On 1-Aug-13, at 6:20 PM, Helge Deller wrote:
Hi Dave,
On 07/30/2013 12:46 AM, John David Anglin wrote:
The following kernel packages are now in the parisc-linux.org
archive:
linux-image-3.10-1-parisc-smp_3.10.3-1_hppa.deb
linux-image-3.10-1-parisc64-smp_3.10.3-1_hppa.deb
linux-image-3.10-1-parisc64_3.10.3-1_hppa.deb
linux-image-3.10-1-parisc_3.10.3-1_hppa.deb
That's fantastic!
This brings us one big step further to being able to build a real
debian-unstable-installer boot CD.
I'm still hoping the C8000 patches I pushed for inclusion into 3.11
will then
show up in stable 3.10 series soon as well. If that happens we will
have a kernel
which should boot on all machines - including the c8000.
I have bootstrap tested the linux-image-3.10-1-parisc64-
smp_3.10.3-1_hppa.deb package. We'll
have to see if 3.10 will be the Debian choice for the next release.
As I mentioned in private, I have found that flush_cache_all() is the
principal problem causing random
segmentation faults on SMP systems. Unfortunately, the only fix so
far is to not use flush_cache_all()
in flush_cache_mm() and flush_cache_range(), and this really slows
things down running GCC
testsuite. It doesn't seem to hurt much for other stuff.
My thought that this might be a timing issue didn't work. I tried
masking all external interrupts except for
IPI on all processors first, but it didn't help. It may be this can
be narrowed somewhat. I suspect that we
have an inconsistent cache state during fork.
I think if this issue is fixed, c8000's will be worth a bit more than
100 Euros...
Dave
--
John David Anglin dave.anglin@xxxxxxxx
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