Re: [PATCH-v3.10.y] iscsi-target: Fix iscsit_start_kthreads failure OOPs

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, 2015-08-13 at 17:57 -0700, Greg-KH wrote:
> On Thu, Aug 13, 2015 at 05:48:26PM -0700, Nicholas A. Bellinger wrote:
> > On Thu, 2015-08-13 at 17:45 -0700, Greg-KH wrote:
> > > On Thu, Aug 13, 2015 at 08:12:10PM +0000, Nicholas A. Bellinger wrote:
> > > > From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
> > > > 
> > > > This patch fixes a regression introduced with the following commit
> > > > in v4.0-rc1 code, where a iscsit_start_kthreads() failure triggers
> > > > a NULL pointer dereference OOPs:
> > > > 
> > > >     commit 88dcd2dab5c23b1c9cfc396246d8f476c872f0ca
> > > >     Author: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
> > > >     Date:   Thu Feb 26 22:19:15 2015 -0800
> > > > 
> > > >         iscsi-target: Convert iscsi_thread_set usage to kthread.h
> > > > 
> > > > To address this bug, move iscsit_start_kthreads() immediately
> > > > preceeding the transmit of last login response, before signaling
> > > > a successful transition into full-feature-phase within existing
> > > > iscsi_target_do_tx_login_io() logic.
> > > > 
> > > > This ensures that no target-side resource allocation failures can
> > > > occur after the final login response has been successfully sent.
> > > > 
> > > > Also, it adds a iscsi_conn->rx_login_comp to allow the RX thread
> > > > to sleep to prevent other socket related failures until the final
> > > > iscsi_post_login_handler() call is able to complete.
> > > > 
> > > >     Issue DAT-3610
> > > > 
> > > > Change-Id: Ie41cd45dba698d4984ca711a56e4ffd3bb32ca6d
> > > 
> > > What is that here for?  
> > > 
> > 
> > Ugh sorry, forgot to strip off these internal tags.
> > 
> > > I need to know the git commit id in Linus's tree, I guess I have to go
> > > dig it out now...
> > 
> > That would be:
> > 
> >   commit e54198657b65625085834847ab6271087323ffea
> >   Author: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
> >   Date:   Wed Jul 22 23:14:19 2015 -0700
> > 
> >       iscsi-target: Fix iscsit_start_kthreads failure OOPs
> 
> Ah crap, I picked e54198657b65625085834847ab6271087323ffea.  Let me go
> delete the patches I just queued up and try it again...
> 

e54198657b65625085834847ab6271087323ffea is the correct upstream commit.

--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]