Dear All, I am using a ISEE Igepv2 CPU board, booting from microSD card. I am using SanDisk Extreme Pro 8GByte cards. I experience occasional hang-ups of the Linux system in different severity: 1.) System seems to hang for some seconds, but afterwards continues work with no kernel messages in this case 2.) kernel is putting out message: [ 4211.686096] mmcblk0: error -110 sending read/write command, response 0x900, card status 0xe00 [ 4211.701538] mmcblk0: error -110 transferring data, sector 674693, nr 42, card status 0xc00 Afterwards the Linux system is completely dead - no SSH, no ping, nothing. The problem occurs quite often -> every 4rd to 5th reboot after a few minutes working time. I have used the ISEE Igepv2 kernel 2.6.37-8 and Igep X-Loader 2.6.0-1 in this case with igep00x0-defconfig. Linux system is compiled, using the Pengutronix PTXDist 2011-11-0 cross compile environment I tried afterwards on same CPU board with Transcend Premium 8GByte cards with no problems. I tried with mainline kernel 3.15-rc4 and u-boot-2014-04 afterwards. Here I do not get the above messages, but still with some SanDisk cards I get a complete system hang-up. Same, with Transcend cards, or even some other SanDisk cards I do not have problems. The Linux images are duplicated using a script with parted, mkfs and tar to copy the images. Does anybody else already had such problems? best regards, Martin Wilde-- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html