2.6.19-rc1: PATA long delay with AMD driver on init

2.6.19-rc1: PATA long delay with AMD driver on init

[Prakash Punnoor]

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Hi,

I tried the PATA driver for my onboard IDE with one DVD+RW drive connected as 
master. The driver hangs a long time on probing (and causing major havoc on 
the rest of my devices). Using the old IDE driver I don't have this problem.

I deactivated one SATA and secondary IDE controller. Enabled the situation 
gets worse.


The kernel is patched with reiser4 and acpi_skip_timer_override quirk is 
deactivated (see last link why).

I tried different combinations (dmesg + .config). Differences are mostly pci 
mt init, irqpoll, nforce eth napi, pata/ide amd driver

http://www.prakash.gmxhome.de/linux/2.6.19-rc1-1.txt.bz2
http://www.prakash.gmxhome.de/linux/2.6.19-rc1-2.txt.bz2
http://www.prakash.gmxhome.de/linux/2.6.19-rc1-3.txt.bz2
http://www.prakash.gmxhome.de/linux/2.6.19-rc1-4.txt.bz2

cat /proc/interrupts for 2.6.18 resp .19-rc1
http://www.prakash.gmxhome.de/linux/irqs18.txt
http://www.prakash.gmxhome.de/linux/irqs19.txt

lspci can be found here:
http://marc.theaimsgroup.com/?l=linux-kernel&m=115545986619977&w=2

Cheers,
-- 
(°=                 =°)
//\ Prakash Punnoor /\\
V_/                 \_V

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Re: 2.6.19-rc1: PATA long delay with AMD driver on init

[Prakash Punnoor]

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Am Donnerstag 05 Oktober 2006 15:20 schrieb Alan Cox:
> Ar Iau, 2006-10-05 am 09:30 +0200, ysgrifennodd Prakash Punnoor:
> > Hi,
> >
> > I tried the PATA driver for my onboard IDE with one DVD+RW drive
> > connected as master. The driver hangs a long time on probing
>
> That is sort fo expected for some AMD variants right now as they don't
> all have enable bits. Once Tejun's work on drive discovery is in I'll
> probably enable it for all PATA chips and that ought to sort it out

Hmm, OK, is is possible to prevent probing the slave by kernel paramter?
-- 
(°=                 =°)
//\ Prakash Punnoor /\\
V_/                 \_V

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Re: 2.6.19-rc1: PATA long delay with AMD driver on init

[Alan Cox]

Ar Iau, 2006-10-05 am 09:30 +0200, ysgrifennodd Prakash Punnoor:
> Hi,
> 
> I tried the PATA driver for my onboard IDE with one DVD+RW drive connected as 
> master. The driver hangs a long time on probing 

That is sort fo expected for some AMD variants right now as they don't
all have enable bits. Once Tejun's work on drive discovery is in I'll
probably enable it for all PATA chips and that ought to sort it out