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Author Topic: Problem with SD card  (Read 4220 times)

richarddmorey

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Problem with SD card
« on: 17 February 2014, 09:01:56 pm »

All of the sudden, my Sheevaplug (Model 003-SP1001) is not working correctly. It can boot off the SD card (same SD card has worked for years), but after a certain amount of time (few minutes after boot) I get a constant stream of errors in the console like the following:
Quote
[  552.701474] mvsdio mvsdio: FIFO_EMPTY bit missing
[  552.707145] mmcblk0: error -110 sending read/write command, response 0x400b00, card status 0x400b00
[  552.716264] end_request: I/O error, dev mmcblk0, sector 1814655
[  552.722383] EXT3-fs error (device mmcblk0p2): ext3_get_inode_loc: unable to read inode block - inode=41978, block=164367
[  553.741441] mvsdio mvsdio: FIFO_EMPTY bit missing
[  553.748233] mmcblk0: retrying using single block read
[  554.761408] mvsdio mvsdio: FIFO_EMPTY bit missing

and

Quote
[  322.784450] mmcblk0: error -110 sending read/write command, response 0x400b00, card status 0x400b00
[  322.793563] end_request: I/O error, dev mmcblk0, sector 7899839
[  323.808707] mvsdio mvsdio: FIFO_EMPTY bit missing
[  323.814564] mmcblk0: error -110 sending read/write command, response 0x400b00, card status 0x400b00
[  324.828675] mvsdio mvsdio: FIFO_EMPTY bit missing
[  324.834238] end_request: I/O error, dev mmcblk0, sector 2073168
[  324.840189] Buffer I/O error on device mmcblk0p2, logical block 196682
[  324.846749] lost page write due to I/O error on mmcblk0p2
[  324.852182] end_request: I/O error, dev mmcblk0, sector 2073176
[  324.858131] Buffer I/O error on device mmcblk0p2, logical block 196683
[  324.864686] lost page write due to I/O error on mmcblk0p2

The card checks out on another machine, and I fsck'ed the file systems on the card to ensure they were OK, and there were no errors. Is this a hardware issue? Or perhaps something (heat?) is causing some sort failure contact with the card, after a certain amount of time?

My server has been down for a while, and I'd like to get it back up again; any help would be appreciated. The SD card I've been using since I got the Sheeva plug years ago is a Sandisk Ultra 8GB SDHC card.
 
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Confusticated

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Re: Problem with SD card
« Reply #1 on: 18 February 2014, 05:30:58 pm »

Quote
same SD card has worked for years
SD Cards will not last for ever, the more they are written to, the faster they wear out.

Quote
I fsck'ed the file systems on the card to ensure they were OK
An fsck will check the integrity of the file system, but not the integrity of the SD Card, did you try writing to it ?

Quote
some sort failure contact with the card
Certainly a possibility, it has happened to both me and others (search the forum).

Try cleaning the SD Card contacts with a pencil (not ink) eraser, you may have to shape it first with a scalpel.
I also use an old SD Card onto which I liberally spray contact cleaner and then repeatedly rapidly insert & eject from the plug in an attempt to clean the internal contacts.

Finally, you could clone the SD Card to a new one and then try that in the plug.
« Last Edit: 18 February 2014, 05:33:37 pm by Confusticated »
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