How to avoid a situation where the system is too out-of-memory to even show or kill processes?
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I recently ran into a situation where a system was too out-of-memory to even run pkill or htop, or to even create a swap file.
(But somehow I could still SSH into the system, so at least I had a shell.)
I ended up getting lucky by noticing that I could run ps and kill if I don't run the login shell, but I'm wondering if I hadn't been lucky, what could I have possibly done to avoid rebooting, assuming I still had the login shell?
Is there e.g. to reserve a specific amount of memory for a particular executable to always be able to run? Or is there a way to kill processes from within Bash that doesn't require a fork?
linux bash out-of-memory system-recovery
asked Nov 11 '17 at 20:02
Mehrdad
1,12831430
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up vote
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I recently ran into a situation where a system was too out-of-memory to even run pkill or htop, or to even create a swap file.
(But somehow I could still SSH into the system, so at least I had a shell.)
I ended up getting lucky by noticing that I could run ps and kill if I don't run the login shell, but I'm wondering if I hadn't been lucky, what could I have possibly done to avoid rebooting, assuming I still had the login shell?
Is there e.g. to reserve a specific amount of memory for a particular executable to always be able to run? Or is there a way to kill processes from within Bash that doesn't require a fork?
linux bash out-of-memory system-recovery
asked Nov 11 '17 at 20:02
Mehrdad
1,12831430
look at this: unix.stackexchange.com/questions/44985/…
– Arpit Agarwal
Nov 11 '17 at 20:40
Probably this will help you: how to create a user with limited ram usage
– FaxMax
Nov 11 '17 at 20:43
add a comment |Â
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I recently ran into a situation where a system was too out-of-memory to even run pkill or htop, or to even create a swap file.
(But somehow I could still SSH into the system, so at least I had a shell.)
I ended up getting lucky by noticing that I could run ps and kill if I don't run the login shell, but I'm wondering if I hadn't been lucky, what could I have possibly done to avoid rebooting, assuming I still had the login shell?
Is there e.g. to reserve a specific amount of memory for a particular executable to always be able to run? Or is there a way to kill processes from within Bash that doesn't require a fork?
linux bash out-of-memory system-recovery
asked Nov 11 '17 at 20:02
Mehrdad
1,12831430
I recently ran into a situation where a system was too out-of-memory to even run pkill or htop, or to even create a swap file.
(But somehow I could still SSH into the system, so at least I had a shell.)
I ended up getting lucky by noticing that I could run ps and kill if I don't run the login shell, but I'm wondering if I hadn't been lucky, what could I have possibly done to avoid rebooting, assuming I still had the login shell?
Is there e.g. to reserve a specific amount of memory for a particular executable to always be able to run? Or is there a way to kill processes from within Bash that doesn't require a fork?
linux bash out-of-memory system-recovery
asked Nov 11 '17 at 20:02
Mehrdad
1,12831430
asked Nov 11 '17 at 20:02
Mehrdad
1,12831430
asked Nov 11 '17 at 20:02
Mehrdad
1,12831430
asked Nov 11 '17 at 20:02
Mehrdad
1,12831430
1,12831430
look at this: unix.stackexchange.com/questions/44985/…
– Arpit Agarwal
Nov 11 '17 at 20:40
Probably this will help you: how to create a user with limited ram usage
– FaxMax
Nov 11 '17 at 20:43
add a comment |Â
look at this: unix.stackexchange.com/questions/44985/…
– Arpit Agarwal
Nov 11 '17 at 20:40
Probably this will help you: how to create a user with limited ram usage
– FaxMax
Nov 11 '17 at 20:43
look at this: unix.stackexchange.com/questions/44985/…
– Arpit Agarwal
Nov 11 '17 at 20:40
look at this: unix.stackexchange.com/questions/44985/…
– Arpit Agarwal
Nov 11 '17 at 20:40
Probably this will help you: how to create a user with limited ram usage
– FaxMax
Nov 11 '17 at 20:43
Probably this will help you: how to create a user with limited ram usage
– FaxMax
Nov 11 '17 at 20:43
add a comment |Â
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look at this: unix.stackexchange.com/questions/44985/…
– Arpit Agarwal
Nov 11 '17 at 20:40
Probably this will help you: how to create a user with limited ram usage
– FaxMax
Nov 11 '17 at 20:43