Apologies for the gap since September. Merge proposal against ubuntu/noble-devel
is up: 
https://code.launchpad.net/~asrani-aman/ubuntu/+source/qemu/+git/qemu/+merge/513167

What is in it:
- Clean backport of upstream 4af976ef398e as
  d/p/ubuntu/lp2166503-rbd-fix-bdrv-get-specific-info.patch (10 hunks, line
  offsets only; the qapi/block-core.json hunk is a doc comment, no schema 
change).

- Version 1:8.2.2+ds-0ubuntu1.20 on top of the 1.19 currently in noble-proposed;
  please adjust if another upload lands first.

- Test-built on noble amd64 (dpkg-buildpackage, all binaries). The built
  block-rbd.so no longer contains the blocking-probe code path; the archive's
  1.18 module does.

- Measured 2026-09-04 on our Ceph host with this same patch built into 8.2.2:
  with rbd_qos_bps_limit=8 MiB/s and a discard in flight, `virsh domstats 
--block`
  took 60.39 s with the guest frozen on stock 1.16, and 0.141-0.153 s over six
  runs with the patched module, guest clock continuous.

Happy to do the SRU verification from noble-proposed as soon as it lands
there.

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2166503

Title:
  rbd: blocking rbd_read() in .bdrv_get_specific_info freezes guests

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/2166503/+subscriptions


-- 
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to