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xen-users
[Xen-users] Re: OpenSUSE 11.2 Xen HVM guest crash causing BUG() in dom0
On Sat, Jan 23, 2010 at 01:44:56PM -0500, Mike Fenton wrote:
> Hi Andrew,
>
> I just updated to the latest kotd with no luck. Xen is producing the same
> error.
>
Just to be more clear, Mike used 2.6.32-41.1 x86_64 kernel from
http://download.opensuse.org/repositories/Kernel:/HEAD/openSUSE_11.2/x86_64/
and it seems he doesn't get BUG() and traceback in dom0 anymore when
HVM guest crashes:
http://pastebin.com/m5aff9158
(XEN) Domain 3 reported crashed by domain 0 on cpu#0:
lots of these still though:
(XEN) domain_crash called from p2m.c:1091
(XEN) p2m_pod_demand_populate: Out of populate-on-demand memory!
and then
[ 233.171451] BUG: soft lockup - CPU#0 stuck for 61s! [qemu-dm:3722]
So I guess that's OK now..
-- Pasi
> On Sat, Jan 23, 2010 at 12:33 PM, Pasi Kärkkäinen <[1]pasik@xxxxxx> wrote:
>
> On Sat, Jan 23, 2010 at 05:04:37PM +0000, Andrew Lyon wrote:
> > Pasi,
> >
> > I'm not sure if that kernel rpm version includes the swiotlb fixes
> > that made 2.6.31 reliable on all of my xen systems, it would be a good
> > idea if the user tries the latest kotd rpm for kernel-xen as that
> > should be up to date with the git tree which definatly has the
> > necessary fixes.
> >
>
> [2]ftp://ftp.suse.com/pub/projects/kernel/kotd/master/x86_64/
> Seems to have 2.6.32 based kernels.
>
> Do you know if there are newer 2.6.31 based?
> 2.6.31.8-0.1-xen in OpenSUSE 11.2 seems to be dated 18 Dec 2009.
> > Since Jan fixed the swiotlb problems I've not had a single crash with
> > .31 and I've tested it very thoroughly so I am surprised if there are
> > still undiscovered bugs.
> >
>
> Yeah.. that's what I said too :)
> -- Pasi
> > Andy
> >
> > On 23/01/2010, Pasi Kärkkäinen <[3]pasik@xxxxxx> wrote:
> > > Hello,
> > >
> > > I was talking on irc with an user who had problems with HVM guests
> > > (freebsd freenas) on OpenSUSE 11.2 Xen 3.4.1.
> > >
> > > Andy/Jan: Have you guys seen this before? Is it normal to have
> > > this kind of BUG()s in dom0, when a guest crashes?
> > >
> > > dom0 kernel: 2.6.31.8-0.1-xen x86_64
> > > Xen: Xen-3.4.1_19718_04-2.1 x86_64
> > >
> > > So basicly HVM guest crashes, and then dom0 gets BUG().
> > >
> > > Also reported here:
> > > [4]https://bugzilla.novell.com/show_bug.cgi?id=573305
> > >
> > > First:
> > > (XEN) Domain 4 reported crashed by domain 0 on cpu#0:
> > >
> > > then lots of:
> > >
> > > (XEN) domain_crash called from p2m.c:1091
> > > (XEN) p2m_pod_demand_populate: Out of populate-on-demand memory!
> > >
> > > And then:
> > >
> > > [ 5293.824815] BUG: soft lockup - CPU#0 stuck for 61s!
