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[Bug nptl/11588] pthread condvars are not priority inheritance aware
- From: "darren.hart at intel dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Tue, 17 May 2016 16:01:00 +0000
- Subject: [Bug nptl/11588] pthread condvars are not priority inheritance aware
- Auto-submitted: auto-generated
- References: <bug-11588-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=11588
--- Comment #50 from Darren Hart <darren.hart at intel dot com> ---
Torvald, I'm reading up (again :-) ) on the issues you've raised from the
Austin Group and building context on the use of the sequence locks, etc. Would
you share your implementation with me so I can see what kinds of changes are
being considered and help building support for the PI cases?
Regarding boosting waiters for sending signals. Current futex PI boosting is
based on the Linux kernel rtmutex. Can you elaborate on the what/why in your
statement:
> Essentially, we need to boost the priority of waiters that have to wake up from a
> futex that is used to send signals, and have to confirm that they have woken up.
Thanks.
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