Martin Schwidefsky 85ac7ca597 [S390] outstanding interrupts vs. smp_send_stop ... The panic function will first print the panic message to the console, then stop additional cpus with smp_send_stop and finally call the function on the panic notifier list. In case of an I/O based console the panic message will cause I/O to be started and a function on the panic notifier list will wait for the completion of the I/O. That does not work if an I/O completion interrupt has already been delivered to a cpu that is then stopped by smp_send_stop. To break this cyclic dependency add code to smp_send_stop that gives the additional cpu the opportunity to complete outstanding interrupts. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		2011-12-27 11:27:13 +01:00
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asm	[S390] outstanding interrupts vs. smp_send_stop	2011-12-27 11:27:13 +01:00