From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bruce Edge Subject: Re: Re: xenstored unsafe lock order detected, xlate_proc_name, evtchn_ioctl, port_user_lock Date: Thu, 26 Aug 2010 11:05:52 -0700 Message-ID: References: <20100606173355.GS17817@reaktio.net> <4C0BDDB0.3000501@goop.org> <20100606185401.GT17817@reaktio.net> <20100607125803.GD17817@reaktio.net> <4C0D2345.8000200@goop.org> <20100720115350.GW17817@reaktio.net> <4C45CC16.6060409@goop.org> <20100720171736.GK17817@reaktio.net> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1244037627==" Return-path: In-Reply-To: <20100720171736.GK17817@reaktio.net> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: =?ISO-8859-1?Q?Pasi_K=E4rkk=E4inen?= Cc: Jeremy Fitzhardinge , xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org --===============1244037627== Content-Type: multipart/alternative; boundary=0016e65ae5a04d10c8048ebdd936 --0016e65ae5a04d10c8048ebdd936 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On Tue, Jul 20, 2010 at 10:17 AM, Pasi K=E4rkk=E4inen wrote: > On Tue, Jul 20, 2010 at 09:17:26AM -0700, Jeremy Fitzhardinge wrote: > > On 07/20/2010 04:53 AM, Pasi K=E4rkk=E4inen wrote: > > > On Mon, Jun 07, 2010 at 09:50:13AM -0700, Jeremy Fitzhardinge wrote: > > > > > >> On 06/07/2010 05:58 AM, Pasi K=E4rkk=E4inen wrote: > > >> > > >>> On Sun, Jun 06, 2010 at 09:54:01PM +0300, Pasi K=E4rkk=E4inen wrote= : > > >>> > > >>> > > >>>> On Sun, Jun 06, 2010 at 10:41:04AM -0700, Jeremy Fitzhardinge wrot= e: > > >>>> > > >>>> > > >>>>> On 06/06/2010 10:33 AM, Pasi K=E4rkk=E4inen wrote: > > >>>>> > > >>>>> > > >>>>>> Hello, > > >>>>>> > > >>>>>> I just tried the latest xen/stable-2.6.32.x kernel, ie. 2.6.32.1= 5, > with Xen 4.0.0, > > >>>>>> and I got this: > > >>>>>> > > >>>>>> > http://pasik.reaktio.net/xen/pv_ops-dom0-debug/log-2.6.32.15-pvops-dom0-x= en-stable-x86_64.txt > > >>>>>> > > >>>>>> > > >>>>>> > > >>>>> Does this help? > > >>>>> > > >>>>> > > >>>>> > > >>>> It gave failing hunks so I had to manually apply it to 2.6.32.15, > > >>>> but it seems to fix that issue. No "unsafe lock order" messages > anymore. > > >>>> > > >>>> > > >>>> > > >>> Hmm.. it seems I still get this: > > >>> > > >>> > > >> OK, thanks. Let me look at it; that was a first cut patch I did the > > >> other day when I noticed the problem, but I hadn't got around to > testing > > >> it myself. > > >> > > >> > > > I just tried the latest xen/stable-2.6.32.16 (as of today), > > > without any additional patches, and I get this: > > > > > > > Is that new? > > > > I think it's the same as earlier.. > > -- Pasi > > > > > > > > > device vif1.0 entered promiscuous mode > > > virbr0: topology change detected, propagating > > > virbr0: port 1(vif1.0) entering forwarding state > > > alloc irq_desc for 1242 on node 0 > > > alloc kstat_irqs on node 0 > > > alloc irq_desc for 1241 on node 0 > > > alloc kstat_irqs on node 0 > > > alloc irq_desc for 1240 on node 0 > > > alloc kstat_irqs on node 0 > > > blkback: ring-ref 8, event-channel 8, protocol 1 (x86_64-abi) > > > alloc irq_desc for 1239 on node 0 > > > alloc kstat_irqs on node 0 > > > vif1.0: no IPv6 routers present > > > alloc irq_desc for 1238 on node 0 > > > alloc kstat_irqs on node 0 > > > ------------[ cut here ]------------ > > > WARNING: at kernel/lockdep.c:2323 trace_hardirqs_on_caller+0xb7/0x135= () > > > Hardware name: X7SB4/E > > > Modules linked in: ipt_MASQUERADE iptable_nat nf_nat bridge stp llc > sunrpc ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 > xen_gntdev xen_evtchn xenfs e1000e shpchp i2c_i801 pcspkr iTCO_wdt > iTCO_vendor_support serio_raw joydev floppy usb_storage video output aic7= 9xx > scsi_transport_spi radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core [l= ast > unloaded: scsi_wait_scan] > > > Pid: 23, comm: xenwatch Not tainted 2.6.32.16 #6 > > > Call Trace: > > > [] warn_slowpath_common+0x7c/0x94 > > > [] ? _spin_unlock_irq+0x30/0x3c > > > [] warn_slowpath_null+0x14/0x16 > > > [] trace_hardirqs_on_caller+0xb7/0x135 > > > [] trace_hardirqs_on+0xd/0xf > > > [] _spin_unlock_irq+0x30/0x3c > > > [] add_to_net_schedule_list_tail+0x92/0x9b > > > [] netif_be_int+0x38/0xcd > > > [] handle_IRQ_event+0x53/0x119 > > > [] handle_level_irq+0x7d/0xdf > > > [] __xen_evtchn_do_upcall+0xe1/0x16e > > > [] xen_evtchn_do_upcall+0x37/0x4c > > > [] xen_do_hypervisor_callback+0x1e/0x30 > > > [] ? hypercall_page+0x40a/0x100b > > > [] ? hypercall_page+0x40a/0x100b > > > [] ? notify_remote_via_evtchn+0x1e/0x44 > > > [] ? __mutex_lock_common+0x36a/0x37b > > > [] ? xs_talkv+0x5c/0x174 > > > [] ? xb_write+0x16e/0x18a > > > [] ? xs_talkv+0x6a/0x174 > > > [] ? kasprintf+0x38/0x3a > > > [] ? xs_single+0x3a/0x3c > > > [] ? xenbus_read+0x42/0x5b > > > [] ? frontend_changed+0x655/0x681 > > > [] ? xenbus_otherend_changed+0xe9/0x176 > > > [] ? xen_restore_fl_direct_end+0x0/0x1 > > > [] ? lock_release+0x198/0x1a5 > > > [] ? frontend_changed+0x10/0x12 > > > [] ? xenwatch_thread+0x111/0x14c > > > [] ? autoremove_wake_function+0x0/0x39 > > > [] ? xenwatch_thread+0x0/0x14c > > > [] ? kthread+0x7f/0x87 > > > [] ? child_rip+0xa/0x20 > > > [] ? restore_args+0x0/0x30 > > > [] ? child_rip+0x0/0x20 > > > ---[ end trace b036c0423b0ee26a ]--- > > > alloc irq_desc for 1237 on node 0 > > > alloc kstat_irqs on node 0 > > > device vif2.0 entered promiscuous mode > > > > > > > > > -- Pasi > > > > > > > > > > I'm also seeing this with the newly released xen 4.0.1 and a Not tainted 2.6.32.18 pvops sync'd yesterday: 2010-08-26T10:57:12.085252-07:00 kaan-18 [ 4698.128356] blkback: ring-ref 8= , event-channel 93, protocol 1 (x86_64-abi) 2010-08-26T10:57:12.126039-07:00 kaan-18 [ 4698.168555] ------------[ cut here ]------------ 2010-08-26T10:57:12.126141-07:00 kaan-18 [ 4698.168569] WARNING: at kernel/lockdep.c:2323 trace_hardirqs_on_caller+0x12f/0x190() 2010-08-26T10:57:12.126220-07:00 kaan-18 [ 4698.168574] Hardware name: ProLiant DL380 G6 2010-08-26T10:57:12.126297-07:00 kaan-18 [ 4698.168578] Modules linked in: xt_physdev xenfs xen_gntdev xen_evtchn ipv6 xen_pciback t2010-08-26T10:57:12.126297-07:00 kaan-18 [ 4698.168578] Modules linked in: xt_physdev xenfs xen_gntdev xen_evtchn ipv6 xen_pciback t un fbcon tileblit font bitblit softcursor bridge stp llc radeon ttm drm_kms_helper lp drm i2c_algo_bit ipmi_si joydev i2c_core ipmi_msghandler hpilo hpwdt parport serio_raw usbhid hid cciss usb_storage 2010-08-26T10:57:12.126405-07:00 kaan-18 [ 4698.168644] Pid: 11, comm: xenwatch Not tainted 2.6.32.18 #1 2010-08-26T10:57:12.126482-07:00 kaan-18 [ 4698.168648] Call Trace: 2010-08-26T10:57:12.126559-07:00 kaan-18 [ 4698.168651] [] ? trace_hardirqs_on_caller+0x12f/0x190 2010-08-26T10:57:12.126655-07:00 kaan-18 [ 4698.168663] [] warn_slowpath_common+0x80/0xd0 2010-08-26T10:57:12.126731-07:00 kaan-18 [ 4698.168671] [] ? _spin_unlock_irq+0x30/0x40 2010-08-26T10:57:12.126806-07:00 kaan-18 [ 4698.168676] [] warn_slowpath_null+0x14/0x20 2010-08-26T10:57:12.126881-07:00 kaan-18 [ 4698.168682] [] trace_hardirqs_on_caller+0x12f/0x190 2010-08-26T10:57:12.126957-07:00 kaan-18 [ 4698.168688] [] trace_hardirqs_on+0xd/0x10 2010-08-26T10:57:12.127034-07:00 kaan-18 [ 4698.168693] [] _spin_unlock_irq+0x30/0x40 2010-08-26T10:57:12.127110-07:00 kaan-18 [ 4698.168700] [] add_to_net_schedule_list_tail+0x85/0xd0 2010-08-26T10:57:12.127186-07:00 kaan-18 [ 4698.168724] [] netif_be_int+0x36/0x160 2010-08-26T10:57:12.127263-07:00 kaan-18 [ 4698.168730] [] handle_IRQ_event+0x70/0x180 2010-08-26T10:57:12.127338-07:00 kaan-18 [ 4698.168736] [] handle_level_irq+0x99/0x140 2010-08-26T10:57:12.127433-07:00 kaan-18 [ 4698.168742] [] __xen_evtchn_do_upcall+0x1bf/0x1f0 2010-08-26T10:57:12.127509-07:00 kaan-18 [ 4698.168747] [] xen_evtchn_do_upcall+0x3d/0x60 2010-08-26T10:57:12.127577-07:00 kaan-18 [ 4698.168754] [] xen_do_hypervisor_callback+0x1e/0x30 2010-08-26T10:57:12.127584-07:00 kaan-18 [ 4698.168758] [] ? hypercall_page+0x40a/0x1010 2010-08-26T10:57:12.127589-07:00 kaan-18 [ 4698.168769] [] ? hypercall_page+0x40a/0x1010 2010-08-26T10:57:12.127595-07:00 kaan-18 [ 4698.168775] [] ? xb_write+0x1e4/0x290 2010-08-26T10:57:12.127650-07:00 kaan-18 [ 4698.168780] [] ? xs_talkv+0x6a/0x1f0 2010-08-26T10:57:12.127657-07:00 kaan-18 [ 4698.168785] [] ? xs_talkv+0x78/0x1f0 2010-08-26T10:57:12.127662-07:00 kaan-18 [ 4698.168790] [] ? xs_single+0x4d/0x60 2010-08-26T10:57:12.127667-07:00 kaan-18 [ 4698.168795] [] ? xenbus_read+0x52/0x80 2010-08-26T10:57:12.127673-07:00 kaan-18 [ 4698.168800] [] ? frontend_changed+0x48c/0x770 2010-08-26T10:57:12.127678-07:00 kaan-18 [ 4698.168806] [] ? xenbus_otherend_changed+0xdd/0x1b0 2010-08-26T10:57:12.127684-07:00 kaan-18 [ 4698.168813] [] ? xen_restore_fl_direct_end+0x0/0x1 2010-08-26T10:57:12.127689-07:00 kaan-18 [ 4698.168818] [] ? lock_release+0xb0/0x230 2010-08-26T10:57:12.127770-07:00 kaan-18 [ 4698.168823] [] ? frontend_changed+0x10/0x20 2010-08-26T10:57:12.127777-07:00 kaan-18 [ 4698.168829] [] ? xenwatch_thread+0x55/0x160 2010-08-26T10:57:12.127782-07:00 kaan-18 [ 4698.168836] [] ? autoremove_wake_function+0x0/0x40 2010-08-26T10:57:12.127788-07:00 kaan-18 [ 4698.168841] [] ? xenwatch_thread+0x0/0x160 2010-08-26T10:57:12.127793-07:00 kaan-18 [ 4698.168847] [] ? kthread+0x96/0xb0 2010-08-26T10:57:12.127799-07:00 kaan-18 [ 4698.168852] [] ? child_rip+0xa/0x20 2010-08-26T10:57:12.127804-07:00 kaan-18 [ 4698.168856] [] ? restore_args+0x0/0x30 2010-08-26T10:57:12.137042-07:00 kaan-18 [ 