From: John Ogness <john.ogness@linutronix.de>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Sebastien Fabre <sebastien.fabre@sigfox.com>,
"linux-rt-users\@vger.kernel.org"
<linux-rt-users@vger.kernel.org>
Subject: Re: Crash tool issue since printk re-implementation
Date: Fri, 14 Feb 2020 14:42:57 +0100 [thread overview]
Message-ID: <874kvtffoe.fsf@linutronix.de> (raw)
In-Reply-To: <20200214123431.rsgw62fftclifs3l@linutronix.de> (Sebastian Andrzej Siewior's message of "Fri, 14 Feb 2020 13:34:31 +0100")
On 2020-02-14, Sebastian Andrzej Siewior <bigeasy@linutronix.de> wrote:
> On 2020-02-12 12:10:23 [+0000], Sebastien Fabre wrote:
>> Since kernel v5.0, PREEMPT_RT patches contain printk
>> re-implementation. This re-implementation removes some log symbols in
>> VMCOREINFO and crash tool cannot retrieve kernel logs (because
>> symbols no more exist). Is this impact on crash expected? If so, how
>> can we retrieve a functional crash tool with kernel v5.0 (and
>> following) ?
>
> It is known, yes. I'm aware of crash and the gdb scritps should also
> suffer from this.
Perhaps this should be listed under the "Known issues" of the PREEMPT_RT
release announcements.
John Ogness
next prev parent reply other threads:[~2020-02-14 13:43 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-12 12:10 Crash tool issue since printk re-implementation Sebastien Fabre
2020-02-14 12:34 ` Sebastian Andrzej Siewior
2020-02-14 13:42 ` John Ogness [this message]
2020-02-14 14:11 ` Gene Heskett
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