On Fri, Feb 12, 2021 at 12:43:59PM +0800, Nicolas Boichat wrote:
> We hit an issue when upgrading Go compiler from 1.13 to 1.15 [1],
> as we use Go's `io.Copy` to copy the content of
> `/sys/kernel/debug/tracing/trace` to a temporary file.
>
> Under the hood, Go 1.15 uses `copy_file_range` syscall
We hit an issue when upgrading Go compiler from 1.13 to 1.15 [1],
as we use Go's `io.Copy` to copy the content of
`/sys/kernel/debug/tracing/trace` to a temporary file.
Under the hood, Go 1.15 uses `copy_file_range` syscall to
optimize the copy operation. However, that fails to copy any
content wh
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