Deepak is in India. I have also been able to replicate the problem
using XOs manufactured in the same week (SN SHC037x). It's
probably easiest if I send my SD cards to James.
James, I'll contact you separately about this.
Regards,
Sridhar
On 14 July 2012 03:32, Martin Langhoff
Hi folks,
where is Deepak Muddhaa based? Any reason his failing XO and SD card
can't be traded for good ones, and the failing units shipped to James,
Miami or Boston, where we can look at things at a lower level?
We'll gladly provide a replacement unit.
I appreciate all the analysis, but it' is
On 21 June 2012 16:14, James Cameron qu...@laptop.org wrote:
On Thu, Jun 21, 2012 at 02:37:35PM +1000, Sridhar Dhanapalan wrote:
On 16 June 2012 17:08, James Cameron qu...@laptop.org wrote:
That means the hang should not exceed 15 seconds. ?Is this what you
find? ?If not, then this casts
Thanks for your reply!
On Mon, Jun 25, 2012 at 11:16:26AM +1000, Sridhar Dhanapalan wrote:
On 21 June 2012 16:14, James Cameron qu...@laptop.org wrote:
On Thu, Jun 21, 2012 at 02:37:35PM +1000, Sridhar Dhanapalan wrote:
On 16 June 2012 17:08, James Cameron qu...@laptop.org wrote:
That
On Thu, Jun 21, 2012 at 02:37:35PM +1000, Sridhar Dhanapalan wrote:
On 16 June 2012 17:08, James Cameron qu...@laptop.org wrote:
That means the hang should not exceed 15 seconds. ?Is this what you
find? ?If not, then this casts doubt on your solution.
I'm going to propose something
On 16 June 2012 17:08, James Cameron qu...@laptop.org wrote:
That means the hang should not exceed 15 seconds. Is this what you
find? If not, then this casts doubt on your solution.
I'm going to propose something extremely hackish: can we have the XO
perform a hard power-off if the software
G'day Anish,
I don't think you should conflate the shutdown issue with slower than
claimed microSD cards. The shutdown issue may be a symptom, combining
Fedora's assumptions about how quickly the kernel will finish writing
data, with the microSD cards being much slower than the hard disks the
I doubt that this issue is your problem. But in response to one remark:
On the theory that these writes may
be stalling due to the block number, (and we haven't seen any evidence
yet of this), you can test for that by repeating the writes...
There *is*
Hi Martin, James et. al.
It seems that the microSD card was definitely one of the main reasons
why the hang on shutdown was happening [1]
[1] http://dev.laptop.org.au/issues/1323
Cheers,
Anish
On Fri, Jun 15, 2012 at 7:45 AM, Anish Mangal an...@activitycentral.com wrote:
On Fri, Jun 15, 2012
I do not wish to constrain your investigation at all, please continue
investigating, but I do have some comments and speculations.
Yes, the microSD card cannot be excluded as a cause. But unless there
are other symptoms associated with the microSD card, effort should be
concentrated on finding
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Hi James,
Please have a look at https://dev.laptop.org.au/issues/1033#note-64
which was the email sent some time ago internally when the workaround
for this was just found.
* It is currently difficult for us to follow linux debugging
techniques as
FYI, The testing efforts (with old v new SD cards are being recorded
at http://dev.laptop.org.au/issues/1323)
On Wed, Jun 13, 2012 at 12:57 AM, Jerry Vonau jvo...@shaw.ca wrote:
On Mon, 2012-06-11 at 20:06 +0530, Anish Mangal wrote:
On Tue, Jun 5, 2012 at 8:11 PM, Martin Langhoff
On Thu, Jun 14, 2012 at 12:03:39PM +0530, Anish Mangal wrote:
FYI, The testing efforts (with old v new SD cards are being recorded
at http://dev.laptop.org.au/issues/1323)
I've found microSD card performance can change slightly as a result of
a reflash. On #1323 it seems an fs-update was done
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On Thursday 14 June 2012 01:16 PM, James Cameron wrote:
On Thu, Jun 14, 2012 at 12:03:39PM +0530, Anish Mangal wrote:
FYI, The testing efforts (with old v new SD cards are being
recorded at http://dev.laptop.org.au/issues/1323)
I've found
On Fri, Jun 15, 2012 at 4:09 AM, James Cameron qu...@laptop.org wrote:
On Thu, Jun 14, 2012 at 06:51:58PM +0530, Anish Mangal wrote:
* Insert bad microSD. Flash the new build (using fs-update)
* Test
* Insert good microSD. Flash the new build (using fs-update)
* Test
In your testing,
On Mon, 2012-06-11 at 20:06 +0530, Anish Mangal wrote:
On Tue, Jun 5, 2012 at 8:11 PM, Martin Langhoff mar...@laptop.org wrote:
On Tue, Jun 5, 2012 at 10:37 AM, Martin Langhoff mar...@laptop.org wrote:
- Seems to be related to umount of /home failing. Adding sync ; sleep
2; before umount
On Tue, Jun 5, 2012 at 8:11 PM, Martin Langhoff mar...@laptop.org wrote:
On Tue, Jun 5, 2012 at 10:37 AM, Martin Langhoff mar...@laptop.org wrote:
- Seems to be related to umount of /home failing. Adding sync ; sleep
2; before umount seems to cure it; that's their current workaround.
