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Re: [dillo 2.2] CSS bug?
by johannes.hofmann＠gmx.de June 20, 2010

June 20, 2010

Hi, sorry for the huge delay. I only have limited Internet access atm. The problem you are seeing is that dillo 2.2 does not render headlines and paragraphs (h1,h2,...,p) as separate boxes. Therefore the box model is not applied properly. My display prototype ( http://flpsed.org/hgweb/dillo_display ) should handle these cases better. I plan to integrate this into dillo mainline. Cheers, Johannes

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Unexplained Dillo Segfault
by rogerx＠sdf.org June 16, 2010

June 16, 2010

Every time I visit a web page, I get an unexplained segfault (viewing with strace). This has been occurring for 1-3 months now. I've recently realized a GCC bug with Mozilla based browsers here: http://bugs.gentoo.org/show_bug.cgi?id=270120 I think on one segfault with Dillo, I did get a "bad var font" error, but later lost the url -- so I can only try to recall the exact error. I doubt this is font related as I have several fonts installed. (Following is a quick search of "font" within package manager search function.) media-fonts/font-bitstream-100dpi (1.0.0@06/09/2010): X.Org Bitstream bitmap fonts media-fonts/font-bitstream-type1 (1.0.0@06/09/2010): X.Org Bitstream Type 1 fonts media-fonts/terminus-font (4.30@06/09/2010): A clean fixed font for the console and X11 media-fonts/urw-fonts (2.4.9@06/09/2010): free good quality fonts gpl'd by URW++ media-libs/fontconfig (2.8.0(1.0)@06/09/2010): A library for configuring and customizing font access virtual/ttf-fonts (1@06/08/2010): Virtual for Serif/Sans/Monospace font packages x11-apps/mkfontdir (1.0.5@06/09/2010): create an index of X font files in a directory x11-apps/mkfontscale (1.0.7@06/09/2010): create an index of scalable font files for X x11-libs/libXfont (1.4.1@06/09/2010): X.Org Xfont library x11-libs/libXfontcache (1.0.5@06/09/2010): X.Org Xfontcache library x11-libs/libfontenc (1.0.5@06/08/2010): X.Org fontenc library x11-proto/fontcacheproto (0.1.3@06/08/2010): X.Org Fontcache protocol headers x11-proto/fontsproto (2.1.0@06/08/2010): X.Org Fonts protocol headers x11-proto/xf86bigfontproto (1.2.0@06/08/2010): X.Org XF86BigFont protocol headers -- Roger http://rogerx.freeshell.org/

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scroll bar in textarea
by furaisanjin＠gmail.com June 13, 2010

June 13, 2010

Hi all. Are you able to control vertical and horizontal scroll bars in the below example? <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> </head> <body> <textarea cols=10 rows=10> Test message 1 - message 1. Test message 2 - message 2. Test message 3 - message 3. Test message 4 - message 4. Test message 5 - message 5. Test message 6 - message 6. Test message 7 - message 7. </textarea> </body> </html> I can't control them at all on my FreeBSD 8.0R. Regards, furaisanjin

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Re: [dillo 2.2] CSS bug?
by jcid＠dillo.org May 22, 2010

May 22, 2010

On Tue, May 11, 2010 at 01:36:51PM +0200, Michael Baeuerle wrote: > > Hi, > I have added a piece of demonstration code in the attached tarball. > Viewing the index.html file with dillo 2.2 shows the problem: If one of > the boxes contain code with "h2" or "p" tags, the margins associated > with the content seems to affect the layout outside the box (The margins > between the "top" and "content" boxes are defined as zero, so there > should be no space between them). IIRC dillo 2.1.1 have behaved > different. > > I have added two screenshots how dillo 2.2 and Webkit 1.1.8 (Midori) > render the test code on my machine. If I understand the CSS box model > [1] correctly, the content should never affect the area outside the > border and what dillo does is wrong. > > > Regards, > Michael Baeuerle > > [1] http://www.w3schools.com/css/css_boxmodel.asp Example: http://www.dillo.org/test/css-top-margin-bug.html Tarball: http://www.dillo.org/test/css-top-margin-bug.tar -- Cheers Jorge.-

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Re: dillo question
by matthew.t.craig＠gmail.com May 15, 2010

