- 12 Dec, 2017 4 commits
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Andrei Vagin authored
Signed-off-by:Andrei Vagin <avagin@virtuozzo.com>
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Andrei Vagin authored
Now criu create a new pipe buffer, if a previous one has another set of flags. In this case, a pipe is not full and we can use it for the next page buffer. We need 88 pipes to pre-dump the zdtm/static/fork test without this patch, and we need only 17 pipes with this patch. Acked-by:
Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by:
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Andrei Vagin authored
v2: and move it upper, because it is going to be used in ppb_alloc() Acked-by:
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Andrei Vagin authored
vmsplice can't splice more than UIO_MAXIOV, but we can call it a few times from a parasite. v2: s/nr/nr_segs/ Acked-by:
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- 29 Nov, 2017 3 commits
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Adrian Reber authored
In addition to writing the CRIU version to the log file this adds the current kernel version to the log file: (00.000008) Version: 3.5 (gitid v3.5-511-ga8cc6cf) (00.000303) Running on node01 Linux 3.10.0-513.el7.x86_64 #1 SMP Tue Feb 29 06:78:90 EST 2017 x86_64 v2: - small changes as suggested by Dmitry (thanks) Signed-off-by:
Adrian Reber <areber@redhat.com> Reviewed-by:
Dmitry Safonov <0x7f454c46@gmail.com> Signed-off-by:
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Andrei Vagin authored
If ipv6 socket has an IPv4-mapped address, it is used to handle ipv4 connection, so we have to use ipv4 iptables rules to block this connection. Reported-by: Mr Jenkins Signed-off-by: -
Andrei Vagin authored
Currently we use the "map_files/%p-%p" format, but actually it should be "map_files/%lx-%lx". The kernel could handle both formats, but recently Alexey Dobriyan fixed the kernel and it accept only the second format. Signed-off-by:
Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by:
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- 23 Nov, 2017 33 commits
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Andrei Vagin authored
We always ask users what version of criu they use to investigate a problem, so it better to have it in a log. Signed-off-by:
Andrei Vagin <avagin@openvz.org> Reviewed-by:
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Andrei Vagin authored
criu and soccr has different values for log levels, so someone has to remap them. Cc: Cyrill Gorcunov <gorcunov@openvz.org> Reported-by:
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root authored
This can help to investigate logs from Mr Jenkins. Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by:
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Cyrill Gorcunov authored
When inotify is laying on uovermounted fs we should walk over all mountpoints with same s_dev to find openable path. Note on restore the path is usually already allocated during dump stage so get_mark_path won't call for open_handle(), in turn on dump stage the positive return from open_handle() will cause fsnotify engine to find openable path, thus there is kind of double work to be optimized in future. For example we got a container where systemd-udevd inside opens inotify for /dev/X entry then overmount ./dev path with slave option and in result irmap engine on predump can't figure out where the inotify is sitting causing migrtion to abort. Signed-off-by:
Cyrill Gorcunov <gorcunov@virtuozzo.com> Signed-off-by:
Pavel Emelyanov <xemul@virtuozzo.com>
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Dmitry Safonov authored
config.h is a generated file with "build-features" defines. We use it for several purposes: o to check that compiler can do it's job o to complement user-visible API between distributions o to add compile-time options from .config global file It's used in criu and soccr, but compel also needs such thing. Previously, soccr has a link to config.h in criu includes, but it would be much cleaner to move it to other headers, that are shared between sub-projects into include/common. Reported-by:
Dmitry Safonov <dsafonov@virtuozzo.com> Tested-by:
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Dmitry Safonov authored
