Re: [RFC][PATCH] seccomp: add SECCOMP_RET_ACK for non-fatal SIGSYS

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Thanks! This is just what I need.

What are the drawbacks to returning the sigsys before executing the
system call? Otherwise this loses the benefit of properly reporting
registers for argument inspection.

How about SECCOMP_RET_PERMISSIVE? Describes the application rather
than the implementation. Otherwise preference is for
SECCOMP_RET_ALLOW_SIGSYS.
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