It all started with strange apache crash. In the log: *** glibc detected *** /usr/sbin/apache2: free(): invalid next size (fast): 0x08331428 *** After googling I found a few bug reports with such line on php related lists. I tried starting command line php. The result was: *** glibc detected *** php: free(): invalid next size (fast): 0x08388890 *** ======= Backtrace: ========= /lib/libc.so.6[0xb7b1daf2] /lib/libc.so.6(cfree+0x87)[0xb7b1f787] /usr/lib/php5/lib/php/extensions/no-debug-zts-20060613/java.so(java_destroy_cfg+ 0x64)[0xb727dce4] /usr/lib/php5/lib/php/extensions/no-debug-zts-20060613/java.so(zm_shutdown_java+ 0x23)[0xb72794e3] php(module_destructor+0x5f)[0x823737f] php[0x823e584] php(zend_hash_graceful_reverse_destroy+0x27)[0x823e837] php(zend_shutdown+0x44)[0x8232a94] php(php_module_shutdown+0x4b)[0x81e2d3b] php(main+0x535)[0x82bdc65] /lib/libc.so.6(__libc_start_main+0xe0)[0xb7acd3f0] php[0x8082661] ======= Memory map: ======== 08048000-08357000 r-xp 00000000 03:05 1558671 /usr/lib/php5/bin/php 08357000-08367000 r--p 0030e000 03:05 1558671 /usr/lib/php5/bin/php 08367000-08384000 rw-p 0031e000 03:05 1558671 /usr/lib/php5/bin/php 08384000-0867f000 rw-p 08384000 00:00 0 [heap] b67f4000-b67fd000 r-xp 00000000 03:05 1720463 /lib/libnss_files-2.7.so b67fd000-b67fe000 r--p 00008000 03:05 1720463 /lib/libnss_files-2.7.so b67fe000-b67ff000 rw-p 00009000 03:05 1720463 /lib/libnss_files-2.7.so b6931000-b694e000 r-xp 00000000 03:05 328432 /usr/lib/php5/lib/php/extensions/no-debug-zts-20060613/suhosin.so b694e000-b6953000 rw-p 0001c000 03:05 328432 /usr/lib/php5/lib/php/extensions/no-debug-zts-20060613/suhosin.so b6953000-b6954000 rw-p b6953000 00:00 0 b6cdf000-b6ce6000 r-xp 00000000 03:05 1721937 /lib/librt-2.7.so b6ce6000-b6ce7000 r--p 00006000 03:05 1721937 /lib/librt-2.7.so b6ce7000-b6ce8000 rw-p 00007000 03:05 1721937 /lib/librt-2.7.so b7000000-b7021000 rw-p b7000000 00:00 0 b7021000-b7100000 ---p b7021000 00:00 0 b7155000-b715f000 r-xp 00000000 03:05 1869341 /usr/lib/gcc/i686-pc-linux-gnu/4.2.2/libgcc_s.so.1 b715f000-b7160000 r--p 00009000 03:05 1869341 /usr/lib/gcc/i686-pc-linux-gnu/4.2.2/libgcc_s.so.1 b7160000-b7161000 rw-p 0000a000 03:05 1869341 /usr/lib/gcc/i686-pc-linux-gnu/4.2.2/libgcc_s.so.1 b7161000-b7237000 r-xp 00000000 03:05 1147750 /usr/lib/php5/lib/php/extensions/no-debug-zts-20060613/imap.so b7237000-b7238000 r--p 000d5000 03:05 1147750 /usr/lib/php5/lib/php/extensions/no-debug-zts-20060613/imap.so When I deactivated this extension everything was working again.
*** This bug has been marked as a duplicate of bug 200653 ***
