Bug #75738 [Com]: mmap/munmap loop?

Edit report at https://bugs.php.net/bug.php?id=75738&edit=1 ID: 75738 Comment by: albertcasademont at gmail dot com Reported by: albertcasademont at gmail dot com Summary: mmap/munmap loop? Status: Open Type: Bug Package: CGI/CLI related Operating System: Debian Stretch PHP Version: 7.1.12 Block user comment: N Private report: N New Comment: Hi Nikita, Thanks, trying it now, we normally see the problem happening every 10-20 minutes, will get back asap. Previous Comments: ------------------------------------------------------------------------ [2017-12-27 16:43:43] nikic@php.net Does the problem disappear if you set the USE_ZEND_ALLOC=0 environment variable? ------------------------------------------------------------------------ [2017-12-27 16:11:46] albertcasademont at gmail dot com Description: ------------ Hi, We're seeing some random neverending loops on Symfony3 CLI commands. stracing the processes we can see a series of looping calls to mmap/munmap/madvise mmap(NULL, 4198400, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe554fff000 munmap(0x7fe554fff000, 4198400) = 0 mmap(NULL, 6291456, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe554e00000 munmap(0x7fe555201000, 2093056) = 0 madvise(0x7fe554e00000, 4198400, MADV_HUGEPAGE) = 0 Saw bug #75368 but it seems like the issue keeps repeating itself. I'm afraid I can't provide a script to reproduce it, seems to occur randomly, quite frustrating. Any ideas? Thanks ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=75738&edit=1