Aaron J. Grier | 17 Oct 23:39 2015

netbsd-7 on indy / challenge-s

before putting old systems down the ice flow, I figured I would give 'em
one last spin, but there still seem to be some lingering problems.

system was building the world when it hit.  I wonder if I've got bad cache or
memory -- I've seen errors from lzma in at least one nightly cron run, and
sshd bombed out the first time it tried to generate keys.

I thought these systems at least had parity?

pid 16999(cc1): trap: cpu0, TLB miss (load or instr. fetch) in kernel mode
status=0x2000f003, cause=0x508, epc=0x880849d4, vaddr=0xc21e0000
tf=0xc4c7fac0 ksp=0xc4c7fb60 ra=0x8808048c ppl=0xf
kernel: TLB miss (load or instr. fetch) trap
Stopped in pid 16999.1 (cc1) at netbsd:r4k_pdcache_wb_range_16+0x3c:    cache   0
x19,0x0(a0)
db> bt
0xc4c7fb60: r4k_pdcache_wb_range_16+3c (c21e0000,c21e1000,0,0) ra 8808048c sz 0
0xc4c7fb60: _bus_dmamap_sync_mips3+28c (c21e0000,c21e1000,0,0) ra 883aa1e4 sz 80

0xc4c7fbb0: wdsc_dmago+68 (c21e0000,c21e1000,0,0) ra 883a8614 sz 40
0xc4c7fbd8: wd33c93_nextstate+654 (c21e0000,c21e1000,0,0) ra 883a96c8 sz 48
0xc4c7fc08: wd33c93_intr+c8 (c21e0000,c21e1000,0,0) ra 883aa448 sz 56
0xc4c7fc40: wdsc_scsiintr+14 (c21e0000,c21e1000,0,0) ra 88146284 sz 24
0xc4c7fc58: int2_local0_intr+a0 (c21e0000,c21e1000,0,0) ra 880a55d4 sz 48
0xc4c7fc88: cpu_intr+150 (0,c21e1000,0,0) ra 88205988 sz 64
0xc4c7fcc8: mips3_kern_intr+c8 (0,0,0,88495c10) ra 88366490 sz 192
0xc4c7fd88: uvm_anon_dispose+13c (0,0,0,88495c10) ra 883664f8 sz 32
0xc4c7fda8: uvm_anon_freelst+38 (0,896878e0,0,88495c10) ra 883645f0 sz 32
0xc4c7fdc8: amap_wipeout+118 (0,896878e0,0,88495c10) ra 883716ec sz 32
0xc4c7fde8: uvm_unmap_detach+54 (0,896878e0,0,88495c10) ra 88374438 sz 40
(Continue reading)

Michael | 24 Sep 20:26 2015
Picon

Back from the dead, with updates!

Hello,

Some things that happened to the sgimips port recently:
- it's usable again, thanks to skrll <at>  fixing a bunch of cache handling bugs months ago
- we can run n32 kernels and userland on CPUs that support it
- sgimips' own, kinda dodgy bus_space and bus_dma have been replaced
  with common code from arch/mips
- as a result of the above, on O2 running an n32 kernel we can now
  access the whole PCI bus instead of just two 32MB windows. Tested
  with a voodoo3 which has two 32MB memory apertures.

That said, there is no reason not to use the whole RAM on machines with
more than 256MB, if necessary limit DMA to the KSEG*-accessible part,
just like I did on CI20. Unfortunately my O2 only has 256MB, so I can't
test this.

Here's the horrible proof:

Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
    2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 7.99.21 (O2_64) #19: Wed Sep 23 19:22:04 EDT 2015
        ml <at> blackbush:/home/build/obj_sgimips64/sys/arch/sgimips/compile/O2_64
total memory = 256 MB
(6848 KB reserved for ARCS)
avail memory = 240 MB
timecounter: Timecounters tick every 10.000 msec
(Continue reading)

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