Groups > linux.debian.kernel > #62616 > unrolled thread

Bug#915178: i915: unable to handle kernel NULL pointer dereference at 0000000000000008

Started by	Lisandro Damián Nicanor Pérez Meyer <lisandro@debian.org>
First post	2018-12-01 14:20 +0100
Last post	2018-12-10 19:10 +0100
Articles	4 — 4 participants

Back to article view | Back to linux.debian.kernel

  Bug#915178: i915: unable to handle kernel NULL pointer dereference at 0000000000000008 Lisandro Damián Nicanor Pérez Meyer <lisandro@debian.org> - 2018-12-01 14:20 +0100
    Bug#915178: i915: unable to handle kernel NULL pointer dereference at 0000000000000008 Bill Brelsford <wb@k2di.net> - 2018-12-02 03:00 +0100
      Bug#915178: i915: unable to handle kernel NULL pointer dereference at 0000000000000008 Ian Campbell <ijc@debian.org> - 2018-12-02 09:00 +0100
    Bug#915178: fixed-in-experimental 4.19.5-1~exp1 amd64 "dune97@yahoo.com" <dune97@yahoo.com> - 2018-12-10 19:10 +0100

#62616 — Bug#915178: i915: unable to handle kernel NULL pointer dereference at 0000000000000008

From	Lisandro Damián Nicanor Pérez Meyer <lisandro@debian.org>
Date	2018-12-01 14:20 +0100
Subject	Bug#915178: i915: unable to handle kernel NULL pointer dereference at 0000000000000008
Message-ID	<x0dlD-5GV-1@gated-at.bofh.it>

[Multipart message — attachments visible in raw view] — view raw

Package: src:linux
Version: 4.18.20-2
Severity: serious
Justification: Renders machine unusable

Hi! This is a regression with respect to linux-image-4.18.0-2-amd64, which I'm using now.

With linux-image-4.18.0-3-amd64 the i915 driver tries to dereference a NULL pointer, leaving
the video in the machine unusable (I can only access the machine trough network).

I'm attaching dmesg's putput in that case.

Thanks, Lisandro.

-- Package-specific info:
** Kernel log: boot messages should be attached

** Model information
sys_vendor: Dell Inc.
product_name: Latitude E5500                  
product_version: 
chassis_vendor: Dell Inc.
chassis_version: 
bios_vendor: Dell Inc.
bios_version: A08
board_vendor: Dell Inc.
board_name: 0X796D
board_version: 

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub [8086:2a40] (rev 07)
	Subsystem: Dell Mobile 4 Series Chipset Memory Controller Hub [1028:0263]
	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
	Capabilities: <access denied>

00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
	Subsystem: Dell Mobile 4 Series Chipset Integrated Graphics Controller [1028:0263]
	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 16
	Region 0: Memory at f6c00000 (64-bit, non-prefetchable) [size=4M]
	Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
	Region 4: I/O ports at efe8 [size=8]
	[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: i915
	Kernel modules: i915

00:02.1 Display controller [0380]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a43] (rev 07)
	Subsystem: Dell Mobile 4 Series Chipset Integrated Graphics Controller [1028:0263]
	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
	Region 0: Memory at f6b00000 (64-bit, non-prefetchable) [size=1M]
	Capabilities: <access denied>

00:1a.0 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 [8086:2937] (rev 02) (prog-if 00 [UHCI])
	Subsystem: Dell 82801I (ICH9 Family) USB UHCI Controller [1028:0263]
	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 20
	Region 4: I/O ports at 6f60 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd
	Kernel modules: uhci_hcd

00:1a.1 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 [8086:2938] (rev 02) (prog-if 00 [UHCI])
	Subsystem: Dell 82801I (ICH9 Family) USB UHCI Controller [1028:0263]
	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 21
	Region 4: I/O ports at 6f80 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd
	Kernel modules: uhci_hcd

