From: Alexander Lobakin <aleksander.lobakin@intel.com>
To: Chris Leech <cleech@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Nilesh Javali <njavali@marvell.com>,
Christoph Hellwig <hch@lst.de>,
John Meneghini <jmeneghi@redhat.com>,
Lee Duncan <lduncan@suse.com>,
Mike Christie <michael.christie@oracle.com>,
Hannes Reinecke <hare@kernel.org>, <netdev@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linux-scsi@vger.kernel.org>,
<GR-QLogic-Storage-Upstream@marvell.com>
Subject: Re: [PATCH v5 0/4] UIO_MEM_DMA_COHERENT for cnic/bnx2/bnx2x
Date: Mon, 5 Feb 2024 17:57:58 +0100 [thread overview]
Message-ID: <5228a235-69f4-4a9b-8142-96d9b4a5a1c8@intel.com> (raw)
In-Reply-To: <20240201233400.3394996-1-cleech@redhat.com>
From: Chris Leech <cleech@redhat.com>
Date: Thu, 1 Feb 2024 15:33:56 -0800
> During bnx2i iSCSI testing we ran into page refcounting issues in the
> uio mmaps exported from cnic to the iscsiuio process, and bisected back
> to the removal of the __GFP_COMP flag from dma_alloc_coherent calls.
IIRC Jakub mentioned some time ago that he doesn't want to see
third-party userspace <-> kernel space communication in the networking
drivers, to me this looks exactly like that :z
Thanks,
Olek
next prev parent reply other threads:[~2024-02-05 16:58 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-01 23:33 [PATCH v5 0/4] UIO_MEM_DMA_COHERENT for cnic/bnx2/bnx2x Chris Leech
2024-02-01 23:33 ` [PATCH v5 1/4] uio: introduce UIO_MEM_DMA_COHERENT type Chris Leech
2024-02-04 10:20 ` Simon Horman
2024-02-05 20:01 ` [PATCH v6 " Chris Leech
2024-02-12 6:56 ` Christoph Hellwig
2024-03-22 14:16 ` Guenter Roeck
2024-03-22 14:30 ` Greg Kroah-Hartman
2024-03-22 15:23 ` Guenter Roeck
2024-02-01 23:33 ` [PATCH v5 2/4] cnic,bnx2,bnx2x: use UIO_MEM_DMA_COHERENT Chris Leech
2024-02-02 19:08 ` Jakub Kicinski
2024-02-01 23:33 ` [PATCH v5 3/4] uio_pruss: UIO_MEM_DMA_COHERENT conversion Chris Leech
2024-02-01 23:34 ` [PATCH v5 4/4] uio_dmem_genirq: " Chris Leech
2024-02-04 10:19 ` Simon Horman
2024-02-05 19:53 ` Chris Leech
2024-02-05 20:02 ` [PATCH v6 " Chris Leech
2024-02-05 16:57 ` Alexander Lobakin [this message]
2024-02-05 19:51 ` [PATCH v5 0/4] UIO_MEM_DMA_COHERENT for cnic/bnx2/bnx2x Chris Leech
2024-02-06 15:54 ` Jakub Kicinski
2024-02-06 20:16 ` Lee Duncan
2024-02-21 18:28 ` Chris Leech
2024-02-28 18:20 ` Lee Duncan
2024-02-29 6:10 ` Greg Kroah-Hartman
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