Public bug reported:

The content of files copied from an SD card using the internal card
reader are corrupt. There are no error messages in /var/log/syslog or
/var/log/messages. dmesg output from the point the card is inserted
until it is ejected also looks fine:

[45149.636685] mmc0: new SDHC card at address d555
[45149.666063] mmcblk0: mmc0:d555 SD08G 7.60 GiB 
[45149.666123]  mmcblk0: p1
[46906.810148] mmc0: card d555 removed

The SD card itself is fine, since I can copy the files using a USB card
reader. dmesg output when using the USB card reader:

[46947.622591] usb 1-2: new high speed USB device using ehci_hcd and address 4
[46947.832723] Initializing USB Mass Storage driver...
[46947.832835] scsi5 : usb-storage 1-2:1.0
[46947.832917] usbcore: registered new interface driver usb-storage
[46947.832919] USB Mass Storage support registered.
[46948.831862] scsi 5:0:0:0: Direct-Access     SanDisk  SDDR-113         9412 
PQ: 0 ANSI: 0
[46948.833175] sd 5:0:0:0: Attached scsi generic sg2 type 0
[46948.972839] sd 5:0:0:0: [sdb] 15954944 512-byte logical blocks: (8.16 
GB/7.60 GiB)
[46948.974201] sd 5:0:0:0: [sdb] Write Protect is off
[46948.974209] sd 5:0:0:0: [sdb] Mode Sense: 03 00 00 00
[46948.974215] sd 5:0:0:0: [sdb] Assuming drive cache: write through
[46948.978078] sd 5:0:0:0: [sdb] Assuming drive cache: write through
[46948.978090]  sdb: sdb1
[46948.982665] sd 5:0:0:0: [sdb] Assuming drive cache: write through
[46948.982675] sd 5:0:0:0: [sdb] Attached SCSI removable disk
[48151.458440] usb 1-2: USB disconnect, address 4

My problem looks similar to bug #262204. The difference is that at that
time my card reader worked fine. This might be a regression since
installing 10.10, but I'm not sure exactly when the internal card reader
stopped working.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-generic 2.6.35.22.23
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-22.35-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  udi        1554 F.... pulseaudio
 /dev/snd/pcmC0D0p:   udi        1554 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf4600000 irq 48'
   Mixer name   : 'Nvidia MCP77/78 HDMI'
   Components   : 'HDA:10ec0662,15580860,00100101 
HDA:10573055,00305557,00100900 HDA:10de0005,10de0101,00100000'
   Controls      : 28
   Simple ctrls  : 15
Date: Tue Nov 16 20:27:11 2010
HibernationDevice: RESUME=UUID=3d13dcef-1b8c-41d9-bada-a585b4022a2d
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MachineType: System76, Inc. Serval Professional
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic 
root=UUID=239903ef-350d-408a-8b2c-defeea028fe0 ro quiet splash
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38
RfKill:
 0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
SourcePackage: linux
UserAsoundrc:
 pcm.bluetooth {
    type bluetooth
    device 00:1A:80:47:93:67
    profile "auto"
 }
dmi.bios.date: 12/01/2008
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: 1.01.13
dmi.board.asset.tag: Tag 12345
dmi.board.name: Serval Professional
dmi.board.vendor: System76, Inc.
dmi.board.version: serp5
dmi.chassis.asset.tag: Serval Professional
dmi.chassis.type: 9
dmi.chassis.vendor: System76, Inc.
dmi.chassis.version: serp5
dmi.modalias: 
dmi:bvnPhoenixTechnologiesLTD:bvr1.01.13:bd12/01/2008:svnSystem76,Inc.:pnServalProfessional:pvrserp5:rvnSystem76,Inc.:rnServalProfessional:rvrserp5:cvnSystem76,Inc.:ct9:cvrserp5:
dmi.product.name: Serval Professional
dmi.product.version: serp5
dmi.sys.vendor: System76, Inc.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug kernel-fs maverick needs-upstream-testing

-- 
File from internal SD card reader corrupt with no error messages
https://bugs.launchpad.net/bugs/676350
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