4698.168861] [] ? child_rip+0x0/0x20 2010-08-26T10:57:12.137052-07:00 kaan-18 [ 4698.168865] ---[ end trace d11f63be69302ffc ]--- 2010-08-26T10:57:18.775160-07:00 kaan-18 [ 4704.813405] vif3.0: no IPv6 routers present 'cpu/8/availability': 'online', 'cpu/9/availability': 'online', 'image/suspend-cancel': '1', 'cpu/5/availability': 'online', 'cpu/0/availability': 'online', 'image/features/pae-pgdir-above-4gb': '1', 'cpu/6/availability': 'online', 'console/type': 'xenconsoled', 'cpu/12/availability': 'online', 'name': 'dpm', 'cpu/2/availability': 'online', 'domid': '3', 'image/xen-version': 'xen-3.0', 'store/port': '1', 'cpu/10/availability': 'online'} [2010-08-26 10:57:09 1840] DEBUG (DevController:95) DevController: writing {'protocol': 'x86_64-abi', 'state': '1', 'backend-id': '0', 'backend': '/local/domain/0/backend/console/3/0'} to /local/domain/3/device/console/0. [2010-08-26 10:57:09 1840] DEBUG (DevController:97) DevController: writing {'domain': 'dpm', 'frontend': '/local/domain/3/device/console/0', 'uuid': '460962e0-bc9b-f7de-b5f4-70715fb5d614', 'frontend-id': '3', 'state': '1', 'location': '2', 'online': '1', 'protocol': 'vt100'} to /local/domain/0/backend/console/3/0. [2010-08-26 10:57:09 1840] DEBUG (pciif:460) XendDomainInfo.handleAerStateWatch [2010-08-26 10:57:09 1840] DEBUG (XendDomainInfo:1891) XendDomainInfo.handleShutdownWatch [2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devices tap2. [2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devices vif. [2010-08-26 10:57:09 1840] DEBUG (DevController:144) Waiting for 0. [2010-08-26 10:57:09 1840] DEBUG (DevController:628) hotplugStatusCallback /local/domain/0/backend/vif/3/0/hotplug-status. [2010-08-26 10:57:09 1840] DEBUG (DevController:642) hotplugStatusCallback 1. [2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devices vkbd. [2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devices ioports. [2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devices tap. [2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devices vif2. [2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devices console. [2010-08-26 10:57:09 1840] DEBUG (DevController:144) Waiting for 0. [2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devices vscsi. [2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devices vbd. [2010-08-26 10:57:09 1840] DEBUG (DevController:144) Waiting for 51712. [2010-08-26 10:57:09 1840] DEBUG (DevController:628) hotplugStatusCallback /local/domain/0/backend/vbd/3/51712/hotplug-status. [2010-08-26 10:57:09 1840] DEBUG (DevController:642) hotplugStatusCallback 1. [2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devices irq. [2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devices vfb. [2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devices pci. [2010-08-26 10:57:09 1840] DEBUG (DevController:144) Waiting for 0. [2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devices vusb. [2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devices vtpm. [2010-08-26 10:57:09 1840] INFO (XendDomain:1206) Domain dpm (3) unpaused. =3D=3D> kern.log <=3D=3D 2010-08-26T10:57:12.085252-07:00 kaan-18 [ 4698.128356] blkback: ring-ref 8= , event-channel 93, protocol 1 (x86_64-abi) 2010-08-26T10:57:12.126039-07:00 kaan-18 [ 4698.168555] ------------[ cut here ]------------ 2010-08-26T10:57:12.126141-07:00 kaan-18 [ 4698.168569] WARNING: at kernel/lockdep.c:2323 trace_hardirqs_on_caller+0x12f/0x190() 2010-08-26T10:57:12.126220-07:00 kaan-18 [ 4698.168574] Hardware name: ProLiant DL380 G6 2010-08-26T10:57:12.126297-07:00 kaan-18 [ 4698.168578] Modules linked in: xt_physdev xenfs xen_gntdev xen_evtchn ipv6 xen_pciback tun fbcon tileblit font bitblit softcursor bridge stp llc radeon ttm drm_kms_helper lp drm i2c_algo_bit ipmi_si joydev i2c_core ipmi_msghandler hpilo hpwdt parport serio_raw usbhid hid cciss usb_storage 2010-08-26T10:57:12.126405-07:00 kaan-18 [ 4698.168644] Pid: 11, comm: xenwatch Not tainted 2.6.32.18 #1 2010-08-26T10:57:12.126482-07:00 kaan-18 [ 4698.168648] Call Trace: 2010-08-26T10:57:12.126559-07:00 kaan-18 [ 4698.168651] [] ? trace_hardirqs_on_caller+0x12f/0x190 2010-08-26T10:57:12.126655-07:00 kaan-18 [ 4698.168663] [] warn_slowpath_common+0x80/0xd0 2010-08-26T10:57:12.126731-07:00 kaan-18 [ 4698.168671] [] ? _spin_unlock_irq+0x30/0x40 2010-08-26T10:57:12.126806-07:00 kaan-18 [ 4698.168676] [] warn_slowpath_null+0x14/0x20 2010-08-26T10:57:12.126881-07:00 kaan-18 [ 4698.168682] [] trace_hardirqs_on_caller+0x12f/0x190 2010-08-26T10:57:12.126957-07:00 kaan-18 [ 4698.168688] [] trace_hardirqs_on+0xd/0x10 2010-08-26T10:57:12.127034-07:00 kaan-18 [ 4698.168693] [] _spin_unlock_irq+0x30/0x40 2010-08-26T10:57:12.127110-07:00 kaan-18 [ 