Date: Thu, 24 Sep 2015 08:29:57 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 203303] ISSUE with md vnode device with size mismatch Message-ID: <bug-203303-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203303 Bug ID: 203303 Summary: ISSUE with md vnode device with size mismatch Product: Base System Version: 10.2-STABLE Hardware: Any OS: Any Status: New Severity: Affects Many People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: roberfern@gmail.com We create a 32M file using on a ufs filesystem: dd if=/dev/random of=/tmp/test.file bs=32M count=1 Once a md device is created using the following command: mdconfig -at vnode -f /tmp/test.file -s 64M then, we try to execute the next command: dd if=/dev/md0 of=cpy_test.file bs=16M We get a file that is 64M long. We expected some error after 32M, but the operation succeed. The exceeding 32M of cpy_test.file is the last 16M of the original file repeated twice. More interesting, when we use newfs on the md0 device: newfs /dev/md0 we get that the file "/tmp/test.file" under md0 becomes automatically 64M large. -- You are receiving this mail because: You are the assignee for the bug.
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