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Message-ID: <20110324185903.GA30510@elte.hu> Date: Thu, 24 Mar 2011 19:59:03 +0100 From: Ingo Molnar <mingo@...e.hu> To: Pekka Enberg <penberg@...nel.org> Cc: Christoph Lameter <cl@...ux.com>, Eric Dumazet <eric.dumazet@...il.com>, torvalds@...ux-foundation.org, akpm@...ux-foundation.org, tj@...nel.org, npiggin@...nel.dk, rientjes@...gle.com, linux-kernel@...r.kernel.org, linux-mm@...ck.org Subject: Re: [GIT PULL] SLAB changes for v2.6.39-rc1 * Pekka Enberg <penberg@...nel.org> wrote: > On Thu, Mar 24, 2011 at 8:47 PM, Christoph Lameter <cl@...ux.com> wrote: > > > > On Thu, 24 Mar 2011, Eric Dumazet wrote: > > > >> > this_cpu_cmpxchg16b_emu: > >> > pushf > >> > cli > >> > > >> > cmpq %gs:(%rsi), %rax > > > >> Random guess > >> > >> Masking interrupts, and accessing vmalloc() based memory for the first > >> time ? > > > > Hmmm.. Could be. KVM would not really disable interrupts so this may > > explain that the test case works here. > > > > Simple fix would be to do a load before the cli I guess. > > Btw, I tried Ingo's .config and it doesn't boot here so it's somehow > .config related. did you get a similar early crash as i? I'd not expect my .config to have all the drivers that are needed on your box. Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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