Re: [coLinux-devel] Time freezes

[Evan D. <eda...@tj...>]

That's interesting - this seems to tie in with another bug I noticed.  I
normally ssh into colinux with PuTTY to get a nice terminal.  However,
after a period of time, it gets slow.  When I type a character, it doesn't
show up until the next one (i.e., I press a, and nothing happens.  I press
b, and the a shows up.  I press enter, and the b shows up.  I press c, and
it shows the return and "command ab not found" and a newline and prompt).
This seems to happen after a while (half hour or hour), but when I use
X apps, it happens almost immediately.  After seeing this, I noticed that
this does seem to happen about the same time date and top stop working
right.  Perhaps they are somehow related?

(I'm using the Valentine's day build on Windows XP home)

On Sun, 22 Feb 2004, Nir Perry wrote:

> Hello,
>
> I too saw nanosleep() hangs - trying to run "top" (according to "strace" and
> "gdb", the kernel function call never returns).
>
> /bin/sleep hangs too.
> /usr/bin/date keeps reporting the SAME frozen time...
>
> Guess the time just froze...
>
> It doesn't always freeze. Usually, everything work just fine. However,
> sometimes, some event causes the time to stop running (I think), and from
> that moment on - nothing time related works. Note that the scheduler keeps
> scheduling, and the kernel works fine - all but the time.
>
> I guess next stop is to debug the kernel...
>
> Nir
>
>
> -----Original Message-----
> From: Jason A. Pattie [mailto:pat...@pc...]
> Sent: Saturday, February 21, 2004 06:25
> To: John Milton
> Cc: coLinux-devel
> Subject: Re: [coLinux-devel] Applications hanging in nanosleep
>
>
> John Milton wrote:
>
> >I did an strace of dselect and dselect just stopped in a
> >one second call to nanosleep, which was easy to break out of.
> >
> >
>
> I noticed this happened when attempting to upgrade libc6.  It did made a
> call to 'init u' and then a 'sleep 1', and just hung there.  So I ended
> up mangling the script to comment that line out, finish the "upgrade",
> and then rebooted with the newer version of libc6 and init.
>
> >The same sort of thing happened in "/usr/bin/tset -s -m 'network:?xterm'"
> >
> >Perhaps there's some sort of race condition when sleeping for short
> intervals. Maybe there should be some logic in there to just
> >return if the requested interval happens to have already passed.
> >
> >I am running coLinux on W2K pro, on a PIII/600 laptop.
> >
> >
> Hmm.  Me too.  :)
>
>
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