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Bug #59626 Segmentaion fault for the same servers in pool
Submitted: 2011-02-16 12:50 UTC Modified: 2021-03-25 16:30 UTC
Avg. Score:4.0 ± 1.0
Reproduced:1 of 2 (50.0%)
Same Version:0 (0.0%)
Same OS:0 (0.0%)
From: andrey at niakhaichyk dot org Assigned: cmb (profile)
Status: Closed Package: memcache (PECL)
PHP Version: 5.3.5 OS: Gentoo x86_64
Private report: No CVE-ID: None
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 [2011-02-16 12:50 UTC] andrey at niakhaichyk dot org
When I add the same server to pool and use persistance connection it will generate segmentation fault for getExtendedStats

Reproduce code:
    $memcache_obj = new Memcache;
    $memcache_obj->addServer('localhost', 11211);
    $memcache_obj->addServer('localhost', 11211);
    //$memcache_obj->addServer('failed_host', 11211);
    $stats = $memcache_obj->getExtendedStats();

Expected result:
No segmentation fault

Actual result:
segmentation fault


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 [2011-05-21 19:24 UTC] shawn at digitalpoint dot com
We had the same thing happening without persistent connections 
when upgrading to memcache 3.0.x.  PHP version 5.3.6, 
memcached 1.4.5 and memcache version 3.0.6.  Rolling memcache 
back to 2.2.6 fixed it.
 [2021-03-25 16:30 UTC]
-Status: Open +Status: Closed -Assigned To: +Assigned To: cmb
 [2021-03-25 16:30 UTC]
The official bug tracker for PECL/memcache is now at

So, if this is still an issue with either of the current memcache
versions (4 or 8), please file an issue there.
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