https://bugzilla.kernel.org/show_bug.cgi?id=201685 --- Comment #224 from Manfred (Manfred.Knick@xxxxxxxxxxx) --- (In reply to Guenter Roeck from comment #223) > There is a key difference, though: With 4.18.20, cfq is active. > > $ cat /sys/block/sd*/queue/scheduler > noop deadline [cfq] > noop deadline [cfq] > > In 4.19, cfq is not available <--- ? # grep -i cfq config-4.19.3-gentoo CONFIG_IOSCHED_CFQ=y < --- ! # CONFIG_CFQ_GROUP_IOSCHED is not set CONFIG_DEFAULT_CFQ=y CONFIG_DEFAULT_IOSCHED="cfq" did not run me into trouble. Being a production machine, reverted it to ### INFO: # uname -a Linux XXX 4.18.20-gentoo #1 SMP Wed Nov 28 12:30:28 CET 2018 x86_64 Intel(R) Xeon(R) CPU E3-1276 v3 @ 3.60GHz GenuineIntel GNU/Linux Running Gentoo "stable" (with *very* few exceptions) # equery list gcc [IP-] [ ] sys-devel/gcc-7.3.0-r3:7.3.0 Exploiting disks directly attached @ ASUS Workstation MoBo P9D-WS : Samsung SSD, multiple S-ATA HDD fom 5000 GB up to 6 TB, ... as well as e.g. Adaptec SCSI Raid-1, 2 x WD 500 running stable till this evening. -- You are receiving this mail because: You are watching the assignee of the bug.
