From: Dave Airlie <airlied@redhat.com>
To: Jerome Glisse <j.glisse@gmail.com>
Cc: dri-devel@lists.freedesktop.org
Subject: Re: GEM - radeon cs ioctl deadlock
Date: Thu, 14 Oct 2010 08:14:58 +1000 [thread overview]
Message-ID: <1287008098.4928.9.camel@clockmaker-el6> (raw)
In-Reply-To: <AANLkTimbZ8E7pWD3SnCs6vnnG3U93X7AmzrJVtRPVuEJ@mail.gmail.com>
On Wed, 2010-10-13 at 17:57 -0400, Jerome Glisse wrote:
> So we are facing a deadlock with the radeon cs ioctl. When a buffer is given
> a name (with flink) we could endup with 2 handle pointing to the same
> object (flink object and open it from same file descriptor). Would it be ok
> if i change gem open to first look if we already have an handle for the
> object and to use that handle instead of creating a new one ? Or could
> this break intel driver ?
I think r300g worked around this already, maybe we should just avoid
doing it from userspace if possible.
Dave.
next prev parent reply other threads:[~2010-10-13 22:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-13 21:57 GEM - radeon cs ioctl deadlock Jerome Glisse
2010-10-13 22:14 ` Dave Airlie [this message]
2010-10-14 1:47 ` Ben Skeggs
2010-10-18 15:16 ` Thomas Hellstrom
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