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After recompiling a kernel binary image from source code, a kernel panic while booting the resulting kernel is a common problem if the kernel was not correctly configured, compiled or installed. [8] Add-on hardware or malfunctioning RAM could also be sources of fatal kernel errors during start up, due to incompatibility with the OS or a missing ...
A bad sector in computing is a disk sector on a disk storage unit that is unreadable. Upon taking damage, all information stored on that sector is lost. When a bad sector is found and marked, the operating system like Windows or Linux will skip it in the future. Bad sectors are a threat to information security in the sense of data remanence.
Outages were experienced worldwide, [2] [39] [40] reflecting the wide use of Microsoft Windows and CrowdStrike software by global corporations in numerous business sectors. [41] At the time of the incident, CrowdStrike said it had more than 24,000 customers, [42] including nearly 60% of Fortune 500 companies and more than half of the Fortune 1000.
Because Windows has an approximately 70% market share of desktop systems worldwide, that defect spread quickly. In a statement, CrowdStrike said the problem was immediately isolated “and a fix ...
Kernel Patch Protection is the technology that enforces these restrictions. It works by periodically checking to make sure that protected system structures in the kernel have not been modified. If a modification is detected, then Windows will initiate a bug check and shut down the system, [6] [8] with a blue screen and/or reboot. The ...
Many errors are detected and corrected by the hard disk drives using the ECC codes [17] which are stored on disk for each sector. If the disk drive detects multiple read errors on a sector it may make a copy of the failing sector on another part of the disk, by remapping the failed sector of the disk to a spare sector without the involvement of ...
[11] [12] The replacement of mcelog for Linux systems is rasdaemon. [9] [10] parsemce [14] is a Linux program by Dave Jones to decode MCEs from AMD K7 processors. mced [15] (mcedaemon) is a Linux program by Tim Hockin to gather MCEs from the kernel and alert interested applications. Note that it does not try to interpret the MCE data, it simply ...
Meltdown exploits a race condition, inherent in the design of many modern CPUs.This occurs between memory access and privilege checking during instruction processing. . Additionally, combined with a cache side-channel attack, this vulnerability allows a process to bypass the normal privilege checks that isolate the exploit process from accessing data belonging to the operating system and other ...