Comment 4 for bug 1655536

Wow, looking at the stack trace it seems that it fails trying to play a short 'ding' when the calibration has been completed. Epic fail :-)

(gcm-calibrate:6632): Gcm-WARNING **: VTE: could not screenscrape: 'Profile check complete, peak err = 167.192701, avg err = 51.477333, RMS = 60.497998'
*** Error in `gcm-calibrate': double free or corruption (fasttop): 0x000055bb4f756310 ***
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(+0x790cb)[0x7fc300bfa0cb]
/lib/x86_64-linux-gnu/libc.so.6(+0x8275a)[0x7fc300c0375a]
/lib/x86_64-linux-gnu/libc.so.6(cfree+0x4c)[0x7fc300c0718c]
gcm-calibrate(+0xb3e4)[0x55bb4e2693e4]
gcm-calibrate(+0xd525)[0x55bb4e26b525]
gcm-calibrate(+0xed7b)[0x55bb4e26cd7b]
gcm-calibrate(+0x11afc)[0x55bb4e26fafc]
/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_dispatch+0x15a)[0x7fc3011b068a]
/lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x4aa40)[0x7fc3011b0a40]
/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_iteration+0x2c)[0x7fc3011b0aec]
/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0(g_application_run+0x20d)[0x7fc30176c70d]
gcm-calibrate(+0x8865)[0x55bb4e266865]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1)[0x7fc300ba13f1]
gcm-calibrate(+0x893a)[0x55bb4e26693a]
======= Memory map: ========
55bb4e25e000-55bb4e27c000 r-xp 00000000 103:02 2633874 /usr/bin/gcm-calibrate
55bb4e47c000-55bb4e47d000 r--p 0001e000 103:02 2633874 /usr/bin/gcm-calibrate
55bb4e47d000-55bb4e47e000 rw-p 0001f000 103:02 2633874 /usr/bin/gcm-calibrate
55bb4f5a5000-55bb4fb4f000 rw-p 00000000 00:00 0 [heap]
7fc2cffff000-7fc2d4000000 rw-s 00000000 00:16 17 /dev/shm/pulse-shm-550396211
7fc2d4000000-7fc2d8000000 rw-s 00000000 00:05 187206 /memfd:pulseaudio (deleted)
7fc2d8000000-7fc2d8051000 rw-p 00000000 00:00 0
7fc2d8051000-7fc2dc000000 ---p 00000000 00:00 0
7fc2dd9f6000-7fc2ddbf6000 rw-s 00000000 00:05 6782989 /SYSV00000000 (deleted)
7fc2ddbf6000-7fc2ddc83000 r-xp 00000000 103:02 2630946 /usr/lib/x86_64-linux-gnu/libvorbisenc.so.2.0.11
7fc2ddc83000-7fc2dde82000 ---p 0008d000 103:02 2630946 /usr/lib/x86_64-linux-gnu/libvorbisenc.so.2.0.11
7fc2dde82000-7fc2dde9e000 r--p 0008c000 103:02 2630946 /usr/lib/x86_64-linux-gnu/libvorbisenc.so.2.0.11
7fc2dde9e000-7fc2dde9f000 rw-p 000a8000 103:02 2630946 /usr/lib/x86_64-linux-gnu/libvorbisenc.so.2.0.11
7fc2dde9f000-7fc2ddf12000 r-xp 00000000 103:02 2629355 /usr/lib/x86_64-linux-gnu/libFLAC.so.8.3.0