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Sun Fire X4800 Server Product Notes     Sun Fire X4800 Server Documentation
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Document Information

Using This Documentation

Overview of the Sun Fire X4800 Server Product Notes

Supported Software and Firmware

Hardware Issues

Oracle Solaris 10 Operating System Issues

Linux Issues

False MCE Errors Appear in /var/log/mcelog (CR 7104293)

I/O Does Not Work On SLES11 SP1 with XEN (CR 6965290 and CR7110443)


RHEL6 Kdump Runs Out of Memory (CR 7000993 and CR 7000942)


SLES11 SP1 Does Not Produce A Kdump File After A Crash (CR7001706)


SLES11 Fails to Install On Systems Equipped with 6-Core CMODs (CR 7024769)


Messages Complain of Failure to Allocate I/O Resources (CR 6984329)


Xen Profiler Not Supported in Oracle Linux 5.5 (CR 6839366)

Oracle Linux 5.5 Does Not Support CPU Throttling (CR 6847286)

InfiniBand PCIe Module Does Not Function Correctly With SLES 11 (CR 6909512, CR 6921163)


Bug in Kernel Causes Incorrect MSI Processing (CR 6921163)


LEDs on PCIe ExpressModule Work Incorrectly with Oracle Linux 5.5 (CR 6894954)

Oracle Linux 5.5 Xen Kernel Hangs Due to Long Timeout (CR 6899040)


Oracle Linux 5.5 Issues Xen Warning: Domain attempted WRMSR 0000000000000277 (CR 6902715)

10GbE PCIe Card in 8-Socket System with SLES11 Can Cause Kernel to Crash (CR 6912821)

Workaround 1

Workaround 2

SLES11 with Xen Hangs When Many PCIe ExpressModule Cards Are Installed (CR 6917397)


Oracle VM Issues

Windows Operating System Issues

ESX Issues

Oracle ILOM Enhancements and Issues

Oracle Hardware Installation Assistant Issues

BIOS Issues

Oracle Linux 5.5 Xen Kernel Hangs Due to Long Timeout (CR 6899040)

When booting from a PCIe ExpressModule or a Fabric Expansion Module (FEM), the system might hang because it runs out of MSI interrupt vectors.


  1. In the GRUB configuration, set pci=nomsi.
  2. Boot a non-Xen kernel.
  3. Edit the file /boot/grub/menu.lst.
  4. Add the following text to the Xen kernel init line stanza:

    For example:

    # grub.conf generated by anaconda
    # Note that you do not have to rerun grub after making changes to this file
    # NOTICE:  You have a /boot partition.  This means that
    #          all kernel and initrd paths are relative to /boot/, eg.
    #          root (hd0,0)
    #          kernel /vmlinuz-version ro root=/dev/sda3
    #          initrd /initrd-version.img
    serial --unit=0 --speed=115200
    terminal --timeout=5 serial console
    title Enterprise Linux Server (2.6.18-194.el5xen)
            root (hd0,0)
            kernel /xen.gz-2.6.18-194.el5 com1=115200 console=com1
            module /vmlinuz-2.6.18-194.el5xen ro root=LABEL=/
    console=ttyS0,115200 debug pci=nomsi
            module /initrd-2.6.18-194.el5xen.img
    title Enterprise Linux Server-base (2.6.18-194.el5)
            root (hd0,0)
            kernel /vmlinuz-2.6.18-194.el5 ro root=LABEL=/
    earlylprintk=ttyS0,115200 console=ttyS0,115200 debug
            initrd /initrd-2.6.18-194.el5.img


    Use YAST to add pci=nomsi as a boot parameter.

  5. Reboot the Xen kernel.