[IA64] kdump on INIT needs multi-nodes sync-up (v.2)

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The current implementation of kdump on INIT events would enter
kdump processing on DIE_INIT_MONARCH_ENTER and DIE_INIT_SLAVE_ENTER
events. Thus, the monarch cpu would go ahead and boot up the kdump

On SN shub2 systems, this out-of-sync situation causes some slave
cpus on different nodes to enter POD.

This patch moves kdump entry points to DIE_INIT_MONARCH_LEAVE and
DIE_INIT_SLAVE_LEAVE. It also sets kdump_in_progress variable in
the DIE_INIT_MONARCH_PROCESS event to not dump all active stack
traces to the console in the case of kdump.

I have tested this patch on an SN machine and a HP RX2600.

Signed-off-by: Jay Lan <jlan@sgi.com>
Acked-by: Zou Nan hai <nanhai.zou@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

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This commit is contained in:

Jay Lan 2007-04-03 17:53:42 -07:00 • committed by Tony Luck

parent ae67e498a5

commit 311f594dec

2 changed files with 19 additions and 7 deletions

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22

arch/ia64/kernel/crash.c

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4

arch/ia64/kernel/mca.c

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