Release Notes|Kernel parameter changes
Applies to SUSE Linux Enterprise Server 15 SP2

A Kernel parameter changes

Warning
Warning

This list of changes may not be exhaustive.

A1 During 15 SP2

These Linux kernel parameters have been changed during SLES 15 SP2.

SettingPrevious valueNew valuePackageMore details

net.ipv6.conf.lo.accept_redirects

0

1

wicked-0.6.68-3.8.1

Bug 1181163

net.ipv6.conf.lo.use_tempaddr

1

-1

wicked-0.6.68-3.8.1

Bug 1181163

A2 Since 15 SP1

These Linux kernel parameters have been changed since SLES 15 SP1.

SettingPrevious valueNew valuePackageMore details

sysctl_net_ipv4_conf_all_accept_redirects

1

0

  

sysctl_net_ipv6_conf_all_accept_redirects

1

0

  

sysctl_net_ipv4_conf_default_accept_redirects

1

0

  

sysctl_net_ipv4_conf_all_rp_filter

1

2

  

sysctl_net_ipv4_conf_default_accept_source_route

1

0

  

sysctl_net_ipv4_neigh_default_unres_qlen

31

101

  

sysctl_net_ipv6_neigh_default_unres_qlen

31

101

  

sysctl_net_ipv4_neigh_default_unres_qlen_bytes

65536

212992

  

sysctl_net_ipv6_neigh_default_unres_qlen_bytes

65536

212992

  

sysctl_net_ipv4_ping_group_range

1 0

0 2147483647

  

sysctl_net_ipv4_tcp_allowed_congestion_control

    

sysctl_net_ipv4_tcp_available_congestion_control

    

sysctl_net_ipv4_tcp_limit_output_bytes

262144

1048576

  

sysctl_net_ipv4_tcp_max_syn_backlog

2048

4096

  

sysctl_net_ipv4_tcp_tw_reuse

2

0

  

sysctl_net_ipv4_xfrm4_gc_thresh

2147483647

32768

  

sysctl_net_ipv6_conf_lo_accept_redirects

0

1

wicked

 

sysctl_net_ipv6_conf_lo_use_tempaddr

1

-1

wicked

 

sysctl_net_ipv6_xfrm6_gc_thresh

2147483647

32768

  

sysctl_user_max_inotify_instances

128

191651

  

sysctl_user_max_inotify_watches

65536

128

  

sysctl_vm_hugepages_treat_as_movable

    

sysctl_vm_lowmem_reserve_ratio

    

sysctl_vm_nr_pdflush_threads

    

sysctl_vm_numa_zonelist_order

1

0

  

sysctl_vm_numa_zonelist_order

default

Node

  

sysctl_vm_watermark_boost_factor

10000

15000