From: Thiago Jung Bauermann <bauerman@linux.ibm.com>
To: Hari Bathini <hbathini@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>,
Andrew Morton <akpm@linux-foundation.org>,
Mahesh J Salgaonkar <mahesh@linux.ibm.com>,
Sourabh Jain <sourabhjain@linux.ibm.com>,
Vivek Goyal <vgoyal@redhat.com>, Dave Young <dyoung@redhat.com>,
Petr Tesarik <ptesarik@suse.cz>,
linuxppc-dev <linuxppc-dev@ozlabs.org>,
Kexec-ml <kexec@lists.infradead.org>,
lkml <linux-kernel@vger.kernel.org>,
Pingfan Liu <piliu@redhat.com>,
Eric Biederman <ebiederm@xmission.com>,
Mimi Zohar <zohar@linux.ibm.com>,
Nayna Jain <nayna@linux.ibm.com>
Subject: Re: [RESEND PATCH v5 08/11] ppc64/kexec_file: setup backup region for kdump kernel
Date: Mon, 27 Jul 2020 23:37:08 -0300 [thread overview]
Message-ID: <87d04gxt4b.fsf@morokweng.localdomain> (raw)
In-Reply-To: <159579235754.5790.5203600072984600891.stgit@hbathini>
Hari Bathini <hbathini@linux.ibm.com> writes:
> Though kdump kernel boots from loaded address, the first 64KB of it is
> copied down to real 0. So, setup a backup region and let purgatory
> copy the first 64KB of crashed kernel into this backup region before
> booting into kdump kernel. Update reserve map with backup region and
> crashed kernel's memory to avoid kdump kernel from accidentially using
> that memory.
>
> Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
--
Thiago Jung Bauermann
IBM Linux Technology Center
WARNING: multiple messages have this Message-ID (diff)
From: Thiago Jung Bauermann <bauerman@linux.ibm.com>
To: Hari Bathini <hbathini@linux.ibm.com>
Cc: Pingfan Liu <piliu@redhat.com>, Mimi Zohar <zohar@linux.ibm.com>,
Nayna Jain <nayna@linux.ibm.com>, Petr Tesarik <ptesarik@suse.cz>,
Mahesh J Salgaonkar <mahesh@linux.ibm.com>,
Sourabh Jain <sourabhjain@linux.ibm.com>,
lkml <linux-kernel@vger.kernel.org>,
linuxppc-dev <linuxppc-dev@ozlabs.org>,
Eric Biederman <ebiederm@xmission.com>,
Andrew Morton <akpm@linux-foundation.org>,
Dave Young <dyoung@redhat.com>,
Kexec-ml <kexec@lists.infradead.org>,
Vivek Goyal <vgoyal@redhat.com>
Subject: Re: [RESEND PATCH v5 08/11] ppc64/kexec_file: setup backup region for kdump kernel
Date: Mon, 27 Jul 2020 23:37:08 -0300 [thread overview]
Message-ID: <87d04gxt4b.fsf@morokweng.localdomain> (raw)
In-Reply-To: <159579235754.5790.5203600072984600891.stgit@hbathini>
Hari Bathini <hbathini@linux.ibm.com> writes:
> Though kdump kernel boots from loaded address, the first 64KB of it is
> copied down to real 0. So, setup a backup region and let purgatory
> copy the first 64KB of crashed kernel into this backup region before
> booting into kdump kernel. Update reserve map with backup region and
> crashed kernel's memory to avoid kdump kernel from accidentially using
> that memory.
>
> Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
--
Thiago Jung Bauermann
IBM Linux Technology Center
WARNING: multiple messages have this Message-ID (diff)
From: Thiago Jung Bauermann <bauerman@linux.ibm.com>
To: Hari Bathini <hbathini@linux.ibm.com>
Cc: Pingfan Liu <piliu@redhat.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Mimi Zohar <zohar@linux.ibm.com>,
Nayna Jain <nayna@linux.ibm.com>, Petr Tesarik <ptesarik@suse.cz>,
Mahesh J Salgaonkar <mahesh@linux.ibm.com>,
Sourabh Jain <sourabhjain@linux.ibm.com>,
lkml <linux-kernel@vger.kernel.org>,
linuxppc-dev <linuxppc-dev@ozlabs.org>,
Eric Biederman <ebiederm@xmission.com>,
Andrew Morton <akpm@linux-foundation.org>,
Dave Young <dyoung@redhat.com>,
Kexec-ml <kexec@lists.infradead.org>,
Vivek Goyal <vgoyal@redhat.com>
Subject: Re: [RESEND PATCH v5 08/11] ppc64/kexec_file: setup backup region for kdump kernel
Date: Mon, 27 Jul 2020 23:37:08 -0300 [thread overview]
Message-ID: <87d04gxt4b.fsf@morokweng.localdomain> (raw)
In-Reply-To: <159579235754.5790.5203600072984600891.stgit@hbathini>
Hari Bathini <hbathini@linux.ibm.com> writes:
> Though kdump kernel boots from loaded address, the first 64KB of it is
> copied down to real 0. So, setup a backup region and let purgatory
> copy the first 64KB of crashed kernel into this backup region before
> booting into kdump kernel. Update reserve map with backup region and
> crashed kernel's memory to avoid kdump kernel from accidentially using
> that memory.
