Re: [Xen-devel] 4.3 regression in booting on a particular platform

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 09.07.13 at 14:55, Ben Guthro <ben@xxxxxxxxxx> wrote:
> Jan,
> 
> I was given a machine to diagnose a boot problem on xen 4.3, that used
> to work on 4.2, and have bisected to the following changeset:
> 
> commit d0d4635d034f202bb401a6efa3ba61530f3854ab
> Author: Jan Beulich <jbeulich@xxxxxxxx>
> Date:   Thu Nov 22 10:47:58 2012 +0100
> 
>     implement vmap()
> 
>     ... and use it as basis for a proper ioremap() on x86.
> 
>     Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
>     Acked-by: Keir Fraser <keir@xxxxxxx>
> 
> 
> Full diff:
> http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=d0d4635d034f202bb401a6ef 
> a3ba61530f3854ab
> 
> 
> While this is pre-release hardware from an OEM, it did work on 4.2, so
> I am not (yet) inclined to blame it on being pre-release hardware.
> 
> This is very early in boot, and so does not have a proper stack.
> Do you have any thoughts as to where this might be going awry?

If you could make the xen-syms available matching the xen.gz that
was used when the below log was obtained, I could try to take a
look.

Perhaps repeating the attempt with "iommu=debug" could reveal
further useful details.

