Container managers frequently block name_to_handle_at(), returning
EACCES or EPERM when this is issued. Accept that, and simply fall back
to to fdinfo-based checks.
Note that we accept either EACCES or EPERM here, as container managers
can choose the error code and aren't very good on agreeing on just one.
(note that this is a non-issue with nspawn, as we permit
name_to_handle_at() there, only block open_by_handle_at(), which should
be sufficiently safe).
If the unit's SourcePath is below /proc then it's a unit genreated from
a kernel resource (such as a .mount or .swap unit). And those we watch
anyway, and hence should never be out-of-date.
Fixes: #5461
Otherwise we'll hit an assert sooner or later.
This requires us to initialize ->where even if we come back in "masked"
mode, as otherwise we don't know how to operate on the automount and
detach it.
Fixes: #5441
[guest@fedora ~]$ coredumpctl
No coredumps found.
[guest@fedora ~]$ ./coredumpctl
Hint: You are currently not seeing messages from other users and the system.
Users in groups 'adm', 'systemd-journal', 'wheel' can see all messages.
Pass -q to turn off this notice.
No coredumps found.
Fixes#1733.
The only functional change is that log_notice("No journal files were found.")
is not printed any more with --quiet. log_error("No journal files were opened
due to insufficient permissions.") is still printed.
I wasn't quite sure where to put this function, but shared/ seems to be the
right place and none of the existing files seem to fit too well.
v2: rename journal_access_check to journal_access_check_and_warn.
We would only log a terse message when pid1 or systemd-journald crashed.
It seems better to reuse the normal code paths as much as possible,
with the following differences:
- if pid1 crashes, we cannot launch the helper, so we don't analyze the
coredump, just write it to file directly from the helper invoked by the
kernel;
- if journald crashes, we can produce the backtrace, but we don't log full
structured messages.
With comparison to previous code, advantages are:
- we go through most of the steps, so for example vacuuming is performed,
- we gather and log more data. In particular for journald and pid1 crashes we
generate a backtrace, and for pid1 crashes we record the metadata (fdinfo,
maps, etc.),
- coredumpctl shows pid1 crashes.
A disavantage (inefficiency) is that we gather metadata for journald crashes
which is then ignored because _TRANSPORT=kernel does not support structued
messages.
Messages for the systemd-journald "crash" have _TRANSPORT=kernel, and
_TRANSPORT=journal for the pid1 "crash".
Feb 26 16:27:55 systemd[1]: systemd-journald.service: Main process exited, code=dumped, status=11/SEGV
Feb 26 16:27:55 systemd[1]: systemd-journald.service: Unit entered failed state.
Feb 26 16:37:54 systemd-coredump[18801]: Process 18729 (systemd-journal) of user 0 dumped core.
Feb 26 16:37:54 systemd-coredump[18801]: Coredump diverted to /var/lib/systemd/coredump/core.systemd-journal.0.36c14bf3c6ce4c38914f441038990979.18729.1488145074000000.lz4
Feb 26 16:37:54 systemd-coredump[18801]: Stack trace of thread 18729:
Feb 26 16:37:54 systemd-coredump[18801]: #0 0x00007f46d6a06b8d fsync (libpthread.so.0)
Feb 26 16:37:54 systemd-coredump[18801]: #1 0x00007f46d71bfc47 journal_file_set_online (libsystemd-shared-233.so)
Feb 26 16:37:54 systemd-coredump[18801]: #2 0x00007f46d71c1c31 journal_file_append_object (libsystemd-shared-233.so)
Feb 26 16:37:54 systemd-coredump[18801]: #3 0x00007f46d71c3405 journal_file_append_data (libsystemd-shared-233.so)
Feb 26 16:37:54 systemd-coredump[18801]: #4 0x00007f46d71c4b7c journal_file_append_entry (libsystemd-shared-233.so)
Feb 26 16:37:54 systemd-coredump[18801]: #5 0x00005577688cf056 write_to_journal (systemd-journald)
Feb 26 16:37:54 systemd-coredump[18801]: #6 0x00005577688d2e98 dispatch_message_real (systemd-journald)
Feb 26 16:37:54 kernel: systemd-coredum: 9 output lines suppressed due to ratelimiting
Feb 26 16:37:54 systemd-journald[18810]: Journal started
Feb 26 16:50:59 systemd-coredump[19229]: Due to PID 1 having crashed coredump collection will now be turned off.
