From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: [patch 45/93] x86/amd_gart: print stacktrace for a leak with KERN_ERR Date: Mon, 08 Jun 2020 21:32:13 -0700 Message-ID: <20200609043213.Ov2lIaOay%akpm@linux-foundation.org> References: <20200608212922.5b7fa74ca3f4e2444441b7f9@linux-foundation.org> Reply-To: linux-kernel@vger.kernel.org Return-path: Received: from mail.kernel.org ([198.145.29.99]:55298 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725770AbgFIEcP (ORCPT ); Tue, 9 Jun 2020 00:32:15 -0400 In-Reply-To: <20200608212922.5b7fa74ca3f4e2444441b7f9@linux-foundation.org> Sender: mm-commits-owner@vger.kernel.org List-Id: mm-commits@vger.kernel.org To: akpm@linux-foundation.org, bp@alien8.de, dima@arista.com, hpa@zytor.com, linux-mm@kvack.org, mingo@redhat.com, mm-commits@vger.kernel.org, tglx@linutronix.de, torvalds@linux-foundation.org From: Dmitry Safonov Subject: x86/amd_gart: print stacktrace for a leak with KERN_ERR It's under CONFIG_IOMMU_LEAK option which is enabled by debug config. Likely the backtrace is worth to be seen - so aligning with log level of error message in iommu_full(). Link: http://lkml.kernel.org/r/20200418201944.482088-46-dima@arista.com Signed-off-by: Dmitry Safonov Cc: Borislav Petkov Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: Thomas Gleixner Signed-off-by: Andrew Morton --- arch/x86/kernel/amd_gart_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/x86/kernel/amd_gart_64.c~x86-amd_gart-print-stacktrace-for-a-leak-with-kern_err +++ a/arch/x86/kernel/amd_gart_64.c @@ -159,7 +159,7 @@ static void dump_leak(void) return; dump = 1; - show_stack(NULL, NULL); + show_stack_loglvl(NULL, NULL, KERN_ERR); debug_dma_dump_mappings(NULL); } #endif _