On 24/10/26 07:15PM, Ned T. Crigler wrote:
> Hi,
Hey Ned,
> It looks like starting with kernel 6.11, disabling and re-enabling
> magic
> sysrq fails with these errors in dmesg:
>
> kernel: input: input_handler_check_methods: only one event processing
> method can be defined (sysrq)
> kernel: sysrq: Failed to register input handler, error -22
>
> after doing:
>
> # echo 0 > /proc/sys/kernel/sysrq
> # echo 438 > /proc/sys/kernel/sysrq
> # echo 0 > /proc/sys/kernel/sysrq
> # echo 438 > /proc/sys/kernel/sysrq
> # echo 0 > /proc/sys/kernel/sysrq
> # echo 438 > /proc/sys/kernel/sysrq
I have found that this issue is also present in the latest mainline
release and bisected it to the following commit:
d469647bafd9 ("Input: simplify event handling logic")
The additional authors / maintainers have been added to the recipients
lists.
I hope I didn't overlook any pending fixes.
> --
> Ned T. Crigler
Cheers,
Chris
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