Edit report at http://bugs.php.net/bug.php?id=52501&edit=1
ID: 52501
Patch added by: f...@php.net
Reported by: marekroman1 at gmail dot com
Summary: Misconfigured Sendmail sends PHP-FPM into an
infinite loop
Status: Feedback
Type: Bug
Package: FPM related
Operating System: DebianLenny2.6.26-2-openvz-amd64
PHP Version: 5.3.3
Assigned To: fat
Block user comment: N
New Comment:
The following patch has been added/updated:
Patch Name: fpm-nomorelibevent.v5.patch
Revision: 1284709749
URL:
http://bugs.php.net/patch-display.php?bug=52501&patch=fpm-nomorelibevent.v5.patch&revision=1284709749
Previous Comments:
------------------------------------------------------------------------
[2010-09-14 17:37:55] f...@php.net
Can you please test the following patch ?
This patch removes libevent from FPM. A simple select base event
mechanism has
been made instead. It should prevent the forking problem when using
libevent.
------------------------------------------------------------------------
[2010-09-14 17:36:23] f...@php.net
The following patch has been added/updated:
Patch Name: fpm-nomorelibevent.v2.patch
Revision: 1284478582
URL:
http://bugs.php.net/patch-display.php?bug=52501&patch=fpm-nomorelibevent.v2.patch&revision=1284478582
------------------------------------------------------------------------
[2010-07-31 21:46:46] marekroman1 at gmail dot com
Oh, thanks fat.
------------------------------------------------------------------------
[2010-07-31 17:25:58] f...@php.net
the problem does not exist when using kqueue,poll or select on openbsd
(and
certainely on freebsd also).
the problem exists on linux when using epoll,poll or select.
It's all the problem of the libevent when forking.
------------------------------------------------------------------------
[2010-07-31 03:23:51] f...@php.net
when calling the mail() function on unix, there is a fork to run the
sendmail command. If the sendmail does not return
quickly and FPM tries to kill the process because of
request_terminate_timeout the bug happens.
Here is a sample C code to simulate a bug sendmail config:
// sendmail_bug.c
#include <stdio.h>
int main() {
char buf[11];
while (1) {
read(0, buf, 10);
}
return 0;
}
gcc -o /tmp/sendmail_bug sendmail_bug.c
then configure your php.ini this way:
sendmail_path = /tmp/sendmail_bug
set request_terminate_timeout to a 5s and load a page with the mail
function.
------------------------------------------------------------------------
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