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author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-01-24 21:49:18 +0100 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-01-24 21:49:18 +0100 |
commit | a32f7d1ad3744914273c6907204c2ab3b5d496a0 (patch) | |
tree | 1c5ae321ee85665707177547c07810ff7e09e1ab /Documentation/sysctl/kernel.txt | |
parent | [media] stv090x: On STV0903 do not set registers of the second path (diff) | |
parent | [media] uvcvideo: Set error_idx properly for S_EXT_CTRLS failures (diff) | |
download | linux-a32f7d1ad3744914273c6907204c2ab3b5d496a0.tar.xz linux-a32f7d1ad3744914273c6907204c2ab3b5d496a0.zip |
Merge branch 'v4l_for_linus' into staging/for_v3.9
* v4l_for_linus: (464 commits)
[media] uvcvideo: Set error_idx properly for S_EXT_CTRLS failures
[media] uvcvideo: Cleanup leftovers of partial revert
[media] uvcvideo: Return -EACCES when trying to set a read-only control
Linux 3.8-rc3
mm: reinstante dropped pmd_trans_splitting() check
cred: Remove tgcred pointer from struct cred
drm/ttm: fix fence locking in ttm_buffer_object_transfer
ARM: clps711x: Fix bad merge of clockevents setup
ARM: highbank: save and restore L2 cache and GIC on suspend
ARM: highbank: add a power request clear
ARM: highbank: fix secondary boot and hotplug
ARM: highbank: fix typos with hignbank in power request functions
ARM: dts: fix highbank cpu mpidr values
ARM: dts: add device_type prop to cpu nodes on Calxeda platforms
drm/prime: drop reference on imported dma-buf come from gem
xen/netfront: improve truesize tracking
ARM: mx5: Fix MX53 flexcan2 clock
ARM: OMAP2+: am33xx-hwmod: Fix wrongly terminated am33xx_usbss_mpu_irqs array
sctp: fix Kconfig bug in default cookie hmac selection
EDAC: Cleanup device deregistering path
...
Conflicts:
drivers/media/pci/dm1105/dm1105.c
drivers/media/platform/soc_camera/mx2_camera.c
Diffstat (limited to 'Documentation/sysctl/kernel.txt')
-rw-r--r-- | Documentation/sysctl/kernel.txt | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt index 2907ba6c3607..ccd42589e124 100644 --- a/Documentation/sysctl/kernel.txt +++ b/Documentation/sysctl/kernel.txt @@ -38,6 +38,7 @@ show up in /proc/sys/kernel: - l2cr [ PPC only ] - modprobe ==> Documentation/debugging-modules.txt - modules_disabled +- msg_next_id [ sysv ipc ] - msgmax - msgmnb - msgmni @@ -62,7 +63,9 @@ show up in /proc/sys/kernel: - rtsig-max - rtsig-nr - sem +- sem_next_id [ sysv ipc ] - sg-big-buff [ generic SCSI device (sg) ] +- shm_next_id [ sysv ipc ] - shm_rmid_forced - shmall - shmmax [ sysv ipc ] @@ -320,6 +323,22 @@ to false. ============================================================== +msg_next_id, sem_next_id, and shm_next_id: + +These three toggles allows to specify desired id for next allocated IPC +object: message, semaphore or shared memory respectively. + +By default they are equal to -1, which means generic allocation logic. +Possible values to set are in range {0..INT_MAX}. + +Notes: +1) kernel doesn't guarantee, that new object will have desired id. So, +it's up to userspace, how to handle an object with "wrong" id. +2) Toggle with non-default value will be set back to -1 by kernel after +successful IPC object allocation. + +============================================================== + nmi_watchdog: Enables/Disables the NMI watchdog on x86 systems. When the value is @@ -542,6 +561,19 @@ are doing anyway :) ============================================================== +shmall: + +This parameter sets the total amount of shared memory pages that +can be used system wide. Hence, SHMALL should always be at least +ceil(shmmax/PAGE_SIZE). + +If you are not sure what the default PAGE_SIZE is on your Linux +system, you can run the following command: + +# getconf PAGE_SIZE + +============================================================== + shmmax: This value can be used to query and set the run time limit |