Public bug reported: On a Dell Inspiration 1150 running Lucid, I took the update of 4/16/10 and discovered that the machine froze reproduceably on boot with kernel 2.6.32-21. Only dropping back to the kernel just before the update (kernel 2.6.32-20) enabled the machine to boot. The machine is otherwise a completely stock 32-bit desktop install, fully up-to-date via update-manager, and it does -not- have any encrypted filesystems. It is partitioned using the installer defaults on a 10G IDE disk.
Specifically, under -21, the machine clears the screen, displays the new Ubuntu logo with the five dots under it (though, I -think-, about twice as large for both as under -20), clears the screen again, and hard-locks ---no keyboard input at all works (including both C-A-DEL and attempts to switch to a different VT), screen is blank, network won't respond to pings. The machine cannot be recovered without holding down the power buttun until it turns itself off. I note that the machine -can- be pinged for 5 to 10 seconds immediately after boot, and then drops off the network when everything else freezes. Booting in recovery mode does work in -21, though of course that's unsuitable for production use since it asks a question and the machine is used unattended. Getting to the grub menu and altering the boot line to read noquiet nosplash (instead of quiet splash) does -not- allow the machine to boot; it freezes as before. Because the machine freezes before it can write any logs, I don't have anything useful to attach, unless you'd like logs or lshw or whatever from the working state in -20. I have recovered by forcing "GRUB_DEFAULT='Ubuntu, with Linux 2.6.32-20-generic'" in /etc/default/grub, but this means I cannot take any newer kernels until this bug is fixed. I cannot easily debug because this machine is in an area that is difficult to access and a 20-minute drive away, but if there is a proposed fix that is quite likely to work, I can go there and try it. [Note that I couldn't file this bug using ubuntu-bug because it claims that neither kernel nor linux were valid packages, despite the bug HowTo that claims that's what I should use.] ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- Kernel 2.6.32-21-generic freezes Dell Inspiration 1150 on boot; 2.6.32-20 is fine https://bugs.launchpad.net/bugs/565535 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs