linux-kernel - Re: [PATCH] m68k/mm: Stop printing the virtual memory layout

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Message-ID: <CAMuHMdX22KBFnX_yObmb8ZBrDHtmMg9kfeDQBftcxELjGWUBpg@mail.gmail.com>
Date:   Mon, 26 Feb 2018 10:46:46 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     linux-m68k <linux-m68k@...ts.linux-m68k.org>
Cc:     Greg Ungerer <gerg@...ux-m68k.org>,
        Kees Cook <keescook@...omium.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: Re: [PATCH] m68k/mm: Stop printing the virtual memory layout

On Mon, Feb 12, 2018 at 9:53 AM, Geert Uytterhoeven
<geert@...ux-m68k.org> wrote:
> Since commit ad67b74d2469d9b8 ("printk: hash addresses printed with
> %p"), the virtual memory layout printed during boot up contains "ptrval"
> instead of actual addresses:
>
>     Memory: 268040K/276480K available (2979K kernel code, 310K rwdata, 784K rodata, 144K init, 172K bss, 8440K reserved, 0K cma-reserved)
>     Virtual kernel memory layout:
>         vector  : 0x003d2e74 - 0x003d3274   (   1 KiB)
>         kmap    : 0xd0000000 - 0xf0000000   ( 512 MiB)
>         vmalloc : 0x11800000 - 0xd0000000   (3048 MiB)
>         lowmem  : 0x00000000 - 0x11000000   ( 272 MiB)
>           .init : 0x(ptrval) - 0x(ptrval)   ( 144 KiB)
>           .text : 0x(ptrval) - 0x(ptrval)   (2980 KiB)
>           .data : 0x(ptrval) - 0x(ptrval)   (1095 KiB)
>           .bss  : 0x(ptrval) - 0x(ptrval)   ( 173 KiB)
>
> Instead of changing the printing to "%px", and leaking virtual memory
> layout information again, just remove the printing completely, cfr. e.g.
> commit 071929dbdd865f77 ("arm64: Stop printing the virtual memory
> layout").
>
> All interesting information (actual section sizes) is already printed by
> mem_init_print_info() just above anyway.
>
> Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>

Thanks, applied and queue for v4.17.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds