From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: [Bugme-new] [Bug 15656] New: System sluggish when using ENE SD card reader Date: Thu, 1 Apr 2010 15:30:35 -0700 Message-ID: <20100401153035.8668b681.akpm@linux-foundation.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from smtp1.linux-foundation.org ([140.211.169.13]:55155 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756677Ab0DAWbQ (ORCPT ); Thu, 1 Apr 2010 18:31:16 -0400 In-Reply-To: Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: linux-mmc@vger.kernel.org Cc: bugzilla-daemon@bugzilla.kernel.org, bugme-daemon@bugzilla.kernel.org, theholyettlz@googlemail.com (switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). On Wed, 31 Mar 2010 11:09:28 GMT bugzilla-daemon@bugzilla.kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=15656 > > Summary: System sluggish when using ENE SD card reader > Product: Drivers > Version: 2.5 > Kernel Version: 2.6.33 and earlier > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: MMC/SD > AssignedTo: drivers_mmc-sd@kernel-bugs.osdl.org > ReportedBy: theholyettlz@googlemail.com > Regression: No > > > My system becomes incredibly sluggish (jerky X cursor, choppy audio) when > accessing an SD card with my notebook's built-in ENE card reader. The kernel > was compiled with full pre-emption enabled. > > >From lspci -nn: > > > 0c:07.0 FLASH memory [0501]: ENE Technology Inc ENE PCI Memory Stick Card > Reader Controller [1524:0730] > 0c:07.1 SD Host controller [0805]: ENE Technology Inc ENE PCI SmartMedia / xD > Card Reader Controller [1524:0750] > 0c:07.3 FLASH memory [0501]: ENE Technology Inc ENE PCI Secure Digital / MMC > Card Reader Controller [1524:0751] > > > >From dmesg|grep sdhci, > > > sdhci: Secure Digital Host Controller Interface driver > sdhci: Copyright(c) Pierre Ossman > sdhci-pci 0000:0c:07.1: SDHCI controller found [1524:0750] (rev 0) > sdhci-pci 0000:0c:07.1: PCI INT A -> GSI 16 (level, low) -> IRQ 16 > sdhci-pci 0000:0c:07.3: SDHCI controller found [1524:0751] (rev 0) > sdhci-pci 0000:0c:07.3: enabling device (0000 -> 0002) > sdhci-pci 0000:0c:07.3: PCI INT A -> GSI 16 (level, low) -> IRQ 16 > sdhci-pci 0000:0c:07.3: PCI INT A disabled > sdhci-pci 0000:0c:07.1: PCI INT A disabled > sdhci-pci 0000:0c:07.1: restoring config space at offset 0xf (was 0x482001ff, > writing 0x48200105) > sdhci-pci 0000:0c:07.1: restoring config space at offset 0x4 (was 0x0, writing > 0xf0f00400) > sdhci-pci 0000:0c:07.1: restoring config space at offset 0x3 (was 0x800000, > writing 0x802010) > sdhci-pci 0000:0c:07.1: restoring config space at offset 0x1 (was 0x2100000, > writing 0x2100106) > sdhci-pci 0000:0c:07.3: restoring config space at offset 0x4 (was 0x0, writing > 0xf0f00100) > sdhci-pci 0000:0c:07.3: restoring config space at offset 0x1 (was 0x2100000, > writing 0x2100002) > sdhci-pci 0000:0c:07.1: PCI INT A -> GSI 16 (level, low) -> IRQ 16 > sdhci-pci 0000:0c:07.3: PCI INT A -> GSI 16 (level, low) -> IRQ 16 > sdhci-pci 0000:0c:07.3: PCI INT A disabled > sdhci-pci 0000:0c:07.1: PCI INT A disabled > sdhci-pci 0000:0c:07.1: restoring config space at offset 0xf (was 0x482001ff, > writing 0x48200105) > sdhci-pci 0000:0c:07.1: restoring config space at offset 0x4 (was 0x0, writing > 0xf0f00400) > sdhci-pci 0000:0c:07.1: restoring config space at offset 0x3 (was 0x800000, > writing 0x802010) > sdhci-pci 0000:0c:07.1: restoring config space at offset 0x1 (was 0x2100000, > writing 0x2100106) > sdhci-pci 0000:0c:07.3: restoring config space at offset 0x4 (was 0x0, writing > 0xf0f00100) > sdhci-pci 0000:0c:07.3: restoring config space at offset 0x1 (was 0x2100000, > writing 0x2100002) > sdhci-pci 0000:0c:07.1: PCI INT A -> GSI 16 (level, low) -> IRQ 16 > sdhci-pci 0000:0c:07.3: PCI INT A -> GSI 16 (level, low) -> IRQ 16 > sdhci-pci 0000:0c:07.3: PCI INT A disabled > sdhci-pci 0000:0c:07.1: PCI INT A disabled > sdhci-pci 0000:0c:07.1: restoring config space at offset 0xf (was 0x482001ff, > writing 0x48200105) > sdhci-pci 0000:0c:07.1: restoring config space at offset 0x4 (was 0x0, writing > 0xf0f00400) > sdhci-pci 0000:0c:07.1: restoring config space at offset 0x3 (was 0x800000, > writing 0x802010) > sdhci-pci 0000:0c:07.1: restoring config space at offset 0x1 (was 0x2100000, > writing 0x2100106) > sdhci-pci 0000:0c:07.3: restoring config space at offset 0x4 (was 0x0, writing > 0xf0f00100) > sdhci-pci 0000:0c:07.3: restoring config space at offset 0x1 (was 0x2100000, > writing 0x2100002) > sdhci-pci 0000:0c:07.1: PCI INT A -> GSI 16 (level, low) -> IRQ 16 > sdhci-pci 0000:0c:07.3: PCI INT A -> GSI 16 (level, low) -> IRQ 16 > > > and finally dmesg|grep mmc: > > > sr0: scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray > Registered led device: mmc0:: > mmc0: SDHCI controller on PCI [0000:0c:07.1] using PIO > Registered led device: mmc1:: > mmc1: SDHCI controller on PCI [0000:0c:07.3] using PIO > mmc1: new high speed SDHC card at address 0007 > mmcblk0: mmc1:0007 SD16G 15.0 GiB > mmcblk0: p1 > SELinux: initialized (dev mmcblk0p1, type vfat), uses genfs_contexts > mmc1: card 0007 removed >