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Subject: Re: kprobes sanity test fails on next-20190708
To:     Anders Roxell <anders.roxell@linaro.org>
Cc:     naveen.n.rao@linux.ibm.com, anil.s.keshavamurthy@intel.com,
        davem@davemloft.net, mhiramat@kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
References: <20190708141136.GA3239@localhost.localdomain>
From:   James Morse <james.morse@arm.com>
Message-ID: <a19faa89-d318-fe21-9952-b0f842240ba5@arm.com>
Date:   Mon, 8 Jul 2019 16:56:50 +0100
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Hi,

On 08/07/2019 15:11, Anders Roxell wrote:
> argh... resending, with plaintext... Sorry =/
> 
> I tried to build a next-201908 defconfig + CONFIG_KPROBES=y and
> CONFIG_KPROBES_SANITY_TEST=y
> 
> I get the following Call trace, any ideas?
> I've tried tags back to next-20190525 and they also failes... I haven't
> found a commit that works yet.
> 
> [    0.098694] Kprobe smoke test: started
> [    0.102001] audit: type=2000 audit(0.088:1): state=initialized
> audit_enabled=0 res=1
> [    0.104753] Internal error: aarch64 BRK: f2000004 [#1] PREEMPT SMP

This sounds like the issue Mark reported:
https://lore.kernel.org/r/20190702165008.GC34718@lakrids.cambridge.arm.com

It doesn't look like Steve's patch has percolated into next yet:
https://lore.kernel.org/lkml/20190703103715.32579c25@gandalf.local.home/

Could you give that a try to see if this is a new issue?


Thanks,

James