Re: [Boost-users] [asio] null reference in epoll_reactor

Subject: Re: [Boost-users] [asio] null reference in epoll_reactor
From: Phil Sean (philsean_at_[hidden])
Date: 2017-10-18 11:35:38

> Could you possibly bisect the 1.65.1 git branch and determine
> precisely which commit causes the problem?

Turns out valgrind had a typo that mistakingly reports epoll_pwait()
with a NULL sigmask as an error, and glibc happens to have a
condition to invoke epoll_pwait() for calls to epoll_wait(), filling
sigmask with NULL.

The error has been fixed but not yet released
([https://sourceware.org/git/?p=valgrind.git;a=commit;h=3ac87cf9277964802ddd9af9747a10ff0b838c29)](https://sourceware.org/git/?p=valgrind.git;a=commit;h=3ac87cf9277964802ddd9af9747a10ff0b838c29).

Thanks for your attention.