Messages in this thread | | | Subject | 2.2.0-pre4 kills random processes at heavy disk(raid5) io | From | Markus Linnala <> | Date | 05 Jan 1999 21:24:28 +0200 |
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2.2.0-pre4 kills random processes at heavy disk(raid5) io. It is generally repeatable.
I'm very interested about any tips how to tune MM not to make this happen.
How to make it happen: - change bonnie to start at write intelligently stage - cd to your raid5 device - ./maage_bon -s 500 & ./maage_bon -s 500 and after couple of seconds:
Out of memory for maage_bon.
Out of memory for maage_bon.
or any other process including init. :(
$ cat /proc/meminfo total: used: free: shared: buffers: cached: Mem: 64897024 63221760 1675264 2801664 41943040 6111232 Swap: 133885952 3084288 130801664 MemTotal: 63376 kB MemFree: 1636 kB MemShared: 2736 kB Buffers: 40960 kB Cached: 5968 kB SwapTotal: 130748 kB SwapFree: 127736 kB
$ cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 5 model : 8 model name : AMD-K6(tm) 3D processor stepping : unknown cpu MHz : 300.688655 fdiv_bug : no hlt_bug : no sep_bug : no f00f_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr mce cx8 sep mmx 3dnow bogomips : 599.65
$ dmesg Linux version 2.2.0-pre4 (root@localhost) (gcc version 2.7.2.3) #2 Mon Jan 4 17:28:02 EET 1999 Detected 300688655 Hz processor. ide_setup: ide1=autotune ide_setup: ide2=autotune ide_setup: ide3=autotune Console: colour VGA+ 80x25 Calibrating delay loop... 599.65 BogoMIPS Memory: 63340k/65536k available (776k kernel code, 412k reserved, 972k data, 36k init) CPU: AMD AMD-K6(tm) 3D processor Checking 386/387 coupling... OK, FPU using exception 16 error reporting. Checking 'hlt' instruction... OK. POSIX conformance testing by UNIFIX PCI: PCI BIOS revision 2.10 entry at 0xfb210 PCI: Using configuration type 1 PCI: Probing PCI hardware PCI: 00:38 [1106/0586]: Work around ISA DMA hangs (00) Activating ISA DMA hang workarounds. Swansea University Computer Society NET3.039 for Linux 2.1 NET3: Unix domain sockets 0.16 for Linux NET3.038. Swansea University Computer Society TCP/IP for NET3.037 IP Protocols: ICMP, UDP, TCP, IGMP Initializing RT netlink socket Starting kswapd v 1.5 Serial driver version 4.27 with no serial options enabled ttyS00 at 0x03f8 (irq = 4) is a 16550A pty: 256 Unix98 ptys configured Real Time Clock Driver v1.09 VP_IDE: IDE controller on PCI bus 00 dev 39 VP_IDE: not 100% native mode: will probe irqs later ide0: BM-DMA at 0xc000-0xc007, BIOS settings: hda:DMA, hdb:DMA ide0: VIA Bus-Master (U)DMA Timing Config Success ide1: BM-DMA at 0xc008-0xc00f, BIOS settings: hdc:DMA, hdd:DMA ide1: VIA Bus-Master (U)DMA Timing Config Success AEC6210: IDE controller on PCI bus 00 dev 48 AEC6210: not 100% native mode: will probe irqs later AEC6210: ROM enabled at 0xe9000000 ide2: BM-DMA at 0xd800-0xd807, BIOS settings: hde:pio, hdf:pio ide3: BM-DMA at 0xd808-0xd80f, BIOS settings: hdg:pio, hdh:pio hda: FUJITSU MPC3032AT, ATA DISK drive hdb: IBM-DTTA-351350, ATA DISK drive hdc: IBM-DTTA-351350, ATA DISK drive hdd: IBM-DTTA-351350, ATA DISK drive hde: IBM-DTTA-351350, ATA DISK drive hdg: IBM-DTTA-351350, ATA DISK drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 ide1 at 0x170-0x177,0x376 on irq 15 ide2 at 0xc800-0xc807,0xcc02 on irq 10 ide3 at 0xd000-0xd007,0xd402 on irq 10 (shared with ide2) hda: FUJITSU MPC3032AT, 3093MB w/0kB Cache, CHS=785/128/63, UDMA hdb: IBM-DTTA-351350, 12897MB w/464kB Cache, CHS=26205/16/63, UDMA hdc: IBM-DTTA-351350, 12897MB w/464kB Cache, CHS=26205/16/63, UDMA hdd: IBM-DTTA-351350, 12897MB w/464kB Cache, CHS=26205/16/63, UDMA hde: IBM-DTTA-351350, 12897MB w/464kB Cache, CHS=26205/16/63, UDMA hdg: IBM-DTTA-351350, 12897MB w/464kB Cache, CHS=26205/16/63, UDMA Floppy drive(s): fd0 is 1.44M FDC 0 is a post-1991 82077 md driver 0.36.6 MAX_MD_DEV=4, MAX_REAL=8 