[webkit-dev] Curl resourcehandle leaks in Linux/Gtk port

[zaheer ahmad]

hi,
attached updated leak data with up to three levels tracing. this is on
r33943. appreciate any inputs on these leaks.

thanks,
Zaheer

On Thu, Sep 11, 2008 at 9:58 PM, zaheer ahmad <zaheer.mot at gmail.com> wrote:

> Thanks Marco for raising the bug.
> here are some other leaks i observe on the linux/gtk/arm platform (>50k per
> caller), this is with a run of opening around 30 random pages. The heap size
> goes to 45M, so definitely there are big leaks in the gtk port.
>
> i will try to find the caller to the next level and split up the generic
> functions.
>
> meanwhile, let me know if there are fixes available for any of these
>
> thanks,
> Zaheer
>
> <caller>: WTF::Vector<char, 0u>::reserveCapacity(unsigned int)+40 <size>:
> 5358380 <Avg>: 4564
> <caller>: alloc_small+208 <size>: 4160560 <Avg>: 8110
> <caller>: WTF::Vector<unsigned int, 0u>::reserveCapacity(unsigned int)+56
> <size>: 3780004 <Avg>: 63000
> <caller>: png_malloc+72 <size>: 1827334 <Avg>: 3071
> <caller>: gmem.c:152(IA__g_malloc0+72) <size>: 1706851 <Avg>: 393
> <caller>: KJS::HashTable::createTable() const+32 <size>: 1471404 <Avg>:
> 15169
> <caller>: WTF::fastZeroedMalloc(unsigned int)+12 <size>: 1418356 <Avg>: 551
> <caller>: WebCore::TextCodecLatin1::decode(char const*, unsigned int, bool,
> bool, bool&)+32 <size>: 1330110 <Avg>: 11667
> <caller>: __gconv_open+1344 <size>: 1305600 <Avg>: 32640
> <caller>: WebCore::String::append(WebCore::String const&)+68 <size>:
> 1293644 <Avg>: 869
> <caller>: sqlite3MallocRaw+48 <size>: 1038129 <Avg>: 259
> <caller>: WTF::Vector<unsigned short, 0u>::reserveCapacity(unsigned int)+56
> <size>: 995870 <Avg>: 9575
> <caller>: WebCore::GlyphPageTreeNode::initializePage(WebCore::FontData
> const*, unsigned int)+448 <size>: 995104 <Avg>: 2056
> <caller>: WebCore::StringImpl::create(unsigned short const*, unsigned
> int)+116 <size>: 816884 <Avg>: 32
> <caller>: WebCore::StringImpl::create(unsigned short const*, unsigned
> int)+80 <size>: 510200 <Avg>: 20
> <caller>: cairo-scaled-font.c:1796(_cairo_scaled_glyph_lookup+248) <size>:
> 426720 <Avg>: 96
> <caller>: GIFImageReader::do_lzw(unsigned char const*)+760 <size>: 368730
> <Avg>: 8194
> <caller>: FcPatternObjectAddWithBinding+60 <size>: 365600 <Avg>: 32
> <caller>: WTF::Vector<WebCore::RGBA32Buffer, 0u>::reserveCapacity(unsigned
> int)+60 <size>: 363456 <Avg>: 768
> <caller>: WebCore::FontCache::getFontDataForCharacters(WebCore::Font
> const&, unsigned short const*, int)+36 <size>: 363424 <Avg>: 1108
> <caller>: sqlite3Realloc+60 <size>: 292492 <Avg>: 552
> <caller>: WebCore::JPEGImageDecoder::setData(WebCore::SharedBuffer*,
> bool)+112 <size>: 248920 <Avg>: 1016
> <caller>: WebCore::GlyphPageTreeNode::initializePage(WebCore::FontData
> const*, unsigned int)+1172 <size>: 211768 <Avg>: 2056
> <caller>: strdup+24 <size>: 207135 <Avg>: 36
> <caller>: WebCore::Cache::requestResource(WebCore::DocLoader*,
> WebCore::CachedResource::Type, WebCore::KURL const&, WebCore::String const&,
> bool)+548 <size>: 187680 <Avg>: 240
> <caller>: WebCore::StringImpl::create(char const*, unsigned int)+108
> <size>: 185274 <Avg>: 147
> <caller>: GIFImageReader::read(unsigned char const*, unsigned int,
> WebCore::GIFImageDecoder::GIFQuery, unsigned int)+3284 <size>: 184365 <Avg>:
> 4097
> <caller>: GIFImageReader::read(unsigned char const*, unsigned int,
> WebCore::GIFImageDecoder::GIFQuery, unsigned int)+3264 <size>: 184365 <Avg>:
> 4097
> <caller>: WebCore::GIFImageDecoder::setData(WebCore::SharedBuffer*,
> bool)+112 <size>: 136000 <Avg>: 320
> <caller>: alloc_large+96 <size>: 135960 <Avg>: 586
> <caller>: KJS::UString::Rep::create(unsigned short*, int)+24 <size>: 127200
> <Avg>: 48
> <caller>: FcPatternObjectInsertElt+176 <size>: 126720 <Avg>: 256
> <caller>: png_create_struct_2+108 <size>: 116560 <Avg>: 620
> <caller>: GIFImageReader::read(unsigned char const*, unsigned int,
> WebCore::GIFImageDecoder::GIFQuery, unsigned int)+1912 <size>: 101304 <Avg>:
> 255
> <caller>: WebCore::FontCache::getCachedFontData(WebCore::FontPlatformData
> const*)+120 <size>: 91964 <Avg>: 1108
> <caller>: WebCore::Text::createWithLengthLimit(WebCore::Document*,
> WebCore::String const&, unsigned int&, unsigned int)+312 <size>: 86476
> <Avg>: 52
> <caller>: gmem.c:132(IA__g_malloc+64) <size>: 79287 <Avg>: 22
> <caller>: WebCore::StringImpl::StringImpl(unsigned short const*, unsigned
> int, unsigned int)+48 <size>: 72278 <Avg>: 68
> <caller>:
> /home/ir2daily/source-root/freetype2/src/base/ftutil.c:77(ft_mem_qalloc+24)
> <size>: 70354 <Avg>: 413
> <caller>:
> WebCore::CachedImage::data(WTF::PassRefPtr<WebCore::SharedBuffer>, bool)+424
> <size>: 62240 <Avg>: 80
> <caller>: gmem.c:171(IA__g_realloc+76) <size>: 57080 <Avg>: 50
> <caller>: cairo-hash.c:334(_cairo_hash_table_resize+128) <size>: 56656
> <Avg>: 602
> <caller>: WebCore::GlyphPageTreeNode::getChild(WebCore::FontData const*,
> unsigned int)+80 <size>: 50644 <Avg>: 44
>
>
> On Thu, Sep 11, 2008 at 4:39 PM, Marco Barisione <
> marco.barisione at collabora.co.uk> wrote:
>
>> Il giorno mer, 10/09/2008 alle 13.26 +0530, zaheer ahmad ha scritto:
>> > In the linux Gtk port, with Webkit revision 33493, i see that the
>> > resource handles (curl backend) never get released after completing
>> > the data transfer for that request. This results in big leaks in
>> > resourcehandles as well as the curl internal data structures. (~800k
>> > on opening nytimes.com and closing the connection)
>>
>> See http://bugs.webkit.org/show_bug.cgi?id=20777 for a possible fix
>>
>>
>> --
>> Marco Barisione
>>
>> _______________________________________________
>> webkit-dev mailing list
>> webkit-dev at lists.webkit.org
>> http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
>>
>
>
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