diff options
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index eacb2e0397ae..1de833556d22 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -829,6 +829,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted. CONFIG_DEBUG_PAGEALLOC, hence this option will not help tracking down these problems. + debug_pagealloc= + [KNL] When CONFIG_DEBUG_PAGEALLOC is set, this + parameter enables the feature at boot time. In + default, it is disabled. We can avoid allocating huge + chunk of memory for debug pagealloc if we don't enable + it at boot time and the system will work mostly same + with the kernel built without CONFIG_DEBUG_PAGEALLOC. + on: enable the feature + debugpat [X86] Enable PAT debugging decnet.addr= [HW,NET] @@ -1228,9 +1237,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. multiple times interleaved with hugepages= to reserve huge pages of different sizes. Valid pages sizes on x86-64 are 2M (when the CPU supports "pse") and 1G - (when the CPU supports the "pdpe1gb" cpuinfo flag) - Note that 1GB pages can only be allocated at boot time - using hugepages= and not freed afterwards. + (when the CPU supports the "pdpe1gb" cpuinfo flag). hvc_iucv= [S390] Number of z/VM IUCV hypervisor console (HVC) terminal devices. Valid values: 0..8 @@ -1369,6 +1376,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted. Formats: { "ima" | "ima-ng" } Default: "ima-ng" + ima_template_fmt= + [IMA] Define a custom template format. + Format: { "field1|...|fieldN" } + ima.ahash_minsize= [IMA] Minimum file size for asynchronous hash usage Format: <min_file_size> Set the minimal file size for using asynchronous hash. @@ -2506,6 +2517,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted. OSS [HW,OSS] See Documentation/sound/oss/oss-parameters.txt + page_owner= [KNL] Boot-time page_owner enabling option. + Storage of the information about who allocated + each page is disabled in default. With this switch, + we can turn it on. + on: enable the feature + panic= [KNL] Kernel behaviour on panic: delay <timeout> timeout > 0: seconds before rebooting timeout = 0: wait forever @@ -3434,6 +3451,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted. neutralize any effect of /proc/sys/kernel/sysrq. Useful for debugging. + tcpmhash_entries= [KNL,NET] + Set the number of tcp_metrics_hash slots. + Default value is 8192 or 16384 depending on total + ram pages. This is used to specify the TCP metrics + cache size. See Documentation/networking/ip-sysctl.txt + "tcp_no_metrics_save" section for more details. + tdfx= [HW,DRM] test_suspend= [SUSPEND][,N] |