From: Baoquan He <bhe@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: David Hildenbrand <david@redhat.com>,
James Morse <james.morse@arm.com>,
kexec@lists.infradead.org, linux-mm@kvack.org,
linux-arm-kernel@lists.infradead.org,
Eric Biederman <ebiederm@xmission.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Bhupesh Sharma <bhsharma@redhat.com>
Subject: Re: [PATCH 1/3] kexec: Prevent removal of memory in use by a loaded kexec image
Date: Sat, 11 Apr 2020 11:44:14 +0800 [thread overview]
Message-ID: <20200411034414.GH2129@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20200410121013.03b609fd572504c03a666f4a@linux-foundation.org>
On 04/10/20 at 12:10pm, Andrew Morton wrote:
> It's unclear (to me) what is the status of this patchset. But it does appear that
> an new version can be expected?
As we discussed in the thread of replying to the cover letter, the
idea of this patchset is not good.
Because We tend to use kexec_file_load more and improve/enhance it in the
future, and gradually obsolete the old kexec_load interface which this
patchset is trying to fix on.
And the issue James spot is a very corner case, we have suggested
another easier way to avoid it by adding systemd service to load kexec
and monitor memory adding/removing uevent, juas as we have done for
kdump loading. Bhupesh is working on this to add a service in Fedora
and test, and will put it to RHEL too if nobody is unsatisfied.
Thanks
Baoquan
WARNING: multiple messages have this Message-ID (diff)
From: Baoquan He <bhe@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: David Hildenbrand <david@redhat.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Bhupesh Sharma <bhsharma@redhat.com>,
Anshuman Khandual <anshuman.khandual@arm.com>,
kexec@lists.infradead.org, linux-mm@kvack.org,
James Morse <james.morse@arm.com>,
Eric Biederman <ebiederm@xmission.com>,
Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/3] kexec: Prevent removal of memory in use by a loaded kexec image
Date: Sat, 11 Apr 2020 11:44:14 +0800 [thread overview]
Message-ID: <20200411034414.GH2129@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20200410121013.03b609fd572504c03a666f4a@linux-foundation.org>
On 04/10/20 at 12:10pm, Andrew Morton wrote:
> It's unclear (to me) what is the status of this patchset. But it does appear that
> an new version can be expected?
As we discussed in the thread of replying to the cover letter, the
idea of this patchset is not good.
Because We tend to use kexec_file_load more and improve/enhance it in the
future, and gradually obsolete the old kexec_load interface which this
patchset is trying to fix on.
And the issue James spot is a very corner case, we have suggested
another easier way to avoid it by adding systemd service to load kexec
and monitor memory adding/removing uevent, juas as we have done for
kdump loading. Bhupesh is working on this to add a service in Fedora
and test, and will put it to RHEL too if nobody is unsatisfied.
Thanks
Baoquan
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Baoquan He <bhe@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: David Hildenbrand <david@redhat.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Bhupesh Sharma <bhsharma@redhat.com>,
Anshuman Khandual <anshuman.khandual@arm.com>,
kexec@lists.infradead.org, linux-mm@kvack.org,
James Morse <james.morse@arm.com>,
Eric Biederman <ebiederm@xmission.com>,
Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/3] kexec: Prevent removal of memory in use by a loaded kexec image
Date: Sat, 11 Apr 2020 11:44:14 +0800 [thread overview]
Message-ID: <20200411034414.GH2129@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20200410121013.03b609fd572504c03a666f4a@linux-foundation.org>
On 04/10/20 at 12:10pm, Andrew Morton wrote:
> It's unclear (to me) what is the status of this patchset. But it does appear that
> an new version can be expected?
As we discussed in the thread of replying to the cover letter, the
idea of this patchset is not good.
Because We tend to use kexec_file_load more and improve/enhance it in the
future, and gradually obsolete the old kexec_load interface which this
patchset is trying to fix on.
And the issue James spot is a very corner case, we have suggested
another easier way to avoid it by adding systemd service to load kexec
and monitor memory adding/removing uevent, juas as we have done for
kdump loading. Bhupesh is working on this to add a service in Fedora
and test, and will put it to RHEL too if nobody is unsatisfied.
