ubuntu-phone team mailing list archive

[Ricardo Salveti de Araujo <ricardo.salveti@xxxxxxxxxxxxx>]

On Sun, Mar 15, 2015 at 12:21 PM, Michael Zanetti
<michael.zanetti@xxxxxxxxxxxxx> wrote:
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>
> Hi,
>
> since a week or two I notice increased instability of connectivity on
> my krillin device during daily usage.
>
> The symptoms are visible in that networking starts failing to connect.
> Mostly when switching from WiFi to 3G or back. At some point it just
> stops connecting to 3G or WiFi and it stops listing wireless networks
> at all. Making phone calls doesn't work any more either although the
> indicator suggests it would be registered to GSM.
>
> I just started to examine the logs and found something suspicious in
> syslog. It seems that the device was stuck in a wakeup-suspend loop
> for the whole night, producing dozens of messages in syslog every
> second. Interestingly the battery still survived throughout the night.

Looking at your syslog it seems that the device was trying to deep
suspend during the entire night, but then the CONN interrupt was
aborting the suspend after a few seconds.

I don't yet know what CONN means, but I'd suspend something with the modem.

Below the output from suspend-blocker:

rsalveti@evasys:/tmp$ suspend-blocker -b -r -H < syslog.wakeuploop
stdin:
Suspend blocking wakelocks:
  None

Resume wakeup causes:
  CONN                             3286  90.52%
  EINT                              224   6.17%
  CCIF_MD                           120   3.31%

Suspend failure causes:
  tasks freezer abort               291  99.66%
  devices failed to suspend           1   0.34%

Time between successful suspends:
   Interval (seconds)          Frequency    Cumulative Time (Seconds)
     0.000 -    0.124       2991  82.49%     287.18   1.19%
     0.125 -    0.249        214   5.90%      33.27   0.14%
     0.250 -    0.499        108   2.98%      50.10   0.21%
     0.500 -    0.999         72   1.99%      52.45   0.22%
     1.000 -    1.999         43   1.19%      52.10   0.22%
     2.000 -    3.999         14   0.39%      33.49   0.14%
     4.000 -    7.999         13   0.36%      75.89   0.31%
     8.000 -   15.999          8   0.22%      85.57   0.35%
    16.000 -   31.999          5   0.14%     126.70   0.52%
    32.000 -   63.999         39   1.08%    1870.25   7.72%
    64.000 -  127.999         54   1.49%    4605.34  19.00%
   128.000 -  255.999         64   1.77%   10879.89  44.90%
   256.000 -  511.999          0   0.00%       0.00   0.00%
   512.000 - 1023.999          0   0.00%       0.00   0.00%
  1024.000 - 2047.999          0   0.00%       0.00   0.00%
  2048.000 - 4095.999          0   0.00%       0.00   0.00%
  4096.000 - 8191.999          1   0.03%    6080.75  25.09%

Duration of successful suspends:
   Interval (seconds)          Frequency    Cumulative Time (Seconds)
     0.000 -    0.124        198   5.46%      19.21   0.04%
     0.125 -    0.249         30   0.83%       4.36   0.01%
     0.250 -    0.499         14   0.39%       5.26   0.01%
     0.500 -    0.999        503  13.86%     454.64   0.90%
     1.000 -    1.999        162   4.46%     270.18   0.53%
     2.000 -    3.999       1059  29.18%    3803.47   7.49%
     4.000 -    7.999        566  15.60%    3534.36   6.96%
     8.000 -   15.999        497  13.70%    5717.27  11.26%
    16.000 -   31.999        272   7.50%    6316.36  12.44%
    32.000 -   63.999        173   4.77%    7892.30  15.54%
    64.000 -  127.999         83   2.29%    7437.48  14.64%
   128.000 -  255.999         56   1.54%   10779.37  21.22%
   256.000 -  511.999         16   0.44%    4554.50   8.97%
NOTE:  0.03% of the samples were inaccurate estimates.

Suspends:
  378 suspends aborted (9.43%).
  3629 suspends succeeded (90.57%).
  total time: 50788.777898 seconds (67.70%).
  minimum: 0.000000 seconds.
  maximum: 300.341932 seconds.
  mean: 13.995254 seconds.
  mode: 4.000000 seconds.
  median: 3.894680 seconds.

Time between successful suspends:
  total time: 24232.978656 seconds (32.30%).
  minimum: 0.000032 seconds.
  maximum: 6080.750517 seconds.
  mean: 6.683116 seconds.
  mode: 0.000000 seconds.
  median: 0.109807 seconds.

Cheers,
-- 
Ricardo Salveti de Araujo