From: Josh Poimboeuf <jpoimboe@redhat.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: kernel test robot <fengguang.wu@intel.com>, LKP <lkp@01.org>,
linux-soc@vger.kernel.org, linux-arm-msm@vger.kernel.org,
dma <dmaengine@vger.kernel.org>,
linux-samsung-soc@vger.kernel.org,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
USB list <linux-usb@vger.kernel.org>,
Vinod Koul <vinod.koul@intel.com>,
LKML <linux-kernel@vger.kernel.org>,
wfg@linux.intel.com
Subject: Re: 4879b7ae05 ("Merge tag 'dmaengine-4.12-rc1' of .."): WARNING: kernel stack regs at bd92bc2e in 01-cpu-hotplug:3811 has bad 'bp' value 000001be
Date: Mon, 2 Oct 2017 16:31:09 -0500 [thread overview]
Message-ID: <20171002213109.5n3skzy76edhwkvf@treble> (raw)
In-Reply-To: <20171002212654.rsm4uj3hfioddldd@treble>
On Mon, Oct 02, 2017 at 04:26:54PM -0500, Josh Poimboeuf wrote:
> Fengguang, assuming it's reliably recreatable, any chance you could
> recreate with the following patch?
Sorry, here's a version which actually compiles.
diff --git a/arch/x86/kernel/unwind_frame.c b/arch/x86/kernel/unwind_frame.c
index d145a0b1f529..00234fa5a33a 100644
--- a/arch/x86/kernel/unwind_frame.c
+++ b/arch/x86/kernel/unwind_frame.c
@@ -44,7 +44,8 @@ static void unwind_dump(struct unwind_state *state)
state->stack_info.type, state->stack_info.next_sp,
state->stack_mask, state->graph_idx);
- for (sp = state->orig_sp; sp; sp = PTR_ALIGN(stack_info.next_sp, sizeof(long))) {
+ for (sp = PTR_ALIGN(state->orig_sp, sizeof(long)); sp;
+ sp = PTR_ALIGN(stack_info.next_sp, sizeof(long))) {
if (get_stack_info(sp, state->task, &stack_info, &visit_mask))
break;
next prev parent reply other threads:[~2017-10-02 21:31 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-01 23:17 4879b7ae05 ("Merge tag 'dmaengine-4.12-rc1' of .."): WARNING: kernel stack regs at bd92bc2e in 01-cpu-hotplug:3811 has bad 'bp' value 000001be kernel test robot
2017-10-02 20:09 ` Linus Torvalds
[not found] ` <CA+55aFz_ijfUxyk2kdLhfzfS1z0_uRBw6eQb9UxFvh=5zOzzaw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-10-02 21:26 ` Josh Poimboeuf
2017-10-02 21:31 ` Josh Poimboeuf [this message]
2017-10-03 3:45 ` Fengguang Wu
2017-10-03 13:21 ` Josh Poimboeuf
2017-10-03 13:45 ` Fengguang Wu
2017-10-02 21:58 ` Linus Torvalds
2017-10-03 1:17 ` Josh Poimboeuf
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