Jmap -heap on all OpenJDK 1.7.79+ on Linux x86_64 crash

[Andrew Haley]

On 19/04/17 00:45, Matthew Patton wrote:

>> I believe at one time it was possible to tell RPM to omit the
>> symbol table from stripping, but it seems this is no longer the
>> case. Other distributions suffer in the same way (I've observed it
>> on Gentoo as well).
> 
> Surely we just need to revert whatever was introduced in 1.7.80 to
> "helpfully" strip it and also put 'jmap' at least and perhaps
> 'jstack' back into the non-devel RPM, which if I'm not mistaken was
> also a change about the same time. Jmap in particular is frequently
> used in production to measure health of a JVM and jstack to capture
> vital information in the event of a (semi-)crash, and where a core
> file (for security or space reasons) may not be permitted at all or
> to persist for very long. 

We did look at this, but it would require some fairly complex changes
to RPM to allow us to selectively control debuginfo stripping.

I wonder if we could perhaps extract the small subset of debuginfo
into a separate before packaging.

> Yes, I'm sure developers like to use them too, but corporate
> security gets bent out of shape big time when it sees compilers and
> debuggers installed, so installing -devel is problematic.

Gosh, that problem hadn't even occurred to me.  It's a mad world.

Andrew.