php.net |  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login

go to bug id or search bugs for

Bug #76835 FPM stuck at getrandom()
Submitted: 2018-09-02 07:25 UTC Modified: 2018-09-02 11:00 UTC
From: olafvdspek at gmail dot com Assigned: cmb (profile)
Status: Not a bug Package: FPM related
PHP Version: 7.2.9 OS: Debian
Private report: No CVE-ID: None
View Developer Edit
Welcome back! If you're the original bug submitter, here's where you can edit the bug or add additional notes.
If you forgot your password, you can retrieve your password here.
Password:
Status:
Package:
Bug Type:
Summary:
From: olafvdspek at gmail dot com
New email:
PHP Version: OS:

 

 [2018-09-02 07:25 UTC] olafvdspek at gmail dot com 
Description:
------------
Debian is running in a VM.
At boot, it tries to start php-fpm via systemd. After a minute or so, it times out as php-fpm seems stuck at a getrandom() call.



Actual result:
--------------
# strace -p 383
strace: Process 383 attached
getrandom(0x7ffd606d51f0, 16, 0)        = ? ERESTARTSYS (To be restarted if SA_RESTART is set)
--- SIGTERM {si_signo=SIGTERM, si_code=SI_USER, si_pid=1, si_uid=0} ---
+++ killed by SIGTERM +++

# service php7.2-fpm status
● php7.2-fpm.service - The PHP 7.2 FastCGI Process Manager
   Loaded: loaded (/lib/systemd/system/php7.2-fpm.service; enabled; vendor preset: enabled)
   Active: failed (Result: timeout) since Sun 2018-09-02 09:22:00 CEST; 2min 28s ago
     Docs: man:php-fpm7.2(8)
  Process: 383 ExecStart=/usr/sbin/php-fpm7.2 --nodaemonize --fpm-config /etc/php/7.2/fpm/php-fpm.conf (code=killed, signal=TERM)
 Main PID: 383 (code=killed, signal=TERM)

Sep 02 09:20:29 debian systemd[1]: Starting The PHP 7.2 FastCGI Process Manager...
Sep 02 09:22:00 debian systemd[1]: php7.2-fpm.service: Start operation timed out. Terminating.
Sep 02 09:22:00 debian systemd[1]: php7.2-fpm.service: Failed with result 'timeout'.
Sep 02 09:22:00 debian systemd[1]: Failed to start The PHP 7.2 FastCGI Process Manager.

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2018-09-02 08:52 UTC] spam2 at rhsoft dot net 
it's not a bug when you missed to setup your VM proper so that it don't run out of random


install "haveged" and consider what such a setup has for impact on encryption

i recommend replace every certificate generated on that machine, especial ECC is sensible for broken setups
 [2018-09-02 11:00 UTC] cmb@php.net
-Status: Open +Status: Not a bug -Assigned To: +Assigned To: cmb
 [2018-09-02 11:00 UTC] cmb@php.net 
Indeed, if a system fails to get 16 random bytes, that doesn't
look like a bug in PHP.
 
PHP Copyright © 2001-2025 The PHP Group
All rights reserved. 		Last updated: Fri Oct 31 03:00:01 2025 UTC