View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0003189 | GNUnet | transport service | public | 2013-12-10 13:28 | 2024-05-03 13:58 |
| Reporter | Christian Grothoff | Assigned To | Christian Grothoff | ||
| Priority | urgent | Severity | crash | Reproducibility | have not tried |
| Status | closed | Resolution | fixed | ||
| Product Version | Git master | ||||
| Target Version | 0.10.0 | Fixed in Version | 0.10.0 | ||
| Summary | 0003189: segfault in gnunet-service-dv.c:849 | ||||
| Description | (gdb) ba #0 __memcmp_sse4_1 () at ../sysdeps/x86_64/multiarch/memcmp-sse4.S:1529 #1 0x00007f7dbf24049f in build_set (cls=0x7f7dc10d5ce0) at gnunet-service-dv.c:849 #2 0x00007f7dbe5b7565 in impl_send_continue (cls=0x7f7dc10d5a00, tc=0x7fffcab07460) at mq.c:292 #3 0x00007f7dbe5c7341 in run_ready (rs=0x7f7dc10d8a50, ws=0x7f7dc10d8ae0) at scheduler.c:595 #4 0x00007f7dbe5c7c94 in GNUNET_SCHEDULER_run (task=0x7f7dbe5d4dbd <service_task>, task_cls=0x7fffcab076a0) at scheduler.c:817 #5 0x00007f7dbe5d6abf in GNUNET_SERVICE_run (argc=3, argv=0x7fffcab07a78, service_name=0x7f7dbf244ac5 "dv", options=GNUNET_SERVICE_OPTION_NONE, task=0x7f7dbf2441f7 <run>, task_cls=0x0) at service.c:1478 #6 0x00007f7dbf2443cd in main (argc=3, argv=0x7fffcab07a78) at gnunet-service-dv.c:2122 (gdb) print target $12 = (struct Target *) 0x8 Clearly when target was constructed, the indexing into consensi[] returned a NULL pointer. Sadly, since then, *neighbor was updated. The current values at the time of the crash are: (gdb) print *neighbor $13 = {peer = {public_key = {q_y = "\200\337\061i\n\245\244\b\224\246\277]\355\351\334 \022\273\016q\263 \224\353f6\321_+!\233\271"}}, real_session_id = {bits = {903782939, 105276519, 893861766, 443529465, 4049140586, 1025629340, 1128168464, 3308346828, 4049149101, 4201887470, 570138712, 2585337158, 239320448, 492669314, 1858179195, 1149247836}}, pm_head = 0x0, pm_tail = 0x0, cth = 0x0, neighbor_table = 0x0, neighbor_table_consensus = 0x0, my_set = 0x7f7dc10dd210, set_op = 0x7f7dc10e8650, listen_handle = 0x0, initiate_task = 0, consensus_insertion_offset = 4, consensus_insertion_distance = 1, pm_queue_size = 0, consensus_elements = 2, direct_route = 0x7f7dc10df3e0, target_removed = 0, distance = 1, network = 2, connected = 1} | ||||
| Tags | No tags attached. | ||||
|
|
Tried to fix in SVN 31263 by moving code to move past NULL, as it might have run in a different task and concurrent modification might have caused the issue otherwise. |
|
|
Seems fixed now. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2013-12-10 13:28 | Christian Grothoff | New Issue | |
| 2013-12-10 15:34 | Christian Grothoff | Note Added: 0007829 | |
| 2013-12-10 15:40 | Christian Grothoff | Note Added: 0007830 | |
| 2013-12-10 15:40 | Christian Grothoff | Status | new => resolved |
| 2013-12-10 15:40 | Christian Grothoff | Fixed in Version | => 0.10.0 |
| 2013-12-10 15:40 | Christian Grothoff | Resolution | open => fixed |
| 2013-12-10 15:40 | Christian Grothoff | Assigned To | => Christian Grothoff |
| 2013-12-24 20:54 | Christian Grothoff | Status | resolved => closed |
| 2024-05-03 13:58 | Christian Grothoff | Category | DV service or transport => transport service |
