Sergey Senozhatsky <sergey.senozhatsky.work@xxxxxxxxx> writes: > Hi, > > 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 zswap.zpool=zbud > > 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 > .config Thanks for your information! I will try to reproduce it today! Best Regards, Huang, Ying > -ss -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