May 15, 2010

Thanks for the continued diagnostic suggestions. I have joined the dillo-dev mailing list to make it easier for everyone else. I discovered interesting data-point, by chance. Normally, I run dillo with the command parameter "-g 999x666" to fit my screen more appropriately. The output, with 'ulimit -c unlimited' is below. (... continued) mtc@freedomincluded:/$ dillo -g 999x666 http://uaddit.com/discussions/showthread.php?t=5931 paths: Cannot open file '/home/mtc/.dillo/keysrc' paths: Using /usr/local/etc/dillo/keysrc dillo_dns_init: Here we go! (threaded) Disabling cookies. Nav_open_url: new url='http://uaddit.com/discussions/showthread.php?t=5931' Dns_server [0]: uaddit.com is 72.44.80.46 Connecting to 72.44.80.46 CssParser::parseImport(): @import clientscript/vbulletin_css/style-01a90dc0-00011.css terminate called after throwing an instance of 'std::bad_alloc' what(): std::bad_alloc Aborted (core dumped) (... continued) Now, watch the output as I run in the same environment without the "-g" parameter. No crash! mtc@freedomincluded:/$ dillo http://uaddit.com/discussions/showthread.php?t=5931 paths: Cannot open file '/home/mtc/.dillo/keysrc' paths: Using /usr/local/etc/dillo/keysrc dillo_dns_init: Here we go! (threaded) Disabling cookies. Nav_open_url: new url='http://uaddit.com/discussions/showthread.php?t=5931' Dns_server [0]: uaddit.com is 72.44.80.46 Connecting to 72.44.80.46 CssParser::parseImport(): @import clientscript/vbulletin_css/style-01a90dc0-00011.css a_UIcmd_close_bw Dillo: normal exit! I have also run the core dump (from above) through gdb as you specified in your email. The output follows: mtc@freedomincluded:~$ gdb /usr/local/bin/dillo /tmp/core GNU gdb 6.8-debian Copyright (C) 2008 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "mipsel-linux-gnu"... (no debugging symbols found) Reading symbols from /usr/lib/libjpeg.so.62...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libjpeg.so.62 Reading symbols from /usr/lib/libpng12.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libpng12.so.0 Reading symbols from /usr/lib/libz.so.1... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libz.so.1 Reading symbols from /usr/lib/libX11.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libX11.so.6 Reading symbols from /usr/lib/libXi.so.6... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libXi.so.6 Reading symbols from /usr/lib/libXinerama.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXinerama.so.1 Reading symbols from /usr/lib/libXcursor.so.1... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libXcursor.so.1 Reading symbols from /usr/lib/libXft.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXft.so.2 Reading symbols from /lib/libpthread.so.0... (no debugging symbols found)...done. Loaded symbols for /lib/libpthread.so.0 Reading symbols from /usr/lib/libXext.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXext.so.6 Reading symbols from /usr/lib/libstdc++.so.6... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libstdc++.so.6 Reading symbols from /lib/libm.so.6...(no debugging symbols found)...done. Loaded symbols for /lib/libm.so.6 Reading symbols from /lib/libgcc_s.so.1... (no debugging symbols found)...done. Loaded symbols for /lib/libgcc_s.so.1 Reading symbols from /lib/libc.so.6...(no debugging symbols found)...done. Loaded symbols for /lib/libc.so.6 Reading symbols from /lib/ld.so.1... (no debugging symbols found)...done. Loaded symbols for /lib/ld.so.1 Reading symbols from /usr/lib/libXrender.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXrender.so.1 Reading symbols from /usr/lib/libfontconfig.so.1... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libfontconfig.so.1 Reading symbols from /usr/lib/libxcb-xlib.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libxcb-xlib.so.0 Reading symbols from /usr/lib/libxcb.so.1... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libxcb.so.1 Reading symbols from /lib/libdl.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/libdl.so.2 Reading symbols from /usr/lib/libXfixes.so.3... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libXfixes.so.3 Reading symbols from /usr/lib/libfreetype.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libfreetype.so.6 Reading symbols from /usr/lib/libXau.so.6... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libXau.so.6 Reading symbols from /usr/lib/libexpat.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libexpat.so.1 Reading symbols from /usr/lib/libXdmcp.so.6... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libXdmcp.so.6 Reading symbols from /lib/libnss_files.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/libnss_files.so.2 Reading symbols from /lib/libnss_mdns4_minimal.so.2... (no debugging symbols found)...done. Loaded symbols for /lib/libnss_mdns4_minimal.so.2 Reading symbols from /lib/libnss_dns.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/libnss_dns.so.2 Reading symbols from /lib/libresolv.so.2... (no debugging symbols found)...done. Loaded symbols for /lib/libresolv.so.2 Reading symbols from /usr/lib/gconv/ISO8859-1.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/gconv/ISO8859-1.so ---Type <return> to continue, or q <return> to quit--- Core was generated by `dillo -g 999x666 http://uaddit.com/discussions/showthread.php?t=5931'. Program terminated with signal 6, Aborted. [New process 5489] #0 0x2af949f8 in raise () from /lib/libc.so.6 (gdb) bt #0 0x2af949f8 in raise () from /lib/libc.so.6 #1 0x2af9665c in abort () from /lib/libc.so.6 #2 0x0051facc in __gnu_cxx::__verbose_terminate_handler () #3 0x0051d7c4 in __cxxabiv1::__terminate () #4 0x0051d828 in std::terminate () #5 0x0051d9f8 in __cxa_throw () #6 0x0051de84 in operator new () #7 0x0051def8 in operator new[] () #8 0x004d14a0 in fltk::Image::make_current () #9 0x00499eac in ?? () warning: GDB can't find the start of the function at 0x499eab. GDB is unable to find the start of the function at 0x499eab and thus can't determine the size of that function's stack frame. This means that GDB may be unable to access that stack frame, or the frames below it. This problem is most likely caused by an invalid program counter or stack pointer. However, if you think GDB should simply search farther back from 0x499eab for code which looks like the beginning of a function, you can increase the range of the search using the `set heuristic-fence-post' command. Backtrace stopped: previous frame inner to this frame (corrupt stack?)

