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Date:      Thu, 21 Apr 2016 16:29:26 +0200
From:      Hans Petter Selasky <hps@selasky.org>
To:        Justin Clift <justin@postgresql.org>, freebsd-infiniband@freebsd.org
Subject:   Re: Kernel panic (page fault) on 10.3-STABLE with IB & VIMAGE modules
Message-ID:  <5718E3C6.7000602@selasky.org>
In-Reply-To: <E9A17D1C-E1D4-4146-9E0D-63AED575A34E@postgresql.org>
References:  <210EB5F8-DEC1-4F5E-9CC7-003AF3784B50@postgresql.org> <E9A17D1C-E1D4-4146-9E0D-63AED575A34E@postgresql.org>

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On 04/21/16 16:19, Justin Clift wrote:
> On 21 Apr 2016, at 15:16, Justin Clift <justin@postgresql.org> wrote:
>> Hi all,
>>
>> Have been hitting a kernel panic (page fault) with the IB modules loaded
>> on 10.3-STABLE.  (compiled multiple times over the last few days, all panicing)
>>
>> Spent several hours narrowing down the cause, and it's definitely a bad
>> interaction between the IB modules (unsure which) + the "VIMAGE" module.
>
> Forgot to mention, it's 100% reproducible, and very easily.  All that needs
> to be done is have an interface (eg ib0) be in IPoIB mode with an IP assigned.
> (eg 10.10.100.1)
>
> When that interface is pinged from another host (eg "ping 10.10.100.1") the
> kernel panic immediately happens.  Every time. ;)
>

Hi Justin,

Was the ipoib module also built with VIMAGE options defined? I know that 
if you mix code built with and without VIMAGE is not a good idea.

--HPS




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