Linux Bus Error Core Dump
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Linux Bus Error Message
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Bus Error (core Dumped) Centos
Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join bus error core dumped in unix them; it 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 bus error (core dumped) c++ change to code,nothing 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 278k63619656 asked May 3 '11 at 13:40 liv2hak 3,8741759109 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
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
How To Solve Bus Error In Linux
to me sometimes, for the solution see at the end of bus error 10 c this posting after the description of the error. From GUII try to start an application (it
How To Debug Bus Error
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 http://stackoverflow.com/questions/5870353/bus-error-system-error my GUI (e17) 'XXXX (the application) stopped running unexpectedly. 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 terminal. The terminal tells me 'Bus error https://bbs.archlinux.org/viewtopic.php?id=162972 (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 again: who is going to talk about google any more in just a couple of years.Solutionremove /home/
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 to access memory that the CPU cannot physically address: an invalid https://en.wikipedia.org/wiki/Bus_error address for the address bus, hence the name. In modern use on most architectures these https://forums.cpanel.net/threads/bus-error-core-dumped.412542/ are much rarer than segmentation faults, which 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. SIGBUS can also be caused by any general device fault that the computer detects, though a bus error rarely means that the bus error 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 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 bus error (core 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, 6, and so on would be considered aligned and therefore accessible, while addresses 1, 3, 5, and so on would be considered unaligned. Similarly, if multi-byte accesses must be 32-bit aligned, addresses 0, 4, 8, 12, and so on would be considered aligned and therefore accessible, and all addresses in between would be considered unaligned. Attempting to access a unit larger than a byte at an un
Plans & Pricing Partners Support Resources Preview Forums Forums Quick Links Search Forums New Posts Search titles only Posted by Member: Separate names with a comma. Newer Than: Search this thread only Search this forum only Display results as threads More... Useful Searches Recent Posts Resources Resources Quick Links Search Resources Most Active Authors Latest Reviews Feature Requests Defects Menu Log in Sign up The Community Forums Interact with an entire community of cPanel & WHM users! cPanel Forums > cPanel & WHM® (for Linux® Servers) > General Discussion > This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More. Bus error (core dumped) Discussion in 'General Discussion' started by PV-Patrick, Jun 11, 2014. PV-Patrick Member Joined: Jun 26, 2007 Messages: 9 Likes Received: 0 Trophy Points: 1 I have received the following error while trying to input commands via ssh twice. Error: Bus error (core dumped) At first, I thought the hard drive was going bad so I initiated a power cycle through my hosts web control panel and ran a couple HD tests once the machine came back up. I checked for bad blocks and also ran a couple SMART tests. Both came back without error and no problems. It happened again last night so I went through the same cycle and still, no problems detected. It's a brand new WD HD Black 500GB SATA, no raid. However, I did notice that it happened around the same time both nights (2am CDT) and that got me thinking it could be tied to a cron job. I haven't been able to find anything in the logs but I could be missing something. Has anyone else experienced this problem before or may be able to point me in the right direction? Thank you! #1 PV-Patrick, Jun 11, 2014 vanessa Well-Known Member PartnerNOC Joined: Sep 26, 2006 Messages: 805 Likes Received: 19 Trophy Points: 18 Location: Virginia Beach, VA cPanel Access Level: DataCenter Provider No one here can tell you what's going on based on what you provided. Try using GDB to debug the core dump: Linux Unleashed: Debugging core using gdb cPanel Pro @http://www.thecpaneladmin.com #2 vanessa, Jun 12, 2014 cPanelMichael Forums Analyst Staff Member Joined: Apr 11, 2011 Messages: 29,633 Likes Received: 548 Trophy Points: 113 cPanel Access Level: Root Administrator Hello