Re: BootX slowdown

Re: BootX slowdown

[Andrew B. Arthur]

Benjamin Herrenschmidt wrote:
>
> Please, could you do the following test:
>
>  - boot with BootX 1.2b3 in the exact same configuration that usually
> triggers the slowdown problem. You may eventually boot single user or
> even "init=/bin/sh" so that it doesn't take for ever to reach bash prompt.

Running on a PowerMacintosh 4400/200. BootX 1.2b3 and BootX 1.1.3
results listed below. Linux hagoleche.aarthur.bsdonline.org 2.2.14 #1
Sun Jan 16 02:39:35 EST 2000 ppc unknown


>  - cat /proc/interrupts and send me the result

Here is the /proc/interrupts and /proc/cpuinfo I saved from earlier
using BootX 1.2b3:

[AArthur@hagoleche AArthur]$ cat ~/interrupts.12b3
           CPU0
  4:          0   PMAC-PIC      SCC-txdma
  5:          0   PMAC-PIC      SCC-rxdma
  6:          0   PMAC-PIC      SCC-txdma
  7:          0   PMAC-PIC      SCC-rxdma
  8:          0   PMAC-PIC      AWACS out
 12:        125   PMAC-PIC      MESH
 13:       2861   PMAC-PIC      ide0
 14:          3   PMAC-PIC      ide1
 15:          0   PMAC-PIC      SCC
 16:          0   PMAC-PIC      SCC
 17:          0   PMAC-PIC      AWACS
 18:       3469   PMAC-PIC      VIA
 19:          0   PMAC-PIC      SWIM3
BAD:          0


[AArthur@hagoleche AArthur]$ cat ~/cpuinfo.12b3
processor       : 0
cpu             : 603ev
clock           : 200MHz
revision        : 2.1
bogomips        : 11.39
zero pages      : total 0 (0Kb) current: 0 (0Kb) hits: 0/217 (0%)
machine         : Power Macintosh
motherboard     : AAPL,e826 MacRISC
L2 cache        : 256K unified
memory          : 32MB


Here is my current setup (using BootX 1.1.3):

[AArthur@hagoleche AArthur]$ cat /proc/interrupts
           CPU0
  4:          0   PMAC-PIC      SCC-txdma
  5:      16262   PMAC-PIC      SCC-rxdma
  6:          0   PMAC-PIC      SCC-txdma
  7:          0   PMAC-PIC      SCC-rxdma
  8:      35864   PMAC-PIC      AWACS out
 12:      15898   PMAC-PIC      MESH
 13:      54305   PMAC-PIC      ide0
 14:       8063   PMAC-PIC      ide1
 15:     190585   PMAC-PIC      SCC
 16:          0   PMAC-PIC      SCC
 17:          0   PMAC-PIC      AWACS
 18:     564944   PMAC-PIC      VIA
 19:          0   PMAC-PIC      SWIM3
BAD:          0

[AArthur@hagoleche AArthur]$ cat /proc/cpuinfo
processor       : 0
cpu             : 603ev
clock           : 200MHz
revision        : 2.1
bogomips        : 133.12
zero pages      : total 0 (0Kb) current: 0 (0Kb) hits: 0/323 (0%)
machine         : Power Macintosh
motherboard     : AAPL,e826 MacRISC
L2 cache        : 256K unified
memory          : 32MB

Andrew B. Arthur | arthur99@global2000.net |

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Re: BootX slowdown

[Benjamin Herrenschmidt]

On Thu, Jan 20, 2000, Andrew B. Arthur <arthur99@global2000.net> wrote:

>>
>>  - boot with BootX 1.2b3 in the exact same configuration that usually
>> triggers the slowdown problem. You may eventually boot single user or
>> even "init=/bin/sh" so that it doesn't take for ever to reach bash prompt.
>
>Running on a PowerMacintosh 4400/200. BootX 1.2b3 and BootX 1.1.3
>results listed below. Linux hagoleche.aarthur.bsdonline.org 2.2.14 #1
>Sun Jan 16 02:39:35 EST 2000 ppc unknown

It appears that on some machines, the ICTC is not 0 when booting from
MacOS. I'll add code to reset it in a next kernel. This may or may not be
the cause of your problem (this issue was spotted on a G3-based powerbook).


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