Jan

> The Xen boot log looks like the following in the bad case:
> 
> \ \/ /___ _ __ | || | |___ / _ _ _ __ ___| |_ __ _| |__ | | ___
>   \ // _ \ '_ \ | || |_ |_ \ __| | | | '_ \/ __| __/ _` | '_ \| |/ _ \
>   / \ __/ | | | |__ _| ___) |__| |_| | | | \__ \ || (_| | |_) | | __/
>  /_/\_\___|_| |_| |_|(_)____/ \__,_|_| |_|___/\__\__,_|_.__/|_|\___|
> 
> (XEN) Xen version 4.3-unstable (@oldroadcomputing.net) (gcc
> (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3) debug=y Mon Jul 8 15:09:16 EDT
> 2013
> (XEN) Latest ChangeSet: Mon Jul 8 15:08:40 2013 -0400 git:6a62f63
> (XEN) Console output is synchronous.
> (XEN) Bootloader: COM32 Multiboot loader v0.2
> (XEN) Command line: dom0_mem=max:2048M dbgp=ehci@pci00:1d.0
> console=dbgp loglvl=all sync_console
> (XEN) Video information:
> (XEN) VGA is text mode 80x25, font 8x16
> (XEN) VBE/DDC methods: V2; EDID transfer time: 1 seconds
> (XEN) Disc information:
> (XEN) Found 1 MBR signatures
> (XEN) Found 1 EDD information structures
> (XEN) Xen-e820 RAM map:
> (XEN) 0000000000000000 - 0000000000091800 (usable)
> (XEN) 0000000000091800 - 00000000000a0000 (reserved)
> (XEN) 00000000000e0000 - 0000000000100000 (reserved)
> (XEN) 0000000000100000 - 00000000aad0b000 (usable)
> (XEN) 00000000aad0b000 - 00000000aad12000 (ACPI NVS)
> (XEN) 00000000aad12000 - 00000000ab917000 (usable)
> (XEN) 00000000ab917000 - 00000000abdd4000 (reserved)
> (XEN) 00000000abdd4000 - 00000000b5db4000 (usable)
> (XEN) 00000000b5db4000 - 00000000b6000000 (reserved)
> (XEN) 00000000b6000000 - 00000000b675c000 (usable)
> (XEN) 00000000b675c000 - 00000000b6800000 (reserved)
> (XEN) 00000000b6800000 - 00000000b6fb0000 (usable)
> (XEN) 00000000b6fb0000 - 00000000b7000000 (ACPI data)
> (XEN) 00000000b7000000 - 00000000b871c000 (usable)
> (XEN) 00000000b871c000 - 00000000b8800000 (ACPI NVS)
> (XEN) 00000000b8800000 - 00000000b9765000 (usable)
> (XEN) 00000000b9765000 - 00000000ba000000 (reserved)
> (XEN) 00000000bd000000 - 00000000bf200000 (reserved)
> (XEN) 00000000f8000000 - 00000000fc000000 (reserved)
> (XEN) 00000000fec00000 - 00000000fec01000 (reserved)
> (XEN) 00000000fed00000 - 00000000fed04000 (reserved)
> (XEN) 00000000fed1c000 - 00000000fed20000 (reserved)
> (XEN) 00000000fee00000 - 00000000fee01000 (reserved)
> (XEN) 00000000ff000000 - 0000000100000000 (reserved)
> (XEN) 0000000100000000 - 000000023fe00000 (usable)
> (XEN) ACPI: RSDP 000EEE50, 0024 (r2 DELL )
> (XEN) ACPI: XSDT B6FF1088, 0094 (r1 DELL CBX3 1072009 AMI 10013)
> (XEN) ACPI: FACP B6FFDDE8, 010C (r5 DELL CBX3 1072009 AMI 10013)
> (XEN) ACPI: DSDT B6FF11B0, CC33 (r2 DELL CBX3 14 INTL 20091112)
> (XEN) ACPI: FACS B87FE080, 0040
> (XEN) ACPI: APIC B6FFDEF8, 0072 (r3 DELL CBX3 1072009 AMI 10013)
> (XEN) ACPI: FPDT B6FFDF70, 0044 (r1 DELL CBX3 1072009 AMI 10013)
> (XEN) ACPI: ASF! B6FFDFB8, 00A5 (r32 INTEL HCG 1 TFSM F4240)
> (XEN) ACPI: SSDT B6FFE060, 01F8 (r1 INTEL sensrhub 0 INTL 20120711)
> (XEN) ACPI: SSDT B6FFE258, 01BE (r1 Intel zpoddult 1000 INTL 20091112)
> (XEN) ACPI: SSDT B6FFE418, 018E (r1 AcpiRe Ult0Rtd3 1000 INTL 20051117)
> (XEN) ACPI: SSDT B6FFE5A8, 0548 (r1 PmRef Cpu0Ist 3000 INTL 20051117)
> (XEN) ACPI: SSDT B6FFEAF0, 0AD8 (r1 PmRef CpuPm 3000 INTL 20051117)
> (XEN) ACPI: HPET B6FFF5C8, 0038 (r1 DELL CBX3 1072009 AMI. 5)
> (XEN) ACPI: SSDT B6FFF600, 03BD (r1 SataRe SataTabl 1000 INTL 20091112)
> (XEN) ACPI: MCFG B6FFF9C0, 003C (r1 DELL CBX3 1072009 MSFT 97)
> (XEN) ACPI: CSRT B6FFFA00, 00C4 (r1 INTL HSWULT-R 1 INTL 20100528)
> (XEN) ACPI: DMAR B6FFFAC8, 0088 (r1 INTEL HSW 1 INTL 1)
> (XEN) System RAM: 8076MB (8269880kB)
> (XEN) No NUMA configuration found
> (XEN) Faking a node at 0000000000000000-000000023fe00000
> (XEN) Domain heap initialised
> (XEN) found SMP MP-table at 000fd990
> (XEN) DMI 2.7 present.
> (XEN) Using APIC driver default
> (XEN) ACPI: PM-Timer IO Port: 0x1808
> (XEN) ACPI: v5 SLEEP INFO: control[0:0], status[0:0]
