Messages in this thread | | | Date | Sun, 26 Oct 2003 13:55:05 +0100 | From | Stef van der Made <> | Subject | Heavy disk activity without apperant reason (added more info) |
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On my AMD athlon system with 512MB memory I sometimes get a lot of disk activity the activity normaly lasts for about 10 seconds and after that the disk stays relativily quiet as expected with the load on the system. When I look into top I don't see any programs that could explain the disk activity. The system is in most cases not using any swap.
The system configuration is as following.
Software Slackware 8.0 glibc 2.3.1 gcc 3.3.1 kernel 2.6.0-test9 all the needed software updates to run 2.5 and 2.6 kernels
AMD athlon 1400 512MB main mem 18GB scsi disk 10K 29160 adaptec scsi controller using a via kt2666 chipset
Disk setup
bash-2.05$ cat /etc/fstab /dev/sda1 / ext2 defaults 1 1 /dev/sda6 /squid reiserfs defaults 1 1 /dev/sda5 /home reiserfs defaults 1 1 /dev/sda7 none swap defaults 0 0 /dev/sda8 /usr reiserfs defaults 1 1 none /dev/pts devpts gid=5,mode=620 0 0 none /proc proc defaults 0 0 none /proc/bus/usb usbfs defaults 0 0 /dev/hda5 /music ext2 defaults 1 1
dmesg
bash-2.05# dmesg Linux version 2.6.0-test9 (root@made0120) (gcc version 3.3.2) #18 Sat Oct 25 23:05:26 CEST 2003 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000001fff0000 (usable) BIOS-e820: 000000001fff0000 - 000000001fff3000 (ACPI NVS) BIOS-e820: 000000001fff3000 - 0000000020000000 (ACPI data) BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved) BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved) 511MB LOWMEM available. On node 0 totalpages: 131056 DMA zone: 4096 pages, LIFO batch:1 Normal zone: 126960 pages, LIFO batch:16 HighMem zone: 0 pages, LIFO batch:1 DMI 2.2 present. Building zonelist for node : 0 Kernel command line: BOOT_IMAGE=Linux ro root=801 Initializing CPU#0 PID hash table entries: 2048 (order 11: 16384 bytes) Detected 1402.029 MHz processor. Console: colour VGA+ 80x25 Memory: 514988k/524224k available (2153k kernel code, 8488k reserved, 635k data, 344k init, 0k highmem) Calibrating delay loop... 2760.70 BogoMIPS Dentry cache hash table entries: 65536 (order: 6, 262144 bytes) Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) Mount-cache hash table entries: 512 (order: 0, 4096 bytes) CPU: After generic identify, caps: 0183fbff c1c7fbff 00000000 00000000 CPU: After vendor identify, caps: 0183fbff c1c7fbff 00000000 00000000 CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 256K (64 bytes/line) CPU: After all inits, caps: 0183fbff c1c7fbff 00000000 00000020 Intel machine check architecture supported. Intel machine check reporting enabled on CPU#0. CPU: AMD Athlon(tm) processor stepping 04 Enabling fast FPU save and restore... done. Checking 'hlt' instruction... OK. POSIX conformance testing by UNIFIX NET: Registered protocol family 16 PCI: PCI BIOS revision 2.10 entry at 0xfb470, last bus=1 PCI: Using configuration type 1 mtrr: v2.0 (20020519) Linux Plug and Play Support v0.97 (c) Adam Belay SCSI subsystem initialized PCI: Probing PCI hardware PCI: Probing PCI hardware (bus 00) PCI: Using IRQ router default [1106/3099] at 0000:00:00.0 Machine check exception polling timer started. apm: BIOS version 1.2 Flags 0x07 (Driver version 1.16ac) pty: 256 Unix98 ptys configured Linux agpgart interface v0.100 (c) Dave Jones agpgart: Detected VIA KT266/KY266x/KT333 chipset agpgart: Maximum main memory to use for agp memory: 439M agpgart: AGP aperture is 64M @ 0xe8000000 [drm] Initialized radeon 1.9.0 20020828 on minor 0 Serial: 8250/16550 driver $Revision: 1.90 $ 8 ports, IRQ sharing disabled ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A 8139too Fast Ethernet driver 