objective c - iOS SIGSEGV Crash on SIGNAL (CFSetRemoveValue) -

objective c - iOS SIGSEGV Crash on SIGNAL (CFSetRemoveValue) -

here stacktrace bugsense, i'm using xcode 5 arc. got crash when using uiwebview. know problem of it? give thanks you!

0 corefoundation 0x2f8c6302 cfsetremovevalue + 5 1 cfnetwork 0x2f5c16f1 + 24 2 corefoundation 0x2f947037 + 30 3 corefoundation 0x2f8bf8df cfrelease + 462 4 webcore 0x37d5d3f3 + 142 5 webcore 0x37d5d2e3 + 34 6 webcore 0x37d5d2ad + 40 7 webcore 0x37c8500b + 210 8 webcore 0x37c8514f + 10 9 webcore 0x37c18757 + 110 10 webcore 0x37c18383 + 626 11 webcore 0x37cceaab + 482 12 webcore 0x37baefb3 + 98 13 webcore 0x37c788d9 + 364 14 webcore 0x37c78757 + 134 15 webcore 0x37c77eb3 + 322 16 webcore 0x37c77b43 + 1210 17 webcore 0x37c7745d + 460 18 webcore 0x37bf0b43 + 266 19 webcore 0x37bf09db + 250 20 webcore 0x37bee733 + 1562 21 webcore 0x38306db9 + 464 22 webcore 0x37bee0d3 + 882 23 webcore 0x37bf08bd + 100 24 webcore 0x37bee77d + 1636 25 webcore 0x37bedfc1 + 608 26 webcore 0x37bf08bd + 100 27 webcore 0x37bee77d + 1636 28 webcore 0x37bedfc1 + 608 29 webcore 0x37bedcdf + 102 30 webcore 0x37bed73f + 514 31 webkit 0x3859d423 + 354 32 webkit 0x3859d251 + 136 33 webkit 0x3859d17d + 36 34 webcore 0x37bed09f + 274 35 webcore 0x37bed1d3 + 582 36 webcore 0x37bed1d3 + 582 37 webcore 0x37bed1d3 + 582 38 webcore 0x37bed1d3 + 582 39 webcore 0x37becf4b + 58 40 webcore 0x37becf0b + 54 41 webcore 0x37bece4f + 662 42 webcore 0x37bec835 + 504 43 quartzcore 0x31e40f91 + 2192 44 quartzcore 0x31f1bd6d + 52 45 quartzcore 0x31e406f3 + 82 46 quartzcore 0x31e4039b + 1106 47 quartzcore 0x31e2403d + 208 48 quartzcore 0x31e23cd5 + 24 49 quartzcore 0x31e236df + 230 50 quartzcore 0x31e234ef + 314 51 quartzcore 0x31e1d21d + 56 52 corefoundation 0x2f95a2a5 + 20 53 corefoundation 0x2f957c49 + 284 54 corefoundation 0x2f8c2f31 cfrunlooprunspecific + 556 55 corefoundation 0x2f8c2cf3 cfrunloopruninmode + 106 56 webcore 0x37bad11b + 418 57 libsystem_pthread.dylib 0x3a833919 + 140 58 libsystem_pthread.dylib 0x3a83388b _pthread_start + 102 59 libsystem_pthread.dylib 0x3a831aa4 thread_start + 8

this crash study signal -> cfsetremovevalue running on ios7 iphone4

i'm having same crash. i've managed symbolicate it'll contain more useful information. if helps, @ first thought device running out of memory , crashing, after profiling device whilst crashed, notice plenty available. can't case. website loaded in uiwebview intensive html5 game.

