atomic(9) states:
The current set of atomic operations do not necessarily guarantee atomic-
ity across multiple processors. ... On the i386 architecture, the cache
coherency model requires that the hardware perform this task, thus the
atomic operations are atomic across multiple processors.
--- kamal kc <[EMAIL PROTECTED]> wrote:
> >
> > Queue a task to a taskqueue. Behind the scenes
> that
> > will invoke a swi_add if
> > you use the taskqueue_swi queue. However, given
> > that you want to do some
> > rather complicated work, you'd be better off
> > creating a dedicated taskq
My notebooks' hard disk, a Hitachi Travelstar 80 GB starts to develop read
errors. I have FreeBSD and Win XP on that disk. Although FreeBSD ist still
working , the errors in the Windows partition are causing Windows do ask for a
filesystem check nearly everytime I reboot the computer. One time th
On Thu, Jan 12, 2006 at 10:48:38AM +0100 I heard the voice of
Christoph Kukulies, and lo! it spake thus:
>
> dd if=/dev/ad2 of=/dev/ad3 conv=noerror
Give it a bigger blocksize (say, bs=1m or so) and it'll go a **LOT**
faster.
> My motherboard is an ASUS P4S8X with an on board promise controller
Christoph Kukulies wrote:
My notebooks' hard disk, a Hitachi Travelstar 80 GB starts to develop read
errors. I have FreeBSD and Win XP on that disk. Although FreeBSD ist still
working , the errors in the Windows partition are causing Windows do ask for a
filesystem check nearly everytime I rebo
Christoph Kukulies wrote:
Anyway, I decided to buy a second identical hard disk and tried to
block by block copy the old disk to the new one using
dd if=/dev/ad2 of=/dev/ad3 conv=noerror
The process is running now since yesterday evening and it is at 53 MB
at a transfer rate of about 1.1 MB/s.
> My notebooks' hard disk, a Hitachi Travelstar 80 GB starts to
> develop read errors.
Since you are using a modern disk, you should check your smart counters. I
know how to do it on NetBSD, and I believe the command is also available on
FreeBSD. First, you have to turn on the smart (S.M.A.R.T.) s
In the last episode (Jan 12), Christoph Kukulies said:
> My notebooks' hard disk, a Hitachi Travelstar 80 GB starts to develop
> read errors. I have FreeBSD and Win XP on that disk. Although FreeBSD
> ist still working , the errors in the Windows partition are causing
> Windows do ask for a filesys
> In the last episode (Jan 12), Christoph Kukulies said:
> > My notebooks' hard disk, a Hitachi Travelstar 80 GB starts to develop
> > read errors. I have FreeBSD and Win XP on that disk. Although FreeBSD
> > ist still working , the errors in the Windows partition are causing
> > Windows do ask for
Bakul Shah wrote:
In the last episode (Jan 12), Christoph Kukulies said:
dd if=/dev/ad2 conv=noerror,sync bs=64k | dd of=/dev/ad3 bs=64k
So now on the new disk he has files with random blocks of
zeroes and *no* error indication of which files are so
trashed. This is asking for trouble. Si
On Thu, Jan 12, 2006 at 12:00:31PM +, [EMAIL PROTECTED] wrote:
> Date: Wed, 11 Jan 2006 10:32:16 -0800
> From: "Darren Pilgrim" <[EMAIL PROTECTED]>
> Subject: RE: Ricoh PCI to SD device?
> To: "'M. Warner Losh'" <[EMAIL PROTECTED]>
> Cc: freebsd-hackers@freebsd.org
>
> From: M. Warner Losh [ma
> Bakul Shah wrote:
> >>In the last episode (Jan 12), Christoph Kukulies said:
>
> >>dd if=/dev/ad2 conv=noerror,sync bs=64k | dd of=/dev/ad3 bs=64k
> >
> >
> > So now on the new disk he has files with random blocks of
> > zeroes and *no* error indication of which files are so
> > trashed. This
Bakul Shah wrote:
Bakul Shah wrote:
In the last episode (Jan 12), Christoph Kukulies said:
dd if=/dev/ad2 conv=noerror,sync bs=64k | dd of=/dev/ad3 bs=64k
So now on the new disk he has files with random blocks of
zeroes and *no* error indication of which files are so
tr
> I think after the dd is done, fsck should be run against the affected
> filesystems, which should take care of most of the issues.
