linux-kernel - Re: [linus:master] [eventfs] 852e46e239: BUG:unable_to_handle_page_fault_for

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Date: Tue, 30 Jan 2024 13:45:35 +0100
From: Rasmus Villemoes <rasmus.villemoes@...vas.dk>
To: Linus Torvalds <torvalds@...ux-foundation.org>,
 Steven Rostedt <rostedt@...dmis.org>
Cc: linux-kernel@...r.kernel.org, Hector Martin <marcan@...can.st>
Subject: Re: [linus:master] [eventfs] 852e46e239:
 BUG:unable_to_handle_page_fault_for_address

On 30/01/2024 10.12, Linus Torvalds wrote:
> On Tue, 30 Jan 2024 at 00:43, Linus Torvalds
> <torvalds@...ux-foundation.org> wrote:
>>
>> I'll go back to bed, but I think the fix is something trivial like this:
> 
> Almost.
> 
>>   +     result = ERR_PTR(ENOENT);
> 
> That needs a '-' in front of the ENOENT, otherwise you have a positive
> error number and things go wrong very quickly.

OT, but 'git grep' suggests that drivers/soc/apple/mailbox.c might need
exactly that fix... (there's also ext4, but their custom E thing is
already negative).

Rasmus