On 2025/09/18 21:39, Cédric Le Goater wrote:
Hello Akihiko,
On 9/17/25 14:56, Akihiko Odaki wrote:
Based-on: <20250917-subregion-v1-0-bef37d9b4...@rsg.ci.i.u-tokyo.ac.jp>
("[PATCH 00/14] Fix memory region use-after-finalization")
Make AddressSpaces QOM objects to ensure that they are destroyed when
their owners are finalized and also to get a unique path for debugging
output.
Suggested by BALATON Zoltan:
https://lore.kernel.org/qemu-devel/cd21698f-db77-eb75-6966-
d559fdcab...@eik.bme.hu/
Signed-off-by: Akihiko Odaki <od...@rsg.ci.i.u-tokyo.ac.jp>
I wonder if this is going to fix an issue I was seeing a while ago
in the FSI models. I couldn't find a clean way to avoid corrupting
memory because of how the address_space was created and later on
destroyed. See below,
Partially, but this is insufficient.
The first problem is that AddressSpace suffers from circular references
the following series solves:
https://lore.kernel.org/qemu-devel/20250906-mr-v2-0-2820f5a3d...@rsg.ci.i.u-tokyo.ac.jp/
"[PATCH v2 0/3] memory: Stop piggybacking on memory region owners"
Another problem is that RCU is not properly waited. This is left to
future work.
Regards,
Akihiko Odaki
