Ubuntu Linux complete freeze on multi-core load
I got a problem with my computer freezing I have not been able to resolve. The system spec's are as follows:
- AMD FX6300
- ASRock 970 Extreme3 R2.0
- 2x Kingston KHX1600C9D3/4GX
- BeQuiet Straight Power 500W
I am running Ubuntu 18.04 LTS. As soon as I start tasks which are CPU as well as RAM intensive, the whole system freezes. I can easily reproduce the error through starting an OpenFOAM simulation job in parallel mode.
Usually the computer is controlled via SSH. As soon as I start the task, in a matter of seconds, at most minutes, the system becomes uncontrollable. Also ping requests from other computers stop getting returned as soon as the freeze happens. For testing purposes I fitted the system with a GPU and noticed, that I do not get a crash but a complete system freezes - the screen just freezes and I am not able to input any command either via keyboard or mouse.
In terms of troubleshooting I already tried:
- running Memtest --> 4 runs without any problems
- testing the RAM sticks each individually in different slots
- re-applying cooling paste on the CPU
- disconnecting the GPU
syslog and faillog didn't turn up anything concerning either.
Any ideas on further troubleshooting?
linux ubuntu memory cpu freeze
asked Jan 16 at 16:02
NascorNascor
61
add a comment |
I got a problem with my computer freezing I have not been able to resolve. The system spec's are as follows:
- AMD FX6300
- ASRock 970 Extreme3 R2.0
- 2x Kingston KHX1600C9D3/4GX
- BeQuiet Straight Power 500W
I am running Ubuntu 18.04 LTS. As soon as I start tasks which are CPU as well as RAM intensive, the whole system freezes. I can easily reproduce the error through starting an OpenFOAM simulation job in parallel mode.
Usually the computer is controlled via SSH. As soon as I start the task, in a matter of seconds, at most minutes, the system becomes uncontrollable. Also ping requests from other computers stop getting returned as soon as the freeze happens. For testing purposes I fitted the system with a GPU and noticed, that I do not get a crash but a complete system freezes - the screen just freezes and I am not able to input any command either via keyboard or mouse.
In terms of troubleshooting I already tried:
- running Memtest --> 4 runs without any problems
- testing the RAM sticks each individually in different slots
- re-applying cooling paste on the CPU
- disconnecting the GPU
syslog and faillog didn't turn up anything concerning either.
Any ideas on further troubleshooting?
linux ubuntu memory cpu freeze
asked Jan 16 at 16:02
NascorNascor
61
1
Monitor/log the temps? Vents & fans are all clean & working? Could try throttling down the max cpu frequency for testing (cpufreq-utils if supported, I think there's another similar utility too)?
– Xen2050
Jan 16 at 23:17
CPU temps seemed to be fine (maxed out during ~60°C in prime95 before repasting) - the CPU throtteling approach sounds reasonable, I'll try that out, thanks!
– Nascor
Jan 17 at 7:32
Set CPU max to 2.5GHz and had a freeze after just a couple of seconds running OpenFOAM on three cores. So neither frequency nor temperature seem to have an influence (I highly doubt higher temperatures than ~20°C after 10 seconds of running)
– Nascor
Jan 17 at 7:46
That's one issue down... I'd try a different kernel & distribution, a live ISO (USB/DVD) is easy to make & install to the live system (if there's enough ram) & test. Maybe a newer/older Ubuntu, or Debian, or a different "family" like opensuse, fedora, etc. Next idea would be the power supply
– Xen2050
Jan 17 at 19:11
add a comment |
I got a problem with my computer freezing I have not been able to resolve. The system spec's are as follows:
- AMD FX6300
- ASRock 970 Extreme3 R2.0
- 2x Kingston KHX1600C9D3/4GX
- BeQuiet Straight Power 500W
I am running Ubuntu 18.04 LTS. As soon as I start tasks which are CPU as well as RAM intensive, the whole system freezes. I can easily reproduce the error through starting an OpenFOAM simulation job in parallel mode.
Usually the computer is controlled via SSH. As soon as I start the task, in a matter of seconds, at most minutes, the system becomes uncontrollable. Also ping requests from other computers stop getting returned as soon as the freeze happens. For testing purposes I fitted the system with a GPU and noticed, that I do not get a crash but a complete system freezes - the screen just freezes and I am not able to input any command either via keyboard or mouse.
In terms of troubleshooting I already tried:
- running Memtest --> 4 runs without any problems
- testing the RAM sticks each individually in different slots
- re-applying cooling paste on the CPU
- disconnecting the GPU
syslog and faillog didn't turn up anything concerning either.
Any ideas on further troubleshooting?
linux ubuntu memory cpu freeze
asked Jan 16 at 16:02
NascorNascor
61
I got a problem with my computer freezing I have not been able to resolve. The system spec's are as follows:
- AMD FX6300
- ASRock 970 Extreme3 R2.0
- 2x Kingston KHX1600C9D3/4GX
- BeQuiet Straight Power 500W
I am running Ubuntu 18.04 LTS. As soon as I start tasks which are CPU as well as RAM intensive, the whole system freezes. I can easily reproduce the error through starting an OpenFOAM simulation job in parallel mode.
Usually the computer is controlled via SSH. As soon as I start the task, in a matter of seconds, at most minutes, the system becomes uncontrollable. Also ping requests from other computers stop getting returned as soon as the freeze happens. For testing purposes I fitted the system with a GPU and noticed, that I do not get a crash but a complete system freezes - the screen just freezes and I am not able to input any command either via keyboard or mouse.
