memfd_secret: add memfd-secret file support #2247
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Change made through this commit: - Include copy of flog as a seperate tree. - Modify the makefile to add and compile flog code. Signed-off-by: prakritigoyal19 <[email protected]>
CID 302713 (checkpoint-restore#1 of 1): Missing varargs init or cleanup (VARARGS) va_end was not called for argptr. Signed-off-by: Adrian Reber <[email protected]>
Separate commit for easier criu-dev <-> master transfer. Acked-by: Mike Rapoport <[email protected]> Signed-off-by: Adrian Reber <[email protected]>
It is mapped, not maped. Same applies for mmap I guess. Found by codespell, except it wants to change it to mapped, which will make it less specific. Signed-off-by: Kir Kolyshkin <[email protected]>
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[v2: use "make indent" on the result]
Signed-off-by: Kir Kolyshkin <[email protected]>
Fixes: checkpoint-restore#2121 Signed-off-by: Pengda Yang <[email protected]>
The TOS(type of service) field in the ip header allows you specify the priority of the socket data. Signed-off-by: Suraj Shirvankar <[email protected]>
Signed-off-by: Suraj Shirvankar <[email protected]>
The pipe_size type is unsigned int, when the fcntl call fails and return -1, it will cause a negative rollover problem. Signed-off-by: zhoujie <[email protected]>
Newer Intel CPUs (Sapphire Rapids) have a much larger xsave area than
before. Looking at older CPUs I see 2440 bytes.
# cpuid -1 -l 0xd -s 0
...
bytes required by XSAVE/XRSTOR area = 0x00000988 (2440)
On newer CPUs (Sapphire Rapids) it grows to 11008 bytes.
# cpuid -1 -l 0xd -s 0
...
bytes required by XSAVE/XRSTOR area = 0x00002b00 (11008)
This increase the xsave area from one page to four pages.
Without this patch the fpu03 test fails, with this patch it works again.
Signed-off-by: Adrian Reber <[email protected]>
Signed-off-by: Adrian Reber <[email protected]>
Signed-off-by: Adrian Reber <[email protected]>
Using the fact that we know criu_pid and criu is a parent of restored process we can create pidfile with pid on caller pidns level. We need to move mount namespace creation to child so that criu-ns can see caller pidns proc. Signed-off-by: Pavel Tikhomirov <[email protected]>
By default, the file name 'amdgpu_plugin.txt' is used also as the name for the corresponding man page (`man amdgpu_plugin`). However, when this man page is installed system-wide it would be more appropriate to have a prefix 'criu-' (e.g., `man criu-amdgpu-plugin`). Signed-off-by: Radostin Stoyanov <[email protected]>
crun wants to set empty_ns and this interface is missing from the library. This adds it to libcriu. Signed-off-by: Adrian Reber <[email protected]>
--criu-binary argument provides a way to supply the CRIU binary location to run_criu(). Related to: checkpoint-restore#1909 Signed-off-by: Dhanuka Warusadura <[email protected]>
These changes remove and update the changes introduced in 7177938 in favor of the Python version in CI. os.waitstatus_to_exitcode() function appeared in Python 3.9 Related to: checkpoint-restore#1909 Signed-off-by: Dhanuka Warusadura <[email protected]>
These changes add test implementations for criu-ns script. Fixes: checkpoint-restore#1909 Signed-off-by: Dhanuka Warusadura <[email protected]>
These changes fix the `ImportError: No module named pathlib` error when executing criu-ns tests located at criu/test/others/criu-ns Signed-off-by: Dhanuka Warusadura <[email protected]>
CentOS 7 CI environment uses Python 2. To execute criu-ns script in CentOS 7 changing the current shebang line to python is required. This reverse the changes made in a15a63f Signed-off-by: Dhanuka Warusadura <[email protected]>
This is a patch proposed by Thomas here: https://lore.kernel.org/all/87ilczc7d9.ffs@tglx/ It removes (created id > desired id) "sanity" check and adds proper checking that ids start at zero and increment by one each time when we create/delete a posix timer. First purpose of it is to fix infinite looping in create_posix_timers on old pre 3.11 kernels. Second purpose is to allow kernel interface of creating posix timers with desired id change from iterating with predictable next id to just setting next id directly. And at the same time removing predictable next id so that criu with this patch would not get to infinite loop in create_posix_timers if this happens. Thanks a lot to Thomas! Signed-off-by: Pavel Tikhomirov <[email protected]>
This hook allows to start image streamer process from an action script. Signed-off-by: Radostin Stoyanov <[email protected]>
…tions This does cgroup namespace creation separately from joining task cgroups. This makes the code more logical, because creating cgroup namespace also involves joining cgroups but these cgroups can be different to task's cgroups as they are cgroup namespace roots (cgns_prefix), and mixing all of them together may lead to misunderstanding. Another positive thing is that we consolidate !item->parent checks in one place in restore_task_with_children. Signed-off-by: Valeriy Vdovin <[email protected]> Signed-off-by: Pavel Tikhomirov <[email protected]>
4.15-based kernels don't allow F_*SEAL for memfds created with MFD_HUGETLB. Since seals are not possible in this case, fake F_GETSEALS result as if it was queried for a non-sealing-enabled memfd. Signed-off-by: Michał Mirosław <[email protected]>
