Re: linux-next: umh: fix processed error when UMH_WAIT_PROC is used seems to break linux bridge on s390x (bisected)

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To: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Subject: Re: linux-next: umh: fix processed error when UMH_WAIT_PROC is used seems to break linux bridge on s390x (bisected)
From: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Date: Wed, 24 Jun 2020 17:54:46 +0200
Cc: ast@xxxxxxxxxx, jarkko.sakkinen@xxxxxxxxxxxxxxx, philipp.reisner@xxxxxxxxxx, dhowells@xxxxxxxxxx, keyrings@xxxxxxxxxxxxxxx, mcgrof@xxxxxxxxxx, christian.brauner@xxxxxxxxxx, yangtiezhu@xxxxxxxxxxx, linux-s390 <linux-s390@xxxxxxxxxxxxxxx>, bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx, jmorris@xxxxxxxxx, kuba@xxxxxxxxxx, serge@xxxxxxxxxx, keescook@xxxxxxxxxxxx, nikolay@xxxxxxxxxxxxxxxxxxx, roopa@xxxxxxxxxxxxxxxxxxx, josh@xxxxxxxxxxxxxxxx, slyfox@xxxxxxxxxx, viro@xxxxxxxxxxxxxxxxxx, axboe@xxxxxxxxx, bfields@xxxxxxxxxxxx, linux-nfs@xxxxxxxxxxxxxxx, chainsaw@xxxxxxxxxx, ravenexp@xxxxxxxxx, gregkh@xxxxxxxxxxxxxxxxxxx, markward@xxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-security-module@xxxxxxxxxxxxxxx, chuck.lever@xxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, lars.ellenberg@xxxxxxxxxx, davem@xxxxxxxxxxxxx
In-reply-to: <20200624144311.GA5839@infradead.org>
References: <20200610154923.27510-5-mcgrof@kernel.org> <20200623141157.5409-1-borntraeger@de.ibm.com> <b7d658b9-606a-feb1-61f9-b58e3420d711@de.ibm.com> <3118dc0d-a3af-9337-c897-2380062a8644@de.ibm.com> <20200624144311.GA5839@infradead.org>
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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.

Follow-Ups:
- Re: linux-next: umh: fix processed error when UMH_WAIT_PROC is used seems to break linux bridge on s390x (bisected)
  - From: Luis Chamberlain

References:
- [PATCH 4/5] umh: fix processed error when UMH_WAIT_PROC is used
  - From: Luis R. Rodriguez
- linux-next: umh: fix processed error when UMH_WAIT_PROC is used seems to break linux bridge on s390x (bisected)
  - From: Christian Borntraeger
- Re: linux-next: umh: fix processed error when UMH_WAIT_PROC is used seems to break linux bridge on s390x (bisected)
  - From: Christian Borntraeger
- Re: linux-next: umh: fix processed error when UMH_WAIT_PROC is used seems to break linux bridge on s390x (bisected)
  - From: Christian Borntraeger
- Re: linux-next: umh: fix processed error when UMH_WAIT_PROC is used seems to break linux bridge on s390x (bisected)
  - From: Christoph Hellwig

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