USB disk could not recovered from S4 state

Bug #228121 reported by Yu Ping
6
Affects Status Importance Assigned to Milestone
Ubuntu Mobile Edition
Incomplete
Critical
Unassigned

Bug Description

Description:
In our testing in UME beta3, before S4, we mount USB as /dev/sdb to /mnt/disk, and after S4 wake up, "df -k" shows that the /dev/sdb is still mounted in /mnt/disk, but the directory of /mnt/disk is empty. At the mean time, we notice that the USB disk device is turned to /dev/sdc.

Reproduce Steps:
(1)insert a USB disk
(2)mount the USB disk to /mnt/disk, for example, "mount /dev/sdb /mnt/disk"
(3)make the system go to S4
(4)wake up from S4
(5)check if the /mnt/disk is accessiable

Expected Result:
the orignal mounted disk is still mounted in the orignal mounted directory

Tags: moblin
David Mandala (davidm)
Changed in ubuntu-mobile:
assignee: nobody → amitk
Chris Gregan (cgregan)
Changed in ubuntu-mobile:
importance: Undecided → Critical
status: New → Confirmed
David Mandala (davidm)
Changed in ubuntu-mobile:
status: Confirmed → In Progress
Revision history for this message
Amit Kucheria (amitk) wrote :

Does this work correctly on the moblin kernel?

I believe this is related to USB_PERSIST patches upstream, have any of them been applied to moblin?

Amit Kucheria (amitk)
Changed in ubuntu-mobile:
status: In Progress → Incomplete
Revision history for this message
Amit Kucheria (amitk) wrote :

Removing myself from this. I can't seem to close this bug.

Changed in ubuntu-mobile:
assignee: Amit Kucheria (amitk) → nobody
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