21832490514
80%
master: 80%

Ran 09 Feb 2026 04:05PM UTC

Jobs 1

Files 34

Run time 1min

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Committed 09 Feb 2026 04:04PM UTC coverage: 80.459%. Remained the same

Build # 21832490514

Build Type

push

github

Committed by

web-flow

Commit Message

CA-311475: do not change a domain's memory allocation while it is being… (#6890)

… built

When a domain takes a long time to be built (e.g. >1TiB) then squeezed
might run and attempt to change maxmem, causing the domain build to fail
to complete.

```
2026-02-04T13:59:12.915844+00:00 orca squeezed: [debug||9 ||squeeze_xen] Xenctrl.domain_setmaxmem domid=717 max=6370254848 (was=0)
2026-02-04T13:59:22.878301+00:00 orca squeezed: [debug||3 ||squeeze_xen] Xenctrl.domain_setmaxmem domid=717 max=2075287552 (was=6370254848)
```

Squeezed shouldn't change the maxmem setting on domains that have never
been run (other than to initialize it if 0). In fact another module in
Squeezed had code to detect whether a domain has ever been run, which
has been replaced with checking whether it has an active balloon driver
(if it hasn't reported a balloon driver it is still not very safe to
change it too early).

But that check missed one place that was still setting maxmem, ignoring
the balloon driver's presence. Fix this (hopefully last!) place: if
there is no balloon driver and we attempt to decrease maxmem then just
log a message instead.

Fixes: 9819bdbf22 ("CA-32810: prevent the memory ballooning daemon
capping a domain's memory usage before it has written feature-balloon.")

Run Details

3504 of 4355 relevant lines covered (80.46%)

0.8 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	python3.11 - 21832490514.1	09 Feb 2026 04:05PM UTC	34	80.46	GitHub Action Run

xapi-project / xen-api / 21832490514
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