lkml.org 
[lkml]   [1999]   [Sep]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [patch] stime/settimeofday/adjtimex SMP races (2.2.12 and 2.3.18ac5)
On Fri, Sep 17, 1999 at 04:41:17PM +0200, Andrea Arcangeli wrote:
> I reviewed the time-related stuff in 2.2.12 and I found potential SMP
> races in the time-related syscalls. Basically the only problem is that the
> time-syscalls are not protecting against each other. They are only
> protecting themself against the timer irq. And this may lead to SMP races.

This seems to have resulted in all set_rtc_mmss messages vanishing for
me. It's been a bit over a day so far, and usually it starts displaying
them by now. I'll give it another day and then try a reboot to see if
the processors deadlock, but for now, it looks good. Glad to see these
will be in 2.2.13 (I'm running 2.2.13pre9 w/ the SMP time spinlock
patch)

--
Ryan Murray (rmurray@cyberhqz.com, rmurray@glenayre.com)
Software Designer, Glenayre Technologies Inc.
The opinions expressed here are my own.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:54    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site