I have been trying to bring my IXP425 based system up to date, and I
have found an apparent regression. Everything worked fine with ipipe
2.6.30 and Xenomai 2.4. With 2.6.31 an ipipe kernel still boots, but
starting with 2.6.33 the trouble begins (see below).
I see that Gilles refactored the TSC emulation starting with
2.6.33. I wonder whether this could be the cause?
I did not immediately see any obvious bug, but I don't fully
understand the newer TSC code. I would appreciate any hints.
Thanks,
Richard
** ipipe-2.6.31-arm-1.16-01
Seems to boot fine.
** ipipe-2.6.33-arm-1.18-01
Boots, but runs very slowly. FCSE on/off makes no difference.
After a few seconds, it seem to hand, but it might just be very
slow. Once I saw this on the console:
hrtimer: interrupt took 1414795601278721 ns
coming from kernel/hrtimer.c:1363
printk_once(KERN_WARNING "hrtimer: interrupt took %llu ns\n", ...)
** ipipe-2.6.35.9-arm-1.18-01
Does not boot with ipipe. FCSE on/off makes no difference.
It *does* boot without ipipe enabled.
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