Bug 164534

Summary:	[bpf] net.bpf.zerocopy_enable=1 makes pflogd eat cpu and hang
Product:	Base System	Reporter:	c.kworr
Component:	kern	Assignee:	freebsd-net (Nobody) <net>
Status:	Open ---
Severity:	Affects Only Me	CC:	delphij, gharris
Priority:	Normal
Version:	Unspecified
Hardware:	Any
OS:	Any
Bug Depends on:	163370
Bug Blocks:

Description c.kworr 2012-01-27 09:30:12 UTC

When running kernel with `option ZEROCOPY` and `net.bpf.zerocopy_enable=1`
starting pflogd results in its instant hang and 100% cpu consumption.

Fix: 

Don't play with options not in GENERIC I suppose...

Comment 1 Mark Linimon freebsd_committer

2012-01-28 04:58:28 UTC

Responsible Changed
From-To: freebsd-bugs->freebsd-net

Over to maintainer(s).

Comment 2 Christian S.J. Peron freebsd_committer

2012-01-29 02:52:14 UTC

Responsible Changed
From-To: freebsd-net->csjp

Take, we have fixes for this, but not real sure we have a solution 
agreed upon yet.

Comment 3 c.kworr 2012-05-07 12:38:44 UTC

Hi all.

How about at least noting zero_copy instability in man page and at 
src/sys/conf/NOTES?

-- 
Sphinx of black quartz judge my vow.

Comment 4 Eitan Adler freebsd_committer

2017-12-31 08:00:20 UTC

For bugs matching the following criteria:

Status: In Progress Changed: (is less than) 2014-06-01

Reset to default assignee and clear in-progress tags.

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