Linux 4.15 doesn't like empty string for cgroup2 mount options. Pass NULL then to satisfy the kernel check. Log the options for easier debugging. Signed-off-by: Michał Mirosław <[email protected]>
The original commit added saving THP_DISABLED flag value, but missed restoring it. There is restoring code, but used only when --lazy_pages mode is enabled. Restore the prctl flag always. While at it, rename the `has_thp_enabled` -> `!thp_disabled` for consistency. Fixes: bbbd597 (2017-06-28 "mem: add dump state of THP_DISABLED prctl") Signed-off-by: Michał Mirosław <[email protected]>
If prctl(SET_THP_DISABLE) is not used due to bad semantics, log it for easier debugging. Signed-off-by: Michał Mirosław <[email protected]>
While at it, don't carry over stale errno to the fail() message. Signed-off-by: Michał Mirosław <[email protected]>
Signed-off-by: Michał Mirosław <[email protected]>
Add a sanity check for THP_DISABLE. This discovered a broken commit in Google's kernel tree. Signed-off-by: Michał Mirosław <[email protected]>
Signed-off-by: Michal Clapinski <[email protected]>
Signed-off-by: Michal Clapinski <[email protected]>
cgroup_ifpriomap test needs net_prio cgroup, which might not be available. Make the .checkskip script check it. Signed-off-by: Michał Mirosław <[email protected]>
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Newer versions of pip use an isolated virtual environment when building Python projects. However, when the source code of CRIT is copied into the isolated environment, the symlink for `../lib/py` (pycriu) becomes invalid. As a workaround, we used the `--no-build-isolation` option for `pip install`. However, this functionality has issues in some versions of PIP [1, 2]. To fix this problem, this patch adds separate packages for pycriu and crit, and each package is installed independently. [1] pypa/pip#8221 [2] pypa/pip#8165 (comment) Signed-off-by: Radostin Stoyanov <[email protected]>
Do not use $(USERCFLAGS) for anything other than what the user provide. Signed-off-by: Marcus Folkesson <[email protected]>
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In the compel/arch/arm/plugins/std/syscalls/syscall.def, the syscall number of bind on ARM64 should be 200 instead of 235 Signed-off-by: Sally Kang <[email protected]>
The rawhide netlink errors are fixed with a newer kernel than the default 6.2 available in Fedora 38. Signed-off-by: Adrian Reber <[email protected]>
The old test was checking if '/' is btrfs but we should check if the current directory is btrfs. Signed-off-by: Adrian Reber <[email protected]>
Signed-off-by: Adrian Reber <[email protected]>
Signed-off-by: Andrei Vagin <[email protected]>
Replace a recursive call with a loop. Reported-by: Andrei Vagin <[email protected]> Signed-off-by: Radostin Stoyanov <[email protected]>
Checkpoint/restore with version 25.0.0-beta.1 fails with the following error: $ docker start --checkpoint=c1 cr Error response from daemon: failed to create task for container: content digest fdb1054b00a8c07f08574ce52198c5501d1f552b6a5fb46105c688c70a9acb45: not found: unknown Release notes: moby/moby#46816 Signed-off-by: Radostin Stoyanov <[email protected]>
WARNINGS variable should be amended, not redefined. We still need, e.g., `-Wno-dangling-pointer` to build criu on loongarch64 with gcc13. Signed-off-by: Ivan A. Melnikov <[email protected]>
If ioctl(TIOCSLCKTRMIOS) fails with EPERM it means that a CRIU process lacks of CAP_SYS_ADMIN capability. But we can use ioctl(TIOCGLCKTRMIOS) to *read* current ->termios_locked value from the kernel and if it's the same as we already have we can skip failing ioctl(TIOCSLCKTRMIOS) safely. Adrian has recently posted [1] a very good patch to allow ioctl(TIOCSLCKTRMIOS) for processes that have CAP_CHECKPOINT_RESTORE (right now it requires CAP_SYS_ADMIN). [1] https://lore.kernel.org/all/[email protected]/ Suggested-by: Andrei Vagin <[email protected]> Signed-off-by: Alexander Mikhalitsyn <[email protected]>
Newer versions of 'tail' rely on inotify and after a restore 'tail' is unhappy with the state of inotify and just stops. This replaces 'tail' with a minimal shell based test (thanks Andrei). Signed-off-by: Adrian Reber <[email protected]>
The image has a too old version of nettle which does not work with gnutls. Just upgrade to the latest to make the error go away. Signed-off-by: Adrian Reber <[email protected]>
Adds protobuf definitions needed to checkpoint and restore memfd_secret fd. Signed-off-by: Dhanuka Warusadura <[email protected]>
Adds support to save secretmem page stats when C/R a memfd_secret fd containing process. Updates images/stats.proto to add statistics about C/R memfd_secret fd. Signed-off-by: Dhanuka Warusadura <[email protected]>
See "man 2 memfd_secret". Fixes: checkpoint-restore#2188 Signed-off-by: Dhanuka Warusadura <[email protected]>
These changes update `check_pages_counts()` to support `secmempages_written` stat. Signed-off-by: Dhanuka Warusadura <[email protected]>
Adds a zdtm test to test checkpoint/restore a memfd_secret fd containing process. Signed-off-by: Dhanuka Warusadura <[email protected]>
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Fixes: #2188