[text] it allows mode of video boot to be set during run time. [/text] SHELL SESSION [bash] $pwd /proc/sys/kernel $sudo cat ac acct acpi_video_flags $sudo cat acpi_video_flags 0 $ [/bash] LINKS https://www.kernel.org/doc/Documentation/power/video.txt https://www.kernel.org/doc/Documentation/sysctl/kernel.txt
Tag Archives: kernel
acct for process accounting
ABOUT process accounting Process accounting is a security method in which an administrator may keep track of system resources used and their allocation among users, provide for system monitoring, and minimally track a user’s commands. Process accounting has both positive and negative points. SPECIFIC EXPLANATION [text] acct: highwater lowwater frequency If BSD-style process accounting is …
How to contribute (was Re: Kernelnewbies Digest, Vol 77, Issue 7
https://lists.kernelnewbies.org/pipermail/kernelnewbies/2017-April/017765.html
parameter panic – the number of seconds the kernel waits before rebooting on a panic
GNU/Linux PARAMETER root>cat /proc/sys/kernel/panic 0 root>echo 60 > /proc/sys/kernel/panic root>cat /proc/sys/kernel/panic 60 root> PARAMETER EXPLANATION http://en.wikipedia.org/wiki/Kernel_panic PARAMETER FUNCTION panic: The value in this file represents the number of seconds the kernel waits before rebooting on a panic. When you use the software watchdog, the recommended setting is 60. PARAMETER CODE CONNECTION http://lxr.linux.no/linux+v3.12.5/kernel/panic.c
How To Apply a Patch To The Linux Kernel Stable Tree
[youtube https://www.youtube.com/watch?v=6zUVS4kJtrA?rel=0&w=560&h=315]
How Linux is Built
[youtube https://www.youtube.com/watch?v=yVpbFMhOAwE?rel=0&w=560&h=315]
Linux KERNEL TESTING signaltest
ABOUT Signal(IPC) Signals are a limited form of inter-process communication (IPC), typically used in Unix, Unix-like, and other POSIX-compliant operating systems. A signal is an asynchronous notification sent to a process or to a specific thread within the same process in order to notify it of an event that occurred. Signals originated in 1970s Bell …
Linux KERNEL TESTING cyclictest DETAIL
ABOUT SOFTWARE TESTING Software testing is an investigation conducted to provide stakeholders with information about the quality of the software product or service under test.[1] Software testing can also provide an objective, independent view of the software to allow the business to appreciate and understand the risks of software implementation. Test techniques include the process …
Advanced Programmable Interrupt Controller
Connected From This APIC In computing, an Advanced Programmable Interrupt Controller (APIC) is a more complex Programmable Interrupt Controller (PIC) than Intel’s original types such as the 8259A. APIC devices permit more complex priority models, and Advanced IRQ (Interrupt Request) management. In computing, a programmable interrupt controller (PIC) is a device that is used to …
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Kernel Panic….
Call Trace: {panic+483} {_spin_unlock_ irq+12} {__down_read+60} {_spin_lock_irqsave+ 9} {__up_read+25} {blocking_notifier_cal l_chain+70} {do_exit+141} {kernel_math_error+0} <ffffffff80270dfc}{do_invalid_op+173} {:aacraid:aac_intr _normal+463} <fffffff80269ece}{spin_lock_irqsave+9} {printk+82} {error_exit+0} {vgacon_cursor+0} {:aacraid:aac_intr_normal+473} {:aacr aid:aac_intr_normal+473} {:aacraid:aac_rx_intr+55} {handle_IRQ _event+41} {__do_IRQ+154} {do_IRQ+60} {ret_from_intr+0} (3) astrax:/home/pgperez> (3) astrax:/home/pgperez> cat error {:aacraid:aac_rx_intr+55} {handle_IRQ_event+41} {__do_IRQ+154} {do_IRQ+60} {ret_from_intr+0} link : https://bugzilla.redhat.com/show_bug.cgi?format=multiple&id=205778