Mark Morgan Lloyd a écrit :
Aaro Koskinen wrote:
Hi,
On Thu, Sep 11, 2014 at 09:41:09PM +0200, BERTRAND Joël wrote:
BUT : for several months, Linux/Sparc64 is unfortunately not stable
anymore
(or completely broken). After 2.6.35 kernel, I can see random
deadlock on
all my sparc64 (sun4v _and_ sun4u). Now, I run NetBSD or Solaris 10. But
FreeBSD and OpenBSD run fine also.
I have Ultra 5 in active use. It used to suffer from random
hard lockups/hangs, but those issues disappeared with recent Linux
mainline kernels (I think after 3.12 or so).
I had a stack of Netras which I set up with Wheezy, can't remember the
kernel version. One or more would predictably lock up shortly after
06:30 GMT Sunday, I suspect this was connected with logrotate rollover.
I reverted to Lenny with a 2.6 kernel and they're rock-solid.
And I think you haven't tried to use Linux on sun4v. I have a stack of
Txxxx, and they randolmy crash. One of my T1000 cannot boot recent
kernel (after 2.6.30 as LSI SAS driver is particulary broken), but with
the _same_ hardware all other ones runs (not fine, but run) with 2.6.38.
3.x are broken and only boot with 1 thread (!). I haven't tested kernel
after 3.14.
I have sent patches to official linux/sparc64 maintainer without any
result on sparc32 and sparc64. I have done a lot of bug reports on sparc
kernel mailing list. I think linux is unfortunately dead on sparc,
sparc64, mips... In fact on all archs but i386, amd64 and arm.
Regards,
JKB
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