vdr crasht beim Anlegen eines Timers

MarkusE · 19. Juli 2018

Mit vdr 2.4

vdr crashed with SIGSEGV in cSchedule::DecNumTimers()

Code

Jul 19 19:48:36 vdr1 vdr[14537]: [14537] timer 0 (9 2217-0015 'Mr. Right') set to event So. 22.07.2018 22:19-00:05 'Mr. Right'
Jul 19 19:48:36 vdr1 vdr[14537]: [14537] added timer 2 (9 2217-0015 'Mr. Right')
Jul 19 19:48:36 vdr1 kernel: vdr[14537]: segfault at 6c756d03f2 ip 000055cc8f1e83f8 sp 00007ffdf1ff5bf0 error 6 in vdr[55cc8f10f000+1cb000]

Code

Jul 19 19:49:04 vdr1 systemd[1]: vdr.service: Main process exited, code=dumped, status=11/SEGV
Jul 19 19:49:04 vdr1 systemd[1]: vdr.service: Failed with result 'core-dump'.

TheChief · 20. Juli 2018

Dann müsstest Du mal einen Backtrace mit dem coredump erstellen, dann sieht man wo es crashed.

MarkusE · 20. Juli 2018

Und jetzt die dumme Frage des Tages: Wo finde ich den core bei ubuntu 18.04 / systemd?

seahawk1986 · 20. Juli 2018

Wenn du über systemd ran kommen willst, brauchst du das Paket systemd-coredump (und musst vermutlich die Dateigröße für die Journal-Dateien hochsetzen, damit ein Coredump des VDR da reinpasst.

Ansonsten würde ich damit beginnen gdb und die Debug-Symbole für den VDR und seine Plugins (*-dbg Pakete) zu installieren und den VDR zum Debuggen über gdb starten:

Code

sudo -i              # falls du noch nicht root bist
apt install gdb vdr-dbg
ulimit -c unlimited  # maximale Größe für Coredumps setzen
gdb vdr
# in der gdb Konsole
# Logging in eine Datei aktivieren (standardmäßig gdb.txt,
# mit "set logging file FILENAME" kann man eine andere Datei angeben)
set logging on
# vdr starten
run
# nachdem du den Crash provoziert hast
bt
bt full

Alles anzeigen

MarkusE · 21. Juli 2018

Google hat geholfen:

Ubuntu verwendet zum Erstellen von Fehlerberichten standardmäßig apport.

apport schreibt Fehlerberichte incl. corde dumps nach /var/crash, allerdings in einem eigenen Format. Mit

Code

cd /var/crash
sudo chmod 777 _usr_lib_xorg_Xorg.0.crash
mkdir ~/test
apport-unpack _usr_bin_vdr.0.crash  ~/test

landen alle möglichen Dateien in ~/test, und auch die Datei CoreDump

MarkusE · 21. Juli 2018

Der backtrace:

Code

#0  cSchedule::DecNumTimers (this=0x6c756d0302) at epg.c:954
#1  0x000055cc8f1e843b in cEvent::DecNumTimers (this=0x7f9d01b7cf10) at epg.c:270
#2  0x000055cc8f26d8a3 in cTimer::~cTimer (this=0x55cc913e0330, __in_chrg=<optimized out>) at timers.c:139
#3  0x00007f9d53a0af2f in vdrlive::SortedTimers::Modified() () from /usr/lib/vdr/plugins/libvdr-live.so.2.4.0
#4  0x00007f9d53a0c1b9 in vdrlive::TimerManager::DoPendingWork() () from /usr/lib/vdr/plugins/libvdr-live.so.2.4.0
#5  0x00007f9d539eabc1 in vdrlive::Plugin::MainThreadHook() () from /usr/lib/vdr/plugins/libvdr-live.so.2.4.0
#6  0x000055cc8f22ae6a in cPluginManager::MainThreadHook (this=<optimized out>) at plugin.c:410
#7  0x000055cc8f1a809d in main (argc=<optimized out>, argv=<optimized out>) at vdr.c:1573

seahawk1986 · 22. Juli 2018

Wie hast du den Timer angelegt? War währenddessen ein Client des Live-Plugin mit Timerübersicht aktiv? Kannst du mal den ausführlichen Backtrace (bt full) zeigen?

