Received-SPF: pass (google.com: domain of linux-kernel+bounces-11829-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) client-ip=2604:1380:45e3:2400::1;
Precedence: bulk
MIME-Version: 1.0
References: <20231223015131.2836090-1-lb@semihalf.com> <CAJfuBxyN+t6OgzzX3ZT6MxdMT6Awr29orJAucVMDz2zmEFCDDQ@mail.gmail.com>
In-Reply-To: <CAJfuBxyN+t6OgzzX3ZT6MxdMT6Awr29orJAucVMDz2zmEFCDDQ@mail.gmail.com>
From: jim.cromie@gmail.com
Date: Tue, 26 Dec 2023 21:44:19 -0700
Message-ID: <CAJfuBxz24vu5d1v=mKfRTD5OwrC_bvWZeD-PubaCFOZbmihjiA@mail.gmail.com>
Subject: Re: [PATCH v3 00/22] dyndbg: add support for writing debug logs to trace
To: =?UTF-8?Q?=C5=81ukasz_Bartosik?= <lb@semihalf.com>
Cc: Jason Baron <jbaron@akamai.com>, Andrew Morton <akpm@linux-foundation.org>, 
	Kees Cook <keescook@chromium.org>, Douglas Anderson <dianders@chromium.org>, 
	Guenter Roeck <groeck@google.com>, Yaniv Tzoreff <yanivt@google.com>, Benson Leung <bleung@google.com>, 
	Steven Rostedt <rostedt@goodmis.org>, Vincent Whitchurch <vincent.whitchurch@axis.com>, 
	Pekka Paalanen <ppaalanen@gmail.com>, Sean Paul <seanpaul@chromium.org>, 
	Daniel Vetter <daniel@ffwll.ch>, Simon Ser <contact@emersion.fr>, 
	John Ogness <john.ogness@linutronix.de>, Petr Mladek <pmladek@suse.com>, 
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>, linux-kernel@vger.kernel.org, 
	upstream@semihalf.com, Greg KH <gregkh@linuxfoundation.org>
Content-Type: text/plain; charset="UTF-8"

> >
> > Jim, I made a few changes to the test script dd-selftest.rc you created
> > and I also added new test scenarios. You can find the entire patchset
> > with the test script changes on top here
> > https://chromium.googlesource.com/chromiumos/third_party/kernel/+log/refs/sandbox/ukaszb/dyndbg_trace_v3
> > I wonder where would be the proper place to store the test script
> > (upstream, your github.com:jimc/linux.git)
> > Do you have a suggestion for that ?
> >
>
> I got it (your HEAD), renamed and put it in:
> tools/testing/selftests/dynamic_debug/
> and copied & modified Makefile and config from ../users/
> I added your SOB, that seems proper.
>

meh.
my select-paste of your HEAD dropped all the whitespace.
how annoying.


> nice additions.  and I like the colors.  maybe they belong in lib.mk,
> but thats 4 later.
>
> and tweaked the modules / DUTs to *hopefully* get stable callsite counts
> from the tests on them, in virtually any usable config.
> DUTs: file init/main, module mm_init, and module test_dynamic_debug (a
> config constraint)
> The ref-counts are taken from a default virtme-ng -k config on my x86-64 box
>
> I now pass tests up to:
>
> [root@v6 wk-proof]# ./tools/testing/selftests/dynamic_debug/dyndbg_selftest.sh
> ...
> # TEST_PRIVATE_TRACE_6
> [ 1009.296557] dyndbg: read 3 bytes from userspace
> [ 1009.296876] dyndbg: query 0: <=_> on module: <*>
> [ 1009.297171] dyndbg: processed 1 queries, with 1559 matches, 0 errs
> [ 1009.311621] dyndbg: read 39 bytes from userspace
> [ 1009.312032] dyndbg: query 0: <open
> A_bit_lengthy_trace_instance_name> on module: <*>
> [ 1009.312569] dyndbg: instance is already opened
> name:A_bit_lengthy_trace_instance_name
> [ 1009.313063] dyndbg: processed 1 queries, with 0 matches, 1 errs
> : ./tools/testing/selftests/dynamic_debug/dyndbg_selftest.sh:454
> ddcmd() expected to exit with code 0
> Error: 'File exists'
>

_7 has some obsolete counts, after previous $modname changes