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-rw-r--r--test/ruby/test_io.rb5
1 files changed, 4 insertions, 1 deletions
diff --git a/test/ruby/test_io.rb b/test/ruby/test_io.rb
index 0b3b5591e35..451f6c246d2 100644
--- a/test/ruby/test_io.rb
+++ b/test/ruby/test_io.rb
@@ -2439,11 +2439,14 @@ End
def test_ioctl_linux
return if /linux/ !~ RUBY_PLATFORM
+ # Alpha, mips, sparc and ppc have an another ioctl request number scheme.
+ # So, hardcoded 0x80045200 may fail.
+ return if /^i.?86|^x86_64/ !~ RUBY_PLATFORM
assert_nothing_raised do
File.open('/dev/urandom'){|f1|
entropy_count = ""
- # get entropy count
+ # RNDGETENTCNT(0x80045200) mean "get entropy count".
f1.ioctl(0x80045200, entropy_count)
}
end