Bug #68409 [Opn->Fbk]: exit hangs forever when running CLI script

Edit report at https://bugs.php.net/bug.php?id=68409&edit=1 ID: 68409 Updated by: ab@php.net Reported by: grotagroten at hotmail dot com Summary: exit hangs forever when running CLI script -Status: Open +Status: Feedback Type: Bug Package: *General Issues Operating System: Windows/Linux PHP Version: 5.6.2 Block user comment: N Private report: N New Comment: I'm afraid there's not enough info. Please inspect the script and your setup. As you're saying all the request shutdown looks like gets done, that could be anything like some thread still polling on a connection which always stays open. I'd suggest the following checklist: - deactivate all the non core extensions - deactivate some parts of the script or replace some mocks - if it's using some connections - try to kill the counterpart processes (if you can control them). If you see that EOF arrives - look for th ecorresponding code part. - as last, check which core extensions you use, try deactivate one by one replacing the corresponding parts with mocks - if it happens on the pure core only, probably no another way then script debugging, deactivating parts replacing them with mock and checking the result That should be enough for the first time. Doing this you'll sure have some more perceptions to go further. Thanks Previous Comments: ------------------------------------------------------------------------ [2014-11-12 12:43:58] grotagroten at hotmail dot com Description: ------------ I have a CLI script that hangs on termination. The script will call exit when it is done, the shutdown function will be called, destructors will be called, and then it just waits for nothing to happen. I have to manually terminate the process to get it to exit. It does not consume any resources, it just hangs forever. The same behaviour is observed with the die function. It appears on both 5.5 and 5.6. Test script: --------------- I do not have a simple test script that can reproduce it at the moment, but I have a log from running the script with strace. I have uploaded the trace to the following location: http://www.filedropper.com/trace The end of the trace looks like this, it seems to be polling for something. fstat(12, {st_mode=S_IFREG|0777, st_size=1314, ...}) = 0 fstat(12, {st_mode=S_IFREG|0777, st_size=1314, ...}) = 0 fstat(12, {st_mode=S_IFREG|0777, st_size=1314, ...}) = 0 fstat(12, {st_mode=S_IFREG|0777, st_size=1314, ...}) = 0 mmap(NULL, 1314, PROT_READ, MAP_SHARED, 12, 0) = 0x7fc092237000 munmap(0x7fc092237000, 1314) = 0 close(12) = 0 close(3) = 0 close(4) = 0 write(6, "\1\0\0\0\0\0\0\0", 8) = 8 write(11, "\1\0\0\0\1", 5) = 5 shutdown(11, SHUT_RDWR) = 0 close(11) = 0 munmap(0x7fc087db9000, 266240) = 0 close(2) = 0 close(1) = 0 munmap(0x7fc092235000, 4096) = 0 close(0) = 0 munmap(0x7fc092236000, 4096) = 0 brk(0x2d38000) = 0x2d38000 munmap(0x7fc087d37000, 266240) = 0 munmap(0x7fc087d78000, 266240) = 0 munmap(0x7fc087e39000, 266240) = 0 munmap(0x7fc087e7a000, 266240) = 0 munmap(0x7fc087ebb000, 266240) = 0 munmap(0x7fc087efc000, 266240) = 0 munmap(0x7fc087f3d000, 266240) = 0 munmap(0x7fc087f7e000, 266240) = 0 munmap(0x7fc087fbf000, 266240) = 0 munmap(0x7fc08c035000, 266240) = 0 munmap(0x7fc08c076000, 266240) = 0 munmap(0x7fc08c0b7000, 266240) = 0 munmap(0x7fc092055000, 266240) = 0 write(10, "\1\0\0\0\0\0\0\0", 8) = 8 poll([{fd=5, events=POLLIN}], 1, 4294967295 Process 3037 detached <detached ...> Expected result: ---------------- Script should terminate on exit Actual result: -------------- Script hangs forever ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=68409&edit=1