Mailinglist Archive: opensuse (2731 mails)
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Re: [SLE] Cannot determine why my 8.1 box keeps hanging.
- From: "Carlos E. R." <robin1.listas@xxxxxxxxxx>
- Date: Sat, 16 Aug 2003 12:58:35 +0200 (CEST)
- Message-id: <Pine.LNX.4.53.0308161236560.5116@xxxxxxxxxxxxxxxx>
The 03.08.15 at 20:14, GarUlbricht7@xxxxxxxxxxxx wrote:
> I was aware of the 8.1 kernel problem, and the first thing I did when
> I installed 8.1 was upgrade my kernel.
> However I did not know of "barrier=none" option in fstab.
Well, if you updated the kernel patch from suse, you don't need the
barrier thing - actually, if you do it, mount will fail. They removed the
code, so trying to use it produce a parsing error. It is a way of making
sure if you have got the patched kernel or not.
By the way, the patched kernel may have problems with nvidia cards:
very very slow 3D - at least in my case.
> I now see it is is hinted at in SuSE's support knowledge base:
> http://sdb.suse.de/en/sdb/html/81_update_kernel.html but not really
> explained how to do it.
True. From their point of view the patch solved it, I guess; the fstab
thing was never really documented - not for the average user :-)
The only doc I ever saw was this email, on this list - I'l paste it, it is
short and old:
|Date: 2002.10.31 15:38
|From: Michael Hasenstein <mha@xxxxxxxx>
|See forwarded msg. below.
|-------- Original Message --------
|> He should try to mount his (hopefully) reiserfs partitions with option
|> barrier=none. A update kernel is in progress.
|The kernels in
|have the barrier feature removed. He should use one of them and report
|back if it solves the problem for him. We're still trying to verify that
|this is really the cause of the spontaneous freezes reported on some
I never saw any thing more explicit - probably it was comented on some
other more technical list, or internal docs, I don't know. I don't even
know what the code tried to do...
I once tried to understand how reiserfs works, but I couldn't, any way :-}
> I looked at "man fstab" and read Carlos'December post:
> I still have no clue.
Pity the archive has no body search - you'd found it. I just did on my
> Could someone please show how my fstab table would look if
> I put in a "barrier=none" option in it.
Ok, just for curiosity shake, here goes; I used:
/dev/hdb6 / reiserfs defaults,barrier=none 1 1
And it worked. If your kernel is patched, mount will fail: so try it first
on an auxiliary partition, not the root one.
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