Em Mon, May 11, 2015 at 10:47:34AM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Mon, May 11, 2015 at 08:11:14PM +0800, He Kuang escreveu:
> > >So we can either do the check outside
> > >builtin-trace.c:perf_evlist__mmap_read() like what
> > >builtin-record.c do or inside. What's your opinion?
> >
Em Mon, May 11, 2015 at 08:11:14PM +0800, He Kuang escreveu:
> Hi, Arnaldo
>
> On 2015/4/8 11:15, He Kuang wrote:
> >Hi, Arnaldo
> >On 2015/4/7 20:36, Arnaldo Carvalho de Melo wrote:
> >>Em Tue, Apr 07, 2015 at 05:31:11PM +0800, He Kuang escreveu:
> >>>After perf_evlist__filter_pollfd() filters ou
Hi, Arnaldo
On 2015/4/8 11:15, He Kuang wrote:
Hi, Arnaldo
On 2015/4/7 20:36, Arnaldo Carvalho de Melo wrote:
Em Tue, Apr 07, 2015 at 05:31:11PM +0800, He Kuang escreveu:
After perf_evlist__filter_pollfd() filters out fds and releases
perf_mmap by using perf_evlist__mmap_put(), refcnt of perf_
Hi, Arnaldo
On 2015/4/7 20:36, Arnaldo Carvalho de Melo wrote:
Em Tue, Apr 07, 2015 at 05:31:11PM +0800, He Kuang escreveu:
After perf_evlist__filter_pollfd() filters out fds and releases
perf_mmap by using perf_evlist__mmap_put(), refcnt of perf_mmap hits 1
then perf_evlist__mmap_consume() will
Em Tue, Apr 07, 2015 at 05:31:11PM +0800, He Kuang escreveu:
> After perf_evlist__filter_pollfd() filters out fds and releases
> perf_mmap by using perf_evlist__mmap_put(), refcnt of perf_mmap hits 1
> then perf_evlist__mmap_consume() will do the final unmap. In this
> condition, perf_evlist__mmap_
After perf_evlist__filter_pollfd() filters out fds and releases
perf_mmap by using perf_evlist__mmap_put(), refcnt of perf_mmap hits 1
then perf_evlist__mmap_consume() will do the final unmap. In this
condition, perf_evlist__mmap_read() will crash by referencing invalid
mmap. Put refcnt check befor
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