Hi everyone,
I am trying to prevent the ehci_hcd kernel module to load at boot time.
Here's what I've tried so far:
1) Add the following line to /etc/modprobe.d/blacklist.conf (as suggested here):
2) Blacklisted the module by adding the following string to
3) Tried to blacklist the module... (0 Replies)
Hi gurus
Could anybody tell me which file is read by kernel to set its default system kernal parameters values in solaris. Here I am not taking about /etc/system file which is used to load kernal modules or to change any default system kernal parameter value
Is it /dev/kmem file or something... (1 Reply)
Hi, i'm another question:
I'm a directory /usr/data on my server sco unix 5.0.5:
# du /usr/data
4386948 /usr/data
I'm tried to connect to ftp directory /usr/data to this server and:
PANIC: k_trap - Kernel mode trap type 0x0000000E
Cannot dump 262040 pages to dumpdev hd(1/41):space... (3 Replies)
Hi All,
Is there a max number of slabs that can be used per kernel module? I'm having a tough time finding out that kind of information, but the array 'node_zonelists' (mmzone.h) has a size of 5. I just want to avoid buffer overruns and other bad stuff.
Cheers,
Brendan (4 Replies)
Dear colleagues,
One of my friend have a problem with c code. While compiling a c program it displays a message like
"array type has incomplete element type". Any body can provide a solution for it.
Jaganadh.G (1 Reply)
HELP is urgently required,
I run on SCO Unix 3 and this is the panic message that I get every time that I reboot 10U
k_trap - kernel mode trap type 0x0000000E
I have checked the swap already having the following results:
#swap -l
path dev swaplo blocks free... (3 Replies)
lcpu_attr(5) File Formats Manual lcpu_attr(5)NAME
lcpu_attr - dynamically enable or disable LCPU attribute of the default processor set
VALUES
Fail Safe
Default
the LCPU attribute of the default processor set is disabled
Allowed values
or
DESCRIPTION
This tunable dynamically enables or disables the logical processor (LCPU) attribute in the default processor set. On systems supporting
hyper-threading technology, each hyper-thread is represented as an LCPU.
When the LCPU attribute is enabled, the processor cores in the default processor have hyper-threading enabled. If the LCPU attribute is
disabled, the physical processors in the default processor set behave as single threaded processor cores.
See pset_setattr(2) for information about managing the LCPU attribute in processor sets other than the default processor set.
Who Is Expected to Change This Tunable?
System administrators that wish to change hyper-threading ability in the default processor set.
Restrictions on Changing
The tunable has no effect on platforms that do not have hyper-threading capability or systems with hyper-threading disabled at the firmware
level. On systems that support hyper-threading, the firmware feature must be enabled to dynamically enable/disable the LCPU attribute in
the default processor set.
When Should the Tunable Be Turned On?
The tunable should be turned on to enable the LCPU attribute in the default processor set to take advantage of hyper-threading. If the
applications running on the system see performance benefits, the LCPU attribute should remain enabled.
What Are the Side Effects of Turning the Tunable On?
Some workloads may experience performance degradation when the LCPU attribute is enabled.
When Should the Tunable Be Turned Off?
Some applications may experience performance degradation or may not see any performance benefits from using hyper-threading. In this case,
this tunable should be turned off.
What Are the Side Effects of Turning the Tunable Off?
With LCPU turned off, applications may not take advantage of hyper-threading.
What Other Tunables Should Be Changed at the Same Time?
None.
WARNINGS
All HP-UX kernel tunable parameters are release specific. This parameter may be removed or have its meaning changed in future releases of
HP-UX.
Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parameter values. After installation,
some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tun-
able values, consult the documentation for the kernel software being installed. For information about optional kernel software that was
factory installed on your system, see at
AUTHOR
was developed by HP.
SEE ALSO psrset(1M), pset_assign(2), pset_bind(2), pset_create(2), pset_ctl(2), pset_destroy(2), privgrp(4).
Tunable Kernel Parameters lcpu_attr(5)