Sergey Senozhatsky <sergey.senozhatsky.w...@gmail.com> writes:
> On (02/04/18 22:21), huang ying wrote:
>> >> After disabling zswap no crashes at all.
>> >> /etc/systemd/swap.conf
>> >> zswap_enabled=1
>> >> zswap_compressor=lz4 # lzo lz4
>> >> zswap_max_pool_percent=25 # 1-99
>> >> zswap_zpool=zbud # zbud z3fold
>> Can you give me some detailed steps to reproduce this? Like the
>> kernel configuration file, swap configuration, etc. Any kernel
>> WARNING during testing? Can you reproduce this with a real swap
>> device instead of zswap?
> No warnings (at least no warnings with my .config). Tested it only with
> zram based swap (I'm running swap-less x86 systems, so zram is the easiest
> way). It seems it's THP + frontswap that makes things unstable, rather
> than THP + swap.
> Kernel zswap boot params:
> zswap.enabled=1 zswap.compressor=lz4 zswap.max_pool_percent=10
> Then I add a 4G zram swap and run a silly memory hogger. I don't think
> you'll have any problems reproducing it, but just in case I attached my
Thanks for your information! I will try to reproduce it today!