Ok. Big thnk for help.
One question about
Sep 28 23:47:35 itex kernel: [3459756.058461] php-cgi: segfault at 350a4520 ip b7258785 sp bfd59cd8 error 4 in libc-2.11.1.so[b71e5000+153000]
Sep 28 23:47:42 itex kernel: [3459763.275734] php-cgi: segfault at 39000ca0 ip b71c4785 sp bfc71448 error 4 in libc-2.11.1.so[b7151000+153000]
One web page on hosting have problem. When I want to open one category in this page have 500 Error.
And in messages.log i see new line with php-cgi: segfault.
May it is damage? may be it is need to reinstall it?