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xen-devel
Re: [Xen-devel] pvops: boot locks up while initialising PCI
On Wed, Sep 23, 2009 at 12:17:23PM -0700, Jeremy Fitzhardinge wrote:
> On 09/22/09 22:32, Simon Horman wrote:
> > Hi,
> >
> > while trying to boot xen/master at the following changest the boot
> > locks up somewhere around the initialisation of PCI. Boot log and
> > config attached. Any insights appreciated.
> >
> > commit 398b4b4cabdb27c06a7b8214c2044347ffc08c49
> > Merge: 3973dcf... 6e8f158...
> > Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
> > Date: Tue Sep 22 15:21:28 2009 -0700
> >
> > Merge branch 'xen/dom0/drm' into xen/master
> >
> > * xen/dom0/drm:
> > swiotlb: linux/swiotlb.h needs linux/dma-mapping.h
> >
> >
> > My grub snippet is:
> >
> > title Xen
> > root (hd0,0)
> > kernel /xen com1=115200,8n1,0x3f8,0 console=com1 loglvl=all
> > guest_loglvl=all dom0_mem=1G
> > module /vmlinuz-2.6.31-pvops root=/dev/mapper/sam-root_x86_64
> > console=ttyS0 loglevel=8 ro earlyprintk=xen
> > module /initrd.img-2.6.31-pvops
> >
> >
>
> You should really be using hvc0 for the console. I think ttyS0
> "passthrough"/emulation should work, but using the Xen console is more
> reliable. And you're just losing all console output on the switchover,
> which suggests that serial isn't actually working. Failing that, can
> you get more info from the VGA console?
Hi Jeremy, Hi Pasi,
Thanks for the advice with regards to hvc0, that is working well.
I am now observing a problem while initialising the iommu.
I have worked around this by setting iommu=off.
[ 0.368001] DMAR:No ATSR found
[ 0.368104] IOMMU 0xfed92000: using Register based invalidation
[ 0.372001] IOMMU 0xfed91000: using Register based invalidation
[ 0.372001] IOMMU 0xfed90000: using Register based invalidation
[ 0.372001] IOMMU 0xfed93000: using Register based invalidation
[ 0.372001] IOMMU: Setting RMRR:
[ 0.372001] IOMMU: Setting identity map for device 0000:00:1a.1 [0xdefd6000
- 0xdefd7000]
[ 0.372001] IOMMU: Setting identity map for device 0000:00:1a.0 [0xdefd5000
- 0xdefd6000]
[ 0.372001] IOMMU: Setting identity map for device 0000:00:1d.2 [0xdefd4000
- 0xdefd5000]
[ 0.372001] IOMMU: Setting identity map for device 0000:00:1d.1 [0xdefd3000
- 0xdefd4000]
[ 0.372001] IOMMU: Setting identity map for device 0000:00:1d.0 [0xdefd2000
- 0xdefd3000]
[ 0.372001] IOMMU: Setting identity map for device 0000:00:1a.7 [0xdefd1000
- 0xdefd2000]
[ 0.372001] IOMMU: Setting identity map for device 0000:00:1d.7 [0xdefd0000
- 0xdefd1000]
[ 0.372001] IOMMU: Setting identity map for device 0000:00:02.0 [0xdf600000
- 0xe0000000]
[ 0.372001] IOMMU: Prepare 0-16MiB unity mapping for LPC
[ 0.372001] IOMMU: Setting identity map for device 0000:00:1f.0 [0x0 -
0x1000000]
[ 0.372001] BUG: unable to handle kernel NULL pointer dereference at
000000000000008c
[ 0.372001] IP: [<ffffffff810273f4>] create_irq_nr+0x56/0xc6
[ 0.372001] PGD 0
[ 0.372001] Oops: 0000 [#1] SMP
[ 0.372001] last sysfs file:
[ 0.372001] CPU 0
[ 0.372001] Modules linked in:
[ 0.372001] Pid: 1, comm: swapper Not tainted 2.6.31-pvops #13 HP Compaq
dc7800p Convertible Minitower
[ 0.372001] RIP: e030:[<ffffffff810273f4>] [<ffffffff810273f4>]
create_irq_nr+0x56/0xc6
[ 0.372001] RSP: e02b:ffff88003fea3e20 EFLAGS: 00010086
[ 0.372001] RAX: ffff88003fc5ca00 RBX: 0000000000000018 RCX: 0000000000000000
[ 0.372001] RDX: 0000000000000218 RSI: ffff88003f4ee7d0 RDI: ffff88003f4d3000
[ 0.372001] RBP: ffff88003fc5ca00 R08: ffff88003feddd00 R09: 0000000000000000
[ 0.372001] R10: 0000000000000000 R11: 0000000000000002 R12: 0000000000000000
[ 0.372001] R13: 0000000000000000 R14: 0000000000000218 R15: 0000000000000000
[ 0.372001] FS: 0000000000000000(0000) GS:ffffc90000000000(0000)
knlGS:0000000000000000
[ 0.372001] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 0.372001] CR2: 000000000000008c CR3: 0000000001001000 CR4: 0000000000002660
