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AndrewX192 is offline AndrewX192
2011-03-20 , 01:53
Posts: 139 | Thanked: 97 times | Joined on Nov 2010 @ United States
#21
Originally Posted by N770-Freak View Post
I also bought a Patriot 32GB microsdhc class 10 card today.

So far I had not any issues (at least I didn't notice any). But looking into dmesg shows also a few lines with I/O errors:

Code:
[41945.280578] mmcblk1: error 1 sending read/write command, response 0x0, card status 0x900
[41945.280609] mmcblk1: error 1 transferring data, sector 59950448, nr 8, card status 0x900
[41945.280670] end_request: I/O error, dev mmcblk1, sector 59950448
[41945.280700] Buffer I/O error on device mmcblk1p2, logical block 414886
[41945.280731] lost page write due to I/O error on mmcblk1p2
Have you had any luck resolving your issue? I am going to have to downgrade to a class 6 or 4 if no fix can be found.
 
N770-Freak is offline N770-Freak
2011-03-20 , 07:14
Posts: 209 | Thanked: 31 times | Joined on Oct 2006
#22
Originally Posted by AndrewX192 View Post
Have you had any luck resolving your issue? I am going to have to downgrade to a class 6 or 4 if no fix can be found.
Actually these 4 error lines were the only ones until now. And I didn't notice any problems because of this error. The card is working since two days now.

I've downloaded a 700MB distro image over wlan to the sdhc and md5sum was ok. No errors occured. Reading from the card is also ok. No filesystem corruption.

If you have any specific usecase I should reproduce to force a filesystem corruption, I'll test it for you.

Maybe your card is faulty and you should replace it with another class 10 card.
 
AndrewX192 is offline AndrewX192
2011-03-20 , 07:20
Posts: 139 | Thanked: 97 times | Joined on Nov 2010 @ United States
#23
Originally Posted by N770-Freak View Post
Actually these 4 error lines were the only ones until now. And I didn't notice any problems because of this error. The card is working since two days now.

I've downloaded a 700MB distro image over wlan to the sdhc and md5sum was ok. No errors occured. Reading from the card is also ok. No filesystem corruption.

If you have any specific usecase I should reproduce to force a filesystem corruption, I'll test it for you.

Maybe your card is faulty and you should replace it with another class 10 card.
Can you try setting up an easydebian image on it, and do basic APT operations?
Also, I was able to get fs corruption when deleting files.
 
N770-Freak is offline N770-Freak
2011-03-20 , 07:34
Posts: 209 | Thanked: 31 times | Joined on Oct 2006
#24
Originally Posted by AndrewX192 View Post
Can you try setting up an easydebian image on it, and do basic APT operations?
Also, I was able to get fs corruption when deleting files.
Do you have some step by step instructions for setting up the easy debian image?
 
AndrewX192 is offline AndrewX192
2011-03-20 , 07:38
Posts: 139 | Thanked: 97 times | Joined on Nov 2010 @ United States
#25
Originally Posted by N770-Freak View Post
Do you have some step by step instructions for setting up the easy debian image?
The instructions on http://talk.maemo.org/showpost.php?p...4&postcount=29 should be sufficient.

If that looks like too much for you, just installing easydebian and placing the image on /media/mmc1, and running "apt-get update; apt-get install geany" inside the debian chroot should be enough to get I/O errors, and cause issues.''

I am currently testing copying an ubuntu livecd image to the microSD card over wifi, which seems to be going fine so far.

EDIT: Nitdroid is another thing which did not work for me on the microSD, you could try that if you want.
 
N770-Freak is offline N770-Freak
2011-03-20 , 10:37
Posts: 209 | Thanked: 31 times | Joined on Oct 2006
#26
Ok, I formated my 32GB class 10 card with ext2 (I did this on my PC). After putting the card into my N900, I started to copy (tar) the debian files to the card. But this process aborted quite soon (I/O error).

Doing the same steps with my 16GB class 6 card is no problem.

AndrewX192, the questions now really would be if this can be fixed with a kernel patch, or if this really is a hardware compatibility problem.
 
N770-Freak is offline N770-Freak
2011-03-20 , 11:05
Posts: 209 | Thanked: 31 times | Joined on Oct 2006
#27
Originally Posted by geneven View Post
I have Easy Debian installed on my Class 10 Sandisk 32 GB card. It works fine.
Where did you get this card? I can buy only a Sandisk 32GB Class 2 card! The Patriot card was the only card which was available as Class 10.
 
AndrewX192 is offline AndrewX192
2011-03-20 , 18:50
Posts: 139 | Thanked: 97 times | Joined on Nov 2010 @ United States
#28
Originally Posted by N770-Freak View Post
Ok, I formated my 32GB class 10 card with ext2 (I did this on my PC). After putting the card into my N900, I started to copy (tar) the debian files to the card. But this process aborted quite soon (I/O error).

Doing the same steps with my 16GB class 6 card is no problem.

AndrewX192, the questions now really would be if this can be fixed with a kernel patch, or if this really is a hardware compatibility problem.
Same issue then, I will likely downgrade as I do not have time to mess with this issue.
 
AndrewX192 is offline AndrewX192
2011-03-20 , 18:51
Posts: 139 | Thanked: 97 times | Joined on Nov 2010 @ United States
#29
Originally Posted by N770-Freak View Post
Where did you get this card? I can buy only a Sandisk 32GB Class 2 card! The Patriot card was the only card which was available as Class 10.
This is what I saw as well.
 
AndrewX192 is offline AndrewX192
2011-03-22 , 07:33
Posts: 139 | Thanked: 97 times | Joined on Nov 2010 @ United States
#30
I am going to downgrade my card to a class 6 or 4 now.
 
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