[lkml]   [2007]   [Feb]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: sparc64 / bbc_i2c.c
Hi Andrew

> The code around there looks relatively unbuggy to me. Removing that
> remove_wait_queue() would be very bad - it would cause later stack
> corruption.
> msleep_interruptible() certainly shouldn't consume CPU like that. Do we
> know where the CPU time is being spent? The output of:
> readprofile -r
> sleep 10
> readprofile -n -v -m /boot/ | sort -n -k 3 | tail -40
> would tell us.

As was mentioned in another reply, this message by
Joerg Friedrich

gives a possible explanantion of where the time is going.
I applied the patch to the debian kernel sources for 2.6.18,
it applied cleanly and fixed the problem.

I have the upatched kernel in /boot so I can run the tests
you mentioned fairly easily -- please let me know if you'd
still like me to do that.

J.J. Green, Dept. Applied Mathematics, Hicks Bld.,
University of Sheffield, UK. +44 (0114) 222 3742

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2007-02-26 01:01    [W:0.254 / U:28.992 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site