[ 0.372001] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 0.372001] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 0.372001] Process swapper (pid: 1, threadinfo ffff88003fea2000, task
ffff88003fea1480)
[ 0.372001] Stack:
[ 0.372001] ffff88003f4ee840 0000000000000000 ffff88003f4ee840
ffffffff813dac10
[ 0.372001] <0> 0000000000000000 ffffffff810276bc ffff88003f4ee840
ffffffff811762d2
[ 0.372001] <0> ffff88003f4ee840 0000000000000001 ffff88003feddd80
ffffffff81444952
[ 0.372001] Call Trace:
[ 0.372001] [<ffffffff810276bc>] ? create_irq+0x28/0x35
[ 0.372001] [<ffffffff811762d2>] ? dmar_set_interrupt+0x18/0x9f
[ 0.372001] [<ffffffff81444952>] ? init_dmars+0x57a/0x643
[ 0.372001] [<ffffffff81170017>] ? pci_get_subsys+0x60/0x73
[ 0.372001] [<ffffffff81444c91>] ? intel_iommu_init+0x276/0x369
[ 0.372001] [<ffffffff81427492>] ? pci_iommu_init+0x0/0x26
[ 0.372001] [<ffffffff814274a5>] ? pci_iommu_init+0x13/0x26
[ 0.372001] [<ffffffff81451626>] ? sysctl_init+0x0/0x3f
[ 0.372001] [<ffffffff8100a065>] ? do_one_initcall+0x64/0x17d
[ 0.372001] [<ffffffff81421127>] ? kernel_init+0x168/0x1be
[ 0.372001] [<ffffffff81013b0a>] ? child_rip+0xa/0x20
[ 0.372001] [<ffffffff81012ce7>] ? int_ret_from_sys_call+0x7/0x1b
[ 0.372001] [<ffffffff8101349d>] ? retint_restore_args+0x5/0x6
[ 0.372001] [<ffffffff811ad3d8>] ? acpi_tb_verify_table+0x21/0x4f
[ 0.372001] [<ffffffff811ad3d8>] ? acpi_tb_verify_table+0x21/0x4f
[ 0.372001] [<ffffffff81013b00>] ? child_rip+0x0/0x20
[ 0.372001] Code: c6 eb 60 44 89 ee 89 df e8 c3 5d 25 00 48 85 c0 48 89 c5
75 12 89 de 48 c7 c7 88 1a 32 81 31 c0 e8 cc 52 26 00 eb 3a 4c 8b 60 40 <41> 80
bc 24 8c 00 00 00 00 75 2b 44 89 ee 48 89 c7 e8 3a 44 06
[ 0.372001] RIP [<ffffffff810273f4>] create_irq_nr+0x56/0xc6
[ 0.372001] RSP <ffff88003fea3e20>
[ 0.372001] CR2: 000000000000008c
[ 0.372001] ---[ end trace 4eaa2a86a8e2da22 ]---
[ 0.372006] Kernel panic - not syncing: Attempted to kill init!
[ 0.376001] Pid: 1, comm: swapper Tainted: G D 2.6.31-pvops #13
[ 0.376001] Call Trace:
[ 0.376001] [<ffffffff8128c606>] ? panic+0x86/0x13a
[ 0.376001] [<ffffffff8100922a>] ? _stext+0x22a/0x1001
[ 0.376001] [<ffffffff8100e839>] ? xen_irq_enable_direct_end+0x0/0x7
[ 0.376001] [<ffffffff8100e219>] ? xen_force_evtchn_callback+0x9/0xa
[ 0.376001] [<ffffffff8100e892>] ? check_events+0x12/0x20
[ 0.376001] [<ffffffff8128e325>] ? _write_lock_irq+0x7/0x16
[ 0.376001] [<ffffffff81052902>] ? exit_ptrace+0xa7/0x126
[ 0.376001] [<ffffffff8104cdb6>] ? do_exit+0x72/0x698
[ 0.376001] [<ffffffff8100e892>] ? check_events+0x12/0x20
[ 0.376001] [<ffffffff81016a16>] ? oops_end+0xaf/0xb4
[ 0.376001] [<ffffffff81030e57>] ? no_context+0x1ec/0x1fb
[ 0.376001] [<ffffffff81030ff3>] ? __bad_area_nosemaphore+0x18d/0x1b1
[ 0.376001] [<ffffffff810a7704>] ? __alloc_pages_nodemask+0xf8/0x53c
[ 0.376001] [<ffffffff810311a7>] ? do_page_fault+0x29/0x20f
[ 0.376001] [<ffffffff8128e725>] ? page_fault+0x25/0x30
[ 0.376001] [<ffffffff810273f4>] ? create_irq_nr+0x56/0xc6
[ 0.376001] [<ffffffff810276bc>] ? create_irq+0x28/0x35
[ 0.376001] [<ffffffff811762d2>] ? dmar_set_interrupt+0x18/0x9f
[ 0.376001] [<ffffffff81444952>] ? init_dmars+0x57a/0x643
[ 0.376001] [<ffffffff81170017>] ? pci_get_subsys+0x60/0x73
[ 0.376001] [<ffffffff81444c91>] ? intel_iommu_init+0x276/0x369
[ 0.376001] [<ffffffff81427492>] ? pci_iommu_init+0x0/0x26
[ 0.376001] [<ffffffff814274a5>] ? pci_iommu_init+0x13/0x26
[ 0.376001] [<ffffffff81451626>] ? sysctl_init+0x0/0x3f
[ 0.376001] [<ffffffff8100a065>] ? do_one_initcall+0x64/0x17d
[ 0.376001] [<ffffffff81421127>] ? kernel_init+0x168/0x1be
[ 0.376001] [<ffffffff81013b0a>] ? child_rip+0xa/0x20
[ 0.376001] [<ffffffff81012ce7>] ? int_ret_from_sys_call+0x7/0x1b
[ 0.376001] [<ffffffff8101349d>] ? retint_restore_args+0x5/0x6
[ 0.376001] [<ffffffff811ad3d8>] ? acpi_tb_verify_table+0x21/0x4f
[ 0.376001] [<ffffffff811ad3d8>] ? acpi_tb_verify_table+0x21/0x4f
[ 0.376001] [<ffffffff81013b00>] ? child_rip+0x0/0x20
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