Bug 15819

Summary:	2.6.34rc4 NFS writeback regression (bisected): client often fails to delete things it just created
Product:	File System	Reporter:	Maciej Rutecki (maciej.rutecki)
Component:	NFS	Assignee:	Trond Myklebust (trondmy)
Status:	CLOSED CODE_FIX
Severity:	normal	CC:	maciej.rutecki, nix, rjw
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.34-rc4	Subsystem:
Regression:	Yes	Bisected commit-id:
Bug Depends on:
Bug Blocks:	15310
Attachments:	NFS: Fix an unstable write data integrity race

Description Maciej Rutecki 2010-04-20 19:22:52 UTC

Subject    : 2.6.34rc4 NFS writeback regression (bisected): client often fails to delete things it just created
Submitter  : Nix <nix@esperi.org.uk>
Date       : 2010-04-17 19:43
Message-ID : 87tyr9dfvv.fsf@spindle.srvr.nix
References : http://marc.info/?l=linux-kernel&m=127153342205389&w=2

This entry is being used for tracking a regression from 2.6.33.  Please don't
close it until the problem is fixed in the mainline.

Caused by:

commit acdc53b2146c7ee67feb1f02f7bc3020126514b8
Author: Trond Myklebust <Trond.Myklebust@netapp.com>
Date:   Fri Feb 19 17:03:26 2010 -0800

    NFS: Replace __nfs_write_mapping with sync_inode()

    Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

First-Bad-Commit : acdc53b2146c7ee67feb1f02f7bc3020126514b8

Comment 1 Trond Myklebust 2010-04-22 20:56:30 UTC

Created attachment 26100 [details]
NFS: Fix an unstable write data integrity race

The above patch has been confirmed to fix this bug, and has been
queued for mainline inclusion.

Comment 2 Rafael J. Wysocki 2010-05-04 21:19:06 UTC

Fixed by commit 71d0a6112a363e703e383ae5b12c492485c39701 .