Date: Wed, 7 Jan 2009 21:25:44 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/dev/dcons dcons_crom.c dcons_os.c Message-ID: <200901072126.n07LQ3eb080461@repoman.freebsd.org>
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marius 2009-01-07 21:25:44 UTC
FreeBSD src repository
Modified files:
sys/dev/dcons dcons_crom.c dcons_os.c
Log:
SVN rev 186876 on 2009-01-07 21:25:44Z by marius
Check the return values of contigmalloc(9) as well as bus_dma(9)
functions and stop attaching of dcons(4) and dcons_crom(4) if
they indicate failure. This fixes a panic seen on sparc64 machines
with no free physical memory in the requested 32-bit region but
still doesn't make dcons(4)/dcons_crom(4) these work. I think
the latter can be fixed by simply specifying ~0UL as the upper
limit for contigmalloc(9) and letting the bounce pages and the
IOMMU respectively handle limitations of the DMA engine. I didn't
want to change that without the consensus of simokawa@ though,
who unfortunately didn't reply so far.
MFC after: 1 week
Revision Changes Path
1.11 +12 -3 src/sys/dev/dcons/dcons_crom.c
1.25 +11 -7 src/sys/dev/dcons/dcons_os.c
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