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[McIDAS #AOE-843254]: problem with DEV=T

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  • Subject: [McIDAS #AOE-843254]: problem with DEV=T
  • Date: Thu, 06 May 2010 14:46:42 -0600
Hi Owen,

Well, I have been poking around on gale for quite awhile now.  I can
easily/repeatedly cause the DEV=T error you reported, but I see no
apparent reason for it in McIDAS.  Also, I replicated your setup on
my workstation here at Unidata; I can _NOT_ reproduce the problem
on my machine!

The fact that things seem to run without problem on my machine
got me looking at the shared memory on gale.  I see that there
are several shared memory segments that are waiting to be deleted
(where the status is listed as 'dest'):

gale:[114]% ipcs

------ Shared Memory Segments --------
key        shmid      owner      perms      bytes      nattch     status      
0x00000000 56819712   root      777        135168     0                       
0x00000000 58982402   root      777        135168     0                       
0x00000000 172032004  root      777        135168     0                       
0x00000000 188317701  root      777        135168     0                       
0x00000000 194871302  root      777        135168     1                       
0x00000000 195166215  ocooper   600        393216     2          dest         
0x00000000 195198985  ocooper   600        393216     2          dest         
0x00000000 195035146  ocooper   600        877120     0                       
0x00000000 529235979  ocooper   777        14580      2          dest         
0x00000000 195231756  ocooper   600        393216     2          dest         
0x00000000 195264525  ocooper   600        196608     2          dest         
0x00000000 195297294  ocooper   600        393216     2          dest         
0x00000000 195330063  ocooper   600        393216     2          dest         
0x00000000 195362832  ocooper   600        393216     2          dest         
0x00000000 195395601  ocooper   600        393216     2          dest         
0x00000000 195428370  ocooper   600        196608     2          dest         
0x00000000 195461139  ocooper   600        393216     2          dest         
0x00090596 195592212  ocooper   666        258        1                       

------ Semaphore Arrays --------
key        semid      owner      perms      nsems     

------ Message Queues --------
key        msqid      owner      perms      used-bytes   messages   

This hints that there is a problem releasing shared memory, and that
is seemingly calling for a reboot of the machine.

Please call if you want to chat about this (303.497.8642).

Cheers,

Tom
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Ticket Details
===================
Ticket ID: AOE-843254
Department: Support McIDAS
Priority: Normal
Status: Closed