From: Michael Ellerman <patch-notifications@ellerman•id.au>
To: Jose Ricardo Ziviani <joserz@linux•vnet.ibm.com>,
linuxppc-dev@lists•ozlabs.org
Cc: benh@au1•ibm.com, david@gibson•dropbear.id.au
Subject: Re: [v3, 1/1] powerpc/pseries: Make RAS IRQ explicitly dependent on DLPAR WQ
Date: Thu, 11 Jan 2018 13:25:43 +1100 (AEDT) [thread overview]
Message-ID: <3zH8qq1SWkz9sRW@ozlabs.org> (raw)
In-Reply-To: <20180103211252.24615-2-joserz@linux.vnet.ibm.com>
On Wed, 2018-01-03 at 21:12:52 UTC, Jose Ricardo Ziviani wrote:
> The hotplug engine uses its own workqueue to handle IRQ requests, the
> problem is that such workqueue is initialized after init_ras_IRQ, which
> will cause a kernel panic if any hotplug interruption is issued in that
> period of time.
>
> This patch makes RAS IRQ registration explicitly dependent on DLPAR
> workqueue and adds a check to make sure that the workqueue is not
> initialized more than once.
>
> Reported-by: Min Deng <mdeng@redhat•com>
> Reported-by: Daniel Henrique Barboza <danielhb@linux•vnet.ibm.com>
> Tested-by: Jose Ricardo Ziviani <joserz@linux•vnet.ibm.com>
> Signed-off-by: Michael Ellerman <mpe@ellerman•id.au>
> Reviewed-by: David Gibson <david@gibson•dropbear.id.au>
Applied to powerpc fixes, thanks.
https://git.kernel.org/powerpc/c/e2d5915293ffdff977ddcfc12b817b
cheers
prev parent reply other threads:[~2018-01-11 2:25 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-03 21:12 [PATCH v3 0/1] Make RAS IRQ explicitly dependent on DLPAR workqueue Jose Ricardo Ziviani
2018-01-03 21:12 ` [PATCH v3 1/1] powerpc/pseries: Make RAS IRQ explicitly dependent on DLPAR WQ Jose Ricardo Ziviani
2018-01-04 0:48 ` David Gibson
2018-01-11 2:25 ` Michael Ellerman [this message]
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