How to reproduce
$ systemctl set-default multi-user # https://github.com/systemd/systemd/issues/2298
$ systemctl preset-all
Failed to execute operation: Too many levels of symbolic links
$ systemctl poweroff
Fixes:
==1==
==1== HEAP SUMMARY:
==1== in use at exit: 65,645 bytes in 7 blocks
==1== total heap usage: 40,539 allocs, 40,532 frees, 30,147,547 bytes allocated
==1==
==1== 109 (24 direct, 85 indirect) bytes in 1 blocks are definitely lost in loss record 2 of 7
==1== at 0x4C2BBCF: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==1== by 0x4C2DE2F: realloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==1== by 0x23DA71: unit_file_changes_add (install.c:233)
==1== by 0x23E45D: remove_marked_symlinks_fd (install.c:453)
==1== by 0x23E267: remove_marked_symlinks_fd (install.c:405)
==1== by 0x23E641: remove_marked_symlinks (install.c:494)
==1== by 0x243A91: execute_preset (install.c:2190)
==1== by 0x244343: unit_file_preset_all (install.c:2351)
==1== by 0x18AAA2: method_preset_all_unit_files (dbus-manager.c:1846)
==1== by 0x1D8157: method_callbacks_run (bus-objects.c:420)
==1== by 0x1DA9E9: object_find_and_run (bus-objects.c:1257)
==1== by 0x1DB02B: bus_process_object (bus-objects.c:1373)
==1==
==1== LEAK SUMMARY:
==1== definitely lost: 24 bytes in 1 blocks
==1== indirectly lost: 85 bytes in 1 blocks
==1== possibly lost: 0 bytes in 0 blocks
==1== still reachable: 65,536 bytes in 5 blocks
==1== suppressed: 0 bytes in 0 blocks
==1== Reachable blocks (those to which a pointer was found) are not shown.
==1== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==1==
==1== For counts of detected and suppressed errors, rerun with: -v
==1== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)
* Use $ROOTLIBDIR/systemd always
* Don't pass $ROOTLIBDIR/systemd as the first argument:
$ cat /proc/1/cmdline
/lib/systemd/systemd/lib/systemd/systemd...
The functionality of SYSTEMD_USER_WANTS that attaches dependencies to device
units from udev rules was broken since commit b2c23da8. I guess it was due to
a mass replace s/SYSTEMD_USER/MANAGER_USER/.
Fixes:
==1== by 0x23E44C: remove_marked_symlinks_fd (install.c:453)
==1== by 0x23E256: remove_marked_symlinks_fd (install.c:405)
==1== by 0x23E630: remove_marked_symlinks (install.c:494)
==1== by 0x2427A0: unit_file_disable (install.c:1876)
==1== by 0x18A633: method_disable_unit_files_generic (dbus-manager.c:1760)
==1== by 0x18A6CA: method_disable_unit_files (dbus-manager.c:1768)
==1== by 0x1D8146: method_callbacks_run (bus-objects.c:420)
==1== by 0x1DA9D8: object_find_and_run (bus-objects.c:1257)
==1== by 0x1DB01A: bus_process_object (bus-objects.c:1373)
==1==
==1== 228 (48 direct, 180 indirect) bytes in 2 blocks are definitely lost in loss record 8 of 14
==1== at 0x4C2BBCF: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==1== by 0x4C2DE2F: realloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==1== by 0x23DA60: unit_file_changes_add (install.c:233)
==1== by 0x23DDB2: create_symlink (install.c:298)
==1== by 0x240C5C: install_info_symlink_wants (install.c:1328)
==1== by 0x240FC8: install_info_apply (install.c:1384)
==1== by 0x241211: install_context_apply (install.c:1439)
==1== by 0x242563: unit_file_enable (install.c:1830)
==1== by 0x18A06E: method_enable_unit_files_generic (dbus-manager.c:1650)
==1== by 0x18A141: method_enable_unit_files (dbus-manager.c:1660)
==1== by 0x1D8146: method_callbacks_run (bus-objects.c:420)
==1== by 0x1DA9D8: object_find_and_run (bus-objects.c:1257)
==1==
==1== 467 (144 direct, 323 indirect) bytes in 3 blocks are definitely lost in loss record 9 of 14
==1== at 0x4C2DD9F: realloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==1== by 0x23DA60: unit_file_changes_add (install.c:233)
==1== by 0x23DE97: create_symlink (install.c:320)
==1== by 0x242CFC: unit_file_set_default (install.c:1951)
==1== by 0x18A881: method_set_default_target (dbus-manager.c:1802)
==1== by 0x1D8146: method_callbacks_run (bus-objects.c:420)
==1== by 0x1DA9D8: object_find_and_run (bus-objects.c:1257)
==1== by 0x1DB01A: bus_process_object (bus-objects.c:1373)
==1== by 0x259143: process_message (sd-bus.c:2567)
==1== by 0x259326: process_running (sd-bus.c:2609)
==1== by 0x259BDC: bus_process_internal (sd-bus.c:2798)
==1== by 0x259CAD: sd_bus_process (sd-bus.c:2817)
==1==
==1== LEAK SUMMARY:
==1== definitely lost: 216 bytes in 6 blocks
==1== indirectly lost: 560 bytes in 14 blocks
==1== possibly lost: 0 bytes in 0 blocks
==1== still reachable: 65,536 bytes in 5 blocks
==1== suppressed: 0 bytes in 0 blocks
==1== Reachable blocks (those to which a pointer was found) are not shown.
