On 2015-11-01 13:45, Vitor Pereira wrote:
Hi, Laptop CPU Intel N3530 with Linux version 4.2.5 complete freezes from time to time and I cannot find the right solution. It does not respond to keyboard or mouse and only hardreset helps out. I have installed Arch Linux with KDE Plasma 5.4.2 on my laptop LG 15U340-L.BK55P1 with Corsair Neutron SSD and it freezes randomly. Sometimes only a few minutes after start and sometimes hours. It freezes more often when I do something on the internet (videostream).I have disabled intel-pstate and use acpi-cpufreq (although the temperature should not be the problem) and it still freezes. I also have compiled Linux 4.2.5 with CONFIG_DEBUG_INFO=y, CONFIG_CRASH_DUMP=y and CONFIG_PROC_VMCORE=y to use Kdump. I checked whether the crash kernel was working running command echo c > /proc/sysrq-trigger and it worked. But when I reboot Linux 4.2.5, loaded crash kernel and waited for Linux 4.2.5 freezes then Kdump was not triggered.
Try building with the following kconfig options added: LOCKUP_DETECTOR=y BOOTPARAM_HARDLOCKUP_PANIC=y BOOTPARAM_SOFTLOCKUP_PANIC=y DETECT_HUNG_TASKS=y BOOTPARAM_HUNG_TASK_PANIC=yWhile those won't fix the issue, they should at least get you a crashdump when the system hangs, which in turn should help track down what exactly is happening.
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