[solved] grsecurity-3.1-4.9.8-201702060653 kvm guest system not booting

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[solved] grsecurity-3.1-4.9.8-201702060653 kvm guest system not booting

Postby quasar366 » Tue Feb 07, 2017 3:55 am

Hello there,

the newest grsec test patch is working fine on a physical machine, but with a kvm guest machine it stops booting at the first second without any related logs ..

OS: Ubuntu 16.04 LTS 64Bit
gcc: gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4)

regards
Last edited by quasar366 on Mon Feb 13, 2017 7:00 am, edited 1 time in total.
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Re: grsecurity-3.1-4.9.8-201702060653 kvm guest system not booting

Postby PaX Team » Tue Feb 07, 2017 6:22 am

we are already working on this problem which is caused by some missed instrumentation and type mismatches in the paravirt code that will need some surgery to fix properly. if you can live without PARAVIRT, disable it in the meantime.
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Re: grsecurity-3.1-4.9.8-201702060653 kvm guest system not booting

Postby kolargol » Thu Feb 09, 2017 8:47 am

is it related: viewtopic.php?f=3&t=4665 ?
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Re: grsecurity-3.1-4.9.8-201702060653 kvm guest system not booting

Postby PaX Team » Sun Feb 12, 2017 4:47 pm

i've fixed the PARAVIRT related boot problems in the latest patch.
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