NetBSD Problem Report #26374

Received: (qmail 24125 invoked by uid 605); 20 Jul 2004 12:32:01 -0000
Message-Id: <20040720123156.809583C82@orthanc.coris.org.uk>
Date: Tue, 20 Jul 2004 13:31:56 +0100 (BST)
From: jdc@coris.org.uk
Sender: gnats-bugs-owner@NetBSD.org
Reply-To: jdc@coris.org.uk
To: gnats-bugs@gnats.netbsd.org
Subject: Long delay before non-root users can write to softdep partitions
X-Send-Pr-Version: 3.95

>Number:         26374
>Category:       kern
>Synopsis:       Long delay before non-root users can write to softdep partitions
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jul 20 12:33:00 +0000 2004
>Closed-Date:    Wed Apr 01 04:08:19 +0000 2009
>Last-Modified:  Wed Apr 01 04:08:19 +0000 2009
>Originator:     Julian Coleman
>Release:        NetBSD 2.0G
>Organization:
>Environment:
System: NetBSD sirion 2.0G NetBSD 2.0G (ULTRA60) #0: Thu Jul 15 11:09:19 BST 2004 root@sirion:/usr/obj/sys/arch/sparc64/compile/ULTRA60 sparc64  
Architecture: sparc64      
Machine: sparc64

>Description:
	After a partition mounted with softdep has been filled to > 100%,
	it's not possible to write to the partition as a non-root user for
	some time after space has apparently been freed.

	fstab entry:
  /dev/sd1e	/usr/obj	ffs	rw,nodev,softdep	0	2

	full partition:
  Filesystem  1024-blocks     Used     Avail Capacity  Mounted on
  /dev/sd1e      6106568  5935606   -134366   102%    /usr/obj

	A non-root user could not write to this partition when space had been
	freed to:

  Filesystem  1024-blocks     Used     Avail Capacity  iused    ifree  %iused  Mounted on
  /dev/sd1e       6106568  4754166   1047074    81%   367514   392804    48%   /usr/obj

	For example:

  $ cat > zz
  fff
  /usr/obj: write failed: file system is full
  cat: stdout: No space left on device

	root could write to this partition with no problems.

	After some time (5 minutes or so), non-root users could write to
	this partition again.

>How-To-Repeat:
	Go over 100% full on a partition with softdeps enabled.
	Remove some files so that the partition is less than 100% full.
	Try to write to the partition as a non-root user without waiting
	for the softdeps "cache" to empty.

>Fix:
	Unknown.
>Release-Note:
>Audit-Trail:
From: Andrew Doran <ad@netbsd.org>
To: gnats-bugs@gnats.NetBSD.org
Cc: 
Subject: PR/26374 CVS commit: src
Date: Sun, 22 Feb 2009 20:28:07 +0000 (UTC)

 Module Name:	src
 Committed By:	ad
 Date:		Sun Feb 22 20:28:07 UTC 2009

 Modified Files:
 	src/doc: CHANGES
 	src/lib/libp2k: p2k.c
 	src/sbin/fsck_lfs: lfs.c
 	src/sbin/mount: mount.8
 	src/sbin/newfs_lfs: make_lfs.c
 	src/sbin/tunefs: tunefs.8 tunefs.c
 	src/sys/arch/vax/conf: VAX780
 	src/sys/conf: files
 	src/sys/kern: sys_aio.c vfs_bio.c vfs_subr.c vfs_syscalls.c
 	src/sys/miscfs/specfs: spec_vnops.c
 	src/sys/miscfs/syncfs: sync_subr.c
 	src/sys/modules/ffs: Makefile
 	src/sys/rump/fs/lib/libffs: Makefile
 	src/sys/rump/include/rump: rump.h
 	src/sys/rump/librump/rumpvfs: rump_vfs.c vm_vfs.c
 	src/sys/sys: buf.h vnode.h
 	src/sys/ufs: files.ufs
 	src/sys/ufs/ffs: ffs_alloc.c ffs_balloc.c ffs_extern.h ffs_inode.c
 	    ffs_snapshot.c ffs_vfsops.c ffs_vnops.c ffs_wapbl.c
 	src/sys/ufs/lfs: lfs_rfw.c lfs_vfsops.c lfs_vnops.c
 	src/sys/ufs/ufs: inode.h ufs_dirhash.c ufs_extern.h ufs_inode.c
 	    ufs_lookup.c ufs_readwrite.c ufs_vnops.c ufs_wapbl.c
 	src/sys/uvm: uvm_pager.c
 Removed Files:
 	src/sys/rump/librump/rumpkern/opt: opt_softdep.h
 	src/sys/ufs/ffs: ffs_softdep.c ffs_softdep.stub.c softdep.h

 Log Message:
 PR kern/26878 FFSv2 + softdep = livelock (no free ram)
 PR kern/16942 panic with softdep and quotas
 PR kern/19565 panic: softdep_write_inodeblock: indirect pointer #1 mismatch
 PR kern/26274 softdep panic: allocdirect_merge: ...
 PR kern/26374 Long delay before non-root users can write to softdep partitions
 PR kern/28621 1.6.x "vp != NULL" panic in ffs_softdep.c:4653 while unmounting a softdep (+quota) filesystem
 PR kern/29513 FFS+Softdep panic with unfsck-able file-corruption
 PR kern/31544 The ffs softdep code appears to fail to write dirty bits to disk
 PR kern/31981 stopping scsi disk can cause panic (softdep)
 PR kern/32116 kernel panic in softdep (assertion failure)
 PR kern/32532 softdep_trackbufs deadlock
 PR kern/37191 softdep: locking against myself
 PR kern/40474 Kernel panic after remounting raid root with softdep

 Retire softdep, pass 2. As discussed and later formally announced on the
 mailing lists.