> [qemu-dm:6405]
> > > [ 5293.824815] Modules linked in: tun nf_conntrack_ipv4
> nf_defrag_ipv4
> > > xt_state nf_conntrack xt_physdev iptable_filter ip_tables x_tables
> netbk
> > > blkbk blkback_pagemap blktap xenbus_be edd nls_utf8 cifs i915 drm
> > > i2c_algo_bit video output bridge stp llc fuse loop dm_mod
> usb_storage 3c59x
> > > 8250_pnp 8250_pci intel_agp pcspkr heci(C) serio_raw iTCO_wdt wmi
> sr_mod sg
> > > iTCO_vendor_support 8250 agpgart container button i2c_i801
> serial_core
> > > i2c_core usbhid hid raid456 raid6_pq async_xor async_memcpy async_tx
> xor
> > > raid1 raid0 uhci_hcd ehci_hcd xenblk cdrom xennet fan processor
> > > ide_pci_generic ide_core ata_generic thermal thermal_sys hwmon
> > > [ 5293.824815] CPU 0:
> > > [ 5293.824815] Modules linked in: tun nf_conntrack_ipv4
> nf_defrag_ipv4
> > > xt_state nf_conntrack xt_physdev iptable_filter ip_tables x_tables
> netbk
> > > blkbk blkback_pagemap blktap xenbus_be edd nls_utf8 cifs i915 drm
> > > i2c_algo_bit video output bridge stp llc fuse loop dm_mod
> usb_storage 3c59x
> > > 8250_pnp 8250_pci intel_agp pcspkr heci(C) serio_raw iTCO_wdt wmi
> sr_mod sg
> > > iTCO_vendor_support 8250 agpgart container button i2c_i801
> serial_core
> > > i2c_core usbhid hid raid456 raid6_pq async_xor async_memcpy async_tx
> xor
> > > raid1 raid0 uhci_hcd ehci_hcd xenblk cdrom xennet fan processor
> > > ide_pci_generic ide_core ata_generic thermal thermal_sys hwmon
> > > [ 5293.824815] Pid: 6405, comm: qemu-dm Tainted: G C
> > > 2.6.31.8-0.1-xen #1 7484A8U
> > > [ 5293.824815] RIP: e030:[<ffffffff8000802a>] [<ffffffff8000802a>]
> > > 0xffffffff8000802a
> > > [ 5293.824815] RSP: e02b:ffff880028791cc0 EFLAGS: 00000246
> > > [ 5293.824815] RAX: 00000000ffffffea RBX: 8000000000000427 RCX:
> > > ffffffff8000802a
> > > [ 5293.824815] RDX: 0000000000000000 RSI: 0000000000000001 RDI:
> > > ffff88002f4e5000
> > > [ 5293.824815] RBP: ffff880028791d38 R08: 0000000000000000 R09:
> > > ffff880028791d00
> > > [ 5293.824815] R10: 0000000000000004 R11: 0000000000000246 R12:
> > > ffff88002f4e5010
> > > [ 5293.824815] R13: 00007f2512e9d000 R14: 00000000000016f6 R15:
> > > ffff88002f4e5000
> > > [ 5293.824815] FS: 00007f251ede76f0(0000) GS:ffffc90000000000(0000)
> > > knlGS:0000000000000000
> > > [ 5293.824815] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b
> > > [ 5293.824815] CR2: 00007fd847703000 CR3: 000000001bd9d000 CR4:
> > > 0000000000002660
> > > [ 5293.824815] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
> > > 0000000000000000
> > > [ 5293.824815] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
> > > 0000000000000400
> > > [ 5293.824815] Call Trace:
> > > [ 5293.824815] [<ffffffff80026759>]
> __direct_remap_pfn_range+0x1b9/0x200
> > > [ 5293.824815] [<ffffffff80026813>]
> direct_remap_pfn_range+0x43/0x50
> > > [ 5293.824815] [<ffffffff80311a08>] privcmd_ioctl+0x618/0x740
> > > [ 5293.824815] [<ffffffff80180772>]
> proc_reg_unlocked_ioctl+0x92/0x160
> > > [ 5293.824815] [<ffffffff8012b510>] vfs_ioctl+0x30/0xd0
> > > [ 5293.824815] [<ffffffff8012b6f0>] do_vfs_ioctl+0x90/0x430
> > > [ 5293.824815] [<ffffffff8012bb29>] sys_ioctl+0x99/0xb0
> > > [ 5293.824815] [<ffffffff8000c868>] system_call_fastpath+0x16/0x1b
> > > [ 5293.824815] [<00007f251d26d7e7>] 0x7f251d26d7e7
> > >
> > > Full log here:
> > > [5]http://pastebin.com/m24b0e01
> > >
> > > -- Pasi
> > >
> > >
> >
> > --
> > Sent from my mobile device
>
> References
>
> Visible links
> 1. mailto:pasik@xxxxxx
> 2. ftp://ftp.suse.com/pub/projects/kernel/kotd/master/x86_64/
> 3. mailto:pasik@xxxxxx
> 4. https://bugzilla.novell.com/show_bug.cgi?id=573305
> 5. http://pastebin.com/m24b0e01
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