MarkusE · 22. Juli 2018

Ich kann den Absturz nicht reproduzieren.

Ich habe den Timer aus dem vdr EPG angelegt.

vdr live war parallel in einen Browser offen, hat aber vermutlich keine Timer angezeigt.

Bt full zeigt

Code

#0  cSchedule::DecNumTimers (this=0x6c756d0302) at epg.c:954
No locals.
#1  0x000055cc8f1e843b in cEvent::DecNumTimers (this=0x7f9d01b7cf10) at epg.c:270
No locals.
#2  0x000055cc8f26d8a3 in cTimer::~cTimer (this=0x55cc913e0330, __in_chrg=<optimized out>) at timers.c:139
No locals.
#3  0x00007f9d53a0af2f in vdrlive::SortedTimers::Modified() () from /usr/lib/vdr/plugins/libvdr-live.so.2.4.0
No symbol table info available.
#4  0x00007f9d53a0c1b9 in vdrlive::TimerManager::DoPendingWork() () from /usr/lib/vdr/plugins/libvdr-live.so.2.4.0
No symbol table info available.
#5  0x00007f9d539eabc1 in vdrlive::Plugin::MainThreadHook() () from /usr/lib/vdr/plugins/libvdr-live.so.2.4.0
No symbol table info available.
#6  0x000055cc8f22ae6a in cPluginManager::MainThreadHook (this=<optimized out>) at plugin.c:410
        p = <optimized out>
        dll = 0x55cc90d276f0
#7  0x000055cc8f1a809d in main (argc=<optimized out>, argv=<optimized out>) at vdr.c:1573
        Now = 1532022515
        Interact = <optimized out>
        key = <optimized out>
        NewPrimaryDVB = <optimized out>
        PreviousChannelIndex = <optimized out>
        LastChannelChanged = 1532021354
        IsInfoMenu = false
        OldPrimaryDVB = 3
        Menu = 0x55cc913dcc60
        LastChannel = <optimized out>
        LastTimerChannel = -1
        PreviousChannel = {18, 4}
        CurrentSkin = <optimized out>
        LastInteract = <optimized out>
        MaxLatencyTime = 0
        InhibitEpgScan = false
        savedTm = {c_iflag = 24, c_oflag = 48, c_cflag = 38688, c_lflag = 0, c_line = 230 '\346', 
          c_cc = "\001\000\000\000\000\000\000\020\004\000\000\000\000\000\000\340HҐ@\000\000\000\a\000\000\000\000\000\000\000", c_ispeed = 0, c_ospeed = 2429604368}
        HasStdin = <optimized out>
        StartedAsRoot = <optimized out>
        VdrUser = <optimized out>
        UserDump = <optimized out>
        SVDRPport = <optimized out>
        AudioCommand = <optimized out>
        VideoDirectory = <optimized out>
        ConfigDirectory = <optimized out>
        CacheDirectory = <optimized out>
        ResourceDirectory = <optimized out>
        LocaleDirectory = <optimized out>
        EpgDataFileName = <optimized out>
        DisplayHelp = <optimized out>
        DisplayVersion = <optimized out>
        DaemonMode = <optimized out>
        SysLogTarget = <optimized out>
        MuteAudio = <optimized out>
        WatchdogTimeout = 0
        Terminal = <optimized out>
        OverrideCharacterTable = <optimized out>
        UseKbd = <optimized out>
        LircDevice = <optimized out>
        SdWatchdog = 0
        SdWatchdogTimeout = 0
        Args = <optimized out>
        PluginManager = {_vptr.cPluginManager = 0x55cc8f4e3b78 <vtable for cPluginManager+16>, static pluginManager = 0x7ffdf1ff5f80, 
          directory = 0x55cc90d27af0 "/usr/lib/vdr/plugins", lastHousekeeping = 1532022468, nextHousekeeping = 2, dlls = {<cList<cDll>> = {<cListBase> = {
                _vptr.cListBase = 0x55cc8f4e3a70 <vtable for cDlls+16>, objects = 0x55cc90d27890, lastObject = 0x55cc90d27850, count = 3, stateLock = {name = 0x0, 
                  threadId = 0, rwLock = {rwlock = pthread_rwlock_t = {Status = Not acquired, Shared = No, Prefers = Writers}, locked = 0, writeLockThreadId = 0}, 
