diff options
| author | Mike Galbraith <efault@gmx.de> | 2009-05-24 08:35:49 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-05-24 08:57:08 +0200 |
| commit | c2990a2a582d73562d4dcf2502c39892a19a691d (patch) | |
| tree | 840d7c137214e3dd1885e07b81f7bef35bbd1aa3 /Documentation/perf_counter | |
| parent | 475c55797323b67435083f6e2eb8ee670f6410ec (diff) | |
perf top: fix segfault
c6eb13 increased stack usage such that perf-top now croaks on startup.
Take event_array and mmap_array off the stack to prevent segfault on boxen
with smallish ulimit -s setting.
Signed-off-by: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: John Kacur <jkacur@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation/perf_counter')
| -rw-r--r-- | Documentation/perf_counter/builtin-top.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Documentation/perf_counter/builtin-top.c b/Documentation/perf_counter/builtin-top.c index a3216a6018c..74021ac90f5 100644 --- a/Documentation/perf_counter/builtin-top.c +++ b/Documentation/perf_counter/builtin-top.c @@ -1035,10 +1035,11 @@ static void mmap_read(struct mmap_data *md) md->prev = old; } +static struct pollfd event_array[MAX_NR_CPUS * MAX_COUNTERS]; +static struct mmap_data mmap_array[MAX_NR_CPUS][MAX_COUNTERS]; + int cmd_top(int argc, char **argv, const char *prefix) { - struct pollfd event_array[MAX_NR_CPUS * MAX_COUNTERS]; - struct mmap_data mmap_array[MAX_NR_CPUS][MAX_COUNTERS]; struct perf_counter_hw_event hw_event; pthread_t thread; int i, counter, group_fd, nr_poll = 0; |