Re: regression: 100% io-wait with 2.6.24-rcX

[Fengguang Wu <wfg@mail.ustc.edu.cn>]

On Mon, Jan 07, 2008 at 02:40:13PM +0100, Joerg Platte wrote:
> Am Montag, 7. Januar 2008 schrieb Peter Zijlstra:
> > On Mon, 2008-01-07 at 14:24 +0100, Joerg Platte wrote:
> >
> > This is from: 2.6.24-rc7
> >
> > > kernel: pdflush       D f41c2f14     0 18822      2
> > > kernel:        f673f000 00000046 00000286 f41c2f14 f5194ce0 00000286
> > > 00000286 f41c2f14 kernel:        00175279 f41c2f6c 00000000 c0271f6c
> > > f5ff363c f5ff3644 c0354a90 c0354a90 kernel:        00175279 c0123251
> > > f5194b80 c03546c0 c0271f67 6c666470 00687375 00000000 kernel: Call Trace:
> > > kernel:  [<c0271f6c>] schedule_timeout+0x6e/0x8b
> > > kernel:  [<c0123251>] process_timeout+0x0/0x5
> > > kernel:  [<c0271f67>] schedule_timeout+0x69/0x8b
> > > kernel:  [<c027179a>] __sched_text_start+0x3a/0x70
> > > kernel:  [<c014d34b>] congestion_wait+0x4e/0x62
> > > kernel:  [<c012be2b>] autoremove_wake_function+0x0/0x33
> > > kernel:  [<c014971e>] pdflush+0x0/0x1bf
> > > kernel:  [<c01493c6>] wb_kupdate+0x8c/0xd1
> > > kernel:  [<c014971e>] pdflush+0x0/0x1bf
> > > kernel:  [<c0149839>] pdflush+0x11b/0x1bf
> > > kernel:  [<c014933a>] wb_kupdate+0x0/0xd1
> > > kernel:  [<c012bd71>] kthread+0x36/0x5d
> > > kernel:  [<c012bd3b>] kthread+0x0/0x5d
> > > kernel:  [<c010493b>] kernel_thread_helper+0x7/0x10
> > > kernel:  =======================
> >
> > What filesystem are you using?
> 
> Here you can see all currently mounted filesystems:
> 
> /dev/sda6 on / type ext3 (rw,noatime,errors=remount-ro,acl)
> tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
> proc on /proc type proc (rw,noexec,nosuid,nodev)
> sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
> procbususb on /proc/bus/usb type usbfs (rw)
> udev on /dev type tmpfs (rw,mode=0755)
> tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
> devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
> fusectl on /sys/fs/fuse/connections type fusectl (rw)
> /dev/sda7 on /tmp type ext2 (rw,noatime,errors=remount-ro,acl)
> /dev/sda8 on /export type ext3 (rw,noatime,errors=remount-ro,acl)
> /dev/sda1 on /winxp type ntfs (rw,umask=002,gid=10000,nls=utf8)

So they are ext3/ext2/ntfs.  What if you umount ntfs? and ext2 if possible?