Hi all, Hopefully this is the right place for this. Maybe it should go to a list more related to the at91 stuff. Please tell me if that is the case. I'm not subscribed so please CC me. I have an Atmel sam9g45 based machine that has been running 3.4.0-rc4 for a long time without any major issues. I decided to try out 3.8 this weekend and now have some issues using a SD card via the atmel-mci driver. It seems whenever something does a lot of transfers that the card stops working; root@ein:~# hdparm -Tt /dev/mmcblk0 /dev/mmcblk0: Timing cached reads: 106 MB in 2.00 seconds = 52.94 MB/sec Timing buffered disk reads: [ 1422.480000] mmcblk0: error -115 sending stop command, original cmd response 0x900, card status 0xb00 [ 1422.480000] mmcblk0: error -110 transferring data, sector 54784, nr 256, cmd response 0x900, card status 0xb00 [ 1422.480000] mmcblk0: retrying using single block read [ 1424.490000] mmcblk0: error -110 transferring data, sector 54784, nr 256, cmd response 0x900, card status 0x0 [ 1424.500000] end_request: I/O error, dev mmcblk0, sector 54784 [ 1426.890000] mmcblk0: error -110 transferring data, sector 54785, nr 255, cmd response 0x900, card status 0x0 [ 1426.900000] end_request: I/O error, dev mmcblk0, sector 54785 I'm not sure what is triggering the issue. Sometimes the machine will boot into Debian and run for a while without issue and sometimes it will start playing up just after init starts. One thing I have noticed is that if I can actually manage to warm reboot the machine and boot back into the working 3.4.0-rc4 kernel the same issue starts happening there too. I thought it could be because of the SD failing so I tried another card I had around and I bought a new card today. There didn't seem to be any change with either card. I'm not familiar with the mmc subsystem at all so I don't know where to start on debugging this. I have the mmc debugging option turned on and can see lots of output about the states the driver is going through but I couldn't see anything that suggested why it is failing. Any pointers on how to approach fixing this would be appreciated. Cheers, Daniel -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
