php 5.2.17 with opcache segmentation fault error

[CalvinLam]

/usr/local/php/bin/php -z /usr/local/php/lib/php/extensions/no-debug-zts-20060613/opcache.so
Segmentation fault

sys log:
Feb 18 10:05:25 xxx kernel: [1000023.715811] php[25427]: segfault at c9 ip b779bf71 sp bf876e00 error 4 in opcache.so[b7797000+1c000]
Feb 18 10:05:39 xxx kernel: [1000037.535885] php[25563]: segfault at c9 ip b7776f71 sp bfe77ab0 error 4 in opcache.so[b7772000+1c000]
Feb 18 10:12:37 xxx kernel: [1000454.913850] php[32579]: segfault at c9 ip b7751f71 sp bfca0e60 error 4 in opcache.so[b774d000+1c000]
Feb 18 10:15:55 xxx kernel: [1000653.139333] php[1916]: segfault at c9 ip b775ef71 sp bfdf5330 error 4 in opcache.so[b775a000+1c000]
Feb 18 10:18:31 xxx kernel: [1000809.002382] php[3084]: segfault at c9 ip b779af71 sp bf8b2050 error 4 in opcache.so[b7796000+1c000]
Feb 18 10:19:08 xxx kernel: [1000846.113126] php[3385]: segfault at c9 ip b77a9f71 sp bfb0da90 error 4 in opcache.so[b77a5000+1c000]
Feb 18 10:19:09 xxx kernel: [1000847.244750] php[3387]: segfault at c9 ip b77c4f71 sp bfa4ecb0 error 4 in opcache.so[b77c0000+1c000]

[dstogov]

We can do nothing with such report. We need a way to reproduce the crash to fix it. Backtrace also may be helpful in some cases.