| 2014-12-04 12:55:34 |
Alexey Kopytov |
bug |
|
|
added bug |
| 2014-12-04 12:55:52 |
Alexey Kopytov |
nominated for series |
|
percona-xtradb-cluster/5.5 |
|
| 2014-12-04 12:55:52 |
Alexey Kopytov |
bug task added |
|
percona-xtradb-cluster/5.5 |
|
| 2014-12-04 12:55:52 |
Alexey Kopytov |
nominated for series |
|
percona-xtradb-cluster/5.6 |
|
| 2014-12-04 12:55:52 |
Alexey Kopytov |
bug task added |
|
percona-xtradb-cluster/5.6 |
|
| 2014-12-04 12:56:04 |
Alexey Kopytov |
percona-xtradb-cluster/5.5: status |
New |
Triaged |
|
| 2014-12-04 12:56:13 |
Alexey Kopytov |
percona-xtradb-cluster/5.5: importance |
Undecided |
Low |
|
| 2014-12-04 12:56:18 |
Alexey Kopytov |
percona-xtradb-cluster/5.6: status |
New |
Triaged |
|
| 2014-12-04 12:56:20 |
Alexey Kopytov |
percona-xtradb-cluster/5.6: importance |
Undecided |
Low |
|
| 2014-12-04 12:56:23 |
Alexey Kopytov |
percona-xtradb-cluster/5.6: assignee |
|
Alexey Kopytov (akopytov) |
|
| 2014-12-04 12:56:30 |
Alexey Kopytov |
percona-xtradb-cluster/5.6: milestone |
|
5.6-future |
|
| 2014-12-04 16:08:13 |
Alexey Kopytov |
percona-xtradb-cluster/5.5: assignee |
|
Alexey Kopytov (akopytov) |
|
| 2014-12-04 16:08:15 |
Alexey Kopytov |
percona-xtradb-cluster/5.5: milestone |
|
future-5.5 |
|
| 2014-12-04 16:08:58 |
Alexey Kopytov |
percona-xtradb-cluster/5.5: status |
Triaged |
Fix Committed |
|
| 2014-12-04 16:09:00 |
Alexey Kopytov |
percona-xtradb-cluster/5.6: status |
Triaged |
Fix Committed |
|
| 2014-12-04 16:09:05 |
Alexey Kopytov |
branch linked |
|
lp:~akopytov/percona-xtradb-cluster/bug1382797-5.5 |
|
| 2014-12-04 16:09:12 |
Alexey Kopytov |
branch linked |
|
lp:~akopytov/percona-xtradb-cluster/bug1382797-5.6 |
|
| 2014-12-04 16:21:20 |
Alexey Kopytov |
description |
The code in the wsp::process class constructor uses posix_spawn() to create a child process. In particular, it sets the POSIX_SPAWN_SETSIGDEF flag via posix_spawnattr_setflags():
err_ = posix_spawnattr_setflags (&attr, POSIX_SPAWN_SETSIGDEF |
POSIX_SPAWN_USEVFORK);
The goal was apparently to reset the ignored (SIG_IGN) state set by the server for certain signals (e.g. SIGINT) back to their default handlers.
However, the POSIX_SPAWN_SETSIGDEF flag only makes sense when used together with a posix_spawnattr_setsigdefault() call, otherwise it has no effect because it will apply to an empty signal set. Quoting http://linux.die.net/man/3/posix_spawnattr_setsigdefault :
"
The spawn-sigdefault attribute represents the set of signals to be forced to default signal handling in the new process image (if POSIX_SPAWN_SETSIGDEF is set in the spawn-flags attribute) by a spawn operation. The default value of this attribute shall be an empty signal set.
"
As a result, the SST process spawn code does not reset any ignored signal as intended. |
The code in the wsp::process class constructor uses posix_spawn() to create a child process. In particular, it sets the POSIX_SPAWN_SETSIGDEF flag via posix_spawnattr_setflags():
err_ = posix_spawnattr_setflags (&attr, POSIX_SPAWN_SETSIGDEF |
POSIX_SPAWN_USEVFORK);
The goal was apparently to reset the ignored (SIG_IGN) state set by the server for certain signals (e.g. SIGINT) back to their default handlers.
However, the POSIX_SPAWN_SETSIGDEF flag only makes sense when used together with a posix_spawnattr_setsigdefault() call, otherwise it has no effect because it will apply to an empty signal set. Quoting http://linux.die.net/man/3/posix_spawnattr_setsigdefault :
"
The spawn-sigdefault attribute represents the set of signals to be forced to default signal handling in the new process image (if POSIX_SPAWN_SETSIGDEF is set in the spawn-flags attribute) by a spawn operation. The default value of this attribute shall be an empty signal set.
"
As a result, the SST process spawn code does not reset any ignored signals as intended. |
|
| 2014-12-09 10:42:15 |
Alexey Kopytov |
percona-xtradb-cluster/5.5: status |
Fix Committed |
Fix Released |
|
| 2014-12-09 10:42:17 |
Alexey Kopytov |
percona-xtradb-cluster/5.6: status |
Fix Committed |
Fix Released |
|
| 2015-02-16 10:21:31 |
Raghavendra D Prabhu |
percona-xtradb-cluster/5.6: milestone |
future-5.6 |
5.6.22-25.7 |
|
| 2015-03-06 14:46:15 |
Raghavendra D Prabhu |
percona-xtradb-cluster/5.5: milestone |
future-5.5 |
5.5.41-25.11 |
|
