Robert Millan wrote, on 05/01/08 22:52:
On Sat, Jan 05, 2008 at 03:20:31AM +1030, Arthur Marsh wrote:
Previously, the upgrade was locking up when running grub-mkdevicemap which was calling:

open("/dev/hdc", O_RDONLY|O_LARGEFILE

That sounds unlikely;  it would mean this is a bug in Linux.  Are you sure it
was locked in that call, rather than _after_ it?

You can use gdb to determine.  Try building a debug grub-mkdevicemap
(DEB_BUILD_OPTIONS=nostrip,noopt,debug), run it with gdb and interrupt it
where it has hung, then obtain a backtrace ("bt").


Thanks for the suggestion... I'm not sure how to reproduce the problem condition as I had done a week's worth of twice-daily upgrades to Debian unstable before this lock-up.

What does grub-mkdevicemap do?

Arthur.



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