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Re: dillo question
by Johannes.Hofmann＠gmx.de May 14, 2010

May 14, 2010

On Fri, May 14, 2010 at 10:22:53AM -0400, Matthew Craig wrote: > process limits set in your environmen (ulimit -a) > > mtc@freedomincluded:~$ ulimit -a > core file size (blocks, -c) 0 > data seg size (kbytes, -d) unlimited > scheduling priority (-e) 0 > file size (blocks, -f) unlimited > pending signals (-i) 4019 > max locked memory (kbytes, -l) 64 > max memory size (kbytes, -m) unlimited > open files (-n) 1024 > pipe size (512 bytes, -p) 8 > POSIX message queues (bytes, -q) 819200 > real-time priority (-r) 0 > stack size (kbytes, -s) 8192 > cpu time (seconds, -t) unlimited > max user processes (-u) 4019 > virtual memory (kbytes, -v) unlimited > file locks (-x) unlimited Ah, core files are disabled on your system. You need to call ulimit -c unlimited in the shell from which you start dillo to actually get a core file. After dillo aborts, the core file should show up in /tmp.

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Re: dillo question
by Johannes.Hofmann＠gmx.de May 14, 2010

May 14, 2010

On Fri, May 14, 2010 at 10:22:53AM -0400, Matthew Craig wrote: > process limits set in your environmen (ulimit -a) > > mtc@freedomincluded:~$ ulimit -a > core file size (blocks, -c) 0 > data seg size (kbytes, -d) unlimited > scheduling priority (-e) 0 > file size (blocks, -f) unlimited > pending signals (-i) 4019 > max locked memory (kbytes, -l) 64 > max memory size (kbytes, -m) unlimited > open files (-n) 1024 > pipe size (512 bytes, -p) 8 > POSIX message queues (bytes, -q) 819200 > real-time priority (-r) 0 > stack size (kbytes, -s) 8192 > cpu time (seconds, -t) unlimited > max user processes (-u) 4019 > virtual memory (kbytes, -v) unlimited > file locks (-x) unlimited Ok, so that's not it... Do you get a core file when it aborts? If so please run gdb on it: gdb <path to dillo binary> <path to core file> and type "bt" at the gdb prompt. The output might give us a hint on what's failing.

