From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bartlomiej Zolnierkiewicz Subject: Re: cmd64x: irq 14: nobody cared - system is dreadfully slow Date: Sun, 21 Jun 2009 17:43:09 +0200 Message-ID: <200906211743.09840.bzolnier@gmail.com> References: <200906202352.33894.elendil@planet.nl> <20090620.171945.140676687.davem@davemloft.net> Mime-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20090620.171945.140676687.davem@davemloft.net> Content-Disposition: inline Sender: sparclinux-owner@vger.kernel.org To: David Miller Cc: elendil@planet.nl, sparclinux@vger.kernel.org, linux-ide@vger.kernel.org List-Id: linux-ide@vger.kernel.org On Sunday 21 June 2009 02:19:45 David Miller wrote: > Actually... the patch doesn't revert cleanly. Let me setup a > patch to test by hand. It just removes the IDE_HFLAG_SERIALIZE > flag from the chipset array entry. We still need to fix the root cause of "screaming IRQ" but in the meantime could you resend with your S-o-B (now that Frans has tested it)? > diff --git a/drivers/ide/cmd64x.c b/drivers/ide/cmd64x.c > index 80b777e..f98ba24 100644 > --- a/drivers/ide/cmd64x.c > +++ b/drivers/ide/cmd64x.c > @@ -425,8 +425,7 @@ static const struct ide_port_info cmd64x_chipsets[] __devinitdata = { > .enablebits = {{0x51,0x04,0x04}, {0x51,0x08,0x08}}, > .port_ops = &cmd64x_port_ops, > .dma_ops = &cmd648_dma_ops, > - .host_flags = IDE_HFLAG_SERIALIZE | > - IDE_HFLAG_ABUSE_PREFETCH, > + .host_flags = IDE_HFLAG_ABUSE_PREFETCH, > .pio_mask = ATA_PIO5, > .mwdma_mask = ATA_MWDMA2, > .udma_mask = ATA_UDMA2,