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Messages - konstantin

2
Browsers & Technology / Where to get advices for buying a laptop?
I used a PC till now, bought in 2002. It was an Intel D865PERL mainboard and it had 2 GB of RAM, 2.4 Ghz HyperThread CPU (512K cache), 500 GB SATA HDD. Finally the mainboard run down, so I decided to by a laptop instead of it. Problem is I never had a laptop, nor my acquitances have, so I can't get advices from them.

Which brands to avoid? I heard bad things from Acer laptops. I can choose from: Dell, Lenovo, HP, Acer, Fujitsu, and Asus models. Some of them comes with 2 years of warranty, other come with 3 years of warranty.

What amount of memory should it have? 2 GB was enough for me for my 32 bit Arch Linux systm, except when running Chromium. I have read somewhere that 64 bit OS and 64 bit apps use twice as RAM,so at least 4 GB of RAM or even 8 GB would be better. I just read somewhere that it is better to buy 16 GB of RAM.

I can choose 14" and 13.3" laptops instead of the usual 15.6", which are better to carry somewhere, but maybe the display is too small. I used a 15" CRT display till now, and a 17" formerly. I read somewhere it's better to buy a model with full HD display (1920x1080) instead of the 1366x768. Of course I can connect an external display to the laptop if display proves too small. Some of the laptop lacks of a HDMI port, shoud I avoid them?

I thought that 256 GB of SSD storage would be sufficient for my needs, and it is faster than a ordinary HDD. Do a 64 bit OS and 64 bit apps use twice as much storage space on a hard drive as well compared to a 32 bit OS?

I would prefer a low noise, less heating, low energy consumption laptop, which is reliable and long lasting. I used my former PC for 15 years till its mainboard run down finally. I can choose Celeron/Pentium Dual Core, Celeron/Pentium Quad Core, i3 and i5 series. Non-i series supports only 8 GB of RAM which can be an issue in the future, I think. I read somewhere that I should choose i3-6xxx or i3-7xxx and same with i5 and avoid i3-5xxx, i3-4xxx, etc. I would stuck on i3 due to the budget. However I think that the lowest performance laptop which can be bought today would exceed my old, run down config. I excluded/wouldn't prefer AMD quad core processors, because they consume more energy, 20 watt TDP instead of 15 watt, and there is no low-TDP mode which consumes only 10 or 7.5 watt in case of an i3-6xxx and i3-7xxx.

What about graphics hardware? As far as I know it is now embedded into the processor (various Intel HD series). But sometimes there is a dedicated GPU which can be an Nvidia or AMD Radeon. I have no clue which would be better to choose.

I plan buying in two weeks because right now I am using an even older computer which had run down supplied with an Athlon XP. Budget is 910 USD / 850 EUR.

3
Otter Browser Forum / Re: Compile Otter Browser for Athlon XP processor (without SSE2) in Arch Linux
Another crash after a few hours of browsing:
Code: [Select]
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory

** (otter-browser:5189): CRITICAL **: file gstaudioringbuffer.c: line 1993 (gst_audio_ring_buffer_set_channel_positions): should not be reached
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc
Aborted (core dumped)
4
Otter Browser Forum / Re: Compile Otter Browser for Athlon XP processor (without SSE2) in Arch Linux
@konstantin, OK, there is some more testing to be done apparently:
Quote
<annulen|home> try JSC_useDFGJIT=0 instead of JSC_useJIT
<annulen|home> make sure that JSC_useJIT is not set or set to non-null
Are they namesakes, or this is just trolling?  ??? Because annulen is also Konstantin.

No, I live in Hungary, and the english / latin equivalent of my name is accidentally Konstantin, that's all.
6
Otter Browser Forum / Re: Compile Otter Browser for Athlon XP processor (without SSE2) in Arch Linux
I tried now "JSC_useDFGJIT=0", but after a few minutes of facebook browsing it crashed soon.
Yesterday testing  "JSC_useJIT=0" seemd to be stable, no crash for about two hour of browsing.

Anyway I am testing "otter-browser-0.9.12". Handy little browser, performance is quite acceptable on this 16 years old PC especially compared to Firefox. I used Opera 43 recently, till my other PC which was SSE2 capable run down.
8
Otter Browser Forum / Re: Compile Otter Browser for Athlon XP processor (without SSE2) in Arch Linux
Yes, but it unfortunately crashes again when I try to login into facebook.

