No Ethernet on Raspberry Pi 3 in v4.13-rc1

Mon Jul 24 04:22:24 PDT 2017

Hi Andreas,

On 22/07/17 13:29, Andreas Färber wrote:
> Hello,
> 
> With arm64 4.13-rc1 I get no eth0 device on Pi3 (openSUSE Tumbleweed).
> The v4.13-rc1 DT works okay with a 4.12 kernel.
> 
> Possibly related:
> 
> [   15.916350] OF: /soc/usb at 7e980000: could not get #phy-cells for /phy
> 
> [   16.496662] usb 1-1: new high-speed USB device number 2 using dwc2
> [   16.502988] dwc2 3f980000.usb: Cannot do DMA to address
> 0x00000000335da400

This is from SWIOTLB's map_single(), which means whatever device was
passed into dma_map_single() when mapping the URB had a DMA mask smaller
than 30 bits (or none at all), which sounds wrong and is almost
certainly the root of the problem (i.e. it probably wasn't the actual
HCD device described in DT and set up by of_dma_configure()). However,
arm64's __swiotlb_map_page() still shouldn't be trying to perform cache
maintenance on the error value returned, which looks to be where the
actual splat below hails from - leave that one with me ;)

Robin.

> [   16.510035] Unable to handle kernel paging request at virtual address
> ffff800000000000
> [   16.518103] swapper pgtable: 4k pages, 48-bit VAs, pgd = ffff0000096ac000
> [   16.524995] [ffff800000000000] *pgd=0000000036ff7003,
> *pud=0000000036ff6003, *pmd=0000000036ff5003, *pte=0000000000000000
> [   16.536229] Internal error: Oops: 96000147 [#1] SMP
> [   16.536243] Modules linked in: brcmutil cfg80211 soundcore
> drm_kms_helper rfkill drm fb_sys_fops syscopyarea dwc2 sysfillrect
> sysimgblt udc_core usbcore i2c_bcm2835 bcm2835_rng spi_bcm2835
> pwm_bcm2835 bcm2835_wdt uio_pdrv_genirq uio crc32_ce phy_generic
> leds_gpio mmc_block sdhci_iproc sdhci_pltfm sdhci bcm2835 mmc_core
> bcm2835_dma sg efivarfs
> [   16.536335] CPU: 1 PID: 34 Comm: kworker/1:1 Not tainted
> 4.13.0-rc1-2.g9c198f2-default #1
> [   16.536338] Hardware name: raspberrypi rpi/rpi, BIOS 2017.07-rc3
> 07/10/2017
> [   16.536560] Workqueue: usb_hub_wq hub_event [usbcore]
> [   16.536568] task: ffff800034cc6100 task.stack: ffff800034ccc000
> [   16.536585] PC is at __clean_dcache_area_poc+0x20/0x40
> [   16.536592] LR is at __swiotlb_map_page+0x9c/0xb8
> [   16.536597] pc : [<ffff00000809c160>] lr : [<ffff00000809a254>]
> pstate: 80000145
> [   16.536600] sp : ffff800034ccf8f0
> [   16.536603] x29: ffff800034ccf8f0 x28: ffff000000b2cfe8
> [   16.536611] x27: 0000000000000080 x26: ffff8000335a6800
> [   16.536619] x25: 0000000080000080 x24: 0000000000000400
> [   16.536626] x23: 0000000000000001 x22: 0000000000000008
> [   16.536633] x21: 00000000c0000000 x20: 0000000000000000
> [   16.536640] x19: ffff800034cf0c10 x18: ffffffffffffffff
> [   16.536647] x17: 0000000000003000 x16: ffff7e0000bd0080
> [   16.536654] x15: ffff000009429c08 x14: ffff0000895ba17f
> [   16.536662] x13: ffff0000095ba18d x12: ffff000009450000
> [   16.536669] x11: ffff00000942a078 x10: ffff000008624e28
> [   16.536676] x9 : 00000000ffffffd0 x8 : 0000000000000017
> [   16.536683] x7 : 3030303030307830 x6 : 00000000000000f6
> [   16.536690] x5 : 0000000000000000 x4 : 0000000000000002
> [   16.536696] x3 : 000000000000003f x2 : 0000000000000040
> [   16.536703] x1 : ffff800000000008 x0 : ffff800000000000
> [   16.536712] Process kworker/1:1 (pid: 34, stack limit =
> 0xffff800034ccc000)
> [   16.536718] Stack: (0xffff800034ccf8f0 to 0xffff800034cd0000)
> [   16.536724] f8e0:                                   ffff800034ccf930
> ffff000000b028c0
> [   16.536732] f900: ffff800026549100 0000000001400000 ffff80003446fc00
