On Wed, 1 Oct 2014 21:34:18 +0200 Heinz Diehl <htd+ml@xxxxxxxxxx> wrote: > On 01.10.2014, Ranjan Maitra wrote: > > > Unfortunately, there are hard lockups. > > Then, you should definitely report this to the Fedora kernel folks. Thanks! I have done this. > You can also try with a vanilla kernel from kernel.org, and if the > problem persists, you could report it directly to the linux kernel > mailing list. I will look into this, thanks! > > > How do I disable irqbalance? > > You can do a "yum remove irqbalance" or a "systemctl disable > irqbalance.service". And add "acpi_irq_nobalance" to the kernel boot > parameters in grub.conf. > I see, thanks. > > And there appears to be no irq.c on my system. > > It should be in the arch/x86/kernel/ directory of your kernel sourcetree. > It's been quite a while I tried to understand this area of the kernel. > Sure, thanks! > [....] > > > I did submit a bug report yesterday but it has not been assigned yet. > > Looks like an obscure issue. > > This (and/or similar bugs) are going on for a while. I remember > those hard lockups from quite a few years back in time (at least in > the 2.6 generation). Not sure if they have the same origin/cause, > though. If I remember this correctly, both a racy irq migration > code as well as a faulty BIOS were discussed. > > Maybe there is a BIOS update for your machine? The machine is three months old, so not completely clear but I will take a look. One problem is that I stripped out the Windows 7 that it came with, and may be an issue. Here is the bios released as per Dell: http://www.dell.com/support/home/us/en/04/Drivers/DriversDetails?driverId=F7PPW&fileId=3389537340&osCode=WB64A&productCode=precision-m3800-workstation&languageCode=EN&categoryId=BI Thanks again! Best wishes, Ranjan ____________________________________________________________ FREE 3D EARTH SCREENSAVER - Watch the Earth right on your desktop! Check it out at http://www.inbox.com/earth -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
