On Thu, Jul 24, 2014 at 10:43:51PM +0200, Richard PALO via illumos-discuss
wrote:
> Happy to have now a clone of our server board (supermicro H8SGL-F) for a
> workstation, naturally with latest optéron:
> >$ psrinfo -v -p 1
> >The physical processor has 12 virtual processors (0-11)
> > x86 (AuthenticAMD 600F20 family 21 model 2 step 0 clock 2300 MHz)
> > AMD Opteron(tm) Processor 6338P
>
> It is a 12 core processor and I notice the following new message:
Oh nice. Haven't seen one of those in a while.
> >drmach_acpi: [ID 779328 kern.warning] WARNING: drmach_init: number of
> >logical CPUs (12) in physical processor is not power of 2.
>
> not [yet] too familiar with dynamic reconfigure issues, is this [already] an
> issue or a rather a noop?
I'd say it's harmless and can probably fixed with a reasonable amount of
work. The assumption that logical CPUs come in powers of 2 has been
wrong for at least 5 years.
> >static int
> >drmach_init(void)
> >{
> > DRMACH_HANDLE hdl;
> > drmachid_t id;
> > uint_t bnum;
> >
> > if (MAX_BOARDS > SHRT_MAX) {
> > cmn_err(CE_WARN, "!drmach_init: system has too many (%d) "
> > "hotplug capable boards.", MAX_BOARDS);
> > return (ENXIO);
> > } else if (MAX_CMP_UNITS_PER_BOARD > 1) {
> > cmn_err(CE_WARN, "!drmach_init: DR doesn't support multiple "
> > "(%d) physical processors on one board.",
> > MAX_CMP_UNITS_PER_BOARD);
> > return (ENXIO);
> > } else if (MAX_CORES_PER_CMP & (MAX_CORES_PER_CMP - 1)) {
> > cmn_err(CE_WARN, "!drmach_init: number of logical CPUs (%d) in "
> > "physical processor is not power of 2.",
> > MAX_CORES_PER_CMP);
> > return (ENXIO);
> > } else if (MAX_CPU_UNITS_PER_BOARD > DEVSET_CPU_NUMBER ||
> > MAX_MEM_UNITS_PER_BOARD > DEVSET_MEM_NUMBER ||
> > MAX_IO_UNITS_PER_BOARD > DEVSET_IO_NUMBER) {
> > cmn_err(CE_WARN, "!drmach_init: system has more CPU/memory/IO "
> > "units than the DR driver can handle.");
> > return (ENXIO);
> > }
> >
> > rw_init(&drmach_cpr_rwlock, NULL, RW_DEFAULT, NULL);
> > drmach_cpr_cid = callb_add(drmach_cpr_callb, NULL,
> > CB_CL_CPR_PM, "drmach");
>
> It appears to simply turn off dynamic reconfiguration.
> Am I missing anything?
I doubt dynamic reconfiguration is useful on that machine anyway, so
maybe thats why nobody cared to fix it :)
Hans
--
%SYSTEM-F-ANARCHISM, The operating system has been overthrown
-------------------------------------------
illumos-discuss
Archives: https://www.listbox.com/member/archive/182180/=now
RSS Feed: https://www.listbox.com/member/archive/rss/182180/21175430-2e6923be
Modify Your Subscription:
https://www.listbox.com/member/?member_id=21175430&id_secret=21175430-6a77cda4
Powered by Listbox: http://www.listbox.com
