flag. Wouldn't it be better to just get this bug fixed? IOW, is there a reason for disabling ALPM if it's Bug Free? I'd suggest committing the patch disabling IPM, then Kristen can debug the thing in piece in quiet. Once confident it works with ahci again, we can revert that commit. -- Jens Axboe - 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/