Cutting
On Fri, Jun 8, 2012 at 6:26 PM, Anish Mangal an...@activitycentral.orgwrote:
On Fri, Jun 8, 2012 at 5:45 PM, Kevin Gordon kgordon...@gmail.com wrote:
Sitting in a lab here in Kenya with about 60 XO 1.5's all at standard 885
Did shutdowns on all boxes 3 times (180 shutdowns) - all with
On Sat, Jun 9, 2012 at 3:43 AM, Anish Mangal an...@sugarlabs.org wrote:
On Sat, Jun 9, 2012 at 2:22 AM, Walter Bender walter.ben...@gmail.com wrote:
On Tue, Jun 5, 2012 at 10:37 AM, Martin Langhoff mar...@laptop.org wrote:
Hi folks,
the Dextrose team has been hunting a bug on XO-1.5, on their
Sitting in a lab here in Kenya with about 60 XO 1.5's all at standard 885
Did shutdowns on all boxes 3 times (180 shutdowns) - all with right-click
on centre icon and choose shutdown - after they were up for 5 mins or more.
Results:
160 normal shutdowns
20 hang on warnings page
No machines
On Fri, Jun 8, 2012 at 5:45 PM, Kevin Gordon kgordon...@gmail.com wrote:
Sitting in a lab here in Kenya with about 60 XO 1.5's all at standard 885
Did shutdowns on all boxes 3 times (180 shutdowns) - all with right-click
on centre icon and choose shutdown - after they were up for 5 mins or
On Tue, Jun 5, 2012 at 10:37 AM, Martin Langhoff mar...@laptop.org wrote:
Hi folks,
the Dextrose team has been hunting a bug on XO-1.5, on their variant
of 11.3.x (Dextrose 3 or DX3), and they are pointing out that it
could be a latent or unreported problem in 11.3.x series. It could
also be
On Sat, Jun 9, 2012 at 2:22 AM, Walter Bender walter.ben...@gmail.com wrote:
On Tue, Jun 5, 2012 at 10:37 AM, Martin Langhoff mar...@laptop.org wrote:
Hi folks,
the Dextrose team has been hunting a bug on XO-1.5, on their variant
of 11.3.x (Dextrose 3 or DX3), and they are pointing out that
Hi folks,
the Dextrose team has been hunting a bug on XO-1.5, on their variant
of 11.3.x (Dextrose 3 or DX3), and they are pointing out that it
could be a latent or unreported problem in 11.3.x series. It could
also be a problem in their modifications.
While they continue to investigate, it is
On Tue, Jun 5, 2012 at 10:37 AM, Martin Langhoff mar...@laptop.org wrote:
- Seems to be related to umount of /home failing. Adding sync ; sleep
2; before umount seems to cure it; that's their current workaround.
Cutting the CC list down to only devel@ for debugging --
Anish,
thanks for
On 06/06/12 02:37, Martin Langhoff wrote:
The bottom line: have you seen this issue on XO-1.5 + 11.3.x? Even if
ocassionally? Let us know, and join the bug-hunting party.
We have seen this sort of problem in Auckland recently. However I can't
really be sure if what we see is related. We test
On Tue, Jun 5, 2012 at 4:43 PM, Tom Parker t...@carrott.org wrote:
We'll do some explicit testing of shutdown on Saturday.
Fantastic, thanks!
m
--
mar...@laptop.org -- Software Architect - OLPC
- ask interesting questions
- don't get distracted with shiny stuff - working code first
-
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