I have now reproduced the lockup in 2.4.4, having passed the
additional boot parameters "nmi_watchdog=1 noapic".
To be more specific, it happens when switching from a vc running a
text console to the vc running X. I'm thinking that maybe the umount
NFS is a coincidence / red herring.
Chris
My video card is a Matrox G400 AGP 32MB with TV-OUT, and I'm not using
the frame buffer driver.
> On Sat, 26 May 2001, Chris Rankin wrote:
>
> > Hi,
> >
> > Thanks for the patch; I successfully unmounted my reiserfs USB Zip 250
> > MB disc. However, the box then locked up hard when I unmounted an NFS
> > mount and tried to switch to another virtual console.
>
> That's... interesting. With that patch changes to fs/super.c should make
> no difference whatsoever.
>
> OK, can you reproduce NFS lockup on 2.4.5-pre5 (without that patch)
> and on 2.4.5-pre3 (ditto)?
>
> There were NFS changes in -pre4 and -pre5 and umount ones in -pre6. The
> latter need the patch I've posted, so vanilla -pre5 and -pre3 are the
> first candidates for checking.
>
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