Bug#1093953: linux-image-6.12.9+bpo-amd64: Kernel 6.12.9, random freezes on Thinkpad T520
Package: src:linux
Version: 6.12.9-1~bpo12+1
Followup-For: Bug #1093953
X-Debbugs-Cc: mortenkjeldgaard@gmail.com
Dear Maintainer,
*** Reporter, please consider answering these questions, where appropriate ***
I upgraded to kernel 6.12.9 from on 2025-01-23 when it became available in backport, and rebooted some hours later. After rebooting and running this kernel, my machine became unstable, and I experienced multiple freezes.
My machine has been rock stable for months running 6.11.* or most recent backported kernel or earlier kernels, and I've not booted it for weeks, just closed the lid.
A few hours after I upgraded to 6.12.9 it started freezing. I could force a reboot, and it would again freeze after 5-10-30 minutes.
Now i am back on 6.11 and it's stable again. I did browse the journal for clues, couldn't find any clues.
*** End of the template - remove these template lines ***
-- Package-specific info:
** Kernel log: boot messages should be attached
** Model information
sys_vendor: LENOVO
product_name: 4246A58
product_version: ThinkPad T520
chassis_vendor: LENOVO
chassis_version: Not Available
bios_vendor: LENOVO
bios_version: 8AET54WW (1.34 )
board_vendor: LENOVO
board_name: 4246A58
board_version: Not Available
** Network interface configuration:
*** /etc/network/interfaces:
source /etc/network/interfaces.d/*
** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 2nd Generation Core Processor Family DRAM Controller [8086:0104] (rev 09)
Subsystem: Lenovo ThinkPad T520 [17aa:21cf]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 0
IOMMU group: 1
Capabilities: <access denied>
00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
Subsystem: Lenovo ThinkPad T520 [17aa:21cf]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 28
IOMMU group: 0
Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at 4000 [size=64]
Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915
00:16.0 Communication controller [0780]: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 [8086:1c3a] (rev 04)
Subsystem: Lenovo ThinkPad T520 [17aa:21cf]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 29
IOMMU group: 2
Region 0: Memory at f1525000 (64-bit, non-prefetchable) [size=16]
Capabilities: <access denied>
Kernel driver in use: mei_me
Kernel modules: mei_me
00:16.3 Serial controller [0700]: Intel Corporation 6 Series/C200 Series Chipset Family KT Controller [8086:1c3d] (rev 04) (prog-if 02 [16550])
Subsystem: Lenovo 6 Series/C200 Series Chipset Family KT Controller [17aa:21cf]
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin B routed to IRQ 19
IOMMU group: 2
Region 0: I/O ports at 40b0 [size=8]
Region 1: Memory at f152c000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: serial
00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit Network Connection (Lewisville) [8086:1502] (rev 04)
Subsystem: Lenovo ThinkPad T520 [17aa:21ce]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 26
IOMMU group: 3
Region 0: Memory at f1500000 (32-bit, non-prefetchable) [size=128K]
Region 1: Memory at f152b000 (32-bit, non-prefetchable) [size=4K]
Region 2: I/O ports at 4080 [size=32]
Capabilities: <access denied>
Kernel driver in use: e1000e
Kernel modules: e1000e
00:1a.0 USB controller [0c03]: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 [8086:1c2d] (rev 04) (prog-if 20 [EHCI])
Subsystem: Lenovo ThinkPad T520 [17aa:21cf]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
IOMMU group: 4
Region 0: Memory at f152a000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
Kernel modules: ehci_pci
00:1b.0 Audio device [0403]: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller [8086:1c20] (rev 04)
Subsystem: Lenovo ThinkPad T520 [17aa:21cf]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 31
IOMMU group: 5
Region 0: Memory at f1520000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:1c.0 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 [8086:1c10] (rev b4) (prog-if 00 [Normal decode])
Subsystem: Lenovo ThinkPad T520 [17aa:21cf]
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 16
IOMMU group: 6
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: [disabled] [16-bit]
Memory behind bridge: [disabled] [32-bit]
Prefetchable memory behind bridge: [disabled] [64-bit]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
00:1c.1 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 [8086:1c12] (rev b4) (prog-if 00 [Normal decode])
Subsystem: Lenovo ThinkPad T520 [17aa:21cf]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin B routed to IRQ 17
IOMMU group: 7
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
I/O behind bridge: [disabled] [16-bit]
Memory behind bridge: f1400000-f14fffff [size=1M] [32-bit]
Prefetchable memory behind bridge: [disabled] [64-bit]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
