I dont fully understand how this would work in the 8 byte case if memory
alignment was the issue.
Brian
On Tue, Mar 12, 2013 at 10:36 PM, Igor Galić <i.ga...@brainsware.org> wrote:
>
>
> ----- Original Message -----
> > Unfortunately this commit breaks my build and executable. FC 18.
> > --enable-debug and --enable-wccp.
> >
> > Building:
> >
> > autoreconf -i
>
> Should you `autoreconf -if` ?
>
> > fails.
> >
> > [amc@yuna ats]$ autoreconf -i
> > configure.ac:1115: warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call
> > detected in body
> > ../../lib/autoconf/lang.m4:194: AC_LANG_CONFTEST is expanded from...
> > ../../lib/autoconf/general.m4:2730: _AC_RUN_IFELSE is expanded
> > from...
> > ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
> > ../../lib/autoconf/general.m4:2749: AC_RUN_IFELSE is expanded from...
> > configure.ac:1115: the top level
> > configure.ac:1115: warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call
> > detected in body
> >
> > When I tried to run it with just a normal rebuild (I tried autoreconf
> > in case there was a configuration problem), I get
> >
> > Program received signal SIGSEGV, Segmentation fault.
> > [Switching to Thread 0x7ffff67fc700 (LWP 14023)]
> > 0x00007ffff7dd5a35 in ink_atomic_cas<__int128> (mem=0x7ffff6d05288,
> > prev=0x00000000000000000000000000000001,
> > next=0x000000000000000000007fffe0015dc1) at ink_atomic.h:153
> > 153 return __sync_bool_compare_and_swap(mem, prev, next);
> > (gdb) up
> > #1 0x00007ffff7dd57b9 in ink_atomiclist_push (l=0x7ffff6d05288,
> > item=0x7fffe0015dc0) at ink_queue.cc:481
> > 481 result = ink_atomic_cas((__int128_t*) & l->head,
> > head.data, item_pair.data);
> > (gdb) up
> > #2 0x00000000006c62e9 in AtomicSLL<UnixNetVConnection,
> > UnixNetVConnection::Link_read_enable_link>::push
> > (this=0x7ffff6d05288, c=0x7fffe0015dc0)
> > at ../../lib/ts/List.h:477
> > 477 void push(C * c) { ink_atomiclist_push(&al, c); }
> > (gdb) up
> > #3 0x00000000006c40ef in UnixNetVConnection::reenable
> > (this=0x7fffe0015dc0,
> > vio=0x7fffe0015ed0) at UnixNetVConnection.cc:721
> > 721 nh->read_enable_list.push(this);
> >
> > I don't see why it segfaults - in the debugger in frame 0 I can look
> > at mem and *mem without a problem. Does the 128 int have to be
> > naturally aligned?
> >
> > Sunday, March 10, 2013, 10:46:53 AM, you wrote:
> >
> > > I'm going to commit this patch today unless there are any last
> > > minute
> > > objections.
> >
> > > Brian
> >
> >
>
> --
> Igor Galić
>
> Tel: +43 (0) 664 886 22 883
> Mail: i.ga...@brainsware.org
> URL: http://brainsware.org/
> GPG: 6880 4155 74BD FD7C B515 2EA5 4B1D 9E08 A097 C9AE
>
>
