[Bug 1773148] Re: /lib/systemd/systemd-journald:6:fsync:fsync_directory_of_file:journal_file_rotate:do_rotate:server_rotate

[Dimitri John Ledkov]

journald appears to sigabort upon rotating systemd journal file, in
fsync... 😱

#0  0x00007f6d47f7c237 in fsync (fd=46) at ../sysdeps/unix/sysv/linux/fsync.c:27
        resultvar = 0
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
#1  0x00007f6d47abf6a0 in fsync_directory_of_file.lto_priv.56 (fd=<optimized out>) at ../src/journal/journal-file.c:483
        path = 0x55c0f3ce1540 "/var/log/journal/<valid uuid>/system@<valid uuid>-0000000000<suffix>-000<another-suffix>.journal"
        dn = 0x55c0f3cda680 "/var/log/journal/<same uuid>"
        dfd = 46
        st = {st_dev = 64768, st_ino = 29360293, st_nlink = 1, st_mode = 33184, st_uid = 0, st_gid = 101, __pad0 = 0, st_rdev = 0, st_size = 134217728, st_blksize = 4096, st_blocks = 262152, st_atim = {tv_sec = 1523965107, tv_nsec = 217770755}, st_mtim = {tv_sec = 1523965108, tv_nsec = 564627151}, st_ctim = {tv_sec = 1523965108, tv_nsec = 564627151}, __glibc_reserved = {0, 0, 0}}
        r = <optimized out>
#2  0x00007f6d47b347a7 in journal_file_rotate (f=0x7fffc919e0c0, compress=<optimized out>, seal=<optimized out>, deferred_closes=0x55c0f3cd2e00) at ../src/journal/journal-file.c:3496
        p = 0x55c0f3ce1470 "/var/log/journal/<valid uuid>/system@<valid uuid>-0000000000<suffix>-000<another-suffix>.journal"
        l = <optimized out>
        old_file = 0x55c0f3d27760
        new_file = 0x0
        r = <optimized out>
        __PRETTY_FUNCTION__ = "journal_file_rotate"
#3  0x000055c0f2c80f71 in do_rotate (s=<optimized out>, f=0x7fffc919e0c0, name=0x55c0f2c8bae7 "system", seal=<optimized out>, uid=0) at ../src/journal/journald-server.c:466
#4  0x000055c0f2c810ce in server_rotate (s=0x7fffc919e020) at ../src/journal/journald-server.c:488
#5  0x000055c0f2c8372b in write_to_journal (priority=6, n=21, iovec=0x7fffc919a880, uid=0, s=0x7fffc919e020) at ../src/journal/journald-server.c:717
#6  dispatch_message_real (s=0x7fffc919e020, iovec=0x7fffc919a880, n=21, m=<optimized out>, c=<optimized out>, tv=<optimized out>, priority=6, object_pid=0) at ../src/journal/journald-server.c:877
#7  0x000055c0f2c83a78 in server_driver_message (s=0x7fffc919e020, object_pid=<optimized out>, message_id=<optimized out>, format=<optimized out>) at ../src/journal/journald-server.c:911
#8  0x000055c0f2c88692 in dev_kmsg_record (l=163, p=<optimized out>, s=0x7fffc919e020) at ../src/journal/journald-kmsg.c:160
#9  server_read_dev_kmsg (s=<optimized out>, s=<optimized out>) at ../src/journal/journald-kmsg.c:346
#10 0x00007f6d47abb160 in source_dispatch (s=s at entry=0x55c0f3cd44d0) at ../src/libsystemd/sd-event/sd-event.c:2303
#11 0x00007f6d47abb3fa in sd_event_dispatch (e=<optimized out>, e at entry=0x55c0f3cd3f10) at ../src/libsystemd/sd-event/sd-event.c:2663
#12 0x00007f6d47abb589 in sd_event_run (e=<optimized out>, timeout=18446744073709551615) at ../src/libsystemd/sd-event/sd-event.c:2723
#13 0x000055c0f2c78b16 in main (argc=<optimized out>, argv=<optimized out>) at ../src/journal/journald.c:110

** Also affects: systemd (Ubuntu Cosmic)
   Importance: Undecided
       Status: New

** Also affects: systemd (Ubuntu Bionic)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1773148

Title:
  /lib/systemd/systemd-
  journald:6:fsync:fsync_directory_of_file:journal_file_rotate:do_rotate:server_rotate

Status in systemd package in Ubuntu:
  New
Status in systemd source package in Bionic:
  New
Status in systemd source package in Cosmic:
  New

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem regarding systemd.  This problem was most recently seen with package version 237-3ubuntu10, the problem page at https://errors.ubuntu.com/problem/ff29f7ff39be0e227f0187ad72e5d458e95f6fcf contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
  If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.

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