regression: 100% io-wait with 2.6.24-rcX

Joerg Platte
2008-01-07T11:10:27Z

Hi,

when booting kernel 2.6.24-rc{4,5,6,7} top reports up to 100% iowait, even if
no program accesses the disc on my Thinkpad T40p. Kernel 2.6.23.12 does not
suffer from this. Is there anything I can do to find out which process or
which part of the kernel is responsible for this? I can try to bisect it, but
maybe there are other possibilities to debug this, since I cannot boot this
computer frequently. I discovered, that there is no iowait within the first
few seconds after waking up from suspend to ram...

regards,
Jörg