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id = 2621
title = "virtgpu does not return error for misconfigured virgl command"
state = "opened"
created_at = "2024-10-15T21:31:11.362Z"
closed_at = "n/a"
labels = ["device:graphics", "device:virtio"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/2621"
host-os = "Not related"
host-arch = "Not related"
qemu-version = "9.0.2 (also older versions)"
guest-os = "Not related"
guest-arch = "Not related"
description = """When ```virgl_renderer_submit_cmd``` reports error, cmd->error should be set. Otherwise driver cannot know if there is error.
https://gitlab.com/qemu-project/qemu/-/blob/master/hw/display/virtio-gpu-virgl.c?ref_type=heads#L233
Probably 0x1200 (unspec) or 0x1205 (invalid param) should return as error.
If there is problem in cmd virgl freezes drawing window."""
reproduce = """1. Send misformated command to virgl over vgpu device
2.
3."""
additional = """Misformated 3d commands stops opengl's drawings. Without returning error we cannot know any error, hence we cannot reset vgpu."""
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