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    SubjectRe: PANIC: double fault, error_code: 0x0 in 4.0.0-rc3-2, kvm related?
    Am 18.03.2015 um 22:32 schrieb Linus Torvalds:
    > Is PARAVIRT enabled? The three nop's at the beginning of 'page_fault'
    > makes me suspect it is, and that that is some paravirt rewriting
    > area. What does paravirt go for that USERGS_SYSRET64 (or for
    > SWAPGS_UNSAFE_STACK, for that matter).

    This from the newer kernel package, but I doubt this configuration has
    been changed in the openSUSE kernel:

    susi:~ # grep PARAVIRT /boot/config-4.0.0-rc4-1.g126fc64-desktop
    CONFIG_PARAVIRT=y
    # CONFIG_PARAVIRT_DEBUG is not set
    # CONFIG_PARAVIRT_SPINLOCKS is not set
    # CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
    CONFIG_PARAVIRT_CLOCK=y

    So yes, PARAVIRT is enabled.

    Best regards,

    Stefan
    --
    Stefan Seyfried
    Linux Consultant & Developer -- GPG Key: 0x731B665B

    B1 Systems GmbH
    Osterfeldstraße 7 / 85088 Vohburg / http://www.b1-systems.de
    GF: Ralph Dehner / Unternehmenssitz: Vohburg / AG: Ingolstadt,HRB 3537


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