Package: mcelog
Severity: wishlist

After moving my system to a Xen kernel (linux-image-2.6.18-4-xen-amd64),
the device /dev/mcelog no longer exists and mcelog therefore doesn't
work.  I spent a while tracking this down and eventually discovered that
the kernel has:

    config X86_MCE
        bool "Machine check support" if EMBEDDED
        depends on !X86_64_XEN

in arch/x86_64/Kconfig, which means X86_MCE is always disabled on 
Xen kernels.  Apparently the MCE info is collected by the Xen
hypervisor instead, and errors would appear in "xm dmesg".  It might
be useful to document this in README.Debian so others can avoid 
confusion.

-- System Information:
Debian Release: testing/unstable
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.17.4
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)


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