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| author |   Andreas Schwab <schwab@suse.de> | 2020-07-06 14:32:26 +0200 |
|---|---|---|
| committer |   Palmer Dabbelt <palmerdabbelt@google.com> | 2020-07-14 13:40:04 -0700 |
| commit | 0cac21b02ba5f3095fd2dcc77c26a25a0b2432ed (patch) | |
| tree | 389ff7b5b6ab36036c948127dec2722ce32aa334 | |
| parent | Linux 5.8-rc5 (diff) | |
| download | linux-dev-0cac21b02ba5f3095fd2dcc77c26a25a0b2432ed.tar.xz linux-dev-0cac21b02ba5f3095fd2dcc77c26a25a0b2432ed.zip | |
riscv: use 16KB kernel stack on 64-bit
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>
| -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 1dd12a0cbb2b..464a2bbc97ea 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__ |