--- Begin Message ---
- To: submit@bugs.debian.org
- Subject: Linux kernel 2.6.18-5 locks up (null pointer dereference) reproducibly when using serial console (via IPMI)
- From: Adorjáni Gábor <adi@adi.priv.hu>
- Date: Tue, 11 Dec 2007 13:33:10 +0100
- Message-id: <475E8386.1000107@adi.priv.hu>
Package: linux-image-2.6.18-5-amd64
Version: 2.6.18.dfsg.1-13etch5
Severity: critical
After today's kernel upgrade from the Etch security repository, I rebooted our
server and watched the boot process via serial console tunneled through the
IPMI BMC's Serial Over Lan feature. To my surprise, the kernel died with a
null pointer dereference!
The hardware is a Supermicro PDSMA+ with an AOC-IPMI20-E management card and a
Core2 Quad processor. I am using the AMD64 version of Etch and everything else
works fine.
With the previous kernel version (2.6.18.dfsg.1-13etch4) even the serial
console worked well, that's why I 'dared' watch the boot process like this.
Kernel version linux-image-2.6.18-5-vserver-amd64 (2.6.18.dfsg.1-13etch5) also
produces this bug. The error is reproducible: if I reboot the machine and the
serial console is connected when the kernel starts after GRUB, it is
definitely going to freeze. If I disconnect the console client and then reset
the machine remotely via IPMI, it boots up well and functions as expected. I
discovered this accidentally when I tried a reset without a connected serial
console.
I repeat: _there were *NO* problems with 2.6.18.dfsg.1-13etch4_!
Some information about the system and the bootlog comes:
---- /proc/cmdline
root=LABEL=root ro console=ttyS1,19200n8r console=tty0 vga=extended
elevator=deadline
---- /boot/grub/menu.lst , appropriate snippet
title Debian GNU/Linux, kernel 2.6.18-5-amd64
root (hd0,0)
kernel /boot/vmlinuz-2.6.18-5-amd64 root=LABEL=root ro
console=ttyS1,19200n8r console=tty0 vga=extended elevator=deadline
initrd /boot/initrd.img-2.6.18-5-amd64
savedefault
---- Kernel bootmessage, when ipmicli is already connected and working,
---- watching the whole reboot process initiated from SSH. The line after
---- 'Initializing CPU#2' is serial noise, doesn't have any effects on
---- the reboot process.
ipmi>console
You can press Ctrl-B to terminate Text Remote Console Redirection.
Press [Enter] to continue...
Connected to _XXXX_ at 19200 bps
Debian GNU/Linux 4.0 _XXXX_ ttyS1
_XXXX_ login: xport_rdev(sde1)
md: stopping all md devices.
Synchronizing SCSI cache for disk sde:
Synchronizing SCSI cache for disk sdd:
Synchronizing SCSI cache for disk sdc:
Synchronizing SCSI cache for disk sdb:
ACPI: PCI interrupt for device 0000:0e:00.0 disabled
ACPI: PCI interrupt for device 0000:0d:00.0 disabled
megaraid: flushing adapter 0...done
Restarting system.
.
machine restart
Phoenix cME(tm) TrustedCore(tm) Server
Copyright 1985-2004 Phoenix Technologies Ltd.
All Rights Reserved
Supermicro PDSMi/PDSMA/PDSMi+/PDSMA+ BIOS Rev 1.2b
CPU = 1 Processors Detected, Cores per Processor = 4
Intel(R) Core(TM)2 Quad CPU 2.40GHz
FSB at 1066MHz
Intel(R) Extended Memory 64 Technology.
