Re: [PATCH] BPF: Disable on PREEMPT_RT

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From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Date: Fri, 18 Oct 2019 00:11:38 +0200 (CEST)

> tcpdump and wireshark work perfectly fine on a BPF disabled kernel at least
> in the limited way I am using them.

Yes it works, but with every packet flowing through the system getting
copied into userspace.  This takes us back to 1992 :-)



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