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From: Oscar Salvador <osalvador@suse.de>
To: Oscar Salvador <osalvador.vilardaga@gmail.com>
Cc: Gavin Guo <gavinguo@igalia.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	David Hildenbrand <david@redhat.com>,
	Muchun Song <muchun.song@linux.dev>, Peter Xu <peterx@redhat.com>,
	Linux Memory Management List <linux-mm@kvack.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 1/5] mm,hugetlb: Change mechanism to detect a COW on private mapping
Date: Sun, 29 Jun 2025 22:12:06 +0200	[thread overview]
Message-ID: <aGGeFrPwAxsu-f3F@localhost.localdomain> (raw)
In-Reply-To: <aGF8v50STTr3fV57@localhost.localdomain>

On Sun, Jun 29, 2025 at 07:49:51PM +0200, Oscar Salvador wrote:
> Are there any considerations to be taken before kicking in the test?
> I don't seem to be able to reproduce the issue.

Nevermind, I just wrote my own reproducer.
I see two ways of fixing this, the simpler being a trylock instead of a
lock, like the original code did.
I'll sleep on it and fix it tomorrow.
 

-- 
Oscar Salvador
SUSE Labs

  reply	other threads:[~2025-06-29 20:12 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-27 10:28 [PATCH v3 0/5] Misc rework on hugetlb faulting path Oscar Salvador
2025-06-27 10:29 ` [PATCH v3 1/5] mm,hugetlb: Change mechanism to detect a COW on private mapping Oscar Salvador
2025-06-28  9:22   ` Gavin Guo
     [not found]     ` <CAOXBz7gP9Zur3804zJhxFhSjprNc-gfi4vg7w2g07HA2S9EkcA@mail.gmail.com>
2025-06-29 17:49       ` Oscar Salvador
2025-06-29 20:12         ` Oscar Salvador [this message]
2025-06-30 13:26           ` Oscar Salvador
2025-06-27 10:29 ` [PATCH v3 2/5] mm,hugetlb: Sort out folio locking in the faulting path Oscar Salvador
2025-06-27 10:29 ` [PATCH v3 3/5] mm,hugetlb: Rename anon_rmap to new_anon_folio and make it boolean Oscar Salvador
2025-06-27 10:29 ` [PATCH v3 4/5] mm,hugetlb: Drop obsolete comment about non-present pte and second faults Oscar Salvador
2025-06-27 10:29 ` [PATCH v3 5/5] mm,hugetlb: Drop unlikelys from hugetlb_fault Oscar Salvador

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