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Red Hat Bugzilla – Attachment 571801 Details for
Bug 805645
Kernell freeze under rapid allocation of memory
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C program that will allocate and touch memory.
MemoryCrashProg.c (text/x-csrc), 586 bytes, created by
Bob Fries
on 2012-03-21 18:01:26 UTC
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Description:
C program that will allocate and touch memory.
Filename:
MIME Type:
Creator:
Bob Fries
Created:
2012-03-21 18:01:26 UTC
Size:
586 bytes
patch
obsolete
>// This program started up twice with a parameter just short of the number >// of gigs of ram will cause crashes on several machines. >#include <stdint.h> >#include <stdlib.h> >#include <stdio.h> >main(int argc,char **argv) { > uint64_t GigInt=(1024/sizeof(int))*1024*1024; > int *Buf; > uint64_t Idx; > int NrGig; > if (argc!=2) { > fprintf(stderr,"Usage: <NumberGigs>\n"); > exit(1); > } > NrGig=atoi(argv[1]); > Buf=malloc(NrGig*GigInt*sizeof(int)); > if (Buf==NULL) { > fprintf(stderr,"Cannot allocate Buf\n"); > exit(1); > } > for (Idx=0;Idx<NrGig*GigInt;Idx++) Buf[Idx]=Idx; >}
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bug 805645
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