OpenPrinting / OpenPrinting/system-config-printer
Threading error occurs on attempt to add a printer
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- Dominant language
- Python
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- 1d 14h
- Merged PRs (30d)
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Description
This would have been a silent error had I not decided to run the tool from the command line:
No ID match for device lpd://BRN30055C147729/BINARY_P1:
MFG:Brother;MDL:MFC-7860DW;CMD:PJL,PCL,PCLXL;
No ID match for device lpd://BRN30055C147729/BINARY_P1:
MFG:Brother;MDL:MFC-7860DW;CMD:PJL,PCL,PCLXL;
[xcb] Unknown request in queue while dequeuing
[xcb] Most likely this is a multi-threaded client and XInitThreads has not been called
[xcb] Aborting, sorry about that.
python: ../../src/xcb_io.c:179: dequeue_pending_request: Assertion `!xcb_xlib_unknown_req_in_deq' failed.
It sounds like this is a multithreaded application. Just so you know, X11 isn't really threadsafe unless explicitly told to be so.
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Research direction
No source file, test, or entry point is identified in the issue. Reproduce the printer-add operation from the command line and trace the multithreaded X11 failure; done means the operation no longer aborts with the reported threading error and the behavior is covered by an appropriate test.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- desktop
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100