Re: [PATCH 0/3] rtla: fix cgroup and trace options parsing

From: Ivan Pravdin
Date: Tue Aug 12 2025 - 13:23:36 EST


On Tue, Aug 12, 2025 at 12:27:29PM -0400, Ivan Pravdin wrote:
> This series fixes 3 issue in rtla timerlat and osnoise parsing.
>
> 1. Fix buffer overflow when using --on-threshold option. Currently
> passing `--on-threshold trace` causes rtla timerlat to segfault.
> First patch addresses this issue.
>
> 2. Make -C/--cgroup option more user-friendly. Currently rtla timerlat
> and osnoise parses does not allow to specify tracer's threads cgroup
> name as `-C [cgroup]` or `--cgroup [cgroup]`. Second patch fixes this by
> allowing users to specify cgroup in the aforementioned manner.
>
> 3. When specifying `-t/--trace` before `-a/--auto`, trace filename is
> override to default <osnoise|timerlat>_trace.txt. For example, when
> running rtla as
>
> `rtla timerlat top -t custom_file.txt -a 100`
>
> when the threshold is reached, timerlat_trace.txt file is created
> instead of specified custom_file.txt. Third patch addresses this issue.
>
> Ivan Pravdin (3):
> rtla: fix buffer overflow in actions_parse
> rtla: fix -C/--cgroup interface
> rtla: fix -a overriding -t argument
>
> Documentation/tools/rtla/common_options.rst | 2 +-
> tools/tracing/rtla/src/actions.c | 2 +-
> tools/tracing/rtla/src/osnoise_hist.c | 24 ++++++++------
> tools/tracing/rtla/src/osnoise_top.c | 24 ++++++++------
> tools/tracing/rtla/src/timerlat_hist.c | 24 ++++++++------
> tools/tracing/rtla/src/timerlat_top.c | 36 +++++++++------------
> 6 files changed, 62 insertions(+), 50 deletions(-)
>
> --
> 2.48.1
>

Please disregard this and see v2 [1]

[1] https://lore.kernel.org/all/cover.1755018581.git.ipravdin.official@xxxxxxxxx/T/#t

Ivan Pravdin