0.9.26 eth0: RealTek RTL8139 at 0xe0816000, 00:e0:4c:3b:5d:84, IRQ 5 eth0: Identified 8139 chip type 'RTL-8139C' Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: IDE controller at PCI slot 0000:00:11.1 VP_IDE: chipset revision 6 VP_IDE: not 100% native mode: will probe irqs later ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: VIA vt8235 (rev 00) IDE UDMA133 controller on pci0000:00:11.1 ide0: BM-DMA at 0xec00-0xec07, BIOS settings: hda:DMA, hdb:DMA ide1: BM-DMA at 0xec08-0xec0f, BIOS settings: hdc:pio, hdd:DMA hda: WDC WD205BA, ATA DISK drive hdb: AOpen 12xDVD-ROM DRIVE 10172000, ATAPI CD/DVD-ROM drive Using anticipatory io scheduler ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 hdd: OnStream DI-30, ATAPI TAPE drive ide1 at 0x170-0x177,0x376 on irq 15 hda: max request size: 128KiB hda: 40088160 sectors (20525 MB) w/2048KiB Cache, CHS=39770/16/63, UDMA(66) hda: hda1 hda4 < hda5 hda6 > hdb: ATAPI DVD-ROM drive, 512kB Cache, UDMA(33) Uniform CD-ROM driver Revision: 3.12 ide-tape: hdd <-> ht0: OnStream DI-30 rev 1.09 ide-tape: hdd <-> ht0: Tape length 14429MB (19239 frames/track, 24 tracks = 461736 blocks, density: 64Kbpi) ide-tape: hdd <-> ht0: 990KBps, 64*32kB buffer, 10208kB pipeline, 62ms tDSC, DMAscsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.35 <Adaptec 29160 Ultra160 SCSI adapter> aic7892: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs (scsi0:A:0): 40.000MB/s transfers (20.000MHz, offset 63, 16bit) Vendor: QUANTUM Model: ATLAS_V_18_WLS Rev: 0230 Type: Direct-Access ANSI SCSI revision: 03 scsi0:A:0:0: Tagged Queuing enabled. Depth 32 SCSI device sda: 35861388 512-byte hdwr sectors (18361 MB) SCSI device sda: drive cache: write back sda: sda1 sda2 < sda5 sda6 sda7 sda8 > Attached scsi disk sda at scsi0, channel 0, id 0, lun 0 Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0, type 0 mice: PS/2 mouse device common for all mice input: PS2++ Logitech Mouse on isa0060/serio1 serio: i8042 AUX port at 0x60,0x64 irq 12 input: AT Translated Set 2 keyboard on isa0060/serio0 serio: i8042 KBD port at 0x60,0x64 irq 1 Advanced Linux Sound Architecture Driver Version 0.9.7 (Thu Sep 25 19:16:36 2003 UTC). request_module: failed /sbin/modprobe -- snd-card-0. error = -16 ALSA device list: #0: Sound Blaster Live! (rev.8) at 0xd800, irq 11 NET: Registered protocol family 2 IP: routing cache hash table of 4096 buckets, 32Kbytes TCP: Hash tables configured (established 32768 bind 65536) NET: Registered protocol family 1 NET: Registered protocol family 17 VFS: Mounted root (ext2 filesystem) readonly. Freeing unused kernel memory: 344k freed Adding 136512k swap on /dev/sda7. Priority:-1 extents:1 warning: process `update' used the obsolete bdflush system call Fix your initscripts? found reiserfs format "3.6" with standard journal Reiserfs journal params: device sda6, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 reiserfs: checking transaction log (sda6) for (sda6) reiserfs: replayed 8 transactions in 0 seconds Using r5 hash to sort names found reiserfs format "3.6" with standard journal Reiserfs journal params: device sda5, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 reiserfs: checking transaction log (sda5) for (sda5) reiserfs: replayed 12 transactions in 1 seconds Using r5 hash to sort names found reiserfs format "3.6" with standard journal Reiserfs journal params: device sda8, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 reiserfs: checking transaction log (sda8) for (sda8) reiserfs: replayed 7 transactions in 1 seconds Using r5 hash to sort names eth0: link up, 100Mbps, half-duplex, lpa 0x40A1
I'm not sure if I should log a bug and what the problem area could be.
Thanks in advance for helping out,
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