Blackgr, lastly, could you please test the latest mainline kernel
(4.4-rc4) and advise to the results?
** Tags removed: needs-bisect
** Tags added: bisect-done
** Summary changed:
- SD card reader on Dell E7450 doesn't work in Ubuntu 15.10 - O2 Micro, Inc.
SD/MMC Card Reader Controller [1217:85
Can verify that after removing the following bit and recompiled the
kernel, the SD card reader played fine.
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index b3b0a3e..27b0e11 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -618,7 +618,7
** Summary changed:
- SD card reader on Dell E7450 doesn't work in Ubuntu 15.10
+ SD card reader on Dell E7450 doesn't work in Ubuntu 15.10 - O2 Micro, Inc.
SD/MMC Card Reader Controller [1217:8520]
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** Attachment added: "bisect_Ubuntu-4.2.0-19.23_Ubuntu-4.1.0-3.3.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1523178/+attachment/4532175/+files/bisect_Ubuntu-4.2.0-19.23_Ubuntu-4.1.0-3.3.log
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Hello Christopher,
Thanks for the tips. Please refer to the bisect log
git bisect start 'Ubuntu-4.2.0-19.23' 'Ubuntu-4.1.0-3.3'
# good: [b953c0d234bc72e8489d3bf51a276c5c4ec85345] Linux 4.1
git bisect good b953c0d234bc72e8489d3bf51a276c5c4ec85345
# good: [3d9f96d850e4bbfae24dc9aee03033dd77c81596]
Blackgr, the next step is to fully commit bisect from kernel 4.1.8 to
4.1.9 in order to identify the last good kernel commit, followed
immediately by the first bad one. This will allow for a more expedited
analysis of the root cause of your issue. Could you please do this
following https://wiki.ubu
Thank you Christopher for the feedback,
I just tested the latest upstream kernel ap per your instructions and I still
get the same errors.
$ uname -a
Linux cosmo 4.4.0-040400rc3-generic #201511300321 SMP Mon Nov 30 03:23:36 UTC
2015 x86_64 x86_64 x86_64 GNU/Linux
** Tags added: kernel-bug-exist
Blackgr, thank you for reporting this and helping make Ubuntu better.
Could you please test the latest upstream kernel available from the very
top line at the top of the page from http://kernel.ubuntu.com/~kernel-
ppa/mainline/?C=N;O=D (the release names are irrelevant for testing, and
please do n
