linux-kernel - Re: [tip: perf/core] x86/uprobes: Fix XOL allocation failure for 32-bit tasks

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Message-ID: <aWoMN5oCPIl2M2DP@redhat.com>
Date: Fri, 16 Jan 2026 11:00:23 +0100
From: Oleg Nesterov <oleg@...hat.com>
To: tip-bot2 for Oleg Nesterov <tip-bot2@...utronix.de>
Cc: linux-tip-commits@...r.kernel.org, Paulo Andrade <pandrade@...hat.com>,
	"Peter Zijlstra (Intel)" <peterz@...radead.org>,
	stable@...r.kernel.org, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [tip: perf/core] x86/uprobes: Fix XOL allocation failure for
 32-bit tasks

On 01/15, tip-bot2 for Oleg Nesterov wrote:
>
> The following commit has been merged into the perf/core branch of tip:

Damn!

thanks Peter, but...

> --- a/arch/x86/kernel/uprobes.c
> +++ b/arch/x86/kernel/uprobes.c
> @@ -1823,3 +1823,27 @@ bool is_uprobe_at_func_entry(struct pt_regs *regs)
>
>  	return false;
>  }
> +
> +#ifdef CONFIG_IA32_EMULATION
> +unsigned long __weak arch_uprobe_get_xol_area(void)

Oh, but x86 version should not be __weak. Copy-and-paste error, sorry :/

What do you want me to do now,

	- send V2 ?

	- send another s/__weak// patch on top of this hack?

	- or perhaps you can fix this yourself?

Oleg.