Bus Error Unix Server
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Linux Bus Error
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Linux Bus Error Core Dumped
can answer The best answers are voted up and rise to the top Server responds “bus error” to every command up vote 4 down vote favorite I have a linux machine dedicated to MySQL server with a pretty high load. Today I woke up and was terrified to see that database server is down. I could connect to it via SSH, but it was responding
Bus Error In Linux Terminal
with bus error to each and every command: [root@r1304 home]# ls Bus error [root@r1304 home]# tail /var/log/messages Bus error [root@r1304 home]# reboot Bus error [root@r1304 home]# free -m Bus error [root@r1304 home]# chkdisk Bus error I went to Data Center and did a hard reset, which seemed to help, but after a half an hour situation reapeated and now I can't even connet via SSH anymore. Any ideas what this could be? how to diagnose such a problem and what are possible fixes? Server has 32 GB RAM, 2xSSD drives with software RAID UPDATE According to Zabbix, when MySQL died, number of processes stated to increase drammaticaly, until I did a hard reset. What could those be? Number of processes linux centos hardware ssd bus share|improve this question edited Jul 24 '14 at 20:09 msanford 1,2251224 asked Dec 8 '12 at 13:30 Temnovit 30241224 Those are processes piling up waiting for I/O. Something is happening at the storage layer. –ewwhite Dec 8 '12 at 23:47 What was the issue? –ewwhite Dec 10 '12 at 10:32 @ewwhite, well, the hard drive completely died. Hello, kingston S
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How To Solve Bus Error In Linux
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 how to debug bus error only takes a minute: Sign up What is a bus error? up vote 155 down vote favorite 49 What does the "bus error" message mean, and how does it differ from a segfault? c unix segmentation-fault bus-error share|improve this http://serverfault.com/questions/456337/server-responds-bus-error-to-every-command question edited Oct 18 '15 at 10:44 Cool Guy 15.8k51952 asked Oct 17 '08 at 14:48 raldi 7,239216178 add a comment| 15 Answers 15 active oldest votes up vote 150 down vote accepted Bus errors are rare nowadays on x86 and occur when your processor cannot even attempt the memory access requested, typically: using a processor instruction with an address that does not satisfy its alignment requirements. Segmentation faults occur when accessing memory which does not belong to your process, http://stackoverflow.com/questions/212466/what-is-a-bus-error they are very common and are typically the result of: using a pointer to something that was deallocated. using an uninitialized hence bogus pointer. using a null pointer. overflowing a buffer. PS: To be more precise this is not manipulating the pointer itself that will cause issues, it's accessing the memory it points to (dereferencing). share|improve this answer edited Oct 17 '08 at 15:18 answered Oct 17 '08 at 15:12 bltxd 5,70322336 52 They aren't rare; I'm just at Exercise 9 from How to Learn C the Hard Way and already encountered one... –11684 Mar 26 '13 at 20:12 5 Another cause of bus errors (on Linux anyway) is when the operating system can't back a virtual page with physical memory (e.g. low-memory conditions or out of huge pages when using huge page memory.) Typically mmap (and malloc) just reserve the virtual address space, and the kernel assigns the physical memory on demand (so called soft page faults.) Make a large enough malloc, and then write to enough of it and you'll get a bus error. –Eloff Jul 14 '15 at 0:09 add a comment| up vote 55 down vote A segfault is accessing memory that you're not allowed to access. It's read-only, you don't have permission, etc... A bus error is trying to access memory that can't possibly be there. You've used an address that's meaningless to the system, or the wrong kind of address
Linux command line?In response to an application command (i.e. evince). The application doesn't open, and Bus error message is displayed in https://www.quora.com/What-does-Bus-error-mean-in-Linux-command-line console. UpdateCancelPromoted by Udacity.comBecome a Full Stack Web Developer.Learn full stack web development in a course created by Google, GitHub, & AWS. Job offer guaranteed.Learn More at Udacity.comAnswer http://linux.ittoolbox.com/groups/technical-functional/linuxadmin-l/unable-to-run-some-commands-bus-error-3641099 Wiki1 Answer Ken QuonWritten 316w agoThe operating system is sending a signal to the application that an improper memory access occurred.The two main causes:non-existent physical address : the bus error CPU tries to read or write, however, the hardware does not respond properly to this addressunaligned word access : for multi-byte word accesses, the address usually needs to be aligned on a particular boundaryLess common:virtual memory pages have disappearedhttp://en.wikipedia.org/wiki/SIGBUShttp://en.wikipedia.org/wiki/Bus...5.5k Views · View UpvotesView More AnswersRelated QuestionsWhat does $! mean in the context of a command line?What linux bus error does the "-" mean in all the Linux commands?Why is it that while running from the Linux command line you see so many errors? What do Windows and other OSs do about it?What is the Linux command line tool for shutting down?How do I compile linux command line source code program to iOS command line program(like program in cydia)?What are some open source command line tools for filtering, and editing audio files/streams in Linux?What is the meaning of the single and double dots that are printed in the command line when you list the contents of a directory?How do I learn all (I mean everything) of the Linux commands?What book should I read to learn command line coding in Linux?How did you learn the Linux command line?What is the best way to familiarize yourself with CLI (command line interface)?What does this command line command mean?What does command line mean?What is the best Linux IRC client?How do I use PLSQL on Linux? I mean, the tools used for
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