From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay5.mymailcheap.com (relay5.mymailcheap.com [159.100.248.207]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 967151DF72F; Thu, 7 Nov 2024 10:34:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.100.248.207 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730975654; cv=none; b=HJ0jVQVDdINYqveDy/bYW/oKFQoSpf7wUhpFD1GsJdnCjdFj7cXdulqFaYsj4m2NhqNcwY96pk4/wvzjsVKJeVY8puLgF7O9tNmi1gs1qCU1xMQEwwLnvy6AV2RkP9liE9OdML9yTy3IoZQFOfAHqVLcl+p7zidgH3R/uzn4eTE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730975654; c=relaxed/simple; bh=Opi7PAEFaG+9SFGD2InUqdDcvGdzNbi6zSEJ/4Yro1c=; h=MIME-Version:Date:From:To:Cc:Subject:In-Reply-To:References: Message-ID:Content-Type; b=qcvJO3QOaShBK1rBtbL2VRPovEPelirmCM69nI9U9QRpNRBMLhj2R+MHqIhfAWXtv81s7yfRilUIgj2VSa48jPv5OplMAJD0jPOW6AH9GWC3nd9OpynCm+a9I7WIwZ4/RXoB6yJtmnHZnkjEdd/sPWdlYMpQqp1zalsSHqiAmBQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=aosc.io; spf=pass smtp.mailfrom=aosc.io; dkim=pass (1024-bit key) header.d=aosc.io header.i=@aosc.io header.b=j3/FQfCR; arc=none smtp.client-ip=159.100.248.207 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=aosc.io Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=aosc.io Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=aosc.io header.i=@aosc.io header.b="j3/FQfCR" Received: from relay1.mymailcheap.com (relay1.mymailcheap.com [144.217.248.100]) by relay5.mymailcheap.com (Postfix) with ESMTPS id C8F5B26761; Thu, 7 Nov 2024 10:34:04 +0000 (UTC) Received: from nf1.mymailcheap.com (nf1.mymailcheap.com [51.75.14.91]) by relay1.mymailcheap.com (Postfix) with ESMTPS id 3882E3E9D6; Thu, 7 Nov 2024 10:33:57 +0000 (UTC) Received: from mail20.mymailcheap.com (mail20.mymailcheap.com [51.83.111.147]) by nf1.mymailcheap.com (Postfix) with ESMTPSA id 3F88240078; Thu, 7 Nov 2024 10:33:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=aosc.io; s=default; t=1730975636; bh=Opi7PAEFaG+9SFGD2InUqdDcvGdzNbi6zSEJ/4Yro1c=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=j3/FQfCRb3jGhtZs+Jg/4sYOxXp/LBNLYVl7Q/o63HFNAKBR8Fx/Aq2nF/x4Y19BT FNnWOZRivnmkhCkISxGQVHLGD/ZaIGxKIgRhDAJBKYbGuOtrcH4g5kmOSoUrkr9wUo LOT7uPUu3KeacqZ4J8/XPhGYj+v6VeKgGpYQuY9g= Received: from mail20.mymailcheap.com (mail20.mymailcheap.com [51.83.111.147]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail20.mymailcheap.com (Postfix) with ESMTPSA id 9B5CA40490; Thu, 7 Nov 2024 10:33:55 +0000 (UTC) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Date: Thu, 07 Nov 2024 18:33:55 +0800 From: Mingcong Bai To: Frederic Weisbecker Cc: Thorsten Leemhuis , Linux regressions mailing list , LKML , "Paul E. McKenney" , rcu , sakiiily@aosc.io Subject: Re: [Regression] wifi problems since tg3 started throwing rcu stall warnings In-Reply-To: References: <2b25a988-6965-48e4-a788-58dd8a776e06@leemhuis.info> <937c258b-f34c-4f63-949d-a5e7c8db714d@leemhuis.info> Message-ID: X-Sender: jeffbai@aosc.io Organization: Anthon Open Source Community Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spamd-Result: default: False [-0.10 / 10.00]; MIME_GOOD(-0.10)[text/plain]; ARC_NA(0.00)[]; RCVD_TLS_ALL(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; ASN(0.00)[asn:16276, ipnet:51.83.0.0/16, country:FR]; MIME_TRACE(0.00)[0:+]; RCVD_COUNT_ONE(0.00)[1]; FUZZY_RATELIMITED(0.00)[rspamd.com]; RCPT_COUNT_SEVEN(0.00)[7]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; HAS_ORG_HEADER(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; MISSING_XM_UA(0.00)[] X-Rspamd-Server: nf1.mymailcheap.com X-Rspamd-Action: no action X-Rspamd-Queue-Id: 3F88240078 Hi all, 在 2024-11-07 18:04，Frederic Weisbecker 写道： > Le Thu, Nov 07, 2024 at 10:10:37AM +0100, Thorsten Leemhuis a écrit : >> On 05.11.24 08:17, Mingcong Bai wrote: >> > (CC-ing the laptop's owner so that she might help with further testing...) >> > 在 2024-10-23 18:22，Linux regression tracking (Thorsten Leemhuis) 写道： >> >> On 23.10.24 12:09, Frederic Weisbecker wrote: >> >>> Le Wed, Oct 23, 2024 at 10:27:18AM +0200, Linux regression tracking >> >>> (Thorsten Leemhuis) a écrit : >> >>>> >> >>>> Frederic, I noticed a report about a regression in bugzilla.kernel.org >> >>>> that appears to be caused by the following change of yours: >> >>>> 55d4669ef1b768 ("rcu: Fix rcu_barrier() VS post CPUHP_TEARDOWN_CPU >> >>>> invocation") >> >>> Are you sure about the commit? Below it says: >> >> Not totally, but... >> >> >> >>>> As many (most?) kernel developers don't keep an eye on the bug tracker, >> >>>> I decided to write this mail. To quote from >> >>>> https://bugzilla.kernel.org/show_bug.cgi?id=219390: >> >>>> >> >>>>>  Mingcong Bai 2024-10-15 13:32:35 UTC >> >>>>> Since aa162aa4aa383a0a714b1c36e8fcc77612ddd1a2 between v6.10.4 and >> >>> Now that's aa162aa4aa383a0a714b1c36e8fcc77612ddd1a2 which I can't >> >>> find in vanilla >> >>> tree. >> >> ...quite, as that is the commit-id of the backport to v6.10.5; and the >> >> reporter reverted it there. Ideally of course that would have happened >> >> on recent mainline. If you doubt, ask Mingcong Bai to check if a revert >> >> there helps, too. >> > Do we need any further information/testing on this issue? Please let me >> > know if there's anything we can do as the issue still persists in 6.12. >> >> Hmm, no reply from Frederic. Not sure why, maybe he is just away from >> the keyboard for a few days. But if the reporter has a minute, it >> might >> be wise to check if reverting that commit on top of 6.12-rc6 or newer >> also fixes the problem, to rule out any interference from changes >> specific to the stable series. >> >> Ciao, Thorsten > > Sorry for the lag, I still don't understand how this specific commit > can produce this issue. Can you please retry with and without this > commit > reverted? > > Thanks. Yes, we are on it. Should report back in six hours or so. Best Regards, Mingcong Bai