On Wednesday, 29. March 2006 21:08, Lee Revell wrote: > On Wed, 2006-03-29 at 17:28 +0200, Florian Schmidt wrote: > > > [ 4797.602341] jamin:17931 userspace BUG: scheduling in user-atomic > > > context! > > > [ 4797.602362] [<c01049f5>] show_trace+0x25/0x30 (20) > > > [ 4797.602382] [<c0104a23>] dump_stack+0x23/0x30 (20) > > > [ 4797.602395] [<c02bfa64>] schedule+0x114/0x140 (36) > > > [ 4797.602412] [<c02bfda4>] wait_for_completion+0xa4/0xe0 (48) > > > [ 4797.602426] [<c017bb68>] do_coredump+0x348/0x780 (192) > > > [ 4797.602456] [<c012edf1>] get_signal_to_deliver+0x391/0x510 (60) > > > [ 4797.602473] [<c0102c68>] do_notify_resume+0xb8/0x75c (220) > > > [ 4797.602486] [<c01034fc>] work_notifysig+0x13/0x1b (-8116) > > > [ 4797.602498] --------------------------- > > > [ 4797.602504] | preempt count: 00000000 ] > > > [ 4797.602511] | 0-level deep critical section nesting: > > > [ 4797.602518] ---------------------------------------- > Doesn't this trace mean the problem is that jamin actually crashed and > dumped core on exit? You're right... This is the backtrace: #0 0xffffe410 in __kernel_vsyscall () #1 0x451a69a1 in raise () from /lib/tls/i686/cmov/libc.so.6 #2 0x451a82b9 in abort () from /lib/tls/i686/cmov/libc.so.6 #3 0x0805a69e in io_queue (nframes=0, nchannels=2, in=0xb73e03c4, out=0xb73e03bc) at io.c:477 #4 0x0805a7c5 in io_process (nframes=64, arg=0x0) at io.c:545 #5 0xb7f7d7c7 in jack_client_thread (arg=0x8120c00) at client.c:1465 #6 0xb7f80e04 in jack_thread_proxy (varg=0x82324a8) at thread.c:111 #7 0x453e0341 in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #8 0x452474de in clone () from /lib/tls/i686/cmov/libc.so.6 So jamin is actually calling abort() at io.c:477. But why? What is happening here, and what can I do about it? Dominic