Re: 2.6.2-rc2-mm1 (Breakage?)

[Daniel Andersen <kernel-list@majorstua.net>]

> > > 	Hello, Andrew, I've switched from 2.6.2-rc1-mm1 to 2.6.2-rc1-mm1, and I've
> > > encountered this:
> > >
> > [snip]
> > 
> > Decided to build my first kernel with preempt since the early 2.5 days. I'm 
> > seeing the same warnings in 2.6.2-rc2-mm1.
> > 
> > gkrellm 0 waking gkrellm: 897 1485
> > Badness in try_to_wake_up at kernel/sched.c:722
> > Call Trace:
> >  [<c011a6a7>] try_to_wake_up+0x97/0x1d0
> >  [<c011b0b0>] __wake_up_common+0x30/0x60
> >  [<c011b109>] __wake_up+0x29/0x50
> >  [<c0131f1b>] wake_futex+0x2b/0x70
> >  [<c013259a>] do_futex+0x3fa/0x6e0
> >  [<c011d9d0>] copy_process+0x7b0/0x10a0
> >  [<c011e3a9>] do_fork+0xe9/0x179
> >  [<c011a142>] schedule+0x1d2/0x640
> >  [<c0132988>] sys_futex+0x108/0x130
> >  [<c03e1b9e>] sysenter_past_esp+0x43/0x65
> > 
> > Every five seconds. This is when it reads the sensor information from /sys, I 
> > think. And during boot, similar messages to those already reported (from 
> > kern.log this time).
> > 

As Zephaniah E. Hull suggested earlier, the message will disappear by reverting this patch:

ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.2-rc2/2.6.2-rc2-mm1/broken-out/futex-wakeup-debug.patch

Daniel Andersen