X86_MCE (Machine Check Exception) use cases/justification: - David's laptop is running slowly with no indication why -> before moving his workflow over to Microsoft Windows, he (spending considerable time) rebuilds the kernel with CONFIG_X86_MCE after finding a tip on a forum -> after booting into his built kernel, he sees MCE reports in 'dmesg' saying that the processor is raising thermal trip (PROC_HOT#) events and is being throttled -> he cleans out a load of fluff from the heatsink air-flow path and performance is restored
- Jane is frustrated that occasionally on her desktop, processes get hit by SIGSEGV, SIGILL and SIGBUS, so she raises a launchpad report, but nothing looks suspicious and engineers at Canonical cannot reproduce the problem -> she switches to Windows and experiences the same issues -> after checking the Windows Event Log, she learns Machine Check Exceptions are being raised from the processor with timed-out memory reads. She replaces the memory in her desktop, resolving the problem and stays using Windows -- karmic kernel configuration gotchas... https://bugs.launchpad.net/bugs/446480 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
