[mythtv-commits] Ticket #11082: Deadlock when entering LiveTV
MythTV
noreply at mythtv.org
Tue Sep 11 22:01:27 UTC 2012
#11082: Deadlock when entering LiveTV
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Reporter: kenni | Owner:
Type: Bug Report - Hang/Deadlock | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: Master Head
Severity: medium | Keywords:
Ticket locked: 0 |
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I'm seeing this deadlock regularly after upgrading to pre0.26 from
0.25-fixes. This time I got a chance to attach gdb to the mythbackend
process and collect a backtrace before restarting it. Unfortunately I
didn't get the frontend backtrace as it didn't have any symbols installed.
Symptom: When I enter LiveTV on a frontend, the screen remains black with
no sound and no error messages of any kind.
Performing a tcpdump on the frontend reveals that no data are received
from the backend at this point. Looking at the backend reveals that the
backend happily records from my HDHR to a LiveTV file, but it doesn't
stream anything to the frontend.
I can exit back to the main menu with no issues and start LiveTV again
afterwards, again resulting in a black screen and the backend recording to
a new LiveTV file and not streaming anything to the frontend.
The backend log doesn't contain even a single line from the moment when I
trigger LiveTV on the frontend. The frontend does produce log-entries, but
no obvious errors are given (see attached file).
Restarting the backend fixes the issue.
I don't mind compiling a debug build or running with specific verbose
options if needed - just ping me.
Version: v0.26-rc2-2-ga625725
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Ticket URL: <http://code.mythtv.org/trac/ticket/11082>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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