Re: Can not build kernel on 1GB VM

In reply to: Michael Wayne : "Re: Can not build kernel on 1GB VM"
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From: Wojciech Puchar <wojtek_at_puchar.net>
Date: Fri, 13 May 2022 11:22:43 UTC

> On Tue, Apr 19, 2022 at 08:52:00AM +0200, Wojciech Puchar wrote:
>> try
>>
>> sysctl -w vm.overcommit=1
>
> No improvement.


So it's not because memory is overallocated by program.


>
>
>> On Fri, 15 Apr 2022, Michael Wayne wrote:
>>> the machine ran out of swap. with a bunch of messages like:
>>>   Apr 15 12:11:26 g1 kernel: swap_pager: indefinite wait buffer: bufobj: 0, blkno: 240593, size: 4096
>>>   Apr 15 12:11:35 g1 kernel: swap_pager: indefinite wait buffer: bufobj: 0, blkno: 236224, size: 16384
>>>   Apr 15 12:11:37 g1 kernel: swap_pager: indefinite wait buffer: bufobj: 0, blkno: 245, size: 12288
>>>   Apr 15 12:11:46 g1 kernel: swap_pager: indefinite wait buffer: bufobj: 0, blkno: 240593, size: 4096
>>>   Apr 15 12:11:55 g1 kernel: swap_pager: indefinite wait buffer: bufobj: 0, blkno: 236224, size: 16384
>>>   Apr 15 12:11:57 g1 kernel: swap_pager: indefinite wait buffer: bufobj: 0, blkno: 245, size: 12288

This message is NOT about running out of space! (sorry i didn't notice it 
before).

this is when I/O is stalled too long.