Watchdog Activity
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paulcrawford
Activity for Watchdog
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Yegor Yefremov modified a comment on ticket #18
I think, this patch is safe (at least I could successfully configure and build watchdog). But other warnings require more careful checks. Our new projects use CMake, I have also converted some older projects to CMake. But I also have some experince with meson.
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I think, this patch is safe (at least I could successfully configure and build watchdog). But other warings require more careful checks. Our new project use CMake, I have also converted some older projects to CMake. But I also have some experince with meson.
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Paul Crawford modified ticket #17
INSTALL: replace CVS with git
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Sadly I am also very ignorant in the ways of the automated build tools. Generally it has been Michael Meskes who has dealt with the tools relating to package management, etc.
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examples: fix typos
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examples: fix typos
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This is the full autoconf log with more warnings: configure.ac:6: warning: AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated. ./lib/autoconf/general.m4:2434: AC_DIAGNOSE is expanded from... aclocal.m4:429: AM_INIT_AUTOMAKE is expanded from... configure.ac:6: the top level configure.ac:13: warning: 'AM_CONFIG_HEADER': this macro is obsolete. configure.ac:13: You should use the 'AC_CONFIG_HEADERS' macro instead. aclocal.m4:743: AM_CONFIG_HEADER is expanded from... configure.ac:13: the...
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configure.ac: don't use the deprecated AC_OUTPUT form
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Closed via https://sourceforge.net/p/watchdog/code/ci/71986fa735456011bdc57ab26aa8b8f3746bce9f/
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Update INSTALL document
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INSTALL: replace CVS with git
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Check system page size using sysconf()
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Minor updates now applied that deal with the code review above.
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Use meaningful name for dry fork test
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Check process name has minimum for any absolute path
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Remove unnecessary NULL test
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Thanks for the feedback. That is just the zero-length process name used as a dummy, I can change it to reserve some other name to make more sense. True, it was overlooked as part of playing with your patch. Strictly speaking there is still a zombie process after the forking exists but now there is a reaping call 50ms after the main loop has run (line 539 0f watchdog.c) so most short-lived tests are only present for around 1/20 of the time as zombies. Usually I suggest folks have a simple bash script...
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Peter Rosin posted a comment on merge request #4
Hi! Right, I have tested your improved patch. It's better since it doesn't leave a zombie behind until the next watchdog loop, so that's of course nice. Thanks! I have some minor nitpicks though, if you care: The verbose output could be improved from the current watchdog: test binary returned 0 = 'no error' The new if -statement in check_bin() pointlessly rechecks if tbinary == NULL, which is impossible at that point, and the code relies on that fact already in check_processes() It could be time...
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Start-up hold-off time
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Seems the work-around is acceptable so closing this.
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Feature request: handle PID file creation race condition
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New behaviour should have fix this and no feedback to say otherwise so closing.
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Thanks for that link. Yes that is an unusual bug, most bugs stop thing executing, rather than having them continue when all should die! Hopefully Peter Rosin will respond with related testing. Regards, Paul
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Daniels Umanovskis posted a comment on merge request #4
In case you're curious why the daemon survived a kernel panic, that was due to a bug in ARM kernels that's discussed here: https://lore.kernel.org/all/BX1W47JXPMR8.58IYW53H6M5N@dragonstone/
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Restore periodic fork test mentioned in the documentation
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I have implemented the requested functionality as commit [69b46c] in a slightly different manner. Basically it now has a dummy test added if none are configured, and that simply forks and returns. Can you test this to verify that it solves the specific bug you reported? I am very surprised that panicking the kernel via sysrq-trigger did not stop daemon execution and so lead to the watchdog hardware timing-out and rebooting the system! Regards, Paul
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Restore periodic fork test
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See also: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1033246 Cheers, Peter
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Restore periodic fork test mentioned in the documentation
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Thinking about this. While it is true that some systems might be recoverable from out of memory, using the watchdog repair to do so suggests known processes with bad behaviour that might better be fixed or constrained by ulimit or systemd's cgroups capability.
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Network interface counter overflows on busy systems
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Patch applied.
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Use MemAvailable for memory calculations, if available
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The supplied patch seemed to to actually read 'FREEAVAILMEM' anywhere! That has been fixed and the rest of the logic applied.
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Use bootclk
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Applied with added check that CLOCK_BOOTTIME is defined.
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Do not guard sys/quota.h sys/swap.h and sys/reboot.h with __GLIBC__
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Now applied
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Do not guard shutdown __GLIBC__
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DCP-F laptop user committed [5ad132] on Code
Fix network interface counter overflow
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DCP-F laptop user committed [acdeac] on Code
Use MemAvailble where supported for free memory check
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DCP-F laptop user committed [d58a56] on Code
Minor - spelling corrections
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DCP-F laptop user committed [8e1fcd] on Code
Use BOOTCLK which is ticking when suspend
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Doug Nazar created ticket #16
Network interface counter overflows on busy systems
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Tobias Frost posted a comment on ticket #15
(Forgot to add attachement)
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Make ENOMEM handleable by wd-repair
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Use MemAvailable for memory calculations, if available
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Use bootclk
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Khem Raj created ticket #12
Do not guard sys/quota.h sys/swap.h and sys/reboot.h with __GLIBC__
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Fix memory leak in realloc()
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Minor tidy
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Watchdog released /watchdog/5.16/watchdog-5.16.tar.gz
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Michael Meskes committed [27abbe]
Fix a potential buffer overflow
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Remove the need to root in build process
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Remove double clearing of variables.
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Updated copyright notice
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Mark #958602 as closed, the dependency was removed already in a prior commit.
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Pepare for upload new release.
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Updated Portuguese translation
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Updated to latest Debian versions.
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It's time to release a new version.
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Removed ancient cruft.
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Treat no-memory error as irreparable
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Separate error-timer for allocatable memory
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Compute usable memory from free+buffers+cache
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Use long integers for kB values
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Move string parse to function call
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Update documentation on memory testing
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Allow enough space to read all of /proc/meminfo
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Add separate test of swap use
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Add SIGTERM delay to config file
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Add config option to ignore watchdog errors
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Set minimum refresh time to 0.2s
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Update example watchdog.conf file
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Add '-lrt' to other programs
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Merge branch 'master' of ssh://git.code.sf.net/p/watchdog/code
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Add '-lrt' to other programs
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Brackets for less ambiguous code
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Remove delay before main loops
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Enforce minimum watchdog refresh time
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Remove unused 'safe' functions
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Depreciate use of usleep()
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Apply a short wait before main loop
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Use same timing loop for wd_keepalive
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Use local variable 'err' for errno copy
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Fix 'Ignoring invalid option ... realtime=yes' message
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Simplify parsing code
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Simplify network ping code
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Add comment on function purpose
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Cosmetic - fix code indent
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Move file change code to function
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Move config file parsing to function
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Merge branch 'master' of ssh://git.code.sf.net/p/watchdog/code
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Add bracket for code future-safety
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Indent start-up information messages
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Revert patch [257654] as RPC no longer needed
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Update TODO list
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Fix stale PID for watchdog service
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Run sync() for generated PID kill lists
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Cosmetic change (consistent brackets)
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