Re: [PATCH] VMI: remove CONFIG_DEBUG_PAGE_TYPE and associated bitrotted code

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Zachary Amsden wrote:
I'd rather keep it, even with bitrot - it was non-trivial to get correct, and found many surprises in the code; most notably, it can detect

1) PTE writes to pages not declared as page tables
2) Failure to allocate or de-allocate page tables using the paravirt-ops API
3) PTE writes using the wrong level operations

These are most useful properties; in fact, I would like to extend the code for 64-bit paravirt-ops and 4-level paging, so rather not kill it until then.

I never merged the whole bit upstream because it added a field to struct page.

Hm, is that a big problem? It would be OK for a debug config option, wouldn't it? Also, it doesn't seem particularly vmi-specific. Could it be made part of the pvops infrastructure?

   J
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux