Bug#925496: Introduced between v4.18 and v4.19, not fixed in v5.0

From	Mike Crowe <mac@mcrowe.com>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#925496: Introduced between v4.18 and v4.19, not fixed in v5.0
Date	2019-03-26 17:30 +0100
Message-ID	<xFX7A-5Ec-5@gated-at.bofh.it> (permalink)
References	<xFEoi-2G2-17@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

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I've tested some other kernel versions. In the description below, "fast"
means that the NFS clients booted quickly (~20s) whereas "slow" means that
the NFS clients booted slowly (~100s).

In all cases, rx-usecs=200, rx-frames=4.

Debian versions:

v4.18.0-3-amd64: fast (not tested recently)
v4.19.0-4 (4.19.28-2): slow

Upstream kernel versions built from source:

v4.18.0:  fast
v4.18.20: fast
v4.19.31: slow
v5.0.3:   slow

I'm bisecting between v4.18 and v4.19 now, but it's slow going.

Mike.

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Bug#925496: Introduced between v4.18 and v4.19, not fixed in v5.0 Mike Crowe <mac@mcrowe.com> - 2019-03-26 17:30 +0100

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