>
> Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
--
Thiago Jung Bauermann
IBM Linux Technology Center
_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec
next prev parent reply other threads:[~2020-07-28 2:37 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-26 19:36 [RESEND PATCH v5 00/11] ppc64: enable kdump support for kexec_file_load syscall Hari Bathini
2020-07-26 19:36 ` Hari Bathini
2020-07-26 19:36 ` Hari Bathini
2020-07-26 19:36 ` [RESEND PATCH v5 01/11] kexec_file: allow archs to handle special regions while locating memory hole Hari Bathini
2020-07-26 19:36 ` Hari Bathini
2020-07-26 19:36 ` Hari Bathini
2020-07-26 19:36 ` [RESEND PATCH v5 02/11] powerpc/kexec_file: mark PPC64 specific code Hari Bathini
2020-07-26 19:36 ` Hari Bathini
2020-07-26 19:36 ` Hari Bathini
2020-07-26 19:37 ` [RESEND PATCH v5 03/11] powerpc/kexec_file: add helper functions for getting memory ranges Hari Bathini
2020-07-26 19:37 ` Hari Bathini
2020-07-26 19:37 ` Hari Bathini
2020-07-28 12:58 ` Michael Ellerman
2020-07-28 12:58 ` Michael Ellerman
2020-07-28 12:58 ` Michael Ellerman
2020-07-26 19:38 ` [RESEND PATCH v5 04/11] ppc64/kexec_file: avoid stomping memory used by special regions Hari Bathini
2020-07-26 19:38 ` Hari Bathini
2020-07-26 19:38 ` Hari Bathini
2020-07-26 19:38 ` [RESEND PATCH v5 05/11] powerpc/drmem: make lmb walk a bit more flexible Hari Bathini
2020-07-26 19:38 ` Hari Bathini
2020-07-26 19:38 ` Hari Bathini
2020-07-26 19:38 ` [RESEND PATCH v5 06/11] ppc64/kexec_file: restrict memory usage of kdump kernel Hari Bathini
2020-07-26 19:38 ` Hari Bathini
2020-07-26 19:38 ` Hari Bathini
2020-07-28 2:10 ` Thiago Jung Bauermann
2020-07-28 2:10 ` Thiago Jung Bauermann
2020-07-28 2:10 ` Thiago Jung Bauermann
2020-07-28 13:44 ` Michael Ellerman
2020-07-28 13:44 ` Michael Ellerman
2020-07-28 13:44 ` Michael Ellerman
2020-07-28 19:34 ` Hari Bathini
2020-07-28 19:34 ` Hari Bathini
2020-07-28 19:34 ` Hari Bathini
2020-07-30 0:36 ` kernel test robot
2020-07-26 19:39 ` [RESEND PATCH v5 07/11] ppc64/kexec_file: enable early kernel's OPAL calls Hari Bathini
2020-07-26 19:39 ` Hari Bathini
2020-07-26 19:39 ` Hari Bathini
2020-07-28 2:17 ` Thiago Jung Bauermann
2020-07-28 2:17 ` Thiago Jung Bauermann
2020-07-28 2:17 ` Thiago Jung Bauermann
2020-07-28 13:46 ` Michael Ellerman
2020-07-28 13:46 ` Michael Ellerman
2020-07-28 13:46 ` Michael Ellerman
2020-07-28 19:24 ` Hari Bathini
2020-07-28 19:24 ` Hari Bathini
2020-07-28 19:24 ` Hari Bathini
2020-07-29 1:15 ` Michael Ellerman
2020-07-29 1:15 ` Michael Ellerman
2020-07-29 1:15 ` Michael Ellerman
2020-07-26 19:39 ` [RESEND PATCH v5 08/11] ppc64/kexec_file: setup backup region for kdump kernel Hari Bathini
2020-07-26 19:39 ` Hari Bathini
2020-07-26 19:39 ` Hari Bathini
2020-07-28 2:37 ` Thiago Jung Bauermann [this message]
2020-07-28 2:37 ` Thiago Jung Bauermann
2020-07-28 2:37 ` Thiago Jung Bauermann
2020-07-28 14:11 ` Michael Ellerman
2020-07-28 14:11 ` Michael Ellerman
2020-07-28 14:11 ` Michael Ellerman
2020-07-26 19:39 ` [RESEND PATCH v5 09/11] ppc64/kexec_file: prepare elfcore header for crashing kernel Hari Bathini
2020-07-26 19:39 ` Hari Bathini
2020-07-26 19:39 ` Hari Bathini
2020-07-26 19:40 ` [RESEND PATCH v5 10/11] ppc64/kexec_file: add appropriate regions for memory reserve map Hari Bathini
2020-07-26 19:40 ` Hari Bathini
2020-07-26 19:40 ` Hari Bathini
2020-07-26 19:40 ` [RESEND PATCH v5 11/11] ppc64/kexec_file: fix kexec load failure with lack of memory hole Hari Bathini
2020-07-26 19:40 ` Hari Bathini
2020-07-26 19:40 ` Hari Bathini
2020-07-28 2:32 ` [RESEND PATCH v5 00/11] ppc64: enable kdump support for kexec_file_load syscall piliu
2020-07-28 2:32 ` piliu
2020-07-28 2:32 ` piliu
2020-07-30 6:05 ` Hari Bathini
2020-07-30 6:05 ` Hari Bathini
2020-07-30 6:05 ` Hari Bathini
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87d04gxt4b.fsf@morokweng.localdomain \
--to=bauerman@linux.ibm.com \
--cc=akpm@linux-foundation.org \
--cc=dyoung@redhat.com \
--cc=ebiederm@xmission.com \
--cc=hbathini@linux.ibm.com \
--cc=kexec@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@ozlabs.org \
--cc=mahesh@linux.ibm.com \
--cc=mpe@ellerman.id.au \
--cc=nayna@linux.ibm.com \
--cc=piliu@redhat.com \
--cc=ptesarik@suse.cz \
--cc=sourabhjain@linux.ibm.com \
--cc=vgoyal@redhat.com \
--cc=zohar@linux.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.