Re: ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)

2008-02-23 Thread Alan Cox 
O I don't see the connection between (no-)smp and ata. Something with
 interrupt routing/IPI, missing irq ack? Booting another !SMP kernel
 works fine. The problem also exists in 2.6.24-rc2.

Almost certainly interrupt routing try smp but with noapic and see if it
fails as well ?
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Re: ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)

2008-02-23 Thread Vegard Nossum 
On Sat, Feb 23, 2008 at 7:31 PM, Alan Cox [EMAIL PROTECTED] wrote:
 O I don't see the connection between (no-)smp and ata. Something with

  interrupt routing/IPI, missing irq ack? Booting another !SMP kernel
   works fine. The problem also exists in 2.6.24-rc2.

  Almost certainly interrupt routing try smp but with noapic and see if it
  fails as well ?

Just a quick follow-up. On regular bootups, I get this message:

ata1: SATA max UDMA/133 cmd 0xf8850100 ctl 0x bmdma 0x irq 218
ata2: SATA max UDMA/133 cmd 0xf8850180 ctl 0x bmdma 0x irq 218

while the nosmp one gets this (the screenshot cut the irq part):

ata1: SATA max UDMA/133 abar [EMAIL PROTECTED] port 0x9b304100 irq 223
ata2: SATA max UDMA/133 abar [EMAIL PROTECTED] port 0x9b304100 irq 223

Don't know if the irq # change is significant or not. Will try noapic now.


Vegard
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Re: ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)

2008-02-23 Thread Vegard Nossum 
On Sat, Feb 23, 2008 at 7:31 PM, Alan Cox [EMAIL PROTECTED] wrote:
 O I don't see the connection between (no-)smp and ata. Something with

  interrupt routing/IPI, missing irq ack? Booting another !SMP kernel
   works fine. The problem also exists in 2.6.24-rc2.

  Almost certainly interrupt routing try smp but with noapic and see if it
  fails as well ?

noapic works fine.


V
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