4698.168700] [] add_to_net_schedule_list_tail+0x85/0xd0 2010-08-26T10:57:12.127186-07:00 kaan-18 [ 4698.168724] [] netif_be_int+0x36/0x160 2010-08-26T10:57:12.127263-07:00 kaan-18 [ 4698.168730] [] handle_IRQ_event+0x70/0x180 2010-08-26T10:57:12.127338-07:00 kaan-18 [ 4698.168736] [] handle_level_irq+0x99/0x140 2010-08-26T10:57:12.127433-07:00 kaan-18 [ 4698.168742] [] __xen_evtchn_do_upcall+0x1bf/0x1f0 2010-08-26T10:57:12.127509-07:00 kaan-18 [ 4698.168747] [] xen_evtchn_do_upcall+0x3d/0x60 2010-08-26T10:57:12.127577-07:00 kaan-18 [ 4698.168754] [] xen_do_hypervisor_callback+0x1e/0x30 2010-08-26T10:57:12.127584-07:00 kaan-18 [ 4698.168758] [] ? hypercall_page+0x40a/0x1010 2010-08-26T10:57:12.127589-07:00 kaan-18 [ 4698.168769] [] ? hypercall_page+0x40a/0x1010 2010-08-26T10:57:12.127595-07:00 kaan-18 [ 4698.168775] [] ? xb_write+0x1e4/0x290 2010-08-26T10:57:12.127650-07:00 kaan-18 [ 4698.168780] [] ? xs_talkv+0x6a/0x1f0 2010-08-26T10:57:12.127657-07:00 kaan-18 [ 4698.168785] [] ? xs_talkv+0x78/0x1f0 2010-08-26T10:57:12.127662-07:00 kaan-18 [ 4698.168790] [] ? xs_single+0x4d/0x60 2010-08-26T10:57:12.127667-07:00 kaan-18 [ 4698.168795] [] ? xenbus_read+0x52/0x80 2010-08-26T10:57:12.127673-07:00 kaan-18 [ 4698.168800] [] ? frontend_changed+0x48c/0x770 2010-08-26T10:57:12.127678-07:00 kaan-18 [ 4698.168806] [] ? xenbus_otherend_changed+0xdd/0x1b0 2010-08-26T10:57:12.127684-07:00 kaan-18 [ 4698.168813] [] ? xen_restore_fl_direct_end+0x0/0x1 2010-08-26T10:57:12.127689-07:00 kaan-18 [ 4698.168818] [] ? lock_release+0xb0/0x230 2010-08-26T10:57:12.127770-07:00 kaan-18 [ 4698.168823] [] ? frontend_changed+0x10/0x20 2010-08-26T10:57:12.127777-07:00 kaan-18 [ 4698.168829] [] ? xenwatch_thread+0x55/0x160 2010-08-26T10:57:12.127782-07:00 kaan-18 [ 4698.168836] [] ? autoremove_wake_function+0x0/0x40 2010-08-26T10:57:12.127788-07:00 kaan-18 [ 4698.168841] [] ? xenwatch_thread+0x0/0x160 2010-08-26T10:57:12.127793-07:00 kaan-18 [ 4698.168847] [] ? kthread+0x96/0xb0 2010-08-26T10:57:12.127799-07:00 kaan-18 [ 4698.168852] [] ? child_rip+0xa/0x20 2010-08-26T10:57:12.127804-07:00 kaan-18 [ 4698.168856] [] ? restore_args+0x0/0x30 2010-08-26T10:57:12.137042-07:00 kaan-18 [ 4698.168861] [] ? child_rip+0x0/0x20 2010-08-26T10:57:12.137052-07:00 kaan-18 [ 4698.168865] ---[ end trace d11f63be69302ffc ]--- 2010-08-26T10:57:18.775160-07:00 kaan-18 [ 4704.813405] vif3.0: no IPv6 routers present Possibly related, or not, domU is running of memory: boot looks normal until here: [ 0.659086] udev: starting version 151 [ 0.783917] Initialising Xen virtual ethernet driver. [ 0.805892] blkfront: xvda: barriers enabled [ 0.807202] xvda: xvda1 xvda2 < xvda5 > [ 1.048985] EXT4-fs (xvda1): mounted filesystem with ordered data mode [ 9.025260] Out of memory: kill process 633 (init) score 898 or a child [ 9.025413] Killed process 633 (init) [ 9.344581] Out of memory: kill process 534 (rsyslogd) score 428 or a child [ 9.344740] Killed process 629 (rsyslogd) [ 9.657456] Out of memory: kill process 424 (mountall) score 405 or a child [ 9.657613] Killed process 424 (mountall) -Bruce --0016e65ae5a04d10c8048ebdd936 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
On Tue, Jul 20, 2010 at 10:17 AM, Pasi K=E4rkk= =E4inen <pasik@iki.fi<= /a>> wrote:
On Tue, Jul 20, 2010 at 09:17:26AM -0700, Jeremy Fitzhard= inge wrote:
> On 07/20/2010 04:53 AM, Pasi K=E4rkk=E4inen wrote:
> > On Mon, Jun 07, 2010 at 09:50:13AM -0700, Jeremy Fitzhardinge wro= te:
> >
> >> On 06/07/2010 05:58 AM, Pasi K=E4rkk=E4inen wrote:
> >>
> >>> On Sun, Jun 06, 2010 at 09:54:01PM +0300, Pasi K=E4rkk=E4= inen wrote:
> >>>
> >>>
> >>>> On Sun, Jun 06, 2010 at 10:41:04AM -0700, Jeremy Fitz= hardinge wrote:
> >>>>
> >>>>
> >>>>> On 06/06/2010 10:33 AM, Pasi K=E4rkk=E4inen wrote= :
> >>>>>
> >>>>>
> >>>>>> Hello,
> >>>>>>
> >>>>>> I just tried the latest xen/stable-2.6.32.x k= ernel, ie. 2.6.32.15, with Xen 4.0.0,
> >>>>>> and I got this:
> >>>>>>
> >>>>>> http://pasik.reaktio.net/xen/pv_ops-dom0-debug/log-2.6.32.15-pvops-dom0= -xen-stable-x86_64.txt
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>> Does this help?
> >>>>>
> >>>>>
> >>>>>
> >>>> It gave failing hunks so I had to manually apply it t= o 2.6.32.15,
> >>>> but it seems to fix that issue. No "unsafe lock = order" messages anymore.
> >>>>
> >>>>
> >>>>
> >>> Hmm.. it seems I still get this:
> >>>
> >>>
> >> OK, thanks. =A0Let me look at it; that was a first cut patch = I did the
> >> other day when I noticed the problem, but I hadn't got ar= ound to testing
> >> it myself.
> >>
> >>
> > I just tried the latest xen/stable-2.6.32.16 (as of today),
> > without any additional patches, and I get this:
> >
>
> Is that new?
>

I think it's the same as earlier..

