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Bug #5185
closedpossible memleak: "Indirect leak of 22800 byte(s) in 228 object(s) allocated from [...] _talloc_memdup"
Start date:
06/16/2021
Due date:
% Done:
0%
Spec Reference:
Description
running ttcn3-bsc-tests locally, osmo-stp compiled with asan, when I ctrl-c osmo-stp after a while, i often get:
=================================================================
==2538==ERROR: LeakSanitizer: detected memory leaks
[...]
Indirect leak of 22800 byte(s) in 228 object(s) allocated from:
#0 0x7fbb4d20d330 in __interceptor_malloc (/lib/x86_64-linux-gnu/libasan.so.5+0xe9330)
#1 0x7fbb4cdc7776 in _talloc_memdup (/lib/x86_64-linux-gnu/libtalloc.so.2+0x9776)
Related issues
Updated by neels almost 3 years ago
- Related to Bug #5184: possible memleak: "Indirect leak of 44688 byte(s) in 342 object(s) allocated from [...] _talloc_zero" added
Updated by neels almost 3 years ago
here the output of another instance of this leak:
=================================================================
==2673==ERROR: LeakSanitizer: detected memory leaks
[...]
Indirect leak of 36000 byte(s) in 360 object(s) allocated from:
#0 0x7f3493add330 in __interceptor_malloc (/lib/x86_64-linux-gnu/libasan.so.5+0xe9330)
#1 0x7f3493696776 in _talloc_memdup (/lib/x86_64-linux-gnu/libtalloc.so.2+0x9776)
The fact that the numbers are different for differing running time seems to confirm that this is an actual leak.
Updated by neels almost 3 years ago
added a talloc report to Ctrl-C in osmo-stp and got this after running a few ttcn3-bsc-tests:
20210620232109207 DLSS7 <000c> ../../../src/libosmocore/src/fsm.c:573 XUA_ASP(asp-dyn-1){ASP_DOWN}: Deallocated
^Csignal 2 received
talloc report on 'vty' (total 134459 bytes in 7217 blocks)
Configure SCCP timer values, see ITU-T Q.714
Waiting for connection confirm message, 1 to 2 minutes (default: 60)
Send keep-alive: on an idle connection, delay before sending an Idle Timer message, 5 to 10 minutes (default: 420)
Receive keep-alive: on an idle connection, delay until considering a connection as stale, 11 to 21 minutes (default: 900)
Waiting for release complete message, 10 to 20 seconds (default: 10)
Waiting for release complete message; or to repeat sending released message after the initial expiry, 10 to 20 seconds (default: 10)
Waiting for release complete message; or to release connection resources, freeze the LRN and alert a maintenance function after the initial expiry, extending to 1 minute (default: 60)
Waiting to resume normal procedure for temporary connection sections during the restart procedure, 23 to 25 minutes (default: 1380)
Waiting to release temporary connection section or alert maintenance function after reset request message is sent, 10 to 20 seconds (default: 10)
Waiting to receive all the segments of the remaining segments, single segmented message after receiving the first segment, 10 to 20 seconds (default: 10)
Timer value, in seconds
contains 1194 bytes in 1 blocks (ref 0) 0x61a0000006e0
