Hi,
On 2024-02-12 13:28:40 -0500, Andrew Dunstan wrote:
> On 2024-02-12 Mo 11:44, Dave Cramer wrote:
> > OK, so I have managed to get a debugger attached to postgres.exe when it
> > faults and the fault occurs at
> >
https://github.com/postgres/postgres/blob/09eb633e1baa3b7cd7929f3cc77f9c46f63c20b1/src/backend/utils/mmgr/dsa.c#L869
> > span is pointing to 0x0
>
> Further data point. If I select a build type of 'debug' instead of
> 'debugoptimized' the error disappears.
Oh, this is quite interesting. Dave, could you post the backtrace?
I wonder if this indicates that we are either missing memory barriers
somewhere or that the memory barriers we end up with on msvc + arm aren't
correct? Either could explain why the problem doesn't occur when building
with optimizations.
Greetings,
Andres Freund