Re: I/O flexpages / new mapping DB issue with overlapping ports

On Wednesday 07 June 2006 18:43, Espen Skoglund wrote:
> [Frank Mehnert]
>
> > Sorry for the delay. I just updated Pistachio from CVS including
> > your latest fixes. Same problem. Enabled VRT_MAP and VRT_MAPCTRL:
>
> [...]
>
> > Assertion isize > newsize failed in file
> > /home-sarge/fm3/src/afterburner/extern/pistachio/kernel/src/generic/vrt.c
> >c, line 346 (fn=f0303151)
>
> Don't think this is the latest version.  According to my sources the
> assertion should be on line 354.  The version I committed should have
> Id 1.8.2.1.  Might be that the checkin I did was not mirrored to the
> outside yet (happens every hour if I recall correctly).

Ok, next try with up-to-date CVS from this morning, using version 1.8.2.1
of vrt.c (my comments in brackets):

  [Requesting I/O flexpage port=0x0000 log2_size=0x10 from Sigma0]

io<f0352020>::map (fp=00004027 [00000000,16] base=00000000) to io<f0352040> 
(fp=00004020 [00000000,16])
Received I/O ports 0000-ffff

  [MR2 was 00004027 after IPC]

--- "enter_kdebug" ---
/mdb> dumpallio
00000000 table [objsize=256  radix=256  count=255] (f0363060)
  00000100 [1] port: 100, space: f0358000
   00000200 [1] port: 200, space: f0358000
   00000300 [1] port: 300, space: f0358000
   00000400 [1] port: 400, space: f0358000
     ...
   0000fd00 [1] port: fd00, space: f0358000
   0000fe00 [1] port: fe00, space: f0358000
   0000ff00 [1] port: ff00, space: f0358000

  [PROBLEM1: although we requested the whole I/O space from Sigma0 we did
   not receive any port below 0x100, right?]

> go

...

  [00800001 requests I/O flexpage port=0x0cfb log2_size=0x00 from root task]

ROOT: Sending ports 0cfb-0cfb to task #08
io<f0352040>::map (fp=0cfb0026 [00000cfb,0] base=00000cfb) to io<f0352060> 
(fp=00004020 [00000000,16])

  [00800001 requests I/O flexpage port=0x0cf8 log2_size=0x02 from root task]

ROOT: Sending ports 0cf8-0cfb to task #08
io<f0352040>::map (fp=0cf80826 [00000cf8,2] base=00000cf8) to io<f0352060> 
(fp=0
0004020 [00000000,16])
Assertion isize > newsize failed in 
file /home-sarge/fm3/src/afterburner/extern/
pistachio/kernel/src/generic/vrt.cc, line 354 (fn=f0303671)
--- "KD# assert" ---

  [This is PROBLEM2]

Please tell me if you need more information.

Frank
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