Olivier Doucet odoucet
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| #0 zval_mark_grey (pz=0x1419fd0) at /usr/src/build/php/php-5.4.25/Zend/zend_gc.c:388 | |
| #1 0x00000000007fdeb5 in zval_mark_grey (pz=0x1419fd0) at /usr/src/build/php/php-5.4.25/Zend/zend_gc.c:432 | |
| #2 0x00000000007fedd5 in gc_mark_roots () at /usr/src/build/php/php-5.4.25/Zend/zend_gc.c:501 | |
| #3 gc_collect_cycles () at /usr/src/build/php/php-5.4.25/Zend/zend_gc.c:795 | |
| #4 0x00000000007ff028 in gc_zobj_possible_root (zv=<optimized out>) at /usr/src/build/php/php-5.4.25/Zend/zend_gc.c:221 | |
| #5 0x00000000007ec0a0 in zend_hash_destroy (ht=0x1c63710) at /usr/src/build/php/php-5.4.25/Zend/zend_hash.c:560 | |
| #6 0x00000000007ddd9d in _zval_dtor_func (zvalue=0x1c64288) at /usr/src/build/php/php-5.4.25/Zend/zend_variables.c:45 | |
| #7 0x00000000007d0dad in _zval_dtor (zvalue=<optimized out>) at /usr/src/build/php/php-5.4.25/Zend/zend_variables.h:35 | |
| #8 _zval_ptr_dtor (zval_ptr=0x1c6b0d0) at /usr/src/build/php/php-5.4.25/Zend/zend_execute_API.c:436 | |
| #9 0x0000000000801167 in zend_object_std_dtor (object=0x1c13e88) at /usr/src/build/ |
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| process arc_adapt : | |
| blocked in status D | |
| /proc/(pidof arc_adapt)/stat : | |
| 1564 (arc_adapt) D 2 0 0 0 -1 2269248 0 0 0 0 0 24533 0 0 0 -20 1 0 911 0 0 18446744073709551615 0 0 0 0 0 0 0 2147483647 0 18446744072101946508 0 0 17 4 0 0 0 0 0 0 0 0 0 0 0 0 0 | |
| (no change to this file after 10s sleep so this process seems to have no activity - cannot run "top" to make sure, it hangs) |
odoucet
/ modsecurity_id_extractor.php
Created
May 6, 2015 12:23
Extract modsecurity rule ID from modsec_audit.log
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| <?php | |
| /*************** | |
| * Extract rule ID from modsecurity log | |
| * and print TOP hits by rule ID | |
| * | |
| * @author github.com/odoucet | |
| * | |
| * useful when using mod_security as DETECTION_ONLY mode | |
| * | |
| * USAGE : |
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| <?php | |
| $fp = fopen('/etc/named/named.stats', 'r'); | |
| $data = array(); | |
| $start = false; | |
| $currentHost = ''; | |
| while($line = fgets($fp, 1024)) { | |
| if (strpos($line, 'Per Zone Query Statistics ') !== false) { |
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| # | |
| # Automatically generated file; DO NOT EDIT. | |
| # Linux/x86_64 3.2.0 Kernel Configuration | |
| # | |
| CONFIG_64BIT=y | |
| # CONFIG_X86_32 is not set | |
| CONFIG_X86_64=y | |
| CONFIG_X86=y | |
| CONFIG_INSTRUCTION_DECODER=y | |
| CONFIG_OUTPUT_FORMAT="elf64-x86-64" |
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| # | |
| # Automatically generated file; DO NOT EDIT. | |
| # Linux/x86_64 3.7.1 Kernel Configuration | |
| # | |
| CONFIG_64BIT=y | |
| CONFIG_X86_64=y | |
| CONFIG_X86=y | |
| CONFIG_INSTRUCTION_DECODER=y | |
| CONFIG_OUTPUT_FORMAT="elf64-x86-64" | |
| CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig" |
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| Program received signal SIGSEGV, Segmentation fault. | |
| zval_mark_grey (pz=0x12abcd8) at /usr/src/build/php-5.4.11/Zend/zend_gc.c:388 | |
| 388 /usr/src/build/php-5.4.11/Zend/zend_gc.c: No such file or directory. | |
| (gdb) bt | |
| #0 zval_mark_grey (pz=0x12abcd8) at /usr/src/build/php-5.4.11/Zend/zend_gc.c:388 | |
| #1 0x00000000007f8495 in zval_mark_grey (pz=0x12abcd8) at /usr/src/build/php-5.4.11/Zend/zend_gc.c:432 | |