                  state = 0, explicitModify = 0, syncStateKey = 0x0}, needsLocking = 0x0, useGarbageCollector = false}, <No data fields>}, <No data fields>}}
        long_options = {{name = 0x55cc8f29c64f "audio", has_arg = 1, flag = 0x0, val = 97}, {name = 0x55cc8f29c655 "cachedir", has_arg = 1, flag = 0x0, val = 355}, {
            name = 0x55cc8f29c65e "chartab", has_arg = 1, flag = 0x0, val = 611}, {name = 0x55cc8f29c666 "config", has_arg = 1, flag = 0x0, val = 99}, {
            name = 0x55cc8f29c66d "daemon", has_arg = 0, flag = 0x0, val = 100}, {name = 0x55cc8f28ebc5 "device", has_arg = 1, flag = 0x0, val = 68}, {
            name = 0x55cc8f29c674 "dirnames", has_arg = 1, flag = 0x0, val = 356}, {name = 0x55cc8f29c67d "edit", has_arg = 1, flag = 0x0, val = 357}, {
            name = 0x55cc8f29c682 "epgfile", has_arg = 1, flag = 0x0, val = 69}, {name = 0x55cc8f29c68a "filesize", has_arg = 1, flag = 0x0, val = 358}, {
            name = 0x55cc8f29c693 "genindex", has_arg = 1, flag = 0x0, val = 359}, {name = 0x55cc8f29c69c "grab", has_arg = 1, flag = 0x0, val = 103}, {
            name = 0x55cc8f29c6a1 "help", has_arg = 0, flag = 0x0, val = 104}, {name = 0x55cc8f29c6a6 "hide-first-recording-level", has_arg = 0, flag = 0x0, val = 72}, {
            name = 0x55cc8f29c6c1 "instance", has_arg = 1, flag = 0x0, val = 105}, {name = 0x55cc8f29c6ca "lib", has_arg = 1, flag = 0x0, val = 76}, {
            name = 0x55cc8f29c6ce "lirc", has_arg = 2, flag = 0x0, val = 364}, {name = 0x55cc8f29c6d3 "localedir", has_arg = 1, flag = 0x0, val = 620}, {
            name = 0x55cc8f29c6dd "log", has_arg = 1, flag = 0x0, val = 108}, {name = 0x55cc8f2993f8 "mute", has_arg = 0, flag = 0x0, val = 109}, {
            name = 0x55cc8f29c6e1 "no-kbd", has_arg = 0, flag = 0x0, val = 366}, {name = 0x55cc8f29c6e8 "plugin", has_arg = 1, flag = 0x0, val = 80}, {
            name = 0x55cc8f298ae0 "port", has_arg = 1, flag = 0x0, val = 112}, {name = 0x55cc8f29c6ef "record", has_arg = 1, flag = 0x0, val = 114}, {
            name = 0x55cc8f29c6f6 "resdir", has_arg = 1, flag = 0x0, val = 370}, {name = 0x55cc8f29c6fd "showargs", has_arg = 2, flag = 0x0, val = 627}, {
            name = 0x55cc8f29c706 "shutdown", has_arg = 1, flag = 0x0, val = 115}, {name = 0x55cc8f29c70f "split", has_arg = 0, flag = 0x0, val = 371}, {
            name = 0x55cc8f29c715 "terminal", has_arg = 1, flag = 0x0, val = 116}, {name = 0x55cc8f29c71e "updindex", has_arg = 1, flag = 0x0, val = 629}, {
            name = 0x55cc8f29c727 "user", has_arg = 1, flag = 0x0, val = 117}, {name = 0x55cc8f29c72c "userdump", has_arg = 0, flag = 0x0, val = 373}, {
            name = 0x55cc8f298aaf "version", has_arg = 0, flag = 0x0, val = 86}, {name = 0x55cc8f29c735 "vfat", has_arg = 0, flag = 0x0, val = 374}, {
            name = 0x55cc8f28ecf6 "video", has_arg = 1, flag = 0x0, val = 118}, {name = 0x55cc8f29c73a "watchdog", has_arg = 1, flag = 0x0, val = 119}, {name = 0x0, 
            has_arg = 0, flag = 0x0, val = 0}}
        c = -1
        CodeSet = <optimized out>
        EpgDataReader = {<cThread> = {_vptr.cThread = 0x55cc8f4e0c30 <vtable for cEpgDataReader+16>, active = false, running = false, childTid = 140313280124672, 
            childThreadId = 14540, mutex = {mutex = pthread_mutex_t = {Type = Error check, Status = Not acquired, Robust = No, Shared = No, Protocol = None}, locked = 0}, 
            description = 0x55cc90d2a6b0 "epg data reader", lowPriority = false, static mainThreadId = 14537}, <No data fields>}