00:1a.2 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 [8086:2939] (rev 02) (prog-if 00 [UHCI])
	Subsystem: Dell 82801I (ICH9 Family) USB UHCI Controller [1028:0263]
	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 C routed to IRQ 22
	Region 4: I/O ports at 6fa0 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd
	Kernel modules: uhci_hcd

00:1a.7 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 [8086:293c] (rev 02) (prog-if 20 [EHCI])
	Subsystem: Dell 82801I (ICH9 Family) USB2 EHCI Controller [1028:0263]
	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 C routed to IRQ 22
	Region 0: Memory at fed1c400 (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 82801I (ICH9 Family) HD Audio Controller [8086:293e] (rev 02)
	Subsystem: Dell 82801I (ICH9 Family) HD Audio Controller [1028:0263]
	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 25
	Region 0: Memory at f6afc000 (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 82801I (ICH9 Family) PCI Express Port 1 [8086:2940] (rev 02) (prog-if 00 [Normal decode])
	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
	Bus: primary=00, secondary=0b, subordinate=0b, sec-latency=0
	I/O behind bridge: 00002000-00002fff
	Memory behind bridge: f0000000-f01fffff
	Prefetchable memory behind bridge: 00000000f0200000-00000000f03fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1c.1 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 [8086:2942] (rev 02) (prog-if 00 [Normal decode])
	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
	Bus: primary=00, secondary=0c, subordinate=0c, sec-latency=0
	I/O behind bridge: 00003000-00003fff
	Memory behind bridge: f6900000-f69fffff
	Prefetchable memory behind bridge: 00000000f0400000-00000000f05fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1c.4 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 [8086:2948] (rev 02) (prog-if 00 [Normal decode])
	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
	Bus: primary=00, secondary=09, subordinate=09, sec-latency=0
	I/O behind bridge: 00004000-00004fff
	Memory behind bridge: f6800000-f68fffff
	Prefetchable memory behind bridge: 00000000f0600000-00000000f07fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1d.0 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 [8086:2934] (rev 02) (prog-if 00 [UHCI])
	Subsystem: Dell 82801I (ICH9 Family) USB UHCI Controller [1028:0263]
	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 20
	Region 4: I/O ports at 6f00 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd
	Kernel modules: uhci_hcd

00:1d.1 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 [8086:2935] (rev 02) (prog-if 00 [UHCI])
	Subsystem: Dell 82801I (ICH9 Family) USB UHCI Controller [1028:0263]
	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 21
	Region 4: I/O ports at 6f20 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd
	Kernel modules: uhci_hcd

00:1d.2 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 [8086:2936] (rev 02) (prog-if 00 [UHCI])
	Subsystem: Dell 82801I (ICH9 Family) USB UHCI Controller [1028:0263]
	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 C routed to IRQ 22
	Region 4: I/O ports at 6f40 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd
	Kernel modules: uhci_hcd

00:1d.7 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 [8086:293a] (rev 02) (prog-if 20 [EHCI])
	Subsystem: Dell 82801I (ICH9 Family) USB2 EHCI Controller [1028:0263]
	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 20
	Region 0: Memory at fed1c000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci
	Kernel modules: ehci_pci

00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev 92) (prog-if 01 [Subtractive decode])
	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
	Bus: primary=00, secondary=02, subordinate=03, sec-latency=32
	I/O behind bridge: 00005000-00005fff
	Memory behind bridge: f6700000-f67fffff
	Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>

00:1f.0 ISA bridge [0601]: Intel Corporation ICH9M LPC Interface Controller [8086:2919] (rev 02)
	Subsystem: Dell ICH9M LPC Interface Controller [1028:0263]
	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
	Capabilities: <access denied>
	Kernel driver in use: lpc_ich
	Kernel modules: lpc_ich

