Vexing 10.5.6 file system bugs causing crashes; wose with Server OS 10.5.x

We continue to experience occasional MacOS 10.5.6 data volume instabilities. Just today, the system reported that it could not repair a purely archival data volume at a time when I was not accessing the volume and had not asked the OS to 'repair' it.
Then when manually running a repair on that same data volume in Disk Utility, storage services caused a kernel panic crash.
This problem was more prevalent when I tried the server version of Mac OS 10.5.6, where the OS caused disk volume corruption on the dedicated TimeMachine backup drive, and then started to crash frequently in the face of that self-induced corruption.
There was no disk volume corruption and no crashes before 10.5.6.
I would like to know why there should never be a file system condition on data volumes that would induce the entire OS to crash. I would completely understand a forced dismount of the corrupted volumes perhaps, or continuing in a read-only mode until the impacted volume could be repaird, BUT NOT AN OS CRASH. Even attempting to use the repair function on the unmounted volume would cause a crash.
The reason I know this is a file system bug and not the hardware is that the same system can endlessly zero out the data on the same drives, copy large test files to & from the drives, etc. The only situation where these file system crashes happen is with high file counts as one would encounter on a backup drive or on a data archive drive.

This evening OS 10.5.6 reported that Time Machine could not write to its target backup volume on one of the new 1.5TB drives...the nightmare cycle of
1. OS 10.5.6 causes volume corruption
2. OS 10.5.6 unable to repair volume corruption, crashing instead
3. OS 10.5.6 crashes over and over as it tries to auto-mount the volume
4. hard drive has to be physically ejected and wiped using a WINDOWS system so that it can be used again!
This is a sickening tale of disk corruption woe that started with the OS 10.5.6 update.
As fast as I opened an AppleCare support case on this issue, they were closing it behind my back without resolving the issue.
The kernel panics related to the volume mount problem are simply outragrous:
"jnl: mod block start: buffsize 512 not a multiple of block size 4096\n"
KERNEL PANICS SHOULD NEVER HAPPEN DUE TO A VOLUME MOUNT ERROR---EVER.
And yet I see in the support database that this is a recurring theme that has been seen in other OS storage situations, including Xserve storage where the bug would cause much more business damage.
I want this fixed NOW.

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Hi
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this error shows that web server is unable to create a directory under SUNWwbsvr folder. Any hints pls?
thanks!

sorry this error is while creating a new server instance - not a new virtual server.
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Peter

Hi Peter,
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-TP
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Dell Inspiron Other OS

There was an even earlier build than the two mentioned.
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Gedit and file-roller unresponsive caused by theme with gtk 3.6.1

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Edit:
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Last edited by purplerob (2012-11-02 20:16:54)

amadar wrote:
I am also having this severe memory leak with Gedit. The theme I'm using is called "Delorean" (dark) and has animations (buttons animate from released to pressed, pretty nice). Let me see if finding a theme without animations fixes the problem for me too...
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fornoude wrote:
Hi Tom,
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Thanks,

How to Create a OLAP Cube in DEV using SSAS from Raw file system backup from Production? I dont have a .abf file available. Two paritions in production are missing data. We were able to get back file system backup which contains the files for these two paritions.
How do I create a cube in Dev using this file system backup.
we are on SQL Server 2008R2.
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Clean up file system size

Hi,
I found   /dev/shm file system utilization is more in DB server as below. Please help me to reduce the space.
$ df -kh
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/root_vg-rootvol
38G 3.0G   33G   9% /
tmpfs 7.8G 7.1G 792M 91% /dev/shm
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I don’t know what these files are.
-rw-r-----. 1 oracle oinstall 16777216 Apr 18 23:04 ora_SAPLAT02_1245213_2
-rw-r-----. 1 oracle oinstall 16777216 Apr 18 23:18 ora_SAPLAT02_1245213_3
-rw-r-----. 1 oracle oinstall 16777216 Apr 18 23:38 ora_SAPLAT02_1245213_4
-rw-r-----. 1 oracle oinstall 16777216 Apr 18 23:34 ora_SAPLAT02_1245213_5
-rw-r-----. 1 oracle oinstall 16777216 Apr 18 23:15 ora_SAPLAT02_1245213_6
-rw-r-----. 1 oracle oinstall 16777216 Apr 18 23:34 ora_SAPLAT02_1245213_7
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4.0M    ora_COGNOS_917525_0
4.0M    ora_COGNOS_917525_1
1.6M    ora_COGNOS_917525_2
0       ora_COGNOS_950294_0
0       ora_COGNOS_950294_1
0       ora_COGNOS_950294_10
4.0M    ora_COGNOS_950294_100
4.0M    ora_COGNOS_950294_101
4.0M    ora_COGNOS_950294_102
4.0M    ora_COGNOS_950294_103
4.0M    ora_COGNOS_950294_104
4.0M    ora_COGNOS_950294_105
4.0M    ora_COGNOS_950294_106
4.0M    ora_COGNOS_950294_107
Regards,
Bala

2790985 wrote:
Hi,
I found   /dev/shm file system utilization is more in DB server as below. Please help me to reduce the space.
$ df -kh
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/root_vg-rootvol
38G 3.0G   33G   9% /
tmpfs 7.8G 7.1G 792M 91% /dev/shm
Files under /dev/shm
I don’t know what these files are.
-rw-r-----. 1 oracle oinstall 16777216 Apr 18 23:04 ora_SAPLAT02_1245213_2
-rw-r-----. 1 oracle oinstall 16777216 Apr 18 23:18 ora_SAPLAT02_1245213_3
-rw-r-----. 1 oracle oinstall 16777216 Apr 18 23:38 ora_SAPLAT02_1245213_4
-rw-r-----. 1 oracle oinstall 16777216 Apr 18 23:34 ora_SAPLAT02_1245213_5
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-rw-r-----. 1 oracle oinstall 16777216 Apr 18 23:34 ora_SAPLAT02_1245213_7
Files under /dev/shm with sizes
oracle@server01 /dev/shm
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4.0M    ora_COGNOS_917525_0
4.0M    ora_COGNOS_917525_1
1.6M    ora_COGNOS_917525_2
0       ora_COGNOS_950294_0
0       ora_COGNOS_950294_1
0       ora_COGNOS_950294_10
4.0M    ora_COGNOS_950294_100
4.0M    ora_COGNOS_950294_101
4.0M    ora_COGNOS_950294_102
4.0M    ora_COGNOS_950294_103
4.0M    ora_COGNOS_950294_104
4.0M    ora_COGNOS_950294_105
4.0M    ora_COGNOS_950294_106
4.0M    ora_COGNOS_950294_107
Regards,
Bala
why do you think the current value is a problem?
what will be gained by making percentage smaller?
reduce value of PROCESSES parameter
post results of command below
ls -l /dev/shm
explain what you learned from what you saw
What do you see when Oracle DB has been shutdown?

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Seeking for an early help
Server Description
Database - ORACLE - 9.2.0.7.0
Operating System - AIX
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Thanks & Regards
Shishir

Hi,
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Regards
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Edited by: user10090654 on Oct 4, 2011 4:50 AM

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Best Regards,
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Thanks,
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Hi,
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Vexing 10.5.6 file system bugs causing crashes; wose with Server OS 10.5.x

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