Distributions starts to supply GCC that is configured to compile -pie and -fPIC code by default due to security reasons. CONFIG_COMPAT was unfriendy to -pie by the reason of R_X86_64_32S relocation in call32.S helper: LINK criu/criu /usr/bin/ld: criu/arch/x86/crtools.built-in.o: relocation R_X86_64_32S against `.text' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: final link failed: Nonrepresentable section on output collect2: error: ld returned 1 exit status make[1]: *** [criu/Makefile:92: criu/criu] Error 1 make: *** [Makefile:225: criu] Error 2 Use %rip-relative addressing to avoid ld errors for shared binary linking. Puff, all needs to be done with bare hands! Now CONFIG_COMPAT can be used with -pie binaries and all should also work for debian toolchain (#315). Signed-off-by:
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Andrei Vagin authored
v2: typo fix v3: run criu pre-dump via rpc v4: don't use status-fd for rpc Signed-off-by: -
Andrei Vagin authored
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Andrei Vagin authored
In this case we can wait it and get an exit code. For example, it will be useful for p.haul where one connection is used several times, so we need a way how to understand that page-server exited unexpectedly. v2: don't write ps_info if a start descriptor isn't set Signed-off-by: -
Cyrill Gorcunov authored
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Cyrill Gorcunov authored
So they can be reused. Signed-off-by:
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Cyrill Gorcunov authored
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Avindra Goolcharan authored
This file is not executable directly, so it should not have the shebang. Signed-off-by:
Avindra Goolcharan <aavindraa@gmail.com> Signed-off-by:
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Pavel Begunkov authored
warning: In the GNU C Library, "major" is defined by <sys/sysmacros.h>. For historical compatibility, it is currently defined by <sys/types.h> as well, but we plan to remove this soon. To use "major", include <sys/sysmacros.h> directly. If you did not intend to use a system-defined macro "major", you should undefine it after including <sys/types.h>. if (major(st.st_rdev) != major(st_rtc.st_rdev) || Signed-off-by:
Pavel Begunkov <asml.silence@gmail.com> Signed-off-by:
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Cyrill Gorcunov authored
aio_context_t is 8 byte long so on 32 bit mode it might be strippped off when unsigned long used instead. Fix this typo. Signed-off-by:
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Andrei Vagin authored
v2: defining crit_bin and using it for Popen() // Mike Acked-by:
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Andrei Vagin authored
The number of pipes are limited in a system, so it is better to know how many we use. Acked-by:
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Andrei Vagin authored
A server socket is created with AF_INET6, but a client socket is create with AF_INET. Signed-off-by: -
Andrei Vagin authored
IPv6 listening sockets can accept both ipv4 and ipv6 connections, in both cases a family of an accepted socket will be AF_INET6. But we have to send tcp packets accoding with a connection type. ------------------------ grep Error ------------------------ (00.002320) 53: Debug: Will set rcv_wscale to 7 (00.002325) 53: Debug: Will turn timestamps on (00.002331) 53: Debug: Will set mss clamp to 65495 (00.002338) 53: Debug: Restoring TCP 1 queue data 2 bytes (00.002403) 53: Error (soccr/soccr.c:673): Unable to send a fin packet: libnet_write_raw_ipv6(): -1 bytes written (Network is unreachable) (00.002434) 53: Error (criu/files.c:1191): Unable to open fd=3 id=0x6 (00.002506) Error (criu/cr-restore.c:2171): Restoring FAILED. ------------------------ ERROR OVER ------------------------ Signed-off-by:
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Andrei Vagin authored
The SO_REUSEPORT option allows multiple sockets on the same host to bind to the same port. This option has to ve restored when all sockets are bound to a port. The same logic is already used to restore SO_REUSEADDR. Signed-off-by: -
Andrei Vagin authored
SO_REUSEPORT allows multiple sockets on the same host to bind to the same port. Signed-off-by: -
