Re: Bio & Biovec-1 increasing cache size, never freed during disk IO

matteo brancaleoni
2006-02-27T20:38:26Z

FYI, this problem on 2.6.14.7 does not happens at all...

anyone has any idea about?

Greetings, Matteo.

On 2/25/06, matteo brancaleoni <mbrancaleoni@gmail.com> wrote:
> Hi.
>
> I'm experiencing a problem with 2.6.15.4 / 2.6.16-rc4, noticed during
> high disk IO (copying a lot of data between 2 machines): the system
> memory get filled up, until the full swap is used and the system must
> be rebooted (or is unusable). Stopping the process does not free the
> memory, and happens not only copying via network, but also with a
> simple
> cp -a dirwithmanybigfiles testdir.
>
> The system is running on athlon64:
> Linux morgor 2.6.16-rc4 #2 SMP Sat Feb 25 19:55:36 CET 2006 x86_64
> x86_64 x86_64 GNU/Linux
> Same issue with 2.6.15.4
>
> The box has a single soft-raid1 device made by 2 sata disk on promise
> controller.
> Attached slabinfo dump and dmesg dump.
>
> Some system informations:
> * This is the modules list:
> Linux morgor 2.6.16-rc4 #2 SMP Sat Feb 25 19:55:36 CET 2006 x86_64
> x86_64 x86_64 GNU/Linux
> [root@morgor ~]# lsmod
> Module Size Used by
> ipv6 399008 18
> ppdev 42888 0
> autofs4 55560 1
> nfs 251224 2
> lockd 97424 2 nfs
> nfs_acl 37120 1 nfs
> sunrpc 191944 4 nfs,lockd,nfs_acl
> rfcomm 105376 0
> l2cap 92160 5 rfcomm
> bluetooth 117252 4 rfcomm,l2cap
> dm_mirror 54912 0
> dm_mod 90192 1 dm_mirror
> video 50952 0
> button 41120 0
> battery 43912 0
> ac 38920 0
> lp 48208 0
> parport_pc 63144 1
> parport 74636 3 ppdev,lp,parport_pc
> nvram 42888 0
> ohci1394 67272 0
> ehci_hcd 65160 0
> sg 69672 0
> ieee1394 392216 1 ohci1394
> uhci_hcd 65952 0
> snd_via82xx 63784 0
> gameport 50832 1 snd_via82xx
> snd_ac97_codec 136536 1 snd_via82xx
> snd_ac97_bus 36224 1 snd_ac97_codec
> snd_seq_dummy 37508 0
> snd_seq_oss 66688 0
> snd_seq_midi_event 41472 1 snd_seq_oss
> snd_seq 90144 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
> snd_pcm_oss 85632 0
> snd_mixer_oss 51328 1 snd_pcm_oss
> snd_pcm 126728 3 snd_via82xx,snd_ac97_codec,snd_pcm_oss
> snd_timer 59656 2 snd_seq,snd_pcm
> snd_page_alloc 44816 2 snd_via82xx,snd_pcm
> snd_mpu401_uart 42112 1 snd_via82xx
> snd_rawmidi 61696 1 snd_mpu401_uart
> snd_seq_device 43280 4 snd_seq_dummy,snd_seq_oss,snd_seq,snd_rawmidi
> i2c_viapro 43160 0
> snd 97320 11
> snd_via82xx,snd_ac97_codec,snd_seq_oss,snd_seq,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device
> i2c_core 57728 1 i2c_viapro
> skge 72720 0
> soundcore 44576 1 snd
> raid1 54912 2
> ext3 163984 2
> jbd 93480 1 ext3
> sata_promise 45700 6
> sata_via 42500 0
> libata 93592 2 sata_promise,sata_via
> sd_mod 50688 8
> scsi_mod 180688 4 sg,sata_promise,libata,sd_mod
>
> * fstab
> [root@morgor ~]# cat /etc/fstab
> /dev/md1 / ext3 defaults 1 1
> /dev/md0 /boot ext3 defaults 1 2
> devpts /dev/pts devpts gid=5,mode=620 0 0
> tmpfs /dev/shm tmpfs defaults 0 0
> proc /proc proc defaults 0 0
> sysfs /sys sysfs defaults 0 0
> LABEL=SWAP-sda2 swap swap defaults 0 0
> LABEL=SWAP-sdb2 swap swap defaults 0 0
>
> * cpuinfo
> [root@morgor ~]# cat /proc/cpuinfo
> processor : 0
> vendor_id : AuthenticAMD
> cpu family : 15
> model : 47
> model name : AMD Athlon(tm) 64 Processor 3200+
> stepping : 0
> cpu MHz : 1800.000
> cache size : 512 KB
> fpu : yes
> fpu_exception : yes
> cpuid level : 1
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
> mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext
> fxsr_opt lm 3dnowext 3dnow pni lahf_lm
> bogomips : 3613.48
> TLB size : 1024 4K pages
> clflush size : 64
> cache_alignment : 64
> address sizes : 40 bits physical, 48 bits virtual
> power management: ts fid vid ttp tm stc
>
> Thanks a lot,
>
> Matteo Brancaleoni
>
>
>