----- On Oct 14, 2021, at 9:05 AM, Yafang Shao laoar.shao(a)gmail.com wrote:
> If it happens that this ABI break is noticed by more than an
> program, then
> the kernel's ABI rules will require that this trace field size stays unchanged.
> This brings
> up once more the whole topic of "Tracepoints ABI" which has been discussed
> repeatedly in
> the past.
I will check if any other in-tree tools depends on TASK_COMM_LEN.
That's a start, but given this is a userspace ABI, out-of-tree userland
tools which depend of this to be fixed-size are also relevant.