Date: Wed, 8 Jan 2014 21:47:14 -0800 From: Harry Weppner <harry.weppner@gmx.net> To: ruby@freebsd.org, freebsd-ppc@freebsd.org Subject: miniruby segfaults when attempting to install lang/ruby19 or lang/ruby20 on ppc64 Message-ID: <1AAB79D6-9BDF-446A-8150-C9290FB341A7@gmx.net>
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Hi,
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 ?? ()
┌──/usr/src/lib/libthr/thread/thr_sig.c─────────────────────────────────────────────────────────────────────────┐
│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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