linux/tools
Kan Liang 930e6fcd2b perf tools: Add time out to force stop proc map processing
System wide sampling like 'perf top' or 'perf record -a' read all
threads /proc/xxx/maps before sampling. If there are any threads which
generating a keeping growing huge maps, perf will do infinite loop
during synthesizing. Nothing will be sampled.

This patch fixes this issue by adding per-thread timeout to force stop
this kind of endless proc map processing.

PERF_RECORD_MISC_PROC_MAP_PARSE_TIME_OUT is introduced to indicate that
the mmap record are truncated by time out. User will get warning
notification when truncated mmap records are detected.

Reported-by: Ying Huang <ying.huang@intel.com>
Signed-off-by: Kan Liang <kan.liang@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ying Huang <ying.huang@intel.com>
Link: http://lkml.kernel.org/r/1434549071-25611-1-git-send-email-kan.liang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-19 18:20:15 -03:00
..
arch tools include: Add basic atomic.h implementation from the kernel sources 2015-05-08 16:11:05 -03:00
build perf build: Do not fail on missing Build file 2015-05-29 12:44:25 -03:00
cgroup cgroups: fix cgroup_event_listener error handling 2013-01-08 10:00:44 -08:00
firewire
hv hv: hypervvssd: call endmntent before call setmntent again 2015-03-25 11:53:54 +01:00
iio tools: iio: generic_buffer: Fix generic scale extraction 2015-03-28 11:01:49 +00:00
include tools: Move tools/perf/util/include/linux/{list.h,poison.h} to tools/include 2015-06-02 19:07:29 -03:00
lguest tools/lguest: don't use legacy definitions for net device in example launcher. 2015-02-13 17:15:55 +10:30
lib tools lib traceevent: Ignore libtrace-dynamic-list file 2015-06-08 10:30:32 -03:00
net tools: bpf_asm: cleanup vlan extension related token 2015-03-24 21:21:41 -04:00
nfsd
perf perf tools: Add time out to force stop proc map processing 2015-06-19 18:20:15 -03:00
power More power management and ACPI updates for v4.1-rc1 2015-04-26 13:56:35 -07:00
scripts tools lib traceevent: Add global QUIET_CC_FPIC build output 2013-12-19 16:18:10 -03:00
testing linux-kselftest-4.1-rc4 2015-05-16 15:03:52 -07:00
thermal/tmon tools/thermal: tmon: fixed the 'make install' command 2015-05-09 13:36:58 +08:00
time tools: add script to test udelay 2014-07-23 10:16:38 -07:00
usb tools: ffs-aio-example: use endpoint addresses from descriptors 2015-01-15 09:41:49 -06:00
virtio tools/virtio: add virtio 1.0 in vringh_test 2014-12-15 23:49:22 +02:00
vm tools: Fix tools/vm build 2015-05-12 18:11:06 -03:00
Makefile tools build: Fix Makefile(s) to properly invoke tools build 2015-04-29 10:37:46 -03:00