Messages in this thread | | | Date | Fri, 19 Jun 2015 16:00:51 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH v6 1/1] x86_64: fix KASan shadow region page tables |
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* Andrey Ryabinin <a.ryabinin@samsung.com> wrote:
> On 06/19/2015 03:06 PM, Borislav Petkov wrote: > > On Fri, Jun 19, 2015 at 02:49:19PM +0300, Andrey Ryabinin wrote: > >> I guess that AMD cpus is more strict (unlike Intel) about violation > >> of reserved/unused bits in page table entries. Please, try with this > >> patch. > > > > With that the guest boots. > > > > Great! Thanks. > > > How do I check whether KASan actually works? I don't see any note in > > dmesg or some file named "*kasan*" in sysfs... > > > > kasan will print report in dmesg whant it will find anything.
It should also printk a one line message at bootup, so that people can be sure they are running a KASan-enabled kernel.
> To make sure that it works you could try to load testing module (CONFIG_TEST_KASAN). > This module has bugs that kasan should catch.
That's a way too obscure mechanism just to determine whether the right kernel config was booted. Please add a printk(), ok?
Thanks,
Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in Please read the FAQ at http://www.tux.org/lkml/
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