Commit e3d3683d authored Oct 22, 2007 by Michael Holzheu Committed by Martin Schwidefsky Oct 22, 2007

[S390] kernel: Fix dump on panic for DASDs under LPAR.



Currently the ccw method is used to ipl the DASD dump record under LPAR.
This mechanism is not reliable, which can cause dump failures. This fix
now uses the diag 308 ipl method for all machines, which have diag308
subcode 5 and 4 support.

Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent 7f021ce1

arch/s390/kernel/ipl.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -648,6 +648,8 @@ static int dump_set_type(enum dump_type type)
		case DUMP_TYPE_CCW:
		if (MACHINE_IS_VM)
		dump_method = DUMP_METHOD_CCW_VM;
		else if (diag308_set_works)
		dump_method = DUMP_METHOD_CCW_DIAG;
		else
		dump_method = DUMP_METHOD_CCW_CIO;
		break;

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