Feb 26 16:51:00 systemd[1]: Caught <SEGV>, dumped core as pid 19228.
Feb 26 16:51:00 systemd[1]: Freezing execution.
Feb 26 16:51:00 systemd-coredump[19229]: Process 19228 (systemd) of user 0 dumped core.
Stack trace of thread 19228:
#0 0x00007fab82075c47 kill (libc.so.6)
#1 0x000055fdf7c38b6b crash (systemd)
#2 0x00007fab824175c0 __restore_rt (libpthread.so.0)
#3 0x00007fab82148573 epoll_wait (libc.so.6)
#4 0x00007fab8366f84a sd_event_wait (libsystemd-shared-233.so)
#5 0x00007fab836701de sd_event_run (libsystemd-shared-233.so)
#6 0x000055fdf7c4a380 manager_loop (systemd)
#7 0x000055fdf7c402c2 main (systemd)
#8 0x00007fab82060401 __libc_start_main (libc.so.6)
#9 0x000055fdf7c3818a _start (systemd)
Poor machine ;)
Detect the 'Detachable' dmi chassis type properly. Use the new
'convertible' chassis class of hostnamed, instead of returning the
generic 'computer' chassis class.
If the cryptsetup service unit and swap unit for a swap device
are not strictly ordered, it might happen that the swap unit
activates/mounts the swap device before its cryptsetup service unit
has a chance to run the 'mkswap' command (that it is programmed to).
This leads to the following error:
Starting Cryptography Setup for sda3_crypt...
[ OK ] Found device /dev/mapper/sda3_crypt.
Activating swap /dev/mapper/sda3_crypt...
[ OK ] Activated swap /dev/mapper/sda3_crypt.
[ OK ] Reached target Swap.
[FAILED] Failed to start Cryptography Setup for sda3_crypt.
See 'systemctl status systemd-cryptsetup@sda3_crypt.service' for
details.
[DEPEND] Dependency failed for Encrypted Volumes.
Which happens because the swap device is already mounted:
# systemctl status systemd-cryptsetup@sda3_crypt.service
<...>
Active: failed (Result: exit-code) since Mon 2017-02-27 14:21:43 CST;
54s ago
<...>
<...> systemd[1]: Starting Cryptography Setup for sda3_crypt...
<...> mkswap[2420]: mkswap: error: /dev/mapper/sda3_crypt is mounted;
will not make swapspace
<...>
So, modify cryptsetup-generator to include a 'Before=' option for the
respective 'dev-mapper-%i.swap' device in the cryptsetup service unit.
Now, correct ordering is ensured, and the error no longer occurs:
Starting Cryptography Setup for sda3_crypt...
[ OK ] Found device /dev/mapper/sda3_crypt.
[ OK ] Started Cryptography Setup for sda3_crypt.
Activating swap /dev/mapper/sda3_crypt...
[ OK ] Reached target Encrypted Volumes.
[ OK ] Activated swap /dev/mapper/sda3_crypt.
[ OK ] Reached target Swap.
Since 95f1d6bfec we'll subscribe to unit
signals to figure out when to disconnect the pty. But that can only work
correctly if we actually subscribe to the unit's signals. Hence,
explicitly pin (and thus subscribe to) the unit we just created not only
in --wait mode but also in --pty mode.
Or to say this differently: we need to pin the unit in the same cases as
we install the signal match. 95f1d6bfec
forgot to do that.
This is relevant to make sure systemd-run works correctly in --user
mode, and correctly exits when the spawned service dies. To test:
systemd-run --user -t /bin/bash
And then press ^D. This will hang before this change, but exit cleanly
after it.
If a client pins a unit, then it makes sense to also implicitly make it
a subscriber. This is useful for clients that just want to watch one
specific unit: they can pin it and receive its messages.
Detect the 'Convertible' dmi chassis type properly. Use the new
'convertible' chassis class of hostnamed, instead of returning the
generic 'computer' chassis class.
Based on a patch by Jani Nikula <jani.nikula@intel.com>.
Add the 'convertible' type to the set of allowed chassis. This applies
to all devices that can be transformed by the user from laptop style to
tablet style.
This does not add any auto-detection, yet. It only makes 'set-chassis'
accept 'convertible' as valid input.
