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Date:      Fri, 12 Sep 2025 15:31:33 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 289297] Intel Xeon 6 with high number of threads
Message-ID:  <bug-289297-227-cFHX3QXGTW@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-289297-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=289297

John Baldwin <jhb@FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jhb@FreeBSD.org

--- Comment #6 from John Baldwin <jhb@FreeBSD.org> ---
The first panic looks like a bug in em(4) and/or iflib where it tries to free a
resource that hasn't been allocated.  I wonder if the relevant structure isn't
allocated with M_ZERO and iflib sees the 0xdeadc0de junk as non-NULL and tries
to use it as a struct resource pointer.

The second panic is also in iflib, perhaps not handling kern.smp.disabled=1
correctly?

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