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DB2 - Problem description

Problem IC76252 Status: Closed

A LOAD FROM "/DEV/NULL/" WITH A TRAILING "/", INCORRECT
DEVICE NAME, CAUSES DB2 TO CRASH ON AIX SYSTEM.

product:
DB2 FOR LUW / DB2FORLUW / 910 - DB2
Problem description:
Load from "/dev/null/" crashes the instance.  If the trailing 
"/" is removed then it works just fine. The trailing "/" 
is incorrect and should not be put in the first place. 
. 
simple repro on AIX: 
. 
 
db2sampl 
db2 "load from /dev/null/ of del insert into department" 
. 
SQL2535W  Warning!  End of media on device "/dev/null/" has been 
reached. 
Please mount the next source media. 
Do you want to continue(c), terminate this device only(d), abort 
the utility(t) 
? (c/d/t) 
When you enter "d" to abort the utilility you get SQL1224N and 
instance crashes.. 
. 
you get the db2bm, the agent, and fm processes all crash with 
memory corruption, sig 11 with following stack: 
. 
-------Frame------ ------Function + Offset------ 
0x090000001E7665C0 sqloCrashOnCriticalMemoryValidationFailure + 
0x1C 
0x090000001E768FD4 
sqloCrashOnCriticalMemoryValidationFailure@glue1F0 + 0x1C 
0x090000001F0C167C sqlofmblkEx + 0xA0 
0x090000001EE10928 sqleAgentUCCleanup__FP15sql_static_data + 
0x80 
0x0900000020314B34 sqluTermLoadEDU__FPP20sqle_agent_privatecb + 
0x1B4 
0x090000002061802C 
@72@sqlulBMTerm__FPP14SQLU_BUFMAN_CBibP20sqle_agent_privatecb 
T2 + 0x3A4
Problem Summary:
Load from "/dev/null/" crashes the instance.  If the trailing 
"/" is removed then it works just fine. The trailing "/" 
is incorrect and should not be put in the first place. 
. 
simple repro on AIX: 
. 
db2sampl 
db2 "load from /dev/null/ of del insert into department" 
. 
SQL2535W  Warning!  End of media on device "/dev/null/" has been 
reached. 
Please mount the next source media. 
Do you want to continue(c), terminate this device only(d), abort 
the utility(t) 
? (c/d/t) 
When you enter "d" to abort the utilility you get SQL1224N and 
instance crashes.. 
. 
you get the db2bm, the agent, and fm processes all crash with 
memory corruption, sig 11 with following stack: 
. 
-------Frame------ ------Function + Offset------ 
0x090000001E7665C0 sqloCrashOnCriticalMemoryValidationFailure + 
0x1C 
0x090000001E768FD4 
sqloCrashOnCriticalMemoryValidationFailure@glue1F0 + 0x1C 
0x090000001F0C167C sqlofmblkEx + 0xA0 
0x090000001EE10928 sqleAgentUCCleanup__FP15sql_static_data + 
0x80 
0x0900000020314B34 sqluTermLoadEDU__FPP20sqle_agent_privatecb + 
0x1B4 
0x090000002061802C 
@72@sqlulBMTerm__FPP14SQLU_BUFMAN_CBibP20sqle_agent_privatecb 
T2 + 0x3A4
Local Fix:
do not put the erroneaus trailing "/" for /dev/null device.
available fix packs:
DB2 Version 9.1 Fix Pack 11  for Linux, UNIX and Windows
DB2 Version 9.1 Fix Pack 12  for Linux, UNIX and Windows

Solution
apar ic76252 
module engn_squ 
fixed >= v91 fpk10
Workaround
do not put the erroneaus trailing "/" for /dev/null device.
BUG-Tracking
forerunner  : APAR is sysrouted TO one or more of the following: IC76253 IC76254 
follow-up : 
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
09.05.2011
08.12.2011
08.12.2011
Problem solved at the following versions (IBM BugInfos)
9.1.FPk10
Problem solved according to the fixlist(s) of the following version(s)
9.1.0.11 FixList
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