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Message-ID: <87r1t3z612.fsf@nanos.tec.linutronix.de>
Date:   Wed, 22 Jul 2020 21:47:05 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     "H.J. Lu" <hjl.tools@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        the arch/x86 maintainers <x86@...nel.org>,
        Christoph Hellwig <hch@....de>,
        Josh Poimboeuf <jpoimboe@...hat.com>
Subject: Re: [PATCH] x86/dumpstack: Dump user space code correctly again

"H.J. Lu" <hjl.tools@...il.com> writes:
> On Wed, Jul 22, 2020 at 10:54 AM Thomas Gleixner <tglx@...utronix.de> wrote:
>> +       if (copy_code(regs, opcodes, prologue, sizeof(opcodes))) {
>>                 printk("%sCode: Bad RIP value.\n", loglvl);
>>         } else {
>>                 printk("%sCode: %" __stringify(PROLOGUE_SIZE) "ph <%02x> %"
>
> Add a kerel self test?

Care to whip one up?

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