Still happening, even without the kernel taint:
Jul 2 00:04:08 localhost kernel: List corruption. next->prev should be
ce8e7448, but was d084dc48
Jul 2 00:04:08 localhost kernel: ------------[ cut here ]------------
Jul 2 00:04:08 localhost kernel: kernel BUG at include/linux/list.h:58!
Jul 2 00:04:08 localhost kernel: invalid opcode: 0000 [#1]
Jul 2 00:04:08 localhost kernel: last sysfs
file: /class/input/input3/event3/dev
Jul 2 00:04:08 localhost kernel: Modules linked in: pcspkr autofs4 hidp
l2cap bluetooth sunrpc ipt_REJECT xt_state ip_conntrack nfnetlink
xt_tcpudp iptable_filter ip_tables x_tables video button battery ac ipv6
lp uhci_hcd floppy joydev snd_via82xx gameport snd_ac97_codec
snd_ac97_bus snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq
snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_page_alloc
snd_mpu401_uart snd_rawmidi snd_seq_device parport_pc snd parport
soundcore dm_snapshot dm_zero dm_mirror dm_mod reiserfs
Jul 2 00:04:08 localhost kernel: CPU: 0
Jul 2 00:04:08 localhost kernel: EIP: 0060:[<d81e5234>] Not
tainted VLI
Jul 2 00:04:08 localhost kernel: EFLAGS: 00010082 (2.6.17-1.2139_FC5
#1)
Jul 2 00:04:08 localhost kernel: EIP is at snd_seq_delete_all_ports
+0x60/0x176
[snd_seq]
Jul 2 00:04:08 localhost kernel: eax: 00000044 ebx: ce8e7448 ecx:
c06bbfd0
edx: c4821aa0
Jul 2 00:04:08 localhost kernel: esi: ce8e7448 edi: d084dc48 ebp:
d084dbc0
esp: ca33cf30
Jul 2 00:04:08 localhost kernel: ds: 007b es: 007b ss: 0068
Jul 2 00:04:08 localhost kernel: Process hydrogen (pid: 2372,
threadinfo=ca33c000 task=c4821aa0)
Jul 2 00:04:08 localhost kernel: Stack: d81e6432 ce8e7448 d084dc48
d084dc5c d084dc50 00000282 22222222 22222222
Jul 2 00:04:08 localhost kernel: d084dbc0 d69132b4 d69132b4
ca30d940 d81e01bc d084dbc0 d81e026e 00000000
Jul 2 00:04:08 localhost kernel: d691343c 00000008 d084dbc0
d81e02bc 00000008 c045ce66 00000000 d67a7f18
Jul 2 00:04:08 localhost kernel: Call Trace:
Jul 2 00:04:08 localhost kernel: <d81e01bc> seq_free_client1+0x8/0x7e
[snd_seq] <d81e026e> seq_free_client+0x3c/0x78 [snd_seq]
Jul 2 00:04:09 localhost kernel: <d81e02bc> snd_seq_release+0x12/0x31
[snd_seq] <c045ce66> __fput+0xb2/0x158
Jul 2 00:04:09 localhost kernel: <c045a798> filp_close+0x52/0x59
<c0402cb3> syscall_call+0x7/0xb
Jul 2 00:04:09 localhost kernel: Code: 00 00 74 6d 8b 9d 88 00 00 00 8b
b5 8c 00 00 00 8b 43 04 39 f0 74 1c 89 74 24 04 89 44 24 08 c7 04 24 32
64 1e d8 e8 8f
77 23 e8 <0f> 0b 3a 00 1d 64 1e d8 8b 06 39 d8 74 1c 89 5c 24 04 89 44
24
Jul 2 00:04:09 localhost kernel: EIP: [<d81e5234>]
snd_seq_delete_all_ports+0x60/0x176 [snd_seq] SS:ESP 0068:ca33cf30
Jul 2 00:04:09 localhost kernel: <3>BUG: sleeping function called from
invalid context at include/linux/rwsem.h:43
Jul 2 00:04:09 localhost kernel: in_atomic():0, irqs_disabled():1
Jul 2 00:04:09 localhost kernel: <c0426d8d>
blocking_notifier_call_chain+0x18/0x49 <c041e7fc> do_exit+0x19/0x768
Jul 2 00:04:09 localhost kernel: <c05290e7> do_unblank_screen
+0x2a/0x127 <c04042c0> die+0x27b/0x2a0
Jul 2 00:04:09 localhost kernel: <c04048a5> do_invalid_op+0x0/0xab
<c0404947> do_invalid_op+0xa2/0xab
Jul 2 00:04:09 localhost kernel: <d81e5234> snd_seq_delete_all_ports
+0x60/0x176 [snd_seq] <d81e0af6> snd_seq_ioctl_create_port+0x11a/0x131
[snd_seq]
Jul 2 00:04:10 localhost kernel: <c042f6aa> debug_mutex_add_waiter
+0x1c/0x2c
<c04037df> error_code+0x4f/0x54
Jul 2 00:04:10 localhost kernel: <d81e5234> snd_seq_delete_all_ports
+0x60/0x176 [snd_seq] <d81e01bc> seq_free_client1+0x8/0x7e [snd_seq]
Jul 2 00:04:10 localhost kernel: <d81e026e> seq_free_client+0x3c/0x78
[snd_seq] <d81e02bc> snd_seq_release+0x12/0x31 [snd_seq]
Jul 2 00:04:10 localhost kernel: <c045ce66> __fput+0xb2/0x158
<c045a798> filp_close+0x52/0x59
Jul 2 00:04:10 localhost kernel: <c0402cb3> syscall_call+0x7/0xb
Jul 2 00:04:10 localhost kernel: BUG: hydrogen/2372, lock held at task
exit time!
Jul 2 00:04:10 localhost kernel: [d81ec860] {register_mutex}
Jul 2 00:04:10 localhost kernel: .. held by: hydrogen: 2372
[c4821aa0, 115]
Jul 2 00:04:10 localhost kernel: ... acquired at:
seq_free_client+0x10/0x78 [snd_seq]This is after booting clean, starting up jackd with qjackctl, starting hydrogen then quitting hydrogen. After this, any attempt to use the ALSA sequencer just causes that process to hang trying to open /dev/snd/seq. (kernel-2.6.17-1.2139_FC5)
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