00:1f.2 SATA controller [0106]: Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode] [8086:2929] (rev 02) (prog-if 01 [AHCI 1.0])
	Subsystem: Dell 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode] [1028:0263]
	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 D routed to IRQ 24
	Region 0: I/O ports at 6e70 [size=8]
	Region 1: I/O ports at 6e78 [size=4]
	Region 2: I/O ports at 6e80 [size=8]
	Region 3: I/O ports at 6e88 [size=4]
	Region 4: I/O ports at 6ea0 [size=32]
	Region 5: Memory at fed1c800 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci
	Kernel modules: ahci

00:1f.3 SMBus [0c05]: Intel Corporation 82801I (ICH9 Family) SMBus Controller [8086:2930] (rev 02)
	Subsystem: Dell 82801I (ICH9 Family) SMBus Controller [1028:0263]
	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 B routed to IRQ 19
	Region 0: Memory at f6afbf00 (64-bit, non-prefetchable) [size=256]
	Region 4: I/O ports at 1100 [size=32]
	Kernel driver in use: i801_smbus
	Kernel modules: i2c_i801

02:01.0 CardBus bridge [0607]: Ricoh Co Ltd RL5c476 II [1180:0476] (rev ba)
	Subsystem: Dell RL5c476 II [1028:0263]
	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: 168
	Interrupt: pin A routed to IRQ 19
	Region 0: Memory at f4000000 (32-bit, non-prefetchable) [size=4K]
	Bus: primary=02, secondary=03, subordinate=03, sec-latency=176
	Memory window 0: f0800000-f0bfffff (prefetchable)
	Memory window 1: f0c00000-f0ffffff
	I/O window 0: 00005000-000050ff
	I/O window 1: 00005400-000054ff
	BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset- 16bInt+ PostWrite+
	16-bit legacy interface ports at 0001
	Capabilities: <access denied>
	Kernel driver in use: yenta_cardbus
	Kernel modules: yenta_socket

02:01.1 FireWire (IEEE 1394) [0c00]: Ricoh Co Ltd R5C832 IEEE 1394 Controller [1180:0832] (rev 04) (prog-if 10 [OHCI])
	Subsystem: Dell R5C832 IEEE 1394 Controller [1028:0263]
	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: 64 (500ns min, 1000ns max), Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 17
	Region 0: Memory at f67ff800 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: firewire_ohci
	Kernel modules: firewire_ohci

02:01.2 SD Host controller [0805]: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter [1180:0822] (rev 21) (prog-if 01)
	Subsystem: Dell R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter [1028:0263]
	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: 64, Cache Line Size: 64 bytes
	Interrupt: pin C routed to IRQ 18
	Region 0: Memory at f67ff600 (32-bit, non-prefetchable) [size=256]
	Capabilities: <access denied>
	Kernel driver in use: sdhci-pci
	Kernel modules: sdhci_pci

09:00.0 Ethernet controller [0200]: Broadcom Limited NetXtreme BCM5756ME Gigabit Ethernet PCI Express [14e4:1674]
	Subsystem: Dell NetXtreme BCM5756ME Gigabit Ethernet PCI Express [1028:0263]
	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 26
	Region 0: Memory at f68f0000 (64-bit, non-prefetchable) [size=64K]
	Expansion ROM at <ignored> [disabled]
	Capabilities: <access denied>
	Kernel driver in use: tg3
	Kernel modules: tg3

0c:00.0 Network controller [0280]: Broadcom Limited BCM4322 802.11a/b/g/n Wireless LAN Controller [14e4:432b] (rev 01)
	Subsystem: Dell Wireless 1510 Wireless-N WLAN Mini-Card [1028:000d]
	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 17
	Region 0: Memory at f69fc000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: wl
	Kernel modules: ssb, wl


** USB devices:
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 002: ID 0458:6001 KYE Systems Corp. (Mouse Systems) GF3000F Ethernet Adapter
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 002: ID 0566:3107 Monterey International Corp. Keyboard
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub


