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Message-ID: <20171206084537.GA462@jagdpanzerIV>
Date: Wed, 6 Dec 2017 17:45:37 +0900
From: Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
Randy Dunlap <rdunlap@...radead.org>,
David Laight <David.Laight@...lab.com>,
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"kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>,
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Theodore Ts'o <tytso@....edu>, Paolo Bonzini <pbonzini@...hat.com>,
Tycho Andersen <tycho@...ho.ws>,
"Roberts, William C" <william.c.roberts@...el.com>,
Tejun Heo <tj@...nel.org>,
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Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH V11 4/5] vsprintf: add printk specifier %px
On (12/06/17 09:32), Geert Uytterhoeven wrote:
[..]
> >> show_fault_oops(struct pt_regs *regs, unsigned long error_code,
> >> unsigned long address)
> >> ...
> >> printk(KERN_CONT " at %p\n", (void *) address);
> >> printk(KERN_ALERT "IP: %pS\n", (void *)regs->ip);
> >
> > So %pS isn't %p, and shows the symbolic name.
>
> If the symbolic name is available.
> Else it prints the non-hashed pointer value (FTR).
hm, indeed. and !CONFIG_KALLSYMS config turns %pS/%ps
into special_hex_number().
-ss
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