From: Heiko Carstens <heiko.carstens@de.ibm.com>
To: Prarit Bhargava <prarit@redhat.com>
Cc: linux-kernel@vger.kernel.org, Jessica Yu <jeyu@kernel.org>,
David Arcari <darcari@redhat.com>
Subject: Re: [PATCH v2] modules: Only return -EEXIST for modules that have finished loading
Date: Wed, 8 May 2019 12:56:28 +0200 [thread overview]
Message-ID: <20190508105628.GC4102@osiris> (raw)
In-Reply-To: <20190507145413.16297-1-prarit@redhat.com>
Hi Prarit,
On Tue, May 07, 2019 at 10:54:13AM -0400, Prarit Bhargava wrote:
> Heiko, it would still be good to get a test of this patch from you. I
> tested this here at Red Hat on some System Z machines. Without the
> modification made here in v2, the systems failed to boot ~10% of the time.
> After the modification I do not see any boot failures. I also was
> able to reproduce the boot issue with the acpi_cpufreq driver on a very
> large & fast x86 system which had closer to 100% failure rate without
> the changes in v2. After the modification in v2 the system has rebooted
> all weekend without any issues.
I gave it a try on a machine that failed quite reliably with your
first patch (the one that was in linux-next and caused problems on
s390) - it now comes up without any issues. Also a machine with 80
CPUs (+SMT2 -> 160 CPUs) comes up without problems.
So everything seems to work. Thanks!
next prev parent reply other threads:[~2019-05-08 10:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-07 14:54 [PATCH v2] modules: Only return -EEXIST for modules that have finished loading Prarit Bhargava
2019-05-08 10:56 ` Heiko Carstens [this message]
2019-05-09 13:53 ` Jessica Yu
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