From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) (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 3554B2EBBB7; Wed, 19 Nov 2025 17:58:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=216.40.44.10 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763575125; cv=none; b=Gxk/zeVOkY5GWXDOUa8t13LXLbTDp3KwxzO8okV08NUV3ZuxJZxvYvyyVzpy/I867TVCs5ftt7SqPBT9PT+ACJ+WNW+JLdvsozrFZyrBX1RgVgkeBw+qJysDeSIVLfB22WXVaO/lncPoktshK7Hd1R3AKwGL9gGyF78cPl4Kie0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763575125; c=relaxed/simple; bh=kYjc7AUSoKczd6a1nR8PezTDOKfA2MimUMNaPmkVbEY=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=T2rz9Fj/MdwFRCJrIAoaml4kv0qU9p6+97WLOsLiCdC6FN65LvYQ1ym6OxUxDVvbPQBfui6O/F0uTFVDVNDQCNZGYfx3VVU5bziyYSmwhAa1U8/mA36ug01/EJidsWJitRnM+bg3MpusMCLu6+EOpIAC70Q30OuYNGMAHECcvF4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org; spf=pass smtp.mailfrom=goodmis.org; arc=none smtp.client-ip=216.40.44.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=goodmis.org Received: from omf18.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 3F21889882; Wed, 19 Nov 2025 17:58:36 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf18.hostedemail.com (Postfix) with ESMTPA id 04C6630; Wed, 19 Nov 2025 17:58:33 +0000 (UTC) Date: Wed, 19 Nov 2025 12:59:03 -0500 From: Steven Rostedt To: Namhyung Kim Cc: Thomas Richter , linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, linux-perf-users@vger.kernel.org, acme@kernel.org, agordeev@linux.ibm.com, gor@linux.ibm.com, sumanthk@linux.ibm.com, hca@linux.ibm.com, japo@linux.ibm.com Subject: Re: [PATCH Linux-next] perf test: Fix test case perf trace BTF general tests Message-ID: <20251119125903.417f595e@gandalf.local.home> In-Reply-To: References: <20251117124359.75604-1-tmricht@linux.ibm.com> <20251118132451.29a35127@gandalf.local.home> X-Mailer: Claws Mail 3.20.0git84 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspamout04 X-Rspamd-Queue-Id: 04C6630 X-Stat-Signature: hmhzk9tx4ftwxzhin3i8137syi6y38j8 X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX1/C+w+oo5oaHCcTt5ftk0o6BQGum86oSic= X-HE-Tag: 1763575113-918048 X-HE-Meta: U2FsdGVkX1+K91x+L7qCqI+J8jmCqEOKUdpR7bGQOvpK+HNRZklsgAxx5RtDir3qvbSo0W5l6CBR/5NTI4jyer/Nm1oQbBV+FxZnqS8gHyCoyxbRaStUN54/wVSwPrgcCOs+ISlo3wWc2pevayScRQxlZSkn/hVPn920acnZSx4qR+nBlD31FWLx2yF4F9ZifU1FsPD0rB40g3bLmRt3V4W9QhQKA00Co9prnM69H3MlLqhHVujr03VbGMXxEGg3uiJregGpHTivUjHNBTfod3otfMYFK+QTAylBk+idIYXGuZQuSvheQoQhlN45AHM86cQV8VIzJuwDCUNjCHI/uTsO6bo906h0 On Tue, 18 Nov 2025 20:36:46 -0800 Namhyung Kim wrote: > > Really? It still uses libtraceevent right? I made sure that this didn't > > break trace-cmd and thought that perf would work too. > > It doesn't completely break perf trace but added new parameter for the > write syscall at the end. IIUC perf trace iterates the format fields > after __syscall_nr and take them all as syscall parameters. Is this a regression? Or can perf be fixed? I just ran it and I have this: 542.337 ( 0.131 ms): sshd-session/1189 write(fd: 7, buf: , count: 268) = 268 I haven't tried it without the patches. Does it usually show what "buf" is? Now with the reading of user space, it can show the content too! -- Steve