sccp-timer (conn_est|ias|iar|rel|repeat_rel|int|guard|reset|reassembly) <1-999999> contains 83 bytes in 1 blocks (ref 0) 0x6100000011a0
save_cwd contains 46 bytes in 1 blocks (ref 0) 0x60d000002530
vty_command contains 82864 bytes in 4310 blocks (ref 0) 0x608000000280
vty_vector contains 50272 bytes in 2903 blocks (ref 0) 0x608000000200
full talloc report on 'osmo-stp' (total 14206 bytes in 107 blocks)
telnet_connection contains 1 bytes in 1 blocks (ref 0) 0x60b000129200
struct osmo_ss7_instance contains 9437 bytes in 88 blocks (ref 0) 0x614000001aa0
struct osmo_xua_server contains 678 bytes in 4 blocks (ref 0) 0x6140000020a0
:: contains 3 bytes in 1 blocks (ref 0) 0x60b000128ff0
struct osmo_stream_srv_link contains 339 bytes in 2 blocks (ref 0) 0x6140000022a0
:: contains 3 bytes in 1 blocks (ref 0) 0x60b0001290a0
struct osmo_xua_server contains 678 bytes in 4 blocks (ref 0) 0x614000001ca0
:: contains 3 bytes in 1 blocks (ref 0) 0x60b0001289c0
struct osmo_stream_srv_link contains 339 bytes in 2 blocks (ref 0) 0x614000001ea0
:: contains 3 bytes in 1 blocks (ref 0) 0x60b000128a70
struct osmo_ss7_as contains 600 bytes in 7 blocks (ref 0) 0x613000008920
virt-smlc contains 10 bytes in 1 blocks (ref 0) 0x60b000124870
struct osmo_fsm_inst contains 340 bytes in 4 blocks (ref 0) 0x612000001ea0
struct xua_as_fsm_priv contains 112 bytes in 1 blocks (ref 0) 0x611000006ae0
XUA_AS(virt-smlc) contains 18 bytes in 1 blocks (ref 0) 0x60c000032320
virt-smlc contains 10 bytes in 1 blocks (ref 0) 0x60b0001247c0
virt-smlc contains 10 bytes in 1 blocks (ref 0) 0x60b000124710
struct osmo_ss7_asp contains 1134 bytes in 9 blocks (ref 0) 0x618000004ce0
(r=::ffff:127.0.0.1:23908<->l=::ffff:127.0.0.1:2905) contains 53 bytes in 1 blocks (ref 0) 0x60e000032ca0
struct osmo_fsm_inst contains 337 bytes in 4 blocks (ref 0) 0x612000001d20
struct xua_asp_fsm_priv contains 104 bytes in 1 blocks (ref 0) 0x6110000069a0
XUA_ASP(virt-smlc-0) contains 21 bytes in 1 blocks (ref 0) 0x60c000032260
virt-smlc-0 contains 12 bytes in 1 blocks (ref 0) 0x60b0001245b0
127.0.0.1 contains 10 bytes in 1 blocks (ref 0) 0x60b000124030
127.0.0.1 contains 10 bytes in 1 blocks (ref 0) 0x60b000123ab0
virt-smlc-0 contains 12 bytes in 1 blocks (ref 0) 0x60b000123480
struct osmo_ss7_as contains 600 bytes in 7 blocks (ref 0) 0x613000007ce0
virt-msc2 contains 10 bytes in 1 blocks (ref 0) 0x60b000122140
struct osmo_fsm_inst contains 340 bytes in 4 blocks (ref 0) 0x612000001ba0
struct xua_as_fsm_priv contains 112 bytes in 1 blocks (ref 0) 0x611000006860
XUA_AS(virt-msc2) contains 18 bytes in 1 blocks (ref 0) 0x60c000031f60
virt-msc2 contains 10 bytes in 1 blocks (ref 0) 0x60b000122090
virt-msc2 contains 10 bytes in 1 blocks (ref 0) 0x60b000121fe0
struct osmo_ss7_asp contains 1081 bytes in 8 blocks (ref 0) 0x6180000048e0
struct osmo_fsm_inst contains 337 bytes in 4 blocks (ref 0) 0x612000001a20
struct xua_asp_fsm_priv contains 104 bytes in 1 blocks (ref 0) 0x611000006720
XUA_ASP(virt-msc2-0) contains 21 bytes in 1 blocks (ref 0) 0x60c000031ea0
