linux-kernel - 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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Message-ID: <20200624144311.GA5839@infradead.org>
Date:   Wed, 24 Jun 2020 15:43:11 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Christian Borntraeger <borntraeger@...ibm.com>
Cc:     mcgrof@...nel.org, ast@...nel.org, axboe@...nel.dk,
        bfields@...ldses.org, bridge@...ts.linux-foundation.org,
        chainsaw@...too.org, christian.brauner@...ntu.com,
        chuck.lever@...cle.com, davem@...emloft.net, dhowells@...hat.com,
        gregkh@...uxfoundation.org, jarkko.sakkinen@...ux.intel.com,
        jmorris@...ei.org, josh@...htriplett.org, keescook@...omium.org,
        keyrings@...r.kernel.org, kuba@...nel.org,
        lars.ellenberg@...bit.com, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-nfs@...r.kernel.org,
        linux-security-module@...r.kernel.org, nikolay@...ulusnetworks.com,
        philipp.reisner@...bit.com, ravenexp@...il.com,
        roopa@...ulusnetworks.com, serge@...lyn.com, slyfox@...too.org,
        viro@...iv.linux.org.uk, yangtiezhu@...ngson.cn,
        netdev@...r.kernel.org, markward@...ux.ibm.com,
        linux-s390 <linux-s390@...r.kernel.org>
Subject: Re: linux-next: umh: fix processed error when UMH_WAIT_PROC is used
 seems to break linux bridge on s390x (bisected)

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?