From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 10EF12E8B7D for ; Thu, 16 Oct 2025 06:59:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760597969; cv=none; b=SFgqRtuMJnHRFw6WVMFk7otrOwCutQwAnDHxfuUuHSoZN4AWMtKmjKcDsIyf09T8WPTOyI1h9i7OY3Nc94JSXSPFs2HklVJe8mU2dWblhuEU8ibv/DZQp37HKSlLZ9l1Hugh7GOFRYJ0qn8UaxxU4dj02EUgHPfNLwzVXrrueos= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760597969; c=relaxed/simple; bh=cvu+uenW22QfiV62dQCnsabMbavdJ06/e4yhzKH8mks=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=QLjT5cPeuZLeXlt7oeiX+NzaROPkqNQoyl6/v/K4ZWOdIS+DZBGEG4Kp8gTmHh03mpjRsWr6/bB8SGQRN5EL8ae1yehVRNH13ESGlAgDJRN257APTxLovNU4umht0IRlhIpAdTvX/be8Q5qfSxKLeArYVZzg6NGQ5uiOgZJNY5w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=qP6D1LVq; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="qP6D1LVq" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=nr3yqyKsaca/JdfCaxMOz58xWmylzoios5yMz2cVGBI=; b=qP6D1LVqVMIj/o52WJdfvCMazz ZM0kzqUghod0uEUgC8kNkSi8RJ5Ahv7nEmEPH4yVd0pXbObl2DIvyECDbh6XvxTy9qtM+pf7xS/hw mCCksSSF+1D4AXMWB2Qx8mbDhGy3FSCxxYc+rPomH9nnJLG95d+mME4Fd3FBIstLpsIH4rPB4NMiI FgH+kBgrzeEmCDnjpwWurRytjwDgzWyKAgenivsGFjdQ12rEIkv8elbg6q/5NBohEQKX+Ce5wVmrl /x1S6sqRfXPEaSyZHEHiua69E/tgLrm9rdyFoFYDoaIu7Myw8+4M8P9RIUmQR0/OCfnZh14AHCoqT EUybRmkQ==; Received: from hch by bombadil.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1v9HxP-00000003hwt-2Yzl; Thu, 16 Oct 2025 06:59:27 +0000 Date: Wed, 15 Oct 2025 23:59:27 -0700 From: Christoph Hellwig To: Johannes Thumshirn Cc: Naohiro Aota , linux-btrfs@vger.kernel.org Subject: Re: zbd/009 (btrfs on zone gaps) fail on current Linus tree Message-ID: References: Precedence: bulk X-Mailing-List: linux-btrfs@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-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html I've bisected the hang to: commit 04147d8394e80acaaebf0365f112339e8b606c05 (HEAD) Author: Naohiro Aota Date: Wed Jul 16 16:59:55 2025 +0900 btrfs: zoned: limit active zones to max_open_zones with that patch zbd/009 hangs 100% for my config, and without it, it works fine 100%. On Wed, Oct 08, 2025 at 02:09:00PM +0000, Johannes Thumshirn wrote: > On 10/8/25 8:07 AM, Johannes Thumshirn wrote: > > On 10/8/25 8:02 AM, hch@infradead.org wrote: > >> On Tue, Oct 07, 2025 at 11:16:08AM +0000, Johannes Thumshirn wrote: > >>> hmm how reproducible is it on your side? I cannot reproduce it (yet) > >> 100% over about a dozen runs, a few of those including unrelated > >> patches. > >> > >> My kernel .config and qemu command line are attached. > >> > > OK I'll give it a shot. For my config + qemu it survived 250 runs of > > zbd/009 yesterday without a hang :( > > > > > Nope, even with your kconfig no success on recreating the bug. > ---end quoted text---