Hello:
This patch was applied to bpf/bpf-next.git (master) by Daniel Borkmann daniel@iogearbox.net:
On Tue, 30 Nov 2021 20:18:11 +0200 you wrote:
The test for bpf_iter_task_vma assumes that the output will be longer than 1 kB, as the comment above the loop says. Due to this assumption, the loop becomes infinite if the output turns to be shorter than 1 kB. The return value of read_fd_into_buffer is 0 when the end of file was reached, and len isn't being increased any more.
This commit adds a break on EOF to handle short output correctly. For the reference, this is the contents that I get when running test_progs under vmtest.sh, and it's shorter than 1 kB:
[...]
Here is the summary with links: - [bpf] bpf: Fix the test_task_vma selftest to support output shorter than 1 kB https://git.kernel.org/bpf/bpf-next/c/da54ab14953c
You are awesome, thank you!