[Orinoco-devel] 2.6.28-rc2: new PCMCIA device instance after resume - orinoco can't download firmware

[Rafael J. Wysocki]

On Wednesday, 29 of October 2008, Dave wrote:
> Andrey Borzenkov wrote:
> > On Wednesday 29 October 2008, Rafael J. Wysocki wrote:
> >>> Do you have any idea what could it be? Original message is here:
> >>> http://marc.info/?l=linux-wireless&m=122522165719760&w=2
> >> This probably is a result of the fact that we don't include firmware blobs
> >> into modular drivers any more.  Please try to compile your driver directly
> >> into the kernel and enable CONFIG_FIRMWARE_IN_KERNEL.
> >>
> >> If this helps, we'll know what the problem is.
> >>
> > 
> > Ehh ... you miss the point. The problem is NOT missing firmware (I have
> > already been running with external firmware just fine in 2.6.27). The
> > problem is that during resume instead of simply resume *existing*
> > device/driver instance PCMCIA suddenly decides to re-discover the *same*
> > device yet another again.
> > 
> > bisecting will
> > take ages here. I need some advice which options to turn on.
> 
> I attempted to bisect, but ran into problems. As an alternative, I added
> a WARN_ON(err) immediately after the request_firmware call to get a
> stack dump:
> 
> orinoco_cs 0.0: firmware: requesting agere_sta_fw.bin
> ------------[ cut here ]------------
> WARNING: at
> /usr/src/linux-current/wireless-testing/drivers/net/wireless/orinoco.c:495
> orinoco_dl_firmware+0xbb/0x1ce [orinoco]()
> Modules linked in: orinoco_cs orinoco hermes_dld hermes michael_mic
> aty128fb snd_maestro3 [last unloaded: hermes]
> Pid: 22157, comm: bash Not tainted 2.6.28-rc2-wl #41
> Call Trace:
>  [<c0117a8c>] warn_on_slowpath+0x3e/0x57
>  [<c019578a>] release_sysfs_dirent+0x50/0x60
>  [<c0195b3d>] sysfs_addrm_finish+0x73/0x78
>  [<c0195d03>] remove_dir+0x21/0x27
>  [<c02a8901>] fw_dev_release+0x15/0x1d
>  [<c022cfbe>] kobject_release+0x0/0x5
>  [<c022d68b>] kref_put+0x3f/0x4c
>  [<c02a8c7d>] _request_firmware+0x176/0x1bd
>  [<d1083381>] orinoco_dl_firmware+0xbb/0x1ce [orinoco]
>  [<d10836d0>] orinoco_download+0x1f/0x30 [orinoco]
>  [<d1086b39>] orinoco_init+0x63/0x4aa [orinoco]
>  [<c0362ee8>] __dev_get_by_name+0x18/0x72
>  [<c03632ed>] __dev_alloc_name+0x110/0x128
>  [<c03660e5>] netdev_init_queue_locks+0x29/0x41
>  [<c03661e6>] register_netdevice+0x60/0x1d7
>  [<c036638c>] register_netdev+0x2f/0x3b
>  [<d10912a0>] orinoco_cs_config+0xe1/0x174 [orinoco_cs]
>  [<c02ecdda>] pcmcia_device_probe+0xfa/0x144
>  [<c0196200>] sysfs_do_create_link+0x3c/0x10f
>  [<c02a559e>] __device_attach+0x0/0x5
>  [<c02a54d9>] really_probe+0x70/0xea
>  [<c02a5596>] driver_probe_device+0x34/0x3c
>  [<c02a4a53>] bus_for_each_drv+0x38/0x59
>  [<c02a55ee>] device_attach+0x4b/0x5e
>  [<c02a559e>] __device_attach+0x0/0x5
>  [<c02a4c00>] bus_attach_device+0x21/0x4f
>  [<c02a3955>] device_add+0x147/0x272
>  [<c02ed29b>] pcmcia_device_add+0x1ca/0x253
>  [<c02ed3a1>] pcmcia_card_add+0x7d/0x8a       <----- ??
>  [<c0112185>] dequeue_task_fair+0xf/0x10
>  [<c0101c8d>] __switch_to+0x1d/0x139
>  [<c011407b>] finish_task_switch+0x22/0x66
>  [<c03e18fb>] __sched_text_start+0x2d3/0x2ec
>  [<c022cf6d>] kobject_get+0xf/0x13
>  [<c02a3a9e>] get_device+0xe/0x14
>  [<c02e928a>] pcmcia_get_socket+0xe/0x7e
>  [<c02edf0e>] ds_event+0x77/0x94
>  [<c02e96b1>] send_event+0x84/0x9d
>  [<c02e9bee>] socket_resume+0xa1/0xb5
>  [<c02e9255>] pcmcia_socket_dev_resume+0x49/0x70
>  [<c0238d42>] pci_legacy_resume+0x13/0x1a
>  [<c0238e81>] pci_pm_resume+0x42/0x46
>  [<c02a7887>] pm_op+0x2b/0x48
>  [<c02a7a42>] resume_device+0x2e/0xa8
>  [<c02a7b21>] dpm_resume+0x65/0xfc
>  [<c02a7cf1>] device_resume+0x8/0x10
>  [<c0135173>] suspend_devices_and_enter+0x72/0xa1
>  [<c013521d>] enter_state+0x62/0x7a
>  [<c013533f>] state_store+0x9f/0xb4
>  [<c01352a0>] state_store+0x0/0xb4
>  [<c022d0b8>] kobj_attr_store+0x18/0x1c
>  [<c0194cf1>] flush_write_buffer+0x38/0x4c
>  [<c0194d37>] sysfs_write_file+0x32/0x51
>  [<c015eb9b>] vfs_write+0x81/0xf3
>  [<c015ecab>] sys_write+0x3c/0x62
>  [<c0102ced>] sysenter_do_call+0x12/0x21
> ---[ end trace 596cca76ed6aae6a ]---
> eth1: Cannot find firmware agere_sta_fw.bin
> 
> ?? Is that supposed to happen on resume?

Hm, what exactly do you mean?

Rafael