git » libjio » commit 4c83349

tests/stress: When using libfiu's POSIX wrapper, inject more failures

author Alberto Bertogli
2009-07-04 01:27:50 UTC
committer Alberto Bertogli
2009-07-04 01:27:50 UTC
parent 29d63853f58e0f824c94b1f32199cef57f6632bc
tests/stress: When using libfiu's POSIX wrapper, inject more failures

With this patch it is possible to run the stress test using libfiu's
POSIX preload library to simulate failures in the POSIX functions, and see
how libjio copes with it.

Signed-off-by: Alberto Bertogli <albertito@blitiri.com.ar>
tests/stress/jiostress +12 -6 
diff --git a/tests/stress/jiostress b/tests/stress/jiostress
index 76c3d6b..ac9ade4 100755
--- a/tests/stress/jiostress
+++ b/tests/stress/jiostress
@@ -102,10 +102,14 @@ class Stresser:
 		if pid == 0:
 			# child
 			try:
+				self.fiu_enable()
 				self.randwrite()
+				self.fiu_disable()
 			except IOError:
+				self.fiu_disable()
 				sys.exit(1)
 			except:
+				self.fiu_disable()
 				traceback.print_exc()
 				sys.exit(1)
 			sys.exit(0)
@@ -137,14 +141,19 @@ class Stresser:
 
 	def fiu_enable(self):
 		if self.use_fi:
-			fiu.enable_random('jio/*', probability = 0.02)
+			fiu.enable_random('jio/*', probability = 0.001)
+			fiu.enable_random('linux/*', probability = 0.01)
+			fiu.enable_random('posix/*', probability = 0.01)
+			fiu.enable_random('libc/mm/*', probability = 0.0005)
 
 	def fiu_disable(self):
 		if self.use_fi:
+			fiu.disable('libc/mm/*')
+			fiu.disable('posix/*')
 			fiu.disable('jio/*')
+			fiu.disable('linux/*')
 
 	def run(self):
-		self.fiu_enable()
 		nfailures = 0
 		sys.stdout.write("  ")
 		for i in range(1, self.nops + 1):
@@ -162,14 +171,11 @@ class Stresser:
 				r = self.randwrite()
 			if not r:
 				nfailures += 1
-				self.fiu_disable()
 				r = self.reopen()
-				assert r['total'] <= 1
-				self.fiu_enable()
+				assert r['total'] <= 2
 			self.verify()
 		sys.stdout.write("\n")
 		sys.stdout.flush()
-		self.fiu_disable()
 		return nfailures