 To generate a diff of this commit:
 cvs rdiff -r1.1191 -r1.1192 src/doc/CHANGES
 cvs rdiff -r1.8 -r1.9 src/lib/libp2k/p2k.c
 cvs rdiff -r1.29 -r1.30 src/sbin/fsck_lfs/lfs.c
 cvs rdiff -r1.65 -r1.66 src/sbin/mount/mount.8
 cvs rdiff -r1.13 -r1.14 src/sbin/newfs_lfs/make_lfs.c
 cvs rdiff -r1.37 -r1.38 src/sbin/tunefs/tunefs.8 src/sbin/tunefs/tunefs.c
 cvs rdiff -r1.1 -r1.2 src/sys/arch/vax/conf/VAX780
 cvs rdiff -r1.942 -r1.943 src/sys/conf/files
 cvs rdiff -r1.22 -r1.23 src/sys/kern/sys_aio.c
 cvs rdiff -r1.215 -r1.216 src/sys/kern/vfs_bio.c
 cvs rdiff -r1.368 -r1.369 src/sys/kern/vfs_subr.c
 cvs rdiff -r1.388 -r1.389 src/sys/kern/vfs_syscalls.c
 cvs rdiff -r1.122 -r1.123 src/sys/miscfs/specfs/spec_vnops.c
 cvs rdiff -r1.36 -r1.37 src/sys/miscfs/syncfs/sync_subr.c
 cvs rdiff -r1.2 -r1.3 src/sys/modules/ffs/Makefile
 cvs rdiff -r1.6 -r1.7 src/sys/rump/fs/lib/libffs/Makefile
 cvs rdiff -r1.9 -r1.10 src/sys/rump/include/rump/rump.h
 cvs rdiff -r1.1 -r0 src/sys/rump/librump/rumpkern/opt/opt_softdep.h
 cvs rdiff -r1.12 -r1.13 src/sys/rump/librump/rumpvfs/rump_vfs.c
 cvs rdiff -r1.3 -r1.4 src/sys/rump/librump/rumpvfs/vm_vfs.c
 cvs rdiff -r1.110 -r1.111 src/sys/sys/buf.h
 cvs rdiff -r1.200 -r1.201 src/sys/sys/vnode.h
 cvs rdiff -r1.18 -r1.19 src/sys/ufs/files.ufs
 cvs rdiff -r1.121 -r1.122 src/sys/ufs/ffs/ffs_alloc.c
 cvs rdiff -r1.51 -r1.52 src/sys/ufs/ffs/ffs_balloc.c
 cvs rdiff -r1.74 -r1.75 src/sys/ufs/ffs/ffs_extern.h
 cvs rdiff -r1.102 -r1.103 src/sys/ufs/ffs/ffs_inode.c
 cvs rdiff -r1.91 -r1.92 src/sys/ufs/ffs/ffs_snapshot.c
 cvs rdiff -r1.116 -r0 src/sys/ufs/ffs/ffs_softdep.c
 cvs rdiff -r1.23 -r0 src/sys/ufs/ffs/ffs_softdep.stub.c
 cvs rdiff -r1.242 -r1.243 src/sys/ufs/ffs/ffs_vfsops.c
 cvs rdiff -r1.110 -r1.111 src/sys/ufs/ffs/ffs_vnops.c
 cvs rdiff -r1.11 -r1.12 src/sys/ufs/ffs/ffs_wapbl.c
 cvs rdiff -r1.11 -r0 src/sys/ufs/ffs/softdep.h
 cvs rdiff -r1.11 -r1.12 src/sys/ufs/lfs/lfs_rfw.c
 cvs rdiff -r1.269 -r1.270 src/sys/ufs/lfs/lfs_vfsops.c
 cvs rdiff -r1.219 -r1.220 src/sys/ufs/lfs/lfs_vnops.c
 cvs rdiff -r1.55 -r1.56 src/sys/ufs/ufs/inode.h
 cvs rdiff -r1.27 -r1.28 src/sys/ufs/ufs/ufs_dirhash.c
 cvs rdiff -r1.60 -r1.61 src/sys/ufs/ufs/ufs_extern.h
 cvs rdiff -r1.77 -r1.78 src/sys/ufs/ufs/ufs_inode.c
 cvs rdiff -r1.100 -r1.101 src/sys/ufs/ufs/ufs_lookup.c
 cvs rdiff -r1.93 -r1.94 src/sys/ufs/ufs/ufs_readwrite.c
 cvs rdiff -r1.172 -r1.173 src/sys/ufs/ufs/ufs_vnops.c
 cvs rdiff -r1.4 -r1.5 src/sys/ufs/ufs/ufs_wapbl.c
 cvs rdiff -r1.93 -r1.94 src/sys/uvm/uvm_pager.c

 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

State-Changed-From-To: open->closed
State-Changed-By: dholland@NetBSD.org
State-Changed-When: Wed, 01 Apr 2009 04:08:19 +0000
State-Changed-Why:
softdep (softupdates) has been removed.


>Unformatted:

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