Hi James, On Sat, Aug 23, 2014 at 7:05 AM, James Cameron <qu...@laptop.org> wrote: > With recent changes to Google Search JavaScript, searching terminates > Browse with a SIGSEGV, in WTF::dtoa. > > http://bugs.sugarlabs.org/ticket/4785 > > This is only seen on an XO-1, in 13.2.1, 13.2.0, all the way back to > 12.1.0. It is not seen on more recent XO laptops. > > On Fedora 20, with Sugar 0.102, and Browse-156, on kernel 3.10, does > similar, but the failure is SIGILL. Using gdb we find the failing > instructions are references to XMM registers: > > 0xabeda509: mov 0x4(%eax),%ebx > 0xabeda50c: cmp -0x8(%ebx),%ecx > 0xabeda50f: jae 0xabedbcde > => 0xabeda515: movsd (%ebx,%ecx,8),%xmm0 <= > 0xabeda51a: ucomisd %xmm0,%xmm0 > 0xabeda51e: jp 0xabedbcde > 0xabeda524: movd %xmm0,%eax > > The XO-1 with AMD Geode processor does not have these registers, so > the SIGILL is valid. > > So it would seem one way to fix this may be to rebuild WebKit without > this instruction stream. > > But first, I want to make sure I can rebuild WebKit. I've tried on a > Fedora 20 system to do this: > > yumdownloader --source webkitgtk3 > rpmrebuild --rebuild webkitgtk3-1.10.2-3.fc18.src.rpm > > But it fails with this: > > libtool: link: gcc -o > /root/rpmbuild/BUILD/webkitgtk-1.10.2/tmp-introspectHnbXap/.libs/WebKit-3.0 > -O2 -g1 -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector > --param=ssp-buffer-size=4 -m32 -march=i686 -mtune=atom > -fasynchronous-unwind-tables > -DLIBSOUP_I_HAVE_READ_BUG_594377_AND_KNOW_SOUP_PASSWORD_MANAGER_MIGHT_GO_AWAY > -O2 -Wl,-z -Wl,relro > /root/rpmbuild/BUILD/webkitgtk-1.10.2/tmp-introspectHnbXap/WebKit-3.0.o > -Wl,--export-dynamic -pthread -Wl,--export-dynamic -L. > /root/rpmbuild/BUILD/webkitgtk-1.10.2/.libs/libwebkitgtk-3.0.so > /root/rpmbuild/BUILD/webkitgtk-1.10.2/.libs/libjavascriptcoregtk-3.0.so > -lgmodule-2.0 -lrt -lgtk-3 -lgdk-3 -latk-1.0 -lpangocairo-1.0 > -lgdk_pixbuf-2.0 -lcairo-gobject -lpango-1.0 -lcairo -lsoup-2.4 -lgio-2.0 > -lgobject-2.0 -lglib-2.0 -pthread > /lib/libGL.so.1: undefined reference to `_glapi_tls_Dispatch' > /lib/libEGL.so.1: undefined reference to `wl_display_dispatch_queue_pending' > collect2: error: ld returned 1 exit status > linking of temporary binary failed: Command '['./doltlibtool', '--mode=link', > '--tag=CC', 'gcc', '-o', > '/root/rpmbuild/BUILD/webkitgtk-1.10.2/tmp-introspectHnbXap/WebKit-3.0', > '-export-dynamic', '-O2', '-g1', '-pipe', '-Wall', '-Wp,-D_FORTIFY_SOURCE=2', > '-fexceptions', '-fstack-protector', '--param=ssp-buffer-size=4', '-m32', > '-march=i686', '-mtune=atom', '-fasynchronous-unwind-tables', > '-DLIBSOUP_I_HAVE_READ_BUG_594377_AND_KNOW_SOUP_PASSWORD_MANAGER_MIGHT_GO_AWAY', > '-O2', '-Wl,-z,relro', > '/root/rpmbuild/BUILD/webkitgtk-1.10.2/tmp-introspectHnbXap/WebKit-3.0.o', > '-L.', '-lwebkitgtk-3.0', '-ljavascriptcoregtk-3.0', '-Wl,--export-dynamic', > '-pthread', '-lgmodule-2.0', '-lrt', '-lgtk-3', '-lgdk-3', '-latk-1.0', > '-lpangocairo-1.0', '-lgdk_pixbuf-2.0', '-lcairo-gobject', '-lpango-1.0', > '-lcairo', '-lsoup-2.4', '-lgio-2.0', '-lgobject-2.0', '-lglib-2.0']' > returned non-zero exit status 1 > make[1]: *** [WebKit-3.0.gir] Error 1 > make[1]: Leaving directory `/root/rpmbuild/BUILD/webkitgtk-1.10.2' > make: *** [all] Error 2 > error: Bad exit status from /var/tmp/rpm-tmp.vGFtGZ (%build)
I wonder if that's due to a newer mesa, I can have a look, or review/push any package updates needed to Fedora to fix this. Let me know how I can help fix this. Peter _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
