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From:   Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To:     Matthew Wilcox <willy@infradead.org>
Cc:     Naresh Kamboju <naresh.kamboju@linaro.org>,
        open list <linux-kernel@vger.kernel.org>,
        Linux-Next Mailing List <linux-next@vger.kernel.org>,
        linux-mm <linux-mm@kvack.org>, lkft-triage@lists.linaro.org,
        LTP List <ltp@lists.linux.it>,
        Andrew Morton <akpm@linux-foundation.org>,
        torvalds@linuxfoundation.org, Yang Shi <shy828301@gmail.com>,
        Jan Kara <jack@suse.cz>, Michal Hocko <mhocko@suse.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Mel Gorman <mgorman@suse.de>, Song Liu <songliubraving@fb.com>,
        Zi Yan <ziy@nvidia.com>, vtolkm@googlemail.com,
        Marek Szyprowski <m.szyprowski@samsung.com>,
        Arnd Bergmann <arnd@arndb.de>
Subject: Re: kernel BUG at mm/highmem.c:417! invalid opcode: 0000 EIP:
 zero_user_segments
Message-ID: <20201125112302.zh6x3hq7wyzqoz66@linutronix.de>
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 <20201124171628.dk6tle5lh3sx2jxg@linutronix.de>
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On 2020-11-25 00:46:32 [+0000], Matthew Wilcox wrote:
> 
> Thanks for debugging this!  I didn't realise start1 was allowed to be
> less than start2.  Try this ... (systemd is sabotaging my efforts to
> test an i386 kernel)

You are welcome.

Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

Sebastian