Thanks
Baoquan
_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec
next prev parent reply other threads:[~2020-04-11 3:44 UTC|newest]
Thread overview: 264+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-26 18:07 [PATCH 0/3] kexec/memory_hotplug: Prevent removal and accidental use James Morse
2020-03-26 18:07 ` James Morse
2020-03-26 18:07 ` [PATCH 1/3] kexec: Prevent removal of memory in use by a loaded kexec image James Morse
2020-03-26 18:07 ` James Morse
2020-03-27 0:43 ` Anshuman Khandual
2020-03-27 0:43 ` Anshuman Khandual
2020-03-27 2:54 ` Baoquan He
2020-03-27 2:54 ` Baoquan He
2020-03-27 15:46 ` James Morse
2020-03-27 15:46 ` James Morse
2020-03-27 2:34 ` Baoquan He
2020-03-27 2:34 ` Baoquan He
2020-03-27 9:30 ` David Hildenbrand
2020-03-27 9:30 ` David Hildenbrand
2020-03-27 16:56 ` James Morse
2020-03-27 16:56 ` James Morse
2020-03-27 17:06 ` David Hildenbrand
2020-03-27 17:06 ` David Hildenbrand
2020-03-27 18:07 ` James Morse
2020-03-27 18:07 ` James Morse
2020-03-27 18:52 ` David Hildenbrand
2020-03-27 18:52 ` David Hildenbrand
2020-03-30 13:00 ` James Morse
2020-03-30 13:00 ` James Morse
2020-03-30 13:13 ` David Hildenbrand
2020-03-30 13:13 ` David Hildenbrand
2020-03-30 17:17 ` James Morse
2020-03-30 17:17 ` James Morse
2020-03-30 18:14 ` David Hildenbrand
2020-03-30 18:14 ` David Hildenbrand
2020-04-10 19:10 ` Andrew Morton
2020-04-10 19:10 ` Andrew Morton
2020-04-10 19:10 ` Andrew Morton
2020-04-11 3:44 ` Baoquan He [this message]
2020-04-11 3:44 ` Baoquan He
2020-04-11 3:44 ` Baoquan He
2020-04-11 9:30 ` Russell King - ARM Linux admin
2020-04-11 9:30 ` Russell King - ARM Linux admin
2020-04-11 9:30 ` Russell King - ARM Linux admin
2020-04-11 9:58 ` David Hildenbrand
2020-04-11 9:58 ` David Hildenbrand
2020-04-11 9:58 ` David Hildenbrand
2020-04-12 5:35 ` Baoquan He
2020-04-12 5:35 ` Baoquan He
2020-04-12 5:35 ` Baoquan He
2020-04-12 8:08 ` Russell King - ARM Linux admin
2020-04-12 8:08 ` Russell King - ARM Linux admin
2020-04-12 8:08 ` Russell King - ARM Linux admin
2020-04-12 19:52 ` Eric W. Biederman
2020-04-12 19:52 ` Eric W. Biederman
2020-04-12 19:52 ` Eric W. Biederman
2020-04-12 20:37 ` Bhupesh SHARMA
2020-04-12 20:37 ` Bhupesh SHARMA
2020-04-12 20:37 ` Bhupesh SHARMA
2020-04-13 2:37 ` Baoquan He
2020-04-13 2:37 ` Baoquan He
2020-04-13 2:37 ` Baoquan He
2020-04-13 13:15 ` Eric W. Biederman
2020-04-13 13:15 ` Eric W. Biederman
2020-04-13 13:15 ` Eric W. Biederman
2020-04-13 23:01 ` Andrew Morton
2020-04-13 23:01 ` Andrew Morton
2020-04-13 23:01 ` Andrew Morton
2020-04-14 6:13 ` Eric W. Biederman
2020-04-14 6:13 ` Eric W. Biederman
2020-04-14 6:13 ` Eric W. Biederman
2020-04-14 6:40 ` Baoquan He
2020-04-14 6:40 ` Baoquan He
2020-04-14 6:40 ` Baoquan He
2020-04-14 6:51 ` Baoquan He
2020-04-14 6:51 ` Baoquan He
2020-04-14 6:51 ` Baoquan He
2020-04-14 8:00 ` David Hildenbrand
2020-04-14 8:00 ` David Hildenbrand
2020-04-14 8:00 ` David Hildenbrand
2020-04-14 9:22 ` Baoquan He
2020-04-14 9:22 ` Baoquan He
2020-04-14 9:22 ` Baoquan He
2020-04-14 9:22 ` Baoquan He
2020-04-14 9:37 ` David Hildenbrand
2020-04-14 9:37 ` David Hildenbrand
2020-04-14 9:37 ` David Hildenbrand