Second trace.log (it crashed before I clicked on login button)

Code: [Select]
Starting program: /usr/bin/otter-browser 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0xaf3d0b40 (LWP 10263)]
[New Thread 0xae58cb40 (LWP 10264)]
[New Thread 0xacd63b40 (LWP 10265)]
[New Thread 0xac562b40 (LWP 10266)]
[New Thread 0xab997b40 (LWP 10267)]
[New Thread 0xaa1ffb40 (LWP 10268)]
[New Thread 0xa99feb40 (LWP 10269)]
[New Thread 0xa8dffb40 (LWP 10274)]
[New Thread 0xa85feb40 (LWP 10275)]
[New Thread 0xa7b47b40 (LWP 10276)]
[New Thread 0xa5fffb40 (LWP 10277)]
[New Thread 0xa4fffb40 (LWP 10278)]

Thread 1 "otter-browser" received signal SIGILL, Illegal instruction.
0xaa8a75a1 in ?? ()

Thread 13 (Thread 0xa4fffb40 (LWP 10278)):
#0  0xb7fdacd9 in __kernel_vsyscall ()
#1  0xb3387c8b in pthread_cond_wait@@GLIBC_2.3.2 ()
    at /usr/lib/libpthread.so.0
#2  0xb365ff4e in __gthread_cond_wait (__mutex=<optimized out>, __cond=0xa55632dc)
    at /build/gcc/src/gcc-build/i686-pc-linux-gnu/libstdc++-v3/include/i686-pc-linux-gnu/bits/gthr-default.h:864
        __e = <optimized out>
#3  0xb365ff4e in std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=0xa55632dc, __lock=...)
    at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
        __e = <optimized out>
#4  0xb4c31dd8 in WTF::ParkingLot::parkConditionally(void const*, std::function<bool ()>, std::function<void ()>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long long, std::ratio<1ll, 1000000000ll> > >) () at /usr/lib/libQt5WebKit.so.5
#5  0xb458811d in  () at /usr/lib/libQt5WebKit.so.5
#6  0xb4c34d70 in  () at /usr/lib/libQt5WebKit.so.5
#7  0xb4c610f9 in  () at /usr/lib/libQt5WebKit.so.5
#8  0xb3382301 in start_thread () at /usr/lib/libpthread.so.0
#9  0xb34820ae in clone () at /usr/lib/libc.so.6
Quit

10
Otter Browser Forum / Re: Compile Otter Browser for Athlon XP processor (without SSE2) in Arch Linux
The trace.log after all:

Code: [Select]
Starting program: /usr/bin/otter-browser 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0xa5908b40 (LWP 5420)]
[New Thread 0xa4b43b40 (LWP 5421)]
[New Thread 0xa2d4fb40 (LWP 5422)]
[New Thread 0xa254eb40 (LWP 5423)]

Thread 1 "otter-browser" received signal SIGILL, Illegal instruction.
0xb2d729b9 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
Already logging to trace.log.

Thread 5 (Thread 0xa254eb40 (LWP 5423)):
#0  0xb7fdacd9 in __kernel_vsyscall ()
#1  0xacffe15f in poll () at /usr/lib/libc.so.6
#2  0xac855f70 in g_poll () at /usr/lib/libglib-2.0.so.0
#3  0xac84650c in  () at /usr/lib/libglib-2.0.so.0
#4  0xac846929 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#5  0xa99dcdc5 in  () at /usr/lib/libgio-2.0.so.0
#6  0xac86e59a in  () at /usr/lib/libglib-2.0.so.0
#7  0xaca65301 in start_thread () at /usr/lib/libpthread.so.0
#8  0xad0080ae in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0xa2d4fb40 (LWP 5422)):
#0  0xb7fdacd9 in __kernel_vsyscall ()
#1  0xacffe15f in poll () at /usr/lib/libc.so.6
#2  0xac855f70 in g_poll () at /usr/lib/libglib-2.0.so.0
#3  0xac84650c in  () at /usr/lib/libglib-2.0.so.0
#4  0xac846644 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0xac8466a0 in  () at /usr/lib/libglib-2.0.so.0
#6  0xac86e59a in  () at /usr/lib/libglib-2.0.so.0
#7  0xaca65301 in start_thread () at /usr/lib/libpthread.so.0
#8  0xad0080ae in clone () at /usr/lib/libc.so.6

Quit
11
Otter Browser Forum / Re: Compile Otter Browser for Athlon XP processor (without SSE2) in Arch Linux
I tried both the mentioned environment variables either in common or in separate bash windows. None of them worked for me.
Now I made a copy of my /etc/makepkg.conf and placed two directives in it:
CFLAGS=""
CXXFLAGS=""

