Am 04.07.2014 18:30, schrieb Alan Stern: > On Fri, 4 Jul 2014, Anders Darander wrote: > >> Hi, >> >> While porting an internal BSP (a design based on a at91sam9g20 SoC) >> from 3.10 to 3.14, I got flooded with messages like: >> >> ~# usb 1-1: new full-speed USB device number 3 using at91_ohci >> usb 1-1: ath9k_htc: Firmware htc_9271.fw requested >> usb 1-1: ath9k_htc: Transferred FW: htc_9271.fw, size: 51272 >> -----------[ cut here ]----------- >> WARNING: CPU: 0 PID: 93 at >> /mnt/cs-builds/anders/oe-build/build-ccu/tmp-eglibc/work/ccu-oe-linux-gnueabi/linux-yocto-ccu/3.14+gitAUTOINC+7b03bd3dfd-r0/linux/drivers/usb/core/urb.c:450 >> usb_submit_urb+0x2ac/0x460() >> usb 1-1: BOGUS urb xfer, pipe 1 != type 3 >> Modules linked in: ath9k_htc ath9k_common ath9k_hw ath mac80211 >> cfg80211 ccudrv(O) at91_disable_wdt(O) at91_bootcount(O) at91_adc(O) >> CPU: 0 PID: 93 Comm: kworker/0:3 Tainted: G W O 3.14.10-ccu #2 >> Workqueue: events request_firmware_work_func >> [<c000d354>] (unwind_backtrace) from [<c000bb74>] (show_stack+0x10/0x14) >> [<c000bb74>] (show_stack) from [<c00155ac>] (warn_slowpath_common+0x60/0x80) >> [<c00155ac>] (warn_slowpath_common) from [<c00155f8>] >> (warn_slowpath_fmt+0x2c/0x3c) >> [<c00155f8>] (warn_slowpath_fmt) from [<c01d9c14>] (usb_submit_urb+0x2ac/0x460) >> [<c01d9c14>] (usb_submit_urb) from [<bf134e28>] >> (hif_usb_send+0x268/0x2c8 [ath9k_htc]) >> [<bf134e28>] (hif_usb_send [ath9k_htc]) from [<bf133064>] >> (htc_issue_send.constprop.4+0x64/0x68 [ath9k_htc]) >> [<bf133064>] (htc_issue_send.constprop.4 [ath9k_htc]) from >> [<bf133354>] (htc_connect_service+0x170/0x1c8 [ath9k_htc]) >> [<bf133354>] (htc_connect_service [ath9k_htc]) from [<bf135484>] >> (ath9k_wmi_connect+0x50/0x6c [ath9k_htc]) >> [<bf135484>] (ath9k_wmi_connect [ath9k_htc]) from [<bf13b2e0>] >> (ath9k_init_htc_services.isra.10+0x20/0x280 [ath9k_htc]) >> [<bf13b2e0>] (ath9k_init_htc_services.isra.10 [ath9k_htc]) from >> [<bf13b744>] (ath9k_htc_probe_device+0xe4/0x928 [ath9k_htc]) >> [<bf13b744>] (ath9k_htc_probe_device [ath9k_htc]) from [<bf13374c>] >> (ath9k_htc_hw_init+0x10/0x30 [ath9k_htc]) >> [<bf13374c>] (ath9k_htc_hw_init [ath9k_htc]) from [<bf1345e0>] >> (ath9k_hif_usb_firmware_cb+0x4cc/0x5c8 [ath9k_htc]) >> [<bf1345e0>] (ath9k_hif_usb_firmware_cb [ath9k_htc]) from [<c018993c>] >> (request_firmware_work_func+0x2c/0x4c) >> [<c018993c>] (request_firmware_work_func) from [<c0026bd0>] >> (process_one_work+0x20c/0x33c) >> [<c0026bd0>] (process_one_work) from [<c002774c>] (worker_thread+0x234/0x384) >> [<c002774c>] (worker_thread) from [<c002bea0>] (kthread+0xc0/0xd4) >> [<c002bea0>] (kthread) from [<c00094d0>] (ret_from_fork+0x14/0x24) >> --[ end trace b92d2c3cd165cd68 ]-- >> -----------[ cut here ]----------- > > I can't tell exactly where the fault is, but this message means that an > URB was submitted for a bulk endpoint with a pipe of type > PIPE_INTERRUPT. Then kernel driver and firmware should be updated. There was some Bulk/Interrupt issues which was fixed last year. I hope this HW will not be used as AP. >> After temporarily reverting commit >> 3482528e9aced9234d4e2a4a9538c882a9aa5aa2, which enables debug checks >> on all USB urb's (previously is was only enabled for a >> CONFIG_USB_DEBUG enabled kernel), the WiFi chip starts to work >> correctly. The chip in question is a ar9721. >> >> The same USB stick works without these messages on my laptop; while >> another USB stick, based on an rtl8187 chip, works without these >> messages on the target system (at91sam9g20) >> >> Any pointers to what it could be? Or suggestions on how to attack the issue? > > Fix the URB submission to use the correct pipe type. > > Alan Stern > > -- > To unsubscribe from this list: send the line "unsubscribe linux-wireless" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Regards, Oleksij
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