Comment # 59 on bug 1044294 from Ralf M�ller

(In reply to Johannes Thumshirn from comment #58)
> (In reply to Holger Schranz from comment #57)
> > Hello @ all,
> > 
> > after some times now I can say it runs more stable than before with proposal
> > of a fix from Ralf.
> > 
> > A similar issue occured after an timeout onto a connection after 500 sec..
> > A very rare situation.
> > 
> > How to continue with this issue now? 
> > What about the proposal for a fix from Ralf?
> 
> Ralf, can you please send to patch upstream (to the linux-scsi mailing-list
> the open-fcoe list is defunct).

Hi Johannes,
sorry for the long delay ...
First, the modification:

diff /usr/src/linux-4.4.114-42/drivers/scsi/fcoe/fcoe_ctlr.c fcoe_ctlr.c
2179c2179
<       rcu_read_lock();
---
>       mutex_lock(&lport->disc.disc_mutex);
2186,2187d2185
<       rcu_read_unlock();
<       mutex_lock(&lport->disc.disc_mutex);
2717c2715
<       rcu_read_lock();
---
>       mutex_lock(&lport->disc.disc_mutex);
2738c2736
<       rcu_read_unlock();
---
>       mutex_unlock(&lport->disc.disc_mutex);
3085,3086d3082
<       mutex_unlock(&disc->disc_mutex);
<       rcu_read_lock();
3095c3091
<       rcu_read_unlock();
---
>       mutex_unlock(&disc->disc_mutex);

Second:
I have no idea what you mean with 
'can you please send to patch upstream ... '
Can you explain what i should do, please