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Full Discussion: Internal Memory Error ?
Operating Systems HP-UX Internal Memory Error ? Post 302694271 by sidharthmellam on Thursday 30th of August 2012 10:30:26 AM
Old 08-30-2012
Internal Memory Error ?

==================================================================================
Code:
[Thr 40] SEGV_MAPERR: Address not mapped to object
[Thr 40] fffffffffffffff0 (Memory location which caused fault)
[Thr 40] ------------------ C-STACK ----------------------
(0) 0x40000000007622f0 CTrcStack2 + 0x1d0 at dptstack_mt.c:228 /exe/jlaunch]
(1) 0x4000000000ccb7a0 SigIGenAction + 0x550 at sigux_mt.c:1761 exe/jlaunch]
(2) 0x1fffffffff7978a0 _ZN2os4Hpux15chained_handlerEiP9__siginfoPv + 0x220 at /CLO/Components/JAVA_HOTSPOT/Src/src/os/hp-ux/vm/os_hp-ux.cpp:2918 [/opt/java1.4/jre/li
b/IA64W/server/libjvm.so]
(3) 0x1fffffffff795e50 _ZN2os4Hpux22JVM_handle_hpux_signalEiP9__siginfoPvi + 0x750 at /CLO/Components/JAVA_HOTSPOT/Src/src/os_cpu/hp-ux_ia64/vm/os_hp-ux_ia64.cpp:725
[/opt/java1.4/jre/lib/IA64W/server/libjvm.so]
(4) 0x1fffffffff7956e0 _ZN2os4Hpux13signalHandlerEiP9__siginfoPv + 0x80 at /CLO/Components/JAVA_HOTSPOT/Src/src/os/hp-ux/vm/os_hp-ux.cpp:2843 [/opt/java1.4/jre/lib/I
A64W/server/libjvm.so]
(5) 0xe0000001254ff440 ---- Signal 11 (SIGSEGV) delivered ----
(6) 0xfffffffffffffff0
*** Error unwinding stack (-3) ***

==================================================================================

Hi All , Does the Following Lines in the above data Indicate ,

1.Any Issues in the Internal Memory of HP UX

2. or is this Related to JAVA of More , Did Search Net before Posting here , but did not get info

Code:
fffffffffffffff0 (Memory location which caused fault)

------------------ C-STACK ----------------------

0x1fffffffff7978a0 _ZN2os4Hpux15chained_handlerEiP9__siginfoPv


0x1fffffffff795e50 _ZN2os4Hpux22JVM_handle_hpux_signalEiP9__siginfoPvi

Regards

Last edited by jim mcnamara; 08-30-2012 at 11:36 AM..
 

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STACK(9)						   BSD Kernel Developer's Manual						  STACK(9)

NAME
stack -- kernel thread stack tracing routines SYNOPSIS
#include <sys/param.h> #include <sys/stack.h> In the kernel configuration file: options DDB options STACK struct stack * stack_create(void); void stack_destroy(struct stack *st); int stack_put(struct stack *st, vm_offset_t pc); void stack_copy(struct stack *src, struct stack dst); void stack_zero(struct stack *st); void stack_print(struct stack *st); void stack_print_ddb(struct stack *st); void stack_print_short(struct stack *st); void stack_print_short_ddb(struct stack *st); void stack_sbuf_print(struct sbuf sb*, struct stack *st); void stack_sbuf_print_ddb(struct sbuf sb*, struct stack *st); void stack_save(struct stack *st); DESCRIPTION
The stack KPI allows querying of kernel stack trace information and the automated generation of kernel stack trace strings for the purposes of debugging and tracing. To use the KPI, at least one of options DDB and options STACK must be compiled into the kernel. Each stack trace is described by a struct stack. Before a trace may be created or otherwise manipulated, storage for the trace must be allo- cated with stack_create(), which may sleep. Memory associated with a trace is freed by calling stack_destroy(). A trace of the current kernel thread's call stack may be captured using stack_save(). stack_print() and stack_print_short() may be used to print a stack trace using the kernel printf(9), and may sleep as a result of acquiring sx(9) locks in the kernel linker while looking up symbol names. In locking-sensitive environments, the unsynchronized stack_print_ddb() and stack_print_short_ddb() variants may be invoked. This function bypasses kernel linker locking, making it usable in ddb(4), but not in a live system where linker data structures may change. stack_sbuf_print() may be used to construct a human-readable string, including conversion (where possible) from a simple kernel instruction pointer to a named symbol and offset. The argument sb must be an initialized struct sbuf as described in sbuf(9). This function may sleep if an auto-extending struct sbuf is used, or due to kernel linker locking. In locking-sensitive environments, such as ddb(4), the unsynchro- nized stack_sbuf_print_ddb() variant may be invoked to avoid kernel linker locking; it should be used with a fixed-length sbuf. The utility functions stack_zero, stack_copy, and stack_put may be used to manipulate stack data structures directly. SEE ALSO
ddb(4), printf(9), sbuf(9), sx(9) AUTHORS
The stack(9) function suite was created by Antoine Brodin. stack(9) was extended by Robert Watson for general-purpose use outside of ddb(4). BSD
June 24, 2009 BSD
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