From: Folkert van Heusden <folkert@vanheusden.com>
To: David Ranch <linux-hams@trinnet.net>
Cc: linux-hams@vger.kernel.org
Subject: Re: crash
Date: Fri, 08 Aug 2025 09:34:56 +0200 [thread overview]
Message-ID: <70fb178a2d178398ce511cd8da54f62a@vanheusden.com> (raw)
In-Reply-To: <6eed3aa0-6fda-3c2a-6f62-2b6314e5500d@trinnet.net>
I tried to explain it with a drawing:
https://vanheusden.com/permshare/ax25crash.png
So: I do a axcall to an fbb running on the same pi but via 2 connected
traceivers that are 400 meters away from each other. Session setup
works(!!), I get to see the BBS welcome screen but as soon as I press
enter to send my name, things crash. So this is after a succesful SABM
etc. Also sending beacons (via remote or local tranceiver) does not
trigger anything.
On 2025-08-08 00:18, David Ranch wrote:
> Can you tell us EXACTLY what you're doing so others can try to
> reproduce the crash? What specific distro and kernel version are you
> running on your Rpi5?
>
> --David
> KI6ZHD
>
> https://vanheusden.com/permshare/ax25crash.png
> On 08/07/2025 10:37 AM, Folkert van Heusden wrote:
>> Ok, I succeed (quite easily) to trigger the crash.
>>
>> Anything I can do to help resolve this issue?
>>
>> Aug 07 19:32:05 27mc5 kernel: ------------[ cut here ]------------
>> Aug 07 19:32:05 27mc5 kernel: netpoll_send_skb_on_dev(): eth0 enabled
>> interrupts in poll (macb_start_xmit+0x0/0xbc0)
>> Aug 07 19:32:05 27mc5 kernel: WARNING: CPU: 2 PID: 3487 at
>> net/core/netpoll.c:365 __netpoll_send_skb+0x240/0x258
>> Aug 07 19:32:05 27mc5 kernel: Modules linked in: snd_seq_dummy
>> snd_hrtimer snd_seq mkiss netrom ax25 netconsole rfcomm algif_hash
>> algif_skcipher af_alg bnep binfmt_misc spidev brcmfmac_wcc hci_uart
>> btbcm bluetooth aes_ce_blk aes_ce_cipher brcmfmac vc4 ghash_ce
>> ecdh_generic gf128mul sha2_ce sha256_arm64 sha1_ce sha1_generic
>> brcmutil rpi_hevc_dec v4l2_mem2mem snd_soc_hdmi_codec pisp_be ecc
>> cfg80211 libaes videobuf2_dma_contig drm_display_helper
>> raspberrypi_hwmon cec drm_dma_helper videobuf2_memops snd_soc_core
>> snd_usb_audio rfkill snd_hwdep snd_usbmidi_lib spi_bcm2835 snd_rawmidi
>> videobuf2_v4l2 i2c_brcmstb videodev v3d snd_compress snd_pcm_dmaengine
>> gpio_keys videobuf2_common snd_seq_device snd_pcm gpu_sched
>> drm_shmem_helper snd_timer pwm_fan drm_kms_helper mc snd rp1_pio
>> rp1_mailbox rp1_adc rp1_fw raspberrypi_gpiomem nvmem_rmem sch_fq_codel
>> fuse drm drm_panel_orientation_quirks backlight nfnetlink ip_tables
>> x_tables ipv6 uio_pdrv_genirq uio
>> Aug 07 19:32:05 27mc5 kernel: CPU: 2 UID: 0 PID: 3487 Comm:
>> kworker/u19:0 Not tainted 6.12.34+rpt-rpi-v8 #1 Debian
>> 1:6.12.34-1+rpt1
>> Aug 07 19:32:05 27mc5 kernel: Hardware name: Raspberry Pi 5 Model B
>> Rev 1.0 (DT)
