[Vserver] vserver + Zend php + oracle

Hello list,

We are using the Zend php distribution, with Oracle support
(ZendCoreForOracle-v1.3.1), inside a vserver. The Oracle server is on another
machine.

The vserver works fine, we can connect to Oracle. But after some time, we are
unable to make new connections. I can't reproduce the bug on demand, but we
are facing it from time to time (once every 1 to 3 weeks, http server with a
light load).

A vserver restart is not sufficient : we have to reboot the *host* to make it
works again. I suspect that even a bug in php or oracle shouldn't get us to
this situation. Or am I wrong ? Do you have any experience of this ? Can it
be a bug in the vserver patch or in the kernel ?

Linux 2.6.16.16
VServer vs2.0.2-rc20

Doing "strace /usr/local/Zend/Core/bin/php connect.php" (a simple test
script) :

[...]
lstat64("/root/connect.php", {st_mode=S_IFREG|0644, st_size=428, ...}) = 0
setitimer(ITIMER_PROF, {it_interval={0, 0}, it_value={0, 0}}, NULL) = 0
rt_sigaction(SIGPROF, {0x815a660, [PROF], SA_RESTART}, {0x815a660, [PROF],
SA_RESTART}, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [PROF], NULL, 8) = 0
_llseek(4, 0, [0], SEEK_SET) = 0
read(4, "<?php\n\n#CONNECT web/SPOOLWEB@164"..., 4096) = 428
_llseek(4, 428, [428], SEEK_SET) = 0
ioctl(4, SNDCTL_TMR_TIMEBASE or TCGETS, 0xbf975a78) = -1 ENOTTY (Inappropriate
ioctl for device)
read(4, "", 4096) = 0
read(4, "", 8192) = 0
close(4) = 0
munmap(0xb7f64000, 4096) = 0
mmap2(NULL, 143360, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0xb6405000
open("/usr/local/Zend/Core/lib/libociei.so", O_RDONLY) = 4
read(4, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0P&\0\000"..., 512) =
512
fstat64(4, {st_mode=S_IFREG|0777, st_size=70637812, ...}) = 0
old_mmap(NULL, 70638612, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0)
= 0xb20a7000
old_mmap(0xb6403000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|
MAP_DENYWRITE, 4, 0x435b000) = 0xb6403000
close(4) = 0
mprotect(0xb20a7000, 70631424, PROT_READ|PROT_WRITE) = 0
mprotect(0xb20a7000, 70631424, PROT_READ|PROT_EXEC) = 0
time(NULL) = 1152259134
gettimeofday({1152259134, 27036}, NULL) = 0
times(NULL) = -2123886524
times(NULL) = -2123886524
times(NULL) = -2123886524
times(NULL) = -2123886524

ant it goes on like this.

*Any* help would be very appreciated :-)

I will try to update Zend + Linux + vserver next week, but the bug also
occured with 2.6.16 + vs2.1.1rc14

-- 
Xavier Montagutelli                      Tel : +33 (0)5 55 45 77 20
Service Commun Informatique              Fax : +33 (0)5 55 45 75 95
Universite de Limoges
123, avenue Albert Thomas
87060 Limoges cedex
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