DRAM Type : DDR2-667 ECC Support
4095M System RAM Passed
4096K x 2 Cache SRAM Passed
System BIOS shadowed
Video BIOS shadowed
Press <DEL> for SETUP
Booting 'Debian GNU/Linux, kernel 2.6.18-5-amd64'
798912K upper memory)
ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄż
ł Debian GNU/Linux, kernel 2.6.18-5-amd64 ł
ł Debian GNU/Linux, kernel 2.6.18-5-amd64 (single-user mode) ł
ł Debian GNU/Linux, kernel 2.6.18-5-vserver-amd64 ł
ł Debian GNU/Linux, kernel 2.6.18-5-vserver-amd64 (single-user mode) ł
ł Other operating systems: ł
ł Debian GNU/Linux, kernel 2.6.18-5-amd64 (on /dev/sda1) ł
ł Debian GNU/Linux, kernel 2.6.18-5-amd64 (single-user mode) (on /dev/s> ł
ł ł
Booting 'Debian GNU/Linux, kernel 2.6.18-5-amd64'
root (hd0,0)
Filesystem type is ext2fs, partition type 0x83
kernel /boot/vmlinuz-2.6.18-5-amd64 root=LABEL=root ro console=ttyS1,19200n8r
console=tty0 vga=extended elevator=deadline
[Linux-bzImage, setup=0x1e00, size=0x16f435]
initrdootdata ok (command line is root=LABEL=root ro console=ttyS1,19200n8r
console=tty0 vga=extended elevator=deadline )
Linux version 2.6.18-5-amd64 (Debian 2.6.18.dfsg.1-13etch5) (dannf@debian.org)
(gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)) #1 SMP Mon Dec 3
04:55:28 UTC 2007
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009cc00 (usable)
BIOS-e820: 000000000009cc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000e4000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 00000000e7ee0000 (usable)
BIOS-e820: 00000000e7ee0000 - 00000000e7ee9000 (ACPI data)
BIOS-e820: 00000000e7ee9000 - 00000000e7f00000 (ACPI NVS)
BIOS-e820: 00000000e7f00000 - 00000000e8000000 (reserved)
BIOS-e820: 00000000f0000000 - 00000000f4000000 (reserved)
BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
BIOS-e820: 00000000ff000000 - 0000000100000000 (reserved)
BIOS-e820: 0000000100000000 - 0000000118000000 (usable)
DMI present.
No NUMA configuration found
Faking a node at 0000000000000000-0000000118000000
Bootmem setup node 0 0000000000000000-0000000118000000
ACPI: PM-Timer IO Port: 0x1008
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
Processor #0 6:15 APIC version 20
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
Processor #1 6:15 APIC version 20
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled)
Processor #2 6:15 APIC version 20
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x03] enabled)
Processor #3 6:15 APIC version 20
ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1])
ACPI: IOAPIC (id[0x04] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 4, version 32, address 0xfec00000, GSI 0-23
ACPI: IOAPIC (id[0x05] address[0xfec10000] gsi_base[24])
IOAPIC[1]: apic_id 5, version 32, address 0xfec10000, GSI 24-47
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 high edge)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
Setting APIC routing to physical flat
ACPI: HPET id: 0xffffffff base: 0xfed00000
Using ACPI (MADT) for SMP configuration information
Allocating PCI resources starting at f5000000 (gap: f4000000:ac00000)
SMP: Allowing 4 CPUs, 0 hotplug CPUs
Built 1 zonelists. Total pages: 1031617
Kernel command line: root=LABEL=root ro console=ttyS1,19200n8r console=tty0
vga=extended elevator=deadline
Initializing CPU#0
PID hash table entries: 4096 (order: 12, 32768 bytes)
time.c: Using 14.318180 MHz WALL HPET GTOD HPET/TSC timer.
time.c: Detected 2394.004 MHz processor.
Console: colour VGA+ 80x50
Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Checking aperture...
PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
Placing software IO TLB between 0x1648000 - 0x5648000
Memory: 4048428k/4587520k available (1927k kernel code, 144324k reserved, 868k
data, 176k init)
Calibrating delay using timer specific routine.. 4792.22 BogoMIPS (lpj=9584447)
Security Framework v1.0.0 initialized
SELinux: Disabled at boot.
Capability LSM initialized
Mount-cache hash table entries: 256
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 4096K
using mwait in idle threads.
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 0
SMP alternatives: switching to UP code
ACPI: Core revision 20060707
Using local APIC timer interrupts.
result 16625033
Detected 16.625 MHz APIC timer.
