From: Matthew Wilcox <willy@infradead.org>
To: David Rientjes <rientjes@google.com>
Cc: David Hildenbrand <david@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@kernel.org>, Alex Shi <alexs@kernel.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Alexander Duyck <alexanderduyck@fb.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [patch] mm, debug: allow suppressing panic on CONFIG_DEBUG_VM checks
Date: Tue, 23 May 2023 04:43:52 +0100 [thread overview]
Message-ID: <ZGw2eJxxQl4DrfWi@casper.infradead.org> (raw)
In-Reply-To: <53dd9df8-e88f-f466-89f9-3fa141a10267@google.com>
On Mon, May 22, 2023 at 11:39:27AM -0700, David Rientjes wrote:
> I think VM_BUG_ON*() and friends are used to crash the kernel for
> debugging so that we get a crash dump and because some variants don't
> exist for VM_WARN_ON(). There's no VM_WARN_ON_PAGE(), for example, unless
> implicitly converted with this patch.
It could be added, but there's already a VM_WARN_ON_FOLIO() and
VM_WARN_ON_ONCE_PAGE(), so hopefully we just keep converting code
to folios until nobody notices that we might need such a thing.
next prev parent reply other threads:[~2023-05-23 3:44 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-21 23:07 David Rientjes
2023-05-22 9:42 ` David Hildenbrand
2023-05-22 18:39 ` David Rientjes
2023-05-22 18:48 ` Linus Torvalds
2023-05-23 0:51 ` David Rientjes
2023-05-23 1:47 ` Linus Torvalds
2023-05-24 0:53 ` David Rientjes
2023-05-24 8:42 ` David Hildenbrand
2023-05-24 11:44 ` Justin Forbes
2023-05-23 7:46 ` Michal Hocko
2023-05-23 3:43 ` Matthew Wilcox [this message]
2023-05-24 0:54 ` David Rientjes
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