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Re: [Xen-users] Xen 3.4.2 DomU Network Issues

  • To: Xen List <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: Peter Braun <xenware@xxxxxxxxx>
  • Date: Sun, 22 Nov 2009 18:31:39 +0100
  • Delivery-date: Sun, 22 Nov 2009 09:32:32 -0800
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>
Dom0 kernel?

xen stock 2.6.18.8
any other?

What kind of Intel netwokr driver do you use?

kernel - built in
kernel - module
igb - intel linux driver from sourceforge compiled as module?



2009/11/22 Mark Pace <pace@xxxxxxxxxxxxxxxxxxx>:
> I've got a new system with Dual Quad Core Intel E5520 processors and Intel
> 82576 NICs built on the motherboard (this is a Supermicro Nehalem based
> blade).  I'm running Xen 3.4.2, but I've also tried 3.4.1 and had the same
> problem.
>
> Dom0's network works flawlessly, but the DomU systems all have network
> issues.  Whenever they transmit large packets, it is as if the DomU doesn't
> recognize them arriving back.  You can watch them get to the DomU via
> tcpdump, but the DomU programs doesn't bother to actually do anything about
> them.  Sometimes after many retries it will be successful.  One of the
> easiest ways to watch it fail is to tell curl to download a webpage.  If
> that webpage has a relatively large response, curl will not get anything.
> If you curl a small webpage, it will get it.
>
> I've tried disabling TCP offloading on the network cards and I've tried
> cpuidle=0 cpufreq=none to no avail.  I've disabled everything fancy in the
> BIOS except for the regular VT features (VT-d is disabled).
>
> Any help is greatly appreciated.
>
>
> Thanks,
> pace
>
> Here's the dmesg:
>
> __  __            _____ _  _    ____
> \ \/ /___ _ __   |___ /| || |  |___ \
>   \  // _ \ '_ \    |_ \| || |_   __) |
>   /  \  __/ | | |  ___) |__   _| / __/
> /_/\_\___|_| |_| |____(_) |_|(_)_____|
>
> (XEN) Xen version 3.4.2 (root@xxxxxxxxx) (gcc version 4.1.2 20080704 (Red
> Hat 4.1.2-44)) Wed Nov 11 21:16:28 CET 2009
> (XEN) Latest ChangeSet: unavailable
> (XEN) Command line: dom0_mem=768M lowmem_emergency_pool=16M
> (XEN) Video information:
> (XEN)  VGA is text mode 80x25, font 8x16
> (XEN)  VBE/DDC methods: none; EDID transfer time: 0 seconds
> (XEN)  EDID info not retrieved because no DDC retrieval method detected
> (XEN) Disc information:
> (XEN)  Found 6 MBR signatures
> (XEN)  Found 6 EDD information structures
> (XEN) Xen-e820 RAM map:
> (XEN)  0000000000000000 - 000000000009b400 (usable)
> (XEN)  000000000009b400 - 00000000000a0000 (reserved)
> (XEN)  00000000000e6000 - 0000000000100000 (reserved)
> (XEN)  0000000000100000 - 00000000bf7b0000 (usable)
> (XEN)  00000000bf7b0000 - 00000000bf7be000 (ACPI data)
> (XEN)  00000000bf7be000 - 00000000bf7d0000 (ACPI NVS)
> (XEN)  00000000bf7d0000 - 00000000bf7e0000 (reserved)
> (XEN)  00000000bf7ec000 - 00000000c0000000 (reserved)
> (XEN)  00000000fee00000 - 00000000fee01000 (reserved)
> (XEN)  00000000ffc00000 - 0000000100000000 (reserved)
> (XEN)  0000000100000000 - 0000000640000000 (usable)
> (XEN) System RAM: 24567MB (25156908kB)
> (XEN) ACPI: RSDP 000FADD0, 0024 (r2 ACPIAM)
> (XEN) ACPI: XSDT BF7B0100, 004C (r1 073009 XSDT1518 20090730 MSFT       97)
> (XEN) ACPI: FACP BF7B0290, 00F4 (r4 073009 FACP1518 20090730 MSFT       97)
> (XEN) ACPI: DSDT BF7B04B0, 5776 (r2  1B8DT 1B8DT002        2 INTL 20051117)
> (XEN) ACPI: FACS BF7BE000, 0040
> (XEN) ACPI: APIC BF7B0390, 00D2 (r2 073009 APIC1518 20090730 MSFT       97)
> (XEN) ACPI: MCFG BF7B0470, 003C (r1 073009 OEMMCFG  20090730 MSFT       97)
> (XEN) ACPI: OEMB BF7BE040, 0072 (r1 073009 OEMB1518 20090730 MSFT       97)
> (XEN) ACPI: SRAT BF7BA4B0, 01D0 (r1 073009 OEMSRAT         1 INTL        1)
> (XEN) Domain heap initialised
> (XEN) Processor #0 7:10 APIC version 21
> (XEN) Processor #2 7:10 APIC version 21
> (XEN) Processor #4 7:10 APIC version 21
> (XEN) Processor #6 7:10 APIC version 21
> (XEN) Processor #16 7:10 APIC version 21
> (XEN) Processor #18 7:10 APIC version 21
> (XEN) Processor #20 7:10 APIC version 21
> (XEN) Processor #22 7:10 APIC version 21
> (XEN) Processor #1 7:10 APIC version 21
> (XEN) Processor #3 7:10 APIC version 21
> (XEN) Processor #5 7:10 APIC version 21
> (XEN) Processor #7 7:10 APIC version 21
> (XEN) Processor #17 7:10 APIC version 21
> (XEN) Processor #19 7:10 APIC version 21
> (XEN) Processor #21 7:10 APIC version 21
> (XEN) Processor #23 7:10 APIC version 21
> (XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
> (XEN) Enabling APIC mode:  Phys.  Using 1 I/O APICs
> (XEN) Using scheduler: SMP Credit Scheduler (credit)
> (XEN) Detected 2261.051 MHz processor.
> (XEN) VMX: Supported advanced features:
> (XEN)  - APIC MMIO access virtualisation
> (XEN)  - APIC TPR shadow
> (XEN)  - Extended Page Tables (EPT)
> (XEN)  - Virtual-Processor Identifiers (VPID)
> (XEN)  - Virtual NMI
> (XEN)  - MSR direct-access bitmap
> (XEN) VMX: EPT is available.
> (XEN) VMX: VPID is available.
> (XEN) HVM: VMX enabled
> (XEN) HVM: Hardware Assisted Paging detected.
> (XEN) CPU0: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05
> (XEN) Booting processor 1/2 eip 8c000
> (XEN) CPU1: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05
> (XEN) Booting processor 2/4 eip 8c000
> (XEN) CPU2: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05
> (XEN) Booting processor 3/6 eip 8c000
> (XEN) CPU3: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05
> (XEN) Booting processor 4/16 eip 8c000
> (XEN) MCE: The hardware reports a non fatal, correctable incident occured on
> CPU 0.
> (XEN) Bank 8: ea1c6fc0008000b0[               0]
> (XEN) CPU4: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05
> (XEN) Booting processor 5/18 eip 8c000
> (XEN) CPU5: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05
> (XEN) Booting processor 6/20 eip 8c000
> (XEN) CPU6: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05
> (XEN) Booting processor 7/22 eip 8c000
> (XEN) CPU7: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05
> (XEN) Booting processor 8/1 eip 8c000
> (XEN) CPU8: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05
> (XEN) Booting processor 9/3 eip 8c000
> (XEN) CPU9: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05
> (XEN) Booting processor 10/5 eip 8c000
> (XEN) CPU10: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05
> (XEN) Booting processor 11/7 eip 8c000
> (XEN) CPU11: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05
> (XEN) Booting processor 12/17 eip 8c000
> (XEN) CPU12: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05
> (XEN) Booting processor 13/19 eip 8c000
> (XEN) CPU13: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05
> (XEN) Booting processor 14/21 eip 8c000
> (XEN) CPU14: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05
> (XEN) Booting processor 15/23 eip 8c000
> (XEN) CPU15: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05
> (XEN) Total of 16 processors activated.
> (XEN) ENABLING IO-APIC IRQs
> (XEN)  -> Using new ACK method
> (XEN) checking TSC synchronization across 16 CPUs: passed.
> (XEN) Platform timer is 3.579MHz ACPI PM Timer
> (XEN) Brought up 16 CPUs
> (XEN) I/O virtualisation disabled
> (XEN) CPUIDLE: disabled due to no HPET. Force enable with 'cpuidle'.
> (XEN) *** LOADING DOMAIN 0 ***
> (XEN)  Xen  kernel: 64-bit, lsb, compat32
> (XEN)  Dom0 kernel: 64-bit, lsb, paddr 0xffffffff80200000 ->
> 0xffffffff8075550c
> (XEN) PHYSICAL MEMORY ARRANGEMENT:
> (XEN)  Dom0 alloc.:   000000062c000000->000000062e000000 (188416 pages to be
> allocated)
> (XEN) VIRTUAL MEMORY ARRANGEMENT:
> (XEN)  Loaded kernel: ffffffff80200000->ffffffff8075550c
> (XEN)  Init. ramdisk: ffffffff80756000->ffffffff8101f800
> (XEN)  Phys-Mach map: ffffffff81020000->ffffffff811a0000
> (XEN)  Start info:    ffffffff811a0000->ffffffff811a04b4
> (XEN)  Page tables:   ffffffff811a1000->ffffffff811ae000
> (XEN)  Boot stack:    ffffffff811ae000->ffffffff811af000
> (XEN)  TOTAL:         ffffffff80000000->ffffffff81400000
> (XEN)  ENTRY ADDRESS: ffffffff80200000
> (XEN) Dom0 has maximum 16 VCPUs
> (XEN) Scrubbing Free RAM:
> ...........................................................................................................................................................................................................................................done.
> (XEN) Xen trace buffers: disabled
> (XEN) Std. Loglevel: Errors and warnings
> (XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
> (XEN) Xen is relinquishing VGA console.
> (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to
> Xen)
> (XEN) Freed 128kB init memory.
>
>
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>

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