linux-kernel - Re: perf not capturing stack traces

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Message-ID: <20150123195340.GF26557@saruman.tx.rr.com>
Date:	Fri, 23 Jan 2015 13:53:40 -0600
From:	Felipe Balbi <balbi@...com>
To:	Felipe Balbi <balbi@...com>
CC:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Tony Lindgren <tony@...mide.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux ARM Kernel Mailing List 
	<linux-arm-kernel@...ts.infradead.org>,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>
Subject: Re: perf not capturing stack traces

Hi,

On Fri, Jan 23, 2015 at 01:51:28PM -0600, Felipe Balbi wrote:
> Hi,
> 
> I'm using v3.19-rc5 on an ARM Cortex A9 board. Unfortunately, perf is
> not able to capture any stack traces even though I CONFIG_STACKTRACE,
> CONFIG_FRAME_POINTER and CONFIG_ARM_UNWIND all enabled.
> 
> I wonder if anybody else is facing similar issues.
> 
> Here's console grab:

perf features:

Auto-detecting system features:
...                         dwarf: [ on  ]
...                         glibc: [ on  ]
...                          gtk2: [ OFF ]
...                      libaudit: [ on  ]
...                        libbfd: [ on  ]
...                        libelf: [ on  ]
...                       libnuma: [ OFF ]
...                       libperl: [ on  ]
...                     libpython: [ on  ]
...                      libslang: [ on  ]
...                     libunwind: [ on  ]
...            libdw-dwarf-unwind: [ on  ]
...                          zlib: [ on  ]
...     DWARF post unwind library: libunwind

-- 
balbi

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