> 0000000001400000
> [   16.536739] f920: 0000000000000002 0000000000000000 ffff800034ccf980
> ffff000000b9784c
> [   16.536746] f940: ffff800026549100 0000000001400000 ffff80003446fc00
> 0000000001400000
> [   16.536754] f960: ffff800034ccfa80 ffff000008669290 0000000000000006
> ffff8000335a6898
> [   16.536761] f980: ffff800034ccf9b0 ffff000000b038d8 ffff800026549100
> ffff80003446fc00
> [   16.536769] f9a0: ffff000009429c08 ffff800032b65800 ffff800034ccfa90
> ffff000000b0574c
> [   16.536776] f9c0: ffff800026549100 ffff8000335a6800 0000000000000000
> 0000000001400000
> [   16.536783] f9e0: ffff800034ccfaf0 00000000ffffffd8 ffff800036f60080
> 4554535953425553
> [   16.536791] fa00: 4544006273753d4d ffff000000b2cfe8 ffff00312d313a62
> ffff800034ccfb00
> [   16.536799] fa20: ffff800034ccfa50 ffff00000814c7f4 ffff800034ccfa50
> ffff00000814c804
> [   16.536807] fa40: ffff800036f60080 0000000000000000 ffff800034ccfa80
> ffff00000814de54
> [   16.536814] fa60: ffff800034ccfb00 0000000000000032 ffff80002649c400
> 0000000000040d00
> [   16.536821] fa80: ffff800034ccfb20 0000000000040d00 ffff800034ccfaf0
> ffff000000b06184
> [   16.536829] faa0: ffff800026549100 ffff800034ccfb38 0000000000000000
> ffff800034ccfbcc
> [   16.536836] fac0: 0000000000001388 ffff800033175800 ffff800034ccfaf0
> ffff000000b06170
> [   16.536843] fae0: ffff800026549100 0000000001400000 ffff800034ccfb60
> ffff000000b06324
> [   16.536850] fb00: ffff8000335da400 0000000000000040 0000000000000000
> 0000000000000100
> [   16.536858] fb20: 0000000000000006 ffff800033175800 0000000080000080
> ffff800000000000
> [   16.536865] fb40: ffff800000000000 ffff800034ccfb48 ffff800034ccfb48
> 0000000000000040
> [   16.536873] fb60: ffff800034ccfbe0 ffff000000afaa54 ffff8000335a6800
> ffff8000264ac000
> [   16.536879] fb80: ffff80003446fc00 0000000000000001 0000000000000003
> 0000000000000002
> [   16.536887] fba0: ffff800033175800 0000000080000080 0000000000000000
> 0000000000000002
> [   16.536894] fbc0: 0000000000000000 ffff800032b65800 ffff800000001388
> ffff800032b65800
> [   16.536901] fbe0: ffff800034ccfc50 ffff000000afe7d0 ffff8000264ac000
> 0000000000000001
> [   16.536909] fc00: ffff800032b65800 0000000000000000 ffff80002649c400
> ffff80003446fc30
> [   16.536916] fc20: ffff80003446fc00 ffff80003446fc00 ffff8000335a6800
> ffff80002649c718
> [   16.536924] fc40: 0000000300000001 0000003200000000 ffff800034ccfce0
> ffff000000aff714
> [   16.536931] fc60: ffff8000264ac000 0000000000000001 ffff8000264ac058
> ffff80002649c718
> [   16.536939] fc80: ffff80002649c718 0000000000000101 0000000000000000
> ffff80002649c408
> [   16.536946] fca0: 0000000000000000 0000000000000000 ffff000000b2ed28
> 0000006400aff34c
> [   16.536953] fcc0: ffff800000000002 ffff000000b2d018 ffff8000264ac000
> 0000000000000004
> [   16.536961] fce0: ffff800034ccfdc0 ffff0000080e8c0c ffff8000264ac1d0
> ffff8000357a4f00
> [   16.536968] fd00: ffff7dffbffa9100 0000000000000000 ffff800036f67980
> 0000000000000000
> [   16.536975] fd20: 00000000fffffef7 ffff000008b77728 0000000000000000
> 0000000000000000
> [   16.536982] fd40: ffff8000264ac170 ffff8000357a4f00 ffff800036f6bd00
> 0000000000000000
> [   16.536990] fd60: ffff000000b2efc8 ffff800032b658f8 ffff8000344a5c00
> ffff8000264ac058
> [   16.536997] fd80: ffff8000264ac1d0 0000000000000000 ffff800032b65800
> ffff8000264ac070
> [   16.537004] fda0: ffff8000264ac060 ffff8000344a5c30 ffff8000264ac1d0
> ffff800000000101
> [   16.537012] fdc0: ffff800034ccfe10 ffff0000080e8ec0 ffff8000357a4f00
> ffff800036f67980
