Hi Shiv,
Just because the process size is increasing doesn't mean that you have a
memory leak. For example:
p = malloc(sizeof (node_t));
p->next = list;
list = p;
::findleaks is only going to find buffers that aren't referenced.
Adam
On Thu, Jul 17, 2008 at 05:39:42PM +0530, S h i v wrote:
> Hi,
>
> I have a process whose size is continuously increasing on
> loading/using the application. On removing the load, the size stops
> increasing but doesn't come down.
> This behaviour is after moving the application from libCstd to stlport4.
> libumem indicates leaks pointing to MMAP. "CACHE LEAKED" shows
> zero leaks. How to interpret the results.
>
> mdb output is as below:
>
> $ ./mdb core.22117
> Loading modules: [ libumem.so.1 libc.so.1 libuutil.so.1 ld.so.1 ]
> > ::findleaks
> mdb: [fffffffeeb400000, fffffffeeb4fc000): couldn't read 16384 bytes
> at fffffffeeb400000: no mapping for address
> mdb: [fffffffeeb500000, fffffffeeb51a000): couldn't read 16384 bytes
> at fffffffeeb500000: no mapping for address
> mdb: [fffffffeeb600000, fffffffeeb61a000): couldn't read 16384 bytes
> at fffffffeeb600000: no mapping for address
> mdb: [fffffffeeb700000, fffffffeeb71a000): couldn't read 16384 bytes
> at fffffffeeb700000: no mapping for address
> mdb: [fffffffeeb800000, fffffffeeb81a000): couldn't read 16384 bytes
> at fffffffeeb800000: no mapping for address
> BYTES LEAKED VMEM_SEG CALLER
> 8192 122 fffffffe87540000 MMAP
> 16384 1 ffffffff7e5ec000 MMAP
> 49152 1 ffffffff74cb0000 MMAP
> 49152 1 ffffffff74b30000 MMAP
> 16384 1 ffffffff74a80000 MMAP
> 24576 1 ffffffff74920000 MMAP
> 1179648 1 ffffffff74800000 MMAP
> 8192 1 ffffffff74340000 MMAP
> 8192 1 ffffffff74240000 MMAP
> 32768 1 ffffffff738a0000 MMAP
> 655360 1 ffffffff73800000 MMAP
> 16384 1 ffffffff72490000 MMAP
> 589824 1 ffffffff72400000 MMAP
> 32768 1 ffffffff71d30000 MMAP
> 1245184 1 ffffffff71c00000 MMAP
> 8192 1 ffffffff70880000 MMAP
> 24576 1 ffffffff5e610000 MMAP
> 1638400 1 ffffffff5dc00000 MMAP
> 40960 1 ffffffff53d30000 MMAP
> 1245184 1 ffffffff53c00000 MMAP
> 57344 1 ffffffff0c530000 MMAP
> 16384 1 ffffffff0c1a0000 MMAP
> 49152 1 ffffffff0bf10000 MMAP
> 2686976 1 ffffffff0bc00000 MMAP
> 49152 1 fffffffefdf10000 MMAP
> 49152 1 fffffffefde10000 MMAP
> 49152 1 fffffffefdd10000 MMAP
> 40960 1 fffffffef24c0000 MMAP
> 786432 1 fffffffef2400000 MMAP
> 16384 1 fffffffeebb90000 MMAP
> 40960 1 fffffffea0c60000 MMAP
> 393216 1 fffffffea0c00000 MMAP
> 40960 1 fffffffe994e2000 MMAP
> 40960 1 fffffffe992e2000 MMAP
> 40960 1 fffffffe990e2000 MMAP
> 40960 1 fffffffe98ee2000 MMAP
> 40960 1 fffffffe98ce2000 MMAP
> 40960 1 fffffffe98ae2000 MMAP
> 40960 1 fffffffe988e2000 MMAP
> 40960 1 fffffffe986e2000 MMAP
> 40960 1 fffffffe984e2000 MMAP
> 40960 1 fffffffe982e2000 MMAP
> 40960 1 fffffffe980e2000 MMAP
> 40960 1 fffffffe97ee2000 MMAP
> 40960 1 fffffffe97ce2000 MMAP
> 40960 1 fffffffe97ae2000 MMAP
> 40960 1 fffffffe978e2000 MMAP
> 32768 1 fffffffe975e2000 MMAP
> 16384 1 fffffffe972e6000 MMAP
> 32768 1 fffffffe95ae4000 MMAP
> 24576 1 fffffffe958e4000 MMAP
> 16384 1 fffffffe956e6000 MMAP
> 24576 1 fffffffe954e6000 MMAP
> 16384 1 fffffffe952e6000 MMAP
> 8192 1 fffffffe95040000 MMAP
