niceness buglet?

Riley Williams (rhw@BigFoot.Com)
Thu, 11 Feb 1999 22:32:05 +0000 (GMT)


Hi there.

I have to admit that I'm puzzled by this, and I don't know where else
to ask, so here goes...

One of my interests is in MUSH's (Multi-User SHells), and in relation
to one of them that I'm a regular on, I run what's called a bot that
pretends to be Eliza the Psychotherapist.

Since the current version thereof sometimes runs away with processor
time, I decided to 'nice' it to a low priority - and this is where the
problems started...

I can RELIABLY cause Eliza to coredump by simply running the following
command:

Q> nice -n 15 bot Amush.CX 4190

Note that "-n 15" as that is CRITICAL - any value other than 15 (at
least, those in the range 5 to 19) and Eliza runs fine - I'm currently
running her with 16 instead of 15 - but with 15 there, she coredumps
every time...

For reference, ver_linux produces the following:

-- Versions installed: (if some fields are empty or looks
-- unusual then possibly you have very old versions)
Linux ps.cus.umist.ac.uk 2.2.1 #1 Mon Feb 1 13:22:18 GMT 1999 i586 unknown
Kernel modules found
Gnu C 2.7.2.3
Binutils 2.9.1.0.4
Linux C Library 0.7.so*
Dynamic linker ldd (GNU libc) 2.0.7
Linux C++ Library 2.8.0*
Procps 1.2.7
Mount 2.7l
Net-tools 1.33
Kbd 0.94
Sh-utils 1.16

Best wishes from Riley.

---
 * ftp://ftp.MemAlpha.cx/pub/rhw/Linux
 * http://www.MemAlpha.cx/~rhw/kernel.versions.html

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