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Re: dillo question
by jcid＠dillo.org May 14, 2010

May 14, 2010

On Fri, May 14, 2010 at 09:40:09AM -0400, Matthew Craig wrote: > Here is the output with all CSS options turned off: > > Nav_open_url: new url='http://uaddit.com/discussions/showthread.php?t=5931' > Dns_server [0]: uaddit.com is 72.44.80.46 > Connecting to 72.44.80.46 > terminate called after throwing an instance of 'std::bad_alloc' > what(): std::bad_alloc > Aborted OK, let's test without CSS as it is not the problem. From previous output it looks like the problem is related to an event and not the suspected function. I'd say: gdb ./dillo r http://uaddit.com/discussions/showthread.php?t=5931 at some point it'll crash, then: bt (and send us the backtrace). There's a lot more you can do with gdb, this is just to start. PS: Forget my previous email, I pressed "send" instead of "postpone" and that's why it got cut in the middle of a sentence :-) -- Cheers Jorge.-

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Re: dillo question
by jcid＠dillo.org May 14, 2010

May 14, 2010

On Wed, May 12, 2010 at 03:44:50PM -0400, Matthew Craig wrote: > Thanks for your response. Sorry that I am reluctant to join any mailing lists. > The Lemote laptop has alot of memory: 1GB and 2.7GB swap. I am > running GNOME without memory problems, and usage rarely rises over 50% > ... I am reluctant to presume Dillo is using all the memory up, but I > have been watching it today. > > Browsing to that website when Dillo is started fresh does indeed cause > an immediate crash. OK, that eliminates the memory shortage thesis... > mtc@freedomincluded:~$ dillo -g 999x666 > http://uaddit.com/discussions/showthread.php?t=5931 > paths: Cannot open file '/home/mtc/.dillo/keysrc' > paths: Using /usr/local/etc/dillo/keysrc > dillo_dns_init: Here we go! (threaded) > Disabling cookies. > Nav_open_url: new url='http://uaddit.com/discussions/showthread.php?t=5931' > Dns_server [0]: uaddit.com is 72.44.80.46 > Connecting to 72.44.80.46 > CssParser::parseImport(): @import > clientscript/vbulletin_css/style-01a90dc0-00011.css > terminate called after throwing an instance of 'std::bad_alloc' > what(): std::bad_alloc > Aborted > Please start dillo, disable css (tools button) and load the page. If it doesn't crash after the page loads, enable css again and see what happens (this is to check in what part of dillo the allocation problem is and to discard a race condition between css and html rendering). This bug is very interesting (probably there's something uninitialized in dillo or outside of it). I'll check with valgrind. Can someone else reproduce this bug? -- Cheers Jorge.-

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Re: dillo question
by jcid＠dillo.org May 14, 2010

May 14, 2010

On Wed, May 12, 2010 at 03:44:50PM -0400, Matthew Craig wrote: > Thanks for your response. Sorry that I am reluctant to join any mailing lists. > The Lemote laptop has alot of memory: 1GB and 2.7GB swap. I am > running GNOME without memory problems, and usage rarely rises over 50% > ... I am reluctant to presume Dillo is using all the memory up, but I > have been watching it today. > > Browsing to that website when Dillo is started fresh does indeed cause > an immediate crash. > > mtc@freedomincluded:~$ dillo -g 999x666 > http://uaddit.com/discussions/showthread.php?t=5931 > paths: Cannot open file '/home/mtc/.dillo/keysrc' > paths: Using /usr/local/etc/dillo/keysrc > dillo_dns_init: Here we go! (threaded) > Disabling cookies. > Nav_open_url: new url='http://uaddit.com/discussions/showthread.php?t=5931' > Dns_server [0]: uaddit.com is 72.44.80.46 > Connecting to 72.44.80.46 > CssParser::parseImport(): @import > clientscript/vbulletin_css/style-01a90dc0-00011.css > terminate called after throwing an instance of 'std::bad_alloc' > what(): std::bad_alloc > Aborted I can't reproduce it with valgrind... :-P ...but, from the above output, the last debug message comes from cssparser.cc:1428 and it calls a_Html_load_stylesheet() which should print "NumPendingStyleSheets=1" (html.cc:2985). So, the problem is in this tiny spot. Please run gdb, set a break point in a_Html_load_stylesheet() and follow it carefully step by step until it crashes to know in what line the problem is triggered. -- Cheers Jorge.-

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