linux-kernel - commit e57bf9cda9cd ("timerfd: convert to ->read_iter()") breaks booting on debian stable (bookworm, 12.5)

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Message-ID: <fa36ba8c12e0243c717ba33d3fec29cf9f107556.camel@web.de>
Date: Thu, 11 Apr 2024 22:31:25 +0200
From: Bert Karwatzki <spasswolf@....de>
To: linux-kernel@...r.kernel.org
Cc: Jens Axboe <axboe@...nel.dk>, linux-fsdevel@...r.kernel.org, 
	spasswolf@....de
Subject: commit e57bf9cda9cd ("timerfd: convert to ->read_iter()") breaks
 booting on debian stable (bookworm, 12.5)

Since linux-next-20240411 the booting process on debian stable hangs during the
init messages. I bisected this to commit e57bf9cda9cd, and reverting this commit
in linux-next-20240411 fixes the issue. I'm running debian stable (amd64) on an
MSI Alpha 15 laptop with 64G ram and the following hardware:

$ lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne Root
Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host
Bridge
00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe GPP Bridge
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host
Bridge
00:02.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP
Bridge
00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP
Bridge
00:02.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP
Bridge
00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP
Bridge
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host
Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCIe GPP
Bridge to Bus
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 51)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric;
Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric;
Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric;
Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric;
Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric;
Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric;
Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric;
Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric;
Function 7
01:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 XL Upstream
Port of PCI Express Switch (rev c3)
02:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 XL Downstream
Port of PCI Express Switch
03:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Navi 23
[Radeon RX 6600/6600 XT/6600M] (rev c3)
03:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Navi 21/23 HDMI/DP
Audio Controller
04:00.0 Network controller: MEDIATEK Corp. MT7921K (RZ608) Wi-Fi 6E 80MHz
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411
PCI Express Gigabit Ethernet Controller (rev 15)
06:00.0 Non-Volatile memory controller: Kingston Technology Company, Inc.
KC3000/FURY Renegade NVMe SSD E18 (rev 01)
07:00.0 Non-Volatile memory controller: Micron/Crucial Technology P1 NVMe PCIe
SSD (rev 03)
08:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Cezanne [Radeon Vega Series / Radeon Vega Mobile Series] (rev c5)
08:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Renoir Radeon High
Definition Audio Controller
08:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h
(Models 10h-1fh) Platform Security Processor
08:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne USB
3.1
08:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne USB
3.1
08:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD]
ACP/ACP3X/ACP6x Audio Coprocessor (rev 01)
08:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h/19h HD Audio
Controller
08:00.7 Signal processing controller: Advanced Micro Devices, Inc. [AMD] Sensor
Fusion Hub

Bert Karwatzki