From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Vincent Whitchurch <vincent.whitchurch@axis.com>,
Russell King <rmk+kernel@armlinux.org.uk>,
Sasha Levin <sashal@kernel.org>,
linux@armlinux.org.uk, linux-arm-kernel@lists.infradead.org
Subject: [PATCH AUTOSEL 4.19 07/11] ARM: 9320/1: fix stack depot IRQ stack filter
Date: Tue, 7 Nov 2023 10:54:15 -0500 [thread overview]
Message-ID: <20231107155430.3768779-7-sashal@kernel.org> (raw)
In-Reply-To: <20231107155430.3768779-1-sashal@kernel.org>
From: Vincent Whitchurch <vincent.whitchurch@axis.com>
[ Upstream commit b0150014878c32197cfa66e3e2f79e57f66babc0 ]
Place IRQ handlers such as gic_handle_irq() in the irqentry section even
if FUNCTION_GRAPH_TRACER is not enabled. Without this, the stack
depot's filter_irq_stacks() does not correctly filter out IRQ stacks in
those configurations, which hampers deduplication and eventually leads
to "Stack depot reached limit capacity" splats with KASAN.
A similar fix was done for arm64 in commit f6794950f0e5ba37e3bbed
("arm64: set __exception_irq_entry with __irq_entry as a default").
Link: https://lore.kernel.org/r/20230803-arm-irqentry-v1-1-8aad8e260b1c@axis.com
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/include/asm/exception.h | 4 ----
1 file changed, 4 deletions(-)
diff --git a/arch/arm/include/asm/exception.h b/arch/arm/include/asm/exception.h
index 58e039a851af0..3c82975d46db3 100644
--- a/arch/arm/include/asm/exception.h
+++ b/arch/arm/include/asm/exception.h
@@ -10,10 +10,6 @@
#include <linux/interrupt.h>
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
#define __exception_irq_entry __irq_entry
-#else
-#define __exception_irq_entry
-#endif
#endif /* __ASM_ARM_EXCEPTION_H */
--
2.42.0
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WARNING: multiple messages have this Message-ID (diff)
From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Vincent Whitchurch <vincent.whitchurch@axis.com>,
Russell King <rmk+kernel@armlinux.org.uk>,
Sasha Levin <sashal@kernel.org>,
linux@armlinux.org.uk, linux-arm-kernel@lists.infradead.org
Subject: [PATCH AUTOSEL 4.19 07/11] ARM: 9320/1: fix stack depot IRQ stack filter
Date: Tue, 7 Nov 2023 10:54:15 -0500 [thread overview]
Message-ID: <20231107155430.3768779-7-sashal@kernel.org> (raw)
In-Reply-To: <20231107155430.3768779-1-sashal@kernel.org>
From: Vincent Whitchurch <vincent.whitchurch@axis.com>
[ Upstream commit b0150014878c32197cfa66e3e2f79e57f66babc0 ]
Place IRQ handlers such as gic_handle_irq() in the irqentry section even
if FUNCTION_GRAPH_TRACER is not enabled. Without this, the stack
depot's filter_irq_stacks() does not correctly filter out IRQ stacks in
those configurations, which hampers deduplication and eventually leads
to "Stack depot reached limit capacity" splats with KASAN.
A similar fix was done for arm64 in commit f6794950f0e5ba37e3bbed
("arm64: set __exception_irq_entry with __irq_entry as a default").
Link: https://lore.kernel.org/r/20230803-arm-irqentry-v1-1-8aad8e260b1c@axis.com
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/include/asm/exception.h | 4 ----
1 file changed, 4 deletions(-)
diff --git a/arch/arm/include/asm/exception.h b/arch/arm/include/asm/exception.h
index 58e039a851af0..3c82975d46db3 100644
--- a/arch/arm/include/asm/exception.h
+++ b/arch/arm/include/asm/exception.h
@@ -10,10 +10,6 @@
#include <linux/interrupt.h>
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
#define __exception_irq_entry __irq_entry
-#else
-#define __exception_irq_entry
-#endif
#endif /* __ASM_ARM_EXCEPTION_H */
--
2.42.0
next prev parent reply other threads:[~2023-11-07 15:55 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-07 15:54 [PATCH AUTOSEL 4.19 01/11] crypto: pcrypt - Fix hungtask for PADATA_RESET Sasha Levin
2023-11-07 15:54 ` [PATCH AUTOSEL 4.19 02/11] RDMA/hfi1: Use FIELD_GET() to extract Link Width Sasha Levin
2023-11-07 15:54 ` [PATCH AUTOSEL 4.19 03/11] fs/jfs: Add check for negative db_l2nbperpage Sasha Levin
2023-11-07 15:54 ` [PATCH AUTOSEL 4.19 04/11] fs/jfs: Add validity check for db_maxag and db_agpref Sasha Levin
2023-11-07 15:54 ` [PATCH AUTOSEL 4.19 05/11] jfs: fix array-index-out-of-bounds in dbFindLeaf Sasha Levin
2023-11-07 15:54 ` [PATCH AUTOSEL 4.19 06/11] jfs: fix array-index-out-of-bounds in diAlloc Sasha Levin
2023-11-07 15:54 ` Sasha Levin [this message]
2023-11-07 15:54 ` [PATCH AUTOSEL 4.19 07/11] ARM: 9320/1: fix stack depot IRQ stack filter Sasha Levin
2023-11-07 15:54 ` [PATCH AUTOSEL 4.19 08/11] ALSA: hda: Fix possible null-ptr-deref when assigning a stream Sasha Levin
2023-11-07 15:54 ` [PATCH AUTOSEL 4.19 09/11] atm: iphase: Do PCI error checks on own line Sasha Levin
2023-11-07 15:54 ` [PATCH AUTOSEL 4.19 10/11] scsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup() Sasha Levin
2023-11-07 15:54 ` [PATCH AUTOSEL 4.19 11/11] HID: Add quirk for Dell Pro Wireless Keyboard and Mouse KM5221W Sasha Levin
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