2020-04-14 9:37 ` David Hildenbrand
2020-04-14 14:39 ` Baoquan He
2020-04-14 14:39 ` Baoquan He
2020-04-14 14:39 ` Baoquan He
2020-04-14 14:39 ` Baoquan He
2020-04-14 14:49 ` David Hildenbrand
2020-04-14 14:49 ` David Hildenbrand
2020-04-14 14:49 ` David Hildenbrand
2020-04-14 14:49 ` David Hildenbrand
2020-04-15 2:35 ` Baoquan He
2020-04-15 2:35 ` Baoquan He
2020-04-15 2:35 ` Baoquan He
2020-04-15 2:35 ` Baoquan He
2020-04-16 13:31 ` David Hildenbrand
2020-04-16 13:31 ` David Hildenbrand
2020-04-16 13:31 ` David Hildenbrand
2020-04-16 13:31 ` David Hildenbrand
2020-04-16 14:02 ` Baoquan He
2020-04-16 14:02 ` Baoquan He
2020-04-16 14:02 ` Baoquan He
2020-04-16 14:02 ` Baoquan He
2020-04-16 14:09 ` David Hildenbrand
2020-04-16 14:09 ` David Hildenbrand
2020-04-16 14:09 ` David Hildenbrand
2020-04-16 14:09 ` David Hildenbrand
2020-04-16 14:36 ` Baoquan He
2020-04-16 14:36 ` Baoquan He
2020-04-16 14:36 ` Baoquan He
2020-04-16 14:36 ` Baoquan He
2020-04-16 14:47 ` David Hildenbrand
2020-04-16 14:47 ` David Hildenbrand
2020-04-16 14:47 ` David Hildenbrand
2020-04-16 14:47 ` David Hildenbrand
2020-04-21 13:29 ` David Hildenbrand
2020-04-21 13:29 ` David Hildenbrand
2020-04-21 13:29 ` David Hildenbrand
2020-04-21 13:29 ` David Hildenbrand
2020-04-21 13:57 ` David Hildenbrand
2020-04-21 13:57 ` David Hildenbrand
2020-04-21 13:57 ` David Hildenbrand
2020-04-21 13:57 ` David Hildenbrand
2020-04-21 13:59 ` Eric W. Biederman
2020-04-21 13:59 ` Eric W. Biederman
2020-04-21 13:59 ` Eric W. Biederman
2020-04-21 13:59 ` Eric W. Biederman
2020-04-21 14:30 ` David Hildenbrand
2020-04-21 14:30 ` David Hildenbrand
2020-04-21 14:30 ` David Hildenbrand
2020-04-21 14:30 ` David Hildenbrand
2020-04-22 9:17 ` Baoquan He
2020-04-22 9:17 ` Baoquan He
2020-04-22 9:17 ` Baoquan He
2020-04-22 9:17 ` Baoquan He
2020-04-22 9:24 ` David Hildenbrand
2020-04-22 9:24 ` David Hildenbrand
2020-04-22 9:24 ` David Hildenbrand
2020-04-22 9:24 ` David Hildenbrand
2020-04-22 9:57 ` Baoquan He
2020-04-22 9:57 ` Baoquan He
2020-04-22 9:57 ` Baoquan He
2020-04-22 9:57 ` Baoquan He
2020-04-22 10:05 ` David Hildenbrand
2020-04-22 10:05 ` David Hildenbrand
2020-04-22 10:05 ` David Hildenbrand
2020-04-22 10:05 ` David Hildenbrand
2020-04-22 10:36 ` Baoquan He
2020-04-22 10:36 ` Baoquan He
2020-04-22 10:36 ` Baoquan He
2020-04-22 10:36 ` Baoquan He
2020-04-14 9:16 ` Dave Young
2020-04-14 9:16 ` Dave Young
2020-04-14 9:16 ` Dave Young
2020-04-14 9:38 ` Dave Young
2020-04-14 9:38 ` Dave Young
2020-04-14 9:38 ` Dave Young
2020-04-14 7:05 ` David Hildenbrand
2020-04-14 7:05 ` David Hildenbrand
2020-04-14 7:05 ` David Hildenbrand
2020-04-14 16:55 ` James Morse
2020-04-14 16:55 ` James Morse
2020-04-14 16:55 ` James Morse
2020-04-14 17:41 ` David Hildenbrand
2020-04-14 17:41 ` David Hildenbrand
2020-04-14 17:41 ` David Hildenbrand
2020-04-15 20:33 ` Eric W. Biederman
2020-04-15 20:33 ` Eric W. Biederman
2020-04-15 20:33 ` Eric W. Biederman
2020-04-22 12:28 ` James Morse
2020-04-22 12:28 ` James Morse
2020-04-22 12:28 ` James Morse
2020-04-22 15:25 ` Eric W. Biederman
2020-04-22 15:25 ` Eric W. Biederman
2020-04-22 15:25 ` Eric W. Biederman
2020-04-22 16:40 ` David Hildenbrand
