** Changed in: linux (Ubuntu)
Importance: Medium => Low
** Changed in: hwe-next
Importance: Medium => Low
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Title:
O2 Micro cardreader [121
attachment comment15-150416-log.tar.gz was collected by:
1. dpkg -i the debs provided in the comment 15
2. reboot
3. insert a mmc which could NOT reproduce this issue. collect dmesg
4. insert a mmc which could reproduce this issue (the transcend one). collect
dmesg
in attachment:
dpkg-l-* - me
I also tried the trans mmc which could reproduce this bug on CID 201401-14493,
on another 14.04.1 system.
This mmc could be read and written data normally.
dmesg-working-trans.log is the dmesg collected by that 14.04.1 system for your
reference.
** Attachment added: "dmesg-working-trans.log"
@Taihsiang
Please test with this debug kernel:
http://kernel.ubuntu.com/~adamlee/lp1397285_debug It will fail, but
dmesg will show lots of debugging informations we need. Thanks!
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picture for comment 13 - the transcend mmc card which could reproduce
this bug.
** Attachment added: "2015-03-09 16.00.10.jpg"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1397285/+attachment/4338636/+files/2015-03-09%2016.00.10.jpg
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> I read the bug description and find below info:
>
> (1) The original error log is:
>
>
> [ 41.180392] mmc0: Got data interrupt 0x0200 even though no data
> operation was in progress.
> [ 51.210537] mmc0: Timeout waiting for hardware interrupt.
> [ 51.212627] mmc0: G
test steps:
1. plugin the transcend mmc which reproduces this bug.
2. plug-out mmc in step 1, plugin the other mmc which does not reproduce this
bug.
3. plug-out mmc in step 2, re-plugin the transcend mmc in step 1.
result:
(tested with kernel 3.13.0-32)
the transcend mmc could now be read.
(te
** Attachment added: "dmesg-for-comment-8-transcend-mmc.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1397285/+attachment/4335899/+files/dmesg-for-comment-8-transcend-mmc.log
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** Attachment added: "dmesg-for-comment-8-plug-a-workable-card.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1397285/+attachment/4335900/+files/dmesg-for-comment-8-plug-a-workable-card.log
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tested the comment #8, the issue could be reproduced.
attachment:
dmesg-for-comment-8-transcend-mmc.log - dmesg when reproducing this issue by
the transcend mmc.
dmesg-for-comment-8-plug-a-workable-card - dmesg when NOT reproducing (mmc
could be read) this issue by the other mmc card.
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You r
O2Micro engineer confirmed it's a known issue, please test this kernel:
http://kernel.ubuntu.com/~adamlee/lp1397285/
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Title:
O2 Micro cardreader
I tried mainline 3.19 kernel and could reproduce as same as
"This issue could reproduce by a transcend mmc but not by another unknown brand
mmc."
described in comment #6
-
Besides, there are other interesting tests I have done:
a transcend mmc could reproduce this iss
This issue could reproduce by a transcend mmc but not by another unknown
brand mmc.
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Title:
O2 Micro cardreader [1217:8621] could not read mmc ca
** Changed in: hwe-next
Status: In Progress => Triaged
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Title:
O2 Micro cardreader [1217:8621] could not read mmc cards
To manage notific
I would like to know the testing results of #3 and #4 too, @Taihsiang
Ho, could you please? thanks.
** Changed in: linux (Ubuntu)
Status: Incomplete => Triaged
** Changed in: hwe-next
Status: New => In Progress
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** Summary changed:
- O2 Micron cardreader [1217:8621] could not read mmc cards
+ O2 Micro cardreader [1217:8621] could not read mmc cards
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Title:
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