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Fixes the following build error:
CCLD coredumpctl
src/journal/coredumpctl.o: In function `save_core':
/src/systemd-master/src/journal/coredumpctl.c:656:
undefined reference to `decompress_stream'
collect2: error: ld returned 1 exit status
make[2]: *** [coredumpctl] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2
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Add Compression={none,xz} and CompressionLevel=0-9 settings. Defaults
are xz/6.
Compression=filesystem may be added later.
I picked "xz" for the compression "type", since we might want to add
different compressors later on. XZ is fairly memory and CPU intensive, and
embedded users will likely want to use LZO or some other lightweight compression
mechanism.
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Unfortunately the core is first written uncompressed, then compressed
by reading from disk and writing to the output file. This is ugly and
slow, but I don't see a way around, if we want to get the backtrace
without keeping everything in memory.
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Journal might be functional even if we cannot write to
/var/lib/systemd/coredump.
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Kernel mangles comm information in an irreversible way when comm
constains repeated spaces. Retrieve comm information from /proc, and
only fallback to the information provided on the commandline when
retrieving information from /proc fails.
Add exe information to the list of saved xattr.
https://bugs.freedesktop.org/show_bug.cgi?id=62043
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The correct path is now <sys/xattr.h> (from glibc-headers) and no longer
<attr/xattr.h> (from libattr-devel.)
Fixes: 34c10968cbe3b5591b3c0ce225b8694edd9709d0
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Now that we actually can distuingish system and normal users there's no
point in taking session information into account anymore when splitting
up logs.
This has the beenfit with that coredump information will actually end up
in each user's own journal.
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only
"coredumpctl info -1" is now incredibly useful for showing the most recent
stacktrace.
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elfutils' libdw is maintained, can read DWARF debug data and appears to
be the library of choice for generating backtraces today.
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about a coredump
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Introduce a new configuration file /etc/systemd/coredump.conf to
configure when to place coredumps in the journal and when on disk.
Since the coredumps are quite large, default to storing them only on
disk.
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The file should have been in /usr/lib/ in the first place, since it
describes the OS container in /usr (and not the configuration in /etc),
hence, let's support os-release files in /usr/lib as fallback if no
version in /etc exists, following the usual override logic.
A prior commit already enabled tmpfiles to create /etc/os-release as a
symlink to /usr/lib/os-release should it be missing, thus providing nice
compatibility with applications only checking in /etc.
While it's probably a good idea if all apps check both locations via a
fallback logic, it is only necessary in the early boot process, as long
as the /etc/os-release symlink has not been restored, in case we boot
with an empty /etc.
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"m" so far has been a non-globbing version of "z". Since this makes it
quite redundant, let's get rid of it. Remove "m" from the man pages,
beef up "z" docs instead, and make "m" nothing more than a compatibility
alias for "z".
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This way we can make the socket also available for sandboxed apps that
have their own private /dev. They can now simply symlink the socket from
/dev.
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We shouldn't destroy IPC objects of system users on logout.
http://lists.freedesktop.org/archives/systemd-devel/2014-April/018373.html
This introduces SYSTEM_UID_MAX defined to the maximum UID of system
users. This value is determined compile-time, either as configure switch
or from /etc/login.defs. (We don't read that file at runtime, since this
is really a choice for a system builder, not the end user.)
While we are at it we then also update journald to use SYSTEM_UID_MAX
when we decide whether to split out log data for a specific client.
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No functional change expected :)
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introduced in cafc7f91306ea17ace4a6c3d76d81c8780c87452
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... it turns out that the duplicates in our own catalog were not real
duplicates, but translations.
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- Negative/positive errno mixup caused duplicates not to be detected properly.
Now we get a warning about some duplicate entries in our own catalogs...
- Errors in update_catalog would be ignored, but they should not be.
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greedy_realloc() and greedy_realloc0() now store the allocated
size as the count, not bytes.
Replace GREEDY_REALLOC uses with GREEDY_REALLOC_T everywhere,
and then rename GREEDY_REALLOC_T to GREEDY_REALLOC. It is just
too error-prone to have two slightly different macros which do the
same thing.
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Found with scan-build
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safe_close_pair() is more like safe_close(), except that it handles
pairs of fds, and doesn't make and misleading allusion, as it works
similarly well for socketpairs() as for pipe()s...
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CLOCK_BOOTTIME_ALARM, too
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safe_close() automatically becomes a NOP when a negative fd is passed,
and returns -1 unconditionally. This makes it easy to write lines like
this:
fd = safe_close(fd);
Which will close an fd if it is open, and reset the fd variable
correctly.
By making use of this new scheme we can drop a > 200 lines of code that
was required to test for non-negative fds or to reset the closed fd
variable afterwards.
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