I am running the process mpg321 on a Raspberry Pi 2. mpg321 plays .mp3 files and to pause the music, I have a hotkey that enters sudo kill -SIGSTOP [pid of mpg321]. This works great, except for when I leave my music paused for more than about one hour, then I get a kernel Oops and eventually a kernel panic after I try to unpause the music.The kernel Oops is:Message from syslogd@raspberrypi at Jan 30 22:43:45 ...     kernel:[91001.596603] Internal error: Oops: 5 [#2] PREEMPT SMP ARMMessage from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91001.902975] Process mpg321 (pid: 11096, stack limit = 0xb220a210)Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91001.918095] Stack: (0xb220bdb8 to 0xb220c000)Which is immediately followed by this kernel panic:Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91001.931470] bda0:                                                       00000000 00000000Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91001.957205] bdc0: 7f130b94 802ff67c 802ff660 75e50000 b1e68170 b9190d10 000006e8 00000000Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91001.982913] bde0: 00000000 00000048 00000080 00000000 00000000 000003af b2140000 75e50000Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91002.009496] be00: b9190d10 00000054 ba6bbaa4 00000046 b220bea4 b220be20 8011e260 800f3394Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91002.036241] be20: 00000000 00000000 00000000 00000000 00000055 00000000 00000000 75e50000Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91002.062953] be40: 00000000 b2612000 00000140 00000040 00000050 00000054 001d58f0 00000054Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91002.089652] be60: 00000046 75e50000 b220bebc b220be78 00000055 b2612140 00000000 b220bfb0Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91002.116838] be80: 00000017 75e50018 b9153a40 b9242400 b9153a78 00000054 b220befc b220bea8Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91002.144590] bea0: 8055eca0 8011dadc 001d58f0 b68ae490 b220bef4 b220bec0 7f132c7c 7f131ec8Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91002.173009] bec0: b220befc 00000000 00000000 00000480 00000000 00000017 8055e9c8 75e50018Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91002.202002] bee0: 8080209c b220bfb0 7e9dc9fa 00000000 b220bfac b220bf00 800091e4 8055e9d4Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91002.231728] bf00: 801566cc 7f132f44 00000000 807e1900 b220bf3c 807e1900 807d8330 3978c000Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91002.261788] bf20: 60000193 00000000 00000000 00192c44 b220bf5c b220bf40 800764bc 800d0794Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91002.292131] bf40: 00000000 807dac74 00000000 00000000 b220bf74 b92c9c00 b92c9c00 c0844123Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91002.322942] bf60: 001d58f0 00000006 001d5788 001d57d8 001d5788 001d57d8 000208ac 00000036Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91002.354633] bf80: 00000000 b220bf90 76e2d6cc 76e2d6cc 60000010 ffffffff 10c5387d 10c5387dMessage from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91002.386365] bfa0: 00000000 b220bfb0 8055e524 800091ac 7e9dca78 00000020 75e50018 7e9dca78Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91002.418132] bfc0: 0018f264 7e9dca34 00000000 7e9dca37 00000002 7e9dc9fa 00000000 7e9dc97eMessage from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91002.449906] bfe0: 00000008 7e9dc944 76e35024 76e2d6cc 60000010 ffffffff 00000000 00000000Message from syslogd@raspberrypi at Jan 30 22:43:45 ... kernel:[91002.720458] Code: e3160003 1a000063 f57ff05b f593f000 (e1932f9f)What is happening here? I'm not sure what how pausing a process can cause this. I just need to know what the kernel Oops and panic mean exactly, but if someone knows how to fix it as well, it would be much appreciated.
Pausing a process with -SIGSTOP for long enough causes Kernel Oops Stack Overflow
raspberry pi;raspbian;crash;kernel panic