Bus Error In Linux Terminal
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How To Solve Bus Error In Linux
the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation linux bus error core dumped Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it linux bus error message only takes a minute: Sign up “Bus error” system error [closed] up vote 6 down vote favorite 2 I am running a linux tool which uses some system libraries as we as some custom libraries. The purpose of the tool is to access/configure a PCI-express cards that has some firmware running on it. I made some slight change to code,nothing
Bus Error Linux Server
significant and suddenly got a "Bus error". I know that is is caused by unaligned memory access, but in the above context is it more likely to be in the firmware memory, i.e a firmware read across the PCI-express bus. I certainly don't believe that my small software change could have caused the "Bus error". Another surprising fact is that a different version of software is working well with this firmware. Can anyone throw some light on the issue. linux debugging bus share|improve this question edited May 3 '11 at 13:44 skaffman 276k62614652 asked May 3 '11 at 13:40 liv2hak 3,8391659106 closed as off-topic by Ciro Santilli 烏坎事件2016六四事件 法轮功, Yu Hao, Chris Loonam, John Pirie, Rob Aug 7 '15 at 16:35 This question appears to be off-topic. The users who voted to close gave this specific reason:"Questions seeking debugging help ("why isn't this code working?") must include the desired behavior, a specific problem or error and the shortest code necessary to reproduce it in the question itself. Questions without a clear problem statement are not useful to other readers
challenged and removed. (July 2015) (Learn how and when to remove this template message) In computing, a bus error is a fault raised by hardware, notifying an operating system (OS) that a process is trying sigbus bus error to access memory that the CPU cannot physically address: an invalid address for bus error vs segmentation fault the address bus, hence the name. In modern use on most architectures these are much rarer than segmentation faults, which
Ubuntu Bus Error
occur primarily due to memory access violations: problems in the logical address or permissions. On POSIX-compliant platforms, bus errors usually result in the SIGBUS signal being sent to the process that caused the error. http://stackoverflow.com/questions/5870353/bus-error-system-error SIGBUS can also be caused by any general device fault that the computer detects, though a bus error rarely means that the computer hardware is physically broken—it is normally caused by a bug in a program's source code.[citation needed] Bus errors may also be raised for certain other paging errors; see below. Contents 1 Causes 1.1 Non-existent address 1.2 Unaligned access 1.3 Paging errors 2 Example 3 https://en.wikipedia.org/wiki/Bus_error References Causes[edit] There are at least three main causes of bus errors: Non-existent address[edit] Software instructs the CPU to read or write a specific physical memory address. Accordingly, the CPU sets this physical address on its address bus and requests all other hardware connected to the CPU to respond with the results, if they answer for this specific address. If no other hardware responds, the CPU raises an exception, stating that the requested physical address is unrecognized by the whole computer system. Note that this only covers physical memory addresses. Trying to access an undefined virtual memory address is generally considered to be a segmentation fault rather than a bus error, though if the MMU is separate, the processor can't tell the difference. Unaligned access[edit] Most CPUs are byte-addressable, where each unique memory address refers to an 8-bit byte. Most CPUs can access individual bytes from each memory address, but they generally cannot access larger units (16 bits, 32 bits, 64 bits and so on) without these units being "aligned" to a specific boundary (the x86 platform being a notable exception). For example, if multi-byte accesses must be 16 bit-aligned, addresses (given in bytes) at 0, 2, 4,
dumped)" Pages: 1 #1 2013-05-08 22:28:13 gay Member Registered: 2012-12-16 Posts: 73 A hint regarding applications failing with: "Bus error (core dumped)" This happens to me sometimes, for the solution see at the end of this posting after the description of the error. From GUII try to start https://bbs.archlinux.org/viewtopic.php?id=162972 an application (it might be that this only concerns gtk applications such as evince & gthumb but I don't know). The application does not start, instead I am told by my GUI (e17) 'XXXX (the application) stopped running unexpectedly. http://askubuntu.com/questions/771899/pcie-bus-error-severity-corrected There was no error message. This error log will be saved as /home/...'. This error message matches the various joke error messages concocted by Microsoft in unhelpfulness. The log is not saved.From TerminalI try to start it from the bus error terminal. The terminal tells me 'Bus error (core dumped)'. Nothing more. I could not find any coredump - though the journalctl log does at least know about this: "May 09 02:03:07 xxxxxx systemd-coredump[9439]: Process 9436 (XXXX) dumped core." Running the application with strace is also not very helpful, though it hints that it all has to do with dconf: "open("/etc/dconf/profile/user", O_RDONLY) = -1 ENOENT (No such file or directory) (...) open("/home/xxxxx/.config/dconf/user", O_RDONLY) = 11"Google searches etc.Not helpful. But then error in linux again: who is going to talk about google any more in just a couple of years.Solutionremove /home/
communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Ask Ubuntu Questions Tags Users Badges Unanswered Ask Question _ Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top PCIe Bus error severity=Corrected up vote 2 down vote favorite I have a new HP Pavilion Gaming Notebook and a new installation of Ubuntu 16.04. When I press Ctrl + Alt + F1 I go start seeing the errors shown in the following image and it doesn't allow me to interact with the console: I also see these errors for a while everytime I boot. I need to do Ctrl + Alt + F1 to access a non graphical terminal to install some Nvidia drivers. What's going on? What's causing the problem seems to be: 00:1c.5 PCI bridge [0604]: Intel Corporation Sunrise Point-H PCI Express Root Port #6 [8086:a115] (rev f1) jpiabrantes@joao:~$ lspci -nn 00:00.0 Host bridge [0600]: Intel Corporation Sky Lake Host Bridge/DRAM Registers [8086:1910] (rev 07) 00:01.0 PCI bridge [0604]: Intel Corporation Sky Lake PCIe Controller (x16) [8086:1901] (rev 07) 00:02.0 VGA compatible controller [0300]: Intel Corporation Skylake Integrated Graphics [8086:191b] (rev 06) 00:04.0 Signal processing controller [1180]: Intel Corporation Skylake Processor Thermal Subsystem [8086:1903] (rev 07) 00:14.0 USB controller [0c03]: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller [8086:a12f] (rev 31) 00:14.2 Signal processing controller [1180]: Intel Corporation Sunrise Point-H Thermal subsystem [8086:a131] (rev 31) 00:16.0 Communication controller [0780]: Intel Corporation Sunrise Point-H CSME HECI #1 [8086:a13a] (rev 31) 00:17.0 SATA controller [0106]: Intel Corporation Sunrise Point-H SATA Controller [AHCI mode] [8086:a103] (rev 31) 00:1c.0 PCI bridge [0604]: Intel Corporation Sunrise Point-H PCI Express Root Port #5 [8086:a114] (rev f1) 00:1c.5 PCI bridge [0604]: Intel Corporation Sunrise Point-H PCI Express Root Port #6 [8086:a115] (rev f1) 00:1c.6 PCI bridge [0604]: Intel Corporation Sunrise Point