>> Aug 07 19:32:05 27mc5 kernel: Workqueue: events_unbound flush_to_ldisc
>> Aug 07 19:32:05 27mc5 kernel: pstate: 60400009 (nZCv daif +PAN -UAO
>> -TCO -DIT -SSBS BTYPE=--)
>> Aug 07 19:32:05 27mc5 kernel: pc : __netpoll_send_skb+0x240/0x258
>> Aug 07 19:32:05 27mc5 kernel: lr : __netpoll_send_skb+0x240/0x258
>> Aug 07 19:32:05 27mc5 kernel: sp : ffffffc080013540
>> Aug 07 19:32:05 27mc5 kernel: x29: ffffffc080013540 x28:
>> ffffff81c12fa598 x27: ffffffd08db35720
>> Aug 07 19:32:05 27mc5 kernel: x26: 0000000000000050 x25:
>> 0000000000000000 x24: ffffff8140c58e00
>> Aug 07 19:32:05 27mc5 kernel: x23: ffffff81813c7620 x22:
>> ffffff81c12fa598 x21: ffffff81813c7600
>> Aug 07 19:32:05 27mc5 kernel: x20: ffffff8002554000 x19:
>> ffffff8141858200 x18: 00000000fffffffd
>> Aug 07 19:32:05 27mc5 kernel: x17: 2065636e65726566 x16:
>> 6572656420726574 x15: ffffffc080012e14
>> Aug 07 19:32:05 27mc5 kernel: x14: 0000000000000001 x13:
>> ffffffc100012e0c x12: 6920737470757272
>> Aug 07 19:32:05 27mc5 kernel: x11: ffffffd08d9054f8 x10:
>> 0000000000000278 x9 : ffffffd08c51e56c
>> Aug 07 19:32:05 27mc5 kernel: x8 : 0000000000017fe8 x7 :
>> 00000000fffff000 x6 : ffffffd08d95d4f8
>> Aug 07 19:32:05 27mc5 kernel: x5 : ffffff803bbbc3c8 x4 :
>> 0000000000000000 x3 : ffffffafae3a2000
>> Aug 07 19:32:05 27mc5 kernel: x2 : 0000000000000000 x1 :
>> 0000000000000000 x0 : ffffff8002d30000
>> Aug 07 19:32:05 27mc5 kernel: Call trace:
>> Aug 07 19:32:05 27mc5 kernel: __netpoll_send_skb+0x240/0x258
>> Aug 07 19:32:05 27mc5 kernel: netpoll_send_udp+0x260/0x410
>> Aug 07 19:32:05 27mc5 kernel: write_msg+0x100/0x138 [netconsole]
>> Aug 07 19:32:05 27mc5 kernel: console_flush_all+0x2c8/0x450
>> Aug 07 19:32:05 27mc5 kernel: console_unlock+0x8c/0x160
>> Aug 07 19:32:05 27mc5 kernel: vprintk_emit+0x2e8/0x340
>> Aug 07 19:32:05 27mc5 kernel: vprintk_default+0x40/0x58
>> Aug 07 19:32:05 27mc5 kernel: vprintk+0x50/0x100
>> Aug 07 19:32:05 27mc5 kernel: _printk+0x68/0xa0
>> Aug 07 19:32:05 27mc5 kernel: die_kernel_fault+0x4c/0x380
>> Aug 07 19:32:05 27mc5 kernel: __do_kernel_fault+0x190/0x198
>> Aug 07 19:32:05 27mc5 kernel: do_page_fault+0x228/0x5a0
>> Aug 07 19:32:05 27mc5 kernel: do_translation_fault+0xb4/0xe0
>> Aug 07 19:32:05 27mc5 kernel: do_mem_abort+0x48/0xa0
>> Aug 07 19:32:05 27mc5 kernel: el1_abort+0x40/0x68
>> Aug 07 19:32:05 27mc5 kernel:
>> el1h_64_sync_handler+0xa4/0xe8https://vanheusden.com/permshare/ax25crash.png
>> Aug 07 19:32:05 27mc5 kernel: el1h_64_sync+0x64/0x68
>> Aug 07 19:32:05 27mc5 kernel:
>> __netif_receive_skb_core.constprop.0+0xbac/0x1078
>> Aug 07 19:32:05 27mc5 kernel: __netif_receive_skb_one_core+0x48/0xa0
>> Aug 07 19:32:05 27mc5 kernel: __netif_receive_skb+0x20/0x70
