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[Xen-bugs] [Bug 1296] New: apache/php/ubuntu/nfs problems with xen 3.2.1

To: xen-bugs@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-bugs] [Bug 1296] New: apache/php/ubuntu/nfs problems with xen 3.2.1-rc1-pre
From: bugzilla-daemon@xxxxxxxxxxxxxxxxxxx
Date: Fri, 18 Jul 2008 00:03:08 -0700
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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1296

           Summary: apache/php/ubuntu/nfs problems with xen 3.2.1-rc1-pre
           Product: Xen
           Version: unstable
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Guest-OS
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: ljubisa@xxxxxxxxxxxxxxx


Hi,

I am running apache:
Server version: Apache/2.2.8 (Ubuntu)
Server built:   Jun 25 2008 13:54:13

with php:
PHP 5.2.4-2ubuntu5.2 with Suhosin-Patch 0.9.6.2 (cli) (built: Jul  3 2008
16:46:01)
Copyright (c) 1997-2007 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2007 Zend Technologies

on ubuntu 8.04

Web site hosted on this VM has heavy load. Problem is that apache after some
time stop responding and i have this in dmesg:

NFS is used for accessing web site files.

Jul 17 18:27:20 vm3 kernel: [21137.824168] Pid: 6758, comm: apache2 Not tainted
(2.6.24-19-xen #1)
Jul 17 18:27:20 vm3 kernel: [21137.824171] EIP: 0061:[<c032775a>] EFLAGS:
00200286 CPU: 0
Jul 17 18:27:20 vm3 kernel: [21137.824179] EIP is at _spin_lock+0xa/0x10
Jul 17 18:27:20 vm3 kernel: [21137.824182] EAX: c1cd0a0c EBX: 00000000 ECX:
c1cd0a00 EDX: 000007a8
Jul 17 18:27:20 vm3 kernel: [21137.824185] ESI: 034ef067 EDI: 00000001 EBP:
c0477158 ESP: c78e1ddc
Jul 17 18:27:20 vm3 kernel: [21137.824187]  DS: 007b ES: 007b FS: 00d8 GS: 0033
SS: 0069
Jul 17 18:27:20 vm3 kernel: [21137.824193] CR0: 80050033 CR2: b68f5014 CR3:
2aafb000 CR4: 00002660
Jul 17 18:27:21 vm3 kernel: [21137.824197] DR0: 00000000 DR1: 00000000 DR2:
00000000 DR3: 00000000
Jul 17 18:27:21 vm3 kernel: [21137.824201] DR6: ffff0ff0 DR7: 00000400
Jul 17 18:27:21 vm3 kernel: [21137.824204]  [<c016bd18>] __do_fault+0x3b8/0x6b0
Jul 17 18:27:21 vm3 kernel: [21137.824217]  [<c0170c69>]
handle_mm_fault+0x249/0x1350
Jul 17 18:27:21 vm3 kernel: [21137.824225]  [<c02a7860>]
sock_aio_read+0x120/0x130
Jul 17 18:27:21 vm3 kernel: [21137.824235]  [<c03292f6>]
do_page_fault+0x366/0xe90
Jul 17 18:27:21 vm3 kernel: [21137.824240]  [<c0199497>]
destroy_inode+0x27/0x40
Jul 17 18:27:21 vm3 kernel: [21137.824246]  [<c0185330>] do_sync_read+0x0/0x120
Jul 17 18:27:21 vm3 kernel: [21137.824251]  [<c0185d57>] vfs_read+0xb7/0x170
Jul 17 18:27:21 vm3 kernel: [21137.824254]  [<c019ba43>]
mntput_no_expire+0x13/0x70
Jul 17 18:27:21 vm3 kernel: [21137.824261]  [<c01862b1>] sys_read+0x41/0x70
Jul 17 18:27:21 vm3 kernel: [21137.824265]  [<c0328f90>]
do_page_fault+0x0/0xe90
Jul 17 18:27:21 vm3 kernel: [21137.824269]  [<c0327c35>] error_code+0x35/0x40
Jul 17 18:27:21 vm3 kernel: [21137.824275]  =======================

Name                                        ID   Mem VCPUs      State   Time(s)
vm3.vmhost.bvcom.net                         6  3078     6     -b----   5075.9

host                   : vmhost-1
release                : 2.6.24-19-xen
version                : #1 SMP Sat Jul 12 03:55:08 UTC 2008
machine                : i686
nr_cpus                : 8
nr_nodes               : 1
cores_per_socket       : 4
threads_per_core       : 1
cpu_mhz                : 1595
hw_caps                :
bfebfbff:20100000:00000000:00000140:0004e33d:00000000:00000001
total_memory           : 8191
free_memory            : 510
max_free_memory        : 4235
max_para_memory        : 4231
max_hvm_memory         : 4213
node_to_cpu            : node0:0-7
xen_major              : 3
xen_minor              : 2
xen_extra              : .1-rc1-pre
xen_caps               : xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xf5800000
xen_changeset          : unavailable
cc_compiler            : gcc version 4.2.3 (Ubuntu 4.2.3-2ubuntu7)
cc_compile_by          : buildd
cc_compile_domain      : buildd
cc_compile_date        : Fri Apr 11 01:12:53 UTC 2008
xend_config_format     : 4

(XEN) Xen version 3.2.1-rc1-pre (buildd@buildd) (gcc version 4.2.3 (Ubuntu
4.2.3-2ubuntu7)) Fri Apr 11 01:12:53 UTC 2008

This site works fine on same apache/php/ubuntu combination on server without
xen without any problems.

Any ideas?

Best regards,
Ljubisa


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