[Bug 270399] lock order reversal /usr/src/sys/net/bpf.c:1519
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Date: Sun, 27 Oct 2024 14:31:05 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=270399
Mark Johnston <markj@FreeBSD.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|New |Closed
CC| |markj@FreeBSD.org
Resolution|--- |FIXED
--- Comment #1 from Mark Johnston <markj@FreeBSD.org> ---
I believe this is now fixed by commit a52f23f4c49e4. In particular, iflib no
longer holds its ctx lock while calling ether_ifattach(), so the iflib ctx ->
bpf global lock order isn't established.
I also don't see any LORs when enabling promiscuous mode on an igb interface,
and witness reports a lock order "bpf global lock" -> "iflib ctx lock".
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