>> Aug 07 19:32:05 27mc5 kernel: process_backlog+0x8c/0x150
>> Aug 07 19:32:05 27mc5 kernel: __napi_poll+0x40/0x208
>> Aug 07 19:32:05 27mc5 kernel: net_rx_action+0x324/0x380
>> Aug 07 19:32:05 27mc5 kernel: handle_softirqs+0x11c/0x350
>> Aug 07 19:32:05 27mc5 kernel: __do_softirq+0x1c/0x28
>> Aug 07 19:32:05 27mc5 kernel: ____do_softirq+0x18/0x30
>> Aug 07 19:32:05 27mc5 kernel: call_on_irq_stack+0x24/0x58
>> Aug 07 19:32:05 27mc5 kernel: do_softirq_own_stack+0x24/0x50
>> Aug 07 19:32:05 27mc5 kernel: do_softirq+0x5c/0x80
>> Aug 07 19:32:05 27mc5 kernel: __local_bh_enable_ip+0x94/0xb0
>> Aug 07 19:32:05 27mc5 kernel: _raw_spin_unlock_bh+0x28/0x40
>> Aug 07 19:32:05 27mc5 kernel: mkiss_receive_buf+0x4c8/0x5c8 [mkiss]
>> Aug 07 19:32:05 27mc5 kernel: tty_ldisc_receive_buf+0x60/0x80
>> Aug 07 19:32:05 27mc5 kernel: tty_port_default_receive_buf+0x4c/0x98
>> Aug 07 19:32:05 27mc5 kernel: flush_to_ldisc+0xbc/0x1b0
>> Aug 07 19:32:05 27mc5 kernel: process_one_work+0x158/0x3d0
>> Aug 07 19:32:05 27mc5 kernel: worker_thread+0x2c4/0x3e8
>> Aug 07 19:32:05 27mc5 kernel: kthread+0x118/0x128
>> Aug 07 19:32:05 27mc5 kernel: ret_from_fork+0x10/0x20
>> Aug 07 19:32:05 27mc5 kernel: ---[ end trace 0000000000000000 ]---
>> Aug 07 19:32:05 27mc5 kernel: Mem abort info:
>> Aug 07 19:32:05 27mc5 kernel: ESR = 0x0000000096000007
>> Aug 07 19:32:05 27mc5 kernel: EC = 0x25: DABT (current EL), IL = 32
>> bits
>> Aug 07 19:32:05 27mc5 kernel: SET = 0, FnV = 0
>> Aug 07 19:32:05 27mc5 kernel: EA = 0, S1PTW = 0
>> Aug 07 19:32:05 27mc5 kernel: FSC = 0x07: level 3 translation fault
>> Aug 07 19:32:05 27mc5 kernel: Data abort info:
>> Aug 07 19:32:05 27mc5 kernel: ISV = 0, ISS = 0x00000007, ISS2 =
>> 0x00000000
>> Aug 07 19:32:05 27mc5 kernel: CM = 0, WnR = 0, TnD = 0, TagAccess =
>> 0
>> Aug 07 19:32:05 27mc5 kernel: GCS = 0, Overlay = 0, DirtyBit = 0, Xs
>> = 0
>> Aug 07 19:32:05 27mc5 kernel: user pgtable: 4k pages, 39-bit VAs,
>> pgdp=0000000081c62000
>> Aug 07 19:32:05 27mc5 kernel: [00000000000000d0] pgd=0800000181627003,
>> p4d=0800000181627003, pud=0800000181627003, pmd=08000000c0927003,
>> pte=0000000000000000
>> Aug 07 19:32:05 27mc5 kernel: Internal error: Oops: 0000000096000007
>> [#1] PREEMPT SMP
>> Aug 07 19:32:05 27mc5 kernel: Modules linked in: snd_seq_dummy
>> snd_hrtimer snd_seq mkiss netrom ax25 netconsole rfcomm algif_hash
>> algif_skcipher af_alg bnep binfmt_misc spidev brcmfmac_wcc hci_uart
>> btbcm bluetooth aes_ce_blk aes_ce_cipher brcmfmac vc4 ghash_ce
>> ecdh_generic gf128mul sha2_ce sha256_arm64 sha1_ce sha1_generic
>> brcmutil rpi_hevc_dec v4l2_mem2mem snd_soc_hdmi_codec pisp_be ecc
>> cfg80211 libaes videobuf2_dma_contig drm_display_helper
>> raspberrypi_hwmon cec drm_dma_helper videobuf2_memops snd_soc_core
