Public bug reported:

I have a SD card reader inside my laptop that work correctly with
Windows XP. With Linux ubuntu Gutsy, it also worked correctly. Now with
Hardy 2.6.24-10 kernel, The SD card reader will just work once, if I
remove the SD card and put it back, it does not mount again and dmesg
gets these outputs :

[  155.963267] mmc0: card 3542 removed
[  155.963786] mmcblk0: error -123 sending read/write command
[  155.963807] end_request: I/O error, dev mmcblk0, sector 396546
[  155.963815] Buffer I/O error on device mmcblk0p1, logical block 396303
[  155.963820] lost page write due to I/O error on mmcblk0p1
[  155.963831] end_request: I/O error, dev mmcblk0, sector 396547
[  155.963836] Buffer I/O error on device mmcblk0p1, logical block 396304
[  155.963841] lost page write due to I/O error on mmcblk0p1
[  155.963847] end_request: I/O error, dev mmcblk0, sector 396548
[  155.963852] Buffer I/O error on device mmcblk0p1, logical block 396305
[  155.963857] lost page write due to I/O error on mmcblk0p1
[  155.963862] end_request: I/O error, dev mmcblk0, sector 396549
[  155.963868] Buffer I/O error on device mmcblk0p1, logical block 396306
[  155.963873] lost page write due to I/O error on mmcblk0p1
[  297.546325] mmc0: new SD card at address 3542
[  297.547139] mmcblk0: mmc0:3542 SD01G 1006080KiB 
[  297.547193]  mmcblk0: p1

03:01.2 SD Host controller [0805]: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro 
Host Adapter [1180:0822] (rev 17) (prog-if 01)
        Subsystem: Dell Unknown device [1028:0189]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR+ FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 64
        Interrupt: pin C routed to IRQ 18
        Region 0: Memory at dfcfc700 (32-bit, non-prefetchable) [size=256]
        Capabilities: <access denied>

Linux zxz-laptop 2.6.24-10-generic #1 SMP Fri Feb 22 19:08:18 UTC 2008
i686 GNU/Linux

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

-- 
[hardy] regression SD card does not mount Dell Inspiron 9300
https://bugs.launchpad.net/bugs/199215
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