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51a16c1e88
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John Stultz 51a16c1e88 selftest: Timers: Avoid signal deadlock in leap-a-day 
In 0c4a5fc95b (Add leap-second timer edge testing to
leap-a-day.c), we added a timer to the test which checks to make
sure timers near the leapsecond edge behave correctly.

However, the output generated from the timer uses ctime_r, which
isn't async-signal safe, and should that signal land while the
main test is using ctime_r to print its output, its possible for
the test to deadlock on glibc internal locks.

Thus this patch reworks the output to avoid using ctime_r in
the signal handler.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jiri Bohac <jbohac@suse.cz>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/r/1434565003-3386-1-git-send-email-john.stultz@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-06-18 15:28:14 +02:00
..
build tools build: Add feature check for lzma library 2015-03-21 14:53:39 -03:00
cgroup
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: Remove bitops/hweight usage of bits in tools/perf 2015-01-16 17:49:29 -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 Merge branch 'liblockdep-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux into perf/urgent 2015-05-15 08:43:15 +02:00
net tools: bpf_asm: cleanup vlan extension related token 2015-03-24 21:21:41 -04:00
nfsd
perf perf tools: Use getconf to determine number of online CPUs 2015-05-12 18:11:16 -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 selftest: Timers: Avoid signal deadlock in leap-a-day 2015-06-18 15:28:14 +02:00
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/liblockdep: Build liblockdep from tools/Makefile 2014-05-08 13:34:45 -04:00