2020-04-22 16:40 ` David Hildenbrand
2020-04-22 16:40 ` David Hildenbrand
2020-04-23 16:29 ` Eric W. Biederman
2020-04-23 16:29 ` Eric W. Biederman
2020-04-23 16:29 ` Eric W. Biederman
2020-04-24 7:39 ` David Hildenbrand
2020-04-24 7:39 ` David Hildenbrand
2020-04-24 7:39 ` David Hildenbrand
2020-04-24 7:41 ` David Hildenbrand
2020-04-24 7:41 ` David Hildenbrand
2020-04-24 7:41 ` David Hildenbrand
2020-05-01 16:55 ` James Morse
2020-05-01 16:55 ` James Morse
2020-05-01 16:55 ` James Morse
2020-03-26 18:07 ` [PATCH 2/3] mm/memory_hotplug: Allow arch override of non boot memory resource names James Morse
2020-03-26 18:07 ` James Morse
2020-03-27 9:59 ` David Hildenbrand
2020-03-27 9:59 ` David Hildenbrand
2020-03-27 15:39 ` James Morse
2020-03-27 15:39 ` James Morse
2020-03-30 13:23 ` David Hildenbrand
2020-03-30 13:23 ` David Hildenbrand
2020-03-30 17:17 ` James Morse
2020-03-30 17:17 ` James Morse
2020-04-02 5:49 ` Dave Young
2020-04-02 5:49 ` Dave Young
2020-04-02 5:49 ` Dave Young
2020-04-02 6:12 ` piliu
2020-04-02 6:12 ` piliu
2020-04-02 6:12 ` piliu
2020-04-14 17:21 ` James Morse
2020-04-14 17:21 ` James Morse
2020-04-14 17:21 ` James Morse
2020-04-15 20:36 ` Eric W. Biederman
2020-04-15 20:36 ` Eric W. Biederman
2020-04-15 20:36 ` Eric W. Biederman
2020-04-22 12:14 ` James Morse
2020-04-22 12:14 ` James Morse
2020-04-22 12:14 ` James Morse
2020-05-09 0:45 ` Andrew Morton
2020-05-09 0:45 ` Andrew Morton
2020-05-09 0:45 ` Andrew Morton
2020-05-11 8:35 ` David Hildenbrand
2020-05-11 8:35 ` David Hildenbrand
2020-05-11 8:35 ` David Hildenbrand
2020-03-26 18:07 ` [PATCH 3/3] arm64: memory: Give hotplug memory a different resource name James Morse
2020-03-26 18:07 ` James Morse
2020-03-30 19:01 ` David Hildenbrand
2020-03-30 19:01 ` David Hildenbrand
2020-04-15 20:37 ` Eric W. Biederman
2020-04-15 20:37 ` Eric W. Biederman
2020-04-15 20:37 ` Eric W. Biederman
2020-04-22 12:14 ` James Morse
2020-04-22 12:14 ` James Morse
2020-04-22 12:14 ` James Morse
2020-03-27 2:11 ` [PATCH 0/3] kexec/memory_hotplug: Prevent removal and accidental use Baoquan He
2020-03-27 2:11 ` Baoquan He
2020-03-27 15:40 ` James Morse
2020-03-27 15:40 ` James Morse
2020-03-27 9:27 ` David Hildenbrand
2020-03-27 9:27 ` David Hildenbrand
2020-03-27 15:42 ` James Morse
2020-03-27 15:42 ` James Morse
2020-03-30 13:18 ` David Hildenbrand
2020-03-30 13:18 ` David Hildenbrand
2020-03-30 13:55 ` Baoquan He
2020-03-30 13:55 ` Baoquan He
2020-03-30 17:17 ` James Morse
2020-03-30 17:17 ` James Morse
2020-03-31 3:46 ` Dave Young
2020-03-31 3:46 ` Dave Young
2020-04-14 17:31 ` James Morse
2020-04-14 17:31 ` James Morse
2020-04-14 17:31 ` James Morse
2020-03-31 3:38 ` Dave Young
2020-03-31 3:38 ` Dave Young
2020-04-15 20:29 ` Eric W. Biederman
2020-04-15 20:29 ` Eric W. Biederman
2020-04-15 20:29 ` Eric W. Biederman
2020-04-22 12:14 ` James Morse
2020-04-22 12:14 ` James Morse
2020-04-22 12:14 ` James Morse
2020-04-22 13:04 ` Eric W. Biederman
2020-04-22 13:04 ` Eric W. Biederman
2020-04-22 13:04 ` Eric W. Biederman
2020-04-22 15:40 ` James Morse
2020-04-22 15:40 ` James Morse
2020-04-22 15:40 ` James Morse
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