virt-msc2-0 contains 12 bytes in 1 blocks (ref 0) 0x60b000121e80
127.0.0.1 contains 10 bytes in 1 blocks (ref 0) 0x60b000121900
127.0.0.1 contains 10 bytes in 1 blocks (ref 0) 0x60b000121380
virt-msc2-0 contains 12 bytes in 1 blocks (ref 0) 0x60b000120d50
struct osmo_ss7_as contains 600 bytes in 7 blocks (ref 0) 0x6130000070a0
virt-msc1 contains 10 bytes in 1 blocks (ref 0) 0x60b0000bda90
struct osmo_fsm_inst contains 340 bytes in 4 blocks (ref 0) 0x6120000018a0
struct xua_as_fsm_priv contains 112 bytes in 1 blocks (ref 0) 0x6110000065e0
XUA_AS(virt-msc1) contains 18 bytes in 1 blocks (ref 0) 0x60c000031ba0
virt-msc1 contains 10 bytes in 1 blocks (ref 0) 0x60b0000bd9e0
virt-msc1 contains 10 bytes in 1 blocks (ref 0) 0x60b0000bd930
struct osmo_ss7_asp contains 1081 bytes in 8 blocks (ref 0) 0x6180000044e0
struct osmo_fsm_inst contains 337 bytes in 4 blocks (ref 0) 0x612000001720
struct xua_asp_fsm_priv contains 104 bytes in 1 blocks (ref 0) 0x6110000064a0
XUA_ASP(virt-msc1-0) contains 21 bytes in 1 blocks (ref 0) 0x60c000031ae0
virt-msc1-0 contains 12 bytes in 1 blocks (ref 0) 0x60b00011ff90
127.0.0.1 contains 10 bytes in 1 blocks (ref 0) 0x60b00011fa10
127.0.0.1 contains 10 bytes in 1 blocks (ref 0) 0x60b00011f490
virt-msc1-0 contains 12 bytes in 1 blocks (ref 0) 0x60b00011ee60
struct osmo_ss7_as contains 600 bytes in 7 blocks (ref 0) 0x613000006460
virt-msc0 contains 10 bytes in 1 blocks (ref 0) 0x60b00011db20
struct osmo_fsm_inst contains 340 bytes in 4 blocks (ref 0) 0x6120000015a0
struct xua_as_fsm_priv contains 112 bytes in 1 blocks (ref 0) 0x611000006360
XUA_AS(virt-msc0) contains 18 bytes in 1 blocks (ref 0) 0x60c0000317e0
virt-msc0 contains 10 bytes in 1 blocks (ref 0) 0x60b00011da70
virt-msc0 contains 10 bytes in 1 blocks (ref 0) 0x60b00011d9c0
struct osmo_ss7_as contains 596 bytes in 7 blocks (ref 0) 0x613000005d60
mahlzeit contains 9 bytes in 1 blocks (ref 0) 0x60b00011c730
struct osmo_fsm_inst contains 338 bytes in 4 blocks (ref 0) 0x612000001420
struct xua_as_fsm_priv contains 112 bytes in 1 blocks (ref 0) 0x611000006220
XUA_AS(mahlzeit) contains 17 bytes in 1 blocks (ref 0) 0x60c0000314e0
mahlzeit contains 9 bytes in 1 blocks (ref 0) 0x60b00011c680
mahlzeit contains 9 bytes in 1 blocks (ref 0) 0x60b00011c5d0
struct osmo_ss7_asp contains 1134 bytes in 9 blocks (ref 0) 0x6180000040e0
(r=::ffff:127.0.0.1:23905<->l=::ffff:127.0.0.1:2905) contains 53 bytes in 1 blocks (ref 0) 0x60e000032bc0
struct osmo_fsm_inst contains 337 bytes in 4 blocks (ref 0) 0x6120000012a0
struct xua_asp_fsm_priv contains 104 bytes in 1 blocks (ref 0) 0x6110000060e0
XUA_ASP(virt-msc0-0) contains 21 bytes in 1 blocks (ref 0) 0x60c000031420
virt-msc0-0 contains 12 bytes in 1 blocks (ref 0) 0x60b00011c470
127.0.0.1 contains 10 bytes in 1 blocks (ref 0) 0x60b00011bef0
127.0.0.1 contains 10 bytes in 1 blocks (ref 0) 0x60b00011b970
virt-msc0-0 contains 12 bytes in 1 blocks (ref 0) 0x60b00011b340
struct osmo_ss7_route_table contains 359 bytes in 10 blocks (ref 0) 0x60e0000310a0