>> snd_usb_audio rfkill snd_hwdep snd_usbmidi_lib spi_bcm2835 snd_rawmidi
>> videobuf2_v4l2 i2c_brcmstb videodev v3d snd_compress snd_pcm_dmaengine
>> gpio_keys videobuf2_common snd_seq_device snd_pcm gpu_sched
>> drm_shmem_helper snd_timer pwm_fan drm_kms_helper mc snd rp1_pio
>> rp1_mailbox rp1_adc rp1_fw raspberrypi_gpiomem nvmem_rmem sch_fq_codel
>> fuse drm drm_panel_orientation_quirks backlight nfnetlink ip_tables
>> x_tables ipv6 uio_pdrv_genirq uio
>> Aug 07 19:32:06 27mc5 kernel: CPU: 2 UID: 0 PID: 3487 Comm:
>> kworker/u19:0 Tainted: G W 6.12.34+rpt-rpi-v8 #1
>> Debian 1:6.12.34-1+rpt1
>> Aug 07 19:32:06 27mc5 kernel: Tainted: [W]=WARN
>> Aug 07 19:32:06 27mc5 kernel: Hardware name: Raspberry Pi 5 Model B
>> Rev 1.0 (DT)
>> Aug 07 19:32:06 27mc5 kernel: Workqueue: events_unbound flush_to_ldisc
>> Aug 07 19:32:06 27mc5 kernel: pstate: a0400009 (NzCv daif +PAN -UAO
>> -TCO -DIT -SSBS BTYPE=--)
>> Aug 07 19:32:06 27mc5 kernel: pc :
>> __netif_receive_skb_core.constprop.0+0xbac/0x1078
>> Aug 07 19:32:06 27mc5 kernel: lr :
>> __netif_receive_skb_core.constprop.0+0x3d8/0x1078
>> Aug 07 19:32:06 27mc5 kernel: sp : ffffffc080013be0
>> Aug 07 19:32:06 27mc5 kernel: x29: ffffffc080013cd0 x28:
>> 0000000000000200 x27: ffffffd08d8d6000
>> Aug 07 19:32:06 27mc5 kernel: x26: ffffff81030100d0 x25:
>> 0000000000000001 x24: 0000000000000000
>> Aug 07 19:32:06 27mc5 kernel: x23: ffffff81815bbd40 x22:
>> ffffff80037a5f00 x21: ffffff8103010000
>> Aug 07 19:32:06 27mc5 kernel: x20: ffffff8103010098 x19:
>> 0000000000000001 x18: 0000000000000000
>> Aug 07 19:32:06 27mc5 kernel: x17: ffffffafae3a2000 x16:
>> ffffffd08c5670b8 x15: 0000000001f88000
>> Aug 07 19:32:06 27mc5 kernel: x14: 0000000000000000 x13:
>> 0d7472656b6c6f66 x12: 0000000000000000
>> Aug 07 19:32:06 27mc5 kernel: x11: ffffff800295bc00 x10:
>> 0000000000000000 x9 : ffffffd054b7cce4
>> Aug 07 19:32:06 27mc5 kernel: x8 : ffffffc080013b4e x7 :
>> 0000000000000008 x6 : ffffff818092a6cf
>> Aug 07 19:32:06 27mc5 kernel: x5 : ffffff803bbbe478 x4 :
>> 000000002e400002 x3 : ffffff803bbbde68
>> -- Boot bc94ab5233404429bb82f58840e0d2a6 --
>>
>>
--
www.vanheusden.com
next prev parent reply other threads:[~2025-08-08 7:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-07 17:37 crash Folkert van Heusden
2025-08-07 22:18 ` crash David Ranch
2025-08-08 7:34 ` Folkert van Heusden [this message]
2025-08-08 7:49 ` crash Gavin Rogers
[not found] ` <30172f07ac135c4996c5023a66de2afa@vanheusden.com>
2025-08-09 11:23 ` crash Folkert van Heusden
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=70fb178a2d178398ce511cd8da54f62a@vanheusden.com \
--to=folkert@vanheusden.com \
--cc=linux-hams@trinnet.net \
--cc=linux-hams@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).