New comment by pullmoll on void-packages repository

https://github.com/void-linux/void-packages/issues/11426#issuecomment-489455769
Comment:
I somehow suspect a connection to the recently changed transparent hugepage handling in the kernels. I have `transparent_hugepage=madvise` in `/etc/default/grub`. I see no usage of `madvise(2)` in the qemu linux-user code, though.

If it is really an issue with qemu's `target_mremap()` function when `new_size > old_size` it could perhaps be the function `mmap_reserve()` in `linux-user/mmap.c:580` which is failing because it cannot find a consecutive range of pages. Just a wild guess, though.