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

go to bug id or search bugs for

Bug #62850 APC 3.1.12, corrupted stat
Submitted: 2012-08-18 06:00 UTC Modified: 2016-08-31 16:09 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: remi@php.net Assigned: cmb (profile)
Status: Wont fix Package: APC (PECL)
PHP Version: 5.4.6 OS: GNU/Linux
Private report: No CVE-ID: None
View Add Comment Developer Edit
Welcome back! If you're the original bug submitter, here's where you can edit the bug or add additional notes.
If this is not your bug, you can add a comment by following this link.
If this is your bug, but you forgot your password, you can retrieve your password here.
Password:
Status:
Package:
Bug Type:
Summary:
From: remi@php.net
New email:
PHP Version: OS:

 

 [2012-08-18 06:00 UTC] remi@php.net 
Description:
------------
After some time running on a web server, I notice strange results (using control panel)


apc.shm_size	128M
Cached Files 312 ( 16.1 MBytes)
Cached Variables 0 ( 0.0 Bytes)

But :
Free: 155.8 MBytes (121.7%)
Used: -29145544.0 Bytes (-21.7%)

Patches

Add a Patch

Pull Requests

Add a Pull Request

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2012-08-18 06:10 UTC] remi@php.net 
apc_sma_info:
Array
(
    [num_seg] => 1
    [seg_size] => 134217592
    [avail_mem] => 163363136
    [block_lists] => Array
        (
            [0] => Array
                (
                    [0] => Array
                        (
                            [size] => 4280
                            [offset] => 13384584
                        )
                )
        )
)
 [2012-08-19 12:09 UTC] remi@php.net 
After a few time, calling apc.php make apache hangs.
And then all php pages (/server-info, or /server-status still responds)
 [2012-08-21 16:15 UTC] arhimede at gmail dot com 
I noteiced same strange behaviour. Also i got error : "apc_store(): Unable to allocate memory for pool." 
Using the file apc.php, i got negative values for usage .
PHP 5.4.6 , APC 3.1.12
 [2012-08-27 09:06 UTC] remi@php.net 
I'm currently running latest SVN version (3.1.12 + rev327233 and rev327244).

After a few hours (and 200k cache request) I don't encounter this issue.

apc_sma_info:
(
    [num_seg] => 1
    [seg_size] => 134217592
    [avail_mem] => 94959904
    [block_lists] => Array
        (
            [0] => Array
                (
                    [0] => Array
                        (
                            [size] => 3032
                            [offset] => 31149648
                        )
                    [1] => Array
                        (
                            [size] => 648
                            [offset] => 20677400
                        )
                    [2] => Array
                        (
                            [size] => 3000
                            [offset] => 20342888
                        )
                    [3] => Array
                        (
                            [size] => 94953184
                            [offset] => 39264464
                        )
                )
        )
)

Just notice that sum of block size is not exactly avail_mem.
 [2016-08-31 16:09 UTC] cmb@php.net
-Status: Open +Status: Wont fix -Assigned To: +Assigned To: cmb
 [2016-08-31 16:09 UTC] cmb@php.net 
According to <https://bugs.php.net/69618>, APC support has been
discontinued in favor of OPcache, APCu, the session upload
progress API and WinCache. Therefore this issue won't get fixed.
 
PHP Copyright © 2001-2024 The PHP Group
All rights reserved. 		Last updated: Fri Apr 19 22:01:28 2024 UTC