- 09 Jul, 2012 2 commits
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Cyrill Gorcunov authored
We will need to use pointer here (to PB object) anyway so better to make it in a separate patch for bisectability sake. Signed-off-by:
Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by:
Pavel Emelyanov <xemul@parallels.com>
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Cyrill Gorcunov authored
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- 02 Jul, 2012 7 commits
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Cyrill Gorcunov authored
Address Andrew's comments - use TEST_VALUE macro instead of open coded value - use WIFx macros for child status testing - kill child/parent on error Note that it was not clear from an initiall patch change log -- the difference between fifo_wronly test case and this one is that we use fork() call here which allow us to make sure that fifo restoration code logic will be tested more widely. Basically the flowchart of the test case: parent child ------ ----- open RW fifo (slave) open RO fifo (master) open WO fifo (master) dup parent slave to slave1 ... waiting c/r to happen ... ... waking up from c/r ... send bytes to master send bytes to slave1 finish ... initiating c/r ... ... waking up from c/r ... read bytes from master read bytes from slave PASS :D Signed-off-by:
Andrew Vagin <avagin@parallels.com> Signed-off-by:
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Andrey Vagin authored
Just like for orphaned sessions, create a fake task for orphaned pgids. Signed-off-by:
Andrey Vagin <avagin@openvz.org> Signed-off-by:
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Andrey Vagin authored
As described in the previous patch, process group leaders are restored in the first phase, then all other processes restores pgid. Signed-off-by:
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Andrey Vagin authored
Pgid leader should become such before any other task tries to enter this group (with setpgid). Thus we introduce a yet another global sync point -- before it all pgid leaders call setpgid after it all the others do it. v2: wait while helpers restored pgid Signed-off-by:
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Andrey Vagin authored
A process tree is described in the array. New cases are easy for adding. Signed-off-by:
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Andrey Vagin authored
It's just easy for debugging Signed-off-by:
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Andrey Vagin authored
We can't reuse it from crtools, because zdtm is used separately. v2 syscall() returns an error code in errno. Signed-off-by:
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- 28 Jun, 2012 1 commit
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Pavel Emelyanov authored
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- 01 Jul, 2012 12 commits
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Pavel Emelyanov authored
Don't push open cb onto reg_file_into, pass it into regfiles engine as an argument. Note: I haven't merged the fifo zdtms yet, thus this patch is untested. Signed-off-by:
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Cyrill Gorcunov authored
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Cyrill Gorcunov authored
Signed-off-by:
Andrey Wagin <avagin@gmail.com> Signed-off-by:
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Cyrill Gorcunov authored
I need a special test case where fake fifo will be created by us to restore the former. Signed-off-by:
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Cyrill Gorcunov authored
Checkpoint and restore of fifo is similar to pipes c/r except the pipe end-points are named file. Because the fifo has a name we use regular files facility for fifo path c/r. Still there is a trick used to "open" fifo: the opening procedure migh sleep if a fifo's peer is not yet opened, so before doing a real open we yield a fake open procedure (with O_RDWR flag) which prevents us from sleeping even if peer is not yet ready. Also we need writable fifo end to restore data queued. v2: - add open/priv members to reg_file_info - make open_fifo_fd to use open_fe_fd - comment on pipe_id - make sure the fifo data is not restored twice v3: - drop useless fixme comment and add sane one v4: - Use restore_data flag to escape data restore duplication - Use S_ISREG for file contents copying Signed-off-by:
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Cyrill Gorcunov authored
Allow file path remap engine to create fifo nodes. Note for fifos the copy_file is not called since we will restore fifo data via pipe-data engine. v2 - no need for dev in mknod - don't reopen local copy on fifo files Signed-off-by:
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Cyrill Gorcunov authored
To reuse with fifo data restore. v2: - use image type in functions arguments instead of forcing calling side to provide file descriptor Signed-off-by:
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Cyrill Gorcunov authored
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Cyrill Gorcunov authored
