Date: Tue, 28 Nov 2017 00:26:58 -0600 From: ebiederm@...ssion.com (Eric W. Biederman) To: Linus Torvalds <torvalds@...ux-foundation.org> Cc: "Tobin C. Harding" <me@...in.cc>, "Jason A. Donenfeld" <Jason@...c4.com>, "Theodore Ts'o" <tytso@....edu>, Kees Cook <keescook@...omium.org>, Paolo Bonzini <pbonzini@...hat.com>, Tycho Andersen <tycho@...ho.ws>, "Roberts\, William C" <william.c.roberts@...el.com>, Tejun Heo <tj@...nel.org>, Jordan Glover <Golden_Miller83@...tonmail.ch>, Greg KH <gregkh@...uxfoundation.org>, Petr Mladek <pmladek@...e.com>, Joe Perches <joe@...ches.com>, Ian Campbell <ijc@...lion.org.uk>, Sergey Senozhatsky <sergey.senozhatsky@...il.com>, Catalin Marinas <catalin.marinas@....com>, Will Deacon <wilal.deacon@....com>, Steven Rostedt <rostedt@...dmis.org>, Chris Fries <cfries@...gle.com>, Dave Weinstein <olorin@...gle.com>, Daniel Micay <danielmicay@...il.com>, Djalal Harouni <tixxdz@...il.com>, Radim Krčmář <rkrcmar@...hat.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, KVM list <kvm@...r.kernel.org>, "kernel-hardening\@lists.openwall.com" <kernel-hardening@...ts.openwall.com> Subject: Re: [PATCH 0/5] add printk specifier %px, unique identifier Linus Torvalds <torvalds@...ux-foundation.org> writes: > On Mon, Nov 27, 2017 at 4:03 PM, Linus Torvalds > <torvalds@...ux-foundation.org> wrote: >> >> So the big remaining ones for me are the /proc/<pid>/stack (stack >> pointers) and the /proc/net/* ones. >> >> I'm a bit disappointed that those haven't been fixed already and >> aren't even in this series.. > > Oh well, I just did /proc/<pid>/stack by making it just print 0 > unconditionally rather than the hex number. Patch? I know I have used /proc/<pid>/stack manually many times when looking at a system where something is hung/weird and I needed to see what is going on. The backtrace inside the kernel can be invaluable. At the same time I don't know if we actually need the hex address. But please don't break that interface it is very useful. Eric
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