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Date:      Wed, 22 Feb 2017 18:14:36 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 217299] Periodic Kernel Panic with FreeBSD 10.3-RELEASE and Myricom cards.
Message-ID:  <bug-217299-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D217299

            Bug ID: 217299
           Summary: Periodic Kernel Panic with FreeBSD 10.3-RELEASE and
                    Myricom cards.
           Product: Base System
           Version: 10.3-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: mshirk@daemon-security.com

In working with members of the Bro community that run FreeBSD, an issue was
brought to my attention with a user running a large setup of FreeBSD systems
running Bro NSM. The issue appears to be between FreeBSD and Myricom.

Myricom support has stated this is a known issue in FreeBSD. I am submitting
this bug on behalf of Keith (attached as a CC to this bug) to try to figure
this out.=20

He is not able to catch the kernel panic, but below are syslog messages that
lead up to the panic.

Sep 30 06:23:11 gulp9 devd: Processing event '!system=3DDEVFS subsystem=3DC=
DEV
type=3DCREATE cdev=3Dmyri_fake.1048575'
Sep 30 06:23:11 gulp9 devd: Pushing table
Sep 30 06:23:11 gulp9 devd: Processing notify event
Sep 30 06:23:11 gulp9 devd: Popping table
Sep 30 06:23:12 gulp9 dev 0xfffff80139c8b400 (myri_fake.0) is on clonelist
Sep 30 06:23:12 gulp9 unit=3D0, low=3D1048576, extra=3D0x0
Sep 30 06:23:12 gulp9   0xfffff80139c8b400 myri_fake.0
Sep 30 06:23:12 gulp9   0xfffff8022dbb2000 myri_fake.1
Sep 30 06:23:12 gulp9   0xfffff8022dd00800 myri_fake.2
Sep 30 06:23:12 gulp9   0xfffff801a7244c00 myri_fake.3
Sep 30 06:23:12 gulp9   0xfffff801a7243000 myri_fake.4
Sep 30 06:23:12 gulp9   0xfffff80139650e00 myri_fake.5
Sep 30 06:23:12 gulp9   0xfffff80139bebe00 myri_fake.6
Sep 30 06:23:12 gulp9   0xfffff801390f1200 myri_fake.7
Sep 30 06:23:12 gulp9   0xfffff8013904cc00 myri_fake.8

Basically the myri_counters tool tries to open several devices that don=E2=
=80=99t exist
in an attempt to find the device for this NIC.  Each failed open raises a
CREATE event.  Like clockwork, the box will panic after a few weeks.  Every=
 box
in the cluster will panic in roughly the order they were booted.  He has not
found a way to configure devfs to just ignore these events. In the Bro sens=
e,
the cluster is a group of servers setup as worker nodes, with the function =
of
processing up do 10Gb/s of network traffic for network monitoring.=20

Keith is currently running 10.3-RELEASE-p7 (when I received the info), and =
he
is looking to do a test with FreeBSD 11.0-RELEASE. The same Myricom card did
not exhibit this issue on FreeBSD 9.

(additional details about the hardware are available from Keith).

--=20
You are receiving this mail because:
You are the assignee for the bug.=



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