Bug 1841142 Comment 0 Edit History

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Original comment by
on 
## Steps to reproduce

1. Build Firefox off changes from bug 1840179 or later.
1. Run `webgpu:api,operation,buffers,map:mappedAtCreation,mapState:*` test cases from WebGPU's CTS. Observe that an extra error is thrown when `buffer.unmap` is called in the test's source.

    For convenience, the above can be automated with this `mach` command:

    ```sh
    ./mach wpt webgpu:api,operation,buffers,map:mappedAtCreation,mapState:*
    ```

Note that while the above repro. steps are based on bug 1840179, this bug existed before then.
Revision 1 by
on 
## Steps to reproduce

1. Build Firefox off changes from bug 1840179 or later.
1. Run `webgpu:api,operation,buffers,map:mappedAtCreation,mapState:*` test cases from WebGPU's CTS. Observe that an extra validation error is thrown when `buffer.unmap` is called in the test's source.

    For convenience, the above can be automated with this `mach` command:

    ```sh
    ./mach wpt webgpu:api,operation,buffers,map:mappedAtCreation,mapState:*
    ```

Note that while the above repro. steps are based on bug 1840179, this bug existed before then.
Revision 2 by
on 
- [x] Patches to fix the bug
- [ ] Upstream fix to WGPU
- [ ] Report an issue to WebGPU upstream

## Steps to reproduce

1. Build Firefox off changes from bug 1840179 or later.
1. Run `webgpu:api,operation,buffers,map:mappedAtCreation,mapState:*` test cases from WebGPU's CTS. Observe that an extra validation error is thrown when `buffer.unmap` is called in the test's source.

    For convenience, the above can be automated with this `mach` command:

    ```sh
    ./mach wpt webgpu:api,operation,buffers,map:mappedAtCreation,mapState:*
    ```

Note that while the above repro. steps are based on bug 1840179, this bug existed before then.
Revision 3 by
on 
- [x] Patches to fix the bug
- [ ] Report an issue to WebGPU upstream

## Steps to reproduce

1. Build Firefox off changes from bug 1840179 or later.
1. Run `webgpu:api,operation,buffers,map:mappedAtCreation,mapState:*` test cases from WebGPU's CTS. Observe that an extra validation error is thrown when `buffer.unmap` is called in the test's source.

    For convenience, the above can be automated with this `mach` command:

    ```sh
    ./mach wpt webgpu:api,operation,buffers,map:mappedAtCreation,mapState:*
    ```

Note that while the above repro. steps are based on bug 1840179, this bug existed before then.
Revision 4 by
on 
- [x] Patches to fix the bug
- [ ] Report an issue to WebGPU upstream, so clear docs. in the upstream spec. aren't lost.

Relevant link: <https://github.com/gpuweb/cts/issues/1930>

## Steps to reproduce

1. Build Firefox off changes from bug 1840179 or later.
1. Run `webgpu:api,operation,buffers,map:mappedAtCreation,mapState:*` test cases from WebGPU's CTS. Observe that an extra validation error is thrown when `buffer.unmap` is called in the test's source.

    For convenience, the above can be automated with this `mach` command:

    ```sh
    ./mach wpt webgpu:api,operation,buffers,map:mappedAtCreation,mapState:*
    ```

Note that while the above repro. steps are based on bug 1840179, this bug existed before then.
Revision 5 by
on 
Relevant link: <https://github.com/gpuweb/cts/issues/1930>

## Steps to reproduce

1. Build Firefox off changes from bug 1840179 or later.
1. Run `webgpu:api,operation,buffers,map:mappedAtCreation,mapState:*` test cases from WebGPU's CTS. Observe that an extra validation error is thrown when `buffer.unmap` is called in the test's source.

    For convenience, the above can be automated with this `mach` command:

    ```sh
    ./mach wpt webgpu:api,operation,buffers,map:mappedAtCreation,mapState:*
    ```

Note that while the above repro. steps are based on bug 1840179, this bug existed before then.

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