2.4.3 SMP: nfs stale handle, fb dualhead hardlock, G400/450 misnaming

2.4.3 SMP: nfs stale handle, fb dualhead hardlock, G400/450 misnaming

[Elmer Joandi]

1. stale NFS file handle
	2.4.2-ac28 serving nfs3 from reiserfs
	2.4.3 being nfs3 client,
	nfs damn slow on 100Mbps p2p link.
	mounted nfs  with rsize=8192,wsize=8192
	nfs fast.
	soon got :
		bash-2.04$ls
		ls .: stale NFS file handle
	just about home directory it says so.

2. Hard lockup:
	G450, I set con2fb, switch consoles some times and there it comes.
	swithc between X and single console is OK.

3. seems that I have G450 and linux shows it as G400. 
	bash-2.04$ /sbin/lspci:
	01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400 AGP (rev 82)	
	/proc/pci:
	 VGA compatible controller: Matrox Graphics, Inc. MGA G400 AGP (rev 130).
	/sbin/lspci -n
	01:00.0 Class 0300: 102b:0525 (rev 82)
	
	at least when I finally, after a longlong braindamage, started
	using G450 stuff everywhere, it become more and more usable.
	for dual fb X it is stable and usable now.
	
	G400 drivers also work, but matroxset aint switching second head
	to monitor output, neither does anything else. It remains blank.

elmer.

Re: 2.4.3 SMP: nfs stale handle, fb dualhead hardlock, G400/450 misnaming

[Alan Cox]

> 1. stale NFS file handle
> 	2.4.2-ac28 serving nfs3 from reiserfs
> 	2.4.3 being nfs3 client,

You need additional patches for NFS serving from Reiserfs

> 3. seems that I have G450 and linux shows it as G400. 
> 	bash-2.04$ /sbin/lspci:
> 	01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400 AGP (rev 82)	

The G450 and G400 use the same PCI identity, and different subids. So that
is expected behaviour rather than a bug

Re: 2.4.3 SMP: nfs stale handle, fb dualhead hardlock, G400/450 misnaming

[Petr Vandrovec]

Elmer Joandi wrote:

> 2. Hard lockup:
>         G450, I set con2fb, switch consoles some times and there it comes.
>         swithc between X and single console is OK.

Did you boot with 'video=scrollback:0' ? You must ;-)
 
> 3. seems that I have G450 and linux shows it as G400.
>         bash-2.04$ /sbin/lspci:
>         01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400 AGP (rev 82)
>         /proc/pci:
>          VGA compatible controller: Matrox Graphics, Inc. MGA G400 AGP (rev 130).

rev < 128 => G400, rev >= 128 => G450. Ask Matrox why they did so stupid
thing.
 
>         G400 drivers also work, but matroxset aint switching second head
>         to monitor output, neither does anything else. It remains blank.

Secondary output on G400 is in monitor mode by default. Are you sure
that you
insmodded all needed modules to kernel? i2c-matrox, matroxfb_maven,
matroxfb_crtc2, ...
If you do not know which ones, just build everything into kernel - and
do not forget
about i2c bit-banging as documented in documentation...
								Petr Vandrovec
								vandrove@vc.cvut.cz