From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-176.mta1.migadu.com (out-176.mta1.migadu.com [95.215.58.176]) (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 AD0102E62A2 for ; Thu, 3 Apr 2025 22:00:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.176 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743717631; cv=none; b=UoSK5XXunHReEbPZzrUgpiv8+DmlVX+V4t2hGvVp0g0eU2mx/vNHqCZMn7yd0JoGo4itgYe0eDZMaGxMrNz30wbK4RBqoOaheHq67vJK++8qvdUQeSESNK25cksguT7hvC8dpz1boSD0vc2lWrKQDegi3CHVGhK0e20qxQSE4r8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743717631; c=relaxed/simple; bh=h7nTgTP3NXOGE1VcUlyux+afCSP2rmTQen+lpws4idg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=tKYIDptUmUFPWt9mOECyX+iCP1yDpTAw4mAKMdzW15GdnpC7DxwdJlKxqlT9TW5K2Z/P/BUGxs2aU/AXOUdFIX3qpYifH5WRWFcTEKb3biPoCXW4ViynITbZY7VtemPFtAtjgoijTx86uQO5WolrCZxkQerHLDqWvxyFmELCOfU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=r-ricci.it; spf=pass smtp.mailfrom=r-ricci.it; dkim=pass (2048-bit key) header.d=r-ricci.it header.i=@r-ricci.it header.b=pIKlnPAD; arc=none smtp.client-ip=95.215.58.176 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=r-ricci.it Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=r-ricci.it Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=r-ricci.it header.i=@r-ricci.it header.b="pIKlnPAD" Date: Fri, 4 Apr 2025 00:00:24 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=r-ricci.it; s=key1; t=1743717627; 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=h7nTgTP3NXOGE1VcUlyux+afCSP2rmTQen+lpws4idg=; b=pIKlnPAD49IT9newoKNv2EugDGyKrmm3GRZWVHdONQQtFQnhhEeZHDy8ng2S54Gsq2l7kW S17+FPbKs+SWNcpfvCApNNXj2BzBV/E790l5A3L37pXVr1rtk5WmopP/jZvpm2ZV6T2M+7 tONLvKp7muaBoz7VWw3UMpoGHLg6H3ikKkka2dG5v7F+elDAVs4xYJRyKh/zANFupgyOZw iPrm0z0mORJrP9iZrtwj4Cv3JofzVEEmgc5sh0h2yHquEgQhCnkjtLstlHuTsJDXyJIRnT kpT1cenc2RwUCkBFeqDq1wQoSm1OG3evlAnDV/mcRJmCd2P55lpy2qFhJwZSRA== X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Roberto Ricci To: msizanoen Cc: ebiederm@xmission.com, rafael@kernel.org, pavel@ucw.cz, ytcoode@gmail.com, kexec@lists.infradead.org, linux-pm@vger.kernel.org, akpm@linux-foundation.org, regressions@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [REGRESSION] Kernel booted via kexec fails to resume from hibernation Message-ID: References: Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Migadu-Flow: FLOW_OUT On 2025-04-01 19:59 +0700, msizanoen wrote: > [snip] > It seems like `e820__register_nosave_regions` is erroneously marking some > kernel memory as nosave in the presence of sub-page e820 regions. In theory > backporting > https://lore.kernel.org/all/20250214090651.3331663-1-rppt@kernel.org/ should > be sufficient to avoid this but a fix for the actual root cause is > preferred. When using kexec_file_load, this patch series fixes the issue not only in theory but also in practice. But the issue with kexec_load (see https://lore.kernel.org/all/Z-hYWc9LtBU1Yhtg@desktop0a/ ), which might be related, is not fixed.