ID: 32255
Updated by: [EMAIL PROTECTED]
Reported By: antoine dot bajolet at tdf dot fr
-Status: Open
+Status: Verified
Bug Type: HTTP related
Operating System: Linux 2.4.29
-PHP Version: 4.3.10
+PHP Version: 4CVS, 5CVS (2005-03-14)
Previous Comments:
------------------------------------------------------------------------
[2005-03-11 14:57:37] antoine dot bajolet at tdf dot fr
Problem still persists with :
- RH9 glibc update (glibc-2.3.2-27.9.7)
- Php4 stable snapshot (php4-STABLE-200503111130)
OR php-5.0.3.
It seems not to be the resolve part of the wrapper : same test script
with a simple gethostbyname() don't leaks memory.
Here is a strace of one loop (if it helps)
nanosleep({2, 0}, {2, 0}) = 0
write(1, "14264\n", 614264
) = 6
socket(PF_UNIX, SOCK_STREAM, 0) = 3
connect(3, {sa_family=AF_UNIX, path="/var/run/.nscd_socket"}, 110) = -1
ENOENT (No such file or directory)
close(3) = 0
open("/etc/hosts", O_RDONLY) = 3
fcntl64(3, F_GETFD) = 0
fcntl64(3, F_SETFD, FD_CLOEXEC) = 0
fstat64(3, {st_mode=S_IFREG|0644, st_size=160, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0x40016000
read(3, "127.0.0.1 localhost"..., 4096) = 160
read(3, "", 4096) = 0
close(3) = 0
munmap(0x40016000, 4096) = 0
socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 3
connect(3, {sa_family=AF_INET, sin_port=htons(53),
sin_addr=inet_addr("32.2.32.10")}, 28) = 0
send(3, "\257\1\1\0\0\1\0\0\0\0\0\0\5rpnet\10intranet\3tdf\2"..., 39,
0) = 39
gettimeofday({1110548703, 854413}, NULL) = 0
poll([{fd=3, events=POLLIN, revents=POLLIN}], 1, 5000) = 1
ioctl(3, FIONREAD, [123]) = 0
recvfrom(3,
"\257\1\205\200\0\1\0\2\0\1\0\1\5rpnet\10intranet\3tdf\2"..., 1024, 0,
{sa_family=AF_INET, sin_port=htons(53),
sin_addr=inet_addr("32.2.32.10")}, [16]) = 123
close(3) = 0
socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 3
connect(3, {sa_family=AF_INET, sin_port=htons(80),
sin_addr=inet_addr("32.23.32.105")}, 16) = 0
send(3, "GET / HTTP/1.0\r\n", 16, 0) = 16
send(3, "Host: rpnet.intranet.tdf.fr\r\n", 29, 0) = 29
send(3, "\r\n", 2, 0) = 2
select(4, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
select(4, [3], NULL, NULL, {60, 0}) = 1 (in [3], left {59,
940000})
recv(3, "HTTP/1.1 200 OK\r\nDate: Fri, 11 M"..., 8192, 0) = 1448
close(3) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
nanosleep({2, 0}, <unfinished ...>
Can it be a bug of gcc (mdk8.1 -> 2.96, RH9 -> 3.2.2) ?
------------------------------------------------------------------------
[2005-03-10 13:05:55] antoine dot bajolet at tdf dot fr
I retried on another machine, with an older linux installation -> No
memory leak.
The problem appears on an RH9 (glibc-2.3.2)
But not on Mandrake 8.1 (glibc-2.2.4)
Trying to update the RH9 glibc (an update exists).
------------------------------------------------------------------------
[2005-03-09 16:16:49] antoine dot bajolet at tdf dot fr
Description:
------------
It seems that there is a memory leak in fopen wrappers to HTTP.
With a minimal compilation of PHP :
./configure --disable-all --enable-sockets --without-pear
--enable-memory-limit --without-pcre-regex --without-mysql
And the first code above, the memory used increased continuously.
(the -n flag is used to ignore any php.ini script. All parameters are
default).
#sapi/cli/php -n script1.php
12160
13536
13672
13736
13800
13864
13928
13992
14056
14120
14184
... still increasing
With a classic fopen, works fine
#sapi/cli/php -n script2.php
12128
12320
12336
12336
12336
12336
12336
12336
12336
12336
12336
... still stable
This is very annoying because we are writing a small php daemon using
periodics requests on HTTP hosts.
For more infos :
#ldd sapi/cli/php
libcrypt.so.1 => /lib/libcrypt.so.1 (0x4001b000)
libresolv.so.2 => /lib/libresolv.so.2 (0x40049000)
libm.so.6 => /lib/i686/libm.so.6 (0x4005b000)
libdl.so.2 => /lib/libdl.so.2 (0x4007d000)
libnsl.so.1 => /lib/libnsl.so.1 (0x40081000)
libc.so.6 => /lib/i686/libc.so.6 (0x40096000)
/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
/lib/libcrypt.so.1 -> libcrypt-2.3.2.so
/lib/libresolv.so.2 -> libresolv-2.3.2.so
Regards
Antoine Bajolet
Reproduce code:
---------------
With this, memory problem :
<?php
/* script1.php */
while(true){
echo memory_get_usage()."\n";
$handler = fopen('http://some.thing/','r');
fclose($handler);
sleep(2);
} // while
?>
With this, no memory problem
<?php
/* script2.php */
while(true){
echo memory_get_usage()."\n";
$handler = fopen('/etc/hosts','r');
fclose($handler);
sleep(2);
} // while
?>
Expected result:
----------------
The memory used has to be stable, not increasing.
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=32255&edit=1
