On 04/25/2018 09:44 AM, Max Reitz wrote:
> Here's what you do:
> (1) Create a 513 TB image with cluster_size=2M,refcount_bits=1
> (2) Take a hex editor and enter 16 refblocks into the reftable
> (3) Fill all of those refblocks with 1s
>
> (Funny side note: qemu-img check thinks that image is clea
On 04/25/2018 09:44 AM, Max Reitz wrote:
> On 2018-04-24 00:33, Eric Blake wrote:
>> Our code was already checking that we did not attempt to
>> allocate more clusters than what would fit in an INT64 (the
>> physical maximimum if we can access a full off_t's worth of
s/maximimum/maximum/
>> data)
On 2018-04-24 00:33, Eric Blake wrote:
> Our code was already checking that we did not attempt to
> allocate more clusters than what would fit in an INT64 (the
> physical maximimum if we can access a full off_t's worth of
> data). But this does not catch smaller limits enforced by
> various spots
Our code was already checking that we did not attempt to
allocate more clusters than what would fit in an INT64 (the
physical maximimum if we can access a full off_t's worth of
data). But this does not catch smaller limits enforced by
various spots in the qcow2 image description: L1 and normal
clu
