Re: extended bpf_send_signal_thread with argument
From: Peter Zijlstra <peterz@infradead.org>
Date: 2021-02-01 09:23:55
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bpf, lkml
On Sun, Jan 31, 2021 at 12:14:02PM +0100, Dmitry Vyukov wrote:
Hi, I would like to send a signal from a bpf program invoked from a perf_event. There is:
You can't. Sending signals requires sighand lock, and you're not allowed to take locks from perf_event context.