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DM6446 SD Card Problem

Remony
Expert 1560 points

Hi,
I found the problem when I put a SD card into sd card connector or take out a SD card.
 
Sometimes when I insert a SD Card or take out SD Card, system down.
I think that kernel seems to down.
 
error message is shown below.
Did you find this problem?
Code: e59f3728 e5931070 e595300c e3510000 (e5933000)
 <0>Kernel panic - not syncing: Aiee, killing interrupt handler!
 
Buffer I/O error on device mmcblk0, logical block 0
 unable to read partition table
MMCSD : CMD-853607488, argument 0xcd1efbc0<7>mmc0 mmc0.1:


  • TI__Mastermind 41665 points

    I tried reproducing this issue with my DM6446 DVEVM board but was unable to get the same result, I am booting the kernel from DVSDK 1.30.01.41. I connected and disconnected the card several times and never received any kernel errors, it just keeps popping up a message from the driver confirming insertion:

    mmcblk0: mmc0:0002 SD    1966080KiB
     mmcblk0: p1 p2
    mmcblk0: mmc0:0002 SD    1966080KiB
     mmcblk0: p1 p2
    mmcblk0: mmc0:0002 SD    1966080KiB
     mmcblk0: p1 p2
    mmcblk0: mmc0:0002 SD    1966080KiB
     mmcblk0: p1 p2
    mmcblk0: mmc0:0002 SD    1966080KiB
     mmcblk0: p1 p2
    mmcblk0: mmc0:0002 SD    1966080KiB
     mmcblk0: p1 p2
    mmcblk0: mmc0:0002 SD    1966080KiB
     mmcblk0: p1 p2
    mmcblk0: mmc0:0002 SD    1966080KiB
     mmcblk0: p1 p2
    mmcblk0: mmc0:0002 SD    1966080KiB
     mmcblk0: p1 p2
    mmcblk0: mmc0:0002 SD    1966080KiB
     mmcblk0: p1 p2
    mmcblk0: mmc0:0002 SD    1966080KiB
     mmcblk0: p1 p2

    This could be some bug in the kernel drivers you are using, if you are not already using the latest DVSDK 1.30.01.41 you may want to give it a try (you can download newer DVSDK software from www.ti.com/davinciregistration). It could also be something specific about your SD card, in this case my card is a Micro Center 2GB card, it happens to be formatted with two partitions (FAT and NTFS) for the purposes of booting an OMAP3.