Version: 2.2rc1 (using KDE KDE 3.3.2) Installed from: Gentoo Packages OS: Linux I am running Linux version 2.6.11-gentoo-r6 (gcc version 3.3.5-20050130 (Gentoo Linux 3.3.5.20050130-r1, ssp-3.3.5.20050130-1, pie-8.7.7.1)) #3 SMP Mon May 2 17:53:56 CDT 2005 KDE 3.3.2 and the KMix Version is 2.2rc1, it's very odd problem when I load kmix and it goes to the tray and I start playing music it crashes with the error: The application KMix (kmix) crashed and caused the signal 11 (SIGSEVG) if I leave the Kmix open on screen where I can see it across the desktop it does not crash.
nevermind on that... I just crashed even with it on screen it just crash randomly when I am playing music.
I have exactly the same problem. Im am running Linux version 2.6.11-gentoo-r7 (gcc version 3.4.3-20050110 (Gentoo Linux 3.4.3.20050110-r2, ssp-3.4.3.20050110-0, pie-8.7.7)) #2 Thu May 5 22:59:36 CEST 2005 KDE 3.4.0 KMIX Version is 2.4 As soon as i open KMIX and play music it crashes: The application KMix (kmix) crashed and caused the signal 11 (SIGSEVG)
Here is the backtrace (no debugging symbols found) Using host libthread_db library "/lib/libthread_db.so.1". (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) [Thread debugging using libthread_db enabled] [New Thread 16384 (LWP 25222)] 0x00002aaaaddd9e34 in waitpid () from /lib/libpthread.so.0 #0 0x00002aaaaddd9e34 in waitpid () from /lib/libpthread.so.0 #1 0x00002aaaab9bc6f1 in KCrash::defaultCrashHandler () from /usr/kde/3.4/lib64/libkdecore.so.4 #2 0x00002aaaaddd8c47 in __pthread_sighandler () from /lib/libpthread.so.0 #3 0x00002aaaae737c20 in killpg () from /lib/libc.so.6 #4 0x0000000000000000 in ?? () #5 0x0000000000000000 in ?? () #6 0x0000000000000000 in ?? () #7 0x0000000000000002 in ?? () #8 0x0000000000000000 in ?? () #9 0x000000000000000f in ?? () #10 0x000000000000000c in ?? () #11 0x000000000072a018 in ?? () #12 0x000000000000000c in ?? () #13 0x0000000000000003 in ?? () #14 0x00000000007192b0 in ?? () #15 0x0000000000704910 in ?? () #16 0x0000000000704910 in ?? () #17 0x00002aaaae925a28 in __malloc_initialize_hook () from /lib/libc.so.6 #18 0x0000000000000003 in ?? () #19 0x0000000000729ed0 in ?? () #20 0x00002aaaae925a48 in __malloc_initialize_hook () from /lib/libc.so.6 #21 0x00000000007192b0 in ?? () #22 0x00002aaaae925a28 in __malloc_initialize_hook () from /lib/libc.so.6 #23 0x00002aaaae925a28 in __malloc_initialize_hook () from /lib/libc.so.6 #24 0x00007fffffffe108 in ?? () #25 0x00002aaaae925a28 in __malloc_initialize_hook () from /lib/libc.so.6 #26 0x0000000000010206 in ?? () #27 0x0000000000000000 in ?? () #28 0x0000000000000015 in ?? () #29 0x000000000000000e in ?? () #30 0x0000000080000000 in ?? () #31 0x00002aaaae925a28 in __malloc_initialize_hook () from /lib/libc.so.6 #32 0x00007fffffffde80 in ?? () #33 0x0000000000000000 in ?? () #34 0x0000000000000000 in ?? () #35 0x0000000000000000 in ?? () #36 0x0000000000000000 in ?? () #37 0x0000000000000000 in ?? () #38 0x0000000000000000 in ?? () #39 0x0000000000000000 in ?? () #40 0x0000000000000000 in ?? () #41 0x0000000080000000 in ?? () #42 0x0000000000000000 in ?? () #43 0x0000000000000000 in ?? () #44 0x0000000000729ef0 in ?? () #45 0x00000000008e7b90 in ?? () #46 0x00000000007192b0 in ?? () #47 0x0000000000000000 in ?? () #48 0x0000000000729ef0 in ?? () #49 0x00000000007141a0 in ?? () #50 0x0000000000000000 in ?? () #51 0x00002aaaaf109fde