Re: 2.6.16.32 stuck in generic_file_aio_write()

[Igmar Palsenberg]

> Does the other machine have the same problems?

It does. It seems to depend on the interrupt frequency : Setting KERNEL_HZ=250
makes it ony appear once a month or so, with KERNEL_HZ=1000, it will 
occur within a week. It does happen a lot less with the other machine, 
which isn't under disk activity load as much as the other machine.
 
> Are you able to rule out a hardware failure?

Well.. It's too much coincidence that 2 (almost identical) machines show 
the same weard behaviour. What strikes me that only *disk* interrupts 
after a while don't get handled. The machine itself is alive, just all 
disk IO is blocked, which makes it pretty much useless. 

Erich, could this be some sort of hardware problem ? I know it's a PITA to 
reproduce, but setting CONFIG_HZ to 1000 and bashing the machine with 
diskactivity seems to help :)


Regards,


	Igmar

-- 
Igmar Palsenberg
JDI ICT

Zutphensestraatweg 85
6953 CJ Dieren
Tel: +31 (0)313 - 496741
Fax: +31 (0)313 - 420996
The Netherlands

mailto: i.palsenberg@xxxxxxxxxx
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