From: John Ogness <john.ogness@linutronix.de>
To: Dave Young <dyoung@redhat.com>
Cc: Petr Mladek <pmladek@suse.com>,
Andrea Parri <parri.andrea@gmail.com>,
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
Paul McKenney <paulmck@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
Steven Rostedt <rostedt@goodmis.org>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH v3 0/3] printk: replace ringbuffer
Date: Thu, 25 Jun 2020 16:13:52 +0200 [thread overview]
Message-ID: <87wo3vi673.fsf@jogness.linutronix.de> (raw)
In-Reply-To: <20200625071959.GA18744@dhcp-128-65.nay.redhat.com> (Dave Young's message of "Thu, 25 Jun 2020 15:19:59 +0800")
Hi Dave,
On 2020-06-25, Dave Young <dyoung@redhat.com> wrote:
> On 06/18/20 at 04:55pm, John Ogness wrote:
>> Here is a v3 for the first series to rework the printk
>> subsystem. The v2 and history are here [0]. This first series
>> only replaces the existing ringbuffer implementation. No locking
>> is removed. No semantics/behavior of printk are changed.
>>
>> Reviews on the ringbuffer are still ongoing, but I was asked to
>> post this new version since several changes from v2 have been
>> already agreed upon.
>>
>> The series is based on v5.8-rc1.
>
> Do you have the kdump userspace part link so that people can try
> and do some testing?
>
> Eg. some makedumpfile/crash tool git branch etc.
I have set up github forks, each with the RFC patch on top in their
respective "printk" branch:
https://github.com/Linutronix/crash.git
https://github.com/Linutronix/makedumpfile.git
Note that for crash, only the "log" command (using debug symbols) is
implemented. The --log argument (using VMCOREINFO) is not implemented.
For makedumpfile both symbol and VMCOREINFO variants are implemented.
The VMCOREINFO implementation in makedumpfile shows that there is enough
VMCOREINFO exported. So it will not be a problem to implement that for
crash as well.
John Ogness
prev parent reply other threads:[~2020-06-25 14:14 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-18 14:49 [PATCH v3 0/3] printk: replace ringbuffer John Ogness
2020-06-18 14:49 ` [PATCH v3 1/3] crash: add VMCOREINFO macro to define offset in a struct declared by typedef John Ogness
2020-06-24 8:49 ` Petr Mladek
2020-07-04 9:30 ` Baoquan He
2020-06-18 14:49 ` [PATCH v3 2/3] printk: add lockless ringbuffer John Ogness
2020-06-29 15:32 ` Paul E. McKenney
2020-07-02 8:35 ` Petr Mladek
2020-06-18 14:49 ` [PATCH v3 3/3] printk: use the " John Ogness
2020-06-18 18:23 ` kernel test robot
2020-06-18 18:23 ` [RFC PATCH] printk: _printk_rb_static_dict can be static kernel test robot
2020-06-19 6:49 ` John Ogness
2020-06-19 12:29 ` Steven Rostedt
2020-06-25 8:16 ` truncate dict: was: Re: [PATCH v3 3/3] printk: use the lockless ringbuffer Petr Mladek
2020-06-26 13:48 ` John Ogness
2020-06-25 8:28 ` buffer allocation: was: " Petr Mladek
2020-06-26 15:02 ` John Ogness
2020-06-29 14:04 ` Petr Mladek
2020-06-29 21:57 ` John Ogness
2020-07-02 13:27 ` Petr Mladek
2020-06-25 12:09 ` record_printk_text tricks: " Petr Mladek
2020-06-25 15:25 ` Petr Mladek
2020-06-26 23:25 ` John Ogness
2020-06-25 15:17 ` pending output optimization: " Petr Mladek
2020-07-01 19:58 ` John Ogness
2020-06-25 15:20 ` syslog size unread: " Petr Mladek
2020-06-29 21:51 ` John Ogness
2020-07-02 8:25 ` lijiang
2020-07-02 9:02 ` John Ogness
2020-07-02 9:43 ` lijiang
2020-07-02 13:31 ` Petr Mladek
2020-07-04 1:12 ` lijiang
2020-07-03 11:54 ` John Ogness
2020-07-08 5:50 ` lijiang
2020-06-25 7:19 ` [PATCH v3 0/3] printk: replace ringbuffer Dave Young
2020-06-25 14:13 ` John Ogness [this message]
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