thread : crashed: webthread (com.apple.root.default-overcommit-priority) 0 corefoundation 0x00000001872491c4 cfsetremovevalue + 36 1 cfnetwork 0x0000000186ee2b3c __cfurlcache::removemmappeddatafromset(void*) + 60 2 cfnetwork 0x0000000186ee2b3c __cfurlcache::removemmappeddatafromset(void*) + 60 3 cfnetwork 0x0000000186ee49c8 mmapfiledeallocate(void*, void*) + 40 4 corefoundation 0x00000001872ee81c __cfdatadeallocate + 44 5 corefoundation 0x000000018724213c cfrelease + 316 6 webcore 0x0000000190d99ef4 webcore::sharedbuffer::clear() + 212 7 webcore 0x0000000190d99d68 webcore::sharedbuffer::~sharedbuffer() + 56 8 webcore 0x0000000190d99d14 webcore::resourcebuffer::~resourcebuffer() + 68 9 webcore 0x0000000190c79e90 webcore::cachedresource::~cachedresource() + 300 10 webcore 0x0000000190c79d54 webcore::cachedcssstylesheet::~cachedcssstylesheet() + 172 11 webcore 0x0000000190c79c98 webcore::cachedcssstylesheet::~cachedcssstylesheet() + 20 12 webcore 0x0000000190bec558 webcore::cachedresource::deleteifpossible() + 160 13 webcore 0x0000000190cdd660 webcore::memorycache::prunedeadresourcestosize(unsigned int) + 588 14 webcore 0x0000000190b661c4 webcore::memorycache::prune() + 132 15 webcore 0x0000000190c6b4f4 webcore::bitmapimage::draw(webcore::graphicscontext*, webcore::floatrect const&, webcore::floatrect const&, webcore::colorspace, webcore::compositeoperator, webcore::blendmode, webcore::respectimageorientationenum) + 504 16 webcore 0x0000000190cc9ac4 webcore::image::drawtiled(webcore::graphicscontext*, webcore::floatrect const&, webcore::floatpoint const&, webcore::floatsize const&, webcore::colorspace, webcore::compositeoperator, webcore::blendmode) + 568 17 webcore 0x0000000190cc986c webcore::graphicscontext::drawtiledimage(webcore::image*, webcore::colorspace, webcore::intrect const&, webcore::intpoint const&, webcore::intsize const&, webcore::compositeoperator, bool, webcore::blendmode) + 288 18 webcore 0x0000000190bbb0cc webcore::renderboxmodelobject::paintfilllayerextended(webcore::paintinfo const&, webcore::color const&, webcore::filllayer const*, webcore::layoutrect const&, webcore::backgroundbleedavoidance, webcore::inlineflowbox*, webcore::layoutsize const&, webcore::compositeoperator, webcore::renderobject*) + 4064 19 webcore 0x0000000190bb9ef4 webcore::renderbox::paintfilllayers(webcore::paintinfo const&, webcore::color const&, webcore::filllayer const*, webcore::layoutrect const&, webcore::backgroundbleedavoidance, webcore::compositeoperator, webcore::renderobject*) + 624 20 webcore 0x0000000190bb9bcc webcore::renderbox::paintbackground(webcore::paintinfo const&, webcore::layoutrect const&, webcore::backgroundbleedavoidance) + 476 21 webcore 0x0000000190bb8b94 webcore::renderbox::paintboxdecorations(webcore::paintinfo&, webcore::layoutpoint const&) + 464 22 webcore 0x0000000190bb61ac webcore::renderblock::paintobject(webcore::paintinfo&, webcore::layoutpoint const&) + 108 23 webcore 0x0000000190bb87b0 webcore::renderblock::paint(webcore::paintinfo&, webcore::layoutpoint const&) + 292 24 webcore 0x0000000190bb5e80 webcore::renderlayer::paintbackgroundforfragments(wtf::vector<webcore::layerfragment, 1ul, wtf::crashonoverflow> const&, webcore::graphicscontext*, webcore::graphicscontext*, webcore::layoutrect const&, bool, webcore::renderlayer::layerpaintinginfo const&, unsigned int, webcore::renderobject*) + 348 25 webcore 0x0000000190bb3d40 webcore::renderlayer::paintlayercontents(webcore::graphicscontext*, webcore::renderlayer::layerpaintinginfo const&, unsigned int) + 1404 26 webcore 0x0000000190d2124c webcore::renderlayerbacking::paintintolayer(webcore::graphicslayer const*, webcore::graphicscontext*, webcore::intrect const&, unsigned int, unsigned int) + 316 27 webcore 0x0000000190d20f7c webcore::renderlayerbacking::paintcontents(webcore::graphicslayer const*, webcore::graphicscontext&, unsigned int, webcore::intrect const&) + 356 28 webcore 0x0000000190d20e00 webcore::graphicslayer::paintgraphicslayercontents(webcore::graphicscontext&, webcore::intrect const&) + 156 29 webcore 0x000000019102de14 non-virtual thunk webcore::graphicslayerca::platformcalayerpaintcontents(webcore::graphicscontext&, webcore::intrect const&) + 32 30 webcore 0x0000000190d20a14 drawlayercontents(cgcontext*, calayer*, webcore::platformcalayer*) + 776 31 quartzcore 0x0000000189f176c0 cabackingstoreupdate_ + 2792 32 quartzcore 0x0000000189f16bc8 x_blame_allocations + 112 33 quartzcore 0x0000000189f16758 ca::layer::display_() + 1260 34 webcore 0x0000000190d20684 -[weblayer display] + 68 35 quartzcore 0x0000000189ef701c ca::layer::display_if_needed(ca::transaction*) + 244 36 quartzcore 0x0000000189ef6ce4 ca::layer::layout_and_display_if_needed(ca::transaction*) + 44 37 quartzcore 0x0000000189ef6560 ca::context::commit_transaction(ca::transaction*) + 280 38 quartzcore 0x0000000189ef6304 ca::transaction::commit() + 424 39 quartzcore 0x0000000189eefc38 ca::transaction::observer_callback(__cfrunloopobserver*, unsigned long, void*) + 80 40 corefoundation 0x0000000187307858 __cfrunloop_is_calling_out_to_an_observer_callback_function__ + 32 41 corefoundation 0x0000000187304ae0 __cfrunloopdoobservers + 372 42 corefoundation 0x0000000187245df8 cfrunlooprunspecific + 492 43 webcore 0x0000000190b633bc runwebthread(void*) + 472 44 libsystem_pthread.dylib 0x0000000193fbfe1c _pthread_body + 168 45 libsystem_pthread.dylib 0x0000000193fbfd74 _pthread_body

objective-c crash sigsegv bugsense