Re: mm: kernel BUG at mm/rmap.c:530

[Sasha Levin]

On 08/20/2014 10:02 AM, Kirill A. Shutemov wrote:
> Sasha Levin wrote:
>> > Hi all,
>> > 
>> > While fuzzing with trinity inside a KVM tools guest running the latest -next
>> > kernel, I've stumbled on the following spew:
>> > 
>> > [ 2581.180086] kernel BUG at mm/rmap.c:530!
> Page is mapped where it shouldn't be. Or vma/struct page/pgtable is corrupted.
> Basically, I have no idea what happend :-P
> 
> We really should dump page and vma info there. It's strange we don't have
> dump_vma() helper yet.
> 

Okay, so the dump_vma() helper shows:

[  736.842506] vma ffff8808436fdc00 start           (null) end           (null)
[  736.842506] next           (null) prev           (null) mm           (null)
[  736.842506] prot 0 anon_vma           (null) vm_ops           (null)
[  736.842506] pgoff 0 file           (null) private_data           (null)
[  736.846670] flags: 0x0(


Thanks,
Sasha
--
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/