Red Hat Enterprise Linux 5.5 virtual machines running on AMD based hosts panic on boot
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Red Hat Enterprise Linux 5.5 virtual machines running on AMD based hosts panic on boot


Article ID: 311315


Updated On:


VMware vSphere ESXi


  • Virtual machines running Red Hat Enterprise Linux 5.5 (x86 or x86_64 architectures) on AMD Opteron 6000-series based hosts panic on boot.
  • This crash signature is produced:

    Unable to handle kernel NULL pointer dereference at 0000000000000040 RIP:
    [<ffffffff8008192f>] cpuid4_cache_lookup+0x256/0x356
    PGD 0
    Oops: 0000 [1] SMP
    last sysfs file:
    CPU 0
    Modules linked in:
    Pid: 1, comm: swapper Not tainted 2.6.18-194.el5 #1
    RIP: 0010:[<ffffffff8008192f>] [<ffffffff8008192f>] cpuid4_cache_lookup+0x256/6
    RSP: 0000:ffff81010fc75d60 EFLAGS: 00010246
    RAX: 0000000000000000 RBX: 0000000000000060 RCX: 00000000000006aa
    RDX: 0000000000000000 RSI: 0000000000000060 RDI: 0000000000000003
    RBP: ffff81010f765580 R08: 0000000000000001 R09: 0000000000000040
    R10: ffff81010fc75cf0 R11: 0000000000000060 R12: 0000000000000080
    R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
    FS: 0000000000000000(0000) GS:ffffffff803cb000(0000) knlGS:0000000000000000
    CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
    CR2: 0000000000000040 CR3: 0000000000201000 CR4: 00000000000006e0
    Process swapper (pid: 1, threadinfo ffff81010fc74000, task ffff81010fc657a0)
    Stack: ffff81010fc75e00 000280000f765ec0 0000000000000000 0000000000000000
    0000000040020140 00000000000000d0 ffff810140020140 0000000000000286
    00000000000006a9 0000000000000000 0000000017c0003f 0000000000000000
    Call Trace:
    [<ffffffff80081c48>] cacheinfo_cpu_callback+0xe9/0x516
    [<ffffffff80081c93>] cacheinfo_cpu_callback+0x134/0x516
    [<ffffffff800820ae>] cache_sysfs_init+0x39/0x54
    [<ffffffff80407a5c>] init+0x1f9/0x2f7
    [<ffffffff8005efb1>] child_rip+0xa/0x11
    [<ffffffff801824cc>] acpi_ds_init_one_object+0x0/0x80
    [<ffffffff80407863>] init+0x0/0x2f7
    [<ffffffff8005efa7>] child_rip+0x0/0x11
    Code: 8b 72 40 48 8d 4c 24 1c 48 8b 7a 20 ba c4 01 00 00 e8 5f 77
    RIP [<ffffffff8008192f>] cpuid4_cache_lookup+0x256/0x356
    RSP <ffff81010fc75d60>
    CR2: 0000000000000040
    <0>Kernel panic - not syncing: Fatal exception


VMware ESX 4.0.x
VMware ESXi 4.0.x Embedded
VMware vSphere ESXi 5.0
VMware ESXi 4.1.x Embedded
VMware ESXi 4.0.x Installable
VMware ESXi 4.1.x Installable
VMware ESX 4.1.x


This is not a VMware issue.
For more information about this issue, see the Redhat Knowledge Base article 37935.

Note: The preceding link was correct as of August 14, 2013. If you find the link is broken, provide feedback and a VMware employee will update the link.

Additional Information