Problem with stack overflow

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Operating Systems HP-UX Problem with stack overflow
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Old 03-26-2008
Data Problem with stack overflow

I get a problem with stack overflow on HP-UX, when running a C program.

Pid 28737 received a SIGSEGV for stack growth failure.
Possible causes: insufficient memory or swap space,
or stack size exceeded maxssiz.

The possible cause i found, was that the definition of a structure had changed.
One object was recompiled with the new definition, but 1, maybe not.
This caused a memory error and the program received 'SIGSEGV' (segmentation error).

But what i feel is that the variable in question, being a local variable, and hence allocated on stack, caused the above message to occur.
It referenced an address beyond stack bounds.
I beleive that maxssiz dint really exceed.

The HP manual says that if such an error occurs, then the only option is to wait and the OS will try to resolve it by itself.

Would this error occur again, if another stack variable too exceeds stack bounds?

Please advice/correct me.
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maxrsessiz(5)							File Formats Manual						     maxrsessiz(5)

maxrsessiz, maxrsessiz_64bit - maximum size (in bytes) of the RSE stack for any user process on the Itanium-based platform VALUES
Default Allowed values DESCRIPTION
Itanium-based systems utilize a per-process register stack in main memory (for more information see the Intel IA-64 Architecture Software Developer's Manual, Volume 2, Chapter 6). This stack moves registers between the physical registers and main memory and is maintained by the Register Stack Engine (RSE). determines the size of this stack. Who is Expected to Change This Tunable? Anyone. Restrictions on Changing Changes to this tunable only take effect after a reboot of the system. When Should the Value of This Tunable Be Raised? should be raised if user processes are being terminated with the error due to overflow of the RSE stack. What Are the Side Effects of Raising the Value? User processes will dedicate more virtual memory to the RSE stack. This will result in less virtual memory being available for data alloca- tion. When Should the Value of This Tunable Be Lowered? This tunable should be lowered only if swap space is at a premium on the system, since virtual memory for the RSE stack still requires matching swap reservation or allocation. Serious consideration should be given if is being lowered below the default as this may cause unexpected failures of user applications on RSE stack overflow. This tunable is best left unchanged without complete and detailed knowledge of the RSE stack usage of the machine workload. What Are the Side Effects of Lowering the Value? Lowering this tunable will limit the amount of memory available for RSE stack usage per process. This could cause processes with large RSE stack requirements to terminate with a error. What Other Tunable Values Should Be Changed at the Same Time? None. WARNINGS
All HP-UX kernel tunable parameters are release specific. This parameter may be removed or have its meaning changed in future releases of HP-UX. Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parameter values. After installation, some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tun- able values, consult the documentation for the kernel software being installed. For information about optional kernel software that was factory installed on your system, see at AUTHOR
was developed by HP. SEE ALSO
maxssiz(5), maxdsiz(5), maxtsiz(5). Itanium(R)-based Systems Only Tunable Kernel Parameters maxrsessiz(5)

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