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Conference turris::digital_unix

Title:DIGITAL UNIX(FORMERLY KNOWN AS DEC OSF/1)
Notice:Welcome to the Digital UNIX Conference
Moderator:SMURF::DENHAM
Created:Thu Mar 16 1995
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:10068
Total number of notes:35879

9547.0. "new-wire-method=0 => free() dumps core" by SPANIX::JULIANR (ALPHAbet = Our bet on ALPHA) Fri Apr 18 1997 09:45

One of our customers, called Argentaria (the Spanish public banking 
corporation), has started to shift from HP-UX to Digital UNIX. 

They have already bought several 4100s in clusters for phone banking 
and one 8400 for a data warehouse. Several years ago they decided to use 
Sybase instead of Oracle.

Next week, they wish to put one of the 4100 into production, but a problem 
may end this happy story:

        - One of the programs which comprisse the phone banking application 
dumps core while doing a simple memory "free()" call if the new-wire-method 
kernel parameter is turned to 0, which is not the default in 4.0+. However, 
Sybase has recommeded to set that parameter to 0 in order to avoid database 
block corruptions.

What can we do ? When will a fix exist for this problem, which has already 
been QARed (#51470)?

Regards,

Juli�n Rodr�guez
Digital Spain - Technical Sales Support
E-mail: [email protected]
DTN: 874-4192
T.RTitleUserPersonal
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9547.1KITCHE::schottEric R. Schott USG Product ManagementFri Apr 18 1997 10:0028
>
>        - One of the programs which comprisse the phone banking application 
>dumps core while doing a simple memory "free()" call if the new-wire-method 
>kernel parameter is turned to 0, which is not the default in 4.0+. However, 
>Sybase has recommeded to set that parameter to 0 in order to avoid database 
>block corruptions.
>
>What can we do ? When will a fix exist for this problem, which has already 
>been QARed (#51470)?

If you need a patch, you should file a CLD...

QARs get done "in due time"...if you have a customer issue, a
CLD or IPMT should be filed.

You should set new-wire-method to 0 as there is a bug when it is
set to 1 currently.

Are you sure the program is not free()ing something incorrectly??


>
>Regards,
>
>Juli�n Rodr�guez
>Digital Spain - Technical Sales Support
>E-mail: [email protected]
>DTN: 874-4192
9547.2QAR 51470 does not appear to be applicableRUSURE::DONOVANJohn Donovan CVG Tools 285-2673Tue Apr 22 1997 15:2010
Hello Julian:

There is nothing in the change of the new-wire-method that should cause an 
application to dump core. You will really need to check the customer's 
application. The qar that you mentioned, 51470, is for a kernel panic not 
an application dumping core.

John Donovan
kamlia::donovan
[email protected]