SMP alternatives: switching to SMP code
Booting processor 1/4 APIC 0x1
Initializing CPU#1
Calibrating delay using timer specific routine.. 4788.15 BogoMIPS (lpj=9576312)
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 4096K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 1
CPU1: Thermal monitoring enabled (TM2)
Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz stepping 0b
SMP alternatives: switching to SMP code
Booting processor 2/4 APIC 0x2
Initializing CPU#2
AUÍÍŃĽš95%ÝŃĄ˝˙OK.ššąQ5ŃąImer specHŹUĽĄ-UĽĄĺÍĽąAÉ˝ÍÍ˝É%UĽÉ˝ÍÍ˝É
migration_cost=37,3568
checking if image is initramfs... it is
Freeing initrd memory: 5647k freed
NET: Registered protocol family 16
ACPI: bus type pci registered
PCI: Using MMCONFIG at f0000000
PCI: No mmconfig possible on device f:0
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (0000:00)
PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
PCI: PXH quirk detected, disabling MSI for SHPC device
PCI: Transparent bridge - 0000:00:1e.0
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 10 *11 14 15)
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 10 11 14 15) *12
ACPI: PCI Interrupt Link [LNKC] (IRQs 3 10 11 14 15) *5
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 10 *11 14 15)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 10 11 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKF] (IRQs<7>Losing some ticks... checking if CPU
frequency changed.
3 10 11 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 10 11 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 *10 11 14 15)
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI init
pnp: PnP ACPI: found 14 devices
usbcore: registered new driver usbfs
usbcore: registered new driver hub
PCI: Using ACPI for IRQ routing
PCI: If a device doesn't work, try "pci=routeirq". If it helps, post a report
hpet0: at MMIO 0xfed00000 (virtual 0xffffffffff5fe000), IRQs 2, 8, 0
hpet0: 3 64-bit timers, 14318180 Hz
PCI-GART: No AMD northbridge found.
PCI: Bridge: 0000:00:01.0
IO window: disabled.
MEM window: disabled.
PREFETCH window: disabled.
PCI: Bridge: 0000:0a:01.0
IO window: disabled.
MEM window: ef200000-ef2fffff
PREFETCH window: ef000000-ef0fffff
PCI: Bridge: 0000:09:00.0
IO window: disabled.
MEM window: ef200000-ef2fffff
PREFETCH window: ef000000-ef0fffff
PCI: Bridge: 0000:00:1c.0
IO window: disabled.
MEM window: ef100000-ef2fffff
PREFETCH window: ef000000-ef0fffff
PCI: Bridge: 0000:00:1c.4
IO window: 4000-4fff
MEM window: ef300000-ef3fffff
PREFETCH window: disabled.
PCI: Bridge: 0000:00:1c.5
IO window: 5000-5fff
MEM window: ef500000-ef5fffff
PREFETCH window: disabled.
PCI: Ignore bogus resource 6 [0:0] of 0000:0f:00.0
PCI: Bridge: 0000:00:1e.0
IO window: 6000-6fff
MEM window: ef400000-ef4fffff
PREFETCH window: ee000000-eeffffff
GSI 16 sharing vector 0xA9 and IRQ 16
ACPI: PCI Interrupt 0000:00:01.0[A] -> GSI 16 (level, low) -> IRQ 169
GSI 17 sharing vector 0xB1 and IRQ 17
ACPI: PCI Interrupt 0000:00:1c.0[A] -> GSI 17 (level, low) -> IRQ 177
ACPI: PCI Interrupt 0000:00:1c.4[A] -> GSI 17 (level, low) -> IRQ 177
ACPI: PCI Interrupt 0000:00:1c.5[B] -> GSI 16 (level, low) -> IRQ 169
NET: Registered protocol family 2
IP route cache hash table entries: 131072 (order: 8, 1048576 bytes)
TCP established hash table entrscsi[0]: scanning scsi channel 1 [Phy 1] for
non-raid devices
scsi[0]: scanning scsi channel 2 [virtual] for logical drives
Vendor: MegaRAID Model: LD 0 RAID1 139G Rev: 414H
