Re: PANIC: double fault, error_code: 0x0 in 4.0.0-rc3-2, kvm related?

[Stefan Seyfried]

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
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Stefan Seyfried
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