From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Borntraeger Date: Wed, 24 Jun 2020 15:54:46 +0000 Subject: Re: linux-next: umh: fix processed error when UMH_WAIT_PROC is used seems to break linux bridge on s Message-Id: <9e767819-9bbe-2181-521e-4d8ca28ca4f7@de.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit List-Id: References: <20200610154923.27510-5-mcgrof@kernel.org> <20200623141157.5409-1-borntraeger@de.ibm.com> <3118dc0d-a3af-9337-c897-2380062a8644@de.ibm.com> <20200624144311.GA5839@infradead.org> In-Reply-To: <20200624144311.GA5839@infradead.org> To: Christoph Hellwig Cc: mcgrof@kernel.org, ast@kernel.org, axboe@kernel.dk, bfields@fieldses.org, bridge@lists.linux-foundation.org, chainsaw@gentoo.org, christian.brauner@ubuntu.com, chuck.lever@oracle.com, davem@davemloft.net, dhowells@redhat.com, gregkh@linuxfoundation.org, jarkko.sakkinen@linux.intel.com, jmorris@namei.org, josh@joshtriplett.org, keescook@chromium.org, keyrings@vger.kernel.org, kuba@kernel.org, lars.ellenberg@linbit.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-security-module@vger.kernel.org, nikolay@cumulusnetworks.com, philipp.reisner@linbit.com, ravenexp@gmail.com, roopa@cumulusnetworks.com, serge@hallyn.com, slyfox@gentoo.org, viro@zeniv.linux.org.uk, yangtiezhu@loongson.cn, netdev@vger.kernel.org, markward@linux.ibm.com, linux-s390 On 24.06.20 16:43, Christoph Hellwig wrote: > On Wed, Jun 24, 2020 at 01:11:54PM +0200, Christian Borntraeger wrote: >> Does anyone have an idea why "umh: fix processed error when UMH_WAIT_PROC is used" breaks the >> linux-bridge on s390? > > Are we even sure this is s390 specific and doesn't happen on other > architectures with the same bridge setup? Fair point. AFAIK nobody has tested this yet on x86. 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Wed, 24 Jun 2020 15:54:54 +0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 05OFsp9P61079756 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 24 Jun 2020 15:54:51 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9DB7111C069; Wed, 24 Jun 2020 15:54:51 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D6AB811C05C; Wed, 24 Jun 2020 15:54:49 +0000 (GMT) Received: from oc7455500831.ibm.com (unknown [9.145.22.164]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 24 Jun 2020 15:54:49 +0000 (GMT) Subject: Re: linux-next: umh: fix processed error when UMH_WAIT_PROC is used seems to break linux bridge on s390x (bisected) To: Christoph Hellwig Cc: mcgrof@kernel.org, ast@kernel.org, axboe@kernel.dk, bfields@fieldses.org, bridge@lists.linux-foundation.org, chainsaw@gentoo.org, christian.brauner@ubuntu.com, chuck.lever@oracle.com, davem@davemloft.net, dhowells@redhat.com, gregkh@linuxfoundation.org, jarkko.sakkinen@linux.intel.com, jmorris@namei.org, josh@joshtriplett.org, keescook@chromium.org, keyrings@vger.kernel.org, kuba@kernel.org, lars.ellenberg@linbit.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-security-module@vger.kernel.org, nikolay@cumulusnetworks.com, philipp.reisner@linbit.com, ravenexp@gmail.com, roopa@cumulusnetworks.com, serge@hallyn.com, slyfox@gentoo.org, viro@zeniv.linux.org.uk, yangtiezhu@loongson.cn, netdev@vger.kernel.org, markward@linux.ibm.com, linux-s390 References: <20200610154923.27510-5-mcgrof@kernel.org> <20200623141157.5409-1-borntraeger@de.ibm.com> <3118dc0d-a3af-9337-c897-2380062a8644@de.ibm.com> <20200624144311.GA5839@infradead.org> From: Christian Borntraeger Autocrypt: addr=borntraeger@de.ibm.com; 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 MIME-Version: 1.0 In-Reply-To: <20200624144311.GA5839@infradead.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216,18.0.687 definitions=2020-06-24_08:2020-06-24,2020-06-24 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 spamscore=0 clxscore=1015 bulkscore=0 priorityscore=1501 cotscore=-2147483648 mlxscore=0 lowpriorityscore=0 suspectscore=0 adultscore=0 mlxlogscore=766 phishscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006240108 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 24.06.20 16:43, Christoph Hellwig wrote: > On Wed, Jun 24, 2020 at 01:11:54PM +0200, Christian Borntraeger wrote: >> Does anyone have an idea why "umh: fix processed error when UMH_WAIT_PROC is used" breaks the >> linux-bridge on s390? > > Are we even sure this is s390 specific and doesn't happen on other > architectures with the same bridge setup? Fair point. AFAIK nobody has tested this yet on x86. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: References: <20200610154923.27510-5-mcgrof@kernel.org> <20200623141157.5409-1-borntraeger@de.ibm.com> <3118dc0d-a3af-9337-c897-2380062a8644@de.ibm.com> <20200624144311.GA5839@infradead.org> From: Christian Borntraeger Message-ID: <9e767819-9bbe-2181-521e-4d8ca28ca4f7@de.ibm.com> MIME-Version: 1.0 In-Reply-To: <20200624144311.GA5839@infradead.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [Bridge] linux-next: umh: fix processed error when UMH_WAIT_PROC is used seems to break linux bridge on s390x (bisected) List-Id: Linux Ethernet Bridging List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Date: Wed, 24 Jun 2020 15:56:22 -0000 To: Christoph Hellwig Cc: ast@kernel.org, jarkko.sakkinen@linux.intel.com, philipp.reisner@linbit.com, dhowells@redhat.com, keyrings@vger.kernel.org, mcgrof@kernel.org, christian.brauner@ubuntu.com, yangtiezhu@loongson.cn, linux-s390 , bridge@lists.linux-foundation.org, jmorris@namei.org, kuba@kernel.org, serge@hallyn.com, keescook@chromium.org, nikolay@cumulusnetworks.com, roopa@cumulusnetworks.com, josh@joshtriplett.org, slyfox@gentoo.org, viro@zeniv.linux.org.uk, axboe@kernel.dk, bfields@fieldses.org, linux-nfs@vger.kernel.org, chainsaw@gentoo.org, ravenexp@gmail.com, gregkh@linuxfoundation.org, markward@linux.ibm.com, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, chuck.lever@oracle.com, netdev@vger.kernel.org, linux-fsdevel@vger.kernel.org, lars.ellenberg@linbit.com, davem@davemloft.net On 24.06.20 16:43, Christoph Hellwig wrote: > On Wed, Jun 24, 2020 at 01:11:54PM +0200, Christian Borntraeger wrote: >> Does anyone have an idea why "umh: fix processed error when UMH_WAIT_PROC is used" breaks the >> linux-bridge on s390? > > Are we even sure this is s390 specific and doesn't happen on other > architectures with the same bridge setup? Fair point. AFAIK nobody has tested this yet on x86.