For metadata yes, but not for normal file data. He wouldn't even know
what got trashed.
> The OP's question was how to make dd faster, not really how to get the
On Thursday 12 January 2006 03:52 am, Peter Jeremy wrote:
> atomic(9) states:
> The current set of atomic operations do not necessarily guarantee atomic-
> ity across multiple processors. ... On the i386 architecture, the cache
> coherency model requires that the hardware perform this task, th
On Thursday 12 January 2006 06:19 am, kamal kc wrote:
> --- kamal kc <[EMAIL PROTECTED]> wrote:
> > > Queue a task to a taskqueue. Behind the scenes
> >
> > that
> >
> > > will invoke a swi_add if
> > > you use the taskqueue_swi queue. However, given
> > > that you want to do some
> > > rather co
On Thu, 2006-Jan-12 10:48:38 +0100, Christoph Kukulies wrote:
>dd if=/dev/ad2 of=/dev/ad3 conv=noerror
>
>The process is running now since yesterday evening and it is at 53 MB
>at a transfer rate of about 1.1 MB/s.
>
>In case the the result being unusable I would like to find a way to make this
>co
Moin moin, wie geht's :-)
Christoph Kukulies wrote on Thu, Jan 12, 2006 at 10:48:38AM +0100:
>
> My notebooks' hard disk, a Hitachi Travelstar 80 GB starts to develop read
> errors. I have FreeBSD and Win XP on that disk. Although FreeBSD ist still
> working , the errors in the Windows partition
On Fri, Jan 13, 2006 at 08:13:00 +1100, Peter Jeremy wrote:
> On Thu, 2006-Jan-12 10:48:38 +0100, Christoph Kukulies wrote:
> >dd if=/dev/ad2 of=/dev/ad3 conv=noerror
> >
> >The process is running now since yesterday evening and it is at 53 MB
> >at a transfer rate of about 1.1 MB/s.
> >
> >In case
Ivan Voras wrote this message on Thu, Jan 12, 2006 at 18:48 +0100:
> Bakul Shah wrote:
> >>In the last episode (Jan 12), Christoph Kukulies said:
>
> >>dd if=/dev/ad2 conv=noerror,sync bs=64k | dd of=/dev/ad3 bs=64k
> >
> >
> >So now on the new disk he has files with random blocks of
> >zeroes and
* Peter Jeremy <[EMAIL PROTECTED]> [2006-01-13 08:13 +1100]:
> Note that whilst increasing the DD blocksize will speed up the
> transfer, it will also increase the amount of collateral damage when a
> hard error occurs. If you rummage around the ports or tools tree,
> you'll find a utility (its na
From: Clifton Royston
>
> If that NDA says some fairly typical things, and if the FreeBSD
> organization (or any individual developer) poneys up the money for the
> standard and signs the associated NDA, then either that developer or
> the FreeBSD group as a whole might then be permanently barre
Hi hackers,
I have a question about how priority propagation works on
read/write lock.On locks that have only one owner at a determinate
moment,we can simply propagate the priority to the owner of lock,but
read/write lock may have many owners at some time,so how can we know
who are the owners?
--- John Baldwin <[EMAIL PROTECTED]> wrote:
> On Thursday 12 January 2006 06:19 am, kamal kc
> wrote:
> > --- kamal kc <[EMAIL PROTECTED]> wrote:
> > > > Queue a task to a taskqueue. Behind the
> scenes
> > >
> > > that
> > >
> > > > will invoke a swi_add if
> > > > you use the taskqueue_swi qu
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