[Bug 1894029] Re: qemu-i386 malloc error

[Tony.LI]

** Description changed:

  Hi!I use qemu-i386-static on 64 bit machines.And memory request succeeded, 
but the pointer is wrong.
  This is my test program:
  
  #include <stdint.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <unistd.h>
  
  int main(int argc, char **argv)
  {
-         void *pa=0,*pb=0,*pc=0,*pd=0;
-         pa = malloc(sizeof(uint32_t));
-         pb = malloc(sizeof(uint32_t));
-         pc = malloc(4);
-         pd = malloc(4);
-         printf("pa: 0x%x\n",pa);
-         printf("pb: 0x%x\n",pb);
-         printf("pc: 0x%x\n",pc);
-         printf("pd: 0x%x\n",pd);
-         printf("uint32_t:%d\n",sizeof(uint32_t));
-         free(pa);
-         free(pb);
-         free(pc);
-         free(pd);
-         return 0;
+         void *pa=0,*pb=0,*pc=0,*pd=0;
+         pa = malloc(sizeof(uint32_t));
+         pb = malloc(sizeof(uint32_t));
+         pc = malloc(4);
+         pd = malloc(4);
+         printf("pa: 0x%x\n",pa);
+         printf("pb: 0x%x\n",pb);
+         printf("pc: 0x%x\n",pc);
+         printf("pd: 0x%x\n",pd);
+         printf("uint32_t:%d\n",sizeof(uint32_t));
+         free(pa);
+         free(pb);
+         free(pc);
+         free(pd);
+         return 0;
  }
  
  And it is wrong:
  
  pa: 0x400051a0
  pb: 0x400051b0
  pc: 0x400051c0
  pd: 0x400051d0
  uint32_t:4
  
  Why did I apply for 4 bytes of space, but the pointer only increased by 2 
bytes??
  Is it a BUG??

** Description changed:

- Hi!I use qemu-i386-static on 64 bit machines.And memory request succeeded, 
but the pointer is wrong.
- This is my test program:
- 
- #include <stdint.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <unistd.h>
- 
- int main(int argc, char **argv)
- {
-         void *pa=0,*pb=0,*pc=0,*pd=0;
-         pa = malloc(sizeof(uint32_t));
-         pb = malloc(sizeof(uint32_t));
-         pc = malloc(4);
-         pd = malloc(4);
-         printf("pa: 0x%x\n",pa);
-         printf("pb: 0x%x\n",pb);
-         printf("pc: 0x%x\n",pc);
-         printf("pd: 0x%x\n",pd);
-         printf("uint32_t:%d\n",sizeof(uint32_t));
-         free(pa);
-         free(pb);
-         free(pc);
-         free(pd);
-         return 0;
- }
- 
- And it is wrong:
- 
- pa: 0x400051a0
- pb: 0x400051b0
- pc: 0x400051c0
- pd: 0x400051d0
- uint32_t:4
- 
- Why did I apply for 4 bytes of space, but the pointer only increased by 2 
bytes??
- Is it a BUG??
+ Invalid

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https://bugs.launchpad.net/bugs/1894029

Title:
  qemu-i386 malloc error

Status in QEMU:
  Invalid

Bug description:
  Invalid

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