[mythtv-users] everyday i have to make sure myth worked the day before
warpme at o2.pl
Wed Apr 20 20:59:56 UTC 2011
On Apr 19, 2011, 9:24 PM mtdean at thirdcontact wrote:
>These are the socket errors that have been plaguing some users on some
>systems for many versions, now (since 0.21-fixes), and are likely due to
>changes in libc or the kernel or system configuration or something that
>MythTV code may not have kept up with. They only seem to occur on some
>systems. Those that see them, see them a lot. Others never see them.
>(I'm in the latter group.) It may well be timing-related (which would
>make sense since you said that use -v most prevents the problem--which
>could be because the additional verbosity changes the timing of
>operations enough to prevent the problem).
I'm unfortunately in first group.
Lastly I rebuild 0.24-fixes 20110417 with debug flags exactly for tying
catch socket issues.
One from many I caught (9733).
Other (e.g. deadlocks with EIT Active scan) I simply can't as since 5
days BE works stable in config - which without debug build was
deadlocking every 10-24h. Sure - maybe I was luck and 5 times longer
test window was too short.
Anyway - I'm not specialist in programing - but clear correlation
between build type and deadlock frequency tells me my issue is rather
not result of of BE environment - but rather BE internal issues.
I have socket related BE deadlocks since long time (10-12 months or so).
In this period I tried 4 or 5 kernels, 4 glibc, 3 mysql and 3 Qt
versions. No any change.
Personally I believe it is BE threading races issue as my BE is doing
many other things for months of up-time without any issues.
Generally - it would be great to have definition of myth gold
environment (versions of all relevant environment components giving
expected to be most stable myth runtime).
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