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Date:   Wed, 13 Jun 2018 16:58:01 -0300
From:   Arnaldo Carvalho de Melo <>
To:     Ravi Bangoria <>
Cc:     Sandipan Das <>,,,,
Subject: Re: [PATCH] perf report powerpc: Fix crash if callchain is empty

Em Tue, Jun 12, 2018 at 09:28:09AM +0530, Ravi Bangoria escreveu:
> On 06/11/2018 04:10 PM, Sandipan Das wrote:
> > For some cases, the callchain provided by the kernel may be
> > empty. So, the callchain ip filtering code will cause a crash
> > if we do not check whether the struct ip_callchain pointer is
> > NULL before accessing any members.
> > Reported-by: Ravi Bangoria <>
> Acked-by: Ravi Bangoria <>


- Arnaldo

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