From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f44.google.com (mail-ed1-f44.google.com [209.85.208.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B84CD173 for ; Wed, 5 Jan 2022 01:07:46 +0000 (UTC) Received: by mail-ed1-f44.google.com with SMTP id bm14so155325274edb.5 for ; Tue, 04 Jan 2022 17:07:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=QcBoRznUQAtg4CEHssJ6IifXUoLNnxsCgJFoPsNsb6A=; b=LiLJAkJ0XeZjqsciuczbQmeqfldjcMuDVO48OIZgmdniFlvaypegSIX2JGGRz0EiGt YbFzR/jt5iCc49g1leTPWmZpyorA9WAZGm2xoEWE86zAKeS8k9BJWAo0T5ghWH3i6bX6 Z66fNYyf1RYgsnKvIB30W8m49lxPGdFjQW8iIg+orlXe/EnEjqCF0tkSWLQGfoiOxPzl NarKYUn5vvQd6IwtHsADDxQJ5Ws1tYq6pOvndi8i0h4A11hFkCicn70YV9VoHJ/KgTDv RkgoOwadBua/is1dnpO/ANR2usdDW6WehCfLtG0mPUBkmPa5W1HxjqXezYCmxGZ7+KVN Ivrw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to; bh=QcBoRznUQAtg4CEHssJ6IifXUoLNnxsCgJFoPsNsb6A=; b=eGDrJcpkdCfGdqadHFeWhdCCM15Mby2iHAlKpMgKYosfbowFZM6sQZXMXA8K0O2YXc F7UciP7PRw2rsLCayLBy4h5DnC3jEnlB8oPB3E0+CQOiKz0Gu1zzRhF4hzofe+vOZlIw ncMwJczk1PZAa2hraIF71v7tz7bYZvA+rN0lVqxNnY7+oNr6mT7NMO8M2/ubxaFCkOCy nyWHzRDMlg2eOnQGaDjCpv5mRaxFxyIoWxJ32ekGEL37OmmoB0/l4bBsA5lsiD/r5mE4 SXF9u/VIcuLXFbYbNK9JSKgD7hQdwOJAfUUMlEFG69xeCYN0SswynJCf1mD4xSixShR7 hXjQ== X-Gm-Message-State: AOAM530Gp+D0W/WrhU1svxqSTEoPuaEfzuaq7DmG42nzZenOQLoHRXPy f0mR3EHUXYpdzn1vkxcx86g= X-Google-Smtp-Source: ABdhPJxwbYP1wQfL9S/iZi9ubZVSGaotyhW3Tig/qr6A+xXhD0bJjHhiaKyAZaRiOHmgJJCtwzW1/Q== X-Received: by 2002:a05:6402:35d2:: with SMTP id z18mr50100643edc.100.1641344865149; Tue, 04 Jan 2022 17:07:45 -0800 (PST) Received: from gmail.com (0526F11B.dsl.pool.telekom.hu. [5.38.241.27]) by smtp.gmail.com with ESMTPSA id sh11sm11965180ejc.17.2022.01.04.17.07.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Jan 2022 17:07:44 -0800 (PST) Sender: Ingo Molnar Date: Wed, 5 Jan 2022 02:07:42 +0100 From: Ingo Molnar To: Nathan Chancellor Cc: Linus Torvalds , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Andrew Morton , Peter Zijlstra , Thomas Gleixner , Greg Kroah-Hartman , "David S. Miller" , Ard Biesheuvel , Josh Poimboeuf , Jonathan Corbet , Al Viro , llvm@lists.linux.dev Subject: Re: [PATCH 0000/2297] [ANNOUNCE, RFC] "Fast Kernel Headers" Tree -v1: Eliminate the Linux kernel's "Dependency Hell" Message-ID: References: Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: * Ingo Molnar wrote: > > * Nathan Chancellor wrote: > > > > I.e. I think the bug was simply to make main.c aware of the array, now > > > that the INIT_THREAD initialization is done there. > > > > Yes, that seems right. > > > > Unfortunately, while the kernel now builds, it does not boot in QEMU. I > > tried to checkout at 9006a48618cc0cacd3f59ff053e6509a9af5cc18 to see if I > > could reproduce that breakage there but the build errors out at that > > change (I do see notes of bisection breakage in some of the commits) so I > > assume that is expected. > > Yeah, there's a breakage window on ARM64, I'll track down that > bisectability bug. I haven't fixed this ARM64 bisection breakage yet, but I've integrated & backmerged all the other fixes and changes, and pushed it out to the WIP branch: # 1755441e323b per_task: Implement single template to define 'struct task_struct_per_task' fields and offsets git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers Let me know if there's anything missing or if there's a new breakage. This is pretty close to what will be -v2. Thanks, Ingo