In terms of troubleshooting I already tried:
- running Memtest --> 4 runs without any problems
- testing the RAM sticks each individually in different slots
- re-applying cooling paste on the CPU
- disconnecting the GPU
syslog and faillog didn't turn up anything concerning either.
Any ideas on further troubleshooting?
linux ubuntu memory cpu freeze
linux ubuntu memory cpu freeze
asked Jan 16 at 16:02
NascorNascor
61
asked Jan 16 at 16:02
NascorNascor
61
asked Jan 16 at 16:02
NascorNascor
61
asked Jan 16 at 16:02
NascorNascor
61
asked Jan 16 at 16:02
NascorNascor
61
61
1
Monitor/log the temps? Vents & fans are all clean & working? Could try throttling down the max cpu frequency for testing (cpufreq-utils if supported, I think there's another similar utility too)?
– Xen2050
Jan 16 at 23:17
CPU temps seemed to be fine (maxed out during ~60°C in prime95 before repasting) - the CPU throtteling approach sounds reasonable, I'll try that out, thanks!
– Nascor
Jan 17 at 7:32
Set CPU max to 2.5GHz and had a freeze after just a couple of seconds running OpenFOAM on three cores. So neither frequency nor temperature seem to have an influence (I highly doubt higher temperatures than ~20°C after 10 seconds of running)
– Nascor
Jan 17 at 7:46
That's one issue down... I'd try a different kernel & distribution, a live ISO (USB/DVD) is easy to make & install to the live system (if there's enough ram) & test. Maybe a newer/older Ubuntu, or Debian, or a different "family" like opensuse, fedora, etc. Next idea would be the power supply
– Xen2050
Jan 17 at 19:11
add a comment |
1
Monitor/log the temps? Vents & fans are all clean & working? Could try throttling down the max cpu frequency for testing (cpufreq-utils if supported, I think there's another similar utility too)?
– Xen2050
Jan 16 at 23:17
CPU temps seemed to be fine (maxed out during ~60°C in prime95 before repasting) - the CPU throtteling approach sounds reasonable, I'll try that out, thanks!
– Nascor
Jan 17 at 7:32
Set CPU max to 2.5GHz and had a freeze after just a couple of seconds running OpenFOAM on three cores. So neither frequency nor temperature seem to have an influence (I highly doubt higher temperatures than ~20°C after 10 seconds of running)
– Nascor
Jan 17 at 7:46
That's one issue down... I'd try a different kernel & distribution, a live ISO (USB/DVD) is easy to make & install to the live system (if there's enough ram) & test. Maybe a newer/older Ubuntu, or Debian, or a different "family" like opensuse, fedora, etc. Next idea would be the power supply
– Xen2050
Jan 17 at 19:11
1
1
Monitor/log the temps? Vents & fans are all clean & working? Could try throttling down the max cpu frequency for testing (cpufreq-utils if supported, I think there's another similar utility too)?
– Xen2050
Jan 16 at 23:17
Monitor/log the temps? Vents & fans are all clean & working? Could try throttling down the max cpu frequency for testing (cpufreq-utils if supported, I think there's another similar utility too)?
– Xen2050
Jan 16 at 23:17
CPU temps seemed to be fine (maxed out during ~60°C in prime95 before repasting) - the CPU throtteling approach sounds reasonable, I'll try that out, thanks!
– Nascor
Jan 17 at 7:32
CPU temps seemed to be fine (maxed out during ~60°C in prime95 before repasting) - the CPU throtteling approach sounds reasonable, I'll try that out, thanks!
– Nascor
Jan 17 at 7:32
Set CPU max to 2.5GHz and had a freeze after just a couple of seconds running OpenFOAM on three cores. So neither frequency nor temperature seem to have an influence (I highly doubt higher temperatures than ~20°C after 10 seconds of running)
– Nascor
Jan 17 at 7:46
Set CPU max to 2.5GHz and had a freeze after just a couple of seconds running OpenFOAM on three cores. So neither frequency nor temperature seem to have an influence (I highly doubt higher temperatures than ~20°C after 10 seconds of running)
– Nascor
Jan 17 at 7:46
That's one issue down... I'd try a different kernel & distribution, a live ISO (USB/DVD) is easy to make & install to the live system (if there's enough ram) & test. Maybe a newer/older Ubuntu, or Debian, or a different "family" like opensuse, fedora, etc. Next idea would be the power supply
– Xen2050
Jan 17 at 19:11
That's one issue down... I'd try a different kernel & distribution, a live ISO (USB/DVD) is easy to make & install to the live system (if there's enough ram) & test. Maybe a newer/older Ubuntu, or Debian, or a different "family" like opensuse, fedora, etc. Next idea would be the power supply
– Xen2050
Jan 17 at 19:11
add a comment |
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1
Monitor/log the temps? Vents & fans are all clean & working? Could try throttling down the max cpu frequency for testing (cpufreq-utils if supported, I think there's another similar utility too)?
– Xen2050
Jan 16 at 23:17
CPU temps seemed to be fine (maxed out during ~60°C in prime95 before repasting) - the CPU throtteling approach sounds reasonable, I'll try that out, thanks!
– Nascor
Jan 17 at 7:32
Set CPU max to 2.5GHz and had a freeze after just a couple of seconds running OpenFOAM on three cores. So neither frequency nor temperature seem to have an influence (I highly doubt higher temperatures than ~20°C after 10 seconds of running)
– Nascor
Jan 17 at 7:46
That's one issue down... I'd try a different kernel & distribution, a live ISO (USB/DVD) is easy to make & install to the live system (if there's enough ram) & test. Maybe a newer/older Ubuntu, or Debian, or a different "family" like opensuse, fedora, etc. Next idea would be the power supply
– Xen2050
Jan 17 at 19:11