From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 20CF663B9; Thu, 29 May 2025 23:24:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748561090; cv=none; b=LB3LCYq087yIaHO/N5GdfLKVPxPWx8Kglmli/ZHueIUzRiFKlOT/nsn1BDMD8wUosHxu9OUwbDrXehkcQZ/mhuPpFjbdNyr22yS/zr+c7zqsNHOz31c0el7r8gQJfXiDYc31PtpZpCrt+XDo8RGiO1ajI8Wa0uRWCH/lLyL34Ec= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748561090; c=relaxed/simple; bh=XHek1or6lgqhUolGMvuGeooaTqEUU9Li8TYgY+vSfcA=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=SniTFoUml3S3G6MvfjlxfDw6EeBdTXOfL03e4pYMfVuM0z1etOIWuFhwZdhxshMkfa1+sMP+zQ2hoeOU+NpQ+QPyUQbrmaa95WKsLXcxMSrBB44s326rnnV8Ec/eY5/KyCPUHnhqfg/6ODPI3CpnwsA+PkAUefhqHcOeSQzHokI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=SxkNzBST; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="SxkNzBST" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9174AC4CEE7; Thu, 29 May 2025 23:24:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1748561089; bh=XHek1or6lgqhUolGMvuGeooaTqEUU9Li8TYgY+vSfcA=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=SxkNzBSTwpjci3VuBTnBCeXjQwbDMmYbh7D5ztdNlSAzhtQM4Kw4VnEEmyPOOJ7dS ml5P97uFliPzrLABarBwXqgRmHigFFTADXFoBhI1l7kml3JmsHM0gGXJ2EdenZyJ6e iUV3fy1cITtu/iVSmXAx6tRmvYLob7yMdCStGtNu/bio1iVq1cJaUGSbJhmQTDLiIr RdLjPH8cyaGS8OWCryRsuVGJAvcUYYw9qtebVaduOyQ1L3bU5uSE2ld37SpcSGizrN dkS27CXxvs24AIkJYhm0KdyQp21oJEaUnhetrjJs2wZT0XtzxQhyi0+tBlTyBmpTSW scCU6sL2oFOPA== Date: Thu, 29 May 2025 16:24:47 -0700 From: Jakub Kicinski To: Jeff Layton Cc: Andrew Morton , "David S. Miller" , Eric Dumazet , Paolo Abeni , Simon Horman , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , Kuniyuki Iwashima , Qasim Ijaz , Nathan Chancellor , Andrew Lunn , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, Thomas =?UTF-8?B?V2Vpw59zY2h1aA==?= Subject: Re: [PATCH v12 00/10] ref_tracker: add ability to register a debugfs file for a ref_tracker_dir Message-ID: <20250529162447.30c4ca85@kernel.org> In-Reply-To: <20250529-reftrack-dbgfs-v12-0-11b93c0c0b6e@kernel.org> References: <20250529-reftrack-dbgfs-v12-0-11b93c0c0b6e@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Thu, 29 May 2025 11:20:36 -0400 Jeff Layton wrote: > Sorry for the reposting, but this makes things easier with automated CI. > > This posting just drops the pr_warn() calls from the new functions. We > were still seeing some warnings during (expected) times that debugfs > file creation would fail. debugfs already throws warnings when these > things fail unexpectedly, so these warnings are unwanted when dentry > creation fails before debugfs is up. Hm, so FWIW we hit a lockdep issue now raw: https://netdev-3.bots.linux.dev/vmksft-tcp-ao-dbg/results/142540/4-connect-deny-ipv6/stderr decoded: https://netdev-3.bots.linux.dev/vmksft-tcp-ao-dbg/results/142540/vm-crash-thr0-10 I suspect this may just be "merge window fun", since we forwarded our trees to Linus's since your v11? [ 14.281410][ C0] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 14.281692][ C0] swapper/0/0 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 14.281974][ C0] ffffffff9e1c5af8 (pin_fs_lock){+.?.}-{3:3}, at: simple_pin_fs+0x24/0x150 [ 14.282373][ C0] {SOFTIRQ-ON-W} state was registered at: [ 14.282614][ C0] __lock_acquire+0x20b/0x7e0 [ 14.282849][ C0] lock_acquire.part.0+0xb6/0x240 [ 14.283072][ C0] _raw_spin_lock+0x33/0x40 [ 14.283298][ C0] simple_pin_fs+0x24/0x150 [ 14.283524][ C0] start_creating.part.0+0x52/0x310 [ 14.283752][ C0] debugfs_create_dir+0x6a/0x540 [ 14.283977][ C0] component_debug_init+0x17/0x30 [ 14.284206][ C0] do_one_initcall+0x8f/0x1e0 [ 14.284451][ C0] do_initcalls+0x176/0x280 [ 14.284679][ C0] kernel_init_freeable+0x22d/0x300 [ 14.284907][ C0] kernel_init+0x20/0x200 [ 14.285131][ C0] ret_from_fork+0x240/0x320 [ 14.285359][ C0] ret_from_fork_asm+0x1a/0x30 [ 14.285580][ C0] irq event stamp: 410868 [ 14.285750][ C0] hardirqs last enabled at (410868): [] _raw_spin_unlock_irqrestore+0x5d/0x80 [ 14.286200][ C0] hardirqs last disabled at (410867): [] _raw_spin_lock_irqsave+0x5b/0x60 [ 14.286653][ C0] softirqs last enabled at (409604): [] handle_softirqs+0x358/0x620 [ 14.287061][ C0] softirqs last disabled at (409635): [] __irq_exit_rcu+0xfa/0x160