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Message-ID: <CAHk-=whb91PWEaEJpRGsuWaQpYZGj98ji8HC2vvHD4xb_TqhJw@mail.gmail.com>
Date: Mon, 29 Jan 2024 11:24:12 -0800
From: Linus Torvalds <torvalds@...ux-foundation.org>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: kernel test robot <oliver.sang@...el.com>, oe-lkp@...ts.linux.dev, lkp@...el.com, 
	linux-kernel@...r.kernel.org, Masami Hiramatsu <mhiramat@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, 
	Christian Brauner <brauner@...nel.org>, Al Viro <viro@...iv.linux.org.uk>, 
	Ajay Kaher <ajay.kaher@...adcom.com>, linux-trace-kernel@...r.kernel.org
Subject: Re: [linus:master] [eventfs] 852e46e239: BUG:unable_to_handle_page_fault_for_address

On Mon, 29 Jan 2024 at 09:40, Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
>
> IOW, I think the right fix is really just this:

Oh, for some reason I sent out the original patch I had which didn't
fix the create_dir() case.

So that patch was missing the important hunk that added the

        ti->flags = TRACEFS_EVENT_INODE;
        ti->private = ei;

to create_dir() (to match the removal in eventfs_post_create_dir()).

I had incorrectly put it in the create_file() case, that should just
set ->private to NULL. afaik

So the patch was completely broken. Here's the one that should
actually compile (although still not actually *tested*).

               Linus

View attachment "0001-eventfsfs-initialize-the-tracefs-inode-properly.patch" of type "text/x-patch" (2544 bytes)

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