Re: [PATCH net-next] modules: allow modprobe load regular elf binaries

From
Linus Torvalds <torvalds@linux-foundation.org>
Date
2018-03-09 19:12:17
Also in
linux-api, lkml
Reply to
David Miller, 2018-03-09
On Fri, Mar 9, 2018 at 10:57 AM, David Miller [off-list ref] wrote:
Once the helper UMH is invoked, it runs asynchronously taking eBPF
translation requests.
How?

Really. See my comment about mutual exclusion. The current patch is
*broken* because it doesn't handle it. Really.

Think of it this way - you may have now started *five* of those things
concurrently by mistake.

The actual module loading case never does that, because the actual
module loading case has per-module serialization that got
short-circuited.

How are you going to handle five processes doing the same setup concurrently?

                  Linus
Thread (68 messages) 68 messages, 14 authors, last reply 2018-05-02
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