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Re: cf9bafc: MDEV-14815 - Server crash or AddressSanitizer errors or valgrind warnings

 

Hi, Sergey!

On Oct 19, Sergey Vojtovich wrote:
> > > diff --git a/sql/ha_partition.cc b/sql/ha_partition.cc
> > > index 0488ebf..02de92a 100644
> > > --- a/sql/ha_partition.cc
> > > +++ b/sql/ha_partition.cc
> > > @@ -3907,9 +3907,14 @@ THR_LOCK_DATA **ha_partition::store_lock(THD *thd,
> > >    }
> > >    else
> > >    {
> > > -    for (i= bitmap_get_first_set(&(m_part_info->lock_partitions));
> > > +    MY_BITMAP *used_partitions= lock_type == TL_UNLOCK ||
> > > +                                lock_type == TL_IGNORE ?
> > 
> > why TL_IGNORE too? external_lock only checks for TL_UNLOCK.
> external_lock() checks for F_UNLCK, which is different namespace.

oops. indeed. my mistake, sorry.

> TL_IGNORE is something very hard to follow. In this particular case it
> is called exactly by FLUSH TABLES, when it collects list of locks for
> tables to be re-locked. FWICT we can't catch TL_IGNORE in this else
> branch otherwise.

I see, thanks. Ok to push

Regards,
Sergei
Chief Architect MariaDB
and security@xxxxxxxxxxx


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