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[IA64] - Altix: hotplug after intr redirect can crash system

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When redirecting a device interrupt on SN, not all links
between platform specific structures are being updated.
This can result in a system crash if an interrupt
redirection is followed by an unplug of that device.

The complete fix also requires a prom update. Though,
this patch is backward compatable and not dependent on
the prom patch.

Signed-off-by: John Keller <[email protected]>
Signed-off-by: Tony Luck <[email protected]>
This commit is contained in:
John Keller 2007-05-02 09:09:18 -05:00 • committed by Tony Luck
commit 0e17b56098
2 changed files with 44 additions and 15 deletions
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1
include/asm-ia64/sn/sn_sal.h
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@ -106,6 +106,7 @@
/* interrupt handling */
#define SAL_INTR_ALLOC 1
#define SAL_INTR_FREE 2
#define SAL_INTR_REDIRECT 3
/*
* operations available on the generic SN_SAL_SYSCTL_OP