On 08/26/2014 08:03, Ralf Baechle wrote: > On Tue, Aug 26, 2014 at 07:06:56AM -0400, Joshua Kinard wrote: > >> o32 userland is the primary on both systems. However, the last SIGILL was >> under the 64k PAGE_SIZE kernel inside of an n32 chroot compiling the 'boost' >> package on the Octane, which I restarted that and it's not complained since. >> Also got SIGILL on the 16k PAGE_SIZE kernel when I booted 16k PAGE_SIZE the >> first time and ran 'ps'. Subsequent runs of 'ps' didn't reproduce the >> error. Also saw SIGILLs in the bootlog of the 16k PAGE_SIZE kernel when >> "rm" was ran once (couldn't reproduce) and when mdadm tried to put one of >> the arrays back together. Subsequent runs using similar argument lines >> don't reproduce once I got to a root shell. >> >> Being it's a Gentoo install...the o32 userland is pretty fresh. Especially >> on the Octane, where I literally rebuilt the old userland over 2-3 times >> just to make sure all the old 5-year cruft was gone. The n32 userland >> chroot is brand-spanking new. gcc-4.7.x only for now on both, because of >> PR61538 in gcc. Latest binutils. >> >> The O2 is chugging away happily so far in updating a bunch of packages. So >> I am leaning towards this being another quirk I have to hunt down in the >> Octane's code again. There isn't much in the Octane-specific code that >> deals with memory, though -- it seems the higher-level MIPS memory code >> handles most things just fine. > > Can you enable core dumps? I'm wondering about the EPC of the crashed > process. If it's at a function entry or the beginning of a page that > might indicate there is an issue with flushing caches after the containing > page got loaded. Also interesting to know if this possibly happened in a > signal trampoline or VDSO. > > These are just the usual suspects - nothing indicates this case is actually > related. (Missed the reply all on the last one) Enabled coredumps and got the 'shash' program to fail a second time (first program to do so)...so I'll rebuild that with debugging symbols and try to trip it up again later on. Is a core file from a binary w/o debugging of any value? -- Joshua Kinard Gentoo/MIPS kumba@xxxxxxxxxx 4096R/D25D95E3 2011-03-28 "The past tempts us, the present confuses us, the future frightens us. And our lives slip away, moment by moment, lost in that vast, terrible in-between." --Emperor Turhan, Centauri Republic
