diff options
Diffstat (limited to 'Documentation/kernel-parameters.txt')
-rw-r--r-- | Documentation/kernel-parameters.txt | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index f4a04c0c7edc..c357a31411cd 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt | |||
@@ -626,6 +626,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted. | |||
626 | disable= [IPV6] | 626 | disable= [IPV6] |
627 | See Documentation/networking/ipv6.txt. | 627 | See Documentation/networking/ipv6.txt. |
628 | 628 | ||
629 | disable_ddw [PPC/PSERIES] | ||
630 | Disable Dynamic DMA Window support. Use this if | ||
631 | to workaround buggy firmware. | ||
632 | |||
629 | disable_ipv6= [IPV6] | 633 | disable_ipv6= [IPV6] |
630 | See Documentation/networking/ipv6.txt. | 634 | See Documentation/networking/ipv6.txt. |
631 | 635 | ||
@@ -868,6 +872,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted. | |||
868 | If specified, z/VM IUCV HVC accepts connections | 872 | If specified, z/VM IUCV HVC accepts connections |
869 | from listed z/VM user IDs only. | 873 | from listed z/VM user IDs only. |
870 | 874 | ||
875 | keep_bootcon [KNL] | ||
876 | Do not unregister boot console at start. This is only | ||
877 | useful for debugging when something happens in the window | ||
878 | between unregistering the boot console and initializing | ||
879 | the real console. | ||
880 | |||
871 | i2c_bus= [HW] Override the default board specific I2C bus speed | 881 | i2c_bus= [HW] Override the default board specific I2C bus speed |
872 | or register an additional I2C bus that is not | 882 | or register an additional I2C bus that is not |
873 | registered from board initialization code. | 883 | registered from board initialization code. |
@@ -1580,16 +1590,25 @@ bytes respectively. Such letter suffixes can also be entirely omitted. | |||
1580 | of returning the full 64-bit number. | 1590 | of returning the full 64-bit number. |
1581 | The default is to return 64-bit inode numbers. | 1591 | The default is to return 64-bit inode numbers. |
1582 | 1592 | ||
1593 | nfs.nfs4_disable_idmapping= | ||
1594 | [NFSv4] When set, this option disables the NFSv4 | ||
1595 | idmapper on the client, but only if the mount | ||
1596 | is using the 'sec=sys' security flavour. This may | ||
1597 | make migration from legacy NFSv2/v3 systems easier | ||
1598 | provided that the server has the appropriate support. | ||
1599 | The default is to always enable NFSv4 idmapping. | ||
1600 | |||
1583 | nmi_debug= [KNL,AVR32,SH] Specify one or more actions to take | 1601 | nmi_debug= [KNL,AVR32,SH] Specify one or more actions to take |
1584 | when a NMI is triggered. | 1602 | when a NMI is triggered. |
1585 | Format: [state][,regs][,debounce][,die] | 1603 | Format: [state][,regs][,debounce][,die] |
1586 | 1604 | ||
1587 | nmi_watchdog= [KNL,BUGS=X86] Debugging features for SMP kernels | 1605 | nmi_watchdog= [KNL,BUGS=X86] Debugging features for SMP kernels |
1588 | Format: [panic,][num] | 1606 | Format: [panic,][nopanic,][num] |
1589 | Valid num: 0 | 1607 | Valid num: 0 |
1590 | 0 - turn nmi_watchdog off | 1608 | 0 - turn nmi_watchdog off |
1591 | When panic is specified, panic when an NMI watchdog | 1609 | When panic is specified, panic when an NMI watchdog |
1592 | timeout occurs. | 1610 | timeout occurs (or 'nopanic' to override the opposite |
1611 | default). | ||
1593 | This is useful when you use a panic=... timeout and | 1612 | This is useful when you use a panic=... timeout and |
1594 | need the box quickly up again. | 1613 | need the box quickly up again. |
1595 | 1614 | ||
@@ -1813,6 +1832,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted. | |||
1813 | perfmon on Intel CPUs instead of the | 1832 | perfmon on Intel CPUs instead of the |
1814 | CPU specific event set. | 1833 | CPU specific event set. |
1815 | 1834 | ||
1835 | oops=panic Always panic on oopses. Default is to just kill the process, | ||
1836 | but there is a small probability of deadlocking the machine. | ||
1837 | This will also cause panics on machine check exceptions. | ||
1838 | Useful together with panic=30 to trigger a reboot. | ||
1839 | |||
1816 | OSS [HW,OSS] | 1840 | OSS [HW,OSS] |
1817 | See Documentation/sound/oss/oss-parameters.txt | 1841 | See Documentation/sound/oss/oss-parameters.txt |
1818 | 1842 | ||
@@ -2444,6 +2468,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted. | |||
2444 | <deci-seconds>: poll all this frequency | 2468 | <deci-seconds>: poll all this frequency |
2445 | 0: no polling (default) | 2469 | 0: no polling (default) |
2446 | 2470 | ||
2471 | threadirqs [KNL] | ||
2472 | Force threading of all interrupt handlers except those | ||
2473 | marked explicitely IRQF_NO_THREAD. | ||
2474 | |||
2447 | topology= [S390] | 2475 | topology= [S390] |
2448 | Format: {off | on} | 2476 | Format: {off | on} |
2449 | Specify if the kernel should make use of the cpu | 2477 | Specify if the kernel should make use of the cpu |