linux-kernel - Re: [PATCH v3] m68k: Fix memblock-related crashes

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Message-ID: <87a7l4rnb3.fsf@igel.home>
Date:   Mon, 17 Dec 2018 20:00:16 +0100
From:   Andreas Schwab <schwab@...ux-m68k.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     rppt@...ux.ibm.com, Michael Schmitz <schmitzmic@...il.com>,
        Sam Creasey <sammy@...my.net>,
        Greg Ungerer <gerg@...ux-m68k.org>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] m68k: Fix memblock-related crashes

On Dez 13 2018, Andreas Schwab <schwab@...ux-m68k.org> wrote:

> I'm now getting this Oops:
>
> [   65.390000] Unable to handle kernel NULL pointer dereference at virtual address (ptrval)
> [   65.390000] Oops: 00000000
> [   65.390000] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat virtio_rng virtio_blk virtio_ring virtio xfs btrfs xor zlib_deflate raid6_pq libcrc32c reiserfs squashfs fuse dm_snapshot dm_bufio dm_mod binfmt_misc loop sg
> [   65.390000] PC: [<00211544>] blk_throtl_bio+0x10e/0x592

And the crash does not occur when I revert commit 1008a11590.

Andreas.

-- 
Andreas Schwab, schwab@...ux-m68k.org
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