Re: BUG: about flush TLB during unmapping a page in memory subsystem

[yunfeng zhang]

Maybe, the solution is below

...
// >>> ptep_clear((__vma)->vm_mm, __address, __ptep);
// >>> flush_tlb_page(__vma, __address);
// >>> __ptep;
...

And even so, we also get a pte with present = 0 AND its dirty = 1, an odd pte.

Remember B dirtied the pte before A executes flush_tlb_page.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/