-- Pasi

>
> >
> > device vif1.0 entered promiscuous mode
> > virbr0: topology change detected, propagating
> > virbr0: port 1(vif1.0) entering forwarding state
> > =A0 alloc irq_desc for 1242 on node 0
> > =A0 alloc kstat_irqs on node 0
> > =A0 alloc irq_desc for 1241 on node 0
> > =A0 alloc kstat_irqs on node 0
> > =A0 alloc irq_desc for 1240 on node 0
> > =A0 alloc kstat_irqs on node 0
> > blkback: ring-ref 8, event-channel 8, protocol 1 (x86_64-abi)
> > =A0 alloc irq_desc for 1239 on node 0
> > =A0 alloc kstat_irqs on node 0
> > vif1.0: no IPv6 routers present
> > =A0 alloc irq_desc for 1238 on node 0
> > =A0 alloc kstat_irqs on node 0
> > ------------[ cut here ]------------
> > WARNING: at kernel/lockdep.c:2323 trace_hardirqs_on_caller+0xb7/0= x135()
> > Hardware name: X7SB4/E
> > Modules linked in: ipt_MASQUERADE iptable_nat nf_nat bridge stp l= lc sunrpc ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 xen= _gntdev xen_evtchn xenfs e1000e shpchp i2c_i801 pcspkr iTCO_wdt iTCO_vendor= _support serio_raw joydev floppy usb_storage video output aic79xx scsi_tran= sport_spi radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core [last unloade= d: scsi_wait_scan]
> > Pid: 23, comm: xenwatch Not tainted 2.6.32.16 #6
> > Call Trace:
> > =A0<IRQ> =A0[<ffffffff81059c41>] warn_slowpath_common= +0x7c/0x94
> > =A0[<ffffffff8147896b>] ? _spin_unlock_irq+0x30/0x3c
> > =A0[<ffffffff81059c6d>] warn_slowpath_null+0x14/0x16
> > =A0[<ffffffff8108b186>] trace_hardirqs_on_caller+0xb7/0x135=
> > =A0[<ffffffff8108b211>] trace_hardirqs_on+0xd/0xf
> > =A0[<ffffffff8147896b>] _spin_unlock_irq+0x30/0x3c
> > =A0[<ffffffff812c15d7>] add_to_net_schedule_list_tail+0x92/= 0x9b
> > =A0[<ffffffff812c1618>] netif_be_int+0x38/0xcd
> > =A0[<ffffffff810b8144>] handle_IRQ_event+0x53/0x119
> > =A0[<ffffffff810ba0e6>] handle_level_irq+0x7d/0xdf
> > =A0[<ffffffff812b6f45>] __xen_evtchn_do_upcall+0xe1/0x16e > > =A0[<ffffffff812b74b8>] xen_evtchn_do_upcall+0x37/0x4c
> > =A0[<ffffffff81013f3e>] xen_do_hypervisor_callback+0x1e/0x3= 0
> > =A0<EOI> =A0[<ffffffff8100940a>] ? hypercall_page+0x4= 0a/0x100b
> > =A0[<ffffffff8100940a>] ? hypercall_page+0x40a/0x100b
> > =A0[<ffffffff812b9f9b>] ? notify_remote_via_evtchn+0x1e/0x4= 4
> > =A0[<ffffffff814776a1>] ? __mutex_lock_common+0x36a/0x37b > > =A0[<ffffffff812ba8b8>] ? xs_talkv+0x5c/0x174
> > =A0[<ffffffff812ba30c>] ? xb_write+0x16e/0x18a
> > =A0[<ffffffff812ba8c6>] ? xs_talkv+0x6a/0x174
> > =A0[<ffffffff81242b86>] ? kasprintf+0x38/0x3a
> > =A0[<ffffffff812bab15>] ? xs_single+0x3a/0x3c
> > =A0[<ffffffff812bb0f0>] ? xenbus_read+0x42/0x5b
> > =A0[<ffffffff812c3de4>] ? frontend_changed+0x655/0x681
> > =A0[<ffffffff812bc0e7>] ? xenbus_otherend_changed+0xe9/0x17= 6
> > =A0[<ffffffff8100f34f>] ? xen_restore_fl_direct_end+0x0/0x1=
> > =A0[<ffffffff8108d94e>] ? lock_release+0x198/0x1a5
> > =A0[<ffffffff812bc712>] ? frontend_changed+0x10/0x12
> > =A0[<ffffffff812ba63d>] ? xenwatch_thread+0x111/0x14c
> > =A0[<ffffffff81079d7a>] ? autoremove_wake_function+0x0/0x39=
> > =A0[<ffffffff812ba52c>] ? xenwatch_thread+0x0/0x14c
> > =A0[<ffffffff81079aa8>] ? kthread+0x7f/0x87
> > =A0[<ffffffff81013dea>] ? child_rip+0xa/0x20
> > =A0[<ffffffff81013750>] ? restore_args+0x0/0x30
> > =A0[<ffffffff81013de0>] ? child_rip+0x0/0x20
> > ---[ end trace b036c0423b0ee26a ]---
> > =A0 alloc irq_desc for 1237 on node 0
> > =A0 alloc kstat_irqs on node 0
> > device vif2.0 entered promiscuous mode
> >
> >
> > -- Pasi
> >
> >
>

=A0
I'm also seeing= this with the newly released xen 4.0.1 and a=A0=A0Not tainted 2.6.32.18 pv= ops sync'd yesterday:

2010-08-26T10:57:12= .085252-07:00 kaan-18 [ 4698.128356] blkback: ring-ref 8, event-channel 93,= protocol 1 (x86_64-abi)
2010-08-26T10:57:12.126039-07:00 kaan-18 [ 4698.168555] ------------[ = cut here ]------------
2010-08-26T10:57:12.126141-07:00 kaan-18 [= 4698.168569] WARNING: at kernel/lockdep.c:2323 trace_hardirqs_on_caller+0x= 12f/0x190()
2010-08-26T10:57:12.126220-07:00 kaan-18 [ 4698.168574] Hardware name:= ProLiant DL380 G6
2010-08-26T10:57:12.126297-07:00 kaan-18 [ 469= 8.168578] Modules linked in: xt_physdev xenfs xen_gntdev xen_evtchn ipv6 xe= n_pciback t2010-08-26T10:57:12.126297-07:00 kaan-18 [ 4698.168578] Modules = linked in: xt_physdev xenfs xen_gntdev xen_evtchn ipv6 xen_pciback t
un fbcon tileblit font bitblit softcursor bridge stp llc radeon ttm dr= m_kms_helper lp drm i2c_algo_bit ipmi_si joydev i2c_core ipmi_msghandler hp= ilo hpwdt parport serio_raw usbhid hid cciss usb_storage
2010-08-= 26T10:57:12.126405-07:00 kaan-18 [ 4698.168644] Pid: 11, comm: xenwatch Not= tainted 2.6.32.18 #1
