From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Peter Enderborg <Peter.Enderborg@sony.com>
Cc: Mark Brown <broonie@kernel.org>, Yingsha Xu <ysxu@hust.edu.cn>,
Serge Semin <fancer.lancer@gmail.com>,
linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] spi: remove return value check of debugfs_create_dir()
Date: Mon, 24 Apr 2023 15:22:53 +0200 [thread overview]
Message-ID: <2023042431-crook-stable-5749@gregkh> (raw)
In-Reply-To: <3164e897-a423-3948-d50a-f2bdd4ad05e9@sony.com>
On Mon, Apr 24, 2023 at 03:17:09PM +0200, Peter Enderborg wrote:
> On 4/24/23 14:53, Greg Kroah-Hartman wrote:
> >
> >>> We can do things with the debug information without filesystem enabled.
> > What exactly do you mean by this?
> >
> >
> We can read out data from kernel with a ramdumper and analyse with crash.
>
> See https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/kernel_administration_guide/kernel_crash_dump_guide
>
> If it is useful or not I can not say, but the dws->regset. is lost and can not be read with a post mortem debugger.
What is "dws"? What is "regset"?
What is the root problem here?
confused,
greg k-h
next prev parent reply other threads:[~2023-04-24 13:40 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-23 6:11 [PATCH] spi: remove return value check of debugfs_create_dir() Yingsha Xu
2023-04-24 11:54 ` Mark Brown
2023-04-24 12:20 ` Peter Enderborg
2023-04-24 12:32 ` Mark Brown
2023-04-24 12:53 ` Greg Kroah-Hartman
2023-04-24 13:00 ` Mark Brown
2023-04-24 13:08 ` Greg Kroah-Hartman
2023-04-24 13:17 ` Mark Brown
2023-04-24 13:17 ` Peter Enderborg
2023-04-24 13:22 ` Greg Kroah-Hartman [this message]
2023-04-24 13:54 ` Peter Enderborg
2023-04-25 5:31 ` Greg Kroah-Hartman
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