miniruby segfaults when attempting to install lang/ruby19 or lang/ruby20 on ppc64

Harry Weppner harry.weppner at
Thu Jan 9 05:47:26 UTC 2014


I brought an older dual G5 Powermac back to life and installed FreeBSD 10.0-RC4 on it with a GENERIC ppc64 kernel. When installing lang/ruby19 or lang/ruby20 miniruby segfaults in libthr. Tested with both the default gcc42 as well as with gcc49.

Has anyone seen this issue before? T

Thanks & cheerio, Harry.

(gdb) bt
#0  handle_signal (actp=0xffffffffffbfa130, sig=11, info=0xffffffffffbfa690, ucp=0xffffffffffbfa1d0)
    at /usr/src/lib/libthr/thread/thr_sig.c:188
#1  0x00000000502f36ac in thr_sighandler (sig=11, info=0xffffffffffbfa690, _ucp=0xffffffffffbfa1d0)
    at /usr/src/lib/libthr/thread/thr_sig.c:183
#2  0xffffffffffffe188 in ?? ()

   │184     }                                                                                                      │
   │185                                                                                                            │
   │186     static void                                                                                            │
   │187     handle_signal(struct sigaction *actp, int sig, siginfo_t *info, ucontext_t *ucp)                       │
  >│188     {                                                                                                      │
   │189             struct pthread *curthread = _get_curthread();                                                  │

The specific instruction is:
  >│0x502f32ac <handle_signal+64>   stdu    r1,-1392(r1)                                                           │
   │0x502f32b0 <handle_signal+68>   ld      r0,0(r9)                                                               │
   │0x502f32b4 <handle_signal+72>   cmpdi   cr7,r0,0                                                               │

(gdb) x/x $r1-1392
0xffffffffffbf9b50:     Cannot access memory at address 0xffffffffffbf9b50

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