From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from wp530.webpack.hosteurope.de (wp530.webpack.hosteurope.de [80.237.130.52]) (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 601962C81 for ; Wed, 24 Nov 2021 07:48:48 +0000 (UTC) Received: from ip4d173d4a.dynamic.kabel-deutschland.de ([77.23.61.74] helo=[192.168.66.200]); authenticated by wp530.webpack.hosteurope.de running ExIM with esmtpsa (TLS1.3:ECDHE_RSA_AES_128_GCM_SHA256:128) id 1mpn1K-0000gh-Kt; Wed, 24 Nov 2021 08:48:46 +0100 Message-ID: Date: Wed, 24 Nov 2021 08:48:46 +0100 Precedence: bulk X-Mailing-List: regressions@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.3.0 Content-Language: en-BS To: Stefan Dietrich , stable@vger.kernel.org Cc: regressions@lists.linux.dev References: <924175a188159f4e03bd69908a91e606b574139b.camel@gmx.de> From: Thorsten Leemhuis Subject: Re: [REGRESSION] Kernel 5.15 reboots / freezes upon ifup/ifdown In-Reply-To: <924175a188159f4e03bd69908a91e606b574139b.camel@gmx.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-bounce-key: webpack.hosteurope.de;regressions@leemhuis.info;1637740128;1bfa6232; X-HE-SMSGID: 1mpn1K-0000gh-Kt Hi, this is your Linux kernel regression tracker speaking. On 24.11.21 08:28, Stefan Dietrich wrote: > Summary: When attempting to rise or shut down a NIC manually or via > network-manager under 5.15, the machine reboots or freezes. > > Occurs with: 5.15.4-051504-generic and earlier 5.15 mainline ( > https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.15.4/) as well as > liquorix flavours. > Does not occur with: 5.14 and 5.13 (both with various flavours) Thx for the report. Small detail: you CCed the stable list, but this afaics is a mainline regression. Likely one in the network subsystem, so it might be good to get the mailing list where the network developer hang out in the loop. But as Greg already said: a bisection would help a lot to find the root cause and thus the developers that need to take care of this. Anyway, to be sure this issue doesn't fall through the cracks unnoticed, I'm adding it to regzbot, my Linux kernel regression tracking bot: #regzbot ^introduced v5.14..v5.15 #regzbot ignore-activity Ciao, Thorsten, your Linux kernel regression tracker. P.S.: If you want to know more about regzbot, check out its web-interface, the getting start guide, and/or the references documentation: https://linux-regtracking.leemhuis.info/regzbot/ https://gitlab.com/knurd42/regzbot/-/blob/main/docs/getting_started.md https://gitlab.com/knurd42/regzbot/-/blob/main/docs/reference.md The last two documents will explain how you can interact with regzbot yourself if your want to. Hint for the reporter: when reporting a regression it's in your interest to tell #regzbot about it in the report, as that will ensure the regression gets on the radar of regzbot and the regression tracker. That's in your interest, as they will make sure the report won't fall through the cracks unnoticed. Hint for developers: you normally don't need to care about regzbot, just fix the issue as you normally would. Just remember to include a 'Link:' tag to the report in the commit message, as explained in Documentation/process/submitting-patches.rst That aspect was recently was made more explicit in commit 1f57bd42b77c: https://git.kernel.org/linus/1f57bd42b77c P.S.: As a Linux kernel regression tracker I'm getting a lot of reports on my table. I can only look briefly into most of them. Unfortunately therefore I sometimes will get things wrong or miss something important. I hope that's not the case here; if you think it is, don't hesitate to tell me about it in a public reply. That's in everyone's interest, as what I wrote above might be misleading to everyone reading this; any suggestion I gave they thus might sent someone reading this down the wrong rabbit hole, which none of us wants. BTW, I have no personal interest in this issue, which is tracked using regzbot, my Linux kernel regression tracking bot (https://linux-regtracking.leemhuis.info/regzbot/). I'm only posting this mail to get things rolling again and hence don't need to be CC on all further activities wrt to this regression.