Re: SMP SS10 freezes hard intermittently
Hello, all-
I apologize for taking so long to respond. I'm (hopefully) not nearly
the ungrateful bastard I seem to be...
On Tue, 13 Jun 2000, Anton Blanchard wrote:
> In-Reply-To: <Pine.GSO.4.04.10006122026570.3904-100000@edsel.bbn.com>; from
dbutts@genuity.com on Mon, Jun 12, 2000 at 08:53:49PM -0400
>
>
> > I've got an SS10 with two CPUs, running a 2.2.15 kernel with SMP
> > enabled. It locks up hard periodically, and won't respond to
> > stop-A, a break on the serial port, the three-fingered salute,
> > or, in fact, anything short of a power-cycle.
>
> When I was fixing sparc32 SMP in 2.2, I only had access to one cpu and
> machine type (viking supersparc on 4m/690). As such it tends to be stable :)
>
> ftoomsh# uptime
> 3:01am up 99 days, 13:59, 31 users, load average: 1.42, 1.38, 1.36
>
> ftoomsh# cat /proc/cpuinfo
> cpu : Texas Instruments, Inc. - SuperSparc 50
> fpu : SuperSparc on-chip FPU
> promlib : Version 3 Revision 2
> prom : 2.14
> type : sun4m
> ncpus probed : 4
> ncpus active : 4
> Cpu0Bogo : 49.86
> Cpu1Bogo : 49.97
> Cpu2Bogo : 49.97
> Cpu3Bogo : 49.97
> MMU type : TI Viking/MXCC
> contexts : 65536
> CPU0 : online
> CPU1 : online
> CPU2 : online
> CPU3 : online
FWIW,
cpu : Texas Instruments, Inc. - MicroSparc
fpu : SuperSparc on-chip FPU
promlib : Version 3 Revision 2
prom : 2.12
type : sun4m
ncpus probed : 2
ncpus active : 2
Cpu0Bogo : 39.83
Cpu1Bogo : 39.93
MMU type : TI Viking
invall : 0
invmm : 0
invrnge : 0
invpg : 0
contexts : 65536
CPU0 : online
CPU1 : online
> There are too many things to fix in 2.2 (that I am fixing in 2.4) so
> random lockups are no surprise to me. 2.4 should be ready for sparc32 real
> soon.
Does that mean I should rush out and grab myself some 2.4.0-test2
sources and try them out, or have your changes not been incorporated
yet?
Also, if it's possible to describe generally, what sort of problems
exist with the Sparc32 SMP code in 2.2?
Thanks (belatedly)-
David
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