==1== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==1==
Fixes:
==1== HEAP SUMMARY:
==1== in use at exit: 67,182 bytes in 91 blocks
==1== total heap usage: 70,485 allocs, 70,394 frees, 42,184,635 bytes
allocated
==1==
==1== 5,742 (696 direct, 5,046 indirect) bytes in 29 blocks are
definitely lost in loss record 4 of 7
==1== at 0x4C2DD9F: realloc (in
/usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==1== by 0x21ADDD: realloc_multiply (alloc-util.h:67)
==1== by 0x21BFB0: strv_push (strv.c:448)
==1== by 0x21C245: strv_consume (strv.c:520)
==1== by 0x21C33C: strv_extend (strv.c:559)
==1== by 0x278AD7: unit_write_drop_in (unit.c:3352)
==1== by 0x278EEB: unit_write_drop_in_private (unit.c:3403)
==1== by 0x190C21: bus_service_set_transient_property
(dbus-service.c:254)
==1== by 0x190DBC: bus_service_set_property (dbus-service.c:284)
==1== by 0x18F00E: bus_unit_set_properties (dbus-unit.c:1226)
==1== by 0x186F6A: transient_unit_from_message (dbus-manager.c:683)
==1== by 0x1872B7: method_start_transient_unit (dbus-manager.c:763)
==1==
==1== LEAK SUMMARY:
==1== definitely lost: 696 bytes in 29 blocks
==1== indirectly lost: 5,046 bytes in 58 blocks
==1== possibly lost: 0 bytes in 0 blocks
==1== still reachable: 61,440 bytes in 4 blocks
==1== suppressed: 0 bytes in 0 blocks
If a unit was pulled by a Wants= dependency but its unit file was not
present then we logged this as an error.
However Wants= might be used to configure a soft/optional dependency
on another unit, ie. start an optional service only if it's installed
otherwise simply skip it. In this case emitting an error doesn't look
appropriate.
But it's still an error if the optional dependency exists but its
activation fails for any reasons.
==1== HEAP SUMMARY:
==1== in use at exit: 61,728 bytes in 22 blocks
==1== total heap usage: 258,122 allocs, 258,100 frees, 78,219,628
bytes allocated
==1==
==1== 16 bytes in 1 blocks are definitely lost in loss record 1 of 6
==1== at 0x4C2BBCF: malloc (vg_replace_malloc.c:299)
==1== by 0x1E350E: memdup (alloc-util.c:34)
==1== by 0x135AFB: memdup_multiply (alloc-util.h:74)
==1== by 0x140F97: manager_set_default_rlimits (manager.c:2929)
==1== by 0x1303DA: manager_set_defaults (main.c:737)
==1== by 0x133A02: main (main.c:1718)
==1==
==1== 272 bytes in 17 blocks are definitely lost in loss record 2 of 6
==1== at 0x4C2BBCF: malloc (vg_replace_malloc.c:299)
==1== by 0x1E350E: memdup (alloc-util.c:34)
==1== by 0x135AFB: memdup_multiply (alloc-util.h:74)
==1== by 0x140F97: manager_set_default_rlimits (manager.c:2929)
==1== by 0x1303DA: manager_set_defaults (main.c:737)
==1== by 0x13480D: main (main.c:1828)
==1==
==1== LEAK SUMMARY:
==1== definitely lost: 288 bytes in 18 blocks
==1== indirectly lost: 0 bytes in 0 blocks
==1== possibly lost: 0 bytes in 0 blocks
==1== still reachable: 61,440 bytes in 4 blocks
==1== suppressed: 0 bytes in 0 blocks
==1== Reachable blocks (those to which a pointer was found) are not
shown.
==1== To see them, rerun with: --leak-check=full --show-leak-kinds=all
When a unit was started with "systemctl --user" and it failed, error
messages is printed as "systemctl status". But it should be "systemctl
--user status".
In contrast to ascii_strcasecmp_nn() it takes two character buffers with their individual length. It will then compare
the buffers up the smaller size of the two buffers, and finally the length themselves.
Properly handle RRs that begin with an asterisk label. These are the unexpanded forms of wildcard domains and appear in
NSEC RRs for example. We need to make sure we handle the signatures of these RRs properly, since they mostly are
considered normal RRs, except that the RRSIG labels counter is one off for them, as the asterisk label is always
excluded of the signature.
Allow for overriding all other machine-ids which may be present on
the system using a kernel command line systemd.machine_id or
--machine-id= option.
This is especially useful for network booted systems where the
machine-id needs to be static, or for containers where a specific
machine-id is wanted.
Daniel Mack
Martin Pitt
Evgeny Vereshchagin
Abdo Roig-Maranges
Jakub Wilk
Zbigniew Jędrzejewski-Szmek
Tom Gundersen
Lennart Poettering
Franck Bui
WaLyong Cho
Jan Synacek
Nils Carlson