Type: Direct-Access ANSI SCSI revision: 02
SCSI device sda: 285155328 512-byte hdwr sectors (146000 MB)
sda: Write Protect is off
sda: asking for cache data failed
sda: assuming drive cache: write through
SCSI device sda: 285155328 512-byte hdwr sectors (146000 MB)
sda: Write Protect is off
sda: asking for cache data failed
sda: assuming drive cache: write through
sda: sda1 sda2 sda3 sda4
sd 0:2:0:0: Attached scsi disk sda
ACPI (exconfig-0455): Dynamic SSDT Load - OemId [ PmRef] OemTableId [ Cpu0Ist]
[20060707]
ACPI (exconfig-0455): Dynamic SSDT Load - OemId [ PmRef] OemTableId [ Cpu1Ist]
[20060707]
ACPI (exconfig-0455): Dynamic SSDT Load - OemId [ PmRef] OemTableId [ Cpu2Ist]
[20060707]
ACPI (exconfig-0455): Dynamic SSDT Load - OemId [ PmRef] OemTableId [ Cpu3Ist]
[20060707]
ACPI Exception (acpi_processor-0681): AE_NOT_FOUND, Processor Device is not
present [20060707]
ACPI: Getting cpuindex for acpiid 0x4
ACPI Exception (acpi_processor-0681): AE_NOT_FOUND, Processor Device is not
present [20060707]
ACPI: Getting cpuindex for acpiid 0x5
ACPI Exception (acpi_processor-0681): AE_NOT_FOUND, Processor Device is not
present [20060707]
ACPI: Getting cpuindex for acpiid 0x6
ACPI Exception (acpi_processor-0681): AE_NOT_FOUND, Processor Device is not
present [20060707]
ACPI: Getting cpuindex for acpiid 0x7
Intel(R) PRO/1000 Network Driver - version 7.1.9-k4-NAPI
Copyright (c) 1999-2006 Intel Corporation.
ACPI: PCI Interrupt 0000:0d:00.0[A] -> GSI 16 (level, low) -> IRQ 169
USB Universal Host Controller Interface driver v3.0
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
e1000: 0000:0d:00.0: e1000_probe: (PCI Express:2.5Gb/s:Width x1) 00:30:48:92:15:f8
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
ACPI: PCI Interrupt 0000:0e:00.0[A] -> GSI 17 (level, low) -> IRQ 177
e1000: 0000:0e:00.0: e1000_probe: (PCI Express:2.5Gb/s:Width x1) 00:30:48:92:15:f9
e1000: eth1: e1000_probe: Intel(R) PRO/1000 Network Connection
GSI 19 sharing vector 0xE9 and IRQ 19
ACPI: PCI Interrupt 0000:00:1d.7[A] -> GSI 23 (level, low) -> IRQ 233
ehci_hcd 0000:00:1d.7: EHCI Host Controller
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:1d.7: debug port 1
ehci_hcd 0000:00:1d.7: irq 233, io mem 0xef800000
ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 8 ports detected
ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 23 (level, low) -> IRQ 233
uhci_hcd 0000:00:1d.0: UHCI Host Controller
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 2
uhci_hcd 0000:00:1d.0: irq 233, io base 0x00003000
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
GSI 20 sharing vector 0x32 and IRQ 20
ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 19 (level, low) -> IRQ 50
uhci_hcd 0000:00:1d.1: UHCI Host Controller
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 3
uhci_hcd 0000:00:1d.1: irq 50, io base 0x00003020
usb usb3: configuration #1 chosen from 1 choice
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
GSI 21 sharing vector 0x3A and IRQ 21
ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 18 (level, low) -> IRQ 58
uhci_hcd 0000:00:1d.2: UHCI Host Controller
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 4
uhci_hcd 0000:00:1d.2: irq 58, io base 0x00003040
usb usb4: configuration #1 chosen from 1 choice
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.3[D] -> GSI 16 (level, low) -> IRQ 169
uhci_hcd 0000:00:1d.3: UHCI Host Controller
uhci_hcd 0000:00:1d.3: new USB bus registered, assigned bus number 5