-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (500, 'unstable-debug'), (500, 'testing-debug'), (500, 'buildd-unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental-debug'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386, arm64, armhf

Kernel: Linux 4.18.0-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=es_AR.UTF-8, LC_CTYPE=es_AR.UTF-8 (charmap=UTF-8), LANGUAGE=es_AR:es (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-4.18.0-3-amd64 depends on:
ii  initramfs-tools [linux-initramfs-tool]  0.132
ii  kmod                                    25-2
ii  linux-base                              4.5

Versions of packages linux-image-4.18.0-3-amd64 recommends:
ii  apparmor             2.13.1-3+b1
ii  firmware-linux-free  3.4
ii  irqbalance           1.5.0-0.1

Versions of packages linux-image-4.18.0-3-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  extlinux                3:6.04~git20171011.af7e95c3+dfsg1-5
ii  grub-pc                 2.02+dfsg1-8
pn  linux-doc-4.18          <none>

Versions of packages linux-image-4.18.0-3-amd64 is related to:
ii  firmware-amd-graphics     20180825+dfsg-1
ii  firmware-atheros          20180825+dfsg-1
pn  firmware-bnx2             <none>
pn  firmware-bnx2x            <none>
pn  firmware-brcm80211        <none>
pn  firmware-cavium           <none>
pn  firmware-intel-sound      <none>
pn  firmware-intelwimax       <none>
pn  firmware-ipw2x00          <none>
pn  firmware-ivtv             <none>
pn  firmware-iwlwifi          <none>
pn  firmware-libertas         <none>
ii  firmware-linux-nonfree    20180825+dfsg-1
ii  firmware-misc-nonfree     20180825+dfsg-1
pn  firmware-myricom          <none>
pn  firmware-netxen           <none>
pn  firmware-qlogic           <none>
pn  firmware-realtek          <none>
pn  firmware-samsung          <none>
pn  firmware-siano            <none>
pn  firmware-ti-connectivity  <none>
pn  xen-hypervisor            <none>

-- no debconf information

[toc] | [next] | [standalone]

#62624

From	Bill Brelsford <wb@k2di.net>
Date	2018-12-02 03:00 +0100
Message-ID	<x0pd7-4yu-1@gated-at.bofh.it>
In reply to	#62616

I get the same behavior (except at 00000004) with
linux-image-4.18.0-3-686-pae.  4.18.0-2 was ok.

-- 
Bill Brelsford
wb@k2di.net

[toc] | [prev] | [next] | [standalone]

#62625

From	Ian Campbell <ijc@debian.org>
Date	2018-12-02 09:00 +0100
Message-ID	<x0uPv-8a1-1@gated-at.bofh.it>
In reply to	#62624

I think this might be the same as 914495.

On Sat, 2018-12-01 at 17:33 -0800, Bill Brelsford wrote:
> I get the same behavior (except at 00000004) with
> linux-image-4.18.0-3-686-pae.  4.18.0-2 was ok.

On my system I observed that `modprobe i915` had hung (it was killable
and I could try again, but it remained hung), in the dmesg I found a
splat at +0x52 in the same function:

