[webkit-dev] ASSERT crashes on arm platform

Gustavo Chaves glima at profusion.mobi
Thu Apr 30 10:57:35 PDT 2009 

Hi, all.

I'm yet another guy dealing with an arm box (set-top box), which has:
- XScale3 processor
- glibc 2.3.6
- libstdc++ 6.0.3
- all compiled with gcc 3.4.5

I'm working with the efl port of webkit and I have two bugs which only
happen on the arm box (never happened on
the x86 same source build): two ASSERT macros are being triggered. One
is at WebCore/page/FrameView.cpp:1227
(ASSERT(!m_isPainting)) and the other lies on
WebCore/platform/KURL.cpp:320 (ASSERT(url == m_string)). This second
one is triggered by some url forms (no trailing slash, for example).
Having checked that code, I'm not sure *why*
that ASSERT is there, so I'm asking for possible help by who knows it
better. The other crash looks like a race
condition but it is difficult to write a test case to always reproduce
the bug. Below are backtraces for each of
the problems cited.

Thanks in advance.

#0  0x4122e0a8 in KURL (this=0xbea13a2c, url=@0xbea13a28) at
WebCore/platform/KURL.cpp:320
#1  0x40c4a5f8 in EWebFrame::load (this=0x33288, uri=0xa0ba0
"http://www.google.com") at WebKit/efl/Api/ewebframe.cpp:116
#2  0x40c4e754 in EWebView::load (this=0x30328, uri=0xa0ba0
"http://www.google.com") at WebKit/efl/Api/ewebview.cpp:207
#3  0x40c53c8c in _callback_webview_load_url (data=0x30350) at
WebKit/efl/Api/ewebkit.cpp:147
#4  0x425ab924 in _ecore_idler_call () from
/l/p/tecsys/inst-root-285.webkit/usr/local/lib/libecore.so.0
#5  0x425ae7d0 in _ecore_main_loop_iterate_internal () from
/l/p/tecsys/inst-root-285.webkit/usr/local/lib/libecore.so.0
#6  0x425ae9a4 in ecore_main_loop_begin () from
/l/p/tecsys/inst-root-285.webkit/usr/local/lib/libecore.so.0
#7  0x0000a04c in main ()


