Re: Question about SysRq

2001-04-12 Thread Dr. Kelsey Hudson
On Wed, 4 Apr 2001, Boris Pisarcik wrote: > I looked a bit at the source of sysrq handling. I've found there is > rather big difference between sysrq+b and other killers handling. > Sysrq+b is just called with pretty straitforward fashion - stops other > processors on SMP and reboots directly (har

Re: Basic Text Mode (was: Re: Question about SysRq)

2001-04-03 Thread Boris Pisarcik
> It is a very good idea, and to implement quite easy. You just do have to > diff between three types of video cards (MDA, MGA and HGC vs. CGA and AGA vs. EGA+). > Then you do direct register writes. For the HGC I did it recently in a DOS proggy > which switched from text to gfx and back. I had a

Re: Question about SysRq

2001-04-03 Thread Boris Pisarcik
>You could even set sysvinit > to run it when you press a certain key combo. You mean inittab & kbrequest ? I didn't know about this. Must have a look at some documentation, manpage didn't help me a lot. Besides, you have very interesting name/domain, cheaf of bandits !!

Re: Basic Text Mode (was: Re: Question about SysRq)

2001-04-03 Thread Boris Pisarcik
Some stupid questions about videomem: 1) How do 2 or more X servers, or svgalibbed apps share the same physical video memory ? Does it get saved to ram when switching between them ? 2) Does console switching (gfx or text) save and restore all registers of videocard in kernel ? Or kernel only r

Re: Question about SysRq

2001-04-03 Thread Andreas Dilger
You write: > Can you anyhow find something in your logs/console/serial console messages > like 13.13.2000 kernel : Sysrq: Emergency Sync (this should be present - is > written within keyboard handler, not after shedule) and what's next logs ? > We could determine, if the bdflush thread got schedu

Re: Question about SysRq

2001-04-03 Thread Boris Pisarcik
Unfortunately, > the only one that responds is sysrq-b, which boots the box without > syncing or unmounting the disks. Not only does that piss me off but it's > led to some fs corruption as well (which pisses me off even more). sysrq-b > is the *only* combination I can get working when this happ

Re: Basic Text Mode (was: Re: Question about SysRq)

2001-04-02 Thread James Simmons
> One more property, that i'd like to have should be request key to force > the most basic text mode (say 80x25) on the console, when eg. X freezes > and i kill its session, then last gfx mode resides on the screen and > see no way to restore back the text mode - /usr/bin/reset or something > ali

Re: Question about SysRq

2001-04-02 Thread Dr. Kelsey Hudson
On Sat, 31 Mar 2001, Boris Pisarcik wrote: > on say tty2. The processes get created pretty fast. After a short while > I supposed a single solution to this to kill all session by alt+sysrq+k, > but nothing happened. Under normal averagely loaded situation, this will > imidiately kill all processes

Basic Text Mode (was: Re: Question about SysRq)

2001-04-02 Thread Thorsten Glaser Geuer
> Thought, i really love all sysrq properties of linux, so i need less often > to make hardware resets an then await and fear, what fsck will print. 101% ACK > One more property, that i'd like to have should be request key to force the > most basic text mode (say 80x25) on the console, when eg.