lkml.org 
[lkml]   [2021]   [Mar]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 5.11 083/104] parisc: Bump 64-bit IRQ stack size to 64 KB
    Date
    From: John David Anglin <dave.anglin@bell.net>

    [ 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: John David Anglin <dave.anglin@bell.net>
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    arch/parisc/kernel/irq.c | 4 ++++
    1 file changed, 4 insertions(+)

    diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
    index 49cd6d2caefb..1dfb439b0692 100644
    --- a/arch/parisc/kernel/irq.c
    +++ b/arch/parisc/kernel/irq.c
    @@ -373,7 +373,11 @@ 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)];
    --
    2.30.1


    \
     
     \ /
      Last update: 2021-03-05 13:39    [W:6.009 / U:0.012 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site