From: wangkefeng.wang@huawei.com (Kefeng Wang)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] arm64: Call __show_regs directly
Date: Mon, 8 May 2017 21:56:54 +0800 [thread overview]
Message-ID: <1494251815-55961-1-git-send-email-wangkefeng.wang@huawei.com> (raw)
Call __show_regs directly in longjmp_break_handler() and
__do_user_fault(), it is to prepare for dump stack when
softlockup detected.
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
arch/arm64/kernel/probes/kprobes.c | 4 ++--
arch/arm64/mm/fault.c | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/kernel/probes/kprobes.c b/arch/arm64/kernel/probes/kprobes.c
index c5c4594..d849d98 100644
--- a/arch/arm64/kernel/probes/kprobes.c
+++ b/arch/arm64/kernel/probes/kprobes.c
@@ -522,9 +522,9 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
pr_err("current sp %lx does not match saved sp %lx\n",
orig_sp, stack_addr);
pr_err("Saved registers for jprobe %p\n", jp);
- show_regs(saved_regs);
+ __show_regs(saved_regs);
pr_err("Current registers\n");
- show_regs(regs);
+ __show_regs(regs);
BUG();
}
unpause_graph_tracing();
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 37b95df..c3f2b10 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -250,7 +250,7 @@ static void __do_user_fault(struct task_struct *tsk, unsigned long addr,
tsk->comm, task_pid_nr(tsk), inf->name, sig,
addr, esr);
show_pte(tsk->mm, addr);
- show_regs(regs);
+ __show_regs(regs);
}
tsk->thread.fault_address = addr;
--
1.7.12.4
next reply other threads:[~2017-05-08 13:56 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-08 13:56 Kefeng Wang [this message]
2017-05-08 13:56 ` [PATCH 2/2] arm64: Add dump_backtrace() in show_regs Kefeng Wang
2017-05-08 15:04 ` Mark Rutland
2017-05-09 1:23 ` Kefeng Wang
2017-05-08 14:55 ` [PATCH 1/2] arm64: Call __show_regs directly Mark Rutland
2017-05-09 1:53 ` [PATCH v2 " Kefeng Wang
2017-05-09 1:53 ` [PATCH v2 2/2] arm64: Add dump_backtrace() in show_regs Kefeng Wang
2017-05-24 10:09 ` Mark Rutland
2017-05-25 10:58 ` Will Deacon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1494251815-55961-1-git-send-email-wangkefeng.wang@huawei.com \
--to=wangkefeng.wang@huawei.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).