Re: [osol-discuss] xenix?

2007-04-30 Thread Christoph Hellwig
On Mon, Apr 30, 2007 at 08:31:23PM +0200, Joerg Schilling wrote:
 Jim Bolin [EMAIL PROTECTED] wrote:
 
  does opensolaris allow a xenix drive to be mounted? I have an old xenix 
  drive that people want data off of and it won't boot anymore. I can't find 
  a xenix install set anywhere so am looking for another os that will allow 
  me to mount it. Linux won't do it as far as I can tell.
 
 What filesystem type is it?
 Sun did remove support for the old V7 filesystem many years ago.

Xenix is mostly a v7-style filesystems, but with a bunch of subtile changes.
The Linux sysv filesystem driver supports, I don't know about any other
opensource implementation that can deal with this filesystem type.

Unfortunately Linux doesn't deal with the Xenix/SCO divvy style partition
tables, so the only use the driver is are floppies.  I've managed to recover
data from Xenix drivers by searching the disk for the superblock magic
and the hacking an offset directly into the driver.
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Re: [osol-discuss] Re: Community participation

2007-02-01 Thread Christoph Hellwig
On Wed, Jan 31, 2007 at 09:09:20PM +0100, [EMAIL PROTECTED] wrote:



 Oh, and when did kprobes and ReiserFS integrate?

In Opensolaris?  Not at all.  In Linux which is probably offtopic
here it's 2004 (kprobes) and 2001 (reiserfs).
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Re: Shipping lsof with Solaris ? / was: Re: [osol-discuss] problem with /tmp FS still up

2007-01-05 Thread Christoph Hellwig
On Fri, Jan 05, 2007 at 11:59:27AM +, Frank Hofmann wrote:
 On the other hand, the request for lsof in Solaris is anything but new, 
 and the reference to pfiles, the mentioning that lsof does nasty digging 
 in the kernel's intestines as a reply is neither, and the arguments that 
 the output format is different, the system load of pfiles is higher, lsof 
 is common operator knowledge, ... - all that isn't new either ...

Note that lsof doesn't have to do kmem craling.  For example on Linux
it only uses proper procfs interfaces.  As such proper interfaces seem
to exist on Solaris as well for use with pfiles it shouldn't be a problem
for people knowledgeable in this area to adjust lsof to do the right
thin on Solaris aswell.

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Re: [osol-discuss] Project proposal: support GCCfss and gcc 4 in ON

2006-07-24 Thread Christoph Hellwig
On Mon, Jul 24, 2006 at 09:11:23PM +0200, Rainer Orth wrote:
  New releases can be provided in distro, but kernel is alwasy based
  on some branch of some release branch. Currently they are 4.0s and 4.1s
 
 This may be for the same reasons as with Solaris: they may require specific
 changes that didn't make it into the GCC release, or bug fixes that weren't
 acceptable for GCC mainline.

The Linux kernel definitly does not require changes to release gcc versions.
It works with any gcc starting from gcc 3.2 up to the most recent released
version.  That the linux distributions ship gcc versions with local patches
has nothing to do with the linux kernel.  In fact if you look at the patches
you'll see that very few even touch the C frontend but most are in the
support for other languages or to the lesser extent the architecture backends.
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Re: [osol-discuss] Project proposal: support GCCfss and gcc 4 in ON

2006-07-24 Thread Christoph Hellwig
On Mon, Jul 24, 2006 at 12:52:43PM -0700, Alexey Starovoytov wrote:
 On Mon, 24 Jul 2006, Christoph Hellwig wrote:
 
  That is of course utter bullshit.  The Linux kernel doesn't require
  a specific gcc version.
 
 I didn't say it requires. I said shipped Linux kernel is always built with
 patched gcc. Please prove otherwise.

I'm just now building it with an unpatched gcc at this moment (and so do
probably various other people).  Does that count or do I need a sun certified
officially unpatched (TM) gcc for it?
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Re: [osol-discuss] Red Hat vs. Sun processor number war: 64:21 - RHwins!

2006-03-18 Thread Christoph Hellwig
On Sat, Mar 18, 2006 at 12:38:27PM +0100, Frank van der Linden wrote:
 But, touting the limit is kinda pointless if the current limit is well 
 below it.. I've never run NetBSD/amd64 on more than 4CPU/16G, and it 
 might blow up spectacularly when run on 32CPU hardware, should it become 
 available. The RH 64 limit is just marketing..

I don't know of an actual x86_64 system with 64 cpus, but the Unisys E7000
series is supported with up to 32 (single core) Cpus with both RedHat and
SuSE and works well (although not officially supported) with normal mainline
kernels.  As they probably plan using dual core Xeons that 64 Cpu will
probably be readched with real hardware soon.  On the ia64 side there's
hundreds of machines in the range from 64 to 128 in the field from sgi
that run normal SuSE or seldomly RedHat, and there are some 256 and 512
cpu machines with plain SLES9 in the field aswell.

So this isn't just marketing, machines of that size do become more or less
common these days.

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Re: [osol-discuss] mounted CDROMs and door locking

2005-11-21 Thread Christoph Hellwig
On Sun, Nov 20, 2005 at 03:42:52PM +0100, Joerg Schilling wrote:
 This practice is used since 1988 and before Microsoft and Linux did something
 else, nobody complained.

Linux doesn't allow to eject a CD in use.
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Re: [osol-discuss] mounted CDROMs and door locking

2005-11-21 Thread Christoph Hellwig
On Mon, Nov 21, 2005 at 07:36:25PM +0530, Moinak Ghosh wrote:
 This practice is used since 1988 and before Microsoft and Linux did 
 something
 else, nobody complained.

 
   It does. Just try a latest 2.6 kernel which has subfs. I works on 
 SuSE 9.3.

Then the suse folks patched your kernel.  Standard linux behaviour for
Linux is to lock the door on a cdrom once it's opened (from kernel or
userspace).
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Re: [osol-discuss] mounted CDROMs and door locking

2005-11-21 Thread Christoph Hellwig
On Mon, Nov 21, 2005 at 07:36:25PM +0530, Moinak Ghosh wrote:
   It does. Just try a latest 2.6 kernel which has subfs.

There's no subfs in a latest 2.6 kernel.  I looked up what subfs is,
and it's a stackable filesystem that is mounted to a mount pointed at
boot time, and then mounts an underlying filesystem on access + a daemon
that umounts it once it's unused again.  I don't see that it uses any
special care to unlock the door of a mounted cdrom, it just keeps it's
usage time down.  If you are really keen on this behaviour you could
write a similar filesystem for solaris or try to trick autofs into
this scenario.  In general I'd advice against it because it's a really
stupid idea.

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Re: [osol-discuss] Porting ReiserFS to Solaris?

2005-09-04 Thread Christoph Hellwig
You don't seem to have any expertise about linux filesystems, and what
you're writing is both totally offtopic here and completely wrong.

Please let this sub-thread die.

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