mkhaw@teknowledge-vaxc.ARPA (Mike Khaw) (07/01/88)
We have a user (no, really, it wasn't me) who got a core dump with a
message about "IOT instruction" while running GNU Emacs 18.41 on a Sun
3/50 running SunOS 3.5.
The only reference I can find to IOT in the man files is in sigvec(2),
where it says under SIGIOT:
IOT trap (not generated on Suns)
!!! What's going on here?
Thanks,
Mike Khaw
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hardcopy: Teknowledge Inc, 1850 Embarcadero Rd, POB 10119, Palo Alto, CA 94303jr@bbn.com (John Robinson) (07/01/88)
In article <23550@teknowledge-vaxc.ARPA>, mkhaw@teknowledge-vaxc (Mike Khaw) writes: >We have a user (no, really, it wasn't me) who got a core dump with a >message about "IOT instruction" while running GNU Emacs 18.41 on a Sun >3/50 running SunOS 3.5. When emacs reaches an impossible condition, it calls the C library function abort. If you look at abort(3), you'll see that it generates a SIGIOT signal, which causes emacs to core dump. To debug it, run dbx (or your favorite debugger) on the core file and look at the stack. Have the source handy. I encountered an abort running under X11. But since the X11 code originated about version 18.49, I assume you aren't. You might want to try to get the current distribution. --
rich@oxtrap (K. Richard Magill) (07/06/88)
In article <23550@teknowledge-vaxc.ARPA>, mkhaw@teknowledge-vaxc (Mike Khaw) writes: >We have a user (no, really, it wasn't me) who got a core dump with a >message about "IOT instruction" while running GNU Emacs 18.41 on a Sun >3/50 running SunOS 3.5. Floating point binaries on a non-floating point sun? rich. --