Messages in this thread | | | Date | Tue, 17 Apr 2018 18:28:01 +0300 | From | Aaro Koskinen <> | Subject | Re: 4.17-rc1: early boot crash on x86_64 & pti |
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Hi,
On Tue, Apr 17, 2018 at 06:01:30PM +0300, Aaro Koskinen wrote: > I'm getting early crash on x86_64 box with 4.17-rc1 and PTI > enabled. Bisected to: > > commit 39114b7a743e6759bab4d96b7d9651d44d17e3f9 > Author: Dave Hansen <dave.hansen@linux.intel.com> > Date: Fri Apr 6 13:55:17 2018 -0700 > > x86/pti: Never implicitly clear _PAGE_GLOBAL for kernel image
[...]
> [ 0.000000] Kernel/User page tables isolation: enabled > [ 0.000000] ------------[ cut here ]------------ > [ 0.000000] CPA: called for zero pte. vaddr = ffffffff8d000000 cpa->vaddr = ffffffff8d000000 > [ 0.000000] WARNING: CPU: 0 PID: 0 at arch/x86/mm/pageattr.c:1189 __cpa_process_fault+0x4d6/0x510
I started enabling more .config options, and it seems that enabling CONFIG_XEN_PV does some magic to make booting work... But I shouldn't need it.
A.
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