uhci_hcd 0000:00:1d.3: irq 169, io base 0x00003060
usb usb5: configuration #1 chosen from 1 choice
hub 5-0:1.0: USB hub found
hub 5-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (level, low) -> IRQ 50
ahci 0000:00:1f.2: AHCI 0001.0100 32 slots 4 ports 3 Gata3: SATA link up 1.5
Gbps (SStatus 113 SControl 300)
ata3.00: ATA-7, max UDMA/133, 586072368 sectors: LBA48 NCQ (depth 31/32)
ata3.00: ata3: dev 0 multi count 16
ata3.00: configured for UDMA/133
scsi4 : ahci
ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata4.00: ATA-7, max UDMA/133, 586072368 sectors: LBA48 NCQ (depth 31/32)
ata4.00: ata4: dev 0 multi count 16
ata4.00: configured for UDMA/133
Vendor: ATA Model: WDC WD800JD-08MS Rev: 10.0
Type: Direct-Access ANSI SCSI revision: 05
SCSI device sdb: 156312576 512-byte hdwr sectors (80032 MB)
sdb: Write Protect is off
SCSI device sdb: drive cache: write back
SCSI device sdb: 156312576 512-byte hdwr sectors (80032 MB)
sdb: Write Protect is off
SCSI device sdb: drive cache: write back
sdb: sdb1
sd 1:0:0:0: Attached scsi disk sdb
Vendor: ATA Model: WDC WD800JD-08MS Rev: 10.0
Type: Direct-Access ANSI SCSI revision: 05
SCSI device sdc: 156312576 512-byte hdwr sectors (80032 MB)
sdc: Write Protect is off
SCSI device sdc: drive cache: write back
SCSI device sdc: 156312576 512-byte hdwr sectors (80032 MB)
sdc: Write Protect is off
SCSI device sdc: drive cache: write back
sdc: sdc1
sd 2:0:0:0: Attached scsi disk sdc
Vendor: ATA Model: ST3300831AS Rev: 3.03
Type: Direct-Access ANSI SCSI revision: 05
SCSI device sdd: 586072368 512-byte hdwr sectors (300069 MB)
sdd: Write Protect is off
SCSI device sdd: drive cache: write back
SCSI device sdd: 586072368 512-byte hdwr sectors (300069 MB)
sdd: Write Protect is off
SCSI device sdd: drive cache: write back
sdd: sdd1
sd 3:0:0:0: Attached scsi disk sdd
Vendor: ATA Model: ST3300831AS Rev: 3.02
Type: Direct-Access ANSI SCSI revision: 05
SCSI device sde: 586072368 512-byte hdwr sectors (300069 MB)
sde: Write Protect is off
SCSI device sde: drive cache: write back
SCSI device sde: 586072368 512-byte hdwr sectors (300069 MB)
sde: Write Protect is off
SCSI device sde: drive cache: write back
sde: sde1
sd 4:0:0:0: Attached scsi disk sde
ICH7: IDE controller at PCI slot 0000:00:1f.1
ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 18 (level, low) -> IRQ 58
ICH7: chipset revision 1
ICH7: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0x30a0-0x30a7, BIOS settings: hda:pio, hdb:pio
ide1: BM-DMA at 0x30a8-0x30af, BIOS settings: hdc:pio, hdd:pio
md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 4.39
md: raid1 personality registered for level 1
md: md0 stopped.
md: bind<sde1>
md: bind<sdd1>
raid1: raid set md0 active with 2 out of 2 mirrors
device-mapper: ioctl: 4.7.0-ioctl (2006-06-24) initialised: dm-devel@redhat.com
kjournald starting. Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
scsi 0:0:6:0: Attached scsi generic sg0 type 3
sd 0:2:0:0: Attached scsi generic sg1 type 0
sd 1:0:0:0: Att]XËĽÍŃĺÁ˙intel_rng: FWH not detected
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
input: PC Speaker as /class/input/input0
ACPI: PCI Interrupt 0000:00:1f.3[B] -> GSI 19 (level, low) -> IRQ 50
Adding 1951888k swap on /dev/sda2. Priority:-1 extents:1 across:1951888k
EXT3 FS on sda1, internal journal
loop: AES key scrubbing enabled
loop: loaded (max 8 devices)
ipmi message handler version 39.0
ipmi device interface
Copyright (C) 2004 MontaVista Software - IPMI Powerdown via sys_reboot.
