From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 376791D0DD4 for ; Fri, 6 Sep 2024 14:34:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725633292; cv=none; b=GzVihttSiQh7q/qypx90NTlfqAvB73pHOkCtbmtu9YbKRP7ZOH3CKwfzJ3zlXz758XyEwok1mSP9AuVjs20FD76wF2kkQngPeTYprf54y2Mvbhkpl1UxS3y5BQvD/DGUUwOz5QQIIeZSB1DxX3yzfZw9TiU99KGQBm4CE6j0in8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725633292; c=relaxed/simple; bh=gZpqgyEz/2MM6908txuz6sKK2S55j3sELDC0KhKmTnY=; h=From:In-Reply-To:References:To:Cc:Subject:MIME-Version: Content-Type:Date:Message-ID; b=juu9OEqzBUDdvZaT+5tvVONAIAF/UCC99Vzh34+fTuQdiJwrgtx1J7rI3kja/2MOj4mPO68rR7CU6hW/MMR4rwlKOesxXxfoJGYTl1jMZoAp7CTSupuUj8obOlXkWRemP0cn/NIS1r2MBHP057yql0X+KK2Xc2njrJhBgboB+04= 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=FQTHMwIj; arc=none smtp.client-ip=170.10.133.124 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="FQTHMwIj" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1725633290; 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=gZpqgyEz/2MM6908txuz6sKK2S55j3sELDC0KhKmTnY=; b=FQTHMwIjYYSB47rx/CYmzPvXqZzV9mkq83KfYIzGg+yPd+l1ScWe3M1zPTkn3lrxDM+i2Y d3YYbye7vkvtE7spWzitQleA3fmcYQIb1BKDnpfyZPwnfjg5JRrGFEM4pqCxBjJCf9OYOa w5tEZVyYfhUoPqXtamamNtpl6v5LX+A= Received: from mx-prod-mc-02.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-376-re_ZW_wJPmW5P5LbNbTwrQ-1; Fri, 06 Sep 2024 10:34:47 -0400 X-MC-Unique: re_ZW_wJPmW5P5LbNbTwrQ-1 Received: from mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.40]) (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-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 87D931956096; Fri, 6 Sep 2024 14:34:45 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.42.28.67]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 9047719560AA; Fri, 6 Sep 2024 14:34:43 +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: <0000000000000a78120620f2fc2b@google.com> References: <0000000000000a78120620f2fc2b@google.com> To: syzbot Cc: dhowells@redhat.com, jlayton@kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, netfs@lists.linux.dev, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [netfs?] possible deadlock in lock_mm_and_find_vma (2) Precedence: bulk X-Mailing-List: netfs@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <121385.1725633282.1@warthog.procyon.org.uk> Date: Fri, 06 Sep 2024 15:34:42 +0100 Message-ID: <121386.1725633282@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 Is this using a cachefiles cache? David