- 28 Dec, 2012 1 commit
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Andrey Vagin authored
Kernel started with 3.8-rc1 are not report non-existent caps in /proc/pid/status, so crtools doesn't dump/restore such caps. Signed-off-by:
Andrey Vagin <avagin@openvz.org> Signed-off-by:
Pavel Emelyanov <xemul@parallels.com>
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- 26 Dec, 2012 3 commits
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Cyrill Gorcunov authored
We should explicitly unlink old /dev/null instance, otherwise if such device already exist we might hit a problem as | (00.002984) 7412 fdinfo 0: pos: 0x 0 flags: 100002/0 | (00.003015) Dumping path for 0 fd via self 42 [/dev/null] | (00.003025) Error (files-reg.c:422): Unaccessible path opened 2049:109720, need 5:10 | (00.003033) Error (cr-dump.c:1565): Dump files (pid: 7412) failed with -1 Reported-by:
Alexander Kartashov <alekskartashov@parallels.com> Tested-by:
Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by:
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Pavel Emelyanov authored
It was required as a temp stub for MySQL restore. Now it just spoils the code. Signed-off-by: -
Andrey Vagin authored
tproxyd is another project. Signed-off-by:
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- 25 Dec, 2012 5 commits
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Andrey Vagin authored
gcc is executed with the option --coverage. lcov creates HTML pages containing the source code annotated with coverage information. make GCOV=1 make test make gcov Look at gcov/html/index.html v2: declare the weak __gcov_flush Signed-off-by:
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Konstantin Khlebnikov authored
syscalls-x86-64.sh: 3: syscalls-x86-64.sh: Syntax error: "(" unexpected Signed-off-by:Konstantin Khlebnikov <khlebnikov@openvz.org> Signed-off-by:
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Cyrill Gorcunov authored
I've just got an interesting built problem which I never saw before (and which I can't reporoduce at moment): | `.text.unlikely' referenced in section `.text' of parasite.o: defined in discarded section `.text.unlikely' of parasite.o Including sub-text sections is a good thing anyway. Signed-off-by:
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Cyrill Gorcunov authored
- fix names in comments - add empty lines where needed - fix rbtree.h - fix syscall-types.h Signed-off-by:
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Cyrill Gorcunov authored
No func changes Signed-off-by:
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- 24 Dec, 2012 1 commit
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Pavel Emelyanov authored
Make them look like __CR_<smth>_H__ with sed -e '1,2s/#\(ifndef\|define\) _\?_\?\(CR_\)\?/#\1 __CR_/' -e '1,2s/_H_\?_\?.*$/_H__/' on every header file. Signed-off-by:
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- 21 Dec, 2012 18 commits
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Andrey Vagin authored
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Andrey Vagin authored
Currently we have an array for thread_args, but leader's thread_args is a part of task_args. Here is two problems. The array has a space for leader's thread args, but it is unused. Code which fills thread args is duplicated two times. This patch fixed both problem. It replaces thread_args on a pointer from task_args and deletes code, which fills leaders thread_args. Signed-off-by:
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Andrey Vagin authored
It's preparation for the next patch. Signed-off-by:
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Andrey Vagin authored
It should be bigger than CONFIG_LSM_MMAP_MIN_ADDR. v2: set a correct value Signed-off-by:
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Cyrill Gorcunov authored
Since we supprt FPU c/r now we can run these tests. Signed-off-by:
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Cyrill Gorcunov authored
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Cyrill Gorcunov authored
This test loads ymm0/ymm7 registers and check if after restore the contents is not changed. The test requires xsave capability to present on the test system, thus if we figure out that there is no suitable cpu provided we skip the test. Signed-off-by:
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Cyrill Gorcunov authored
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Cyrill Gorcunov authored
The test for fpu transition will require to do a runtime check for the cpu features it's running on. For this sake we need to use cpuid. Thus make it more widely available by providing in the general header. The code is adopted from the linux kernel code. Signed-off-by:
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Cyrill Gorcunov authored