* Fix MIPS N64 and N32 LIB_ARCH_TUPLE
For mips, we have 3 major ABIs, they are N64, N32 and O32.
Both N32 and N64 defined __mips64__, and only N64 defined __LP64__.
GRE6 and IP6TNL address should be a IPv6.
fix :
```
Assertion 't->family == AF_INET6' failed at src/network/netdev/tunnel.c:170,
function netdev_ip6gre_fill_message_create(). Aborting.
```
With some UEFI shells LoadOptionsSize is reported being > 0
but the corresponding LoadOptions does not contain any data
(the first element has value 0).
When that happens, the stub feature that allows .cmdline to be
replaced by what's in LoadOptions ends up copying nothing/random
data to the kernel cmdline resulting in different kinds of boot
problems.
To fix this, add a check to see if LoadOptions contains data
before replacing the .cmdline.
Signed-off-by: Mikko Ylinen <mikko.ylinen@linux.intel.com>
Unit systemd-coredump@1-3854-0.service is failed/failed, not counting it.
TIME PID UID GID SIG COREFILE EXE
Fri 2017-02-24 11:11:00 EST 10002 1000 1000 6 none /home/zbyszek/src/systemd-work/.libs/lt-Sat 2017-02-25 00:49:32 EST 26921 0 0 11 error /usr/libexec/fprintd
Sat 2017-02-25 11:56:30 EST 30703 1000 1000 - - /usr/bin/python3.5
Sat 2017-02-25 13:16:54 EST 3275 1000 1000 11 present /usr/bin/bash
Sat 2017-02-25 17:25:40 EST 4049 1000 1000 11 truncated /usr/bin/bash
For info and gdb output, the filename is marked in red and "(truncated)" is
appended. (Red is necessary because the annotation is hard to see when running
under a pager.)
Fixed#3883.
A few times I have seen the hint unexpectedly. Add this so debug info
so it's easier to see what's happening.
...
Unit systemd-coredump@0-3119-0.service is failed/failed, not counting it.
Unit systemd-coredump@1-3854-0.service is activating/start-pre, counting it.
...
-- Notice: 1 systemd-coredump@.service unit is running, output may be incomplete.
We logged about this, but did not attach information directly to the log
entry. It *would* be nice to log the full untruncated size, but afaict, to do
this, we would have to read the full data from the kernel. Doing this just to
log that information seems a bit excessive, in particular when the limit could
be set quite low. So for now let's just add a boolean field.
Most of the fields in the context array come from the kernel (passed
through argv), but two are special: comm and exe. We allocate them
ourselves. We forgot to initialize context[CONTEXT_COMM] with the value
we allocated (introduced in 9aa8202314).
To simplify things, just set context[CONTEXT_COMM] and context[CONTEXT_EXE],
and free those two fields at the end.
Fixes#5442.
Implement --since/--until (-S/-U) in the same fashion as journalctl.
This lets the user filter the results a bit so it would be easier to
find relevant info in case there were many core dumps.
This patch add supports to configure IFLA_VXLAN_LOCAL
and IFLA_VXLAN_GROUP.
The "Group" is renamed to "Remote" which is a multicast address.`
```
Description=vxlan-test
Name=vxlan1
Kind=vxlan
[VXLAN]
Id=33
Local=2001:db8:2f4:4bff:fa71:1a56
Remote=FF02:0:0:0:0:0:1:9
```
output
```
ip -d link show vxlan1
16: vxlan1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1430 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/ether fe:b4:97:03:f8:e5 brd ff:ff:ff:ff:ff:ff promiscuity 0
vxlan id 33 group ff02::1:9 local 2001:db8:02f4:4bff:fa71:1a56 dev enp0s3 srcport 0 0 dstport 8472 ageing 300 noudpcsum noudp6zerocsumtx noudp6zerocsumrx addrgenmode none numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535
```
Let's just check the unified level, directly. There's really no value in
wrapping cg_unified_controllers() with this, i.e. potentially do string
comparison when there's no reason to.
Also, this makes the clal more alike cg_hybrid_unified().
We use our cgroup APIs in various contexts, including from our libraries
sd-login, sd-bus. As we don#t control those environments we can't rely
that the unified cgroup setup logic succeeds, and hence really shouldn't
assert on it.
This more or less reverts 415fc41cea.
