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Commit f14f8ef6 authored by John David Anglin's avatar John David Anglin Committed by Greg Kroah-Hartman
Browse files

parisc: Bump 64-bit IRQ stack size to 64 KB 



[ Upstream commit 31680c1d1595a59e17c14ec036b192a95f8e5f4a ]

Bump 64-bit IRQ stack size to 64 KB.

I had a kernel IRQ stack overflow on the mx3210 debian buildd machine.  This patch increases the
64-bit IRQ stack size to 64 KB.  The 64-bit stack size needs to be larger than the 32-bit stack
size since registers are twice as big.

Signed-off-by: default avatarJohn David Anglin <dave.anglin@bell.net>
Signed-off-by: default avatarHelge Deller <deller@gmx.de>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent c9ad9136

arch/parisc/kernel/irq.c

+4 −0
Original line number Diff line number Diff line
@@ -380,7 +380,11 @@ static inline int eirr_to_irq(unsigned long eirr) 
/*

 * IRQ STACK - used for irq handler

 */

#ifdef CONFIG_64BIT

#define IRQ_STACK_SIZE      (4096 << 4) /* 64k irq stack size */

#else

#define IRQ_STACK_SIZE      (4096 << 3) /* 32k irq stack size */

#endif



union irq_stack_union {

	unsigned long stack[IRQ_STACK_SIZE/sizeof(unsigned long)];