Messages in this thread | | | Date | Sun, 4 Mar 2018 17:04:47 +0100 | From | Michal Suchánek <> | Subject | Re: [PATCH 1/2] mmc: bcm2835: reset host on timeout |
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Hello,
On Sat, 3 Mar 2018 14:58:45 +0100 (CET) Stefan Wahren <stefan.wahren@i2se.com> wrote:
> Hi Michal,
> yesterday i finished my stress tests with Raspberry Pi 3. > > Scenario: > - copy Tumbleweed on SD card > (openSUSE-Tumbleweed-ARM-JeOS-raspberrypi3.aarch64-2018.02.02-Build1.2.raw, > Linux 4.14.15) > - setup locales with yast > - run zypper update > - reboot > - install and remove java 1.8 in a loop for at least 1 hour
How many cycles does that perform?
> > Results of the different SD cards: > Toshiba uSDHC Class 10 UHS-1 32 GB: PASS > BASETech uSDHC Class 10 16 GB: PASS > Samsung uSDHC EVO+ UHS-1 16 GB: PASS > Samsung uSDHC Class 6 32 GB: PASS > SanDisk Edge Class 4 16 GB: PASS > Kingston uSDHC Class 10 UHS-1 32 GB: PASS > QUMOX uSDHC Class 10 UHS-1 16 GB: FAIL (zypper segfaulted > permantently)
It may very well segfault because the card disconnected due to the timeout and it is missing some pages of its code. It did for me as well without the workaround.
> Transcend uSDHC Class 10 UHS-1 32 GB: PASS > > I was never able to reproduce this timeout. So i still need the > feedback about the 4.15 and i a reliable test scenario.
You may very well never get any. AFAICT this is some kind of heisenbug in the hardware.
Thanks
Michal
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