Re: ext[23]/lilo/2.5.{68,69,70} -- blkdev_put() problem?

From: Christophe Saout (christophe@saout.de)
Date: Thu Jun 12 2003 - 06:12:23 EST


Am Don, 2003-06-12 um 12.54 schrieb Andrew Morton:

> Christophe Saout <christophe@saout.de> wrote:
> >
> > Am Don, 2003-06-12 um 02.29 schrieb Andrew Morton:
> >
> > > I'd be interested in seeing the contents of /proc/meminfo immediately after
> > > the lilo run, see if there's any dirty memory left around.
> >
> > Yes, one page. After running lilo, there are 4k diry, running sync
> > doesn't get it below 4k.
>
> That would tend to imply that a page got onto the wrong list. But if that
> were so, nothing would be able to write it.
>
> > Only flushb /dev/hda does (or waiting several minutes).
>
> What is flushb?

A program that does a flush ioctl on a block device:

open("/dev/hda", O_RDONLY) = 3
ioctl(3, BLKFLSBUF, 0) = 0

> I use `lilo ; reboot -f' about 1000 times a day, no probs. There's
> something different.
>
> Adam was doing strange things with an initrd and pivot_root. Are you doing
> anything unconventional?

I'm using an initrd (but no pivot_root) that initializes my LVM2 volumes
(using device-mapper).

/boot and / are on device-mapper devices.

> > BTW: I found out that now strace lilo freezes the machine...
>
> Works OK here. Try `strace strace lilo' ;)

I'll try to find out what happens. Not interested in crashing my system
while answering emails now. ;)

-- 
Christophe Saout <christophe@saout.de>

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