libkse & jdk14: signals(?) breakage

[Daniel Eischen]

On Wed, 25 Jun 2003, Alexey Zelkin wrote:

> hi,
> 
> Yesterday I have got to point then libkse & libthr testing
> reached top of my TODO list.  Results are not that I expected and
> wanted to get.
> 
> In my first expirement I have had 6 Jun's -CURRENT and very recent
> libkse and libthr.  In this case at jdk14 build attempt I have
> expirienced strange behaviour of both libs:  at compiling of big
> chunks of code java compiler stuck in "pause" mode forever.
> 
> Well, I have made clean build & install with most recent world,
> kernel and libkse and found that "pause" lockups are not repearing
> anymore, but something still broken.  While compiling of one of
> packages it's usual case then SIGSEGV is received by javac.  In
> libc_r case it is usually catched by signalHandler(), handled
> and continued.  But in libkse case signal is not even reached
> of signalHandler() routine.  As soon as I do 'continue' in gdb
> I get another SIGSEGV with below backtrace.
> 
> Looks like signals are still not really working in libkse.

David Xu is revamping signal handling (it also involves
some kernel changes).  Very alpha patches are at:

  http://people.freebsd.org/~davidxu/kse_sig/

They are not yet completely working, but might help.

-- 
Dan Eischen