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パッチ名: PHCO_36380
パッチ摘要: s700_800 11.23 fsck_hfs(1M)累積パッチ、iSCSIサポート
作成日: 07/04/04
公開日: 07/05/22
ハードウェアプラットフォームおよびOSリリース:
s700: 11.23
s800: 11.23
現象:
PHCO_36380:
(SR:8606434144 CR:JAGaf92638) 重複
(SR:8606475581 CR:JAGag29920)
fsck_hfsが不正にディレクトリのサイズを縮小するため、ディレクトリが破損
することがあります。fsckの出力は次のように表示されます。
** /dev/vg00/berndb
** Last Mounted on /bernd
** Phase 1 - Check Blocks and Sizes
INCORRECT BLOCK COUNT I=832 (568 should be 96)
CORRECT? yes
** Phase 2 - Check Pathnames
** Phase 3 - Check Connectivity
** Phase 4 - Check Reference Counts
** Phase 5 - Check Cyl groups
11744 files, 0 icont, 578 used, 800233 free
(9 frags, 100028 blocks)
ファイルシステムをマウントするか、別のfsckを実行すると、ファイルシステ
ム内に親なしファイル/サブディレクトリがあることがわかります。
問題点の説明:
PHCO_36380:
(SR:8606434144 CR:JAGaf92638) 重複
(SR:8606475581 CR:JAGag29920)
ブロック数の計算に問題があったため、fsckは不正に間接ブロックを1個削除
することによってディレクトリファイルを縮小していました。ディレクトリの
サイズがファイルシステムブロックサイズの倍数の場合、fsckが計算する間接
ブロック数は実際の間接ブロック数より多くなっていました。その結果、最後
のディレクトリブロックがNULLを指すことになるため、fsckは、ディレクトリ
内にホールがあるとみなして、完全な間接ブロックをゼロ化していました。
解決方法:
間接ブロック数を正しく計算するようにコードを修正しました。
-----------------------------------------------------------------------------
Patch Name: PHCO_36380
Patch Description: s700_800 11.23 fsck_hfs(1M) cumulative patch, iSCSI support
Creation Date: 07/04/04
Post Date: 07/05/22
Hardware Platforms - OS Releases:
s700: 11.23
s800: 11.23
Products: N/A
Filesets:
OS-Core.UX2-CORE,fr=B.11.23,fa=HP-UX_B.11.23_IA,v=HP
OS-Core.UX2-CORE,fr=B.11.23,fa=HP-UX_B.11.23_PA,v=HP
Automatic Reboot?: No
Status: General Release
Critical:
Yes
PHCO_36380: CORRUPTION
Category Tags:
defect_repair general_release critical corruption
Path Name: /hp-ux_patches/s700_800/11.X/PHCO_36380
Symptoms:
PHCO_36380:
( SR:8606434144 CR:JAGaf92638 ) Duplicate
( SR:8606475581 CR:JAGag29920 )
fsck_hfs may corrupt directories by incorrectly truncating
the size. The output from fsck will be as shown:
** /dev/vg00/berndb
** Last Mounted on /bernd
** Phase 1 - Check Blocks and Sizes
INCORRECT BLOCK COUNT I=832 (568 should be 96)
CORRECT? yes
** Phase 2 - Check Pathnames
** Phase 3 - Check Connectivity
** Phase 4 - Check Reference Counts
** Phase 5 - Check Cyl groups
11744 files, 0 icont, 578 used, 800233 free
(9 frags, 100028 blocks)
After mounting or another invocation of fsck we may find
orphaned files or subdirectories in the filesystem.
Defect Description:
PHCO_36380:
( SR:8606434144 CR:JAGaf92638 ) Duplicate
( SR:8606475581 CR:JAGag29920 )
Fsck was incorrectly truncating directory files by removing
an indirect block due to a problem in calculating the
number of blocks. The number of indirect blocks
calculated by fsck was greater than the actual number of
indirect blocks when the size of the directory is an exact
multiple to the filesystem block size. Thus fsck thinks
that there are holes in the directory as the last directory
block would point to NULL and would hence zero out the
complete indirect block.
Resolution:
The fix has been added to calculate the correct number of
indirect blocks.
Enhancement:
No
SR:
8606475581 8606434144
Patch Files:
OS-Core.UX2-CORE,fr=B.11.23,fa=HP-UX_B.11.23_IA,v=HP:
/sbin/fs/hfs/fsck
OS-Core.UX2-CORE,fr=B.11.23,fa=HP-UX_B.11.23_PA,v=HP:
/sbin/fs/hfs/fsck
what(1) Output:
OS-Core.UX2-CORE,fr=B.11.23,fa=HP-UX_B.11.23_IA,v=HP:
/sbin/fs/hfs/fsck:
fsck.c $Date: 2007/04/02 11:50:26 $Revision: r11.23/
1 PATCH_11.23 (PHCO_36380)
$Revision: @(#) fsck R11.23_BL2007_0404_11 PATCH_11.
23 PHCO_36380
OS-Core.UX2-CORE,fr=B.11.23,fa=HP-UX_B.11.23_PA,v=HP:
/sbin/fs/hfs/fsck:
$Revision: 92453-07 linker linker crt0.o B.11.16.01
030415 $
fsck.c $Date: 2007/04/02 11:50:26 $Revision: r11.23/
1 PATCH_11.23 (PHCO_36380)
$Revision: @(#) fsck R11.23_BL2007_0404_11 PATCH_11.
23 PHCO_36380
$ Internal_Unsupported_Version Mar 1 2007 21:53:52
$
cksum(1) Output:
OS-Core.UX2-CORE,fr=B.11.23,fa=HP-UX_B.11.23_IA,v=HP:
3271134051 847948 /sbin/fs/hfs/fsck
OS-Core.UX2-CORE,fr=B.11.23,fa=HP-UX_B.11.23_PA,v=HP:
2358314473 495616 /sbin/fs/hfs/fsck
Patch Conflicts: None
Patch Dependencies: None
Hardware Dependencies: None
Other Dependencies: None
Supersedes: None
Equivalent Patches: None
Patch Package Size: 560 KBytes
Installation Instructions:
Please review all instructions and the Hewlett-Packard
SupportLine User Guide or your Hewlett-Packard support terms
and conditions for precautions, scope of license,
restrictions, and, limitation of liability and warranties,
before installing this patch.
------------------------------------------------------------
1. Back up your system before installing a patch.
2. Login as root.
3. Copy the patch to the /tmp directory.
4. Move to the /tmp directory and unshar the patch:
cd /tmp
sh PHCO_36380
5. Run swinstall to install the patch:
swinstall -x autoreboot=true -x patch_match_target=true \
-s /tmp/PHCO_36380.depot
By default swinstall will archive the original software in
/var/adm/sw/save/PHCO_36380. If you do not wish to retain a
copy of the original software, include the patch_save_files
option in the swinstall command above:
-x patch_save_files=false
WARNING: If patch_save_files is false when a patch is installed,
the patch cannot be deinstalled. Please be careful
when using this feature.
For future reference, the contents of the PHCO_36380.text file is
available in the product readme:
swlist -l product -a readme -d @ /tmp/PHCO_36380.depot
To put this patch on a magnetic tape and install from the
tape drive, use the command:
dd if=/tmp/PHCO_36380.depot of=/dev/rmt/0m bs=2k
Special Installation Instructions: None
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