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From: Andreas Schwab <schwab@suse.de>
To: linux-riscv@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] riscv: use 16KB kernel stack on 64-bit
Date: Mon, 06 Jul 2020 14:32:26 +0200	[thread overview]
Message-ID: <mvmeepoddt1.fsf@suse.de> (raw)

With the current 8KB stack size there are frequent overflows in a 64-bit
configuration.

Signed-off-by: Andreas Schwab <schwab@suse.de>
---
 arch/riscv/include/asm/thread_info.h | 4 ++++
 1 file changed, 4 insertions(+)

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__
-- 
2.26.2


-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."

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WARNING: multiple messages have this Message-ID (diff)
From: Andreas Schwab <schwab@suse.de>
To: linux-riscv@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] riscv: use 16KB kernel stack on 64-bit
Date: Mon, 06 Jul 2020 14:32:26 +0200	[thread overview]
Message-ID: <mvmeepoddt1.fsf@suse.de> (raw)

With the current 8KB stack size there are frequent overflows in a 64-bit
configuration.

Signed-off-by: Andreas Schwab <schwab@suse.de>
---
 arch/riscv/include/asm/thread_info.h | 4 ++++
 1 file changed, 4 insertions(+)

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__
-- 
2.26.2


-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."

             reply	other threads:[~2020-07-06 12:32 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-06 12:32 Andreas Schwab [this message]
2020-07-06 12:32 ` [PATCH] riscv: use 16KB kernel stack on 64-bit Andreas Schwab
2020-07-06 13:32 ` Anup Patel
2020-07-06 13:32   ` Anup Patel
2020-07-07  8:16 ` Aurelien Jarno
2020-07-07  8:16   ` Aurelien Jarno
2020-07-08 14:56 ` Christoph Hellwig
2020-07-08 14:56   ` Christoph Hellwig

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