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

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[ Upstream commit 31680c1d15 ]

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: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
John David Anglin
2021-01-28 18:12:30 -05:00
committed by Greg Kroah-Hartman
parent 5883a3bb30
commit 25ceaadccb
1 changed files with 4 additions and 0 deletions
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4
arch/parisc/kernel/irq.c
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@@ -376,7 +376,11 @@ 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)];