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    SubjectRe: [PATCH v4 0/2] Add support to dump printk buffer to console via sysrq
    Hi,

    first, I am sorry for joining the game so late. I was sick
    and have had a lot of pending tasks after Christmas's holidays
    and the sickness.

    On Thu 2024-02-01 13:12:39, Sreenath Vijayan wrote:
    > Hi,
    >
    > This patch series enables one to dump the messages in printk ring
    > buffer unless all CPUs are locked up. This is useful to view the
    > kernel messages when terminal is unresponsive to enter commands
    > like dmesg and syslog services are also disabled, especially on
    > embedded targets.

    What is the exact scenario for this feature, please?

    IMHO, rewinding the entire log on an unresponsive terminal
    has a questionable value. Most messages would scroll down
    quickly and only the last messages would stay visible.

    Also this code would rewind all consoles, including
    (slow) serial ones. I wonder if rewind on these consoles
    would be useful as well.

    That said, I am not completely against this feature.
    I just want to be sure that it does what you expect.

    Best Regards,
    Petr

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