[Robo (deepak1556)]

The Fedora and Debian desktop sanity tests crash shortly after launch (SIGTRAP) when run inside the Docker containers. The aborts originate from two software-compositor allocation paths, both backed by shared memory on Linux:

  (cc::TileManager -> ZeroCopyRasterBufferImpl ->
   CreateSharedImageForSoftwareCompositor)
- base::DiscardableMemoryAllocator::
  AllocateLockedDiscardableMemoryWithRetryOrDie
  (SkMipmap::Build -> SoftwareImageDecodeCache)

Docker gives a container a default /dev/shm of only 64 MB. Once shared memory fills, the SharedImage and discardable allocations fail crashing the process.

Fixes #318542
Fixes https://github.com/microsoft/vscode-engineering/issues/2877

[vs-code-engineering]

📬 CODENOTIFY

The following users are being notified based on files changed in this PR:

Dmitriy Vasyura (@dmitrivMS)

Matched files:

• test/sanity/scripts/run-docker.sh

[Copilot]

Pull request overview

Increases Docker container shared memory for Linux desktop sanity tests to prevent crashes caused by /dev/shm exhaustion in default Docker configurations (notably in CI containers).

Changes:

• Add --shm-size=2g to the sanity-test docker run invocation to avoid shared-memory-backed allocation failures.

[Dmitriy Vasyura (dmitrivMS)]

Robo (@deepak1556) Thanks for getting to the bottom of it!

[Dmitriy Vasyura (dmitrivMS)]

We may want it in the release branch as sanity tests may be failing there as well.