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Harding" , linuxppc-dev@lists.ozlabs.org Subject: [PATCH 5/7] powerpc/traps: Print VMA for unhandled signals Date: Tue, 24 Jul 2018 16:27:18 -0300 X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180724192720.32417-1-muriloo@linux.ibm.com> References: <20180724192720.32417-1-muriloo@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 18072419-2213-0000-0000-000002CF6731 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00009424; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000266; SDB=6.01065574; UDB=6.00547380; IPR=6.00843431; MB=3.00022305; MTD=3.00000008; XFM=3.00000015; UTC=2018-07-24 19:28:13 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18072419-2214-0000-0000-00005AF3ACB8 Message-Id: <20180724192720.32417-6-muriloo@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-07-24_06:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=738 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1806210000 definitions=main-1807240204 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This adds VMA address in the message printed for unhandled signals, similarly to what other architectures, like x86, print. Before this patch, a page fault looked like: Jul 11 15:56:25 localhost kernel: pandafault[61470]: unhandled signal 11 at 00000000100007d0 nip 000000001000061c lr 00007fff8d185100 code 2 After this patch, a page fault looks like: Jul 11 16:04:11 localhost kernel: pandafault[6303]: unhandled signal 11 at 00000000100007d0 nip 000000001000061c lr 00007fff93c55100 code 2 in pandafault[10000000+10000] Signed-off-by: Murilo Opsfelder Araujo --- arch/powerpc/kernel/traps.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 047d980ac776..e6c43ef9fb50 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -315,9 +315,13 @@ static void show_signal_msg(int signr, struct pt_regs *regs, int code, return; pr_info("%s[%d]: unhandled signal %d at "REG_FMT \ - " nip "REG_FMT" lr "REG_FMT" code %x\n", + " nip "REG_FMT" lr "REG_FMT" code %x", current->comm, current->pid, signr, addr, regs->nip, regs->link, code); + + print_vma_addr(KERN_CONT " in ", regs->nip); + + pr_cont("\n"); } void _exception_pkey(int signr, struct pt_regs *regs, int code, -- 2.17.1