> (XEN) ACPI: SLEEP INFO: pm1x_cnt[1804,0], pm1x_evt[1800,0]
> (XEN) ACPI: 32/64X FACS address mismatch in FADT -
> b87fe080/0000000000000000, using 32
> (XEN) ACPI: wakeup_vec[b87fe08c], vec_size[20]
> (XEN) ACPI: Local APIC address 0xfee00000
> (XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
> (XEN) Processor #0 6:5 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled)
> (XEN) Processor #2 6:5 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x01] enabled)
> (XEN) Processor #1 6:5 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x03] enabled)
> (XEN) Processor #3 6:5 APIC version 21
> (XEN) ACPI: LAPIC_NMI (acpi_id[0xff] high edge lint[0x1])
> (XEN) ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
> (XEN) IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-39
> (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
> (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
> (XEN) ACPI: IRQ0 used by override.
> (XEN) ACPI: IRQ2 used by override.
> (XEN) ACPI: IRQ9 used by override.
> (XEN) Enabling APIC mode: Flat. Using 1 I/O APICs
> (XEN) ACPI: HPET id: 0x8086a701 base: 0xfed00000
> (XEN) [VT-D]iommu.c:1168: IOMMU: unsupported
> (XEN) ---- print_iommu_regs ----
> (XEN) drhd->address = 0
> (XEN) VER = f0004800
> (XEN) CAP = f000eef3f000e2c3
> (XEN) n_fault_reg = ef
> (XEN) fault_recording_offset = 3f00
> (XEN) ECAP = f000ff54f000eef5
> (XEN) GCMD = f0003182
> (XEN) GSTS = f000312a
> (XEN) RTADDR = e8000304f000fea5
> (XEN) CCMD = f000eef3f000eef3
> (XEN) FSTS = f000eef3
> (XEN) FECTL = f000ef57
> (XEN) FEDATA = f000ff53
> (XEN) FEADDR = c0000014
> (XEN) FEUADDR = f000f84d
> (XEN) Unknown interrupt (cr2=0000000000000000)
> (XEN) ffff82c3ffd77ac8 ffff82c3ffd77ac8 ffff83023c4e5530
> ffff82c3ffd54000 ffff82c4c02d7c28 0000000000000000 0000000000000a0d
> 0000000000000096 ffff82c3ffffc0a0 0000000050010412 0000000000000000
> ffff82c008000000 ffff82c3ffd54000 0000000000000030 ffff82c3ffd54000
> ffff82c4c012d525 000000000000e008 0000000000010086 ffff82c4c02d7c18
> 0000000000000000 ffff82c4c012d51a ffff82c3ffd54000 0000000000000000
> ffff82c4c02d7c48 ffff82c4c012d5f9 ffff83023c4e55c0 00000000ffffffed
> ffff82c4c02d7c68 ffff82c4c029978f ffff82c3ffd77af8 ffff82c3ffd77af8
> ffff82c4c02d7cf8 ffff82c4c029a63a ffff82c3ffd77000 ffff8300b97641e0
> ffff82c4c02d7d10 ffff82c4c029a251 ffff82c4c02d7cb8 ffff82c4c029ea42
> ffff82c4c02d7cb8 ffff8300b97641e0 ffff82c4c02d7cd8 ffff82c4c029f2ff
> 0000000000000000 ffff82c4c029a251 ffff82c4c024dbd5 ffff82c4c029a251
> 0000000000000000 0000000000002515 ffff82c4c02d7d28 ffff82c4c02a0607
> ffff82c3ffd78000 ffff82c3ffd77ac8 0000000000000000 0000000000000000
> ffff82c4c02d7df8 ffff82c4c02acd1f ffff82c4c02d7d68 ffff82c4c0225f56
> ffff82c4c02d7d58 0000000000000000 0000000000000163 000ffffffffff000
> ffff82c4c02d7df8 ffff82c4c0174cdc ffff82c4c02d7e08 00000000000001e3
> 00000000000b6dff 0000000000000163 00000000b6dff000 00000000000001e3
> 0000000000000000 00000000000b7000 ffff8300b7000ac8 ffff82c4c02d7e10
> ffff82c4c02d7df8 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000 0000000000000000 ffff82c4c02d7e18 ffff82c4c029af1f
> 0000000000000088 00000000b6fffac8 ffff82c4c02d7e48 ffff82c4c02ae4b7
> ffff82c4c02d7e48 ffff830000080f20 000000000023fdff ffff830000080fb0
> ffff82c4c02d7f08 ffff82c4c02aa6de 0000000000000000 0000000000000000
> 0000000000100000 ffff830000080be0 ffff830000080f20 0000000000000000
> 00000000aac00000 ffff830000080f01 ffff830000080fb0 0000000000fa4000
> 000000000000001c ffff82c4c02c3c34 0000000800000000 000000010000006e
> 0000000000000003 00000000000002f8 0000000000000000 0000000000000000
> 000000000000180a 00000000a8ef4988 0000000000000001 00000000afbd9018
> 0000000000000000 ffff82c4c01000b5 0000000000000000 0000000000000000
> 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 00000000fffff000 0000000000000000 0000000000000000



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