Kernel Memory Errors (Debian Woody 2.4.18-bf2.4)

Kernel Memory Errors (Debian Woody 2.4.18-bf2.4)

[David Lloyd]

[-- Attachment #1: Type: text/plain, Size: 388 bytes --]


I am experiencing some strange behaviour with Debian Woody. I have
attached a log as plain text and the output of dmesg.

I suspect it may be faulty RAM.

This occurs ONLY when I am in a KDE kdm managed X session and press
ctrl+alt+f[1-6] to get to a virtual console. It's not always consistent
but that's when it's most likely to happen.

X disappears from underneath me as well.



DSL

[-- Attachment #2: logs.txt --]
[-- Type: text/plain, Size: 272 bytes --]


Nov 12 09:08:41 lothlorien kernel: memory : ca174cd0
Nov 12 09:08:41 lothlorien kernel: memory : 00000000
Nov 12 09:08:41 lothlorien kernel: memory : ca174410
Nov 12 09:08:42 lothlorien kdm[4949]: session start failed
Nov 12 09:08:43 lothlorien kernel: memory : ca174cd0

[-- Attachment #3: log.dmsg --]
[-- Type: application/octet-stream, Size: 6395 bytes --]


Linux version 2.4.18-bf2.4 (root@zombie) (gcc version 2.95.4 20011002 (Debian prerelease)) #1 Son Apr 14 09:53:28 CEST 2002
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
 BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 000000000fef0000 (usable)
 BIOS-e820: 000000000fef0000 - 000000000fef3000 (ACPI NVS)
 BIOS-e820: 000000000fef3000 - 000000000ff00000 (ACPI data)
 BIOS-e820: 00000000ffb00000 - 0000000100000000 (reserved)
On node 0 totalpages: 65264
zone(0): 4096 pages.
zone(1): 61168 pages.
zone(2): 0 pages.
Local APIC disabled by BIOS -- reenabling.
Found and enabled local APIC!
Kernel command line: auto BOOT_IMAGE=Linux ro root=305
Initializing CPU#0
Detected 851.937 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 1697.38 BogoMIPS
Memory: 253632k/261056k available (1783k kernel code, 7036k reserved, 549k data, 280k init, 0k highmem)
Dentry-cache hash table entries: 32768 (order: 6, 262144 bytes)
Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
CPU: Before vendor init, caps: 0383fbff 00000000 00000000, vendor = 0
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 128K
CPU: After vendor init, caps: 0383fbff 00000000 00000000 00000000
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU:     After generic, caps: 0383fbff 00000000 00000000 00000000
CPU:             Common caps: 0383fbff 00000000 00000000 00000000
CPU: Intel Celeron (Coppermine) stepping 0a
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
Checking for popad bug... OK.
POSIX conformance testing by UNIFIX
enabled ExtINT on CPU#0
ESR value before enabling vector: 00000000
ESR value after enabling vector: 00000000
Using local APIC timer interrupts.
calibrating APIC timer ...
..... CPU clock speed is 851.9429 MHz.
..... host bus clock speed is 100.2284 MHz.
cpu: 0, clocks: 1002284, slice: 501142
CPU0<T0:1002272,T1:501120,D:10,S:501142,C:1002284>
mtrr: v1.40 (20010327) Richard Gooch (rgooch@atnf.csiro.au)
mtrr: detected mtrr type: Intel
PCI: PCI BIOS revision 2.10 entry at 0xfb130, last bus=1
PCI: Using configuration type 1
PCI: Probing PCI hardware
Unknown bridge resource 2: assuming transparent
PCI: Using IRQ router PIIX [8086/2420] at 00:1f.0
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
VFS: Diskquotas version dquot_6.4.0 initialized
Journalled Block Device driver loaded
vga16fb: initializing
vga16fb: mapped to 0xc00a0000
Console: switching to colour frame buffer device 80x30
fb0: VGA16 VGA frame buffer device
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
Real Time Clock Driver v1.10e
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
PIIX4: IDE controller on PCI bus 00 dev f9
PIIX4: chipset revision 1
PIIX4: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:DMA
hda: ST340016A, ATA DISK drive
hdb: CD-ROM Drive/F5D, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: 78165360 sectors (40021 MB) w/2048KiB Cache, CHS=4865/255/63
hdb: ATAPI 48X CD-ROM drive, 128kB Cache
Uniform CD-ROM driver Revision: 3.12
ide-floppy driver 0.97.sv
Partition check:
 hda: hda1 hda2 < hda5 hda6 hda7 hda8 hda9 >
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
Loading I2O Core - (c) Copyright 1999 Red Hat Software
I2O configuration manager v 0.04.
  (C) Copyright 1999 Red Hat Software
loop: loaded (max 8 devices)
Compaq CISS Driver (v 2.4.5)
sis900.c: v1.08.02 11/30/2001
eth0: SiS 900 Internal MII PHY transceiver found at address 1.
eth0: Using transceiver found at address 1 as default
eth0: SiS 900 PCI Fast Ethernet at 0xc000, IRQ 11, 00:d0:09:77:62:51.
HDLC support module revision 1.02 for Linux 2.4
Cronyx Ltd, Synchronous PPP and CISCO HDLC (c) 1994
Linux port (c) 1998 Building Number Three Ltd & Jan "Yenya" Kasprzak.
ide-floppy driver 0.97.sv
Promise Fasttrak(tm) Softwareraid driver 0.03beta: No raid array found
Highpoint HPT370 Softwareraid driver for linux version 0.01
No raid array found
SCSI subsystem driver Revision: 1.00
Red Hat/Adaptec aacraid driver, Apr 14 2002
DC390: 0 adapters found
3ware Storage Controller device driver for Linux v1.02.00.016.
3w-xxxx: No cards with valid units found.
request_module[scsi_hostadapter]: Root fs not mounted
request_module[scsi_hostadapter]: Root fs not mounted
i2o_scsi.c: Version 0.0.1
  chain_pool: 0 bytes @ cfeecc20
  (512 byte buffers X 4 can_queue X 0 i2o controllers)
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP: Hash tables configured (established 16384 bind 16384)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 280k freed
Adding Swap: 497972k swap-space (priority -1)
EXT3 FS 2.4-0.9.17, 10 Jan 2002 on ide0(3,5), internal journal
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
usb-uhci.c: $Revision: 1.275 $ time 10:29:43 Apr 14 2002
usb-uhci.c: High bandwidth mode enabled
PCI: Found IRQ 4 for device 00:1f.2
PCI: Setting latency timer of device 00:1f.2 to 64
usb-uhci.c: USB UHCI at I/O 0xd000, IRQ 4
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered, assigned bus number 1
hub.c: USB hub found
hub.c: 2 ports detected
usb-uhci.c: v1.275:USB Universal Host Controller Interface driver
usb.c: registered new driver keyboard
usbkbd.c: :USB HID Boot Protocol keyboard driver
hub.c: USB new device connect on bus1/2, assigned device number 2
Initializing USB Mass Storage driver...
usb.c: registered new driver usb-storage

