Comment # 23 on bug 1141762 from Konstantin Voinov

just run jack with dummy driver:

jackd -d dummy

then any jack_client will crash:


gdb jack_simple_client
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Reading symbols from jack_simple_client...
Reading symbols from
/usr/lib/debug/usr/bin/jack_simple_client-1.9.12-3.4.x86_64.debug...
(gdb) run
Starting program: /usr/bin/jack_simple_client
Missing separate debuginfo for /lib64/ld-linux-x86-64.so.2
Try: zypper install -C
"debuginfo(build-id)=61d4b8695bd3838dec3433832d4842666349c2ad"
Missing separate debuginfo for /lib64/libc.so.6
Try: zypper install -C
"debuginfo(build-id)=4884b60caecd671b2c2954c6305c5412fa176c8e"
Missing separate debuginfo for /lib64/libm.so.6
Try: zypper install -C
"debuginfo(build-id)=d003f377a3941d09075c932b6041a88d8d55d00b"
Missing separate debuginfo for /lib64/libpthread.so.0
Try: zypper install -C
"debuginfo(build-id)=d1e9eeb7a9bdf363e38d29c3b0fc27b9960a70e0"
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Missing separate debuginfo for /lib64/librt.so.1
Try: zypper install -C
"debuginfo(build-id)=8f023124de2f61f08543a43e76b51d92a830300d"
Missing separate debuginfo for /usr/lib64/libstdc++.so.6
Try: zypper install -C
"debuginfo(build-id)=0b3fc3b7af40d5569333ef4d85e0e2a65344e532"
Missing separate debuginfo for /lib64/libgcc_s.so.1
Try: zypper install -C
"debuginfo(build-id)=66c85f9a5c79259a72874f3459feb2329e88e77c"
[New Thread 0x7ffff7a16700 (LWP 26464)]
[New Thread 0x7ffff7995700 (LWP 26465)]
[New Thread 0x7ffff7914700 (LWP 26466)]

Thread 4 "jack_simple_cli" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff7914700 (LWP 26466)]
0x00007ffff7da653e in Jack::JackClient::Execute() () from
/usr/lib64/libjack.so.0
(gdb) bt
#0  0x00007ffff7da653e in Jack::JackClient::Execute() () from
/usr/lib64/libjack.so.0
#1  0x00007ffff7d95e26 in Jack::JackPosixThread::ThreadHandler(void*) () from
/usr/lib64/libjack.so.0
#2  0x00007ffff7c2afaa in start_thread () from /lib64/libpthread.so.0
#3  0x00007ffff7ebb73f in clone () from /lib64/libc.so.6
(gdb)