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Sun, 29 Jun 2025 20:12:08 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id 54syJhieYWgBRwAAD6G6ig (envelope-from ); Sun, 29 Jun 2025 20:12:08 +0000 Date: Sun, 29 Jun 2025 22:12:06 +0200 From: Oscar Salvador To: Oscar Salvador Cc: Gavin Guo , Andrew Morton , David Hildenbrand , Muchun Song , Peter Xu , Linux Memory Management List , LKML Subject: Re: [PATCH v3 1/5] mm,hugetlb: Change mechanism to detect a COW on private mapping Message-ID: References: <20250627102904.107202-1-osalvador@suse.de> <20250627102904.107202-2-osalvador@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Action: no action X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: C99F480005 X-Stat-Signature: 6jcnw43gnurwtexzzb6sxrzti7e8fk83 X-Rspam-User: X-HE-Tag: 1751227931-197223 X-HE-Meta: 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 0Y0tjPYB 3zIBYr6sR/UBpxvG+LCCCWSpvUNVCuzqc13qYRDZsLj2hbkI0aCIr79pELNlpSj3nwg4U5G46jrDDX90TDpdERheiuZckHsfMEoxbJyShmxXC/FZ5WH1hpVoYmDs1038XXYM1DIcTZlhEqwwn+AR/cVkQDyYaj2tbHKJ5IU4ICoUEXEy+ZwlOrWZ1pEmf+Tce6u4m+P0CpH6sb7Tm+gqRzhROE8KraXizLGboIjqiSWPCj+cEG30tuc4HPe57648eaSlKg7zmGkGeOQSIF1ohQuy6SstW9nkpn1I+J3HSyOYg5EIvitNYBfPBwcnuHn31K7gVYhiyw15UHzk= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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