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Full Discussion: No core dump
Top Forums UNIX for Dummies Questions & Answers No core dump Post 302479817 by vistastar on Monday 13th of December 2010 04:14:07 AM
Old 12-13-2010
No core dump

my progrme complaints 'Segmentation fault'.
How to let it print 'Segmentation fault(core dumped)' and generate core dump file?
Code:
$ulimit
unlimited


Last edited by vistastar; 12-13-2010 at 05:23 AM..
 

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dump(9E)							Driver Entry Points							  dump(9E)

NAME
dump - dump memory to device during system failure SYNOPSIS
#include <sys/types.h> #include <sys/ddi.h> #include <sys/sunddi.h> int dump(dev_t dev, caddr_t addr, daddr_t blkno, int nblk); INTERFACE LEVEL
Solaris specific (Solaris DDI). This entry point is required. For drivers that do not implement dump() routines, nodev(9F) should be used. ARGUMENTS
dev Device number. addr Address for the beginning of the area to be dumped. blkno Block offset to dump memory. nblk Number of blocks to dump. DESCRIPTION
dump() is used to dump a portion of virtual address space directly to a device in the case of system failure. It can also be used for checking the state of the kernel during a checkpoint operation. The memory area to be dumped is specified by addr (base address) and nblk (length). It is dumped to the device specified by dev starting at offset blkno. Upon completion dump() returns the status of the transfer. When the system is panicking, the calls of functions scheduled by timeout(9F) and ddi_trigger_softintr(9F) will never occur. Neither can delay(9F) be relied upon, since it is implemented via timeout(). See ddi_in_panic(9F). dump() is called at interrupt priority. RETURN VALUES
dump() returns 0 on success, or the appropriate error number. SEE ALSO
cpr(7), nodev(9F) Writing Device Drivers SunOS 5.11 9 Oct 2001 dump(9E)
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