Edit report at http://bugs.php.net/bug.php?id=52284&edit=1
ID: 52284
Comment by: profy dot net at gmail dot com
Reported by: ahar...@php.net
Summary: Reproducible crash using curl_multi functions with
FTP
Status: Verified
Type: Bug
Package: cURL related
Operating System: Ubuntu 10.04 (and others)
PHP Version: 5.3SVN-2010-07-08 (SVN)
Block user comment: N
New Comment:
I think recompile will help.
But I prefer to use distro's php versions for maintainability.
We use several ubuntu versions in production.
Anyway, I added workaround in my code to switch into one-thread mode
when dealing with FTP urls while bug still exists in packaged php5-curl
extension.
Previous Comments:
------------------------------------------------------------------------
[2010-07-27 17:18:14] paj...@php.net
@srinata
I don't think there is a release after 7.21.0. We have to wait for it :)
------------------------------------------------------------------------
[2010-07-27 16:49:14] srina...@php.net
Ok, been debugging this since morning for fun. As Pierre mentioned
earlier, this
bug turns out to be a libcurl bug and a recent commit within libcurl
fixes the
underlying multi handler issue.
now, ubuntu has not shipped with recent versions of libcurl yet. so, you
will
need to manually download libcurl from below: and install to say
/usr/local
http://curl.haxx.se/snapshots/
once this new curl is installed, you will need to recompile php with
--with-
curl=/usr/local
if this satisfies ur concern, then we can close this bug.
hope this helps.
------------------------------------------------------------------------
[2010-07-27 07:48:00] profy dot net at gmail dot com
Reproduced every time when call test script.
Test script:
---------------
<?php
function multi_request($urls, $url_options = array()) {
$mh = curl_multi_init();
foreach ($urls as $id => $url) {
$curly[$id] = curl_init();
curl_setopt($curly[$id], CURLOPT_URL, $url);
curl_setopt($curly[$id], CURLOPT_RETURNTRANSFER, true);
// I've add this opt to speed up request, bug appearing
with or
without this line
curl_setopt($curly[$id], CURLOPT_NOBODY, true);
curl_multi_add_handle($mh, $curly[$id]);
}
$running = null;
do {
$status = curl_multi_exec($mh, $running);
usleep(1000);
} while($status == CURLM_CALL_MULTI_PERFORM || $running);
foreach ($curly as $id => $c) {
$result[$id] = curl_multi_getcontent($c);
curl_multi_remove_handle($mh, $c);
curl_close($c);
}
curl_multi_close($mh);
return $result;
}
$urls = array(
"4358521" =>
"ftp://ftp.ea.com/pub/ea/patches/nfs-underground/pc/en-uk/NFSU_EUROPE_PATCH_4.exe";,
"7458288" =>
"ftp://ftp.nero.com/software/plugins/WMAPlugin20937.exe";,
);
echo "<pre>";
print_R(multi_request($urls));
echo "</pre>";
------------------------------------------------------------------------
[2010-07-27 04:57:11] srina...@php.net
able to reproduce this issue. here is the stack trace:
(gdb) where
#0 0x0000000000520a58 in curl_write_header (data=0x18d3b78 "221
Goodbye.\r\nomplete.\r", size=1, nmemb=14, ctx=0x1876e58)
at
/home/sriramn/dev/php-src/branches/PHP_5_3/ext/curl/interface.c:1123
#1 0x00007f106e187c26 in ?? () from /usr/lib/libcurl.so.4
#2 0x00007f106e1885ad in ?? () from /usr/lib/libcurl.so.4
#3 0x00007f106e18b2ed in ?? () from /usr/lib/libcurl.so.4
#4 0x00007f106e18c64f in ?? () from /usr/lib/libcurl.so.4
#5 0x00007f106e18c792 in ?? () from /usr/lib/libcurl.so.4
#6 0x00007f106e18e9b2 in ?? () from /usr/lib/libcurl.so.4
#7 0x00007f106e1a4813 in curl_multi_cleanup () from
/usr/lib/libcurl.so.4
#8 0x0000000000527208 in _php_curl_multi_close (rsrc=0x1871970) at
/home/sriramn/dev/php-src/branches/PHP_5_3/ext/curl/multi.c:327
#9 0x00000000007f246e in list_entry_destructor (ptr=0x1871970) at
/home/sriramn/dev/php-src/branches/PHP_5_3/Zend/zend_list.c:184
#10 0x00000000007efa3b in zend_hash_del_key_or_index (ht=0xe1eaf0,
arKey=0x0, nKeyLength=0, h=4, flag=1) at
/home/sriramn/dev/php-src/branches/PHP_5_3/Zend/zend_hash.c:497
#11 0x00000000007f1fa0 in _zend_list_delete (id=4) at
/home/sriramn/dev/php-src/branches/PHP_5_3/Zend/zend_list.c:58
#12 0x00000000005271d5 in zif_curl_multi_close (ht=1,
return_value=0x187a140, return_value_ptr=0x0, this_ptr=0x0,
return_value_used=0)
at /home/sriramn/dev/php-src/branches/PHP_5_3/ext/curl/multi.c:319
------------------------------------------------------------------------
[2010-07-21 13:11:10] profy dot net at gmail dot com
Sorry for bothering you, but I see now that bug still exists. My code
already had a workaround for that issue and I not disabled it when
testing against latest version (5.3.3RC3 and libcurl 7.21.0). Now
I've tested again with truly parallel 5 ftp requests and it is still
failing as it was with PHP 5.2.13 on Win XP SP3
------------------------------------------------------------------------
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