From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 D662074C1B for ; Fri, 13 Sep 2024 16:04:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726243461; cv=none; b=i36n6EuaBo/41R9OD73y3emdIbXAdE7czmJB8lIKez1aNi7kdDo5m6klpEdaDP9UKgQ+XHTpkUUGBJFjyEwE1LwJBSOISQ3cYLRjDcio836ic/vPoKbpmiV1nMXZZLjCBXPq405BmVr3ifjq9SRnjEkO+F8hlx/leQoPgN7k4+c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726243461; c=relaxed/simple; bh=NfO8PQsdFTw2NJ0rNaRUatmDxQ3RMvr1qwD92F1+mdI=; h=From:In-Reply-To:References:To:Cc:Subject:MIME-Version: Content-Type:Date:Message-ID; b=Ft7tx6Nh/etwGQidw+s91Ve11A5KOs82m7U6I8NL0mM7W47/PdbKKWwkxaWv+TE1Y9BekicN04lZk+OFeWmHkajZDCL2iCXeDaGzyyhBegldvzAbu82+YRBea9xasgYntrjcC2vwdIKJRGElHQbgXoblJBATj3SwGf/zbTgVneA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=E9RH3QJ+; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="E9RH3QJ+" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1726243459; 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=NfO8PQsdFTw2NJ0rNaRUatmDxQ3RMvr1qwD92F1+mdI=; b=E9RH3QJ+a07YTbMoZoLFf6toXDRSCPGIdJLTuWWtZvX47Wb9Fhj7NE5ZsB89T4H9fAk06W p+dEsQlSLE32P34XXJguGgmFz+PahFInVExCXihcSyPaycfAzI6Fe8bQiy8Xzath7M13w0 1YOML4Kv+KwqqznX4Nq6VqPQPz1qPC0= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-501-S8xWBQA1P72CQYcCth2Elw-1; Fri, 13 Sep 2024 12:04:15 -0400 X-MC-Unique: S8xWBQA1P72CQYcCth2Elw-1 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id EEDD21955F3E; Fri, 13 Sep 2024 16:04:12 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.42.28.67]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 0DFCC1956048; Fri, 13 Sep 2024 16:04:07 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: References: <0fc8c3e7-e5d2-40db-8661-8c7199f84e43@kernel.dk> To: Chris Mason Cc: dhowells@redhat.com, Linus Torvalds , Jens Axboe , Matthew Wilcox , Christian Theune , linux-mm@kvack.org, "linux-xfs@vger.kernel.org" , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Daniel Dao , Dave Chinner , regressions@lists.linux.dev, regressions@leemhuis.info Subject: Re: Known and unfixed active data loss bug in MM + XFS with large folios since Dec 2021 (any kernel from 6.1 upwards) 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-ID: <1368974.1726243446.1@warthog.procyon.org.uk> Date: Fri, 13 Sep 2024 17:04:06 +0100 Message-ID: <1368975.1726243446@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Chris Mason wrote: > I've mentioned this in the past to both Willy and Dave Chinner, but so > far all of my attempts to reproduce it on purpose have failed. Could it be a splice bug? David