Re: Kernel Memory Errors (Debian Woody 2.4.18-bf2.4)

[Neale Banks]

Hi David,

On Tue, 12 Nov 2002, David Lloyd wrote:

> 
> I am experiencing some strange behaviour with Debian Woody. I have
> attached a log as plain text and the output of dmesg.
> 
> I suspect it may be faulty RAM.

Nah, it's most likely not telling you anything like that.  Your log:

	Nov 12 09:08:41 lothlorien kernel: memory : ca174cd0
	Nov 12 09:08:41 lothlorien kernel: memory : 00000000
	Nov 12 09:08:41 lothlorien kernel: memory : ca174410
	Nov 12 09:08:42 lothlorien kdm[4949]: session start failed
	Nov 12 09:08:43 lothlorien kernel: memory : ca174cd0

The giveaway is the space before the colon.  Here's what I previously
posted on this issue:

===================================8<===================================
On Fri, 20 Sep 2002, Neale Banks wrote:
> 
> Date: Fri, 20 Sep 2002 09:15:27 +1000 (EST)
> From: Neale Banks <neale@lowendale.com.au>
> To: linux-kernel@vger.kernel.org
> Cc: Gustavo Lozano <glozano@noldata.com>
> Subject: [PATCH 2.(2|4)] agpgart_fe printk is too terse
> 
> 
> Appended patch against 2.4.20-pre4 fixes a (IMHO) way-too-terse printk in
> drivers/char/agp/agpgart_fe.c
> 
> Motivation is that when scrounging through syslog etc finding an entry
> that simply says "memory : <value>" leaves rather too much to the
> imagination (not to mention being interesting to grep out of the
> source).
> 
> This applies to 2.2 also (but has already been applied to 2.5).
> 
> Thanks,
> Neale.
> 
> --- linux-2.4.20-pre4/drivers/char/agp/agpgart_fe.c	Mon Aug 13 03:38:48 2001
> +++ linux-2.4.20-pre4-ntb/drivers/char/agp/agpgart_fe.c	Fri Sep 20 08:57:40 2002
> @@ -301,7 +301,7 @@
>  	agp_memory *memory;
>  
>  	memory = agp_allocate_memory(pg_count, type);
> -   	printk(KERN_DEBUG "memory : %p\n", memory);
> +   	printk(KERN_DEBUG "agp_allocate_memory: %p\n", memory);
>  	if (memory == NULL) {
>  		return NULL;
>  	}
> 
===================================8<===================================

> This occurs ONLY when I am in a KDE kdm managed X session and press
> ctrl+alt+f[1-6] to get to a virtual console. It's not always consistent
> but that's when it's most likely to happen.
> 
> X disappears from underneath me as well.

Probably an X issue that's not relevant here.

What's the video card?

HTH,
Neale.

Re: Kernel Memory Errors (Debian Woody 2.4.18-bf2.4)

[David Lloyd]

Neale,

> Probably an X issue that's not relevant here.
> 
> What's the video card?

It's an i810 Intel Card on an all-in-one mainly SiS based board...not
there until tomorrow when I can get more details about it.


DSL

-- 
Angel of Music, why deny me?
 Turning from true beauty!
Angel of music, do not shun me,
 Turn to your strange Angel!

Re: Kernel Memory Errors (Debian Woody 2.4.18-bf2.4)

[Alan Cox]

On Tue, 2002-11-12 at 11:06, David Lloyd wrote:
> 
> Neale,
> 
> > Probably an X issue that's not relevant here.
> > 
> > What's the video card?
> 
> It's an i810 Intel Card on an all-in-one mainly SiS based board...not
> there until tomorrow when I can get more details about it.

If it is an i810 using the onboard video make sure you are using XFree86
4.1/4.2 and the -fixed- (using pci_alloc_*) kernel module for it.
Otherwise you may well get weird happenings

Marcelo's current tree has the kernel stuff, supporting XFree 4.1/4.2,
but 4.2 is IMHO a lot better on i810 especially at 3D.