[alsa-devel] sound playback became chopping on nfs rootfs

Kuninori Morimoto kuninori.morimoto.gx at renesas.com
Thu Nov 18 09:24:29 CET 2010

Dear all

I noticed that sound playback became chopping on latest Linux kernel.
I checked it by "git bisect".
This chopping seems happen from below patch.

How to modify this chopping ?

I'm using SuperH ap4evb board.
CONFIG_CMDLINE="console=tty0, console=ttySC0,115200 earlyprintk=sh-sci.0,115200 root=/dev/nfs ip=dhcp"

	commit 56463e50d1fc3f070492434cea6303b35ea000de
	Author: Chuck Lever <chuck.lever at oracle.com>
	Date:   Fri Sep 17 10:54:37 2010 -0400

	NFS: Use super.c for NFSROOT mount option parsing

	Replace duplicate code in NFSROOT for mounting an NFS server on '/'
	with logic that uses the existing mainline text-based logic in the NFS

	Add documenting comments where appropriate.

	Note that this means NFSROOT mounts now use the same default settings
	as v2/v3 mounts done via mount(2) from user space.

	vers=3,tcp,rsize=<negotiated default>,wsize=<negotiated default>

	As before, however, no version/protocol negotiation with the server is

	Signed-off-by: Chuck Lever <chuck.lever at oracle.com>
	Signed-off-by: Trond Myklebust <Trond.Myklebust at netapp.com>

Best regards
Kuninori Morimoto

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