| Summary: | start_wqthread not registered on OS X 10.6 | ||
|---|---|---|---|
| Product: | [Developer tools] valgrind | Reporter: | Bernd Heller <bdheller> |
| Component: | general | Assignee: | Julian Seward <jseward> |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | major | CC: | bart.vanassche+kde |
| Priority: | NOR | ||
| Version: | 3.6 SVN | ||
| Target Milestone: | --- | ||
| Platform: | Compiled Sources | ||
| OS: | macOS | ||
| Latest Commit: | Version Fixed In: | ||
| Attachments: | Evil patch to register start_wqthread thread | ||
*** This bug has been marked as a duplicate of bug 216837 *** |
Created attachment 42314 [details] Evil patch to register start_wqthread thread I tried using valgrind with the patches for 10.6 applied. Both helgrind and drd tools fail quickly with a message like this: Helgrind: hg_main.c:618 (map_threads_lookup): Assertion 'thr' failed. After tracking it down some more, the issue is that pre_thread_ll_create is not called for the thread start_wqthread which probably is part of the work queue of OS X. This thread exists in my process although there is no direct use of work queue APIs. I could get helgrind to work with the attached utterly awful and probably disastrous patch. It's not meant as a solution, but as a pointer for someone more knowledgable in the valgrind darwin port.