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Jirka

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  1. We build our own kernel so updated git is ok. Thank you.
  2. We found that described behavior is caused by https://github.com/armbian/build/blob/master/patch/kernel/odroidc2-default/remove-emmc-calibration.patch . When calibration is disabled it causes instability of some boards.
  3. Hello, we are testing set of 50devices and on 20%-30% of them we are detecting errors, which seems as hardware issues with eMMC cards. Issues looks very similar to us. Example of device usage is: 1) device boots operating system (Armbian GNU/Linux kernel 3.14.79-odroidc2), 2) device works as expected for hours/days, 3) system logs starts containing emmc errors, 4) system freezes with console message: Message from syslogd@avast-hkc213254dfea768 at Feb 14 13:49:58 ... kernel:[189164.931207] Disabling IRQ #250 After consultation with Hardkernel we tried theirs ubuntu image and it looks better. After 4 hour test we do not detect broken card (test continues), with Armbian we had first issue after few minutes. Can you help us? Reference to Hardkernel forum post https://forum.odroid.com/viewtopic.php?f=139&t=30244 Thank you
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