2010-08-26T10:57:12.126482-07:00 kaan-18 [ 4698.168648] Call Trace:
2010-08-26T10:57:12.126559-07:00 kaan-18 [ 4698.168651] =A0<IRQ&= gt; =A0[<ffffffff810a9f7f>] ? trace_hardirqs_on_caller+0x12f/0x190
2010-08-26T10:57:12.126655-07:00 kaan-18 [ 4698.168663] =A0[<ffffff= ff8106bd60>] warn_slowpath_common+0x80/0xd0
2010-08-26T10:57:1= 2.126731-07:00 kaan-18 [ 4698.168671] =A0[<ffffffff815f3d70>] ? _spin= _unlock_irq+0x30/0x40
2010-08-26T10:57:12.126806-07:00 kaan-18 [ 4698.168676] =A0[<ffffff= ff8106bdc4>] warn_slowpath_null+0x14/0x20
2010-08-26T10:57:12.= 126881-07:00 kaan-18 [ 4698.168682] =A0[<ffffffff810a9f7f>] trace_har= dirqs_on_caller+0x12f/0x190
2010-08-26T10:57:12.126957-07:00 kaan-18 [ 4698.168688] =A0[<ffffff= ff810a9fed>] trace_hardirqs_on+0xd/0x10
2010-08-26T10:57:12.12= 7034-07:00 kaan-18 [ 4698.168693] =A0[<ffffffff815f3d70>] _spin_unloc= k_irq+0x30/0x40
2010-08-26T10:57:12.127110-07:00 kaan-18 [ 4698.168700] =A0[<ffffff= ff813c4e75>] add_to_net_schedule_list_tail+0x85/0xd0
2010-08-2= 6T10:57:12.127186-07:00 kaan-18 [ 4698.168724] =A0[<ffffffff813c60c6>= ] netif_be_int+0x36/0x160
2010-08-26T10:57:12.127263-07:00 kaan-18 [ 4698.168730] =A0[<ffffff= ff810e0ea0>] handle_IRQ_event+0x70/0x180
2010-08-26T10:57:12.1= 27338-07:00 kaan-18 [ 4698.168736] =A0[<ffffffff810e3c69>] handle_lev= el_irq+0x99/0x140
2010-08-26T10:57:12.127433-07:00 kaan-18 [ 4698.168742] =A0[<ffffff= ff813b8acf>] __xen_evtchn_do_upcall+0x1bf/0x1f0
2010-08-26T10:= 57:12.127509-07:00 kaan-18 [ 4698.168747] =A0[<ffffffff813b908d>] xen= _evtchn_do_upcall+0x3d/0x60
2010-08-26T10:57:12.127577-07:00 kaan-18 [ 4698.168754] =A0[<ffffff= ff8101647e>] xen_do_hypervisor_callback+0x1e/0x30
2010-08-26T1= 0:57:12.127584-07:00 kaan-18 [ 4698.168758] =A0<EOI> =A0[<ffffffff= 8100940a>] ? hypercall_page+0x40a/0x1010
2010-08-26T10:57:12.127589-07:00 kaan-18 [ 4698.168769] =A0[<ffffff= ff8100940a>] ? hypercall_page+0x40a/0x1010
2010-08-26T10:57:12= .127595-07:00 kaan-18 [ 4698.168775] =A0[<ffffffff813bcd04>] ? xb_wri= te+0x1e4/0x290
2010-08-26T10:57:12.127650-07:00 kaan-18 [ 4698.168780] =A0[<ffffff= ff813bd77a>] ? xs_talkv+0x6a/0x1f0
2010-08-26T10:57:12.127657-= 07:00 kaan-18 [ 4698.168785] =A0[<ffffffff813bd788>] ? xs_talkv+0x78/= 0x1f0
2010-08-26T10:57:12.127662-07:00 kaan-18 [ 4698.168790] =A0[<ffffff= ff813bda7d>] ? xs_single+0x4d/0x60
2010-08-26T10:57:12.127667-= 07:00 kaan-18 [ 4698.168795] =A0[<ffffffff813be3b2>] ? xenbus_read+0x= 52/0x80
2010-08-26T10:57:12.127673-07:00 kaan-18 [ 4698.168800] =A0[<ffffff= ff813c86ac>] ? frontend_changed+0x48c/0x770
2010-08-26T10:57:1= 2.127678-07:00 kaan-18 [ 4698.168806] =A0[<ffffffff813bf61d>] ? xenbu= s_otherend_changed+0xdd/0x1b0
2010-08-26T10:57:12.127684-07:00 kaan-18 [ 4698.168813] =A0[<ffffff= ff81010e3f>] ? xen_restore_fl_direct_end+0x0/0x1
2010-08-26T10= :57:12.127689-07:00 kaan-18 [ 4698.168818] =A0[<ffffffff810ac610>] ? = lock_release+0xb0/0x230
2010-08-26T10:57:12.127770-07:00 kaan-18 [ 4698.168823] =A0[<ffffff= ff813bf990>] ? frontend_changed+0x10/0x20
2010-08-26T10:57:12.= 127777-07:00 kaan-18 [ 4698.168829] =A0[<ffffffff813bd3a5>] ? xenwatc= h_thread+0x55/0x160
2010-08-26T10:57:12.127782-07:00 kaan-18 [ 4698.168836] =A0[<ffffff= ff810932b0>] ? autoremove_wake_function+0x0/0x40
2010-08-26T10= :57:12.127788-07:00 kaan-18 [ 4698.168841] =A0[<ffffffff813bd350>] ? = xenwatch_thread+0x0/0x160
2010-08-26T10:57:12.127793-07:00 kaan-18 [ 4698.168847] =A0[<ffffff= ff81092f36>] ? kthread+0x96/0xb0
2010-08-26T10:57:12.127799-07= :00 kaan-18 [ 4698.168852] =A0[<ffffffff8101632a>] ? child_rip+0xa/0x= 20
2010-08-26T10:57:12.127804-07:00 kaan-18 [ 4698.168856] =A0[<ffffff= ff81015c90>] ? restore_args+0x0/0x30
2010-08-26T10:57:12.13704= 2-07:00 kaan-18 [ 4698.168861] =A0[<ffffffff81016320>] ? child_rip+0x= 0/0x20
2010-08-26T10:57:12.137052-07:00 kaan-18 [ 4698.168865] ---[ end trace= d11f63be69302ffc ]---
2010-08-26T10:57:18.775160-07:00 kaan-18 [= 4704.813405] vif3.0: no IPv6 routers present
=A0'cpu/8/avail= ability': 'online', 'cpu/9/availability': 'online&#= 39;, 'image/suspend-cancel': '1', 'cpu/5/availability&#= 39;: 'online', 'cpu/0/availability': 'online', '= ;image/features/pae-pgdir-above-4gb': '1', 'cpu/6/availabil= ity': 'online', 'console/type': 'xenconsoled', = 'cpu/12/availability': 'online', 'name': 'dpm&#= 39;, 'cpu/2/availability': 'online', 'domid': '= 3', 'image/xen-version': 'xen-3.0', 'store/port'= ;: '1', 'cpu/10/availability': 'online'}
[2010-08-26 10:57:09 1840] DEBUG (DevController:95) DevController: wri= ting {'protocol': 'x86_64-abi', 'state': '1'= ;, 'backend-id': '0', 'backend': '/local/domain= /0/backend/console/3/0'} to /local/domain/3/device/console/0.