============================================================


#0  0x411d8af8 in WebCore::FrameView::paintContents (this=0x182930,
p=0xbef61e4c, rect=@0xbef61e08)
    at WebCore/page/FrameView.cpp:1227
#1  0x41240630 in WebCore::ScrollView::paint (this=0x182930,
context=0xbef61e4c, rect=@0xbef61e8c)
    at WebCore/platform/ScrollView.cpp:693
#2  0x40c4ac24 in EWebFrame::render (this=0x33288, cr=0x2400c8,
rect=@0xbef61e8c) at WebKit/efl/Api/ewebframe.cpp:168
#3  0x40c508ac in EWebPage::paint (this=0x30948, cr=0x2400c8, rect=
        {m_location = {m_x = 627, m_y = 187}, m_size = {m_width = 17,
m_height = 23}}) at WebKit/efl/Api/ewebpage.cpp:232
#4  0x40c45600 in RepaintQueue::process (this=0x30b60,
surface=0x30948, cr=0x2400c8)
    at WebKit/efl/EvasSupport/eobject.cpp:114
#5  0x40c46078 in _eobject_recalculate (o=0x30970) at
WebKit/efl/EvasSupport/eobject.cpp:307
#6  0x425257a0 in evas_call_smarts_calculate () from
/l/p/tecsys/inst-root-285.webkit/usr/local/lib/libevas.so.0
#7  0x4253e3f0 in evas_render_updates_internal () from
/l/p/tecsys/inst-root-285.webkit/usr/local/lib/libevas.so.0
#8  0x414b2bf4 in WebCore::RenderThemeEfl::syncWidgetState
(this=0x424fa8d4, type=WebCore::TextField, stateMask=8)
    at WebCore/platform/efl/RenderThemeEfl.cpp:75
#9  0x414b137c in WebCore::RenderThemeEfl::createWidgetImage
(this=0x424fa8d4, type=WebCore::TextField, stateMask=8,
    i=@0xbef62174, rect=@0xbef62068) at
WebCore/platform/efl/RenderThemeEfl.cpp:280
#10 0x414b1c98 in WebCore::RenderThemeEfl::paintTextField
(this=0x424fa8d4, o=0x261504, i=@0xbef62174, rect=@0xbef62068)
    at WebCore/platform/efl/RenderThemeEfl.cpp:391
#11 0x4143689c in WebCore::RenderTheme::paintBorderOnly
(this=0x424fa8d4, o=0x261504, paintInfo=@0xbef62174, r=@0xbef62068)
    at WebCore/rendering/RenderTheme.cpp:307
#12 0x4136f154 in WebCore::RenderBox::paintBoxDecorations
(this=0x261504, paintInfo=@0xbef62174, tx=472, ty=101)
    at WebCore/rendering/RenderBox.cpp:680
#13 0x413383d8 in WebCore::RenderBlock::paintObject (this=0x261504,
paintInfo=@0xbef62174, tx=472, ty=101)
    at WebCore/rendering/RenderBlock.cpp:1752
#14 0x41337338 in WebCore::RenderBlock::paint (this=0x261504,
paintInfo=@0xbef62174, tx=472, ty=101)
    at WebCore/rendering/RenderBlock.cpp:1603
#15 0x4142ff9c in WebCore::RenderTextControlSingleLine::paint
(this=0x261504, paintInfo=@0xbef62174, tx=469, ty=98)
    at WebCore/rendering/RenderTextControlSingleLine.cpp:197
#16 0x41315d74 in WebCore::InlineBox::paint (this=0x3117f4,
paintInfo=@0xbef621c0, tx=469, ty=98)
    at WebCore/rendering/InlineBox.cpp:150
#17 0x4131b2bc in WebCore::InlineFlowBox::paint (this=0x311834,
paintInfo=@0xbef622d4, tx=469, ty=98)
    at WebCore/rendering/InlineFlowBox.cpp:669
#18 0x41450948 in WebCore::RootInlineBox::paint (this=0x311834,
paintInfo=@0xbef622d4, tx=469, ty=98)
    at WebCore/rendering/RootInlineBox.cpp:184
#19 0x413c68ec in WebCore::RenderLineBoxList::paint (this=0x260e50,
renderer=0x260de4, paintInfo=@0xbef62750, tx=469, ty=98)
    at WebCore/rendering/RenderLineBoxList.cpp:203
#20 0x41337bc4 in WebCore::RenderBlock::paintContents (this=0x260de4,
paintInfo=@0xbef62750, tx=469, ty=98)
    at WebCore/rendering/RenderBlock.cpp:1689
#21 0x41338524 in WebCore::RenderBlock::paintObject (this=0x260de4,
paintInfo=@0xbef62750, tx=469, ty=98)
    at WebCore/rendering/RenderBlock.cpp:1775
#22 0x41414088 in WebCore::RenderTableCell::paint (this=0x260de4,
paintInfo=@0xbef62750, tx=469, ty=98)
    at WebCore/rendering/RenderTableCell.cpp:663