IPMI System Interface driver.
ipmi_si: Trying SMBIOS-specified KCS state machine at I/O address 0xca8, slave
address 0x20, irq 0
ipmi: Found new BMC (man_id: 0x0015d9, prod_id: 0x1134, dev_id: 0x20)
IPMI poweroff: Unable to find a poweroff function that will work, giving up
IPMI KCS interface initialized
IPMI Watchdog: driver initialized
kjournald starting. Commit interval 30 seconds
EXT3 FS on sda3, internal journal
EXT3-fs: mounted filesystem with writeback data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS on dm-0, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting. Commit interval 15 seconds
EXT3 FS on dm-1, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting. Commit interval 30 seconds
EXT3 FS on dm-2, internal journal
EXT3-fs: mounted filesystem with journal data mode.
kjournald starting. Commit interval 10 seconds
EXT3 FS on dm-3, internal journal
EXT3-fs: mounted filesystem with journal data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS on dm-4, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS on dm-5, internal journal
EXT3-fs: mounted filesystem with journal data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS on dm-6, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS on sdb1, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS on sdc1, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
e1000: eth0: e1000_watchdog: NIC Link is Up 1000 Mbps Full Duplex
ip_tables: (C) 2000-2006 Netfilter Core Team
Netfilter messages via NETLINK v0.30.
ip_conntrack version 2.4 (8192 buckets, 65536 max) - 304 bytes per conntrack
ACPI: Power Button (FF) [PWRF]
ACPI: Power Button (CM) [PWRB]
Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP:
[<ffffffff8036782b>] check_modem_status+0x80/0xf3
PGD 109e7c067 PUD 10d1d2067 PMD 0
Oops: 0000 [1] SMP
CPU 0
Modules linked in: button ac battery ipt_REJECT ipt_recent xt_tcpudp xt_state
ip_conntrack nfnetlink iptable_filter ip_tables x_tables quota_v2
ipmi_watchdog ipmi_si ipmi_poweroff ipmi_devintf ipmi_msghandler loop evdev
i2c_i801 pcspkr serio_raw i2c_core shpchp pci_hotplug sg ext3 jbd mbcache
dm_mirror dm_snapshot dm_mod raid1 md_mod piix ahci generic libata ide_core
uhci_hcd ehci_hcd e1000 thermal processor fan megaraid_mbox megaraid_mm sd_mod
scsi_mod
Pid: 3213, comm: sadc Not tainted 2.6.18-5-amd64 #1
RIP: 0010:[<ffffffff8036782b>] [<ffffffff8036782b>] check_modem_status+0x80/0xf3
RSP: 0018:ffff810109e95da8 EFLAGS: 00010002
RAX: 0000000000000000 RBX: ffffffff8050d540 RCX: 0000000000000000
RDX: 00000000000002fe RSI: 0000000000000006 RDI: ffffffff8050d540
RBP: 0000000000000011 R08: 00000000ffffffff R09: 0000000000000020
R10: 0000000000000000 R11: 0000000000000000 R12: ffff810109f7104a
R13: 0000000000000003 R14: ffffffff8041a804 R15: 000000000000004a
FS: 00002b8285cae6d0(0000) GS:ffffffff80521000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 000000010af4a000 CR4: 00000000000006e0
Process sadc (pid: 3213, threadinfo ffff810109e94000, task ffff8101120017b0)
Stack: 0000000000000286 ffffffff8050d540 0000000000000022 ffffffff803678a7
ffffffff8050d540 ffffffff80364181 0000000000000002 0000000000000000
ffff810112626840 000000008020cc89 0000000000000001 0000000000008001
Call Trace:
[<ffffffff803678a7>] serial8250_get_mctrl+0x9/0x3a
[<ffffffff80364181>] uart_read_proc+0x121/0x418
[<ffffffff8023839a>] proc_file_read+0xfa/0x247
[<ffffffff8020af98>] vfs_read+0xcb/0x171
[<ffffffff8020fbbf>] sys_read+0x45/0x6e
[<ffffffff80257b56>] system_call+0x7e/0x83
Code: 48 8b 10 ff 43 30 f6 40 1b 04 74 48 89 e8 83 e0 10 f6 82 2c
RIP [<ffffffff8036782b>] check_modem_status+0x80/0xf3
RSP <ffff810109e95da8>
CR2: 0000000000000000
Text Remote Console Redirection is terminated by Ctrl-B.
ipmi>close
~$
If you need any further information, please contact me on my mail address.
This is a production machine, so I am not going to reboot it for further
experiments.
Regards,
Gábor
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