> [   16.537020] fde0: ffff8000357a4f30 ffff0000095b5800 ffff800036f679a0
> ffff000009427000
> [   16.537027] fe00: ffff8000357a4f00 ffff0000080e8f54 ffff800034ccfe70
> ffff0000080effa8
> [   16.537035] fe20: ffff8000357a0680 ffff800034c46680 ffff800034cc6100
> ffff000008b77728
> [   16.537042] fe40: ffff800035703d00 ffff8000357a4f00 ffff0000080e8e70
> ffff800034c46680
> [   16.537050] fe60: ffff800034ccfe70 ffff0000080eff4c 0000000000000000
> ffff0000080836c0
> [   16.537057] fe80: ffff0000080efe70 ffff8000357a0680 0000000000000000
> 0000000000000000
> [   16.537063] fea0: 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
> [   16.537070] fec0: 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
> [   16.537076] fee0: 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
> [   16.537083] ff00: 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
> [   16.537089] ff20: 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
> [   16.537096] ff40: 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
> [   16.537102] ff60: 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
> [   16.537109] ff80: 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
> [   16.537116] ffa0: 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
> [   16.537122] ffc0: 0000000000000000 0000000000000005 0000000000000000
> 0000000000000000
> [   16.537129] ffe0: 0000000000000000 0000000000000000 57810d82330b7058
> a6c1bc314470bbc6
> [   16.537133] Call trace:
> [   16.537139] Exception stack(0xffff800034ccf720 to 0xffff800034ccf850)
> [   16.537147] f720: ffff800034cf0c10 0001000000000000 ffff800034ccf8f0
> ffff00000809c160
> [   16.537154] f740: ffff800034ccf7b0 ffff800034ccf7b0 ffff800034ccf780
> 00000000ffffffd8
> [   16.537162] f760: ffff800034ccf7b0 ffff800034ccf7b0 ffff800034ccf780
> 00000000ffffffd8
> [   16.537169] f780: ffff0000096940a8 ffff000000bac320 ffff800034cec780
> ffff800034ccf800
> [   16.537176] f7a0: ffff00000968e0a0 0000000000000008 ffff800034ccf7e0
> ffff000008669664
> [   16.537183] f7c0: ffff800000000000 ffff800000000008 0000000000000040
> 000000000000003f
> [   16.537190] f7e0: 0000000000000002 0000000000000000 00000000000000f6
> 3030303030307830
> [   16.537197] f800: 0000000000000017 00000000ffffffd0 ffff000008624e28
> ffff00000942a078
> [   16.537204] f820: ffff000009450000 ffff0000095ba18d ffff0000895ba17f
> ffff000009429c08
> [   16.537209] f840: ffff7e0000bd0080 0000000000003000
> [   16.537219] [<ffff00000809c160>] __clean_dcache_area_poc+0x20/0x40
> [   16.537422] [<ffff000000b028c0>] usb_hcd_map_urb_for_dma+0x1e8/0x598
> [usbcore]
> [   16.537544] [<ffff000000b9784c>] dwc2_map_urb_for_dma+0x54/0xf0 [dwc2]
> [   16.537726] [<ffff000000b038d8>] usb_hcd_submit_urb+0xc0/0xb10 [usbcore]
> [   16.537902] [<ffff000000b0574c>] usb_submit_urb+0x23c/0x588 [usbcore]
> [   16.538078] [<ffff000000b06184>] usb_start_wait_urb+0x54/0x148 [usbcore]
> [   16.538253] [<ffff000000b06324>] usb_control_msg+0xac/0x108 [usbcore]
> [   16.538427] [<ffff000000afaa54>] hub_port_init+0x194/0xb38 [usbcore]
> [   16.538602] [<ffff000000afe7d0>] hub_port_connect+0x128/0x8e8 [usbcore]
> [   16.538777] [<ffff000000aff714>] hub_event+0x784/0xa38 [usbcore]
> [   16.538792] [<ffff0000080e8c0c>] process_one_work+0x1e4/0x448
> [   16.538800] [<ffff0000080e8ec0>] worker_thread+0x50/0x488
> [   16.538811] [<ffff0000080effa8>] kthread+0x138/0x140
> [   16.538821] [<ffff0000080836c0>] ret_from_fork+0x10/0x50
> [   16.538831] Code: 9ac32042 8b010001 d1000443 8a230000 (d50b7a20)
> [   16.538883] ---[ end trace 7c524f10d9e752dc ]---
> 
> Regards,
> Andreas
> 