- 15 Feb, 2012 8 commits
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Kinsbursky Stanislav authored
This patch introduces the following changes: 1) writing of shmid value into vma_area->fd instead of waiting for shared memory region is open by parent, reopen it and dump fd. 2) new syscall support: sys_shmat 3) use sys_shmat() to map memory region in restorer's mapping function if vma flag VMA_AREA_SYSVIPC is set. Signed-off-by:
Stanislav Kinsbursky <skinsbursky@openvz.org> Acked-by:
Pavel Emelyanov <xemul@parallels.com> Signed-off-by:
Cyrill Gorcunov <gorcunov@openvz.org>
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Kinsbursky Stanislav authored
SYSV IPC segment map will be added there in further patch in the series Signed-off-by:
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Kinsbursky Stanislav authored
Returning shmid value of not enough, because SYSV IPC shmid equal to zero is a valid value. Signed-off-by:
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Kinsbursky Stanislav authored
This patch introduces the following changes: 1) introduces new flag VMA_AREA_SYSVIPC to mark corresponding vma entries. 2) enhance task /proc/<pid>/maps parsing to obtain first 5 letters of mapped file. If device major file belong to ins equal to 0 (tmpfs) and it's name starts with "/SYSV", then this mapping is considered as SYSV IPC and corresponding vma entry status is updated with VMA_AREA_SYSVIPC flag. 3) omit dumping of mapping pages for SYSV IPC vmas. Signed-off-by:
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https://github.com/avagin/crtoolsCyrill Gorcunov authored
* 'zdtm' of https://github.com/avagin/crtools: zdtm: remove white spaces zdtm: transmit to crtools dump zdtm: don't kill test processes in case an error
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Andrey Vagin authored
Signed-off-by:Andrey Vagin <avagin@gmail.com>
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Andrey Vagin authored
This functionality is used to check that dump isn't destructive. Signed-off-by: -
Andrey Vagin authored
We want to have maximum info about an error. Signed-off-by:
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- 14 Feb, 2012 28 commits
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Kir Kolyshkin authored
These defines are already provided by unistd.h, and the only user is log.c which already includes unistd.h. Signed-off-by:
Kir Kolyshkin <kir@openvz.org> Signed-off-by:
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Kinsbursky Stanislav authored
Signed-off-by:
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Kinsbursky Stanislav authored
Signed-off-by:
Stanislav Kinsbursky <skinsbursky@parallels.com> Acked-by:
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Kinsbursky Stanislav authored
Signed-off-by:
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Kinsbursky Stanislav authored
v2: New "MSG_STEAL" functionality is used Signed-off-by:
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Kinsbursky Stanislav authored
Signed-off-by:
Andrew Vagin <avagin@parallels.com> Signed-off-by:
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Cyrill Gorcunov authored
* avagin/zdtm: zdtm: transmit to crtools dump zdtm: don't kill test processes in case an error zdtm: add static/shm test to IPC ns tests list zdtm: don't wait in IPC queue on message operations
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Cyrill Gorcunov authored
- mmap_seized returns only NULL on error, drop redumdant test - setup control block in one group - no need for err_free label, xfree handles NULL easily - prepare registers for munmap_seized call on error path Signed-off-by:
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Cyrill Gorcunov authored
- err_restore_full label is redundant - must try to restore poked area if it's parially corrupted Signed-off-by:
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Cyrill Gorcunov authored
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Cyrill Gorcunov authored
No func changes. Signed-off-by:
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Cyrill Gorcunov authored
It actually not a problem since we never reach a tail out of blob, but better to be on a safe side (after all there is no guarantee that .data section will not end up exactly at blob final bytes). Signed-off-by:
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Cyrill Gorcunov authored
Otherwise weird address might be dereferenced. Signed-off-by:
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Cyrill Gorcunov authored
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Cyrill Gorcunov authored
They are not needed at moment but will be needed at parasite/restorer code rework time, so add them now just to not forget. Signed-off-by:
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Cyrill Gorcunov authored
Some names may be "dot" mangled. Signed-off-by:
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Cyrill Gorcunov authored
Signed-off-by:
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Cyrill Gorcunov authored
Signed-off-by:
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Cyrill Gorcunov authored
It's pretty convenient to have asm generated code at hands if hunting weird problems. Signed-off-by:
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Cyrill Gorcunov authored
We will need it for parasite. Signed-off-by:
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Cyrill Gorcunov authored
Signed-off-by:
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Cyrill Gorcunov authored
Signed-off-by:
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Cyrill Gorcunov authored
Easier to read. Signed-off-by:
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Andrey Vagin authored
This functionality is used to check that dump isn't destructive.
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Andrey Vagin authored
We want to have maximum info about an error.
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Kinsbursky Stanislav authored
Signed-off-by:
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Kir Kolyshkin authored
...and move tags/cscope removal to it. 'make clean' is traditionally used to remove all compiler-generated stuff in order to do a clean rebuild. 'make distclean' cleans more, it is used to prepare sources for 'make dist' (creating a source tarball). It is unfortunate to find out you have to run 'make tags cscope' every time after 'make clean'. Signed-off-by:
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Kir Kolyshkin authored
In the beginning it was the Word, and the Word was .space. Later, .skip was introduced as a synonym for .space, initially only for 680x0 platform. But the sole reason for this patch is that I use clang/llvm to check the code and unfortunately it does not understand .skip, printing long ugly warnings I'd like to avoid. Signed-off-by:
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- 13 Feb, 2012 1 commit
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Kinsbursky Stanislav authored
This name for the structure is obfuscating, because the structure will be used also for queues and semaphores sets migration. This patch renames this structure int ipc_desc_entry. It also renames all related functions and prints to reflect structure name change. Signed-off-by:
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- 12 Feb, 2012 3 commits
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Pavel Emelyanov authored
Signed-off-by:
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Pavel Emelyanov authored
Since we now have the parasite memory shared with crtools process we can just memcpy this data between them. Signed-off-by:
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Pavel Emelyanov authored
I don't like that we poke the parasite into remote space with 4k calls to ptrace. Now we have the /proc/pid/map_files/ dir which helps us sharing a mapping with some other process. Use this -- map the remote area for parasite locally and put the parasite blob into it with simple memcpy. Signed-off-by:
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