From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Sebastien Fabre <sebastien.fabre@sigfox.com>
Cc: "linux-rt-users@vger.kernel.org" <linux-rt-users@vger.kernel.org>,
John Ogness <john.ogness@linutronix.de>
Subject: Re: Crash tool issue since printk re-implementation
Date: Fri, 14 Feb 2020 13:34:31 +0100 [thread overview]
Message-ID: <20200214123431.rsgw62fftclifs3l@linutronix.de> (raw)
In-Reply-To: <PR2PR08MB4681072153BF9E79416BD305951B0@PR2PR08MB4681.eurprd08.prod.outlook.com>
On 2020-02-12 12:10:23 [+0000], Sebastien Fabre wrote:
> Hello,
Hi,
> 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.
I'm not sure anyone took a look at it (yet) and I don't think that the
`crash' tool will accept the patches unless final printk rework is
merged upstream.
> Thanks,
> Fabre Sebastien
Sebastian
next prev parent reply other threads:[~2020-02-14 12:34 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 [this message]
2020-02-14 13:42 ` John Ogness
2020-02-14 14:11 ` Gene Heskett
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