- 14 Feb, 2012 24 commits
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Kinsbursky Stanislav authored
v2: New "MSG_STEAL" functionality is used 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
Signed-off-by:
Stanislav Kinsbursky <skinsbursky@parallels.com> Acked-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
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Cyrill Gorcunov authored
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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
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Cyrill Gorcunov authored
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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:
Andrey Vagin <avagin@gmail.com>
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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:
Kir Kolyshkin <kir@openvz.org> 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 13 commits
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Pavel Emelyanov authored
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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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Pavel Emelyanov authored
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Pavel Emelyanov authored
In fact all we need for parasitic syscall is -- original regs and some regs with syscall args to work on. The former one is obtained in the infect/cure code and the latter one is located (and copied from orig) nearby. That said, we can simplify all the regs passing-down code by removing intermediate instances and utilizing the top-level reg-s for this. Signed-off-by:
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Pavel Emelyanov authored
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Pavel Emelyanov authored
No need in getting regs one more time -- we have the orig_regs at hands. Signed-off-by:
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Pavel Emelyanov authored
There's no need in 3 instances of regs in arguments. One is more than enough. Plus, this one can be made static. Signed-off-by:
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Pavel Emelyanov authored
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Pavel Emelyanov authored
Right now we do syscall_seized for this, but we have the misc dumping command and the core is (after patch #3) dump after parasite, so we can get brk from the misc dump, thus avoiding one more switch to parasite. Signed-off-by:
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Pavel Emelyanov authored
This is required for patch #4 Signed-off-by:
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Pavel Emelyanov authored
It's not used in code. Signed-off-by:
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Pavel Emelyanov authored
This actually does two things: 1. The parasite code writes to pages _or_ to pages_shared file himself based on a hint given from the main program. This avoids shared pages copying in finalize_core. 2. The private pages are moved out of the core file into a separate one. This avoids private pages copying in finalize_core. The goal of this patch is a) to avoid pages copying at all (we still have one on restore, but fixing this requires Andrey's work on shared memory dumping) and b) make big blobs with pages be stored in separate files (I have plans on its format rework and unification). Signed-off-by:
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- 11 Feb, 2012 2 commits
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Kir Kolyshkin authored
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Kir Kolyshkin authored
Say in case of corrupted img file Signed-off-by:
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