From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from vps001.vanheusden.com (fatelectron.soleus.nu [94.142.246.159]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9290F239E70 for ; Fri, 8 Aug 2025 07:34:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=94.142.246.159 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754638503; cv=none; b=olCnCVl98U6oz3BWTSw9CwafGwWK8n5h7IczbOkRdDJibe4AJaAObiK9NutAYX5aCQRabnk0qpoGRZJR8iqJaesvp9LOhQoKKfkkIV92QlqbISjDd3hdZ0+O0HEX6hlB842Tj+/tiQ4oer+FrPjbl1rhg+6E9AysgSszP+YozYE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754638503; c=relaxed/simple; bh=zBZ+m2zTe4WO6i7BJNKnkL95wxt9R7Gn6nkTBnGiECw=; h=MIME-Version:Date:From:To:Cc:Subject:In-Reply-To:References: Message-ID:Content-Type; b=sxAZfNQmnuybFdSDIQQ0XOxOzFl7TPXTpLZB/xRe2sbLsBlRyamDYcK9hjC6dieahJ9Vl66ZqxkvpapkK4RxuzP/NqKpVXnELWGANbM+i9D1DwUmYL1arW49KVR2xG9zebU1CFB6aiqevSmgTVO4MhzBrODE3sVmrHIZGTszNcU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=vanheusden.com; spf=pass smtp.mailfrom=vanheusden.com; arc=none smtp.client-ip=94.142.246.159 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=vanheusden.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=vanheusden.com Received: from webmail.vanheusden.com (unknown [172.29.0.1]) by vps001.vanheusden.com (Postfix) with ESMTPA id C315A500286; Fri, 08 Aug 2025 09:34:56 +0200 (CEST) Precedence: bulk X-Mailing-List: linux-hams@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Date: Fri, 08 Aug 2025 09:34:56 +0200 From: Folkert van Heusden To: David Ranch Cc: linux-hams@vger.kernel.org Subject: Re: crash In-Reply-To: <6eed3aa0-6fda-3c2a-6f62-2b6314e5500d@trinnet.net> References: <7c4ff0c7c6faa8722e858c92f6456dc7@vanheusden.com> <6eed3aa0-6fda-3c2a-6f62-2b6314e5500d@trinnet.net> Message-ID: <70fb178a2d178398ce511cd8da54f62a@vanheusden.com> X-Sender: folkert@vanheusden.com Organization: www.vanheusden.com Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit 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