Messages in this thread | | | From | Grzegorz Jaskiewicz <> | Subject | Re: Linux 2.5.71 - random console corruption | Date | Wed, 18 Jun 2003 12:56:24 +0100 |
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On Wednesday 18 of June 2003 02:50, Gerhard Mack wrote: > On Tue, 17 Jun 2003, James Simmons wrote: > > > > For userland<->kernel transactions we have the console_semaphore to > > > > protect us. It is also used for console_callback. The > > > > console_semaphore is not used internally to protect global variables > > > > :-( To do this properly would take quite a bit of work. > > > > > > It looks like all these globals need a lock -- they can race on SMP or > > > with kernel preemption. > > > > > > Is it really going to be that hard to wrap a lock around their access, > > > because I think this is going to bite SMP users. > > > > For things like fg_console and currcon it will be. Those variables are > > used everyway like mad. That is a whole lot of locks. I doubt this issue > > will be solved until 2.7.X. > > Interestingly enough it's not console switching that does it.. it's > scrolling also as I mentioned before it's not just with preempt enabled. > > I wonder if theres another problem somewhere? I've got simmilar problem with 2.5.72, sometimes keyboard stops to respond (in X windows). Mouse is usefull, all i have to do is restart Xwindows and everything is running well.
- -- Grzegorz Jaskiewicz K4 Labs -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux)
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