Re: LOR g_xdown vs user map

From: Brian Fundakowski Feldman <green_at_freebsd.org>
Date: Sun, 10 Oct 2004 03:55:50 -0400
On Sat, Oct 09, 2004 at 04:51:43AM -0400, Ketrien I. Saihr-Kesenchedra wrote:
> Bjoern A. Zeeb wrote:
> 
> ><>On Fri, 8 Oct 2004, Ketrien I. Saihr-Kesenchedra wrote:
> >
> >Hi,
> >thanks for reporting. I have added it with LOR ID 041:
> >http://sources.zabbadoz.net/freebsd/lor.html#041
> >
> >I am Cc:ing current_at_ to let the others know about it
> 
> <supersnip>
> Yeah, I'm lazy, so I didn't do that. ;)
> There are other issues with amr(4) on the system currently, and scottl 
> is working on them AFAIK. This one is new as of today. System producing 
> it is a 4-way Opteron 848 with 8GB, running -CUR  sources from about 
> 1800 EDT Friday, with Brian Feldman's uma patch applied additionally. 
> ADAPTIVE_GIANT was enabled at the time, additionally. (Yes, you can 
> shoot me for forgetting that,) but I've been unable to reproduce reliably.
> And what the heck is triggering alltraps_with_regs_pushed()? I've never 
> seen that before on any systems.

Is it okay that amr(4) calls bus_dmamap_load(), doesn't check the return
value, then immediately calls bus_dmamap_sync() -- when the tags in use
were not allocated with BUS_DMAMEM_ALLOCNOW?

-- 
Brian Fundakowski Feldman                           \'[ FreeBSD ]''''''''''\
  <> green_at_FreeBSD.org                               \  The Power to Serve! \
 Opinions expressed are my own.                       \,,,,,,,,,,,,,,,,,,,,,,\
Received on Sun Oct 10 2004 - 05:55:54 UTC

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