Cyrill Gorcunov authored
Regs are present in unsigned format so convert them into signed first to provide results. In particular if memfd_create syscall failed we won't notice -ENOMEM error but rather treat it as unsigned hex value | (05.303002) Putting parasite blob into 0x7f1c6ffe0000->0xfffffff4 | (05.303234) Putting tsock into pid 42773 Signed-off-by:
Dmitry Safonov <dima@arista.com> Signed-off-by:
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Cyrill Gorcunov authored
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Cyrill Gorcunov authored
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Cyrill Gorcunov authored
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Cyrill Gorcunov authored
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Cyrill Gorcunov authored
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Pavel Tikhomirov authored
Signed-off-by:
Pavel Tikhomirov <ptikhomirov@virtuozzo.com> Signed-off-by:
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Pavel Tikhomirov authored
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Pavel Tikhomirov authored
In CT, we do: mkdir -p /a/b/c1 mkdir -p /c2 mount --bind /c2 /a/b/c1 mount --rbind /a/b /a And after that container is not dumpable with error: mnt: Unable to handle mounts under 146:./a Just because overmounts with shared parent group are prohibited, but I can't see any problem with enabling them. https://jira.sw.ru/browse/PSBM-69501Signed-off-by:
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Pavel Tikhomirov authored
What we do before patch: 1) If we are NOT in the same shared group - if we have some parent's shared group member unmounted, we just wait for it. 2) If we are in the same group - we wait only for members with root path len shorter than ours. That is done to make child mount propagate in all shared group, but I think it is wrong, e.g.: mkdir -p /dir/a/b/c /d /e /f mount --bind /dir/a /d mount --bind /dir/a/b /e mount --bind /f /e/c Before c/r we have: 507 114 182:1017985 / / rw,relatime shared:63 master:60 - ext4 /dev/ploop63624p1 rw,data=ordered,balloon_ino=12 144 507 182:1017985 /dir/a /d rw,relatime shared:63 master:60 - ext4 /dev/ploop63624p1 rw,data=ordered,balloon_ino=12 146 507 182:1017985 /dir/a/b /e rw,relatime shared:63 master:60 - ext4 /dev/ploop63624p1 rw,data=ordered,balloon_ino=12 148 146 182:1017985 /f /e/c rw,relatime shared:63 master:60 - ext4 /dev/ploop63624p1 rw,data=ordered,balloon_ino=12 150 507 182:1017985 /f /dir/a/b/c rw,relatime shared:63 master:60 - ext4 /dev/ploop63624p1 rw,data=ordered,balloon_ino=12 149 144 182:1017985 /f /d/b/c rw,relatime shared:63 master:60 - ext4 /dev/ploop63624p1 rw,data=ordered,balloon_ino=12 After c/r we have: 600 132 182:1017985 / / rw,relatime shared:63 master:60 - ext4 /dev/ploop63624p1 rw,data=ordered,balloon_ino=12 602 600 182:1017985 /f /dir/a/b/c rw,relatime shared:63 master:60 - ext4 /dev/ploop63624p1 rw,data=ordered,balloon_ino=12 603 600 182:1017985 /dir/a /d rw,relatime shared:63 master:60 - ext4 /dev/ploop63624p1 rw,data=ordered,balloon_ino=12 604 600 182:1017985 /dir/a/b /e rw,relatime shared:63 master:60 - ext4 /dev/ploop63624p1 rw,data=ordered,balloon_ino=12 There is no propagation as all mounts are in same shared group and 602(150) has shorter root than 603(144) and 604(146). What we should do: Wait member of our parent's shared group only if it has our 'sibling' mount in it. Sibling mount is the one which had propagated to shared mount of our parent for us when we were mounted. We need to enforce propagation only for these case. https://jira.sw.ru/browse/PSBM-69501Signed-off-by:
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Cyrill Gorcunov authored
The anonymous shared memory are using shmid for image name encoding which is unsigned long and we already met scenario where high bits get strippped off thus the restore failed. Lets use unsigned long here, and because pagemap code is shared between plain memory and anon shared memory use unsigned long every where. Signed-off-by:
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Cyrill Gorcunov authored
The index comes from mnt_id which is signed integer both in kernel and in userspace, but negative value is never valid, thus don't use it. Signed-off-by:
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