Alles anzeigen

MarkusE · 22. Juli 2018

Noch mal, mit vdr-plugin-live-dbg:

Code

#0  cSchedule::DecNumTimers (this=0x6c756d0302) at epg.c:954
No locals.
#1  0x000055cc8f1e843b in cEvent::DecNumTimers (this=0x7f9d01b7cf10) at epg.c:270
No locals.
#2  0x000055cc8f26d8a3 in cTimer::~cTimer (this=0x55cc913e0330, __in_chrg=<optimized out>) at timers.c:139
No locals.
#3  0x00007f9d53a0af2f in std::_Destroy<cTimer> (__pointer=<optimized out>) at /usr/include/c++/7/bits/stl_construct.h:98
No locals.
#4  std::_Destroy_aux<false>::__destroy<cTimer*> (__last=<optimized out>, __first=0x55cc913e0330) at /usr/include/c++/7/bits/stl_construct.h:108
No locals.
#5  std::_Destroy<cTimer*> (__last=<optimized out>, __first=<optimized out>) at /usr/include/c++/7/bits/stl_construct.h:137
No locals.
#6  std::_Destroy<cTimer*, cTimer> (__last=<optimized out>, __first=<optimized out>) at /usr/include/c++/7/bits/stl_construct.h:206
No locals.
#7  std::vector<cTimer, std::allocator<cTimer> >::_M_erase_at_end (this=0x7f9d53d44380 <vdrlive::SortedTimers::Modified()::knownTimers>, __pos=<optimized out>)
    at /usr/include/c++/7/bits/stl_vector.h:1513
No locals.
#8  std::vector<cTimer, std::allocator<cTimer> >::clear (this=0x7f9d53d44380 <vdrlive::SortedTimers::Modified()::knownTimers>) at /usr/include/c++/7/bits/stl_vector.h:1248
No locals.
#9  vdrlive::SortedTimers::Modified (this=this@entry=0x7f9d53d442f0 <vdrlive::LiveTimerManager()::instance+48>) at timers.cpp:169
        knownTimers = std::vector of length 1, capacity 1 = {{<cListObject> = {_vptr.cListObject = 0x55cc8f4e5bc8 <vtable for cTimer+16>, prev = 0x0, next = 0x0}, id = 1, 
            startTime = 0, stopTime = 0, scheduleState = -1, deferred = 0, pending = false, inVpsMargin = false, flags = 1, channel = 0x55cc90e4e0e0, day = 1531951200, 
            weekdays = 0, start = 2203, stop = 35, priority = 50, fskProtection = 0, lifetime = 99, file = "RoboCop 2", '\000' <repeats 501 times>, aux = 0x0,
            remote = 0x0, event = 0x7f9d01b7cf10}}
        modified = true
        Timers_Lock = {stateKey = {stateLock = 0x55cc8f54bb00 <cTimers::timers+32>, write = false, state = -1, timedOut = false}, list = 0x55cc8f54bae0 <cTimers::timers>}
        Timers = <optimized out>
#10 0x00007f9d53a0c1b9 in vdrlive::TimerManager::DoPendingWork (this=0x7f9d53d442c0 <vdrlive::LiveTimerManager()::instance>) at timers.cpp:252
        lock = {mutex = 0x7ffdf1ff5d50, locked = 141}
#11 0x00007f9d539eabc1 in vdrlive::Plugin::MainThreadHook (this=<optimized out>) at live.cpp:67
No locals.
#12 0x000055cc8f22ae6a in cPluginManager::MainThreadHook (this=<optimized out>) at plugin.c:410
        p = <optimized out>
        dll = 0x55cc90d276f0
#13 0x000055cc8f1a809d in main (argc=<optimized out>, argv=<optimized out>) at vdr.c:1573
        Now = 1532022515
        Interact = <optimized out>
        key = <optimized out>
        NewPrimaryDVB = <optimized out>
