Ferry Toth <fntoth@xxxxxxxxx> writes: Hi, > Op 19-10-2020 om 09:14 schreef Ferry Toth: >> Op 19-10-2020 om 07:45 schreef Felipe Balbi: >>> >>> Hi Andy, >>> >>> Ferry Toth <fntoth@xxxxxxxxx> writes: >>>> 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 ]--- >>> >>> It this something you can reproduce on your end? Ferry, can you get dwc3 >>> trace logs when this happens? ftrace_dump_on_oops may help here. >>> >> I will do that tonight. Is flipping on ftrace_dump_on_oops sufficient or >> do I need to do more? >> >> BTW after posting this I found in host mode dwc3 is not working properly >> either. No oops, but no driver get loaded on device plug in. >> > Not sure if this is what you are looking for (otherwise let me know): > > root@edison:/proc/sys/kernel# echo 1 > ftrace_dump_on_oops > ## flip the switch from host to gadget > root@edison:/proc/sys/kernel# [ 515.866590] BUG: kernel NULL pointer > dereference, address: 0000000000000000 > [ 515.873553] #PF: supervisor read access in kernel mode > [ 515.878682] #PF: error_code(0x0000) - not-present page > [ 515.883814] PGD 0 P4D 0 > [ 515.886352] Oops: 0000 [#1] SMP PTI > [ 515.889844] CPU: 0 PID: 490 Comm: irq/15-dwc3 Not tainted > 5.9.0-edison-acpi-standard #1 > [ 515.897836] Hardware name: Intel Corporation Merrifield/BODEGA BAY, > BIOS 542 2015.01.21:18.19.48 > [ 515.906621] RIP: 0010:dwc3_gadget_ep_dequeue+0x41/0x1c0 what do you get with: $ gdb vmlinux (gdb) l *(dwc3_gadget_ep_dequeue+0x41) ?? -- balbi
Attachment:
signature.asc
Description: PGP signature