[    4.971540] [drm:intel_ctx_workarounds_init [i915]] Number of context specific w/a: 0
[    4.972175] [drm:i915_gem_contexts_init [i915]] fake context support initialized
[    4.973980] [drm] RC6 disabled, disabling runtime PM support
[    4.974029] [drm:init_ring_common [i915]] rcs0 initialization failed [head=f69d8000], fudging
[    4.974059] BUG: unable to handle kernel NULL pointer dereference at 00000004
[    4.974065] *pdpt = 000000002c14b001 *pde = 0000000000000000 
[    4.974071] Oops: 0000 [#1] SMP
[    4.974075] CPU: 1 PID: 408 Comm: systemd-udevd Not tainted 4.18.0-3-686-pae #1 Debian 4.18.20-2
[    4.974078] Hardware name: Gigabyte Technology Co., Ltd. EG45M-DS2H/EG45M-DS2H, BIOS F2 07/18/2008
[    4.974129] EIP: gen4_render_ring_flush+0x52/0x100 [i915]
[    4.974131] Code: 84 ab 00 00 00 ba 16 00 00 00 89 f0 e8 47 fe ff ff 3d 00 f0 ff ff 77 6b 89 18 c7 40 04 02 40 00 7a 8b 56 44 8b 92 50 01 00 00 <8b> 52 04 c7 40 0c 00 00 00 00 c7 40 10 00 00 00 00 83 ca 04 89 50 
[    4.974167] EAX: f7a80000 EBX: 02000022 ECX: 00000000 EDX: 00000000
[    4.974170] ESI: ec754a00 EDI: ec29e200 EBP: f692fc88 ESP: f692fc80
[    4.974173] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010287
[    4.974176] CR0: 80050033 CR2: 00000004 CR3: 2c1836c0 CR4: 000006f0
[    4.974180] Call Trace:
[    4.974219]  i915_request_alloc+0x21d/0x350 [i915]
[    4.974258]  i915_gem_init+0x264/0x440 [i915]
[    4.974290]  i915_driver_load+0xa66/0xdd0 [i915]
[    4.974298]  ? acpi_dev_found+0x6c/0x80
[    4.974331]  ? i915_pci_remove+0x20/0x20 [i915]
[    4.974364]  i915_pci_probe+0x3a/0x70 [i915]
[    4.974369]  pci_device_probe+0xc7/0x160
[    4.974374]  driver_probe_device+0x2be/0x460
[    4.974378]  __driver_attach+0xe1/0x110
[    4.974382]  ? driver_probe_device+0x460/0x460
[    4.974386]  bus_for_each_dev+0x5a/0x90
[    4.974390]  driver_attach+0x19/0x20
[    4.974393]  ? driver_probe_device+0x460/0x460
[    4.974397]  bus_add_driver+0x12f/0x230
[    4.974400]  ? pci_bus_num_vf+0x20/0x20
[    4.974404]  driver_register+0x56/0xf0
[    4.974407]  ? 0xf82f8000
[    4.974411]  __pci_register_driver+0x3d/0x40
[    4.974446]  i915_init+0x4b/0x50 [i915]
[    4.974452]  do_one_initcall+0x42/0x1a9
[    4.974457]  ? kfree+0x145/0x160
[    4.974460]  ? kfree+0x145/0x160
[    4.974465]  ? _cond_resched+0x17/0x40
[    4.974469]  ? kmem_cache_alloc_trace+0x3b/0x1e0
[    4.974474]  ? do_init_module+0x21/0x1dc
[    4.974477]  ? do_init_module+0x21/0x1dc
[    4.974481]  do_init_module+0x50/0x1dc
[    4.974486]  load_module.constprop.58+0x2054/0x2690
[    4.974491]  sys_finit_module+0x8a/0xe0
[    4.974496]  do_fast_syscall_32+0x7f/0x1b0
[    4.974500]  entry_SYSENTER_32+0x4e/0x7c
[    4.974503] EIP: 0xb7f7bd39
[    4.974505] Code: 08 8b 80 5c cd ff ff 85 d2 74 02 89 02 5d c3 8b 04 24 c3 8b 0c 24 c3 8b 1c 24 c3 8b 3c 24 c3 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8d 76 
[    4.974542] EAX: ffffffda EBX: 00000011 ECX: 0100e4a0 EDX: 00000000
[    4.974545] ESI: 00ffc8b0 EDI: 0100d750 EBP: 0000000a ESP: bfd97c3c
