From: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
To: Vlastimil Babka <vbabka@suse.cz>
Cc: John Hubbard <jhubbard@nvidia.com>,
Jason Gunthorpe <jgg@ziepe.ca>,
David Hildenbrand <david@redhat.com>,
Michal Hocko <mhocko@suse.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Andrew Morton <akpm@linux-foundation.org>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Peter Xu <peterx@redhat.com>
Subject: Re: [PATCH v1] mm/gup: remove (VM_)BUG_ONs
Date: Thu, 24 Jul 2025 11:56:09 +0100 [thread overview]
Message-ID: <55fdc47f-5a14-43d4-814b-7defd1101050@lucifer.local> (raw)
In-Reply-To: <c5be8d13-59ea-43e9-9b89-69dbfafd4a9c@suse.cz>
On Thu, Jul 24, 2025 at 12:54:26PM +0200, Vlastimil Babka wrote:
> On 6/9/25 11:57, Vlastimil Babka wrote:
> > On 6/7/25 8:00 PM, John Hubbard wrote:
> >> On 6/7/25 6:53 AM, Lorenzo Stoakes wrote:
> >> The worst part is that if you go to reproduce a problem, you don't
> >> see the next warning in the logs!! This is devastating, especially if
> >> the site makes it hard to ask for a system reboot. (If you have
> >> ~20,000 nodes in the cluster, a reboot is not a small affair.)
> >
> > Assuming you know how to reproduce the problem... I wonder if it would
> > help if there was a way (sysctl?) to re-arm all the _ONCE warnings. It
> > shouldn't be that hard hopefully?
>
> Oh hey it already exists, since 2017
>
> echo 1 > /sys/kernel/debug/clear_warn_once
Ohhh! Nice!
next prev parent reply other threads:[~2025-07-24 10:56 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-04 14:05 [PATCH v1] mm/gup: remove (VM_)BUG_ONs David Hildenbrand
2025-06-04 14:22 ` Vlastimil Babka
2025-06-04 14:26 ` Suren Baghdasaryan
2025-06-04 14:48 ` Lorenzo Stoakes
2025-06-04 14:58 ` David Hildenbrand
2025-06-04 15:44 ` Lorenzo Stoakes
2025-06-04 15:42 ` Linus Torvalds
2025-06-04 16:05 ` Lorenzo Stoakes
2025-06-04 15:14 ` Jason Gunthorpe
2025-06-04 16:01 ` David Hildenbrand
2025-06-04 17:25 ` SeongJae Park
2025-06-04 19:12 ` Liam R. Howlett
2025-06-04 19:16 ` David Hildenbrand
2025-06-05 1:07 ` John Hubbard
2025-06-05 5:37 ` Vlastimil Babka
2025-06-05 6:08 ` David Hildenbrand
2025-06-05 8:48 ` Vlastimil Babka
2025-06-05 12:29 ` David Hildenbrand
2025-06-05 7:10 ` Michal Hocko
2025-06-06 8:10 ` David Hildenbrand
2025-06-06 8:31 ` Michal Hocko
2025-06-06 9:01 ` David Hildenbrand
2025-06-06 10:13 ` Michal Hocko
2025-06-06 10:19 ` Lorenzo Stoakes
2025-06-06 10:28 ` David Hildenbrand
2025-06-06 11:04 ` Lorenzo Stoakes
2025-06-06 11:44 ` David Hildenbrand
2025-06-06 11:56 ` Michal Hocko
2025-06-06 12:12 ` Lorenzo Stoakes
2025-06-06 12:17 ` David Hildenbrand
2025-06-06 17:57 ` John Hubbard
2025-06-06 18:06 ` Lorenzo Stoakes
2025-06-06 18:15 ` David Hildenbrand
2025-06-06 18:21 ` John Hubbard
2025-06-06 18:23 ` David Hildenbrand
2025-06-06 18:31 ` John Hubbard
2025-06-06 18:36 ` David Hildenbrand
2025-06-06 18:39 ` John Hubbard
2025-06-06 18:34 ` Lorenzo Stoakes
2025-06-06 18:42 ` Jason Gunthorpe
2025-06-06 18:46 ` Lorenzo Stoakes
2025-06-06 19:03 ` Lorenzo Stoakes
2025-06-07 13:42 ` Jason Gunthorpe
2025-06-07 13:53 ` Lorenzo Stoakes
2025-06-07 18:00 ` John Hubbard
2025-06-09 9:57 ` Vlastimil Babka
2025-07-24 10:54 ` Vlastimil Babka
2025-07-24 10:56 ` Lorenzo Stoakes [this message]
2025-07-24 17:27 ` John Hubbard
2025-06-11 9:32 ` David Hildenbrand
2025-06-11 12:03 ` Jason Gunthorpe
2025-06-11 12:06 ` Lorenzo Stoakes
2025-06-06 10:28 ` Michal Hocko
2025-06-06 10:27 ` David Hildenbrand
2025-06-06 8:12 ` David Hildenbrand
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