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Bug#387242: udev causes CPU#0 soft lockup on IBM xSeries 336

Package: debian-installer
Version: etch b3 20060910 snapshot
Severity: important

As mentioned in bug report Bug#387147, I had another look to installing
etch b3 on the xSeries 336 server (FYI: that bug was a udev problem on
an IBM xSeries 306).

While the install is fine; it locks up during first boot.

The message (just after initialising the mtdbase modules and registering
sd0:0:0) is a kernel BUG about 

CPU#0 soft lock detected.

Re-compiling the kernel to 2.6.17 with the same config as the
2.6.16-amd64-generic as provided with etch b3 (only change is setting
the proc arch to EM64T) and upgrading udev to the sid version solves the
problem for me;

kernel compiled with
fakeroot make-kpkg --revision 0.1 --initrd kernel_image

I should have checked if upgrading the kernel alone did the trick, but
since the problems with udev on the 306; I decided on upgrading it with
the kernel.

-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (990, 'unstable'), (700, 'experimental'), (500, 'stable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.17
Locale: LANG=en_GB, LC_CTYPE=en_GB (charmap=ISO-8859-1)

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