#23 0x4141ef40 in WebCore::RenderTableSection::paint (this=0x3197f4,
paintInfo=@0xbef62750, tx=405, ty=18)
    at WebCore/rendering/RenderTableSection.cpp:1029
#24 0x4140a3f4 in WebCore::RenderTable::paint (this=0x47f7e4,
paintInfo=@0xbef627b0, tx=405, ty=18)
    at WebCore/rendering/RenderTable.cpp:474
#25 0x41337edc in WebCore::RenderBlock::paintChildren (this=0x3fecec,
paintInfo=@0xbef628b4, tx=405, ty=18)
    at WebCore/rendering/RenderBlock.cpp:1715
#26 0x41337bdc in WebCore::RenderBlock::paintContents (this=0x3fecec,
paintInfo=@0xbef628b4, tx=405, ty=18)
    at WebCore/rendering/RenderBlock.cpp:1691
#27 0x41338524 in WebCore::RenderBlock::paintObject (this=0x3fecec,
paintInfo=@0xbef628b4, tx=405, ty=18)
    at WebCore/rendering/RenderBlock.cpp:1775
#28 0x41337338 in WebCore::RenderBlock::paint (this=0x3fecec,
paintInfo=@0xbef628b4, tx=405, ty=18)
    at WebCore/rendering/RenderBlock.cpp:1603
#29 0x41337edc in WebCore::RenderBlock::paintChildren (this=0x15f70c,
paintInfo=@0xbef62d30, tx=400, ty=13)
    at WebCore/rendering/RenderBlock.cpp:1715
#30 0x41337bdc in WebCore::RenderBlock::paintContents (this=0x15f70c,
paintInfo=@0xbef62d30, tx=400, ty=13)
    at WebCore/rendering/RenderBlock.cpp:1691
#31 0x41338524 in WebCore::RenderBlock::paintObject (this=0x15f70c,
paintInfo=@0xbef62d30, tx=400, ty=13)
    at WebCore/rendering/RenderBlock.cpp:1775
#32 0x41414088 in WebCore::RenderTableCell::paint (this=0x15f70c,
paintInfo=@0xbef62d30, tx=400, ty=13)
    at WebCore/rendering/RenderTableCell.cpp:663
#33 0x4141ef40 in WebCore::RenderTableSection::paint (this=0x14fa74,
paintInfo=@0xbef62d30, tx=400, ty=13)
    at WebCore/rendering/RenderTableSection.cpp:1029
#34 0x4140a3f4 in WebCore::RenderTable::paint (this=0x14e9ec,
paintInfo=@0xbef62d90, tx=400, ty=13)
    at WebCore/rendering/RenderTable.cpp:474
#35 0x41337edc in WebCore::RenderBlock::paintChildren (this=0x15257c,
paintInfo=@0xbef62e94, tx=400, ty=13)
    at WebCore/rendering/RenderBlock.cpp:1715
#36 0x41337bdc in WebCore::RenderBlock::paintContents (this=0x15257c,
paintInfo=@0xbef62e94, tx=400, ty=13)
    at WebCore/rendering/RenderBlock.cpp:1691
#37 0x41338524 in WebCore::RenderBlock::paintObject (this=0x15257c,
paintInfo=@0xbef62e94, tx=400, ty=13)
    at WebCore/rendering/RenderBlock.cpp:1775
#38 0x41337338 in WebCore::RenderBlock::paint (this=0x15257c,
paintInfo=@0xbef62e94, tx=400, ty=13)
    at WebCore/rendering/RenderBlock.cpp:1603
#39 0x41337edc in WebCore::RenderBlock::paintChildren (this=0x248e04,
paintInfo=@0xbef63310, tx=397, ty=10)
    at WebCore/rendering/RenderBlock.cpp:1715
#40 0x41337bdc in WebCore::RenderBlock::paintContents (this=0x248e04,
paintInfo=@0xbef63310, tx=397, ty=10)
    at WebCore/rendering/RenderBlock.cpp:1691
#41 0x41338524 in WebCore::RenderBlock::paintObject (this=0x248e04,
paintInfo=@0xbef63310, tx=397, ty=10)
    at WebCore/rendering/RenderBlock.cpp:1775
#42 0x41414088 in WebCore::RenderTableCell::paint (this=0x248e04,
paintInfo=@0xbef63310, tx=397, ty=10)
    at WebCore/rendering/RenderTableCell.cpp:663
#43 0x4141ef40 in WebCore::RenderTableSection::paint (this=0x14a1b4,
paintInfo=@0xbef63310, tx=10, ty=10)
    at WebCore/rendering/RenderTableSection.cpp:1029
#44 0x4140a3f4 in WebCore::RenderTable::paint (this=0x12249c,
paintInfo=@0xbef63370, tx=10, ty=10)
    at WebCore/rendering/RenderTable.cpp:474
#45 0x41337edc in WebCore::RenderBlock::paintChildren (this=0x237e9c,
paintInfo=@0xbef63474, tx=10, ty=10)
    at WebCore/rendering/RenderBlock.cpp:1715
