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Wed, 21 Feb 2024 07:40:42 -0800 (PST) MIME-Version: 1.0 References: <20240214170720.v1.1.Ic3de2566a7fd3de8501b2f18afa9f94eadb2df0a@changeid> <87jzn0ofdb.wl-tiwai@suse.de> <235ab5aa-90a4-4dd7-b2c6-70469605bcfb@suse.cz> In-Reply-To: From: Sven van Ashbrook Date: Wed, 21 Feb 2024 10:40:31 -0500 Message-ID: Subject: Re: Stall at page allocations with __GFP_RETRY_MAYFAIL (Re: [PATCH v1] ALSA: memalloc: Fix indefinite hang in non-iommu case) To: Vlastimil Babka Cc: Takashi Iwai , Karthikeyan Ramasubramanian , LKML , Brian Geffon , stable@vger.kernel.org, Curtis Malainey , Jaroslav Kysela , Takashi Iwai , linux-sound@vger.kernel.org, linux-mm@kvack.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: D5EB5140014 X-Stat-Signature: qjjah9aw7fxdufdxc8jeptors1okddiz X-HE-Tag: 1708530042-466352 X-HE-Meta: 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 a1oY6eFS vU1CKhZa+c+UcoaX7G5GBMLCl+ghiry3mbHqX/95mFOVzHUo= X-Bogosity: Ham, tests=bogofilter, spamicity=0.033913, 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 Wed, Feb 21, 2024 at 4:58=E2=80=AFAM Vlastimil Babka wr= ote: > > Thanks a lot, seems this can indeed happen even in 6.8-rc5. We're > mishandling the case where compaction is skipped due to lack of __GFP_IO, > which is indeed cleared in suspend/resume. I'll create a fix. I'm really grateful for the engagement here !! > Please don't > hesitate to report such issues the next time, even if not fully debugged = :) > Will do :)