[dm-devel] System freezes after OOM

[Ondrej Kozina]

On 07/14/2016 05:31 PM, Michal Hocko wrote:
> On Thu 14-07-16 16:08:28, Ondrej Kozina wrote:
> [...]
>> As Mikulas pointed out, this doesn't work. The system froze as well with the
>> patch above. Will try to tweak the patch with Mikulas's suggestion...
>
> Thank you for testing! Do you happen to have traces of the frozen
> processes? Does the flusher still gets throttled because the bias it
> gets is not sufficient. Or does it get throttled at a different place?
>

Sure. Here it is (including sysrq+t and sysrq+w output): 
https://okozina.fedorapeople.org/bugs/swap_on_dmcrypt/4.7.0-rc7+/1/4.7.0-rc7+.log

In a directory with the log there's also a patch the kernel was compiled 
with.

Ondra