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Andrey Vagin authored
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Cyrill Gorcunov authored
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Cyrill Gorcunov authored
v2: - Use do_dump_opt in dump_socket to not call lookup_socket redundantly v3: - use getsockopt to check that unconnected socket has no peername and it's not listening - do test only socket protocol since family and type will be called in dump_one_inet_fd. v4: - Move proto tests to can_dump_inet_sk - Use SOL_TCP/TCP_INFO to gather info about tcp sockets v5: - hash unconnected sockets to run BUG_ON(already-dumped) logic - no default value for sk->wqlen, use zero from xzalloc - drop bogus xfree on error Signed-off-by:
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- 28 Jun, 2012 1 commit
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Andrey Vagin authored
It fix compilation on x32 Signed-off-by:
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- 27 Jun, 2012 17 commits
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Pavel Emelyanov authored
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Pavel Emelyanov authored
And clean util.c and crtools.c from image manupulation code. Signed-off-by: -
Evgeny Antyshev authored
It may occur that the loop spins faster than clock ticks. Signed-off-by:
Evgeny Antyshev <eantyshev@parallels.com> Acked-by:
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Andrey Vagin authored
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Andrey Vagin authored
expr prints a substing length. This patch redirects output of expr to /dev/null Signed-off-by:
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Andrey Vagin authored
It requered 1m19s for executing all tests. Now it requires 38s. Signed-off-by:
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Cyrill Gorcunov authored
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Cyrill Gorcunov authored
Sometime we need sync points in testee program flow, for this reason task_waiter_ introduced. The call semantics is the following Parent Child ------ ----- task_waiter_init task_waiter_wait4 task_waiter_complete task_waiter_wait4 task_waiter_complete ... Thus initially task_waiter_init should be called to initialize all internals guts needed. Then one become waitee and calls for task_waiter_wait4, where lockid should be provided as an argument. Since it should be unique values the best option might be gettid(). The same applies to a waiter side -- it should call for task_waiter_complete and provide a lockid. Signed-off-by: -
Pavel Emelyanov authored
Strictly speaking we have to close all fds before reopening them from the image. This can be done using not yet merged nextfd syscall, but it's not yet merged :( By now just close std and 255 (bash's) descriptors. This is ugly, but I prefer to wait for the nextfd syscall. But skip the init tasks' stds becase the existing zdtm implementation uses system() in such tasks which doesn't work when all fds are closed. Signed-off-by: -
Pavel Emelyanov authored
Test with sysfs and proc as no other fs-s are currently supported. Will be fixed later. Note, that the original /proc mount is kept as the dumping code requires it for reading pagemap file with RSS info. Worth fixing it some day? Signed-off-by: -
Pavel Emelyanov authored
We need own proc for restoring mount namespace, since the proc should be umounted and mounted back diring namespace restore and I don't want to introduce a special kludge for this. One more notice -- the temp proc is mounted _after_ namespaces recreation for the same reason (it will be umounted by prepare_mnt_ns). Signed-off-by: -
Pavel Emelyanov authored
Only support virtual filesystems mount. No bindmounts or disk fs due to non trivial resolving of devices names and binmount sources. Will be implemented later. Signed-off-by: -
Pavel Emelyanov authored
The tree should already be sorted, thus the call for umount shouldn't fail. Signed-off-by: -
Pavel Emelyanov authored
Two walkers -- in forward and reverse directions -- are required for correct (u)mounting of subtrees. Implement them using a helper macro which walks the tree in both directions. Signed-off-by: -
Pavel Emelyanov authored
Namespace restore goes in two steps -- first, clean old mountpoints (except root) that are left after clone(CLONE_NEWNS) call. Next, repopulate the namespace with new mountpoints (except root) read from the image file. This patch adds the skeleton for the above -- reading the mountpoints from current proc and image and calling for mount/umount. The real action will come in further patches. Signed-off-by: -
Pavel Emelyanov authored
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Pavel Emelyanov authored
Build a tree of mountpoins that can be (u)mounted in a straight (forward or backward) order without EBUSY errors. The tree is built in two steps -- first create hierarchy based on mount iDs. Next -- resort siblings in the path depth order. Signed-off-by:
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