From: Joakim Tjernlund <joakim.tjernlund@transmode.se>
To: Willy Tarreau <w@1wt.eu>
Cc: Scott Wood <scottwood@freescale.com>,
linuxppc-dev <linuxppc-dev@ozlabs.org>,
Dan Malek <ppc6dev@digitaldans.com>
Subject: Re: [PATCH 00/14] Backport 8xx TLB to 2.4
Date: Wed, 8 Feb 2012 12:39:50 +0100 [thread overview]
Message-ID: <OFE7D02EF5.C8AA7552-ONC125799E.0037BB62-C125799E.0040126D@transmode.se> (raw)
In-Reply-To: <20120208094426.GC1379@1wt.eu>
Willy Tarreau <w@1wt.eu> wrote on 2012/02/08 10:44:26:
>
> Hi Joakim,
>
> On Wed, Feb 08, 2012 at 09:44:18AM +0100, Joakim Tjernlund wrote:
> > Willy Tarreau <w@1wt.eu> wrote on 2011/12/11 18:33:46:
> > >
> > > Hi Joakim,
> > >
> > > On Sun, Dec 11, 2011 at 06:19:54PM +0100, Joakim Tjernlund wrote:
> > > > > To: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
> > > > > From: Willy Tarreau <w@1wt.eu>
> > > > >
> > > > > Hi Joakim, On Mon, Oct 10, 2011 at 01:30:06PM +0200, Joakim Tjernlund wrote: > This is a
> > > > > backport from 2.6 which I did to overcome 8xx CPU > bugs. 8xx does not update the DAR register
> > > > > when taking a TLB > error caused by dcbX and icbi insns which makes it very > tricky to use these
> > > > > insns. Also the dcbst wrongly sets the > the store bit when faulting into DTLB error. > A few
> > > > > more bugs very found during development. > > I know 2.4 is in strict maintenance mode and 8xx is
> > > > > obsolete > but as it is still in use I wanted 8xx to age with grace. Thank you. I must admit I
> > > > > was hoping those patches would come in for a last release before the end of the year :-) Unless
> > > > > there is any objection from anyone, I'll merge them when kernel.org is back online. Cheers,
> > > > > Willy
> > > >
> > > > Did this go anywhere?
> > >
> > > Not yet, I just need to find some time to release another 2.4 with these
> > > patches.
> >
> > Ping? There should be a tree somewhere by now :)
>
> I'm planning on doing 2.4.37.12 once I'm finished with 2.6.27.60. However I'll
> have to find another place to host it, as the 2.4 tree was never completely
> recovered from master.kernel.org after the break-in, and admins there have
> many more important things to do than to spend their time restoring the 2.4
> files. Probably that I'll put that into my account.
I see.
>
> BTW, since you're asking, you seem to still be using 2.4. Do you think it's
> worth pursuing maintenance over 2.4.37.12 and if so for how long ? I'm asking
> because until the break-in, I felt like almost nobody was using it anymore,
> but since the break-in, I received a number of mails asking where to download
> it. So now I assume that there are still users, but they're too much silent.
yes, they are silent I guess. I figure, after 2.4.37.12, a public git tree
on kernel org which still receives fixes would be enough.
Jocke
next prev parent reply other threads:[~2012-02-08 11:39 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-10 11:30 [PATCH 00/14] Backport 8xx TLB to 2.4 Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 01/14] 8xx: Use a macro to simpliy CPU6 errata code Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 02/14] 8xx: Tag DAR with 0x00f0 to catch buggy instructions Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 03/14] 8xx: invalidate non present TLBs Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 04/14] 8xx: Fix CONFIG_PIN_TLB Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 05/14] 8xx: Update TLB asm so it behaves as linux mm expects Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 06/14] 8xx: Fixup DAR from buggy dcbX instructions Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 07/14] 8xx: CPU6 errata make DTLB error too big to fit Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 08/14] 8xx: Add missing Guarded setting in DTLB Error Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 09/14] 8xx: Restore _PAGE_WRITETHRU Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 10/14] 8xx: Set correct HW pte flags in DTLB Error too Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 11/14] 8xx: start using dcbX instructions in various copy routines Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 12/14] 8xx: Use symbolic constants in TLB asm Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 13/14] 8xx: Optimize TLB Miss handlers Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 14/14] 8xx: The TLB miss handler manages ACCESSED correctly Joakim Tjernlund
2011-10-10 12:30 ` [PATCH 00/14] Backport 8xx TLB to 2.4 Willy Tarreau
2011-12-11 17:19 ` Joakim Tjernlund
2011-12-11 17:33 ` Willy Tarreau
2012-02-08 8:44 ` Joakim Tjernlund
2012-02-08 9:44 ` Willy Tarreau
2012-02-08 11:39 ` Joakim Tjernlund [this message]
2012-02-08 12:26 ` Willy Tarreau
2012-04-09 13:08 ` Willy Tarreau
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