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Bug report - yours or mine?



Hi there:

As suggested in the docs, I am forwarding a bug report.

I have just converted two partitions to ext3 from ext2 without reformatting 
on my home box. All is not well, however. Here's the specs

AMD K6/2-3D 500 Mhz, 64MB SDRAM, 100 Mhz bus
Via Apollo P5MPV3 chipset, 100 Mhz bus
Opti Mad 16 931 soundcard
Video= AGP S3 Trio, w/8MB RAM, PS/2 mouse.
Realtek 8029 pci bus network card. Award BIOS
56K external modem on /dev/ttyS1. PS/2 mouse.
/dev/hda=2.5 Gig Maxtor 82560A4 drive(windoze 95) 
/dev/hdb=6.4 Gig Fujitsu MPC 3064AT Drive 
Unused usb ports.

[root genius /root]# hdparm /dev/hdb

/dev/hdb:
 multcount    =  2 (on)
 I/O support  =  1 (32-bit)
 unmaskirq    =  0 (off)
 using_dma    =  0 (off)
 keepsettings =  0 (off)
 nowerr       =  0 (off)
 readonly     =  0 (off)
 readahead    =  8 (on)
 geometry     = 784/255/63, sectors = 12594960, start = 0


I have 2 large partitions on /dev/hdb for linux which are now ext3. Before 
the conversion, and still with a 2.4.3 kernel (not ext3 capable) 
hdparm -tT reutrns 37MB/sec & 10.5 MB/sec respectively; 
After converting as per the mini howto (Using defaults), and updating the 
kernel to 2.4.18,
hdparm -tT returns 37MB/sec and 6.5MB/sec. What's worse, in a console, I get 
this error repeated many times
invalidate: busy buffer
but in an X terminal, I don't see it at all, although the speeds are similar.

Is this dodgy hardware, kernel, or what? Where should I look for a fix? 
Please copy me direct - I'm not subscribed to this list yet - inbox blues. 
hdparm -d1 refuses to set dma

[root genius /root]# hdparm -d1 /dev/hdb

/dev/hdb:
 setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Operation not permitted
 using_dma    =  0 (off)

The system is Mandrake 8.0.

	Regards abd TIA,


	Declan Moriarty




Applied Researches - Ireland's Foremost Electronic Hardware Genius

	A Slightly Serious(TM) Company

Experience is like a comb, 
that Life gives you - AFTER all your hair has fallen out!





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