[    4.974549] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000296
[    4.974553] Modules linked in: snd_hda_codec_realtek(+) intel_powerclamp(-) snd_hda_codec_generic coretemp kvm_intel dvb_usb_dib0700(+) snd_hda_intel dib7000m kvm dib0090 ppdev i915(+) dib0070 dib3000mc snd_hda_codec irqbypass evdev dibx000_common ir_rc6_decoder dvb_usb snd_hda_core dvb_core rc_rc6_mce serio_raw pcspkr video cp210x snd_hwdep snd_pcm usbserial mceusb(+) sg iTCO_wdt iTCO_vendor_support rc_core drm_kms_helper snd_timer parport_pc parport snd drm soundcore button pcc_cpufreq acpi_cpufreq i2c_algo_bit ext4 crc16 mbcache jbd2 crc32c_generic fscrypto ecb crypto_simd cryptd aes_i586 sr_mod cdrom sd_mod ata_generic pata_it8213 ata_piix firewire_ohci firewire_core crc_itu_t i2c_i801 libata scsi_mod lpc_ich r8169 mii ehci_pci uhci_hcd ehci_hcd usbcore usb_common
[    4.974615] CR2: 0000000000000004
[    4.974618] ---[ end trace 5620155027e66da5 ]---
[    4.974667] EIP: gen4_render_ring_flush+0x52/0x100 [i915]
[    4.974670] Code: 84 ab 00 00 00 ba 16 00 00 00 89 f0 e8 47 fe ff ff 3d 00 f0 ff ff 77 6b 89 18 c7 40 04 02 40 00 7a 8b 56 44 8b 92 50 01 00 00 <8b> 52 04 c7 40 0c 00 00 00 00 c7 40 10 00 00 00 00 83 ca 04 89 50 
[    4.974706] EAX: f7a80000 EBX: 02000022 ECX: 00000000 EDX: 00000000
[    4.974615] CR2: 0000000000000004
[    4.974618] ---[ end trace 5620155027e66da5 ]---
[    4.974667] EIP: gen4_render_ring_flush+0x52/0x100 [i915]
[    4.974670] Code: 84 ab 00 00 00 ba 16 00 00 00 89 f0 e8 47 fe ff ff 3d 00 f0 ff ff 77 6b 89 18 c7 40 04 02 40 00 7
a 8b 56 44 8b 92 50 01 00 00 <8b> 52 04 c7 40 0c 00 00 00 00 c7 40 10 00 00 00 00 83 ca 04 89 50 
[    4.974706] EAX: f7a80000 EBX: 02000022 ECX: 00000000 EDX: 00000000
[    4.974710] ESI: ec754a00 EDI: ec29e200 EBP: f692fc88 ESP: d3a08dfc
[    4.974713] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010287
[    4.974717] CR0: 80050033 CR2: 00000004 CR3: 2c1836c0 CR4: 000006f0

[toc] | [prev] | [next] | [standalone]

#62709 — Bug#915178: fixed-in-experimental 4.19.5-1~exp1 amd64

From	"dune97@yahoo.com" <dune97@yahoo.com>
Date	2018-12-10 19:10 +0100
Subject	Bug#915178: fixed-in-experimental 4.19.5-1~exp1 amd64
Message-ID	<x3yad-68W-5@gated-at.bofh.it>
In reply to	#62616

[Multipart message — attachments visible in raw view] — view raw

offlist please re: to email

I see the blank screen after KMS switch using 4.18-20-2 amd64 on both Debian testing and unstable.
upgrade to 4.19.5-1~exp1 amd64 fixed both testing and unstable for me.
I have dmesg logs of oops with  4.18.0-3-amd64-dbg installed using both  
vmlinuz loglevel=7 
ftrace_dump_on_oops
best regards
see also:
#915210#914495

[toc] | [prev] | [standalone]

csiph-web

Bug#915178: i915: unable to handle kernel NULL pointer dereference at 0000000000000008

Contents

#62616 — Bug#915178: i915: unable to handle kernel NULL pointer dereference at 0000000000000008

#62624

#62625

#62709 — Bug#915178: fixed-in-experimental 4.19.5-1~exp1 amd64