On Wed, 2002-09-18 at 13:22, Bryan Whitehead wrote: > Testing one of our 2GB Dual-Pentium III (1ghz) machines we get a hard > lock with kernel enterprise. > kernel-enterprise-2.4.19.9mdk-1-1mdk.i586.rpm > > The lock up seems to be related to the scsi driver. aic7xxx. The last > message that is echoed to the syslog consol is: > kernel: (scsi0:A:0:0): Locking max tag count at 64 > > after that the machine is dead. No ping, but keyboard works enough for > Alt-SysRq stuff. Only problem is Alt-SysRq keys won't work. :( syncing > the disk results in the machine "trying" (It starts to sync the disk) > but will never finish, there is no HD activity. Then the keyboard will > not respond anymore. > > Trying to get a process list, or memory stats will finish off the lock > also. (as in it will become so useless that reset button is only thing > working). > > If my first sysrq key is to reboot it will. > > I ran memtest yesterday and all memory is ok. Mandrake 8.1 has no > problems on this machine. > > Heavy disk activity triggers the lock, like installing an RPM. :) > > It will always hard lock when installing the "FlashPlayer-5.0-8mdk" RPM. > > any suggestions? or specific sysrq keys you'd like me to try in locked > up state? (there is no oops or anything like that on the consol window)
I have a dual-1GHz PIII Coppermine system with 2GB on a Supermicro Serverworks board and Adaptec 3200S that has this exact problem. Only with highmem/kernel-enterprise after 2.4.8. RPM will kill the box exactly as you've described. I've had to retrograde the box and stay away from current kernels. -- Brad Felmey