[2010-08-26 10:57:09 1840] DEBUG (DevController:97) DevController: wri= ting {'domain': 'dpm', 'frontend': '/local/doma= in/3/device/console/0', 'uuid': '460962e0-bc9b-f7de-b5f4-70= 715fb5d614', 'frontend-id': '3', 'state': '= 1', 'location': '2', 'online': '1', = 9;protocol': 'vt100'} to /local/domain/0/backend/console/3/0.
[2010-08-26 10:57:09 1840] DEBUG (pciif:460) XendDomainInfo.handleAerS= tateWatch
[2010-08-26 10:57:09 1840] DEBUG (XendDomainInfo:1891) = XendDomainInfo.handleShutdownWatch
[2010-08-26 10:57:09 1840] DEB= UG (DevController:139) Waiting for devices tap2.
[2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devic= es vif.
[2010-08-26 10:57:09 1840] DEBUG (DevController:144) Wait= ing for 0.
[2010-08-26 10:57:09 1840] DEBUG (DevController:628) h= otplugStatusCallback /local/domain/0/backend/vif/3/0/hotplug-status.
[2010-08-26 10:57:09 1840] DEBUG (DevController:642) hotplugStatusCall= back 1.
[2010-08-26 10:57:09 1840] DEBUG (DevController:139) Wait= ing for devices vkbd.
[2010-08-26 10:57:09 1840] DEBUG (DevContro= ller:139) Waiting for devices ioports.
[2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devic= es tap.
[2010-08-26 10:57:09 1840] DEBUG (DevController:139) Wait= ing for devices vif2.
[2010-08-26 10:57:09 1840] DEBUG (DevContro= ller:139) Waiting for devices console.
[2010-08-26 10:57:09 1840] DEBUG (DevController:144) Waiting for 0.
[2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for de= vices vscsi.
[2010-08-26 10:57:09 1840] DEBUG (DevController:139)= Waiting for devices vbd.
[2010-08-26 10:57:09 1840] DEBUG (DevController:144) Waiting for 51712= .
[2010-08-26 10:57:09 1840] DEBUG (DevController:628) hotplugSta= tusCallback /local/domain/0/backend/vbd/3/51712/hotplug-status.
[2010-08-26 10:57:09 1840] DEBUG (DevController:642) hotplugStatusCallback = 1.
[2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting f= or devices irq.
[2010-08-26 10:57:09 1840] DEBUG (DevController:1= 39) Waiting for devices vfb.
[2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devic= es pci.
[2010-08-26 10:57:09 1840] DEBUG (DevController:144) Wait= ing for 0.
[2010-08-26 10:57:09 1840] DEBUG (DevController:139) W= aiting for devices vusb.
[2010-08-26 10:57:09 1840] DEBUG (DevController:139) Waiting for devic= es vtpm.
[2010-08-26 10:57:09 1840] INFO (XendDomain:1206) Domain= dpm (3) unpaused.

=3D=3D> kern.log <=3D=3D<= /div>
2010-08-26T10:57:12.085252-07:00 kaan-18 [ 4698.128356] blkback: ring-= ref 8, event-channel 93, protocol 1 (x86_64-abi)
2010-08-26T10:57= :12.126039-07:00 kaan-18 [ 4698.168555] ------------[ cut here ]-----------= -
2010-08-26T10:57:12.126141-07:00 kaan-18 [ 4698.168569] WARNING: at ke= rnel/lockdep.c:2323 trace_hardirqs_on_caller+0x12f/0x190()
2010-0= 8-26T10:57:12.126220-07:00 kaan-18 [ 4698.168574] Hardware name: ProLiant D= L380 G6
2010-08-26T10:57:12.126297-07:00 kaan-18 [ 4698.168578] Modules linked= in: xt_physdev xenfs xen_gntdev xen_evtchn ipv6 xen_pciback tun fbcon tile= blit font bitblit softcursor bridge stp llc radeon ttm drm_kms_helper lp dr= m i2c_algo_bit ipmi_si joydev i2c_core ipmi_msghandler hpilo hpwdt parport = serio_raw usbhid hid cciss usb_storage
2010-08-26T10:57:12.126405-07:00 kaan-18 [ 4698.168644] Pid: 11, comm:= xenwatch Not tainted 2.6.32.18 #1
2010-08-26T10:57:12.126482-07:= 00 kaan-18 [ 4698.168648] Call Trace:
2010-08-26T10:57:12.126559-= 07:00 kaan-18 [ 4698.168651] =A0<IRQ> =A0[<ffffffff810a9f7f>] ?= trace_hardirqs_on_caller+0x12f/0x190
2010-08-26T10:57:12.126655-07:00 kaan-18 [ 4698.168663] =A0[<ffffff= ff8106bd60>] warn_slowpath_common+0x80/0xd0
2010-08-26T10:57:1= 2.126731-07:00 kaan-18 [ 4698.168671] =A0[<ffffffff815f3d70>] ? _spin= _unlock_irq+0x30/0x40
2010-08-26T10:57:12.126806-07:00 kaan-18 [ 4698.168676] =A0[<ffffff= ff8106bdc4>] warn_slowpath_null+0x14/0x20
2010-08-26T10:57:12.= 126881-07:00 kaan-18 [ 4698.168682] =A0[<ffffffff810a9f7f>] trace_har= dirqs_on_caller+0x12f/0x190
2010-08-26T10:57:12.126957-07:00 kaan-18 [ 4698.168688] =A0[<ffffff= ff810a9fed>] trace_hardirqs_on+0xd/0x10
