Public bug reported: Reading data from a 16GB SD card produces a lot of the following error and corrupts the data read. Sometimes I see this as an occasional messed up photo which works perfectly on a later read, and sometimes the whole directory structure is broken (permissions, names, etc).
[68316.256729] ------------[ cut here ]------------ [68316.256737] WARNING: at /build/buildd/linux-3.0.0/drivers/mmc/host/sdhci.c:794 sdhci_prepare_data+0x391/0x400 [sdhci]() [68316.256738] Hardware name: 42914CG [68316.256739] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat mmc_block cdc_acm usb_storage uas openafs(P) bnep rfcomm pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv parport_pc ppdev snd_hda_codec_hdmi snd_hda_codec_conexant joydev nfsd nfs lockd fscache auth_rpcgss nfs_acl binfmt_misc sunrpc thinkpad_acpi snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi arc4 snd_seq_midi_event snd_seq snd_timer snd_seq_device snd iwlagn tpm_tis wmi i915 nvram mac80211 drm_kms_helper drm btusb psmouse uvcvideo soundcore i2c_algo_bit snd_page_alloc videodev cfg80211 v4l2_compat_ioctl32 serio_raw mei(C) video bluetooth lp parport sdhci_pci sdhci ahci libahci e1000e xhci_hcd [68316.256772] Pid: 1249, comm: mmcqd/0 Tainted: P WC 3.0.0-20-generic #34-Ubuntu [68316.256774] Call Trace: [68316.256779] [<ffffffff8105e8df>] warn_slowpath_common+0x7f/0xc0 [68316.256782] [<ffffffff8105e93a>] warn_slowpath_null+0x1a/0x20 [68316.256786] [<ffffffffa0066f21>] sdhci_prepare_data+0x391/0x400 [sdhci] [68316.256791] [<ffffffffa00670ac>] sdhci_send_command+0x11c/0x240 [sdhci] [68316.256795] [<ffffffffa0067723>] sdhci_request+0xb3/0x180 [sdhci] [68316.256797] [<ffffffff814b667c>] mmc_start_request+0xcc/0xf0 [68316.256799] [<ffffffff814b66dd>] mmc_wait_for_req+0x3d/0x50 [68316.256802] [<ffffffffa0580e98>] mmc_blk_issue_rw_rq+0x298/0x820 [mmc_block] [68316.256805] [<ffffffff814b6c60>] ? mmc_request_done+0xa0/0xa0 [68316.256808] [<ffffffffa05814e2>] mmc_blk_issue_rq+0xc2/0x170 [mmc_block] [68316.256811] [<ffffffff812d2b03>] ? blk_start_request+0x33/0x50 [68316.256814] [<ffffffffa0582069>] mmc_queue_thread+0xa9/0x110 [mmc_block] [68316.256817] [<ffffffffa0581fc0>] ? mmc_blk_probe+0x230/0x230 [mmc_block] [68316.256820] [<ffffffff8108142c>] kthread+0x8c/0xa0 [68316.256824] [<ffffffff815fdc64>] kernel_thread_helper+0x4/0x10 [68316.256827] [<ffffffff810813a0>] ? flush_kthread_worker+0xa0/to 0xa0 [68316.256830] [<ffffffff815fdc60>] ? gs_change+0x13/0x13 [68316.256831] ---[ end trace 9e04b7dd2432a0c6 ]--- [68316.286028] DMA: Out of SW-IOMMU space for 65536 bytes at device 0000:0d:00.0 [68316.286030] ------------[ cut here ]------------ If I try to copy a lot of data, lots of the errors are produced and the system response, including mouse cursor movement, becomes very slow. There are mentions of the same/a similar bug back in the 2007-2009 area for an older kernel, that had something to do with having more than 4GB of RAM (This machine has 8GB): https://bugzilla.redhat.com/show_bug.cgi?id=478567 That was apparently fixed in 2.6.27.12 and this is 3.0.0-20. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-image-3.0.0-20-generic 3.0.0-20.34 ProcVersionSignature: Ubuntu 3.0.0-20.34-generic 3.0.30 Uname: Linux 3.0.0-20-generic x86_64 NonfreeKernelModules: openafs AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.23-0ubuntu4 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: oliford 1868 F.... xfce4-volumed oliford 1961 F.... pulseaudio /dev/snd/controlC29: oliford 1868 F.... xfce4-volumed CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xf2620000 irq 51' Mixer name : 'Intel CougarPoint HDMI' Components : 'HDA:14f1506e,17aa21da,00100002 HDA:80862805,80860101,00100000' Controls : 20 Simple ctrls : 8 Card29.Amixer.info: Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown' Mixer name : 'ThinkPad EC (unknown)' Components : '' Controls : 1 Simple ctrls : 1 Card29.Amixer.values: Simple mixer control 'Console',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] Date: Sun May 20 09:43:39 2012 HibernationDevice: RESUME=UUID=46e4abfa-a204-46df-bad2-f9711e8f0b99 InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) MachineType: LENOVO 42914CG ProcEnviron: SHELL=/bin/bash PATH=(custom, no user) LANG=en_US.UTF-8 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-20-generic root=UUID=1a73e8e3-4715-4635-95aa-28811013a65e ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.0.0-20-generic N/A linux-backports-modules-3.0.0-20-generic N/A linux-firmware 1.60.1 SourcePackage: linux StagingDrivers: mei UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/01/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 8DET56WW (1.26 ) dmi.board.asset.tag: Not Available dmi.board.name: 42914CG dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr8DET56WW(1.26):bd12/01/2011:svnLENOVO:pn42914CG:pvrThinkPadX220:rvnLENOVO:rn42914CG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 42914CG dmi.product.version: ThinkPad X220 dmi.sys.vendor: LENOVO ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: amd64 apport-bug oneiric staging -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1001871 Title: 'DMA: Out of SW-IOMMU space' errors using SD cards on Thinkpad X220 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1001871/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
