Re: [Qemu-stable] [Qemu-devel] [RESEND v2 0/3] Fix some memory leaks about query memdev

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ping ?

On Mon, 2014-08-18 at 14:46 +0800, Chen Fan wrote: 
> when using valgrind to test the command "query memdev", I had
> found some memory leaks. the test result:
> 
> ==13802== 4 bytes in 1 blocks are definitely lost in loss record 125 of 8,508
> ==13802==    at 0x4A08934: malloc (vg_replace_malloc.c:291)
> ==13802==    by 0x4A08AA8: realloc (vg_replace_malloc.c:687)
> ==13802==    by 0x64C5736: g_realloc (in /usr/lib64/libglib-2.0.so.0.3400.2)
> ==13802==    by 0x64DE226: ??? (in /usr/lib64/libglib-2.0.so.0.3400.2)
> ==13802==    by 0x64DE279: g_string_sized_new (in 
> /usr/lib64/libglib-2.0.so.0.3400.2)
> ==13802==    by 0x47CFBB: string_output_visitor_new 
> (string-output-visitor.c:341)
> ==13802==    by 0x3F456F: object_property_get_uint16List (object.c:970)
> ==13802==    by 0x1E8764: query_memdev (numa.c:361)
> ==13802==    by 0x3F3248: object_child_foreach (object.c:686)
> ==13802==    by 0x1E9141: qmp_query_memdev (numa.c:389)
> ==13802==    by 0x2D79A0: qmp_marshal_input_query_memdev (qmp-marshal.c:5057)
> ==13802==    by 0x1DD7D7: handle_qmp_command (monitor.c:5038)
> 
> ==15046== 48 (16 direct, 32 indirect) bytes in 1 blocks are definitely lost 
> in loss record 4,722 of 8,549
> ==15046==    at 0x4A08934: malloc (vg_replace_malloc.c:291)
> ==15046==    by 0x64C541D: ??? (in /usr/lib64/libglib-2.0.so.0.3400.2)
> ==15046==    by 0x64C56E6: g_malloc0 (in /usr/lib64/libglib-2.0.so.0.3400.2)
> ==15046==    by 0x1E868C: query_memdev (numa.c:325)
> ==15046==    by 0x3F3258: object_child_foreach (object.c:686)
> ==15046==    by 0x1E9141: qmp_query_memdev (numa.c:389)
> ==15046==    by 0x2DDFF3: hmp_info_memdev (hmp.c:1687)
> ==15046==    by 0x1E4B08: handle_user_command (monitor.c:4119)
> ==15046==    by 0x1E4E7A: monitor_command_cb (monitor.c:5156)
> ==15046==    by 0x496056: readline_handle_byte (readline.c:391)
> ==15046==    by 0x1E4BCE: monitor_read (monitor.c:5139)
> ==15046==    by 0x2BCDEF: fd_chr_read (qemu-char.c:213)
> 
> 
> Chen Fan (3):
>   query-memdev: fix potential memory leaks
>   qom/object.c: fix string_output_get_string() memory leak
>   hmp: fix MemdevList memory leak
> 
>  hmp.c        |  8 ++++++--
>  numa.c       | 15 +++++++--------
>  qom/object.c | 12 ++++++++++--
>  3 files changed, 23 insertions(+), 12 deletions(-)
>