Re: [PATCH/RFC] mpc83xx/85xx SysRQ/brk over 8250 console

2008-01-07 Thread Kumar Gala
On Jan 7, 2008, at 11:27 PM, Paul Gortmaker wrote: > It seems that if a break is rec'd on the serial console (as per SysRQ > or similar) on some 83xx and 85xx processors, then a pulse of IRQs is > generated which makes the use of SysRQ itself about 99% impossible. I > experimented with trying se

[PATCH/RFC] mpc83xx/85xx SysRQ/brk over 8250 console

2008-01-07 Thread Paul Gortmaker
It seems that if a break is rec'd on the serial console (as per SysRQ or similar) on some 83xx and 85xx processors, then a pulse of IRQs is generated which makes the use of SysRQ itself about 99% impossible. I experimented with trying several ACK strategies, but in the end the thing which worked b