Re: SMP on AS4100 not working ?

[Sergey Tikhonov <tsv solvo ru>]

alpha-linux gmx net wrote:

> i got some bad feelings about smp on as4100.
>
> during boot i get this kernel messages:
>
> May 16 16:57:24 localhost kernel: MCPCIA machine check: vector=0x660
> pc=0xfffffc00012c62f8 code=0x2030000
> May 16 16:57:24 localhost kernel: machine check type: unknown
> May 16 16:57:24 localhost kernel: pc = [<fffffc00012c62f8>]  ra =
> [<fffffc00012c62e4>]  ps = 0000    Not tainted
> May 16 16:57:24 localhost kernel: pc is at _spin_unlock_irq+0x2c/0x38,  ra
> is at _spin_unlock_irq+0x18/0x38
> May 16 16:57:24 localhost kernel: v0 = 0000000000000007  t0 =
> fffffc00018b3c78  t1 = 000000003fffffff
> May 16 16:57:24 localhost kernel: t2 = 0000000000000000  t3 =
> fffffcf980000000  t4 = fffffc0001940d40
> May 16 16:57:24 localhost kernel: t5 = 00000000000000ff  t6 =
> 000000000000003f  t7 = fffffc0002d68000
> May 16 16:57:24 localhost kernel: a0 = 0000000000000000  a1 =
> fffffc00012d7904  a2 = 0000000000000099
> May 16 16:57:24 localhost kernel: a3 = 0000000000000100  a4 =
> fffffc00012c6038  a5 = 0000000000000000
> May 16 16:57:24 localhost kernel: t8 = 0000000000000000  t9 =
> fffffc00010d7998  t10= 0000000000000000
> May 16 16:57:24 localhost kernel: t11= 000000000000000a  pv =
> fffffc000101ca78  at = 0000000000000000
> May 16 16:57:24 localhost kernel: gp = fffffc00018b2d00  sp =
> fffffc0002d6bd88
> May 16 16:57:24 localhost kernel:   paltmp[0-1] =                7
> fffffc00018b3c78
> May 16 16:57:24 localhost kernel:   paltmp[2-3] = fffffc0001010cf0          
>  4400
> May 16 16:57:24 localhost kernel:   paltmp[4-5] = fffffcf980000000
> fffffc0001940d40
> May 16 16:57:24 localhost kernel:   paltmp[6-7] =               ff
> fffffc0001010c70
> May 16 16:57:24 localhost kernel:   paltmp[8-9] = 1f1e171515020100
> fffffc0001010f50
> May 16 16:57:24 localhost kernel:   paltmp[10-11] = fffffc00012c62f8
> fffffc0001010ab0
>
> when i do a top, i only see 1 cpu:
>
> top - 20:16:01 up 34 min,  2 users,  load average: 0.00, 0.10, 0.22
> Tasks:  65 total,   1 running,  64 sleeping,   0 stopped,   0 zombie
> Cpu(s):  0.1% us,  0.2% sy,  0.0% ni, 99.7% id,  0.0% wa,  0.0% hi,  0.0% si
> Mem:   2051608k total,   779288k used,  1272320k free,    38336k buffers
> Swap:   907656k total,        0k used,   907656k free,   676840k cached
>  
As was mentioned in prev Cristian's post - press "1" to show info about 
cpus in the top.

> cat /proc/cpuinfo:
> cpu                     : Alpha
> cpu model               : EV56
> cpu variation           : 7
> cpu revision            : 0
> cpu serial number       :
> system type             : Rawhide
> system variation        : Dodge
> system revision         : 0
> system serial number    : AY82120582
> cycle frequency [Hz]    : 466218717 est.
> timer frequency [Hz]    : 1200.00
> page size [bytes]       : 8192
> phys. address bits      : 40
> max. addr. space #      : 127
> BogoMIPS                : 795.24
> kernel unaligned acc    : 0 (pc=0,va=0)
> user unaligned acc      : 0 (pc=0,va=0)
> platform string         : AlphaServer 4100 5/466 4MB
> cpus detected           : 4
> cpus active             : 4
> cpu active mask         : 000000000000000f
> L1 Icache               : 8K, 1-way, 32b line
> L1 Dcache               : 8K, 1-way, 32b line
> L2 cache                : 96K, 3-way, 64b line
> L3 cache                : 4096K, 1-way, 64b line
>
> in cpuinfo there a 4 cpu detected and active.
>
> so how can i test this to be really sure, if it's running on all cpu's ?
> smp-kernel is running:
> Linux dhcp-17 2.6.11-1.1180axp_FC3smp #1 SMP Mon Apr 18 14:35:11
>
> btw: the dnetc client for alpha is failing with a segmentation fault.
>  
It is not part of Fedora. :)

Regards,
Sergey.