summaryrefslogtreecommitdiffstats
path: root/arch/s390/kernel
diff options
context:
space:
mode:
authorMichael Holzheu <holzheu@de.ibm.com>2007-10-22 12:52:43 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2007-10-22 12:52:48 +0200
commite3d3683d1402c1737687cb698451d545f57c32a7 (patch)
treefb1b461928663dbced17738beef0ecf874668d57 /arch/s390/kernel
parent7f021ce1957504cacc78896de857b90293badabc (diff)
[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>
Diffstat (limited to 'arch/s390/kernel')
-rw-r--r--arch/s390/kernel/ipl.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 66b51901c87..ce0856d3250 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -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;