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Subjectscheduling problems in X with 2.6.0
Hi all,

Ever since I moved to 2.6.0, I have been experiencing something I'd
like to call scheduling problems while working in X. I have tried
using preemptive mode, and turning it off, but the symptoms are the
same:

whenever there is continuous disk access (e.g. tar, rsync, dd),
X will not respond for a couple of seconds every couple of seconds.
With that I mean that the mouse will freeze as well as all screen
output, and then resume after a couple of seconds.

I wonder if I am the only one with that problem. The machine in
question is a dual AMD 2400+ with 2Gb of RAM and a Maxtor DiamondMax
drive spinning at 7200 RPM. The drive is configured as follows
(hdparm):

multcount = 16 (on)
IO_support = 1 (32-bit)
unmaskirq = 0 (off)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 256 (on)
geometry = 16383/255/63, sectors = 241254720, start = 0
Model=IC35L120AVV207-0, FwRev=V24OA63A, SerialNo=VNVD06G4C1NXZL
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=52
BuffType=DualPortCache, BuffSize=1821kB, MaxMultSect=16, MultSect=16
CurCHS=65535/1/63, CurSects=4128705, LBA=yes, LBAsects=241254720
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: ATA/ATAPI-6 T13 1410D revision 3a:

I would appreciate any pointers to the source of the problem, or
general hints!

--
martin; (greetings from the heart of the sun.)
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(note, however, that virgins tend to know a lot about computers.)
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