[BUG] Phalcon\Config->get() is crashing Phalcon: "invalid opcode in phalcon.so".

[temuri416]

The set-up:

1. latest phalcon 1.3.0
2. phpinfo.htm <--- phpinfo

Very early in the exec cycle of my app there's this code:

/** @var Phalcon\Config */
$config = require($configFilename);

if ($config->get('params')['static_assets_dir'] === FALSE) {
    // Fatal error. Execution will not continue.
    die('Static assets directory does not exist or is not writable.');
}

Executing $config->get() crashes php-fpm with the following message in kern.log:

krfsphalcon kernel: [ 4503.498064] traps: php-fpm[30105] trap invalid opcode ip:7f92feec54c7 sp:7fff90872800 error:0 in phalcon.so[7f92fee68000+262000]

Please help :-)

Thanks!

[temuri416]

Hm. Compiling it from ext/ fixed the crash.

I may have used a wrong php-config when I compiled it the first time.

Actually, how can I compile Phalcon and indicate which of the two available php-config utils to use?

[ghost]

./configure --with-php-config=/path/to/php-config

invalid opcode

This means that gcc generated something very wrong that is not supported by your processor (I noticed several times that -march=native may generate the code not supported by the CPU the code is compiled on). If you want to debug this, let me know :-)

[temuri416]

:-) no, thank you. doesn't look it needs debugging. I just think that the wrong php-config got in the way.

My question was - how do I use automatic build/install and still be able to point to the right php-config?

[ghost]

I think you will have to edit ./build/install script:

#Perform the compilation
phpize && ./configure --enable-phalcon && make && make install && echo -e "\nThanks for compiling Phalcon!\nBuild succeed: Please restart your web server to complete the installation"

Replace with

#Perform the compilation
/path/to/proper/phpize && ./configure --with-php-config=/path/to/php-config --enable-phalcon && make && make install && echo -e "\nThanks for compiling Phalcon!\nBuild succeed: Please restart your web server to complete the installation"

[temuri416]

ok, something is definitely wrong.

I did fix ./build/install script according to your instructions, but phalcon.so is crashing again on the same line.

Compiling it from ext/ results in:

Fatal error: Call to undefined method Phalcon\Mvc\View::isDisabled()

Can we investigate it?

Thanks!

[temuri416]

let me do a bit of investigation before we return to this.

[temuri416]

Here's the situation with latest 1.3.0.

1. If I edit install script as it is described above and provide correct phpize and php-config, Phalcon explodes as I described it originally. This means, my original suggestion that I may have used the wrong php-config is irrelevant. It crashes no matter which php-config was used.
2. If I build it from ext/ folder with:

/var/web/php/bin/phpize
./configure CFLAGS="-O0 -g3" --with-php-config=/var/web/php/bin/php-config
make -j4
sudo make install

then #1714 is back.

Editing ext/di.c and commenting out:

if (!nusphere_dbg_present) {
    /*phalcon_di_object_handlers.get_properties = phalcon_di_get_properties;*/
}

and recompiling fixes everything.

So, two questions:

1. Why does the result default install script crash as I described
2. Why is [BUG] Latest build of Phalcon 1.3.0 is crashing PHPEd #1714 back?

Thanks!

[ghost]

As for 1 — this is probably a bug ig gcc — I suspect it uses AVX instructions though they are not supported by your CPU.

Could you please:

1. Post the output of cat /proc/cpuinfo | grep flags
2. Post the output of gcc -march=native -mtune=native -Q -O2 --help=target
3. Analyze the core dump with gdb: gdb /var/web/php/sbin/php-fpm unpacked/CoreDump and post the output of x/16i $pc (this command should be run at (gdb) prompt)

[temuri416]

I'm gonna get to this issue a bit later. It's still on my radar.

[temuri416]

Not sure what was going on earlier. I've just compiled latest 1.3.0 and all is well. I still suspect that something is not right on systems where there are two php-config files and the one that's picked up by the script isn't the one that belongs to currently used PHP instance.

[digitronac]

thanks @temuri416 ! compiling from ext/ fixed same problem for me on php 5.5.10 and phalcon 1.3.1.
just to add for someone with same problem that when running from CLI error that i got was "illegal instruction" and from nginx was opcode error like yours