raid5 personality registered Partition check: hda: hda1 hda2 < hda5 hda6 hda7 hda8 > hdb: hdb1 < hdb5 > hdc: hdc1 < hdc5 > hdd: hdd1 < hdd5 > hde: hde1 < hde5 > hdg: hdg1 < hdg5 > VFS: Mounted root (ext2 filesystem) readonly. Freeing unused kernel memory: 36k freed Adding Swap: 130748k swap-space (priority -1) ne.c:v1.10 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov) NE*000 ethercard probe at 0x220: 00 20 18 61 55 bf eth0: NE2000 found at 0x220, using IRQ 5. tty_io.c: process 319 (gpm) used obsolete /dev/cua0 - update software to use /de v/ttyS0 REGISTER_DEV hdb5 to md0 done REGISTER_DEV hdc5 to md0 done REGISTER_DEV hdd5 to md0 done REGISTER_DEV hde5 to md0 done REGISTER_DEV hdg5 to md0 done raid5: device 03:45 operational as raid disk 0 raid5: device 16:05 operational as raid disk 1 raid5: device 16:45 operational as raid disk 2 raid5: device 21:05 operational as raid disk 3 raid5: device 22:05 operational as raid disk 4 raid5: allocated 5306kB for 09:00 raid5: raid level 5 set 09:00 active with 5 out of 5 devices, algorithm 0 md: updating raid superblock on device 03:45, sb_offset == 13207168 md: updating raid superblock on device 16:05, sb_offset == 13207168 md: updating raid superblock on device 16:45, sb_offset == 13207168 md: updating raid superblock on device 21:05, sb_offset == 13207168 md: updating raid superblock on device 22:05, sb_offset == 13207168
$ config CONFIG_EXPERIMENTAL=y CONFIG_M586TSC=y CONFIG_X86_WP_WORKS_OK=y CONFIG_X86_INVLPG=y CONFIG_X86_BSWAP=y CONFIG_X86_POPAD_OK=y CONFIG_X86_TSC=y CONFIG_MODULES=y CONFIG_MODVERSIONS=y CONFIG_KMOD=y CONFIG_NET=y CONFIG_PCI=y CONFIG_PCI_GOANY=y CONFIG_PCI_BIOS=y CONFIG_PCI_DIRECT=y CONFIG_PCI_QUIRKS=y CONFIG_SYSVIPC=y CONFIG_SYSCTL=y CONFIG_BINFMT_AOUT=m CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=m CONFIG_BLK_DEV_FD=y CONFIG_BLK_DEV_IDE=y CONFIG_BLK_DEV_IDEDISK=y CONFIG_BLK_DEV_IDECD=m CONFIG_BLK_DEV_IDEPCI=y CONFIG_BLK_DEV_IDEDMA=y CONFIG_IDEDMA_AUTO=y CONFIG_BLK_DEV_VIA82C586=y CONFIG_IDE_CHIPSETS=y CONFIG_BLK_DEV_LOOP=m CONFIG_BLK_DEV_MD=y CONFIG_MD_LINEAR=m CONFIG_MD_STRIPED=m CONFIG_MD_MIRRORING=m CONFIG_MD_RAID5=y CONFIG_PARIDE_PARPORT=y CONFIG_PACKET=y CONFIG_NETLINK=y CONFIG_RTNETLINK=y CONFIG_NETLINK_DEV=y CONFIG_FIREWALL=y CONFIG_NET_ALIAS=y CONFIG_FILTER=y CONFIG_UNIX=y CONFIG_INET=y CONFIG_IP_MULTICAST=y CONFIG_IP_FIREWALL=y CONFIG_IP_FIREWALL_NETLINK=y CONFIG_NETLINK_DEV=y CONFIG_NET_IPIP=m CONFIG_NET_IPGRE=m CONFIG_IP_ALIAS=y CONFIG_SYN_COOKIES=y CONFIG_INET_RARP=m CONFIG_IP_NOSR=y CONFIG_SKB_LARGE=y CONFIG_NETDEVICES=y CONFIG_DUMMY=m CONFIG_NET_ETHERNET=y CONFIG_NET_VENDOR_3COM=y CONFIG_EL3=m CONFIG_VORTEX=m CONFIG_NET_ISA=y CONFIG_DEPCA=m CONFIG_NE2000=m CONFIG_VT=y CONFIG_VT_CONSOLE=y CONFIG_SERIAL=y CONFIG_UNIX98_PTYS=y CONFIG_UNIX98_PTY_COUNT=256 CONFIG_NVRAM=m CONFIG_RTC=y CONFIG_AUTOFS_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y CONFIG_PROC_FS=y CONFIG_DEVPTS_FS=y CONFIG_ROMFS_FS=m CONFIG_EXT2_FS=y CONFIG_CODA_FS=m CONFIG_NFS_FS=y CONFIG_SUNRPC=y CONFIG_LOCKD=y CONFIG_SMB_FS=m CONFIG_NLS=y CONFIG_NLS_CODEPAGE_437=m CONFIG_NLS_CODEPAGE_737=m CONFIG_NLS_CODEPAGE_775=m CONFIG_NLS_CODEPAGE_850=m CONFIG_NLS_CODEPAGE_852=m CONFIG_NLS_CODEPAGE_855=m CONFIG_NLS_CODEPAGE_857=m CONFIG_NLS_CODEPAGE_860=m CONFIG_NLS_CODEPAGE_861=m CONFIG_NLS_CODEPAGE_862=m CONFIG_NLS_CODEPAGE_863=m CONFIG_NLS_CODEPAGE_864=m CONFIG_NLS_CODEPAGE_865=m CONFIG_NLS_CODEPAGE_866=m CONFIG_NLS_CODEPAGE_869=m CONFIG_NLS_CODEPAGE_874=m CONFIG_NLS_ISO8859_1=m CONFIG_NLS_ISO8859_2=m CONFIG_NLS_ISO8859_3=m CONFIG_NLS_ISO8859_4=m CONFIG_NLS_ISO8859_5=m CONFIG_NLS_ISO8859_6=m CONFIG_NLS_ISO8859_7=m CONFIG_NLS_ISO8859_8=m CONFIG_NLS_ISO8859_9=m CONFIG_NLS_ISO8859_15=m CONFIG_NLS_KOI8_R=m CONFIG_VGA_CONSOLE=y CONFIG_VIDEO_SELECT=y CONFIG_MAGIC_SYSRQ=y
-- //Markus
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