        PreviousChannelIndex = <optimized out>
        LastChannelChanged = 1532021354
        IsInfoMenu = false
        OldPrimaryDVB = 3
        Menu = 0x55cc913dcc60
        LastChannel = <optimized out>
        LastTimerChannel = -1
        PreviousChannel = {18, 4}
        CurrentSkin = <optimized out>
        LastInteract = <optimized out>
        MaxLatencyTime = 0
        InhibitEpgScan = false
        savedTm = {c_iflag = 24, c_oflag = 48, c_cflag = 38688, c_lflag = 0, c_line = 230 '\346', 
          c_cc = "\001\000\000\000\000\000\000\020\004\000\000\000\000\000\000\340HҐ@\000\000\000\a\000\000\000\000\000\000\000", c_ispeed = 0, c_ospeed = 2429604368}
        HasStdin = <optimized out>
        StartedAsRoot = <optimized out>
        VdrUser = <optimized out>
        UserDump = <optimized out>
        SVDRPport = <optimized out>
        AudioCommand = <optimized out>
        VideoDirectory = <optimized out>
        ConfigDirectory = <optimized out>
        CacheDirectory = <optimized out>
        ResourceDirectory = <optimized out>
        LocaleDirectory = <optimized out>
        EpgDataFileName = <optimized out>
        DisplayHelp = <optimized out>
        DisplayVersion = <optimized out>
        DaemonMode = <optimized out>
        SysLogTarget = <optimized out>
        MuteAudio = <optimized out>
        WatchdogTimeout = 0
        Terminal = <optimized out>
        OverrideCharacterTable = <optimized out>
        UseKbd = <optimized out>
        LircDevice = <optimized out>
        SdWatchdog = 0
        SdWatchdogTimeout = 0
        Args = <optimized out>
        PluginManager = {_vptr.cPluginManager = 0x55cc8f4e3b78 <vtable for cPluginManager+16>, static pluginManager = 0x7ffdf1ff5f80, 
          directory = 0x55cc90d27af0 "/usr/lib/vdr/plugins", lastHousekeeping = 1532022468, nextHousekeeping = 2, dlls = {<cList<cDll>> = {<cListBase> = {
                _vptr.cListBase = 0x55cc8f4e3a70 <vtable for cDlls+16>, objects = 0x55cc90d27890, lastObject = 0x55cc90d27850, count = 3, stateLock = {name = 0x0, 
                  threadId = 0, rwLock = {rwlock = pthread_rwlock_t = {Status = Not acquired, Shared = No, Prefers = Writers}, locked = 0, writeLockThreadId = 0}, 
                  state = 0, explicitModify = 0, syncStateKey = 0x0}, needsLocking = 0x0, useGarbageCollector = false}, <No data fields>}, <No data fields>}}
        long_options = {{name = 0x55cc8f29c64f "audio", has_arg = 1, flag = 0x0, val = 97}, {name = 0x55cc8f29c655 "cachedir", has_arg = 1, flag = 0x0, val = 355}, {
            name = 0x55cc8f29c65e "chartab", has_arg = 1, flag = 0x0, val = 611}, {name = 0x55cc8f29c666 "config", has_arg = 1, flag = 0x0, val = 99}, {
            name = 0x55cc8f29c66d "daemon", has_arg = 0, flag = 0x0, val = 100}, {name = 0x55cc8f28ebc5 "device", has_arg = 1, flag = 0x0, val = 68}, {
