From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.gentoo.org (woodpecker.gentoo.org [140.211.166.183]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B188912B8B; Wed, 31 Jul 2024 17:00:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=140.211.166.183 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722445212; cv=none; b=tJI9v0VL+E8RzpojtTKHsdK3H+KiJJR+1LD50U5X8XlAYGFlt9bkX6ULvgZnpG7wPO6/ubBkxB/S2YviR522FYzI2ChhWaDAhY6+zRQHbCxd5s6GCHbkhKydaGdoWvQvkubxe+M3YBSEjPR4f/lZA22OYwPpCJkNI7KLGNShEV8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722445212; c=relaxed/simple; bh=FzOcWg3ydDqPokvS0+peckNMd6IQ8EkTJOZDmhSS428=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=f0FU9zec66IrgsjDzOF1HPpQON90j9mD9PAvJfn8MJ/W38fto17VxoxVcd2vlt+3iqUyM2ub/rfr1XJqGCNMywhDQvtDpsHMnyxmdZDncbCQHvACKKoyjjWAx+K9UoU4g/WP7q8qkxJM8W9ZIlOuUVXQfEXXuwPPAzT5OVt2JM0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gentoo.org; spf=pass smtp.mailfrom=gentoo.org; arc=none smtp.client-ip=140.211.166.183 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gentoo.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gentoo.org From: Sam James To: Greg KH Cc: Peter Zijlstra , matoro , John David Anglin , Linux Parisc , Deller , John David Anglin , stable@vger.kernel.org Subject: Re: Crash on boot with CONFIG_JUMP_LABEL in 6.10 In-Reply-To: <2024073133-attentive-important-d419@gregkh> (Greg KH's message of "Wed, 31 Jul 2024 15:41:03 +0200") Organization: Gentoo References: <096cad5aada514255cd7b0b9dbafc768@matoro.tk> <11e13a9d-3942-43a5-b265-c75b10519a19@bell.net> <20240731110617.GZ33588@noisy.programming.kicks-ass.net> <877cd1bsc4.fsf@gentoo.org> <2024073133-attentive-important-d419@gregkh> Date: Wed, 31 Jul 2024 18:00:05 +0100 Message-ID: <87sevpa44q.fsf@gentoo.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Greg KH writes: > On Wed, Jul 31, 2024 at 02:31:55PM +0100, Sam James wrote: >> Peter Zijlstra writes: >>=20 >> > On Tue, Jul 30, 2024 at 08:36:13PM -0400, matoro wrote: >> >> On 2024-07-30 09:50, John David Anglin wrote: >> >> > On 2024-07-30 9:41 a.m., John David Anglin wrote: >> >> > > On 2024-07-29 7:11 p.m., matoro wrote: >> >> > > > Hi all, just bumped to the newest mainline starting with 6.10.2 >> >> > > > and immediately ran into a crash on boot. Fully reproducible, >> >> > > > reverting back to last known good (6.9.8) resolves the issue.= =C2=A0 >> >> > > > Any clue what's going on here? >> >> > > > I=C2=A0can=C2=A0provide=C2=A0full=C2=A0boot=C2=A0logs,=C2=A0sta= rt=C2=A0bisecting,=C2=A0etc=C2=A0if=C2=A0needed... >> >> > > 6.10.2 built and booted okay on my c8000 with the attached config. >> >> > > You could start >> >> > > with it and incrementally add features to try to identify the one >> >> > > that causes boot failure. >> >> > Oh, I have an experimental clocksource patch installed.=C2=A0 You w= ill need >> >> > to regenerate config >> >> > with "make oldconfig" to use the current timer code.=C2=A0 Probably= , this >> >> > would happen automatically. >> >> > >=20 >> >> > > Your config would be needed to duplicate.=C2=A0 =C2=A0 Full boot = log would also help. >> >> >=20 >> >> > Dave >> >>=20 >> >> Hi Dave, bisecting quickly revealed the cause here. >> > >> > https://lkml.kernel.org/r/20240731105557.GY33588@noisy.programming.kic= ks-ass.net >>=20 >> Greg, I see tglx's jump_label fix is queued for 6.10.3 but this one >> isn't as it came too late. Is there any chance of chucking it in? It's >> pretty nasty. > > What is the git id of this in Linus's tree? Ah, you're right, it's not there. Sorry, I thought I'd seen it pulled. > > thanks, > > greg k-h