What causes a SIGBUS on a C Bus?
a SIGBUS is caused due to alignment issues with the CPU (e.g., trying to read a long from an address which isn’t a multiple of 4). SIGBUS will also be raised if you mmap () a file and attempt to access part of the mapped buffer that extends past the end of the file, as well as for error conditions such as out of space.
What causes a bus error on a SPARC?
For instance, a bus error might be caused when your program tries to do something that the hardware bus doesn’t support. On SPARCs, for instance, trying to read a multi-byte value (such as an int, 32-bits) from an odd address generated a bus error.
When does a bus error cause a segmentation fault?
An index above 77791 and below -4128 will cause a segmentation fault (SIGSEGV). 24544 will cause a Bus error (SIGBUS). Here the complete map: If you look at the disassembled code, you see that the borders of the ranges with bus errors are not as odd as the index appears:
What does bus error mean in C stack overflow?
– ShinTakezou Dec 10 ’12 at 6:25 Which CPU are you running on? Bus error can mean at least unaligned memory access, which very often is result of accessing memory though uninitialized or corrupted pointer. Program not crashing or not crashing when removing the char is probably random side effect of changing the code.
What kind of diagnostics can OnStar do on a car?
Also referred to as OVD, OnStar Vehicle Diagnostics can run a thorough check of a vehicle’s various systems, including its engine, transmission, antilock brakes and more. OVD can also perform an on-demand diagnostics check when the vehicle is being driven.
Are there any problems with Mercedes star diagnostic?
Mercedes Star Diagnostic Problems with Software (Xentry) VM Ware Installation: All the setups that you see for sale that state that they use VMware environments are not legitimate hardware and software. Besides the fact that these scanners are not legal copies, they are also prone to crashing and run much slower than direct Windows installations.
Which is the best CAN bus troubleshooting guide?
CAN-Bus Troubleshooting Guide Download a copy of the CAN-Bus Troubleshooting Guide (PDF). The CAN-Bus Troubleshooting Guide is a guide to find and eliminate the most frequent hardware-error causes in the wiring of CAN-networks. The termination is used to match impedance of a node to the impedance of the transmission line being used.
How to diagnose communication problems in a CANbus?
Below are some tips for diagnosing CANBUS communication problems: There must be exactly two (2) termination resistors of 120 ohms each at the physical ends of the CANBUS.