If a resource bridge becomes closed for some reason, it will always get
signaled as ready and will make the poll call return immediately, only
to make us handle an error and go back to the same loop indefinitely.
This results in lots of error messages in the host's log and one CPU
core very busy doing nothing.
Fix this by making `process_resource_bridge()` return a `Result` and
removing the faulty bridge when it returns an error.
BUG=b:161774071
TEST=Make the video process exit after establishing the bridge, notice
that the bridge is properly removed on the GPU process side and the
latter does not flood the host's logs with the same error.
Change-Id: I19767d779a44caccf0870faf422c7234c4232818
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3310341
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Alexandre Courbot <acourbot@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>
Reviewed-by: Keiichi Watanabe <keiichiw@chromium.org>
crosvm is a virtual machine monitor (VMM) based on Linux’s KVM hypervisor, with
a focus on simplicity, security, and speed. crosvm is intended to run Linux
guests, originally as a security boundary for running native applications on the
Chrome OS platform. Compared to QEMU, crosvm doesn’t emulate architectures or
real hardware, instead concentrating on paravirtualized devices, such as the
virtio standard.
crosvm is currently used to run Linux/Android guests on Chrome OS devices.
For contribution, see
the contributor guide.
Mirror repository is available at
GitHub for your convenience, but we
don't accept bug reports or pull requests there.
88b671a469
