Created attachment 603630 [details] Picture of the output on the screen Description of problem: System crashes with kernel panic output message displayed. The message states: CPU 2: Machine check exception: 5 bank 4: B2000000110040... TSC 2607ec463a12 Processor 0:206a7 TIME 1344618342 Socket 0 APIC 2 microco... Run the above through 'mcelog --ascii' Some CPUs didn't answer in synchronization Machine check: Invalid Kernel panic - not syncing: Fatal machine check on current CPU RIP !INEXACT! 33:<00000038e1599024> Shutting down CPUs with NMI panic occured, switching back to text console Rebooting in 30 seconds ACPI MEMORY or I/O RESET_REG Version-Release number of selected component (if applicable): How reproducible: This happened twice when running big compilation loads so far. Steps to Reproduce: (unsure steps) 1. Update the LibreOffice source from git 2. Run nice -n19 make 3. Let it happen (I didn't re-test it) Actual results: Crash. Expected results: No crash. Additional info: Kernel version: kernel-3.5.0-2.fc17.x86_64
this sounds like a hardware problem of some kind.
That is possible. But it hasn't happened in other kernels...
Is this still happening with 3.5.3? If so, can you boot into the last 3.4 kernel and see if it reproduces there?