Public bug reported:
Binary package hint: linux-image-2.6.27-3-generic
When plugging in an ext3-formatted 8GB SDHC card into my 5-in-1 card reader
built into my laptop, I receive the following errors in dmesg:
[ 592.358413] mmc0: new SDHC card at address 0002
[ 592.401950] mmcblk0: mmc0:0002 SD8GB 7929856KiB
[ 592.402011] mmcblk0: p1
[ 592.826758] mmcblk0: error -110 transferring data
[ 592.826771] end_request: I/O error, dev mmcblk0, sector 15859648
[ 592.826779] Buffer I/O error on device mmcblk0, logical block 1982456
[ 593.083043] mmcblk0: error -110 transferring data
[ 593.083051] end_request: I/O error, dev mmcblk0, sector 15859648
[ 593.083057] Buffer I/O error on device mmcblk0, logical block 1982456
[ 593.467808] mmcblk0: error -110 transferring data
[ 593.467821] end_request: I/O error, dev mmcblk0, sector 15859648
[ 593.467828] Buffer I/O error on device mmcblk0, logical block 1982456
[ 593.724079] mmcblk0: error -110 transferring data
[ 593.724092] end_request: I/O error, dev mmcblk0, sector 15859648
[ 593.724100] Buffer I/O error on device mmcblk0, logical block 1982456
[ 593.994347] kjournald starting. Commit interval 5 seconds
[ 594.008261] EXT3 FS on mmcblk0p1, internal journal
[ 594.008269] EXT3-fs: mounted filesystem with ordered data mode.
The card seems to work fine (hdparm -t gives me ~7.5MB speed, which is
good), but I don't understand what the errors are all about and I don't
want me SDHC card to get corrupted.
lspci gives me (only relevant shown):
09:01.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 05)
09:01.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host
Adapter (rev 22)
09:01.2 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter
(rev 12)
09:01.3 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 12)
I first noticed this in kernel 2.6.24-19-generic under Hardy (bug
#247819), so I ran Intrepid Alpha 5 and found it still to be an issue,
so I opened a new bug for the 2.6.27 kernel, as instructed in a post for
the Hardy bug.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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SDHC card reader I/O errors in Intrepid (Alpha 5)
https://bugs.launchpad.net/bugs/271349
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