Hi, I get this with Ingo's lockdep patch from http://people.redhat.com/mingo/generic-irq-subsystem/ ==================================== [ BUG: possible deadlock detected! ] ------------------------------------ modprobe/592 is trying to acquire lock: (&grp->list_mutex){----}, at: [<fd9ee555>] snd_seq_port_connect+0xc0/0x337 [snd_seq] but task is already holding lock: (&grp->list_mutex){----}, at: [<fd9ee4fb>] snd_seq_port_connect+0x66/0x337 [snd_seq] which could potentially lead to deadlocks! other info that might help us debug this: 1 locks held by modprobe/592: #0: (&grp->list_mutex){----}, at: [<fd9ee4fb>] snd_seq_port_connect+0x66/0x337 [snd_seq] stack backtrace: <c1003f36> show_trace+0xd/0xf <c1004449> dump_stack+0x17/0x19 <c1039792> __lockdep_acquire+0xa1a/0xa39 <c1039bed> lockdep_acquire+0x69/0x82 <fd9ee570> snd_seq_port_connect+0xdb/0x337 [snd_seq] <fd9ea5f5> snd_seq_ioctl_subscribe_port+0x96/0xe6 [snd_seq] <fd9e91d4> snd_seq_do_ioctl+0x5d/0x68 [snd_seq] <fd9e921c> snd_seq_kernel_client_ctl+0x2d/0x3b [snd_seq] <f8877274> snd_seq_oss_create_client+0x12d/0x142 [snd_seq_oss] <f88770f7> alsa_seq_oss_init+0xf7/0x147 [snd_seq_oss] <c104116d> sys_init_module+0xa6/0x230 <c11efa8b> sysenter_past_esp+0x54/0x8d Here is dmesg http://www.stardust.webpages.pl/files/lockdep/2.6.17-rc4-mm3-lockdep1/lockdep-dmesg Here is config http://www.stardust.webpages.pl/files/lockdep/2.6.17-rc4-mm3-lockdep1/lockdep-config Regards, Michal -- Michal K. K. Piotrowski LTG - Linux Testers Group (http://www.stardust.webpages.pl/ltg/wiki/) _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
