From: v.narang@samsung.com (Vaneet Narang)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2] arm/stacktrace: stop unwinding after an invalid address.
Date: Tue, 03 Apr 2018 18:28:04 +0530 [thread overview]
Message-ID: <1166142499.594566.1522760284362.JavaMail.jboss@ep1ml501> (raw)
In-Reply-To: <1521630645-46715-1-git-send-email-maninder1.s@samsung.com>
?
Hi Russell,
>__dabt_usr+0x44/0x60
>0xb6748ea4
>^^^^^^^^
>--- a/arch/arm/kernel/stacktrace.c
>+++ b/arch/arm/kernel/stacktrace.c
>@@ -92,6 +92,9 @@ static int save_trace(struct stackframe *frame, void *d)
>
> regs = (struct pt_regs *)frame->sp;
>
>+ if (!__kernel_text_address(regs->ARM_pc))
>+ return 1;
>+
> trace->entries[trace->nr_entries++] = regs->ARM_pc;
?
Any Inputs or Comments on this patch to avoid storing user space entries
during unwind.
?
Regards,
Vaneet Narang
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prev parent reply other threads:[~2018-04-03 12:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20180321111139epcas5p4d5b75f4e1b572ae4e55aef737cd6d8e9@epcas5p4.samsung.com>
2018-03-21 11:10 ` [PATCH v2] arm/stacktrace: stop unwinding after an invalid address Maninder Singh
2018-04-03 12:58 ` Vaneet Narang [this message]
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