Red Hat Bugzilla – Bug 471978
Constant reboot (startup udev)
Last modified: 2013-01-10 02:09:26 EST
Description of problem:
Fedora constantly reboots on loading while using laptop Samsung Q310
Version of Linux:
Fedora 10 Preview x64 Live
Turn on Fedora with Live CD on Samsung Q310 (not confirmed in other notebooks). While booting (preferably without rhgb and without quiet) it gets to the point:
Welcome to Fedora. Press "I" to enter interactive startup.
Then the system reboots.
Information from Ubuntu forum (http://tinyurl.com/6ol2mw) confirms similar problem. Suggested solutions on that forum:
-Booting with "acpi=off" or "acpi=ht"
-With cpufreq disabled in the kernel, and the thermal and processor modules blacklisted then the system boots OK
-"Incidentally, everything seems to work perfectly on a 32bit LiveCD"
Probable similarity to the bug 467519 (Samsung R560).
blacklisting sounds like a kernel problem
I suspect this machine has severely broken ACPI tables.
Can you install pmtools, run acpidump and attach the output ?
Created attachment 323946 [details]
This it the result of acpidump. I run it on the newest Madriva, which surprisingly started from LiveCD and worked without any problems - I hope this helps somehow.
This bug appears to have been reported against 'rawhide' during the Fedora 10 development cycle.
Changing version to '10'.
More information and reason for this action is here:
I am happy to inform you that this bug does not exist any longer.
The newest bios for Samsung Q310 + Fedora 10 (final) work perfectly.
Unfortunately, I have to withdraw my previous statement.
My previous statement referred to Fedora 10 32 bit, which works OK. Nonetheless, the bug is still present on 64 bit version of Fedora. I am unable to boot without acpi=off parameter.
Link to Ubuntu bugs, where people also refer to Fedora 10 and confirm the same problem: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/272530
I can confirm this bug in Fedora 11 x86_64 Live
I have Samsung X360
On Fedora 11 i686 Live works very well, whereas on x86_64 it reboots constantly in endless loop.
Please change version of this bug from 10 to 11.
I am sure (from reading another posts and bug reports, eg. Ubuntu) that this is not only problem of Samsung Q310, R560, X360 but possibly for many more Samsung laptops.
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