This occurs with edison-arduino board, that has a nifty switch allowing
to switch between gadget/host mode. In host mode it boot fine, then
crashes when I flip the switch to gadget.
The below trace if what I get from the console when booting with gadget
mode selected.
The last kernel is used where everything is obviously working fine is 5.6.0.
The kernel is built specifically for the platform, nothing suspcious
going on the the dwc3 area, see
https://github.com/edison-fw/linux/commits/eds-acpi-5.9.0
Magic signature found
Starting kernel ...
[ 2.395631] Initramfs unpacking failed: invalid magic at start of
compressed archive
Scanning for Btrfs filesystems
Starting version 243.2+
Kernel with acpi enabled detected
Loading acpi tables
Waiting for root device /dev/mmcblk0p8
10Found device '/run/media/mmcblk0p8'
9Init found, booting...
[ 10.834272] brcmfmac: brcmf_fw_alloc_request: using
brcm/brcmfmac43340-sdio for chip BCM43340/2
[ 11.179662] brcmfmac: brcmf_fw_alloc_request: using
brcm/brcmfmac43340-sdio for chip BCM43340/2
[ 11.194223] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available
(err=-2), device may have limited channels available
[ 11.234779] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43340/2
wl0: Oct 23 2017 08:41:23 version 6.10.190.70 (r674464) FWID 01-98d71006
[ 12.401620] BUG: unable to handle page fault for address:
0000000100000000
[ 12.408496] #PF: supervisor instruction fetch in kernel mode
[ 12.414145] #PF: error_code(0x0010) - not-present page
[ 12.419276] PGD 0 P4D 0
[ 12.421817] Oops: 0010 [#1] SMP PTI
[ 12.425307] CPU: 0 PID: 488 Comm: irq/15-dwc3 Not tainted
5.9.0-edison-acpi-standard #1
[ 12.433297] Hardware name: Intel Corporation Merrifield/BODEGA BAY,
BIOS 542 2015.01.21:18.19.48
[ 12.442075] RIP: 0010:0x100000000
[ 12.445382] Code: Bad RIP value.
[ 12.448605] RSP: 0000:ffff9a95403fbbf8 EFLAGS: 00010046
[ 12.453827] RAX: 0000000100000000 RBX: ffff8ee8bd32f828 RCX:
ffff8ee8bacc4000
[ 12.460950] RDX: 00000000ffffff94 RSI: ffff8ee8bc01a5a0 RDI:
ffff8ee887228700
[ 12.468075] RBP: ffff8ee8bc01a5a0 R08: 0000000000000046 R09:
0000000000000238
[ 12.475199] R10: 0000000000000004 R11: ffff8ee8ba8ba248 R12:
ffff8ee887228700
[ 12.482322] R13: ffff8ee8bd32f828 R14: 0000000000000002 R15:
ffff8ee8bae93200
[ 12.489449] FS: 0000000000000000(0000) GS:ffff8ee8be200000(0000)
knlGS:0000000000000000
[ 12.497524] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 12.503262] CR2: 0000000100000000 CR3: 000000003c5ae000 CR4:
00000000001006f0
[ 12.510382] Call Trace:
[ 12.512841] ? dwc3_gadget_giveback+0xbf/0x120
[ 12.517286] ? __dwc3_gadget_ep_disable+0xc5/0x250
[ 12.522077] ? dwc3_gadget_ep_disable+0x3d/0xd0
[ 12.526608] ? usb_ep_disable+0x1d/0x80
[ 12.530451] ? u_audio_stop_capture+0x87/0x9a [u_audio]
[ 12.535680] ? afunc_set_alt+0x73/0x80 [usb_f_uac2]
[ 12.540562] ? composite_setup+0x20f/0x1b20 [libcomposite]
[ 12.546053] ? configfs_composite_setup+0x6b/0x90 [libcomposite]
[ 12.552060] ? configfs_composite_setup+0x6b/0x90 [libcomposite]
[ 12.558062] ? dwc3_ep0_delegate_req+0x24/0x40
[ 12.562502] ? dwc3_ep0_interrupt+0x40a/0x9d8
[ 12.566858] ? dwc3_thread_interrupt+0x880/0xf70
[ 12.571475] ? __schedule+0x3ee/0x640
[ 12.575143] ? irq_forced_thread_fn+0x70/0x70
[ 12.579497] ? irq_thread_fn+0x1b/0x60
[ 12.583245] ? irq_thread+0xd3/0x150
[ 12.586821] ? wake_threads_waitq+0x30/0x30
[ 12.591001] ? irq_thread_dtor+0x80/0x80
[ 12.594925] ? kthread+0xf9/0x130
[ 12.598238] ? kthread_park+0x80/0x80
[ 12.601901] ? ret_from_fork+0x22/0x30
[ 12.605644] Modules linked in: spi_pxa2xx_platform dw_dmac usb_f_uac2
u_audio usb_f_mass_storage usb_f_eem u_ether usb_f_serial u_serial
libcomposite pwm_lpss_pci snd_sof_pci snd_sof_intel_byt pwm_lpss
snd_sof_intel_ipc snd_sof_xtensa_dsp intel_mrfld_pwrbtn intel_mrfld_adc
snd_sof snd_sof_nocodec snd_soc_acpi spi_pxa2xx_pci brcmfmac brcmutil
leds_gpio hci_uart btbcm ti_ads7950 industrialio_triggered_buffer
kfifo_buf spidev ledtrig_heartbeat mmc_block extcon_intel_mrfld
sdhci_pci cqhci sdhci led_class mmc_core intel_soc_pmic_mrfld btrfs
libcrc32c xor zstd_compress zlib_deflate raid6_pq
[ 12.657416] CR2: 0000000100000000
[ 12.660729] ---[ end trace 9b92dea6da33c71e ]---