            name = 0x55cc8f29c674 "dirnames", has_arg = 1, flag = 0x0, val = 356}, {name = 0x55cc8f29c67d "edit", has_arg = 1, flag = 0x0, val = 357}, {
            name = 0x55cc8f29c682 "epgfile", has_arg = 1, flag = 0x0, val = 69}, {name = 0x55cc8f29c68a "filesize", has_arg = 1, flag = 0x0, val = 358}, {
            name = 0x55cc8f29c693 "genindex", has_arg = 1, flag = 0x0, val = 359}, {name = 0x55cc8f29c69c "grab", has_arg = 1, flag = 0x0, val = 103}, {
            name = 0x55cc8f29c6a1 "help", has_arg = 0, flag = 0x0, val = 104}, {name = 0x55cc8f29c6a6 "hide-first-recording-level", has_arg = 0, flag = 0x0, val = 72}, {
            name = 0x55cc8f29c6c1 "instance", has_arg = 1, flag = 0x0, val = 105}, {name = 0x55cc8f29c6ca "lib", has_arg = 1, flag = 0x0, val = 76}, {
            name = 0x55cc8f29c6ce "lirc", has_arg = 2, flag = 0x0, val = 364}, {name = 0x55cc8f29c6d3 "localedir", has_arg = 1, flag = 0x0, val = 620}, {
            name = 0x55cc8f29c6dd "log", has_arg = 1, flag = 0x0, val = 108}, {name = 0x55cc8f2993f8 "mute", has_arg = 0, flag = 0x0, val = 109}, {
            name = 0x55cc8f29c6e1 "no-kbd", has_arg = 0, flag = 0x0, val = 366}, {name = 0x55cc8f29c6e8 "plugin", has_arg = 1, flag = 0x0, val = 80}, {
            name = 0x55cc8f298ae0 "port", has_arg = 1, flag = 0x0, val = 112}, {name = 0x55cc8f29c6ef "record", has_arg = 1, flag = 0x0, val = 114}, {
            name = 0x55cc8f29c6f6 "resdir", has_arg = 1, flag = 0x0, val = 370}, {name = 0x55cc8f29c6fd "showargs", has_arg = 2, flag = 0x0, val = 627}, {
            name = 0x55cc8f29c706 "shutdown", has_arg = 1, flag = 0x0, val = 115}, {name = 0x55cc8f29c70f "split", has_arg = 0, flag = 0x0, val = 371}, {
            name = 0x55cc8f29c715 "terminal", has_arg = 1, flag = 0x0, val = 116}, {name = 0x55cc8f29c71e "updindex", has_arg = 1, flag = 0x0, val = 629}, {
            name = 0x55cc8f29c727 "user", has_arg = 1, flag = 0x0, val = 117}, {name = 0x55cc8f29c72c "userdump", has_arg = 0, flag = 0x0, val = 373}, {
            name = 0x55cc8f298aaf "version", has_arg = 0, flag = 0x0, val = 86}, {name = 0x55cc8f29c735 "vfat", has_arg = 0, flag = 0x0, val = 374}, {
            name = 0x55cc8f28ecf6 "video", has_arg = 1, flag = 0x0, val = 118}, {name = 0x55cc8f29c73a "watchdog", has_arg = 1, flag = 0x0, val = 119}, {name = 0x0, 
            has_arg = 0, flag = 0x0, val = 0}}
        c = -1
        CodeSet = <optimized out>
        EpgDataReader = {<cThread> = {_vptr.cThread = 0x55cc8f4e0c30 <vtable for cEpgDataReader+16>, active = false, running = false, childTid = 140313280124672, 
            childThreadId = 14540, mutex = {mutex = pthread_mutex_t = {Type = Error check, Status = Not acquired, Robust = No, Shared = No, Protocol = None}, locked = 0}, 
            description = 0x55cc90d2a6b0 "epg data reader", lowPriority = false, static mainThreadId = 14537}, <No data fields>}

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