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Re: Memory barrier problem in InnoDB/XtraDB mutex implementation causing hangs


Sergey Vojtovich <svoj@xxxxxxxxxxx> writes:

> According to history ACQUIRE -> RELEASE fix appeared in 10.0.13 and fix for
> log_get_lsn() appeared in 10.0.14. Both fixes appeared similtaneously in 5.5.40.
> So runtime hangs should be solved both in 5.5 and 10.0. This leaves hangs during
> startup, which are unfortunate but not as critical as runtime hangs.
> Are there any other known hangs?

If you are going to argue for deliberately keeping broken mutex_enter() /
mutex_exit() in MariaDB, I will stay out of the discussion. I was only trying
to get Buildbot green so that I can push my completely unrelated fixes for

 - Kristian.

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