diff options
| author | Andreas Schwab <schwab@suse.de> | 2020-07-06 14:32:26 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-22 09:33:14 +0200 |
| commit | 9125d5762590bb99d65b0f3f1c37c0585a576e67 (patch) | |
| tree | b2ccc526ddd21ffbd36333de9d330491dc5f2f9a /arch/riscv | |
| parent | c28501385945f55444b4bc560e5827b6e45d6d16 (diff) | |
riscv: use 16KB kernel stack on 64-bit
commit 0cac21b02ba5f3095fd2dcc77c26a25a0b2432ed upstream.
With the current 8KB stack size there are frequent overflows in a 64-bit
configuration. We may split IRQ stacks off in the future, but this fixes a
number of issues right now.
Signed-off-by: Andreas Schwab <schwab@suse.de>
Reviewed-by: Anup Patel <anup@brainfault.org>
[Palmer: mention irqstack in the commit text]
Fixes: 7db91e57a0ac ("RISC-V: Task implementation")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/include/asm/thread_info.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/thread_info.h b/arch/riscv/include/asm/thread_info.h index 905372d7eeb8..3df9a82bdbfd 100644 --- a/arch/riscv/include/asm/thread_info.h +++ b/arch/riscv/include/asm/thread_info.h @@ -12,7 +12,11 @@ #include <linux/const.h> /* thread information allocation */ +#ifdef CONFIG_64BIT +#define THREAD_SIZE_ORDER (2) +#else #define THREAD_SIZE_ORDER (1) +#endif #define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) #ifndef __ASSEMBLY__ |