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Subject: [Bug 217740] netfront: cannot release all resources after adding and
 removing NICs time and again
Date: Mon, 13 Mar 2017 11:38:27 +0000
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X-Bugzilla-Product: Base System
X-Bugzilla-Component: kern
X-Bugzilla-Version: 10.3-RELEASE
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: Affects Some People
X-Bugzilla-Who: ouyangzhaowei@huawei.com
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D217740

            Bug ID: 217740
           Summary: netfront: cannot release all resources after adding
                    and removing NICs time and again
           Product: Base System
           Version: 10.3-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: ouyangzhaowei@huawei.com

On xen,freebsd 10.3 virtual machines hang after adding and removing NICs ti=
me=20
and again(more than 30 times).
I found error log is as follows:
"netfront can't alloc tx grant refs"

--=20
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