[PATCH 4/5] Fix deadlock in _int_free consistency check

[Florian Weimer]

On 10/12/2017 12:16 PM, Andreas Schwab wrote:
> On Okt 12 2017, Florian Weimer <fweimer@redhat.com> wrote:
> 
>> On 10/12/2017 11:35 AM, Wilco Dijkstra wrote:
>>> This patch fixes a deadlock in the fastbin consistency check.
>>> If we fail the fast check due to concurrent modifications to
>>> the next chunk or system_mem, we should not lock if we already
>>> have the arena lock.  Simplify the check to make it obviously
>>> correct.
>>
>> I don't think the subject line is correct.  What is the deadlock?  I don't
>> see it.
> 
> The problem is that commit 24cffce736 inverted the condition on
> have_lock, which is wrong.

Oh, right, sorry about that.

Thanks,
Florian