Re: [PATCH v7] x86: Avoid pr_cont() in show_opcodes().

[Peter Zijlstra]

On Thu, Jul 19, 2018 at 11:07:58PM +0900, Tetsuo Handa wrote:
> From: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
> 
> Since syzbot is confused by concurrent printk() messages [1],
> this patch changes show_opcodes() to use %ph format string.
> 
> When we start adding prefix to each line of printk() output,
> we will be able to handle concurrent printk() messages.
> 
> [1] https://syzkaller.appspot.com/text?tag=CrashReport&x=139d342c400000
> 
> Signed-off-by: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
> Signed-off-by: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
> Cc: Borislav Petkov <bp@xxxxxxx>
> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Cc: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
> Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx>

Thanks!

Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>