From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Sasha Levin <sashal@kernel.org>,
agordeev@linux.ibm.com, svens@linux.ibm.com,
ebiederm@xmission.com, iii@linux.ibm.com,
linux-s390@vger.kernel.org
Subject: [PATCH AUTOSEL 5.15 14/27] s390/traps: improve panic message for translation-specification exception
Date: Wed, 6 Apr 2022 21:12:44 -0400 [thread overview]
Message-ID: <20220407011257.114287-14-sashal@kernel.org> (raw)
In-Reply-To: <20220407011257.114287-1-sashal@kernel.org>
From: Heiko Carstens <hca@linux.ibm.com>
[ Upstream commit f09354ffd84eef3c88efa8ba6df05efe50cfd16a ]
There are many different types of translation exceptions but only a
translation-specification exception leads to a kernel panic since it
indicates corrupted page tables, which must never happen.
Improve the panic message so it is a bit more obvious what this is about.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/s390/kernel/traps.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index 12d28ff5281f..4044826d72ae 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -142,10 +142,10 @@ static inline void do_fp_trap(struct pt_regs *regs, __u32 fpc)
do_trap(regs, SIGFPE, si_code, "floating point exception");
}
-static void translation_exception(struct pt_regs *regs)
+static void translation_specification_exception(struct pt_regs *regs)
{
/* May never happen. */
- panic("Translation exception");
+ panic("Translation-Specification Exception");
}
static void illegal_op(struct pt_regs *regs)
@@ -374,7 +374,7 @@ static void (*pgm_check_table[128])(struct pt_regs *regs) = {
[0x0f] = hfp_divide_exception,
[0x10] = do_dat_exception,
[0x11] = do_dat_exception,
- [0x12] = translation_exception,
+ [0x12] = translation_specification_exception,
[0x13] = special_op_exception,
[0x14] = default_trap_handler,
[0x15] = operand_exception,
--
2.35.1
next prev parent reply other threads:[~2022-04-07 1:21 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-07 1:12 [PATCH AUTOSEL 5.15 01/27] gfs2: assign rgrp glock before compute_bitstructs Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 02/27] rtc: fix use-after-free on device removal Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 03/27] rtc: pcf2127: fix bug when reading alarm registers Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 04/27] um: Cleanup syscall_handler_t definition/cast, fix warning Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 05/27] um: port_user: Improve error handling when port-helper is not found Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 06/27] Input: add bounds checking to input_set_capability() Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 07/27] Input: stmfts - fix reference leak in stmfts_input_open Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 08/27] nvme-pci: add quirks for Samsung X5 SSDs Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 09/27] gfs2: Disable page faults during lockless buffered reads Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 10/27] rtc: sun6i: Fix time overflow handling Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 11/27] crypto: stm32 - fix reference leak in stm32_crc_remove Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 12/27] crypto: x86/chacha20 - Avoid spurious jumps to other functions Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 13/27] ALSA: hda/realtek: Enable headset mic on Lenovo P360 Sasha Levin
2022-04-07 1:12 ` Sasha Levin [this message]
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 15/27] s390/pci: improve zpci_dev reference counting Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 16/27] vhost_vdpa: don't setup irq offloading when irq_num < 0 Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 17/27] tools/virtio: compile with -pthread Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 18/27] nvmet: use a private workqueue instead of the system workqueue Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 19/27] nvme-multipath: fix hang when disk goes live over reconnect Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 20/27] rtc: mc146818-lib: Fix the AltCentury for AMD platforms Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 21/27] fs: fix an infinite loop in iomap_fiemap Sasha Levin
2022-04-07 11:28 ` Amir Goldstein
2022-04-07 11:30 ` Amir Goldstein
2022-05-17 17:33 ` Amir Goldstein
2022-05-18 12:24 ` Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 22/27] MIPS: lantiq: check the return value of kzalloc() Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 23/27] drbd: remove usage of list iterator variable after loop Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 24/27] platform/chrome: cros_ec_debugfs: detach log reader wq from devm Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 25/27] ARM: 9191/1: arm/stacktrace, kasan: Silence KASAN warnings in unwind_frame() Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 26/27] nilfs2: fix lockdep warnings in page operations for btree nodes Sasha Levin
2022-04-07 1:12 ` [PATCH AUTOSEL 5.15 27/27] nilfs2: fix lockdep warnings during disk space reclamation Sasha Levin
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