> Could you please apply follow patches from linux-usb mailing list: > 1. usb: dwc2: hcd: Fix host channel halt flow > 2. usb: dwc2: host: Fix transaction errors in host mode > and test again. Thanks for your response. I've tried applying the above patches (taken from https://patchwork.kernel.org/patch/10096209/ and https://patchwork.kernel.org/patch/10104403/) to kernel 4.15.16. The compilation failed with the following error: drivers/usb/dwc2/hcd.c: In function ‘dwc2_hc_halt’: drivers/usb/dwc2/hcd.c:995:12: error: ‘struct dwc2_hsotg’ has no member named ‘core_params’; did you mean ‘hw_params’? if ((hsotg->core_params->dma_enable > 0 && ^~ drivers/usb/dwc2/hcd.c:996:12: error: ‘struct dwc2_hsotg’ has no member named ‘core_params’; did you mean ‘hw_params’? hsotg->core_params->dma_desc_enable <= 0) || ^~ drivers/usb/dwc2/hcd.c: In function ‘dwc2_core_host_init’: drivers/usb/dwc2/hcd.c:2339:34: warning: unused variable ‘val’ [-Wunused-variable] u32 hcfg, hfir, otgctl, usbcfg, val; ^~~ scripts/Makefile.build:324: recipe for target 'drivers/usb/dwc2/hcd.o' failed I tried to manually get the patch working by looking at the struct definitions in core.h and modified lines hcd.c lines 995-996 as follows (changing core_params to params and dma_enable to host_dma): if ((hsotg->params.host_dma > 0 && hsotg->params.dma_desc_enable <= 0) || This compiles, but doesn't solve the problem. The kernel oops still occurs with the following trace (full dmesg trace can be found at https://paste.ee/p/R8Ccj): [ 50.520879] dwc2 101c0000.usb: --Host Channel 5 Interrupt: Transaction Error-- [ 57.760866] dwc2 101c0000.usb: --Host Channel 10 Interrupt: Transaction Error-- [ 57.846752] dwc2 101c0000.usb: --Host Channel 15 Interrupt: Transaction Error-- [ 57.912946] dwc2 101c0000.usb: --Host Channel 2 Interrupt: Transaction Error-- [ 57.920037] dwc2 101c0000.usb: --Host Channel 13 Interrupt: Transaction Error-- [ 57.926534] dwc2 101c0000.usb: --Host Channel 10 Interrupt: Transaction Error-- [ 57.926588] dwc2 101c0000.usb: dwc2_hc_chhltd_intr_dma: Channel 7 - ChHltd set, but reason is unknown [ 57.935448] dwc2 101c0000.usb: hcint 0x00000002, intsts 0x04000029 [ 57.940901] dwc2 101c0000.usb: dwc2_update_urb_state_abn(): trimming xfer length [ 57.947796] dwc2 101c0000.usb: dwc2_update_urb_state(): trimming xfer length [ 57.985245] dwc2 101c0000.usb: --Host Channel 15 Interrupt: Transaction Error-- [ 57.988891] dwc2 101c0000.usb: --Host Channel 10 Interrupt: Transaction Error-- [ 57.989236] dwc2 101c0000.usb: --Host Channel 14 Interrupt: Transaction Error-- [ 58.005362] dwc2 101c0000.usb: --Host Channel 3 Interrupt: Transaction Error-- [ 58.005486] dwc2 101c0000.usb: --Host Channel 10 Interrupt: Transaction Error-- [ 58.005666] dwc2 101c0000.usb: --Host Channel 15 Interrupt: Transaction Error-- [ 58.006000] dwc2 101c0000.usb: --Host Channel 14 Interrupt: Transaction Error-- [ 58.006143] dwc2 101c0000.usb: --Host Channel 1 Interrupt: Transaction Error-- [ 58.006308] dwc2 101c0000.usb: --Host Channel 15 Interrupt: Transaction Error-- [ 58.006415] dwc2 101c0000.usb: --Host Channel 0 Interrupt: Transaction Error-- [ 58.006574] dwc2 101c0000.usb: --Host Channel 14 Interrupt: Transaction Error-- [ 58.006749] dwc2 101c0000.usb: --Host Channel 10 Interrupt: Transaction Error-- [ 58.020865] Unable to handle kernel paging request at virtual address 76ad3ad7 [ 58.027491] pgd = 7da1f8f3 [ 58.029054] [76ad3ad7] *pgd=00000000 [ 58.031650] Internal error: Oops: 5 [#1] SMP ARM [ 58.035354] Modules linked in: [ 58.037311] CPU: 2 PID: 175 Comm: wget Not tainted 4.15.16 #2 [ 58.042274] Hardware name: Rockchip (Device Tree) [ 58.046086] PC is at kfree_skb_list+0x18/0x28 [ 58.049493] LR is at skb_release_data+0x40/0x134 [ 58.053187] pc : [<c0509fc8>] lr : [<c050a968>] psr: 200d0013 [ 58.058733] sp : eeb1dd60 ip : eeb1dd78 fp : eeb1dd74 [ 58.063114] r10: 00000000 r9 : 00000000 r8 : ee630404 [ 58.067497] r7 : eeb1ddf8 r6 : 00000000 r5 : eea19cc0 r4 : ee4ad540 [ 58.073336] r3 : 00000000 r2 : 00001a00 r1 : 00001240 r0 : 76ad3ad7 [ 58.079176] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none [ 58.085695] Control: 10c5387d Table: 8ebf404a DAC: 00000051 [ 58.090663] Process wget (pid: 175, stack limit = 0x8f583f74) [ 58.095629] Stack: (0xeeb1dd60 to 0xeeb1e000) [ 58.099048] dd60: ee4ad540 eea19cc0 eeb1dd94 eeb1dd78 c050a968 c0509fbc eea19cc0 00000b00 [ 58.106739] dd80: eea19cc0 eeb1ddf8 eeb1ddac eeb1dd98 c0509f30 c050a934 eea19cc0 00000b00 [ 58.114431] dda0: eeb1ddc4 eeb1ddb0 c0509f48 c0509f14 ee630040 00000b00 eeb1de4c eeb1ddc8 [ 58.122121] ddc0: c055c9b8 c0509f40 effda7e0 00000000 eeb1ddec 00000004 eeb1de20 ee6300dc [ 58.129812] dde0: 00000001 00000000 ee6304dc 00000001 eeb1de90 00001500 5ae9a3ec 1dcda13f [ 58.137502] de00: eeb1def0 7fffffff 5ae9a3ec 1dcda13f eeb1de28 eeb1de2c 00000000 00000000 [ 58.145193] de20: 00000008 eeb1de90 c055c374 ee9f50c0 eee8a1c0 00002000 eeb1c000 00000000 [ 58.152883] de40: eeb1de74 eeb1de50 c0583480 c055c380 00000000 eeb1de5c eeb1dedc 00000000 [ 58.160573] de60: c0583438 00002000 eeb1de8c eeb1de78 c04feba8 c0583444 eeb1def0 00002000 [ 58.168263] de80: eeb1dedc eeb1de90 c04fec34 c04feb94 00000000 00000000 00000000 00000b00 [ 58.175952] dea0: 00001500 eeb1dee8 00000001 00000000 00000000 00000000 00000000 eeb1df08 [ 58.183642] dec0: ee9f50c0 00000000 00000000 eeb1df80 eeb1df4c eeb1dee0 c01eaf88 c04febb8 [ 58.191331] dee0: 00002000 00000000 002eee70 00002000 00000000 00000000 00002000 eeb1dee8 [ 58.199019] df00: 00000001 00000000 ee9f50c0 00000000 00000000 00000000 00000000 00000000 [ 58.206701] df20: 00000000 00000000 bed9c3e0 ee9f50c0 00000000 00002000 002eee70 eeb1df80 [ 58.214391] df40: eeb1df7c eeb1df50 c01eb044 c01eae94 c02072ac c020720c eeb1df7c ee9f50c0 [ 58.222082] df60: ee9f50c0 002eee70 00002000 c0107c84 eeb1dfa4 eeb1df80 c01eb4b0 c01eafb8 [ 58.229771] df80: 00000000 00000000 00000000 00000003 0008ce08 00000003 00000000 eeb1dfa8 [ 58.237460] dfa0: c0107aa0 c01eb474 00000000 00000003 00000003 002eee70 00002000 00000000 [ 58.245149] dfc0: 00000000 00000003 0008ce08 00000003 00002000 00000000 000153cd 00000000 [ 58.252840] dfe0: 000850a4 bed9c470 000164e0 b6d54af8 600d0010 00000003 00000000 00010203 [ 58.260519] Backtrace: [ 58.261809] [<c0509fb0>] (kfree_skb_list) from [<c050a968>] (skb_release_data+0x40/0x134) [ 58.269494] r5:eea19cc0 r4:ee4ad540 [ 58.272039] [<c050a928>] (skb_release_data) from [<c0509f30>] (skb_release_all+0x28/0x2c) [ 58.279727] r7:eeb1ddf8 r6:eea19cc0 r5:00000b00 r4:eea19cc0 [ 58.284601] [<c0509f08>] (skb_release_all) from [<c0509f48>] (__kfree_skb+0x14/0x20) [ 58.291799] r5:00000b00 r4:eea19cc0 [ 58.294349] [<c0509f34>] (__kfree_skb) from [<c055c9b8>] (tcp_recvmsg+0x644/0x8c8) [ 58.301354] r5:00000b00 r4:ee630040 [ 58.303904] [<c055c374>] (tcp_recvmsg) from [<c0583480>] (inet_recvmsg+0x48/0xc4) [ 58.310820] r10:00000000 r9:eeb1c000 r8:00002000 r7:eee8a1c0 r6:ee9f50c0 r5:c055c374 [ 58.318113] r4:eeb1de90 [ 58.319494] [<c0583438>] (inet_recvmsg) from [<c04feba8>] (sock_recvmsg+0x20/0x24) [ 58.326498] r5:00002000 r4:c0583438 [ 58.329040] [<c04feb88>] (sock_recvmsg) from [<c04fec34>] (sock_read_iter+0x88/0xb0) [ 58.336239] r5:00002000 r4:eeb1def0 [ 58.338789] [<c04febac>] (sock_read_iter) from [<c01eaf88>] (__vfs_read+0x100/0x124) [ 58.345990] r7:eeb1df80 r6:00000000 r5:00000000 r4:ee9f50c0 [ 58.350868] [<c01eae88>] (__vfs_read) from [<c01eb044>] (vfs_read+0x98/0x104) [ 58.357391] r8:eeb1df80 r7:002eee70 r6:00002000 r5:00000000 r4:ee9f50c0 [ 58.363434] [<c01eafac>] (vfs_read) from [<c01eb4b0>] (SyS_read+0x48/0x80) [ 58.369666] r8:c0107c84 r7:00002000 r6:002eee70 r5:ee9f50c0 r4:ee9f50c0 [ 58.375713] [<c01eb468>] (SyS_read) from [<c0107aa0>] (ret_fast_syscall+0x0/0x54) [ 58.382622] r7:00000003 r6:0008ce08 r5:00000003 r4:00000000 [ 58.387497] Code: e24cb004 e3500000 1a000000 e89da830 (e5904000) [ 58.392955] ---[ end trace 5a0e52dd30feade4 ]--- -- 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