00:1c.4 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 [8086:1c18] (rev b4) (prog-if 00 [Normal decode])
Subsystem: Lenovo ThinkPad T520 [17aa:21cf]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
IOMMU group: 8
Bus: primary=00, secondary=0d, subordinate=0d, sec-latency=0
I/O behind bridge: 3000-3fff [size=4K] [16-bit]
Memory behind bridge: f0c00000-f13fffff [size=8M] [32-bit]
Prefetchable memory behind bridge: f0400000-f0bfffff [size=8M] [32-bit]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
00:1d.0 USB controller [0c03]: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 [8086:1c26] (rev 04) (prog-if 20 [EHCI])
Subsystem: Lenovo ThinkPad T520 [17aa:21cf]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 23
IOMMU group: 9
Region 0: Memory at f1529000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
Kernel modules: ehci_pci
00:1f.0 ISA bridge [0601]: Intel Corporation QM67 Express Chipset LPC Controller [8086:1c4f] (rev 04)
Subsystem: Lenovo ThinkPad T520 [17aa:21cf]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
IOMMU group: 10
Capabilities: <access denied>
Kernel driver in use: lpc_ich
Kernel modules: lpc_ich
00:1f.2 SATA controller [0106]: Intel Corporation 6 Series/C200 Series Chipset Family 6 port Mobile SATA AHCI Controller [8086:1c03] (rev 04) (prog-if 01 [AHCI 1.0])
Subsystem: Lenovo ThinkPad T520 [17aa:21cf]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 27
IOMMU group: 10
Region 0: I/O ports at 40a8 [size=8]
Region 1: I/O ports at 40bc [size=4]
Region 2: I/O ports at 40a0 [size=8]
Region 3: I/O ports at 40b8 [size=4]
Region 4: I/O ports at 4060 [size=32]
Region 5: Memory at f1528000 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: ahci
Kernel modules: ahci
00:1f.3 SMBus [0c05]: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller [8086:1c22] (rev 04)
Subsystem: Lenovo ThinkPad T520 [17aa:21cf]
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin C routed to IRQ 18
IOMMU group: 10
Region 0: Memory at f1524000 (64-bit, non-prefetchable) [size=256]
Region 4: I/O ports at efa0 [size=32]
Kernel driver in use: i801_smbus
Kernel modules: i2c_i801
03:00.0 Network controller [0280]: Intel Corporation Centrino Ultimate-N 6300 [8086:4238] (rev 3e)
Subsystem: Intel Corporation Centrino Ultimate-N 6300 3x3 AGN [8086:1111]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 30
IOMMU group: 11
Region 0: Memory at f1400000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
0d:00.0 System peripheral [0880]: Ricoh Co Ltd PCIe SDXC/MMC Host Controller [1180:e823] (rev 05) (prog-if 01)
Subsystem: Lenovo ThinkPad T520 [17aa:21cf]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
IOMMU group: 12
Region 0: Memory at f0c00000 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: sdhci-pci
Kernel modules: sdhci_pci
** USB devices:
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 005: ID 04f2:b217 Chicony Electronics Co., Ltd Lenovo Integrated Camera (0.3MP)
Bus 001 Device 004: ID 0a5c:217f Broadcom Corp. BCM2045B (BDC-2.1)
Bus 001 Device 003: ID 046d:c53f Logitech, Inc. USB Receiver
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
-- System Information:
Debian Release: 12.1
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 6.11.10+bpo-amd64 (SMP w/4 CPU threads; PREEMPT)
Kernel taint flags: TAINT_FIRMWARE_WORKAROUND
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_DK.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages linux-image-6.12.9+bpo-amd64 depends on:
ii initramfs-tools [linux-initramfs-tool] 0.142+deb12u1
ii kmod 30+20221128-1
ii linux-base 4.9
Versions of packages linux-image-6.12.9+bpo-amd64 recommends:
ii apparmor 3.0.8-3
Versions of packages linux-image-6.12.9+bpo-amd64 suggests:
pn debian-kernel-handbook <none>
ii firmware-linux-free 20200122-1
ii grub-efi-amd64 2.12-1~bpo12+1
pn linux-doc-6.12 <none>
Versions of packages linux-image-6.12.9+bpo-amd64 is related to:
ii firmware-amd-graphics 20240709-2~bpo12+1
ii firmware-atheros 20240709-2~bpo12+1
ii firmware-bnx2 20240709-2~bpo12+1
ii firmware-bnx2x 20240709-2~bpo12+1
ii firmware-brcm80211 20240709-2~bpo12+1
pn firmware-cavium <none>
pn firmware-cirrus <none>
ii firmware-intel-graphics 20240709-2~bpo12+1
ii firmware-intel-misc 20240709-2~bpo12+1
pn firmware-intel-sound <none>
ii firmware-ipw2x00 20240709-2~bpo12+1
ii firmware-ivtv 20240709-2~bpo12+1
ii firmware-iwlwifi 20240709-2~bpo12+1
ii firmware-libertas 20240709-2~bpo12+1
ii firmware-marvell-prestera 20240709-2~bpo12+1
ii firmware-mediatek 20240709-2~bpo12+1
ii firmware-misc-nonfree 20240709-2~bpo12+1
pn firmware-myricom <none>
pn firmware-netronome <none>
pn firmware-netxen <none>
ii firmware-nvidia-graphics 20240709-2~bpo12+1
pn firmware-qcom-soc <none>
ii firmware-qlogic 20240709-2~bpo12+1
ii firmware-realtek 20240709-2~bpo12+1
pn firmware-samsung <none>
pn firmware-siano <none>
pn firmware-ti-connectivity <none>
pn xen-hypervisor <none>
-- no debconf information
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