how to create a core dump after a failed parralle IO write

[F Verschuren]

Hi we have a zlinux server which occasionally has a kernel bug in async IO routines. What kerneltrap would produce a uasable coredump for further analysis. Can it be limited to just this one situation, I don't want a coredump for every async IO

[Steven E. Protter · Accepted solution]

Shalom,

By default linux systems will create dumps in the scenario you post.

How applications create core dumps:
http://www.novell.com/support/search.do?cmd=displayKC&docType=kc&externalId=3054866&sliceId=1&docTypeID=DT_TID_1_1&dialogID=12890938&stateId=0%200%2012894161

Controlling core dumps.

http://aplawrence.com/Linux/limit_core_files.html

SEP

[F Verschuren]

tanks we will try to test this.
aditional question
does tis also work for system kernel bugs (asspecialy in the i/o)?