Renderer crash because of Memory Allocation

[JanLochi]

HI All.

I have an i.MX6 with Yocto Dunfell and the current main branch of meta-webkit in use.

cog is in started with cog -P drm --platform-params=renderer=gles and uses the etnaviv driver.

While starting the cog browser, I sometimes get the error:

DRM_IOCTL_MODE_CREATE_DUMB failed: Cannot allocate memory
Crash!: The renderer process crashed. Reloading the page may fix intermittent failures.

Are there some Kernel configs to improve the situation or similar?

Thx!

[philn]

CCing @psaavedra who's worked on etnaviv/wpe at some point in the recent past ;)

[JanLochi]

Addendum: My target device has 256MB RAM and one CPU core. Its sole job is to host the cog browser.

[JanLochi]

Sooo, after investing some hours on that issue. I discovered, that my BSP has the Kernel Config: CONFIG_CMA_SIZE_MBYTES=320.
With a SOM with only 256MB of RAM, this consequently leads to a CMA pool of nothing.

Most likely, with a sane setting of CONFIG_CMA_SIZE_MBYTES, the cog browser should work as expected.

[philn]

Please let us know how it goes after fixing the CMA size!

[JanLochi]

Looks like it is working now. 👍

The CMA is now set to 64MB.

Any suggestions to have cog running on that resource constrained device? Should I use these params?

--web-mem-limit
--net-mem-limit

I have some other issues now, I will open another discussion to not clutter this one.