Linus Torvalds writes: (Summary) wrote:
I suspect it's the global bit stuff that came in very late in the merge window, and had been developed and tested for a while before, but showed some problems under some configs.
but showed some problems under some configs.
The fix is currently in the x86/pti tree in -tip, see: The fix is currently in the x86/pti tree in -tip, see: x86/pti: Fix boot problems from Global-bit setting
x86/pti: Fix boot problems from Global-bit setting
and I expect it will percolate upstream soon.
and I expect it will percolate upstream soon.
In the meantime, it would be good to verify that merging that x86/pti branch fixes it for you?
branch fixes it for you?
There is another candidate for boot problems - do you happen to have CONFIG_DEFERRED_STRUCT_PAGE_INIT enabled?
[...]
rebased/merged with Linus'es tree at v4.17.0-rc1.I suspect it's the global bit stuff that came in very late in the merge window, and had been developed and tested for a while before, but showed some problems under some configs.
but showed some problems under some configs.
The fix is currently in the x86/pti tree in -tip, see: The fix is currently in the x86/pti tree in -tip, see: x86/pti: Fix boot problems from Global-bit setting
x86/pti: Fix boot problems from Global-bit setting
and I expect it will percolate upstream soon.
and I expect it will percolate upstream soon.
In the meantime, it would be good to verify that merging that x86/pti branch fixes it for you?
branch fixes it for you?
There is another candidate for boot problems - do you happen to have CONFIG_DEFERRED_STRUCT_PAGE_INIT enabled?