Opened 12 years ago
Closed 12 years ago
#10423 closed Bug Report - General (fixed)
Setup UI locks up while scanning for channels
| Reported by: | Owned by: | danielk | |
|---|---|---|---|
| Priority: | minor | Milestone: | 0.25 |
| Component: | MythTV - Mythtv-setup | Version: | Master Head |
| Severity: | medium | Keywords: | channel scan |
| Cc: | Ticket locked: | no |
Description
While testing 0.25-beta (v0.25-beta-58-g48ba349) I notice that mythtv-setup becomes unresponsive after scan of certain multiplexes. Manual scanning of individual multiplexes works for most multiplexes. A complete scan may run for a while and then seemingly stop at certain multiplexes. At this point the various options to cancel/abort/complete etc are still selectable in the UI, but the UI becomes unresponsive once any of these options is invoked.
The attached log is output through gdb with chanscan logging. At the end of the log there's a stack-trace of all active threads following an abort at the point where the UI becomes unresponsive.
Attachments (1)
Change History (7)
comment:1 follow-up: 2 Changed 12 years ago by
Reverting https://github.com/MythTV/mythtv/commit/146ee76929fe1b00fe218e9d3364fe22e0f14340 did solve it for me.
Please note that I am also using this patch for channel scanning: http://code.mythtv.org/trac/ticket/7486
comment:2 Changed 12 years ago by
Replying to buehlmann@…:
Please note that I am also using this patch for channel scanning: http://code.mythtv.org/trac/ticket/7486
These tickets do seem to be related. The scanner stops after reporting that it has found a number of "potential channels" on a multiplex without offering any further action to add or edit channel-records. Missing NIT seems to cause the scan to terminate prematurely, while the main thread keeps waiting for resources to be released.
comment:3 follow-up: 4 Changed 12 years ago by
| Status: | new → infoneeded_new |
|---|
Does it lockup when you don't use any patches?
comment:4 Changed 12 years ago by
Replying to danielk:
Does it lockup when you don't use any patches?
Yes. I haven't actually tried the patch from ticket 7486, but judging by the source it is when the analysis of the information obtained from a multiplex is missing information that the UI becomes unresponsive. The patch fills in the missing information. However, the scan and analysis of a multiplex should release all locks and resources on exit even if data seem incomplete.
comment:5 Changed 12 years ago by
I had the same problems while scanning the Astra 1 satellite. Reverting the commit buehlmann mentioned fixed it for me.
comment:6 Changed 12 years ago by
| Resolution: | → fixed |
|---|---|
| Status: | infoneeded_new → closed |
Fixes #10423. Refs #8744. Fixes A->B,B->A locking issue introduced in [146ee7692]
Branch: master Changeset: f30ffd4b4a9ce16d6c7bcb604e09e07a9e61f3a3
Log and stacktrace