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 taskqueue
thread
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
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
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
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.)
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 filesystem
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
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.
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 [mailto:[EMAIL
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
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
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, thus
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 complicated work, you'd
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
copying
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 the the
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 *no* error
* 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 name
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 barred
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 queue. However,
given
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