On 2/24/2017 2:46 PM, John Stultz wrote: > Hey John, > So after the USB tree landed in 4.11-rc, I've been seeing the > following warning at bootup. > > It seems the fifo_mem/total_fifo_size value on hikey is 1920, but I'm > seeing the addresses zip upward quickly as the txfsz values are all > 2048. Not exactly sure whats wrong here. Things still seem to work > properly.
Thanks John. I'm not sure what could be the problem at the moment but sounds like something we broke with the default fifo initialization. We'll take a look at it. Regards, John > > > [ 8.944987] dwc2 f72c0000.usb: bound driver configfs-gadget > [ 8.956651] insufficient fifo memory > [ 8.956703] ------------[ cut here ]------------ > [ 8.964906] WARNING: CPU: 7 PID: 1 at drivers/usb/dwc2/gadget.c:330 > dwc2_hsotg_init_fifo+0x1a8/0x1c8 > [ 8.974041] > [ 8.975536] CPU: 7 PID: 1 Comm: init Not tainted > 4.10.0-09619-gcf8ef33-dirty #2280 > [ 8.983115] Hardware name: HiKey Development Board (DT) > [ 8.988344] task: ffffffc005f38000 task.stack: ffffffc005f34000 > [ 8.994283] PC is at dwc2_hsotg_init_fifo+0x1a8/0x1c8 > [ 8.999341] LR is at dwc2_hsotg_init_fifo+0x1a8/0x1c8 > [ 9.004408] pc : [<ffffff8008699640>] lr : [<ffffff8008699640>] > pstate: 600001c5 > [ 9.011819] sp : ffffffc005f37be0 > [ 9.015138] x29: ffffffc005f37be0 x28: ffffffc005f38000 > [ 9.020471] x27: ffffff8008a52000 x26: 0000000000000001 > [ 9.025797] x25: ffffff8008c4d3f0 x24: ffffff8008dbdd3e > [ 9.031118] x23: 0000000008000580 x22: 0000000000000580 > [ 9.036454] x21: ffffffc074ba7098 x20: ffffffc074ba7018 > [ 9.041781] x19: 000000000000011c x18: 0000000000000010 > [ 9.047116] x17: 0000000000000000 x16: ffffff80081d71c8 > [ 9.052443] x15: ffffff8088de639f x14: 0000000000000006 > [ 9.057763] x13: ffffff8008de63ad x12: ffffff8008d68820 > [ 9.063084] x11: 0000000000000000 x10: ffffffc005f37be0 > [ 9.068404] x9 : ffffffc005f37be0 x8 : 66696620746e6569 > [ 9.073726] x7 : 6369666675736e69 x6 : 000000000000034e > [ 9.079047] x5 : 0000000000000015 x4 : 0000000000000000 > [ 9.084382] x3 : 0000000000000002 x2 : 0000000000000002 > [ 9.089722] x1 : 0000000000000001 x0 : 0000000000000018 > [ 9.095051] > [ 9.096545] ---[ end trace 7e67e3086c7527eb ]--- > [ 9.101173] Call trace: > [ 9.103641] Exception stack(0xffffffc005f37a10 to 0xffffffc005f37b40) > [ 9.110112] 7a00: > 000000000000011c 0000008000000000 > [ 9.117954] 7a20: ffffffc005f37be0 ffffff8008699640 > ffffff8008c4d3f0 0000000000000001 > [ 9.125809] 7a40: ffffff8008a52000 ffffffc005f38000 > ffffffc005f37a90 0000000000000000 > [ 9.133667] 7a60: ffffffc005f37be0 ffffffc005f37be0 > ffffffc005f37ba0 00000000ffffffc8 > [ 9.141530] 7a80: ffffffc005f37ab0 ffffff8008105114 > ffffffc005f37be0 ffffffc005f37be0 > [ 9.149390] 7aa0: ffffffc005f37ba0 00000000ffffffc8 > 0000000000000018 0000000000000001 > [ 9.157252] 7ac0: 0000000000000002 0000000000000002 > 0000000000000000 0000000000000015 > [ 9.165114] 7ae0: 000000000000034e 6369666675736e69 > 66696620746e6569 ffffffc005f37be0 > [ 9.172957] 7b00: ffffffc005f37be0 0000000000000000 > ffffff8008d68820 ffffff8008de63ad > [ 9.180811] 7b20: 0000000000000006 ffffff8088de639f > ffffff80081d71c8 0000000000000000 > [ 9.188673] [<ffffff8008699640>] dwc2_hsotg_init_fifo+0x1a8/0x1c8 > [ 9.194803] [<ffffff800869cb74>] > dwc2_hsotg_core_init_disconnected+0x7c/0x3d0 > [ 9.201970] [<ffffff800869d928>] dwc2_hsotg_pullup+0x90/0x100 > [ 9.207751] [<ffffff80086c1aa8>] usb_udc_connect_control.isra.0+0x78/0x90 > [ 9.214572] [<ffffff80086c1b84>] udc_bind_to_driver+0xc4/0xe8 > [ 9.220349] [<ffffff80086c2a90>] usb_gadget_probe_driver+0xa0/0x150 > [ 9.226629] [<ffffff80086c0f84>] gadget_dev_desc_UDC_store+0xdc/0xf8 > [ 9.233015] [<ffffff8008255528>] configfs_write_file+0xc0/0x198 > [ 9.238969] [<ffffff80081d6d94>] __vfs_write+0x1c/0x100 > [ 9.244206] [<ffffff80081d7018>] vfs_write+0xa0/0x1b0 > [ 9.249269] [<ffffff80081d720c>] SyS_write+0x44/0xa0 > [ 9.254245] [<ffffff8008082f30>] el0_svc_naked+0x24/0x28 >