Re: sound usb related kernel panic on reboot

[James Stone <stone1@btinternet.com>]

Actually, I think the problem is related to the shutdown script for
Alsa. It causes the segfault when it tries to unload the snd_usb_midi
module. For the time being, I am not using this script and it avoids the
problem. I suppose an alternate workaround might be to disable unloading
of modules in the kernel.

James.

On Sat, Jan 17, 2004 at 01:00:34PM +0000, James Stone wrote:
> I have found the soultion to the problem. It was entirely unrelated to
> the kernel- sorry!
> 
> I was running the kernel alsa modules but I had different versions of
> the alsa tools and alsa lib installed. Although it _seemed_ to work, it
> also led to the kernel panics on shutdown.
> 
> James
> 
> 
> On Fri, Jan 16, 2004 at 10:44:46PM +0000, James Stone wrote:
> > Please cc me with any replies.
> > 
> > I have been getting the already reported kernel panic on shutdown/reboot
> > which seems to be related in some way to the modem_run userspace driver
> > for the alcatel speedtouch modem. I have now noticed another one which
> > is also related to USB in some way.. 
> > 
> > I have a midi keyboard (evolution MK-249C) attached via USB and when it
> > is switched on, I get the kernel panic on shutdown. I can supply the
> > full trace if required although it will require me writing it by hand as
> > it does not seem to be recorded in any logs.
> > 
> > The output from /var/log/kernel is as follows:
> > 
> > Jan 16 19:17:18 moon kernel: agpgart: Putting AGP V2 device at 
> > 0000:00:00.0 into 4x mode
> > Jan 16 19:17:18 moon kernel: agpgart: Putting AGP V2 device at
> > 0000:01:00.0 into 4x mode
> > Jan 16 19:17:18 moon kernel: atkbd.c: Unknown key released (translated
> > set 2, code 0x7a on isa0060/serio0).
> > Jan 16 19:17:18 moon kernel: atkbd.c: Unknown key released (translated
> > set 2, code 0x7a on isa0060/serio0).
> > Jan 16 19:17:27 moon kernel: drivers/usb/core/usb.c: deregistering
> > driver usb-storage
> > Jan 16 19:17:27 moon kernel: drivers/usb/core/usb.c: deregistering
> > driver visor
> > Jan 16 19:17:27 moon kernel: drivers/usb/serial/usb-serial.c: USB
> > Serial deregistering driver Handspring Visor / Palm OS
> > Jan 16 19:17:27 moon kernel: drivers/usb/serial/usb-serial.c: USB
> > Serial deregistering driver Sony Clie 3.5
> > Jan 16 19:17:27 moon kernel: drivers/usb/core/usb.c: deregistering
> > driver usbserial
> > Jan 16 19:17:27 moon kernel: drivers/usb/core/usb.c: deregistering
> > driver usblp
> > Jan 16 19:17:27 moon kernel: uhci_hcd 0000:00:10.0: remove, state 1
> > Jan 16 19:17:27 moon kernel: usb usb1: USB disconnect, address 1
> > Jan 16 19:17:27 moon kernel: usb 1-2: USB disconnect, address 2
> > Jan 16 19:17:27 moon kernel: uhci_hcd 0000:00:10.0: USB bus 1
> > deregistered
> > Jan 16 19:17:27 moon kernel: uhci_hcd 0000:00:10.1: remove, state 1
> > Jan 16 19:17:27 moon kernel: usb usb2: USB disconnect, address 1
> > Jan 16 19:17:27 moon kernel: usb 2-1: USB disconnect, address 2
> > Jan 16 19:17:27 moon kernel: pci_pool_destroy 0000:00:10.1/uhci_td,
> > ddb60000 busy
> > Jan 16 19:17:27 moon kernel: pci_pool_destroy 0000:00:10.1/uhci_td,
> > ddb5a000 busy
> > Jan 16 19:17:27 moon kernel: uhci_hcd 0000:00:10.1: USB bus 2
> > deregistered
> > Jan 16 19:17:27 moon kernel: uhci_hcd 0000:00:10.2: remove, state 1
> > Jan 16 19:17:27 moon kernel: usb usb3: USB disconnect, address 1
> > Jan 16 19:17:27 moon kernel: uhci_hcd 0000:00:10.2: USB bus 3
> > deregistered
> > Jan 16 19:17:27 moon kernel: slab error in kmem_cache_destroy(): cache
> > `uhci_urb_priv': Can't free all objects
> > Jan 16 19:17:27 moon kernel: Call Trace:
> > Jan 16 19:17:27 moon kernel:  [kmem_cache_destroy+152/288]
> > kmem_cache_destroy+0x98/0x120
> > Jan 16 19:17:27 moon kernel:  [_end+542256840/1069502828]
> > uhci_hcd_cleanup+0x1c/0x5
> > 9 [uhci_hcd]
> > Jan 16 19:17:27 moon kernel:  [sys_delete_module+284/320]
> > sys_delete_module+0x11c/0
> > x140
> > Jan 16 19:17:27 moon kernel:  [sys_munmap+68/112] sys_munmap+0x44/0x70
> > Jan 16 19:17:27 moon kernel:  [syscall_call+7/11] syscall_call+0x7/0xb
> > Jan 16 19:17:27 moon kernel: 
> > Jan 16 19:17:27 moon kernel: uhci: not all urb_priv's were freed
> > Jan 16 19:17:27 moon kernel: drivers/usb/core/usb.c: deregistering
> > driver snd-usb-audio
> > Jan 16 19:17:32 moon kernel: drivers/usb/core/usb.c: registered new
> > driver snd-usb-audio
> > Jan 16 19:17:33 moon kernel: drivers/usb/core/usb.c: deregistering
> > driver snd-usb-audio
> > Jan 16 19:17:35 moon kernel: Kernel logging (proc) stopped.
> > Jan 16 19:17:35 moon kernel: Kernel log daemon terminating.
> > 
> > Regards,
> > 
> > James Stone