On Mon, Aug 25, 2014 at 12:22:20PM +0100, Peter Robinson wrote:
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: mov0x4(%eax),%ebx
0xabeda50c: cmp-0x8(%ebx),%ecx
0xabeda50f: jae0xabedbcde
= 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.
Thanks. I guess you're saying dependent packages are not tested for
rebuildabillity when a package is released for update. Would using
mock have avoided this?
mesa package versions present in the builder are
mesa-libEGL-10.1.5-1.20140607.fc20.i686
mesa-libEGL-devel-10.1.5-1.20140607.fc20.i686
mesa-libgbm-10.1.5-1.20140607.fc20.i686
mesa-libGL-10.1.5-1.20140607.fc20.i686
mesa-libglapi-10.1.5-1.20140607.fc20.i686
mesa-libGL-devel-10.1.5-1.20140607.fc20.i686
full list at
http://dev.laptop.org/~quozl/z/1XM1IG.txt
--
James Cameron
http://quozl.linux.org.au/
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