Hi , Just sharing the dump stack at the time of ALSA -18 continous error logs coming from retire_capture_urb() function : [<bf3a7860>] (retire_capture_urb+0x0/0x1ec [snd_usb_audio]) from [<bf3a77d4>] (snd_complete_urb+0x3c/0xc8 [snd_usb_audio]) [<bf3a7798>] (snd_complete_urb+0x0/0xc8 [snd_usb_audio]) from [<bf0fd460>] (usb_hcd_giveback_urb+0x78/0x1d4 [usbcore]) r8:ffc63480 r7:c37a3f00 r6:00000000 r5:00000000 r4:c1047ac0 r3:bf3a7798 [<bf0fd3e8>] (usb_hcd_giveback_urb+0x0/0x1d4 [usbcore]) from [<bf11a40c>] (ehci_shutdown+0x2f4/0xacc [ehci_hcd]) r5:c100b400 r4:c1047ac0 [<bf11a360>] (ehci_shutdown+0x248/0xacc [ehci_hcd]) from [<bf11c128>] (ehci_urb_dequeue+0xf0c/0x12b4 [ehci_hcd]) r6:c100b400 r5:ffc63460 r4:c100b4d0 r3:00000001 [<bf11bcac>] (ehci_urb_dequeue+0xa90/0x12b4 [ehci_hcd]) from [<bf11d15c>] (ehci_irq+0x1bc/0x204 [ehci_hcd]) [<bf11cfa0>] (ehci_irq+0x0/0x204 [ehci_hcd]) from [<bf0fd0e8>] (usb_hcd_irq+0x40/0x98 [usbcore]) [<bf0fd0a8>] (usb_hcd_irq+0x0/0x98 [usbcore]) from [<c0094898>] (handle_IRQ_event+0xa8/0x1d0) r5:c7b76000 r4:c7b2af60 [<c00947f0>] (handle_IRQ_event+0x0/0x1d0) from [<c00967dc>] (handle_level_irq+0xc8/0x148) [<c0096714>] (handle_level_irq+0x0/0x148) from [<c002804c>] (asm_do_IRQ+0x4c/0x64) r6:00000038 r5:00000000 r4:0000000e r3:c0096714 [<c0028000>] (asm_do_IRQ+0x0/0x64) from [<c02fdf04>] (__irq_usr+0x44/0xa0) Regards Amit Nagal On Thu, Oct 21, 2010 at 5:26 PM, Amit Nagal <helloin.amit@xxxxxxxxx> wrote: > Hi, > > Thanx for ur suggestions and time . > > As suggested by you ( debugged the code that didn't shut down the USB > streaming properly ) , > > i am finding that at USB disconnect , > > even the functions usb_audio_disconnect() && > snd_usb_audio_disconnect() are not at all getting called . > > i need to check the shut down process of USB streaming to find out > the reason . > > if some more pointers to code areas can be shared , it will be nice . > > Thanx & Regards > Amit Nagal > > > > > > > > > > > > > > > On Thu, Oct 21, 2010 at 12:59 PM, Clemens Ladisch <clemens@xxxxxxxxxx> wrote: >> I wrote: >>> Amit Nagal wrote: >>> > Actually since i am using a embedded target , it is not possible to >>> > use higher kernel version . >>> >>> But you could at least test a newer kernel on another machine. >> >> Unplugging works for me on current kernels, so it looks as if the >> problem has been fixed. >> >>> > any clues / pointer to functions .changes which can resolve this >>> > problem in existing linux kernel ? >> >> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=history;f=sound/usb;hb=HEAD >> >> >> Regards, >> Clemens >> > -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
