From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 1EA632AF16 for ; Wed, 10 Apr 2024 13:38:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712756293; cv=none; b=aHPkoOCJNma7AjnusZco4SGdmiqGwz+QjXYbjyku0qDNtbq948qigNYZW/vGukH7r8meakc52E2u1x9zLVs24sI4uM2uW362qxpOni3qSSFB1tSPDTNZ6GA3oaaEFWK44d/58WiVxcz/7wNU8osqBfX3SPIfCxt00LB1eO3a/PI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712756293; c=relaxed/simple; bh=G/Cy5WPY96g4Vl+cNSJrgwM1kif9xH6SaNAxGLyC81I=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=ieM3vWdDajCTbMubhorOL7N7ymS7qgwDnx+IVqXoINut53pPVI+bfbjv5NfVZM103HIoLiyiHFrPiQ3CHbOhqHLhc05QWbSmqCf3EmyOsVu48yvhqVeRjilhPVNSxsHyZ5MmHH7NfMlYjfyyUSeK2qlqqBqXKt8zTv9GnNHu0gg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=2IqzZRrh; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=dFsRKC0T; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="2IqzZRrh"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="dFsRKC0T" From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1712756290; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=7KWwszC1gDIImnfxbJ4YyzLnz2jQUcsGLC9WpM8+8rY=; b=2IqzZRrhZcPb5nY6Q+9wyV0sCb+QNwaSj4CHOMo4dEH3vuM2qV7MzFMxf3HM+F9NqC9r9e U70ne/3u16q+roLOmZyErczNiVYIyRjchWVsbiEoE1PiOgA3BWjO/keUaYL7vOxHbxa7+V pl6KBIonVNu/tktRp8iRzgE8R2JAqZBWn4cfL/4CjoC0FZDdgJOBJXXSiqIaI7zcgnotlo 1VBfhxOX086hviMwZDVtAMGh9c7LCFJ4xG5TRVNWZPb5jG5+MWNu6kh1VAeAUNkVVxg31+ 7A7IWxTPJstXib5rLTpXN/p/5D83OTYll6aQtQUQyv50w9J5H8npoxdfm9KdkQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1712756290; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=7KWwszC1gDIImnfxbJ4YyzLnz2jQUcsGLC9WpM8+8rY=; b=dFsRKC0TzEd4cIVGDe0cKMC7uvNHbBGWU3gVxmOGF8OhejSVRne0O/QO3U7oA4bpwqq6sj lNGeKAQjrhgOxzAA== To: "Linux regression tracking (Thorsten Leemhuis)" , Linux kernel regressions list Cc: LKML , xiangfeix.ma@intel.com Subject: Re: Call Trace when adding vCPU to guest In-Reply-To: References: Date: Wed, 10 Apr 2024 15:38:09 +0200 Message-ID: <87bk6h49tq.ffs@tglx> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Wed, Apr 10 2024 at 09:34, Linux regression tracking (Thorsten Leemhuis) wrote: > Hi, Thorsten here, the Linux kernel's regression tracker. > > I noticed a report about a regression in bugzilla.kernel.org. > > Thomas, I wonder if it's caused by your topology changes. But it's just > a wild guess and I might be totally wrong there, so feel free to ignore > this mail. I already asked for a bit more log output and a bisection in > the ticket. > > To quote from https://bugzilla.kernel.org/show_bug.cgi?id=218698 > >> Environment: >> >> Host OS: CentOS 9 >> Host kernel: 6.9.0-rc1 >> KVM commit: 9bc60f73 >> Qemu commit: e5c6528d >> Guest kernel: 6.9-rc2 >> Guest commit: 39cd87c4eb2b893354f3b850f916353f2658ae6f >> Guest repo: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >> >> >> Bug detail description: >> >> When hot adding a vCPU to the guest, the guest happens Call Trace and reboot. https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?h=x86/urgent&id=a9025cd1c673a8d6eefc79d911075b8b452eba8f It'll be in rc4 Thanks, tglx