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From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Nicholas Piggin <npiggin@gmail.com>, linuxppc-dev@lists.ozlabs.org
Cc: Paul Mackerras <paulus@samba.org>, Nicholas Piggin <npiggin@gmail.com>
Subject: Re: [1/3] powerpc/smp: Fix NMI IPI timeout
Date: Fri, 22 Feb 2019 20:47:33 +1100 (AEDT)	[thread overview]
Message-ID: <445RMn2bwWz9s9y@ozlabs.org> (raw)
In-Reply-To: <20181126020107.17250-2-npiggin@gmail.com>

On Mon, 2018-11-26 at 02:01:05 UTC, Nicholas Piggin wrote:
> The NMI IPI timeout logic is broken, if __smp_send_nmi_ipi times out
> on the first condition, delay_us will be zero which will send it into
> the second spin loop with no timeout so it will spin forever.
> 
> Fixes: 5b73151fff63 ("powerpc: NMI IPI make NMI IPIs fully sychronous")
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>

Series applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/1b5fc84aba170bdfe3533396ca9662ce

cheers

  reply	other threads:[~2019-02-22  9:55 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-26  2:01 [PATCH 0/3] Fix NMI IPI timeouts Nicholas Piggin
2018-11-26  2:01 ` [PATCH 1/3] powerpc/smp: Fix NMI IPI timeout Nicholas Piggin
2019-02-22  9:47   ` Michael Ellerman [this message]
2018-11-26  2:01 ` [PATCH 2/3] powerpc/smp: Fix NMI IPI xmon timeout Nicholas Piggin
2018-11-26  2:01 ` [PATCH 3/3] powerpc/smp: __smp_send_nmi_ipi static Nicholas Piggin

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