Since at moment we stick with sigreturn restore we need to form a proper FPU frame and set a pointer to it inside sigreturn frame. For this sake we read the FPU image and here are two cases are possible - no fpu data at all -- nothing to restore, simpliest case - xsave frame is present but the host cpu supports only fxsave instruction: we refuse to continue, since it means there are no ymm registers on the machine where we're trying to restore - fxsave frame is present but the host cpu has xsave feature: at moment we refuse to continue, requiring complete match between "checkpoint and restore hosts", but in real we could extend logic and form complete xsave frame from fxsave and continue processing Signed-off-by:
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Cyrill Gorcunov authored
For code simplicity we reserve the maximum size which might be needed to form an FPU frame (ie for both xsave and fxsave operations). Signed-off-by:
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Cyrill Gorcunov authored
It will be carrying xsave or fxsave frame. Signed-off-by:
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Cyrill Gorcunov authored
The dumping of FPU state is done with help of ptrace facility. There are two cases which we need to handle depending on which features are available on host machine 1) The dump via ptrace(PTRACE_GETFPREGS ...) In this case the kernel will use fxsave approach inside the kenrel and provides us back the data encoded in i387_fxsave_struct format. 2) The dump via ptrace(PTRACE_GETREGSET ...) In this case the kernel will use xsave approach inside the kernel and provides us back the data encoded in xsave_struct format. In any case we decode data and save it in protobuf format. This is why core.proto file has been extended to keep new entries. Signed-off-by:
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Cyrill Gorcunov authored
And don't forget to undef them once they are not needed. Signed-off-by:
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Cyrill Gorcunov authored
Actually it was never used, just drop it. Because of backward compatibility problem we can't just zap it in protofile. Signed-off-by:
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Cyrill Gorcunov authored
The cpu we're running on must at least support fxsave feature. Signed-off-by:
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Cyrill Gorcunov authored
This patch add ability to test /proc/cpuinfo data we're interested in at the moment. The code provides the following functionality - cpu_init, to parse cpuinfo and check if the host cpu we're running on is suitable enough for FPU checkpoint/restore. If FPU present then there must be at least fxsave capability present - cpu_set_feature/cpu_has_feature helpers which provides to test certain bits and set them where needed (we need to set bits when parse cpuinfo) Note, we reserve space for all cpuinfo bits known by the kernel at moment, while use only three FPU related bits for a while. This is done because we might need to use or find out other features in future. After all it's just 40 bytes of memory needed to keep all possible bits. Signed-off-by:
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Cyrill Gorcunov authored
We will need these structures for restore FPU state via sigframe, as as we decode data provided by ptrace. Signed-off-by:
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- 20 Dec, 2012 2 commits
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Andrey Vagin authored
Signed-off-by:
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Andrey Vagin authored
A name of a unix socket should be uniq Signed-off-by:
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- 18 Dec, 2012 3 commits
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Pavel Emelyanov authored
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Pavel Emelyanov authored
Since we send _fd_ it's pointless to call chmod on image file. Signed-off-by: -
Pavel Emelyanov authored
Wrong size was used in mapping and unmapping. But since they are more-less close to each other, nobody noticed it. Signed-off-by:
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- 17 Dec, 2012 7 commits
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Pavel Emelyanov authored
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Pavel Emelyanov authored
Syntax is crtools exec -t <pid> <syscall_name> [<arguments>] Two types of arguments are supported -- plain, treated as number, passed as is to the syscall. Buffer, started with '&' -- the rest of the string is pushed to the tgt task's memory and pointer to one is passed as syscall argument. Signed-off-by: -
Pavel Emelyanov authored
Reserve the cmdline option for this and link empty file. Signed-off-by: -
Pavel Emelyanov authored
The fist part prepares ctl to controll the seized task. The 2nd one mmaps shareb buffer for data exchange. Signed-off-by: -
Pavel Emelyanov authored
This one calls a syscon on seized task. Existing mmap/munmap just use one. Signed-off-by: -
Pavel Emelyanov authored
Will be used by other code. Signed-off-by: -
Pavel Emelyanov authored
I'll include it into a place, that knows nothing about pb types. Use generic pointer instead. Signed-off-by:
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