How to sacrifice a certain program in the case of OOM?
On low-RAM, swapless systems, OOM error makes system hang for a while. It accesses the system disk device heavily (BTW I wonder why, there is no swap and no way to get memory from nothing — so what is it hopes and tries for?), and, at last, OOM killer does it's job.
How can I execute pkill -9 scapegoat_program_name every time memory allocation fails? I want to kill the least needed process first. And activate the common OOM solutions only if it didn't help.
If it's impossible, I want to give the scapegoat PID to the OOM killer before any troubles occur (in order to make OOM killer begin with the scapegoat). But it takes way to long before the OOM killer starts. I want to make the scapegoat sacrifice the first thing my system do and avoid that long freeze.
kernel ram
asked 8 hours ago
NickDoomNickDoom
315
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On low-RAM, swapless systems, OOM error makes system hang for a while. It accesses the system disk device heavily (BTW I wonder why, there is no swap and no way to get memory from nothing — so what is it hopes and tries for?), and, at last, OOM killer does it's job.
How can I execute pkill -9 scapegoat_program_name every time memory allocation fails? I want to kill the least needed process first. And activate the common OOM solutions only if it didn't help.
If it's impossible, I want to give the scapegoat PID to the OOM killer before any troubles occur (in order to make OOM killer begin with the scapegoat). But it takes way to long before the OOM killer starts. I want to make the scapegoat sacrifice the first thing my system do and avoid that long freeze.
kernel ram
asked 8 hours ago
NickDoomNickDoom
315
New contributor
NickDoom is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
This is for Unix & Linux. Ubuntu doesn't run on low RAM swapless systems.
– Pilot6
8 hours ago
@Pilot6 a watt ?! So Ubuntu cannot be installed with custom partitioning of only/and no swap and PC that has only 1GB RAM ?! Then how was I able to do that on my 10 year-old laptop ?! Alexa this is so sad, play "Despacito"
– Sergiy Kolodyazhnyy
8 hours ago
1
It is possible but doesn't meet minimal requirements. Running on 1GB without swap is not supported.
– Pilot6
8 hours ago
@Pilot6 It's totally possible to run Ubuntu without swap, and it's equally possible to run out of memory with swap enabled. I see no reason why this is off topic here.
– vidarlo
7 hours ago
1
Some reasons: 1) OP never mentioned Ubuntu; 2) question isn't Ubuntu specific; 3) it's unlikely very useful for Ubuntu users. So U&L is a better place for it.
– Pilot6
7 hours ago
|
show 4 more comments
On low-RAM, swapless systems, OOM error makes system hang for a while. It accesses the system disk device heavily (BTW I wonder why, there is no swap and no way to get memory from nothing — so what is it hopes and tries for?), and, at last, OOM killer does it's job.
How can I execute pkill -9 scapegoat_program_name every time memory allocation fails? I want to kill the least needed process first. And activate the common OOM solutions only if it didn't help.
If it's impossible, I want to give the scapegoat PID to the OOM killer before any troubles occur (in order to make OOM killer begin with the scapegoat). But it takes way to long before the OOM killer starts. I want to make the scapegoat sacrifice the first thing my system do and avoid that long freeze.
kernel ram
asked 8 hours ago
NickDoomNickDoom
315
New contributor
NickDoom is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
On low-RAM, swapless systems, OOM error makes system hang for a while. It accesses the system disk device heavily (BTW I wonder why, there is no swap and no way to get memory from nothing — so what is it hopes and tries for?), and, at last, OOM killer does it's job.
How can I execute pkill -9 scapegoat_program_name every time memory allocation fails? I want to kill the least needed process first. And activate the common OOM solutions only if it didn't help.
If it's impossible, I want to give the scapegoat PID to the OOM killer before any troubles occur (in order to make OOM killer begin with the scapegoat). But it takes way to long before the OOM killer starts. I want to make the scapegoat sacrifice the first thing my system do and avoid that long freeze.
kernel ram
kernel ram
asked 8 hours ago
NickDoomNickDoom
315
New contributor
NickDoom is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 8 hours ago
NickDoomNickDoom
315
New contributor
NickDoom is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 8 hours ago
NickDoomNickDoom
315
New contributor
NickDoom is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 8 hours ago
NickDoomNickDoom
315
asked 8 hours ago
NickDoomNickDoom
315
315
New contributor
NickDoom is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
NickDoom is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
NickDoom is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
This is for Unix & Linux. Ubuntu doesn't run on low RAM swapless systems.