2010-08-26T10:57:12.12= 7034-07:00 kaan-18 [ 4698.168693] =A0[<ffffffff815f3d70>] _spin_unloc= k_irq+0x30/0x40
2010-08-26T10:57:12.127110-07:00 kaan-18 [ 4698.168700] =A0[<ffffff= ff813c4e75>] add_to_net_schedule_list_tail+0x85/0xd0
2010-08-2= 6T10:57:12.127186-07:00 kaan-18 [ 4698.168724] =A0[<ffffffff813c60c6>= ] netif_be_int+0x36/0x160
2010-08-26T10:57:12.127263-07:00 kaan-18 [ 4698.168730] =A0[<ffffff= ff810e0ea0>] handle_IRQ_event+0x70/0x180
2010-08-26T10:57:12.1= 27338-07:00 kaan-18 [ 4698.168736] =A0[<ffffffff810e3c69>] handle_lev= el_irq+0x99/0x140
2010-08-26T10:57:12.127433-07:00 kaan-18 [ 4698.168742] =A0[<ffffff= ff813b8acf>] __xen_evtchn_do_upcall+0x1bf/0x1f0
2010-08-26T10:= 57:12.127509-07:00 kaan-18 [ 4698.168747] =A0[<ffffffff813b908d>] xen= _evtchn_do_upcall+0x3d/0x60
2010-08-26T10:57:12.127577-07:00 kaan-18 [ 4698.168754] =A0[<ffffff= ff8101647e>] xen_do_hypervisor_callback+0x1e/0x30
2010-08-26T1= 0:57:12.127584-07:00 kaan-18 [ 4698.168758] =A0<EOI> =A0[<ffffffff= 8100940a>] ? hypercall_page+0x40a/0x1010
2010-08-26T10:57:12.127589-07:00 kaan-18 [ 4698.168769] =A0[<ffffff= ff8100940a>] ? hypercall_page+0x40a/0x1010
2010-08-26T10:57:12= .127595-07:00 kaan-18 [ 4698.168775] =A0[<ffffffff813bcd04>] ? xb_wri= te+0x1e4/0x290
2010-08-26T10:57:12.127650-07:00 kaan-18 [ 4698.168780] =A0[<ffffff= ff813bd77a>] ? xs_talkv+0x6a/0x1f0
2010-08-26T10:57:12.127657-= 07:00 kaan-18 [ 4698.168785] =A0[<ffffffff813bd788>] ? xs_talkv+0x78/= 0x1f0
2010-08-26T10:57:12.127662-07:00 kaan-18 [ 4698.168790] =A0[<ffffff= ff813bda7d>] ? xs_single+0x4d/0x60
2010-08-26T10:57:12.127667-= 07:00 kaan-18 [ 4698.168795] =A0[<ffffffff813be3b2>] ? xenbus_read+0x= 52/0x80
2010-08-26T10:57:12.127673-07:00 kaan-18 [ 4698.168800] =A0[<ffffff= ff813c86ac>] ? frontend_changed+0x48c/0x770
2010-08-26T10:57:1= 2.127678-07:00 kaan-18 [ 4698.168806] =A0[<ffffffff813bf61d>] ? xenbu= s_otherend_changed+0xdd/0x1b0
2010-08-26T10:57:12.127684-07:00 kaan-18 [ 4698.168813] =A0[<ffffff= ff81010e3f>] ? xen_restore_fl_direct_end+0x0/0x1
2010-08-26T10= :57:12.127689-07:00 kaan-18 [ 4698.168818] =A0[<ffffffff810ac610>] ? = lock_release+0xb0/0x230
2010-08-26T10:57:12.127770-07:00 kaan-18 [ 4698.168823] =A0[<ffffff= ff813bf990>] ? frontend_changed+0x10/0x20
2010-08-26T10:57:12.= 127777-07:00 kaan-18 [ 4698.168829] =A0[<ffffffff813bd3a5>] ? xenwatc= h_thread+0x55/0x160
2010-08-26T10:57:12.127782-07:00 kaan-18 [ 4698.168836] =A0[<ffffff= ff810932b0>] ? autoremove_wake_function+0x0/0x40
2010-08-26T10= :57:12.127788-07:00 kaan-18 [ 4698.168841] =A0[<ffffffff813bd350>] ? = xenwatch_thread+0x0/0x160
2010-08-26T10:57:12.127793-07:00 kaan-18 [ 4698.168847] =A0[<ffffff= ff81092f36>] ? kthread+0x96/0xb0
2010-08-26T10:57:12.127799-07= :00 kaan-18 [ 4698.168852] =A0[<ffffffff8101632a>] ? child_rip+0xa/0x= 20
2010-08-26T10:57:12.127804-07:00 kaan-18 [ 4698.168856] =A0[<ffffff= ff81015c90>] ? restore_args+0x0/0x30
2010-08-26T10:57:12.13704= 2-07:00 kaan-18 [ 4698.168861] =A0[<ffffffff81016320>] ? child_rip+0x= 0/0x20
2010-08-26T10:57:12.137052-07:00 kaan-18 [ 4698.168865] ---[ end trace= d11f63be69302ffc ]---
2010-08-26T10:57:18.775160-07:00 kaan-18 [= 4704.813405] vif3.0: no IPv6 routers present

Possibly related, or not, domU is running of memory:

boot looks normal until here:
[ =A0 =A00.659086] ude= v: starting version 151
[ =A0 =A00.783917] Initialising Xen virtu= al ethernet driver.
[ =A0 =A00.805892] blkfront: xvda: barriers enabled
[ =A0 = =A00.807202] =A0xvda: xvda1 xvda2 < xvda5 >
[ =A0 =A01.0489= 85] EXT4-fs (xvda1): mounted filesystem with ordered data mode
[ = =A0 =A09.025260] Out of memory: kill process 633 (init) score 898 or a chil= d
[ =A0 =A09.025413] Killed process 633 (init)
[ =A0 =A09.3445= 81] Out of memory: kill process 534 (rsyslogd) score 428 or a child
[ =A0 =A09.344740] Killed process 629 (rsyslogd)
[ =A0 =A09.65= 7456] Out of memory: kill process 424 (mountall) score 405 or a child
[ =A0 =A09.657613] Killed process 424 (mountall)

<= /div>
-Bruce
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