[jira] [Created] (TS-2249) make check failed on test_AIO.cc:494: undefined reference to `cache_config_threads_per_disk'

["Yunkai Zhang (JIRA)" <ji...@apache.org>]

Yunkai Zhang created TS-2249:
--------------------------------

             Summary: make check failed on test_AIO.cc:494: undefined reference to `cache_config_threads_per_disk'
                 Key: TS-2249
                 URL: https://issues.apache.org/jira/browse/TS-2249
             Project: Traffic Server
          Issue Type: Bug
          Components: Core
            Reporter: Yunkai Zhang


Compiles ATS master branch with:
{code}
[qiushu.zyk@dev163005 trafficserver]$ pwd
/home/qiushu.zyk/trafficserver
[qiushu.zyk@dev163005 trafficserver]$ ./configure --enable-layout=Gentoo --with-user=ats --with-group=ats --enable-experimental-plugins --enable-wccp --disable-debug --enable-linux-native-aio --enable-reclaimable-freelist --enable-interim-cache
{code}

*make check* failed on test_AIO.cc:494: undefined reference to `cache_config_threads_per_disk':
{code}
[qiushu.zyk@dev163005 aio]$ pwd
/home/qiushu.zyk/trafficserver/iocore/aio
[qiushu.zyk@dev163005 aio]$ make check
make  test_AIO
make[1]: Entering directory `/home/qiushu.zyk/trafficserver/iocore/aio'
  CXX    test_AIO-test_AIO.o
  CXXLD  test_AIO
test_AIO-test_AIO.o: In function `main':
/home/qiushu.zyk/trafficserver/iocore/aio/test_AIO.cc:494: undefined reference to `cache_config_threads_per_disk'
collect2: ld returned 1 exit status
make[1]: *** [test_AIO] Error 1
make[1]: Leaving directory `/home/qiushu.zyk/trafficserver/iocore/aio'
make: *** [check-am] Error 2
{code}

Use following patch can solve *undefined error*:
{code}
[qiushu.zyk@dev163005 aio]$ git diff
diff --git a/iocore/aio/test_AIO.cc b/iocore/aio/test_AIO.cc
index 817d8a2..22d06a4 100644
--- a/iocore/aio/test_AIO.cc
+++ b/iocore/aio/test_AIO.cc
@@ -135,7 +135,7 @@ volatile int n_accessors = 0;
 int orig_n_accessors;
 AIO_Device *dev[MAX_DISK_THREADS];
 
-extern RecInt cache_config_threads_per_disk;
+RecInt cache_config_threads_per_disk;
 
 int write_after = 0;
 int write_skip = 0;
{code}

After applied above patch, *make check* will also fail:
{code}
[qiushu.zyk@dev163005 aio]$ make check
make  test_AIO
make[1]: Entering directory `/home/qiushu.zyk/trafficserver/iocore/aio'
  CXX    test_AIO-test_AIO.o
  CXXLD  test_AIO
make[1]: Leaving directory `/home/qiushu.zyk/trafficserver/iocore/aio'
make  check-TESTS
make[1]: Entering directory `/home/qiushu.zyk/trafficserver/iocore/aio'
reading disk_size = 1
reading hotset_size = 1
reading hotset_frequency = 0.5
reading run_time = 30
reading threads_per_disk = 1
reading touch_data = 1
reading seq_read_percent = 0.5
reading seq_write_percent = 0.3
reading rand_read_percent = 0.2
reading seq_read_size = 131072
reading seq_write_size = 4093
reading rand_read_size = 4096
reading write_skip = 5
reading chains = 1
reading delete_disks = 1
reading disk_path = ./aio.tst
Starting hotset document writing 
/bin/sh: line 5: 20105 Segmentation fault      (core dumped) ${dir}$tst
FAIL: test_AIO.sample
=============================================
1 of 1 test failed
Please report to dev@trafficserver.apache.org
=============================================
make[1]: *** [check-TESTS] Error 1
make[1]: Leaving directory `/home/qiushu.zyk/trafficserver/iocore/aio'
make: *** [check-am] Error 2
{code}

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