Bug 10837

Summary:	rpciod stuck in 'D' state
Product:	File System	Reporter:	Rafal Wijata (wijata)
Component:	NFS	Assignee:	Trond Myklebust (trondmy)
Status:	CLOSED CODE_FIX
Severity:	high	CC:	alan, bfields
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.24.4-64.fc8	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	echo w > sysrq-trigger # output

Description Rafal Wijata 2008-05-30 01:40:03 UTC

Latest working kernel version:
Earliest failing kernel version:
Distribution: Fedora 8
Hardware Environment:
Software Environment:
Problem Description:

I have nfs mounts mounted via automount. Suddenly it stopped working.
After short investigation, appeared that kernel helper thread stuck in 'D' state - refer attachement for "echo w > /proc/sysrq-trigger" output

Steps to reproduce:

Comment 1 Rafal Wijata 2008-05-30 01:43:12 UTC

Created attachment 16334 [details]
echo w > sysrq-trigger # output

Comment 2 Trond Myklebust 2008-05-30 11:24:12 UTC

This should already be fixed in 2.6.25, where rpciod is no longer
responsible for closing the open context, and therefore cannot get into
a situation where it calls rpc_shutdown_client on itself.