https://bugs.freedesktop.org/show_bug.cgi?id=47306
--- Comment #6 from Brian J. Murrell <[email protected]> 2012-03-15 05:22:42 PDT --- (In reply to comment #5) > Hello Gents Hi Emil, > I believe your issue was addressed previously in bug 43428, can you please > confirm with your distribution if mesa has the patches mentioned? That patch was not part of Ubuntu (Oneiric)'s distribution so I have applied it and built the packages and installed them. I got a similar segfault though, this time with screen not being null: Thread 1 (Thread 0xb1688720 (LWP 20539)): #0 nouveau_fence_update (screen=0x4071d000, flushed=1 '\001') at nouveau_fence.c:141 fence = <optimized out> next = 0x0 sequence = <optimized out> #1 0xaae1dc77 in nv50_default_flush_notify (chan=0x8c62a38) at nv50_context.c:68 nv50 = 0x8d11158 #2 0xad196f50 in nouveau_pushbuf_flush (chan=0x8c62a38, min=0) at ../../nouveau/nouveau_pushbuf.c:276 nvdev = <optimized out> nvchan = 0x8c62a38 nvpb = 0x8c62b00 req = {channel = 6, nr_buffers = 11, buffers = 147217232, nr_relocs = 17, nr_push = 1, relocs = 147258200, push = 147204932, suffix0 = 0, suffix1 = 0, vram_available = 243978240, gart_available = 536383488} i = <optimized out> ret = 0 __PRETTY_FUNCTION__ = "nouveau_pushbuf_flush" #3 0xaae1dc0e in FIRE_RING (chan=<optimized out>) at /usr/include/nouveau/nouveau_pushbuf.h:101 No locals. #4 nv50_flush (pipe=0xb014c500, fence=0x0) at nv50_context.c:46 screen = 0x8c62758 #5 0xaa973951 in st_flush (st=0xb01fb780, fence=0x0) at state_tracker/st_cb_flush.c:92 No locals. #6 0xaa973990 in st_glFlush (ctx=0xb01b9950) at state_tracker/st_cb_flush.c:126 st = 0xb01fb780 #7 0xaabb24f0 in _mesa_flush (ctx=0xb01b9950) at main/context.c:1656 No locals. #8 0xaabb2c0e in _mesa_Flush () at main/context.c:1688 ctx = 0xb01b9950 #9 0xb6aeb899 in MythRenderOpenGL::Flush(bool) () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #10 0xb6af3d1a in MythRenderOpenGL::CreateTexture(QSize, bool, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int) () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #11 0xb6ae98f3 in MythOpenGLPainter::GetTextureFromCache(MythImage*) () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #12 0xb6ae9da8 in MythOpenGLPainter::DrawImage(QRect const&, MythImage*, QRect const&, int) () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #13 0xb69f5a6f in MythUIImage::DrawSelf(MythPainter*, int, int, int, QRect) () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #14 0xb69ef0e4 in MythUIType::Draw(MythPainter*, int, int, int, QRect) () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #15 0xb69ef180 in MythUIType::Draw(MythPainter*, int, int, int, QRect) () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #16 0xb69ad068 in MythMainWindow::draw() () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #17 0xb69ad6f8 in MythMainWindow::drawScreen() () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #18 0xb69ad8bb in ?? () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #19 0xb5b0ef6e in QWidget::event(QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #20 0xb234ffe2 in QGLWidget::event(QEvent*) () from /usr/lib/i386-linux-gnu/libQtOpenGL.so.4 No symbol table info available. #21 0xb5ab4d84 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #22 0xb5aba1d8 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #23 0xb56e519e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4 No symbol table info available. #24 0xb5b0be1b in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #25 0xb5cf039e in QWidgetPrivate::repaint_sys(QRegion const&) () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #26 0xb5b01644 in QWidgetPrivate::syncBackingStore(QRegion const&) () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #27 0xb5b402e4 in ?? () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #28 0xb5b41488 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #29 0xb5b6d28c in ?? () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #30 0xb218925f in g_main_dispatch (context=0x8b17e70) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:2441 dispatch = 0xb5b6d0a0 was_in_call = 0 user_data = 0x0 callback = 0 cb_funcs = 0x0 cb_data = 0x0 current_source_link = {data = 0x8b18e68, next = 0x0} need_destroy = <optimized out> source = 0x8b18e68 current = 0x8b17410 i = <optimized out> #31 g_main_context_dispatch (context=0x8b17e70) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3011 No locals. #32 0xb2189990 in g_main_context_iterate (context=0x8b17e70, block=-1306950880, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3089 max_priority = 0 timeout = 0 some_ready = 1 nfds = <optimized out> allocated_nfds = <optimized out> fds = 0xa7e9d708 #33 0xb2189c2a in g_main_context_iteration (context=0x8b17e70, may_block=1) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3152 retval = <optimized out> #34 0xb5713ada in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4 No symbol table info available. #35 0xb5b6ce7a in ?? () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #36 0xb56e41dd in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4 No symbol table info available. #37 0xb56e4421 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4 No symbol table info available. #38 0xb56e919d in QCoreApplication::exec() () from /usr/lib/i386-linux-gnu/libQtCore.so.4 No symbol table info available. #39 0xb5ab2924 in QApplication::exec() () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #40 0x0806d97e in ?? () No symbol table info available. #41 0xb5311113 in __libc_start_main (main=0x806c160, argc=1, ubp_av=0xbfc52ba4, init=0x829c060, fini=0x829c0d0, rtld_fini=0xb77d0ba0, stack_end=0xbfc52b9c) at libc-start.c:226 result = <optimized out> unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1253629964, 0, 0, 0, -1459841158, 1082856303}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x1, 0x806fe74}, data = {prev = 0x0, cleanup = 0x0, canceltype = 1}}} not_first_call = <optimized out> #42 0x0806fe95 in ?? () No symbol table info available. Backtrace stopped: Not enough registers or memory available to unwind further Here's what gdb has to say at the moment of the crash: #0 nouveau_fence_update (screen=0x4071d000, flushed=1 '\001') at nouveau_fence.c:141 141 u32 sequence = screen->fence.update(&screen->base); (gdb) print screen $1 = (struct nouveau_screen *) 0x4071d000 (gdb) print *screen Cannot access memory at address 0x4071d000 So, while screen is not null, it does not seem to be pointing at valid memory either. -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ Nouveau mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/nouveau
