From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yw1-x112d.google.com (mail-yw1-x112d.google.com [IPv6:2607:f8b0:4864:20::112d]) by sourceware.org (Postfix) with ESMTPS id 926A2385842D for ; Mon, 12 Jun 2023 15:40:19 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 926A2385842D Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=dneg.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=dneg.com Received: by mail-yw1-x112d.google.com with SMTP id 00721157ae682-56d378b75f0so8198487b3.1 for ; Mon, 12 Jun 2023 08:40:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dneg.com; s=google; t=1686584418; x=1689176418; h=to:subject:message-id:date:from:mime-version:from:to:cc:subject :date:message-id:reply-to; bh=yPc0aSOBnf+HfzneUjildoZ5y42up0B10goqo7nlZPQ=; b=Szq+ItTviyLzvRduse5ne+1CheTZYfqEpHsUFB1ZhofgCoi0rEKg2cJOQVy/q41J6m DoJV/jhr7b55XqC+iVKan4SW1OqycKKkwZrdcparQ/T6xWgzxFQQln6oUh7FKZ81Sv/+ dIKN5HiXjLboSWIj6Nnt2zOJylMXKRAvu3h1WLjAqWr9SxrDlEZZuRuULzPHZNlUZk6B zhk31oyX4uZ5I5rbpARGa6WPdcvFxsgxlg1z1+vt0Rh8YdoAUtn5wUmrbhjRtjAqdJ6b U1figU6jBHjB4hf8sJBd9yxNq/uecRxu1Go8z3jTZ22f6Kbkpute2gLh0ykOX+FVfTjG 5Mow== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686584418; x=1689176418; h=to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=yPc0aSOBnf+HfzneUjildoZ5y42up0B10goqo7nlZPQ=; b=F6i+A1Ucwj1Cu8k/oSIHbKmGiarz6KBkzJpkueYyHZdM3BHv0gQXJx0BiHJw7RfdhC LN9TYOyV0pxnefT5QK9ckWNyiMfHDE1la2HDlIO3VCqHOrm/vpfbGn/0UVueHuG8JPoU cTKN0kaj0sIWnjNzBMX50UAesGWRoM0gS2dFYv8hpP/4GYbP7JxwGyqm/FVEz+rOeKZT 89xs1rkOZ00Tz0VWSVHx8MuYjmcrj+DWtZ3qZTluGnKEeMNC7atI8n35ulT7hGO8gb5z GhkXn/2wS7u3XJICGInNAA8rAOshf9glfzKnOojgi7DMvIlHHqIQgl4JgKy2K6mFaXyq 2Zig== X-Gm-Message-State: AC+VfDxzMSIzrWo89dU6l89sIlOHt9zzoMNbxVmDG7aqLPF/P80idUOq i96NYlTKl3mPy/sxWQHBLPO7mJFuEIeho06sG9WXKrhyrOmkL0opFqY= X-Google-Smtp-Source: ACHHUZ5HSFlqZFTSUQ1NEqx9b8OnZkxA6CIv3R6vdNpF0pStFG7i+QgRINNZDIEZYHQQdJIV3jdbBxQtZiPpiLjlgHo= X-Received: by 2002:a0d:d942:0:b0:561:b7bb:9cc with SMTP id b63-20020a0dd942000000b00561b7bb09ccmr10289404ywe.16.1686584418505; Mon, 12 Jun 2023 08:40:18 -0700 (PDT) MIME-Version: 1.0 From: Daire Byrne Date: Mon, 12 Jun 2023 16:39:41 +0100 Message-ID: Subject: vfs.add_to_page_cache not working anymore? To: systemtap Content-Type: multipart/alternative; boundary="00000000000026308405fdf08938" X-Spam-Status: No, score=-0.2 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,HTML_MESSAGE,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: --00000000000026308405fdf08938 Content-Type: text/plain; charset="UTF-8" I have recently updated my kernel (v6.3) and with systemtap version (v4.8), an old systemtap script I was using has stopped working. It looks like I was counting pages added via vfs.add_to_page_cache as a means to work out file reads (over NFS) per pid. But this function no longer seem to hit at all for me anymore: stap -e 'probe vfs.add_to_page_cache { printf("Works.\n"); exit() }' I am aware that v4.9 is the latest systemtap, but I have been struggling to get it to compile with the new jupyter stuff (my python version is too old). Anyway, any help or pointers for vfs.add_to_page_cache greatly appreciated. Daire --00000000000026308405fdf08938--