struct osmo_ss7_route contains 74 bytes in 2 blocks (ref 0) 0x60e000031b20
virt-smlc contains 10 bytes in 1 blocks (ref 0) 0x60b000127aa0
struct osmo_ss7_route contains 74 bytes in 2 blocks (ref 0) 0x60e000031960
virt-msc2 contains 10 bytes in 1 blocks (ref 0) 0x60b000127260
struct osmo_ss7_route contains 74 bytes in 2 blocks (ref 0) 0x60e0000317a0
virt-msc1 contains 10 bytes in 1 blocks (ref 0) 0x60b000126a20
struct osmo_ss7_route contains 74 bytes in 2 blocks (ref 0) 0x60e0000315e0
virt-msc0 contains 10 bytes in 1 blocks (ref 0) 0x60b0001261e0
system contains 7 bytes in 1 blocks (ref 0) 0x60b00011a630
struct sched_vty_opts contains 72 bytes in 1 blocks (ref 0) 0x60f000001540
../../../../src/libosmocore/src/vty/utils.c:348 contains 203 bytes in 1 blocks (ref 0) 0x612000000fa0
../../../../src/libosmocore/src/vty/utils.c:348 contains 46 bytes in 1 blocks (ref 0) 0x60d000013d80
../../../../src/libosmocore/src/vty/utils.c:348 contains 165 bytes in 1 blocks (ref 0) 0x612000000e20
../../../../src/libosmocore/src/vty/utils.c:348 contains 43 bytes in 1 blocks (ref 0) 0x60d000013cb0
logging contains 4238 bytes in 11 blocks (ref 0) 0x60b0000002b0
vty_logp_doc_str contains 998 bytes in 1 blocks (ref 0) 0x619000000ae0
vty_logp_cmd_str contains 189 bytes in 1 blocks (ref 0) 0x612000000ca0
vty_log_level_doc_str contains 791 bytes in 1 blocks (ref 0) 0x6180000024e0
vty_log_level_cmd_str contains 165 bytes in 1 blocks (ref 0) 0x612000000820
vty_log_level_doc_str contains 926 bytes in 1 blocks (ref 0) 0x6190000000e0
vty_log_level_cmd_str contains 186 bytes in 1 blocks (ref 0) 0x6120000003a0
struct log_target contains 206 bytes in 2 blocks (ref 0) 0x6110000001e0
struct log_category contains 46 bytes in 1 blocks (ref 0) 0x60d000000170
struct log_info contains 776 bytes in 2 blocks (ref 0) 0x60d0000000a0
struct log_info_cat contains 736 bytes in 1 blocks (ref 0) 0x6180000000e0
msgb contains 0 bytes in 1 blocks (ref 0) 0x608000000100
=================================================================
==10439==ERROR: LeakSanitizer: detected memory leaks
Indirect leak of 18816 byte(s) in 144 object(s) allocated from:
#0 0x7f74671d1330 in __interceptor_malloc (/lib/x86_64-linux-gnu/libasan.so.5+0xe9330)
#1 0x7f7466d8a140 in _talloc_zero (/lib/x86_64-linux-gnu/libtalloc.so.2+0x9140)
Indirect leak of 9600 byte(s) in 96 object(s) allocated from:
#0 0x7f74671d1330 in __interceptor_malloc (/lib/x86_64-linux-gnu/libasan.so.5+0xe9330)
#1 0x7f7466d8a776 in _talloc_memdup (/lib/x86_64-linux-gnu/libtalloc.so.2+0x9776)
SUMMARY: AddressSanitizer: 28416 byte(s) leaked in 240 allocation(s).
Updated by neels almost 3 years ago
in above talloc report, no entries match the numbers reported in the leaks.
are we allocating things on NULL? are we detaching tallocs from their parents?
i tried to grep around a little bit but didn't find anything yet.
Updated by Hoernchen almost 3 years ago
Most likely fixed by https://gerrit.osmocom.org/c/libosmo-sccp/+/24909 - at least my asan is happy.
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