Code: [Select]
#
# /etc/makepkg.conf
#

#########################################################################
# SOURCE ACQUISITION
#########################################################################
#
#-- The download utilities that makepkg should use to acquire sources
#  Format: 'protocol::agent'
DLAGENTS=('ftp::/usr/bin/curl -fC - --ftp-pasv --retry 3 --retry-delay 3 -o %o %u'
          'http::/usr/bin/curl -fLC - --retry 3 --retry-delay 3 -o %o %u'
          'https::/usr/bin/curl -fLC - --retry 3 --retry-delay 3 -o %o %u'
          'rsync::/usr/bin/rsync --no-motd -z %u %o'
          'scp::/usr/bin/scp -C %u %o')

# Other common tools:
# /usr/bin/snarf
# /usr/bin/lftpget -c
# /usr/bin/wget

#-- The package required by makepkg to download VCS sources
#  Format: 'protocol::package'
VCSCLIENTS=('bzr::bzr'
            'git::git'
            'hg::mercurial'
            'svn::subversion')

#########################################################################
# ARCHITECTURE, COMPILE FLAGS
#########################################################################
#
CARCH="i686"
CHOST="i686-pc-linux-gnu"

#-- Compiler and Linker Flags
# -march (or -mcpu) builds exclusively for an architecture
# -mtune optimizes for an architecture, but builds for whole processor family
CPPFLAGS="-D_FORTIFY_SOURCE=2"
CFLAGS="-march=i686 -mtune=generic -O2 -pipe -fstack-protector-strong"
CXXFLAGS="-march=i686 -mtune=generic -O2 -pipe -fstack-protector-strong"
CFLAGS=""
CXXFLAGS=""

LDFLAGS="-Wl,-O1,--sort-common,--as-needed,-z,relro"
#-- Make Flags: change this for DistCC/SMP systems
#MAKEFLAGS="-j2"
#-- Debugging flags
DEBUG_CFLAGS="-g -fvar-tracking-assignments"
DEBUG_CXXFLAGS="-g -fvar-tracking-assignments"

#########################################################################
# BUILD ENVIRONMENT
#########################################################################
#
# Defaults: BUILDENV=(!distcc color !ccache check !sign)
#  A negated environment option will do the opposite of the comments below.
#
#-- distcc:  Use the Distributed C/C++/ObjC compiler
#-- color:    Colorize output messages
#-- ccache:  Use ccache to cache compilation
#-- check:    Run the check() function if present in the PKGBUILD
#-- sign:    Generate PGP signature file
#
BUILDENV=(!distcc color !ccache check !sign)
#
#-- If using DistCC, your MAKEFLAGS will also need modification. In addition,
#-- specify a space-delimited list of hosts running in the DistCC cluster.
#DISTCC_HOSTS=""
#
#-- Specify a directory for package building.
#BUILDDIR=/tmp/makepkg

#########################################################################
# GLOBAL PACKAGE OPTIONS
#  These are default values for the options=() settings
#########################################################################
#
# Default: OPTIONS=(strip docs !libtool !staticlibs emptydirs zipman purge !optipng !upx !debug)
#  A negated option will do the opposite of the comments below.
#
#-- strip:      Strip symbols from binaries/libraries
#-- docs:      Save doc directories specified by DOC_DIRS
#-- libtool:    Leave libtool (.la) files in packages
#-- staticlibs: Leave static library (.a) files in packages
#-- emptydirs:  Leave empty directories in packages
#-- zipman:    Compress manual (man and info) pages in MAN_DIRS with gzip
#-- purge:      Remove files specified by PURGE_TARGETS
#-- upx:        Compress binary executable files using UPX
#-- optipng:    Optimize PNG images with optipng
#-- debug:      Add debugging flags as specified in DEBUG_* variables
#
OPTIONS=(strip docs !libtool !staticlibs emptydirs zipman purge !optipng !upx !debug)