– Pilot6
8 hours ago
@Pilot6 a watt ?! So Ubuntu cannot be installed with custom partitioning of only/and no swap and PC that has only 1GB RAM ?! Then how was I able to do that on my 10 year-old laptop ?! Alexa this is so sad, play "Despacito"
– Sergiy Kolodyazhnyy
8 hours ago
1
It is possible but doesn't meet minimal requirements. Running on 1GB without swap is not supported.
– Pilot6
8 hours ago
@Pilot6 It's totally possible to run Ubuntu without swap, and it's equally possible to run out of memory with swap enabled. I see no reason why this is off topic here.
– vidarlo
7 hours ago
1
Some reasons: 1) OP never mentioned Ubuntu; 2) question isn't Ubuntu specific; 3) it's unlikely very useful for Ubuntu users. So U&L is a better place for it.
– Pilot6
7 hours ago
|
show 4 more comments
1
This is for Unix & Linux. Ubuntu doesn't run on low RAM swapless systems.
– Pilot6
8 hours ago
@Pilot6 a watt ?! So Ubuntu cannot be installed with custom partitioning of only/and no swap and PC that has only 1GB RAM ?! Then how was I able to do that on my 10 year-old laptop ?! Alexa this is so sad, play "Despacito"
– Sergiy Kolodyazhnyy
8 hours ago
1
It is possible but doesn't meet minimal requirements. Running on 1GB without swap is not supported.
– Pilot6
8 hours ago
@Pilot6 It's totally possible to run Ubuntu without swap, and it's equally possible to run out of memory with swap enabled. I see no reason why this is off topic here.
– vidarlo
7 hours ago
1
Some reasons: 1) OP never mentioned Ubuntu; 2) question isn't Ubuntu specific; 3) it's unlikely very useful for Ubuntu users. So U&L is a better place for it.
– Pilot6
7 hours ago
1
1
This is for Unix & Linux. Ubuntu doesn't run on low RAM swapless systems.
– Pilot6
8 hours ago
This is for Unix & Linux. Ubuntu doesn't run on low RAM swapless systems.
– Pilot6
8 hours ago
@Pilot6 a watt ?! So Ubuntu cannot be installed with custom partitioning of only
/ and no swap and PC that has only 1GB RAM ?! Then how was I able to do that on my 10 year-old laptop ?! Alexa this is so sad, play "Despacito"– Sergiy Kolodyazhnyy
8 hours ago
@Pilot6 a watt ?! So Ubuntu cannot be installed with custom partitioning of only
/ and no swap and PC that has only 1GB RAM ?! Then how was I able to do that on my 10 year-old laptop ?! Alexa this is so sad, play "Despacito"– Sergiy Kolodyazhnyy
8 hours ago
1
1
It is possible but doesn't meet minimal requirements. Running on 1GB without swap is not supported.
– Pilot6
8 hours ago
It is possible but doesn't meet minimal requirements. Running on 1GB without swap is not supported.
– Pilot6
8 hours ago
@Pilot6 It's totally possible to run Ubuntu without swap, and it's equally possible to run out of memory with swap enabled. I see no reason why this is off topic here.
– vidarlo
7 hours ago
@Pilot6 It's totally possible to run Ubuntu without swap, and it's equally possible to run out of memory with swap enabled. I see no reason why this is off topic here.
– vidarlo
7 hours ago
1
1
Some reasons: 1) OP never mentioned Ubuntu; 2) question isn't Ubuntu specific; 3) it's unlikely very useful for Ubuntu users. So U&L is a better place for it.
– Pilot6
7 hours ago
Some reasons: 1) OP never mentioned Ubuntu; 2) question isn't Ubuntu specific; 3) it's unlikely very useful for Ubuntu users. So U&L is a better place for it.
– Pilot6
7 hours ago
|
show 4 more comments
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1
This is for Unix & Linux. Ubuntu doesn't run on low RAM swapless systems.
– Pilot6
8 hours ago
@Pilot6 a watt ?! So Ubuntu cannot be installed with custom partitioning of only
/and no swap and PC that has only 1GB RAM ?! Then how was I able to do that on my 10 year-old laptop ?! Alexa this is so sad, play "Despacito"– Sergiy Kolodyazhnyy
8 hours ago
1
It is possible but doesn't meet minimal requirements. Running on 1GB without swap is not supported.
– Pilot6
8 hours ago
@Pilot6 It's totally possible to run Ubuntu without swap, and it's equally possible to run out of memory with swap enabled. I see no reason why this is off topic here.
– vidarlo
7 hours ago
1
Some reasons: 1) OP never mentioned Ubuntu; 2) question isn't Ubuntu specific; 3) it's unlikely very useful for Ubuntu users. So U&L is a better place for it.
– Pilot6
7 hours ago