Tony, > On Jan 3, 2017, at 11:30 AM, Tony Anderson <tony_ander...@usa.net> wrote: > > I have spent hours in the past few days coping with io failures while > installing rpms and copying large files from usb sticks. The problem has also > affects sd cards.
Which XO hardware version? 1? Which OLPC OS/kernel version? These are critical pieces of information which have not been included. Also, when you say “Sugar 0.110” do you actually mean OLPC OS 13.2.8? > > The symptom is that during an extended io operation, the usb stick generates > io errors. An 'ls' on the folder shows it to be empty. After a cd ../ and a > cd back to the folder, the ls shows the contents. This failure has been seen > on an sd card as well. It does not occur during flash so the firmware appears > unaffected. Since the io recovers, it is not a simple 'umount'. > > My theory is that the problem is related to the power settings. The > gsettings: org.sugarlabs.power automatic claims the default to be false. > However, in 0.110 it is set to true. One basis for the theory is that when > the script appears stalled, hitting the enter key seems to move it forward > (awaking the system?). > > After resetting the value to false, access to usb devices appears more > reliable but there has been at least one script failure that may be due to > this problem. > > Since the problem seems to be related to extended io operations when there is > no interactive use of the keyboard or trackpad, this could have devastating > consequences for use of an XO as a server. > > Tony > _______________________________________________ Sugar-devel mailing list Sugar-devel@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel
