Red Hat Bugzilla – Bug 426314
"11614 Illegal instruction" at runtime
Last modified: 2009-07-07 03:21:39 EDT
Description of problem:
I have observed an failure building openvrml 0.17.0 in "check" when a particular test gets run. When
running the browser test, it fails with "11614 Illegal instruction", as can be seen in the linked build log.
Version-Release number of selected component (if applicable):
Created attachment 290077 [details]
Test from openvrml that, when run, demonstrates the failure
Why are you filing this against gcc? That's preliminary.
You as package maintainer should debug this, see under gdb on which illegal insn
it died and how the code branched there. SIGILL can be because say SSEx,
Altivec, ... optimized code executed on CPU which doesn't support it, or calling
through an uninitialized function pointer, or memory corruption in the program
which corrupts some pointer or vtable, it can be bogus inline asm, and many
other things. Of course it can be a gcc bug, but that's far less likely than
the other possibilities.
Please debug this and only if you come up with with enough justifications
pointing to GCC you can reassign to gcc. E.g. AFAIK koji buildboxes don't
support Altivec at all.
I filed this against gcc because it's only occurring on ppc. As such, it seems unlikely that it's an openvrml
bug. openvrml doesn't include processor-specific code.
It could be a bug in one of openvrml's dependencies; but the only dependency exercised by this test is
boost. So that is a possibility.
Also, I wasn't aware until a few moments ago that I could get shell access on a ppc machine to test this.
Since apparently I can, I will look into it.
Hm, builds fine on F8... eventually. Will try again in mock for rawhide.
Changing version to '9' as part of upcoming Fedora 9 GA.
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This is no longer appearing as of Fedora 11/openvrml-0.18.2-1 (should appear in testing soon).
As there haven't been changes to the parts of OpenVRML's code where this was failing, a (now fixed) compiler bug does not seem terribly far fetched.