in snd_mixer_find_selem () from /usr/lib/libasound.so.2 #52 0x0000000000000000 in ?? () #53 0x0000000000000000 in ?? () #54 0x0000000000000000 in ?? () #55 0x0000000000000000 in ?? () #56 0x0000000000000000 in ?? () #57 0x0000000000000000 in ?? () #58 0x0000000000000000 in ?? () #59 0x0000000000000000 in ?? () #60 0x0000000000000000 in ?? () #61 0x0000000000000000 in ?? () #62 0x0000000000000000 in ?? () #63 0x0000000000000000 in ?? () #64 0x0000000000000000 in ?? () #65 0x0000000000000000 in ?? () #66 0x0000000000000000 in ?? () #67 0x0000000000000000 in ?? () #68 0x00000000008ac710 in ?? () #69 0x0000000000714130 in ?? () #70 0x00002aaaaf107ecf in snd_mixer_elem_remove () from /usr/lib/libasound.so.2 #71 0x00002aaaaf10a75a in snd_mixer_find_selem () from /usr/lib/libasound.so.2 #72 0x00002aaaaf107894 in snd_mixer_elem_empty () from /usr/lib/libasound.so.2 #73 0x00002aaaaf0fff24 in snd_hctl_handle_events () from /usr/lib/libasound.so.2 #74 0x00002aaaaf1087a9 in snd_mixer_handle_events () from /usr/lib/libasound.so.2 #75 0x00002aaaaee27570 in Mixer_ALSA::prepareUpdate () from /usr/kde/3.4/lib64/libkdeinit_kmix.so #76 0x00002aaaaee30e80 in Mixer::readSetFromHW () from /usr/kde/3.4/lib64/libkdeinit_kmix.so #77 0x00002aaaaee284af in Mixer::qt_invoke () from /usr/kde/3.4/lib64/libkdeinit_kmix.so #78 0x00002aaaac5f39d8 in QObject::activate_signal () from /usr/qt/3/lib64/libqt-mt.so.3 #79 0x00002aaaac5f4142 in QObject::activate_signal () from /usr/qt/3/lib64/libqt-mt.so.3 #80 0x00002aaaac6108c5 in QTimer::event () from /usr/qt/3/lib64/libqt-mt.so.3 #81 0x00002aaaac59aead in QApplication::internalNotify () from /usr/qt/3/lib64/libqt-mt.so.3 #82 0x00002aaaac59b230 in QApplication::notify () from /usr/qt/3/lib64/libqt-mt.so.3 #83 0x00002aaaab9ec882 in KApplication::notify () from /usr/kde/3.4/lib64/libkdecore.so.4 #84 0x00002aaaac58ff6d in QEventLoop::activateTimers () from /usr/qt/3/lib64/libqt-mt.so.3 #85 0x00002aaaac55117d in QEventLoop::processEvents () from /usr/qt/3/lib64/libqt-mt.so.3 #86 0x00002aaaac5aefb5 in QEventLoop::enterLoop () from /usr/qt/3/lib64/libqt-mt.so.3 #87 0x00002aaaac5aef12 in QEventLoop::exec () from /usr/qt/3/lib64/libqt-mt.so.3 #88 0x00002aaaaee2d68d in kdemain () from /usr/kde/3.4/lib64/libkdeinit_kmix.so #89 0x0000000000406d2b in ?? 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I installed an older version of alsa (1.0.7) and now kmix crashes much less often.
SVN commit 413333 by esken: Fix an "off-by-one" memory allocation error, which could lead to very strange results, including direct crashes, memory leakage. It is possible that this bugfix also fixes the reported crashes that occur with some soundcards, when another application starts or stops playback. CCBUGS:101870 105079 M +1 -1 trunk/KDE/kdemultimedia/kmix/mixer_alsa9.cpp --- trunk/KDE/kdemultimedia/kmix/mixer_alsa9.cpp #413332:413333 @@ -436,7 +436,7 @@ //kdDebug(67100) << "Mixer_ALSA::prepareUpdate() 2\n"; - fds = (struct pollfd*)calloc(count + 1, sizeof(struct pollfd)); + fds = (struct pollfd*)calloc(count, sizeof(struct pollfd)); if (fds == NULL) { kdDebug(67100) << "Mixer_ALSA::poll() , calloc() = null" << "\n"; return false;
I have fixed this bug in the KMix ALSA backend. I will close this bugreport. If a problem exists in KDE3.4.2 or later, please do *not* reopen this bugreport, but open a new bugreport (possibly giving a reference in the message).