#-- File integrity checks to use. Valid: md5, sha1, sha256, sha384, sha512
INTEGRITY_CHECK=(md5)
#-- Options to be used when stripping binaries. See `man strip' for details.
STRIP_BINARIES="--strip-all"
#-- Options to be used when stripping shared libraries. See `man strip' for details.
STRIP_SHARED="--strip-unneeded"
#-- Options to be used when stripping static libraries. See `man strip' for details.
STRIP_STATIC="--strip-debug"
#-- Manual (man and info) directories to compress (if zipman is specified)
MAN_DIRS=({usr{,/local}{,/share},opt/*}/{man,info})
#-- Doc directories to remove (if !docs is specified)
DOC_DIRS=(usr/{,local/}{,share/}{doc,gtk-doc} opt/*/{doc,gtk-doc})
#-- Files to be removed from all packages (if purge is specified)
PURGE_TARGETS=(usr/{,share}/info/dir .packlist *.pod)

#########################################################################
# PACKAGE OUTPUT
#########################################################################
#
# Default: put built package and cached source in build directory
#
#-- Destination: specify a fixed directory where all packages will be placed
#PKGDEST=/home/packages
#-- Source cache: specify a fixed directory where source files will be cached
#SRCDEST=/home/sources
#-- Source packages: specify a fixed directory where all src packages will be placed
#SRCPKGDEST=/home/srcpackages
#-- Log files: specify a fixed directory where all log files will be placed
#LOGDEST=/home/makepkglogs
#-- Packager: name/email of the person or organization building packages
#PACKAGER="John Doe <john@doe.com>"
#-- Specify a key to use for package signing
#GPGKEY=""

#########################################################################
# COMPRESSION DEFAULTS
#########################################################################
#
COMPRESSGZ=(gzip -c -f -n)
COMPRESSBZ2=(bzip2 -c -f)
COMPRESSXZ=(xz -c -z -)
COMPRESSLRZ=(lrzip -q)
COMPRESSLZO=(lzop -q)
COMPRESSZ=(compress -c -f)

#########################################################################
# EXTENSION DEFAULTS
#########################################################################
#
# WARNING: Do NOT modify these variables unless you know what you are
#          doing.
#
PKGEXT='.pkg.tar.xz'
SRCEXT='.src.tar.gz'

# vim: set ft=sh ts=2 sw=2 et:

Then I saved the https://aur.archlinux.org/cgit/aur.git/snapshot/otter-browser.tar.gz from the AUR, extracted it, and I also modified the PKGBUILD by adding: options=(debug !strip) at the beginning.

Code: [Select]
# Maintainer: Steffen Weber <-boenki-gmx-de->

pkgname=otter-browser
pkgver=0.9.12
pkgrel=1
pkgdesc="Browser aiming to recreate classic Opera (12.x) UI using Qt5."
arch=('i686' 'x86_64')
url="http://$pkgname.org"
license=('GPL3')
depends=('qt5-multimedia' 'qt5-webkit' 'hicolor-icon-theme' 'desktop-file-utils' 'hunspell')
makedepends=('cmake' 'qt5-tools')
conflicts=('otter-browser-git')
source=($pkgname-$pkgver.tar.gz::https://github.com/OtterBrowser/$pkgname/archive/v$pkgver.tar.gz)
md5sums=('a9a141506f1ae428b21d69048840621f')
options=(debug !strip)

build() {
  cd $pkgname-$pkgver
  lrelease resources/translations/*.ts
  cmake -DCMAKE_INSTALL_PREFIX="/usr"
  make
}

package() {
  cd $pkgname-$pkgver
  make DESTDIR=$pkgdir install
}

Then I invoked makepkg -s --config ./makepkg.conf, I hope after the compilation the resulting binary will contain the debugging informations.
15
Otter Browser Forum / Compile Otter Browser for Athlon XP processor (without SSE2) in Arch Linux
I have read in this thread https://dndsanctuary.eu/index.php?topic=1505.0 that Otter Browser can be compiled for older processors too which lack of SSE2 instruction set. Temporarily I have to use such an old PC. Its performance is not so low, quite acceptable in fact with 2 GB of RAM, but unfortunately I am unable to install any of my mostly used and favourite browsers (Opera, Chromium, Vivaldi, etc) because all of them need the SSE2 instruction set.

As far as I understanded the thread states that "libqt5webkit5" package should be recompiled from source by adding some compile rules:

Code: [Select]
5. Edit your_build_dir/qtwebkit-opensource-src-version/debian/rules:

Find the "disabled_jit_architectures" variable and add "i386" arch to it.
Code: [Select]
disabled_jit_architectures := armel mips mipsel
# becomes:
disabled_jit_architectures := armel mips mipsel i386

So my question would be that how can I do the compiling for my AMD Athlon XP (1533 Mhz) in Arch Linux and where can I download those mentioned sources?