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 09:32:11 +0200 |
| commit | e558fc637c08cb192daad9edda0db6d3c47e2448 (patch) | |
| tree | b6da626fca6150dc5dfb532b11ec8c5ae53e1be2 /arch/riscv | |
| parent | eefcd11cc9cc75762a133ffe9d0709e87bc4871d (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 f8fa1cd2dad9..131f58b26b8f 100644 --- a/arch/riscv/include/asm/thread_info.h +++ b/arch/riscv/include/asm/thread_info.h @@ -20,7 +20,11 @@ #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__ |