stratakis

Thanks for taking a look at it. Made the changes you requested.

Indeed I've managed to workaround the issue by using this patch according to https://github.com/cython/cython/pull/6085#issuecomment-2077446195 ``` --- a/src/gevent/_gevent_cqueue.pxd +++ b/src/gevent/_gevent_cqueue.pxd @@ -75,7 +75,6 @@ cdef class ItemWaiter(Waiter): cdef readonly Queue queue...

The regression is there for some time and the PR is still in draft. Is there some way to move this forward?

Same happening for AlmaLinux 9

The issue was the APEI setting in the BIOS. After disabling it it was possible to proceed with the installation.

Indeed disabling LTO makes the trick, thanks for figuring it out! It's also one of the flags that were recently [enabled by default](https://fedoraproject.org/wiki/LTOByDefault) for all the Fedora packages. Would it...

I see that the nrf port is actually using -fno-lto: https://github.com/micropython/micropython/commit/ea00717a57 So I presume the same needs to be done here for py/py.mk However I tried to reproduce the issue...

With GCC when the -pack-relative-relocs linker flag is used, BOLT fails again on the same functions.

I've rebased to add various edge cases and combinations. Initially I just removed the --skip-funcs flag to test what works and what not. Tested combinations of --with-lto, --enable-optimizations, --enable-shared and...

Added some fixups commits. However some builds are breaking by this change as mentioned in https://github.com/python/cpython/pull/140250#issuecomment-3555530825 so I think it would be ideal to have BOLT fixed first before.