Re: REGRESSION: dwc2: gadget: Add scatter-gather mode
From: Minas Harutyunyan
Date: Mon Mar 11 2019 - 02:28:26 EST
Hi Andrzej,
USB CV MSC tests failed starting from Test Case 6 with BNA interrupt on
ep1in. It's first BULK IN transaction after GET MAXLUN.
[319523.955339] dwc2 dwc2.1.auto: dwc2_hsotg_irq: 04088028 00080000
(d88c3cc4) retry 8
[319523.955357] dwc2 dwc2.1.auto: dwc2_hsotg_irq: daint=00020000
[319523.955366] dwc2 dwc2.1.auto: dwc2_hsotg_epint: ep1(out)
DxEPINT=0x00000001
[319523.955372] dwc2 dwc2.1.auto: dwc2_hsotg_epint: XferCompl:
DxEPCTL=0x00098200, DXEPTSIZ=15c7d486
[319523.955377] dwc2 dwc2.1.auto: complete: ep 00000000b58e703a ep1out,
req 00000000bde78704, 0 => 000000002620ceb8
[319523.955396] dwc2 dwc2.1.auto: ep1in: req 00000000acdadb34:
36@00000000450496f9, noi=0, zero=0, snok=0
[319523.955403] dwc2 dwc2.1.auto: dwc2_hsotg_start_req:
DxEPCTL=0x004a8200, ep 1, dir in
[319523.955406] dwc2 dwc2.1.auto: ureq->length:36 ureq->actual:0
[319523.955408] dwc2 dwc2.1.auto: dwc2_hsotg_start_req: 1@36/36,
0x20080024 => 0x00000930
[319523.955410] dwc2 dwc2.1.auto: dwc2_hsotg_start_req: 36cbc000 pad =>
0x00000934
[319523.955412] dwc2 dwc2.1.auto: ep0 state:0
[319523.955413] dwc2 dwc2.1.auto: dwc2_hsotg_start_req: DxEPCTL=0x844a8200
[319523.955420] dwc2 dwc2.1.auto: dwc2_hsotg_start_req: DXEPCTL=0x80488200
[319523.955425] dwc2 dwc2.1.auto: ep1in: req 00000000f74873bc:
13@000000007a860fd2, noi=0, zero=0, snok=0
[319523.955446] dwc2 dwc2.1.auto: dwc2_hsotg_irq: 04048028 00040000
(d88c3cc4) retry 8
[319523.955451] dwc2 dwc2.1.auto: dwc2_hsotg_irq: daint=00000002
[319523.955460] dwc2 dwc2.1.auto: dwc2_hsotg_epint: ep1(in)
DxEPINT=0x00000200
[319523.955462] dwc2 dwc2.1.auto: dwc2_hsotg_epint: BNA interrupt
[319553.987219] dwc2 dwc2.1.auto: dwc2_hsotg_irq: 04008428 00000400
(d88c3cc4) retry 8
Meanwhile it's passing smoke test with mass storage function.
Thanks,
Minas
On 3/9/2019 12:53 AM, John Stultz wrote:
> Hey Andrzej,
> I just wanted to let you know, trying to boot linus/master on the
> hikey board today, I've been seeing lots of errors on boot (which
> sometimes crash the board, and sometimes doesn't). See the example
> below.
>
> I've bisected the issue down to 10209abe87f5 ("usb: dwc2: gadget: Add
> scatter-gather mode"), and if I revert that change the issue goes
> away.
>
> Looking at the patch, I can't see anything obviously sticking out, but
> let me know if you have anything suggestions you'd like me to test.
>
> thanks
> -john
>
>
> [ 13.088934] functionfs read size 512 > requested size 24, splitting
> request into multiple reads.
> [ 13.089029] ------------[ cut here ]------------
> [ 13.102665] Trying to vfree() bad address (00000000ecf3404f)
> [ 13.108436] WARNING: CPU: 0 PID: 2014 at mm/vmalloc.c:1516 __vunmap+0xe0/0xe8
> [ 13.115587] CPU: 0 PID: 2014 Comm: adbd Not tainted
> 5.0.0-08291-ga032141-dirty #897
> [ 13.123244] Hardware name: HiKey Development Board (DT)
> [ 13.128469] pstate: 80400005 (Nzcv daif +PAN -UAO)
> [ 13.133266] pc : __vunmap+0xe0/0xe8
> [ 13.136757] lr : __vunmap+0xe0/0xe8
> [ 13.140243] sp : ffffff80114d3b40
> [ 13.143555] x29: ffffff80114d3b40 x28: ffffffc07333d280
> [ 13.148868] x27: ffffffc071b67a38 x26: 00000000000001e8
> [ 13.154180] x25: ffffff80114d3ca8 x24: ffffffc07190e400
> [ 13.159492] x23: ffffffc0748bca00 x22: ffffff8010ffd000
> [ 13.164803] x21: 0000000000000001 x20: ffffff80114d3c98
> [ 13.170113] x19: ffffff8010414e74 x18: ffffff8010ffda48
> [ 13.175423] x17: 0000000000000000 x16: 0000000000000000
> [ 13.180734] x15: ffffff80914d3867 x14: 0000000000000006
> [ 13.186044] x13: ffffff80114d3875 x12: ffffff801101c898
> [ 13.191371] x11: ffffff801101c000 x10: 0000000005f5e0ff
> [ 13.191416] type=1400 audit(16.743:79): avc: denied { read } for
> comm="drmserver" name="enabled" dev="sysfs" ino=5492
> scontext=u:r:drmserver:s0 tcont0
> [ 13.196698] x9 : ffffff80114d3800 x8 : 2966343034336663
> [ 13.196707] x7 : 6530303030303030 x6 : 0000000000000424
> [ 13.196713] x5 : 0000000000000000 x4 : 0000000000000000
> [ 13.196718] x3 : 0000000000000001 x2 : 0000000000000001
> [ 13.196724] x1 : b357113b3815f700 x0 : 0000000000000000
> [ 13.214445] type=1400 audit(17.075:84): avc: denied { read } for
> comm="audioserver" name="enabled" dev="sysfs" ino=5492
> scontext=u:r:audioserver:s0 t0
> [ 13.219604] Call trace:
> [ 13.219616] __vunmap+0xe0/0xe8
> [ 13.219623] __vfree+0x24/0x70
> [ 13.219635] vfree+0x20/0x38
> [ 13.270258] ffs_epfile_io.isra.12+0x190/0x6b0
> [ 13.274707] ffs_epfile_read_iter+0xa0/0x168
> [ 13.278982] __vfs_read+0x10c/0x168
> [ 13.282471] vfs_read+0x8c/0x148
> [ 13.285700] ksys_read+0x5c/0xc8
> [ 13.288930] __arm64_sys_read+0x14/0x20
> [ 13.292773] el0_svc_common.constprop.0+0xb0/0x110
> [ 13.297461] type=1400 audit(17.075:84): avc: denied { read } for
> comm="audioserver" name="enabled" dev="sysfs" ino=5492
> scontext=u:r:audioserver:s0 t0
> [ 13.297570] el0_svc_handler+0x28/0x78
> [ 13.315592] type=1400 audit(17.179:85): avc: denied { read } for
> comm="bootanimation" name="enabled" dev="sysfs" ino=5492
> scontext=u:r:bootanim:s0 tc0
> [ 13.319239] el0_svc+0x8/0xc
> [ 13.319245] ---[ end trace 729ab9edfbdb0764 ]---
>