linux-kernel - Re: sparc64, mm BUG in 3.9-rc8

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Message-ID: <alpine.SOC.1.00.1304230019030.12820@math.ut.ee>
Date:	Tue, 23 Apr 2013 00:19:49 +0300 (EEST)
From:	Meelis Roos <mroos@...ux.ee>
To:	David Miller <davem@...emloft.net>
cc:	linux-kernel@...r.kernel.org, sparclinux@...r.kernel.org
Subject: Re: sparc64, mm BUG in 3.9-rc8

> > Hello, I got a non-booting Sun E420R (sparc64) with 3.9-rc8: BUG-s in 
> > mm/slub.c:925 and mm/memory.c:1267 (the latter keeps scrolling until 
> > other things break and panic comes from trying to kill init). This is 
> > reproducible. Same machine runs 3.9.0-rc7-00004-gbb33db7 successfully.
> > Configuration is below.
> 
> It's certainly a bug in the TLB shootdown fix, please verify that
> reverting the following fixes things:
> 
> >From f36391d2790d04993f48da6a45810033a2cdf847 Mon Sep 17 00:00:00 2001
> From: "David S. Miller" <davem@...emloft.net>
> Date: Fri, 19 Apr 2013 17:26:26 -0400
> Subject: [PATCH] sparc64: Fix race in TLB batch processing.

Yes, reverting that makes it work again.

-- 
Meelis Roos (mroos@...ux.ee)
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