Linux kernel watchpoint
NettetCrosspoint watchpoint-based events (special “event” value 0xfe) require “xp” and “vc” as above plus “port” (device port index), “dir” (transmit/receive direction), comparator values (“cmp_l” and “cmp_h”) and “mask”, being index of the comparator mask. NettetWe added the following 3 new ptrace requests. 1. PTRACE_PPC_GETHWDEBUGINFO. Query for GDB to discover the hardware debug features. The main info to be returned …
Linux kernel watchpoint
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Nettet19. aug. 2024 · One interesting addition to the Linux kernel is the Kernel Concurrency Santizier, which is a sampling watchpoint-based dynamic race detector that can detect arising flaws in kernel code. As of ... NettetPtrace — The Linux Kernel documentation Ptrace ¶ GDB intends to support the following hardware debug features of BookE processors: 4 hardware breakpoints (IAC) 2 …
NettetFig. 3 The basic principle of setting a code breakpoint and watchpoint in DRDDR. Fig. 4 Race1 in ext2 file system. Fig. 5 Race2 in eCryptfs system. Table I Description of the Linux kernel races detected by DRDDR. Property Race1 Race2 Location ext2 file system eCryptfs system Kernel version 2.6.38-rc8 3.0-rc1 Type Atomicity violation Order violation NettetDownload. Download a single patch combining user-space probes, kernel watchpoint probes, and a Dprobes interface for Linux 2.6.9-final. Download the full set of Kprobes …
NettetOn arm64 there can be a maximum of 16 watchpoints and 16 hardware breakpoints, however specific implementations of arm64 can (and often will) offer fewer. All of the … NettetA kprobe can be inserted on virtually any instruction in the kernel. A return probe fires when a specified function returns. In the typical case, Kprobes-based instrumentation is packaged as a kernel module. The module’s init function installs (“registers”) one or more probes, and the exit function unregisters them.
NettetSince we're at it, we added other useful info that the kernel can return to GDB: this query will return the number of hardware breakpoints, hardware watchpoints and whether it …
NettetThe Kernel Concurrency Sanitizer (KCSAN) The Kernel Concurrency Sanitizer (KCSAN) is a dynamic race detector, which relies on compile-time instrumentation, and uses a … ips virrey solisNettet2. nov. 2013 · It demonstrates that the hardware watchpoint tracing can be achieved in two ways: either using the perf program, which can probe the driver unchanged; or by … ips vishwas nangare patil speechNettetLinux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. ips vishal movieNettetThere are currently 3 variants: a reduced 32-bit version (LA32R), a standard 32-bit version (LA32S) and a 64-bit version (LA64). There are 4 privilege levels (PLVs) defined in … ips vishwas nangare patil rankNettet24. jan. 2011 · Join Ksplice and work on technology that most people will tell you is impossible: updating the Linux kernel while it is running. Help us develop the software and infrastructure to bring rebootless kernel updates to Linux, as well as new operating system kernels and other parts of the software stack. ips visionary intelligenceNettet15 timer siden · On Thursday, Eduardo (sirdarckcat) Vela Nava, from Google's product security response team, disclosed a Spectre-related flaw in version 6.2 of the Linux kernel. The bug, designated medium severity, was initially reported to cloud service providers – those most likely to be affected – on December 31, 2024, and was patched … ips volunteer formNettetIf the Linux kernel determines that an unblocked signal is pending for a process, then, at the next transition back to user mode in that process (e.g., upon return from a system call or when the process is rescheduled onto the CPU), it creates a new frame on the user-space stack where it saves various pieces of process context (processor status word, … ips vs amoled bagus mana