Per penalvch's recommendation :
Installed latest upstream kernel
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7-rc7
and booted.
Still exhibits bug
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It looks like the offending commit only removes the BROKEN dependency
from the Kconfig uas build.
Not entirely sure the consequnecs of this , does this simply tell the kernel to
use uas ?
Maybe need to dig in and look at the low level protocols and id what is choking
up the driver, per arch linu
Sorry disregard last comment ... bug in a script, I was one commit off:
dc88608dba784f902b3127fd68d0c4f92a532cd0 is the first bad commit
commit dc88608dba784f902b3127fd68d0c4f92a532cd0
Author: Gerd Hoffmann
Date: Fri Sep 13 13:27:15 2013 +0200
uas: remove BROKEN
xhci streams suppo
Finished bisect :
f50a4968deb7bf38c46f5baf62db9431a099531a is the first bad commit
commit f50a4968deb7bf38c46f5baf62db9431a099531a
Author: Hans de Goede
Date: Mon Oct 28 10:48:04 2013 +
uas: Add Hans de Goede as uas maintainer
At the kernel-summit Sarah Sharp asked me if I was
Same issue:
https://bbs.archlinux.org/viewtopic.php?id=183190
https://bbs.archlinux.org/viewtopic.php?pid=1428782#p1428782
workaround that seems to work for all versions is to
add a conf file to /etc/modprobe.d, with this line
options usb-storage quirks=0bc2:ab24:u
not done with the bisect
Update : Still working this ... it is taking longer than I had hoped.
I feel like a dummy but I am having issues building the older kernels
from git.
The 4.4.13 and the 4.7rc6 built and ran, no problem
but during the bisect building the 3.13.0-24.47 to 3.15.0-1.3 kernels have been
an issue.
Usi
Still working it but here is the status on the bisect ...
Ubuntu 14.04 Latest Kernel = Good
Ubuntu 14.10 latest kernel = Bad
Breakdown of distro 14.10
kernel version 3.13.0-24.46 = good
kernel version 3.13.0-24.47 = good
kernel version 3.15.0-1.3 = bad, next into the commit tree
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Using Ubuntu 14.04 : kernel 3.13.0-24 successfully mounts the drive.
In the original post : "This works correctly in Ubuntu 14.04 on a VM and
vanilla kernel 4.4.13."
Should have read : "This works correctly in Ubuntu 14.04 on a VM using kernel
3.13.0-24.
Another data point, possibly relevant, in
Per penalvch's recommendation :
Installed latest upstream kernel
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7-rc6-yakkety/
and booted.
Still exhibits bug
dmesg :
[ 28.340550] usb 2-1: new SuperSpeed USB device number 2 using xhci_hcd
[ 28.362325] usb 2-1: New USB device found, idVendor
Public bug reported:
Connecting USB 3.0 external drive does not mount seems to choke at kernel level
dmesg shows incomplete loading, never gets a device assigned.
look at usb 4-1 in dmesg
Running on 16,04 latest on vmware fusion on an apple mac book pro,
confirmed works correctly in ubuntu 14.0
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