Re: IDE still misbehaving in pre-2.1.89-4 [WAS: Can't set UltraDMA mode 2 on Quantum Fireball SE]

Riccardo Facchetti (
Sun, 1 Mar 1998 18:07:20 +0100 (MET)

On Sun, 1 Mar 1998, mlord wrote:

> Adam D. Bradley wrote:
> > Unfortunately, IDE is unstable in 2.1.85 and on, at least under SMP.
> Correction: your system is unstable in 2.1.85. Cause unknown.
> > I've been done this booting w/o options and with the
> > "ide0=noautotune" option. Haven't tried a non-SMP kernel yet.
> Well.. try a non-SMP kernel then. I did receive other reports a few
> weeks back that newer SMP code was broken for some drivers, including IDE.

Correction. I am not up to date with the kernel: I run 2.1.85+Ingo's
IO-APIC patch. Tyan Tomcat IIID, dual P200, 3 IDE DISK + 1 IDE CDROM.
The system seems stable. No IDE disk corruption, no problems so far.
May be a particular hardware combination can trigger the problem, but the
IO-APIC code seems okay for me.
>From my point of view, IDE code and IO-APIC code seems stable in
2.1.85 SMP + IO-APIC (booting with pirq=0).


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