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 <Y9B4/pR5t2o51coY@monkey>
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From:   Naresh Kamboju <naresh.kamboju@linaro.org>
Date:   Thu, 2 Feb 2023 20:29:31 +0530
Message-ID: <CA+G9fYvC7RfM7Q+=S8N7dw9A88oa=HFyoDjz4=drSjBwXYYnLQ@mail.gmail.com>
Subject: Re: selftests: memfd: run_hugetlbfs_test.sh - invalid opcode: 0000
 [#1] PREEMPT SMP
To:     Mike Kravetz <mike.kravetz@oracle.com>
Cc:     "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@vger.kernel.org>,
        open list <linux-kernel@vger.kernel.org>,
        linux-stable <stable@vger.kernel.org>,
        lkft-triage@lists.linaro.org,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Shuah Khan <shuah@kernel.org>, Jeff Xu <jeffxu@google.com>,
        Joel Fernandes <joel@joelfernandes.org>,
        Pranith Kumar <bobby.prani@gmail.com>,
        David Herrmann <dh.herrmann@gmail.com>
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[Resending because logs.txt attachment was not successful ]
Hi Mike,

On Wed, 25 Jan 2023 at 06:04, Mike Kravetz <mike.kravetz@oracle.com> wrote:
>
> On 01/05/23 15:14, Naresh Kamboju wrote:
> > While running selftests: memfd: run_hugetlbfs_test.sh on qemu_i386 and i386 the
> > following invalid opcode was noticed on stable-rc 6.1 and  6.0.
> >
> > This is always reproducible on stable-rc 6.1 and  6.0 with qemu_i386 and i386.
> > Build, config and test log details provided in the below links [1].
>
> Hello Naresh,
>
> I have tried to create this issue a few times without success.  Since I
> do not have i386 HW, I am using qemu_i386.  If I use the supplied config,
> my kernel does not boot.  I then try to modify config options which I
> think are not relevant.  By the time I get to a config that will boot, I
> can not recreate the issue. :(
>
> Just curious if you have any suggestions?  Or, Wondering if anyone else has
> suggestions on how to proceed?

Please install tuxmake and run attached script to reproduce reported issues,
$ pip3 install tuxmake
$ ./memfd-crash-test-qemu-i386.sh

This script downloads kernel Image and rootfs and runs run_hugetlbfs_test.sh.
If you have any questions please get back to me.

ref:
https://tuxsuite.com/

> --
> Mike Kravetz

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