WARN ：“max num of extents read, increase cow_ext_buf_size”

[qq721027646]

I encountered an issue where a Panic occurred while taking snapshots in the docker environment. I only have a partial screenshot of dmesg (I'm sorry I can't provide more information, the error message is not traceable). According to this section of dmesg information, the dockerd process has been suspended. An error occurred while executing the copy_from_user function.
My question is: based on this information, can it be ruled out that the downtime is caused by the elastio-snap module?

https://github.com/elastio/elastio-snap/blob/1905a022b3d678d7cf7848380d43e05c5e0c90ed/src/elastio-snap.c#L2700C1-L2700C8

[skypodolsky]

@qq721027646 it seems that the max extent count has been reached. Consider increasing elastio_snap_cow_ext_buf_size variable in the module parameter.

[qq721027646]

@qq721027646 it seems that the max extent count has been reached. Consider increasing elastio_snap_cow_ext_buf_size variable in the module parameter.

Thanks