2.4.18-26 screen lockups and threading issues

Dave Johnson dave at wangtrading.com
Tue Mar 11 14:34:01 CST 2003

On a positive side, the kernel seems to noticeably speed things 
up on the machine (bootups are several seconds faster).  Network 
performance (and of course network stability) has increased.  We 
ran some tests on a small farm of machines and it successfully 
handled the load over the weekend.

Some concerns we have seen, which effects us rolling it out to 
production are:

1) On different Dell machines (1550s, 530s and 650s), we have 
   seen lockups that last for several seconds (keyboard caps 
   lock doesn't even register).  Most of these machines are 
   running X at the time (RedHat 7.3).  Not sure what is 
   causing this... ?  

2) Is there something changed in the kernel threading model
   for the default RH build for i686 and i686-smp of 2.4.18-26?
	- On machines with this kernel installed, GDB starts 
        seeing int32 on debugged apps, which didn't exist in 
        2.4.18-5smp.  From one of our developers here, even
        sleep() behaves differently.
3) The latest NVIDIA driver seems to not be 100% with -26.  Has
   anyone seen machine lockups with the NVIDIA display driver-4191.

Was wondering if anyone else has seen any of these issues... ?
We are about to open some bugs with RH...

Dave Johnson
dave at wangtrading.com

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