| #2 0x00000000007f93b5 in gc_mark_roots () at /usr/src/build/php-5.4.11/Zend/zend_gc.c:501 | |
| #3 gc_collect_cycles () at /usr/src/build/php-5.4.11/Zend/zend_gc.c:795 | |
| #4 0x00000000007f9740 in gc_zval_possible_root (zv=<optimized out>) at /usr/src/build/php-5.4.11/Zend/zend_gc.c:166 | |
| #5 0x00000000007e68d0 in zend_hash_destroy (ht=0x29455a0) at /usr/src/build/php-5.4.11/Zend/zend_hash.c:560 |
odoucet
/ gist:5571720
Created
May 13, 2013 21:35
debug backtrace when segfault from PHP 5.4.15 + ZendOptimizerPlus
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| (gdb) bt | |
| #0 zval_mark_grey (pz=0x272afb8) at /usr/src/build/php-5.4.15/Zend/zend_gc.c:388 | |
| #1 0x00000000007fafe5 in zval_mark_grey (pz=0x272afb8) at /usr/src/build/php-5.4.15/Zend/zend_gc.c:432 | |
| #2 0x00000000007fbf05 in gc_mark_roots () at /usr/src/build/php-5.4.15/Zend/zend_gc.c:501 | |
| #3 gc_collect_cycles () at /usr/src/build/php-5.4.15/Zend/zend_gc.c:795 | |
| #4 0x00000000007fc290 in gc_zval_possible_root (zv=<optimized out>) at /usr/src/build/php-5.4.15/Zend/zend_gc.c:166 | |
| #5 0x00000000007fe297 in zend_object_std_dtor (object=0x390ab38) at /usr/src/build/php-5.4.15/Zend/zend_objects.c:54 | |
| #6 0x00000000007fe2c9 in zend_objects_free_object_storage (object=0x272afb8) at /usr/src/build/php-5.4.15/Zend/zend_objects.c:137 | |
| #7 0x000000000080406b in zend_objects_store_del_ref_by_handle_ex (handle=<optimized out>, handlers=<optimized out>) at /usr/src/build/php-5.4.15/Zend/zend_objects_API.c:221 | |
| #8 0x0000000000804093 in zend_objects_store_del_ref (zobject=0x390b088) at /usr/src/build/php-5.4.15/Zend/zend_objects_API. |
odoucet
/ gist:5600630
Last active
December 17, 2015 11:09
Rollback kernel commit f51d67a64f32cd81ea8b67ca964fb7cf7e783b2e that introduced a ~20% performance drop on some benchmarks
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| --- linux-3.9.2/kernel/power/qos.c 2013-05-11 16:19:28.000000000 +0200 | |
| +++ linux-3.9.2/kernel/power/qos.c 2013-05-17 19:07:35.907312364 +0200 | |
| @@ -283,7 +283,8 @@ | |
| */ | |
| int pm_qos_request(int pm_qos_class) | |
| { | |
| - return pm_qos_read_value(pm_qos_array[pm_qos_class]->constraints); | |
| + return 0; | |
| + // return pm_qos_read_value(pm_qos_array[pm_qos_class]->constraints); | |
| } |
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| #0 zval_mark_grey (pz=0x1ebb198) at /usr/src/build/php-5.5.0RC1/Zend/zend_gc.c:388 | |
| #1 0x0000000000823d95 in zval_mark_grey (pz=0x1ebb198) at /usr/src/build/php-5.5.0RC1/Zend/zend_gc.c:432 | |
| #2 0x0000000000824cb5 in gc_mark_roots () at /usr/src/build/php-5.5.0RC1/Zend/zend_gc.c:501 | |
| #3 gc_collect_cycles () at /usr/src/build/php-5.5.0RC1/Zend/zend_gc.c:795 | |
| #4 0x0000000000825040 in gc_zval_possible_root (zv=<optimized out>) at /usr/src/build/php-5.5.0RC1/Zend/zend_gc.c:166 | |
| #5 0x0000000000811fc0 in zend_hash_destroy (ht=0x3561738) at /usr/src/build/php-5.5.0RC1/Zend/zend_hash.c:560 | |
| #6 0x00000000008038dd in _zval_dtor_func (zvalue=0x3592ce8) at /usr/src/build/php-5.5.0RC1/Zend/zend_variables.c:45 | |
| #7 0x00000000007f5868 in _zval_dtor (zvalue=<optimized out>) at /usr/src/build/php-5.5.0RC1/Zend/zend_variables.h:35 | |
| #8 i_zval_ptr_dtor (zval_ptr=<optimized out>) at /usr/src/build/php-5.5.0RC1/Zend/zend_execute.h:81 | |
| #9 _zval_ptr_dtor (zval_ptr=<optimized out>) at /usr/src/build/php-5.5.0RC1/Zend/zend_execute_API.c |
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