
[timestamp] [core:notice] [pid 20056] AH00060: seg fault or similar nasty error detected in the parent process

File transfer was not working from laptop to smartphone and vice versa. Devices connected to each other without problems.
There is a plugin TransferService in Plugins section. When I've tried to wnable it the message with error was shown:

There was error running Half-Life on Source engine in Ubuntu 14.04 error was thrown.
Unable to load interface VGUI_Surface030 from vguimatsurface.so

If Vagrant shows the message on vm start this means that virtual machine can't boot. And there is no case to connect through SSH.

STOP 0X00000074 (0X0000000000000002, 0XFFFFF88002E22B20, 0X0000000000000002, 0XFFFFFFFFC000009A)
If you get BSOD STOP 0X00000074 error on Windows booting, you must to boot from bootable Windows DVD installation disc.
Run bcdedit commnad from Recovery console and type next commands.
bcdedit /deletevalue {default} numproc bcdedit /deletevalue {default} truncatememory
Those commands would change quantity of processors and maximum memory option.

Sometimes there could be an issue with huge DB which was created not with backup_migrate module but raw mysqldump command. The size of the DB could be over 2GB. Most of the data of this dump are cache tables and logs. Editing this file is not a good choice.
Current solution will remove INSERTS from the file. sed command come in handy here:

This article about colorbox and views: how to display first thumb styled image of the multiple image field and after click on it display all images in colorbox.
First of all install views, libraries, colorbox и colorbox plugin.
$ drush en views libraries colorbox -y
Download colorbox plugin and unpack it in libraries folder.

There are much and more manuals in net about this stuff. But noone of them help me with this problem. I can't boot from usb flash on table.
First of all, you must enable usb boot. To enter “System Restore” you need to hold Shift key and click on Reboot option.
“Diag” → “Advanced options” → “UEFI Firmware Settings”.

This error caused module error, admin interface break-up, features etc.
https://www.drupal.org/node/1716470
At this thread propose to check if module views_ui is turned on. Of course it's on!
Another solutions is to comment out lines where file attached. But it's bad idea.

Imagine, that you have float field with 2 symbols after dot.
At the views page with filter you need to filter values by all range of module of user's float input.
Ex: user input 2.45, we filter all values X>=2 AND X<(2+1)
With the standard accessories of views you can filter with two filter “from” and “to”. But in FO we have only one field.
To solve this problem we can use hook_views_query_alter.
We already have a view. To make our hook work, we must set the unique tag to the view, to check it in out hook. mymodule_query in example code.