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Applies to SUSE Linux Enterprise Server 15 SP3

A Kernel parameter changes

Warning
Warning

This list of changes may not be exhaustive.

A.1 During 15 SP3

These Linux kernel parameters have been changed during SLES 15 SP3.

SettingPrevious valueNew valuePackageMore details

sysctl_net_ipv6_conf_lo_accept_redirects

0

1

wicked-0.6.68-150300.4.5.1

Bug 1181163

sysctl_net_ipv6_conf_lo_use_tempaddr

1

-1

wicked-0.6.68-150300.4.5.1

Bug 1181163

A.2 Since 15 SP2

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

SettingPrevious valueNew valuePackageMore details

sysctl_fs_file-max

490215

9223372036854775807

 

Bug 1180823

sysctl_fs_suid_dumpable

0

2

systemd 246

Bug 1183339

sysctl_kernel_cap_last_cap

37

39

 

Bug 1183339

sysctl_kernel_core_pattern

|/usr/lib/systemd/systemd-coredump %P %u %g %s %t %c %e

|/usr/lib/systemd/systemd-coredump %P %u %g %s %t %c %h

 

Bug 1183450

sysctl_kernel_core_pipe_limit

0

16

 

Bug 1183450

sysctl_kernel_printk_devkmsg

ratelimit

on

systemd 248

Bug 1183339

sysctl_kernel_suid_dumpable

0

2

systemd 246

Bug 1183450

sysctl_kernel_usermodehelper_bset

63

255

 

Bug 1183339

sysctl_kernel_usermodehelper_inheritable

63

255

 

Bug 1183339

sysctl_net_core_bpf_jit_kallsyms

0

1

 

Bug 1183339

sysctl_net_ipv4_ping_group_range

1 0

0 2147483647 [a]

  

sysctl_net_ipv4_tcp_available_ulp

''

espintcp

 

Bug 1181745

sysctl_net_ipv4_tcp_mem

22689 30255 45378

22683 30246 45366 [b]

 

Bug 1183339

sysctl_net_ipv4_udp_mem

45381 60510 90762

45369 60492 90738

 

Bug 1183339

sysctl_fs_epoll_max_user_watches

410398

410275 [b]

 

Bug 1183339

sysctl_kernel_threads-max

15650

15655 [b]

 

Bug 1183339

sysctl_user_max_cgroup_namespaces

7827

7825 [b]

 

Bug 1183339

sysctl_user_max_ipc_namespaces

7827

7825 [b]

 

Bug 1183339

sysctl_user_max_mnt_namespaces

7827

7825 [b]

 

Bug 1183339

sysctl_user_max_net_namespaces

7827

7825 [b]

 

Bug 1183339

sysctl_user_max_pid_namespaces

7827

7825 [b]

 

Bug 1183339

sysctl_user_max_time_namespaces

7827

7825 [b]

 

Bug 1183339

sysctl_user_max_user_namespaces

7827

7825 [b]

 

Bug 1183339

sysctl_user_max_uts_namespaces

7827

7825 [b]

 

Bug 1183339

[b] All sysctl parameters based on the total amount of memory or available memory can vary between service packs or even maintenance updates. Small variations are to be expected. Either the accounting might have changed for the former, or more early allocations are necessary for the latter.

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