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commit a948c4dfa170040ec5bbdcda398e881ed3b65256
Author: Oren Laadan <orenl@xxxxxxxxxxxxxxx>
Date: Wed Jul 1 06:00:27 2009 -0400
test/sigpending.c: add test case for pending signals
commit 7933c3e71de3abd48adb848de5d70e369ccdcacc
Author: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxxxxxxx>
Date: Sat Jun 27 12:27:04 2009 -0700
Use __WALL option in waitpid()
The coordinator creates the children with clone(), so pass the __WALL
option to waitpid(). Otherwise the waitpid() will fail, and bring the
container down even as the application is restarting successfully :-)
For instance, if the original app is executed as:
$ ns_exec -cpuimP pid.ptree1 -- ./ptree1 -n 2 -d 1 -w sleep
Then ns_exec creates the app in new container, with p->exit_signal 0
for the container-init. Restart correctly restores the exit_signal to
0. Because of that, we need the coordinator to use __WALL.
Signed-off-by: Sukadev Bhattiprolu <sukadev@xxxxxxxxxx>
[orenl@xxxxxxxxxxxxxxx: use __WALL in all waitpid() of coordinator]
commit 50dfc2f4ab2856bfa2b3580df2eb65bad71f2561
Author: Oren Laadan <orenl@xxxxxxxxxxxxxxx>
Date: Sun Jun 28 00:52:51 2009 -0400
mktree.c: rework the parent-child cleanup/collect logic
Misc fixes to the coodinator <=> root-task logic and, in the pidns
(where root-task isn't init) to the mktree <=> coordinator logic:
* The ret value of getpid() is cached by libc, but we bypass libc with
a direct call to clone_with_pids(). Instead use syscall(__NR_pid) to
always get a fresh ret value.
* Register SIGINT and SIGCHLD handler after forking root-task (and
coordinator), instead of before. Parent then probes that the newborn
exists before proceeding.
* Newborn children use prctl(PR_SET_PDEATHSIG...) after they verify
that the parent is indeed there.
* More complete treatment of waitpid() ret value in sigchld_handler().
Signed-off-by: Oren Laadan <orenl@xxxxxxxxxxxxxxx>
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