> 8192 1 fffffffe94d40000 MMAP
> 8192 1 fffffffe94a40000 MMAP
> 8192 1 fffffffe94740000 MMAP
> 8192 1 fffffffe94440000 MMAP
> 8192 1 fffffffe94140000 MMAP
> 8192 1 fffffffe93e40000 MMAP
> 8192 1 fffffffe93b40000 MMAP
> 8192 1 fffffffe93840000 MMAP
> 8192 1 fffffffe93540000 MMAP
> 8192 1 fffffffe93240000 MMAP
> 8192 1 fffffffe92f40000 MMAP
> 8192 1 fffffffe92c40000 MMAP
> 8192 1 fffffffe92940000 MMAP
> 8192 1 fffffffe92640000 MMAP
> 8192 1 fffffffe92340000 MMAP
> 8192 1 fffffffe92040000 MMAP
> 8192 1 fffffffe91d40000 MMAP
> 8192 1 fffffffe91a40000 MMAP
> 8192 1 fffffffe91740000 MMAP
> 8192 1 fffffffe91440000 MMAP
> 8192 1 fffffffe91140000 MMAP
> 8192 1 fffffffe90e40000 MMAP
> 8192 1 fffffffe90b40000 MMAP
> 8192 1 fffffffe90840000 MMAP
> 8192 1 fffffffe90540000 MMAP
> 8192 1 fffffffe90240000 MMAP
> 8192 1 fffffffe8ff40000 MMAP
> 8192 1 fffffffe8fc40000 MMAP
> 8192 1 fffffffe8f940000 MMAP
> 8192 1 fffffffe8f640000 MMAP
> 8192 1 fffffffe8f340000 MMAP
> 8192 1 fffffffe8f040000 MMAP
> 8192 1 fffffffe8ed40000 MMAP
> 8192 1 fffffffe8ea40000 MMAP
> 8192 1 fffffffe8e740000 MMAP
> 8192 1 fffffffe8e440000 MMAP
> 8192 1 fffffffe8e140000 MMAP
> 8192 1 fffffffe8db40000 MMAP
> 8192 1 fffffffe8d840000 MMAP
> 8192 1 fffffffe8d340000 MMAP
> 8192 1 fffffffe8d040000 MMAP
> 8192 1 fffffffe8cc40000 MMAP
> 8192 1 fffffffe8c940000 MMAP
> 8192 1 fffffffe8c640000 MMAP
> 8192 1 fffffffe8c340000 MMAP
> 8192 1 fffffffe8be40000 MMAP
> 8192 1 fffffffe8bb40000 MMAP
> 8192 1 fffffffe8b740000 MMAP
> 8192 1 fffffffe8b440000 MMAP
> 8192 1 fffffffe8b140000 MMAP
> 8192 1 fffffffe8ae40000 MMAP
> 8192 1 fffffffe8a940000 MMAP
> 8192 1 fffffffe8a640000 MMAP
> 8192 1 fffffffe8a340000 MMAP
> 8192 1 fffffffe8a040000 MMAP
> 8192 1 fffffffe89b40000 MMAP
> 8192 1 fffffffe89840000 MMAP
> 8192 1 fffffffe89540000 MMAP
> 8192 1 fffffffe89240000 MMAP
> 8192 1 fffffffe88f40000 MMAP
> 8192 1 fffffffe88c40000 MMAP
> 8192 1 fffffffe88940000 MMAP
> 8192 1 fffffffe88540000 MMAP
> 8192 1 fffffffe88240000 MMAP
> 8192 1 fffffffe87f40000 MMAP
> 8192 1 fffffffe87c40000 MMAP
> 8192 1 fffffffe87840000 MMAP
> ------------------------------------------------------------------------
> Total 122 oversized leaks, 12460032 bytes
>
> CACHE LEAKED BUFCTL CALLER
> ----------------------------------------------------------------------
> Total 0 buffers, 0 bytes
> >
> >
> > ::umem_status
> Status: ready and active
> Concurrency: 64
> Logs: transaction=2m
> Message buffer:
>
> > ::umem_verify
> Cache Name Addr Cache Integrity
> umem_magazine_1 ffffffff7a10e028 clean
> umem_magazine_3 ffffffff79f00028 clean
> umem_magazine_7 ffffffff79f02028 clean
> umem_magazine_15 ffffffff79f04028 clean
> umem_magazine_31 ffffffff79f08028 clean
> umem_magazine_47 ffffffff79f0a028 clean
> umem_magazine_63 ffffffff79f0c028 clean
> umem_magazine_95 ffffffff79f0e028 clean
> umem_magazine_143 ffffffff79d02028 clean
> umem_slab_cache ffffffff79d04028 clean
> umem_bufctl_cache ffffffff79d06028 clean
> umem_bufctl_audit_cache ffffffff79d08028 clean
>
> -Shiv
> _______________________________________________
> mdb-discuss mailing list
> mdb-discuss at opensolaris.org
--
Adam Leventhal, Fishworks http://blogs.sun.com/ahl
