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 5D39717BB1A for ; Wed, 10 Apr 2024 17:29:45 +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=1712770186; cv=none; b=KxAA950yie48X2/3DvGajgMiIz6et+ob/NX4Hx2r3ZI0s13vcr6n3P79vn1C66Y2EAr4gN3Zck+kmk9UY4pjH38NNVultL0okmo9mFiA2ggrRkFPuYEqDdQu++eNTs0UnfvU8BfPMhKQA4CZ5zvKT1mCjTqx3lsEDfTEDHk7wAI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712770186; c=relaxed/simple; bh=P2JBJACvCVGQrY77erYLB2cWSst06ja15a6M8xosGaw=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=GfAVAdaBTqmhKlbiNfwRahVyqdoNob5cBoiT18S1Xhy0SFHG89P4qFoGNtOd8IML5h7Zrw4kkSdNm0844E1DBmfG1xwYx/OIO9VrTNkWFNE0En8YOBL8xr5nOEsCdGSFqLljqIOYzuR5jTHfMVrtL8TAmMpcPdTf3kBSn9/gsx0= 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=2tp3er/+; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=ueGVZeT3; 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="2tp3er/+"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="ueGVZeT3" From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1712770183; 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=P2JBJACvCVGQrY77erYLB2cWSst06ja15a6M8xosGaw=; b=2tp3er/+dLcFnLG8mk1ZZTArXyFsXUEo5VSJv7Tt/s4CW0t10dwKn3v7RDdbcdZYWm1zUq Z5jBBjGgQW37B3kSgGvpSyp8b4deFjoqW0XgPr/3G0+kjd35NAEfhWa7gVUXJXc9kub8dD bG+rOuCx+DRrxFGfWciJ34B9UIH8uQz+5iQzZ3ehULQD4uujuAhiMyNVezk2FnTdpiJIru fSQJm9KADHF64cYWUQfllM3CFcKYbCqGW5YvBUH/Oi3oplWjwifkDH9gPwwdzoPK5C46bB MDfBnuxBt/y2jz5v7v7V0PO4Rx1nUONAMnFMabE1D//p/htiBwoLBZojb5ApHQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1712770183; 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=P2JBJACvCVGQrY77erYLB2cWSst06ja15a6M8xosGaw=; b=ueGVZeT3llAneaalbZgqNVdd1qHRrYR7LJT6s9i72mvIordFFN5ynxXXE1gAxDoo2W4Jmo eucZpsA1aiBf4WBw== To: "Linux regression tracking (Thorsten Leemhuis)" Cc: LKML , xiangfeix.ma@intel.com, Dongli Zhang , Linux kernel regressions list Subject: Re: Call Trace when adding vCPU to guest In-Reply-To: <842fde07-d532-4c9e-8b4e-3447509e040e@leemhuis.info> References: <87bk6h49tq.ffs@tglx> <871q7d46e7.ffs@tglx> <842fde07-d532-4c9e-8b4e-3447509e040e@leemhuis.info> Date: Wed, 10 Apr 2024 19:29:43 +0200 Message-ID: <87msq12kjc.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 18:25, Linux regression tracking (Thorsten Leemhuis) wrote: > On 10.04.24 16:52, Thomas Gleixner wrote: > I can reproduce as well. But the callstack is different. It finally > reaches at topo_set_cpuids(). That looks about right. > I am not able to reproduce with the below: > > x86/topology: Don't update cpu_possible_map in topo_set_cpuids() > https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?h=x86/urgent&id=a9025cd1c673a8d6eefc79d911075b8b452eba8f Yes, that's the fix for the crash you saw.