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From: Sven van Ashbrook <svenva@chromium.org>
To: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	bgeffon@google.com,  cujomalainey@chromium.org,
	kramasub@chromium.org,  linux-kernel@vger.kernel.org,
	linux-mm@kvack.org, linux-sound@vger.kernel.org,  perex@perex.cz,
	stable@vger.kernel.org, tiwai@suse.com, tiwai@suse.de,
	 Michal Hocko <mhocko@kernel.org>,
	Mel Gorman <mgorman@techsingularity.net>
Subject: Re: [PATCH] mm, vmscan: prevent infinite loop for costly GFP_NOIO | __GFP_RETRY_MAYFAIL allocations
Date: Wed, 21 Feb 2024 10:52:52 -0500	[thread overview]
Message-ID: <CAG-rBihOr+aAZhO4D2VBwSx-EGg_gbgBYKN3fSBTPKCXdz9AqA@mail.gmail.com> (raw)
In-Reply-To: <20240221114357.13655-2-vbabka@suse.cz>

Thanks so much ! We will stress test this on our side.

We do this by exhausting memory and triggering many suspend/resume
cycles. This reliably reproduces the problem (before this patch).

Of course, as we all know, absence of evidence (no more stalls in stress tests)
does not equal evidence of absence (stalls are gone in all code paths).


  reply	other threads:[~2024-02-21 15:53 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20240214170720.v1.1.Ic3de2566a7fd3de8501b2f18afa9f94eadb2df0a@changeid>
2024-02-19 11:36 ` Stall at page allocations with __GFP_RETRY_MAYFAIL (Re: [PATCH v1] ALSA: memalloc: Fix indefinite hang in non-iommu case) Takashi Iwai
2024-02-19 11:40   ` Vlastimil Babka
2024-02-20 15:52     ` Sven van Ashbrook
2024-02-21  9:21       ` Takashi Iwai
2024-02-21 15:37         ` Sven van Ashbrook
2024-02-21  9:58       ` Vlastimil Babka
2024-02-21 15:40         ` Sven van Ashbrook
2024-02-21 11:43       ` [PATCH] mm, vmscan: prevent infinite loop for costly GFP_NOIO | __GFP_RETRY_MAYFAIL allocations Vlastimil Babka
2024-02-21 15:52         ` Sven van Ashbrook [this message]
2024-02-22 16:43           ` Karthikeyan Ramasubramanian
2024-02-26 16:09         ` Sven van Ashbrook
2024-02-26 16:45           ` Vlastimil Babka
2024-02-28 19:33         ` Karthikeyan Ramasubramanian

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