From: Alexey Makhalov <amakhalov@vmware.com>
To: Michal Hocko <mhocko@suse.com>
Cc: Dennis Zhou <dennis@kernel.org>,
Eric Dumazet <eric.dumazet@gmail.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
David Hildenbrand <david@redhat.com>,
Oscar Salvador <osalvador@suse.de>, Tejun Heo <tj@kernel.org>,
Christoph Lameter <cl@linux.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"stable@vger.kernel.org" <stable@vger.kernel.org>
Subject: Re: [PATCH v3] mm: fix panic in __alloc_pages
Date: Thu, 9 Dec 2021 09:28:55 +0000 [thread overview]
Message-ID: <2291C572-3B22-4BE5-8C7A-0D6A4609547B@vmware.com> (raw)
In-Reply-To: <YbHCT1r7NXyIvpsS@dhcp22.suse.cz>
> On Dec 9, 2021, at 12:46 AM, Michal Hocko <mhocko@suse.com> wrote:
>
> On Thu 09-12-21 02:16:17, Alexey Makhalov wrote:
>> This patch calls alloc_percpu() from setup_arch() while percpu
>> allocator is not yet initialized (before setup_per_cpu_areas()).
>
> Yeah, I haven't realized the pcp is not available. I was not really sure
> about that. Could you try with the alloc_percpu dropped?
>
> Thanks for testing!
> --
> Michal Hocko
> SUSE Labs
It boots now. dmesg has these new messages:
[ 0.081777] Node 4 uninitialized by the platform. Please report with boot dmesg.
[ 0.081790] Initmem setup node 4 [mem 0x0000000000000000-0x0000000000000000]
...
[ 0.086441] Node 127 uninitialized by the platform. Please report with boot dmesg.
[ 0.086454] Initmem setup node 127 [mem 0x0000000000000000-0x0000000000000000]
vCPU/node hot add works.
Onlining works as well, but with warning. I do not think it is related to the patch:
[ 36.838838] CPU4 has been hot-added
[ 36.838987] acpi_processor_hotadd_init:205 cpu 4, node 4, online 0, ndata 00000000e9c7f79b
[ 48.480498] Built 4 zonelists, mobility grouping on. Total pages: 961440
[ 48.480508] Policy zone: Normal
[ 48.508318] smpboot: Booting Node 4 Processor 4 APIC 0x8
[ 48.509255] Disabled fast string operations
[ 48.509807] smpboot: CPU 4 Converting physical 8 to logical package 4
[ 48.509825] smpboot: CPU 4 Converting physical 0 to logical die 4
[ 48.510040] WARNING: workqueue cpumask: online intersect > possible intersect
[ 48.510324] vmware: vmware-stealtime: cpu 4, pa 3e667000
[ 48.511311] Will online and init hotplugged CPU: 4
Hot remove does not quite work. It might be issue in ACPI/Firmware code or Hypervisor. Debugging…
Do you want me to perform any specific tests?
Regards,
—Alexey
next prev parent reply other threads:[~2021-12-09 9:29 UTC|newest]
Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-01 20:13 [PATCH] mm: fix panic in __alloc_pages Alexey Makhalov
2021-11-01 20:38 ` Matthew Wilcox
2021-11-02 7:47 ` Michal Hocko
2021-11-02 8:12 ` David Hildenbrand
2021-11-02 8:48 ` Alexey Makhalov
2021-11-02 9:04 ` Michal Hocko
2021-11-02 9:24 ` David Hildenbrand
2021-11-02 10:34 ` Alexey Makhalov
2021-11-02 11:00 ` David Hildenbrand
2021-11-02 11:44 ` Michal Hocko
2021-11-02 12:06 ` David Hildenbrand
2021-11-02 12:27 ` Michal Hocko
2021-11-02 12:39 ` David Hildenbrand
2021-11-02 13:25 ` Michal Hocko
2021-11-02 13:41 ` David Hildenbrand
2021-11-02 14:12 ` Michal Hocko
2021-11-02 14:44 ` David Hildenbrand
2021-11-02 13:52 ` Oscar Salvador
2021-11-02 14:35 ` Michal Hocko
2021-11-08 6:12 ` Alexey Makhalov
2021-11-08 6:36 ` [PATCH v2] " Alexey Makhalov
2021-11-08 8:32 ` David Hildenbrand
2021-11-08 20:23 ` [PATCH v3] " Alexey Makhalov
2021-11-09 2:08 ` Eric Dumazet
2021-11-09 7:03 ` David Hildenbrand
2021-11-09 16:55 ` Eric Dumazet
2021-11-09 17:15 ` Michal Hocko
2021-11-09 19:06 ` Dennis Zhou
2021-11-09 19:54 ` Michal Hocko
2021-11-16 1:31 ` Alexey Makhalov
2021-11-16 9:17 ` Michal Hocko
2021-11-16 20:22 ` Alexey Makhalov
2021-11-18 8:35 ` Michal Hocko
2021-12-07 10:54 ` Michal Hocko
2021-12-07 11:08 ` David Hildenbrand
2021-12-07 12:13 ` Michal Hocko
2021-12-07 12:28 ` David Hildenbrand
2021-12-07 13:23 ` Michal Hocko
2021-12-07 15:09 ` David Hildenbrand
2021-12-07 15:29 ` Michal Hocko
2021-12-07 15:34 ` David Hildenbrand
2021-12-07 15:56 ` Michal Hocko
2021-12-07 16:09 ` David Hildenbrand
2021-12-07 16:27 ` Michal Hocko
2021-12-07 16:36 ` Michal Hocko
2021-12-07 16:40 ` David Hildenbrand
2021-12-08 8:28 ` Michal Hocko
2021-12-07 17:02 ` Alexey Makhalov
2021-12-07 17:13 ` David Hildenbrand
2021-12-07 17:17 ` Alexey Makhalov
2021-12-07 18:03 ` David Hildenbrand
2021-12-08 8:12 ` Michal Hocko
2021-12-08 8:24 ` David Hildenbrand
2021-12-08 8:34 ` Michal Hocko
2021-12-08 8:38 ` David Hildenbrand
2021-12-08 8:04 ` Michal Hocko
2021-12-08 8:19 ` Alexey Makhalov
2021-12-08 8:30 ` Michal Hocko
2021-12-08 8:54 ` Michal Hocko
2021-12-08 8:57 ` Alexey Makhalov
2021-12-08 9:55 ` Michal Hocko
2021-12-09 2:16 ` Alexey Makhalov
2021-12-09 8:46 ` Michal Hocko
2021-12-09 9:28 ` Alexey Makhalov [this message]
2021-12-09 9:56 ` Michal Hocko
2021-12-09 10:23 ` Alexey Makhalov
2021-12-09 13:29 ` Michal Hocko
2021-12-09 19:01 ` Alexey Makhalov
2021-12-10 9:11 ` Michal Hocko
2021-12-17 12:53 ` Michal Hocko
2021-12-21 5:46 ` Alexey Makhalov
2021-12-21 9:46 ` Michal Hocko
2021-12-21 20:23 ` Alexey Makhalov
2021-12-22 11:41 ` Michal Hocko
2021-12-09 10:48 ` Michal Hocko
2021-12-13 15:06 ` Michal Hocko
2021-12-13 15:07 ` David Hildenbrand
2021-12-14 8:38 ` Michal Hocko
2021-11-08 10:37 ` [PATCH v2] " Michal Hocko
2021-11-02 9:40 ` [PATCH] " Alexey Makhalov
2021-11-02 9:40 ` Michal Hocko
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