#46 0x41337bdc in WebCore::RenderBlock::paintContents (this=0x237e9c,
paintInfo=@0xbef63474, tx=10, ty=10)
    at WebCore/rendering/RenderBlock.cpp:1691
#47 0x41338524 in WebCore::RenderBlock::paintObject (this=0x237e9c,
paintInfo=@0xbef63474, tx=10, ty=10)
    at WebCore/rendering/RenderBlock.cpp:1775
#48 0x41337338 in WebCore::RenderBlock::paint (this=0x237e9c,
paintInfo=@0xbef63474, tx=10, ty=10)
    at WebCore/rendering/RenderBlock.cpp:1603
#49 0x41337edc in WebCore::RenderBlock::paintChildren (this=0x27161c,
paintInfo=@0xbef635a8, tx=0, ty=0)
    at WebCore/rendering/RenderBlock.cpp:1715
#50 0x41337bdc in WebCore::RenderBlock::paintContents (this=0x27161c,
paintInfo=@0xbef635a8, tx=0, ty=0)
    at WebCore/rendering/RenderBlock.cpp:1691
#51 0x41338524 in WebCore::RenderBlock::paintObject (this=0x27161c,
paintInfo=@0xbef635a8, tx=0, ty=0)
    at WebCore/rendering/RenderBlock.cpp:1775
#52 0x41337338 in WebCore::RenderBlock::paint (this=0x27161c,
paintInfo=@0xbef635a8, tx=0, ty=0)
    at WebCore/rendering/RenderBlock.cpp:1603
#53 0x413bba80 in WebCore::RenderLayer::paintLayer (this=0x1668fc,
rootLayer=0x15fd5c, p=0xbef639cc,
    paintDirtyRect=@0xbef63988, haveTransparency=false,
paintRestriction=WebCore::PaintRestrictionNone, paintingRoot=0x0,
    appliedTransform=false, temporaryClipRects=false) at
WebCore/rendering/RenderLayer.cpp:1920
#54 0x413bbcd4 in WebCore::RenderLayer::paintLayer (this=0x15fd5c,
rootLayer=0x15fd5c, p=0xbef639cc,
    paintDirtyRect=@0xbef63988, haveTransparency=false,
paintRestriction=WebCore::PaintRestrictionNone, paintingRoot=0x0,
    appliedTransform=false, temporaryClipRects=false) at
WebCore/rendering/RenderLayer.cpp:1945
#55 0x413badcc in WebCore::RenderLayer::paint (this=0x15fd5c,
p=0xbef639cc, damageRect=@0xbef63988,
    paintRestriction=WebCore::PaintRestrictionNone, paintingRoot=0x0)
at WebCore/rendering/RenderLayer.cpp:1751
#56 0x411d8bc8 in WebCore::FrameView::paintContents (this=0x182930,
p=0xbef639cc, rect=@0xbef63988)
    at WebCore/page/FrameView.cpp:1235
#57 0x41240630 in WebCore::ScrollView::paint (this=0x182930,
context=0xbef639cc, rect=@0xbef63a0c)
    at WebCore/platform/ScrollView.cpp:693
#58 0x40c4ac24 in EWebFrame::render (this=0x33288, cr=0x46daf8,
rect=@0xbef63a0c) at WebKit/efl/Api/ewebframe.cpp:168
#59 0x40c508ac in EWebPage::paint (this=0x30948, cr=0x46daf8, rect=
        {m_location = {m_x = 469, m_y = 98}, m_size = {m_width = 152,
m_height = 28}}) at WebKit/efl/Api/ewebpage.cpp:232
#60 0x40c45600 in RepaintQueue::process (this=0x30b60,
surface=0x30948, cr=0x46daf8)
    at WebKit/efl/EvasSupport/eobject.cpp:114
#61 0x40c46078 in _eobject_recalculate (o=0x30970) at
WebKit/efl/EvasSupport/eobject.cpp:307
#62 0x425257a0 in evas_call_smarts_calculate () from
/l/p/tecsys/inst-root-285.webkit/usr/local/lib/libevas.so.0
#63 0x4253e3f0 in evas_render_updates_internal () from
/l/p/tecsys/inst-root-285.webkit/usr/local/lib/libevas.so.0
#64 0x40027c1c in _ecore_evas_directfb_idle_enter () from
/l/p/tecsys/inst-root-285.webkit/usr/local/lib/libecore_evas.so.0
#65 0x425ab45c in _ecore_idle_enterer_call () from
/l/p/tecsys/inst-root-285.webkit/usr/local/lib/libecore.so.0
#66 0x425ae920 in _ecore_main_loop_iterate_internal () from
/l/p/tecsys/inst-root-285.webkit/usr/local/lib/libecore.so.0
#67 0x425ae9a4 in ecore_main_loop_begin () from
/l/p/tecsys/inst-root-285.webkit/usr/local/lib/libecore.so.0
#68 0x0000a04c in main ()


-- 
Gustavo Lima Chaves
Computer Engineer @
ProFUSION Embedded Systems

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