New subject: [Bug 59120] xactengine3_7:xact3 is crashing since 2025-11-19 with debian 12 and older.

11 Dec 2025

      http://bugs.winehq.org/show_bug.cgi?id=59120

            Bug ID: 59120
           Summary: xactengine3_7:xact3 is crashing since 2025-11-19 with
                    debian 12 and older.
           Product: Wine
           Version: 11.0-rc1
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs@list.winehq.org
          Reporter: bernhardu@mailbox.org
      Distribution: ---

Created attachment 79943
  --> http://bugs.winehq.org/attachment.cgi?id=79943
backtrace and possible patch

I could reproduce it inside a debian 12 bookworm VM by stopping pulseaudio:
  systemctl --user stop pulseaudio.service pulseaudio.socket

The crash happens because winealsa.drv tries a `snd_pcm_open` with
of device "plughw:0,0", which fails with -16 / -EBUSY.

There is a `FAudio_assert` in `FAudio_PlatformGetDeviceDetails`,
but it gets compiled out because faudio gets compiled with NDEBUG.

The test `test_renderer_details` got added in commit 61963006e0,
does this justify to mark this as regression?

Attached file contains the backtrace of the snd_pcm_open and the crash.
And an early return if alsa_get_mix_format fails.

Test pattern page:
https://test.winehq.org/data/patterns.html#xactengine3_7:xact3

Testbot run showing the crash:
https://testbot.winehq.org/JobDetails.pl?Key=161257

Testbot run with the patch from attached file:
https://testbot.winehq.org/JobDetails.pl?Key=161258

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[Bug 59120] New: xactengine3_7:xact3 is crashing since 2025-11-19 with debian 12 and older.

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