Good morning, I encountered the following while attempting to connect to a WiFi AP using iwd. Another user on the Raspberry Pi IRC (ukleinek) suggested I forward that to this group. hbarta@olive:~/MkDocs/my-notes/docs/hosts/Raspberry-Pi/4/allegan$ cat iwd.crash.txt [565142.844103] NET: Registered PF_ALG protocol family [565142.895121] alg: No test for hmac(md4) (hmac(md4-generic)) [565255.271588] ------------[ cut here ]------------ [565255.278557] memcpy: detected field-spanning write (size 72) of single field "&mgmt_frame->u" at drivers/net/wireless/broadcom/brcm80211/brcmfm ac/p2p.c:1469 (size 26) [565255.295948] WARNING: CPU: 1 PID: 1135280 at drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:1469 brcmf_p2p_notify_action_frame_rx+0x30c /0x440 [brcmfmac] [565255.312770] Modules linked in: ghash_generic ghash_ce gf128mul gcm ccm algif_aead des_generic libdes ecb algif_skcipher md4 algif_hash af_alg nf_conntrack_netlink xt_nat veth xt_conntrack bridge stp llc xt_set ip_set xt_addrtype xfrm_user xfrm_algo overlay xt_MASQUERADE xt_tcpudp xt_mark nft_compat nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 tun qrtr binfmt_misc hid_logitech_hidpp joydev hci_uart btqca btrtl bt bcm btintel btsdio bluetooth jitterentropy_rng sha512_generic evdev bcm2835_v4l2(C) hid_logitech_dj sha512_arm64 bcm2835_mmal_vchiq(C) videobuf2_v malloc videobuf2_memops videobuf2_v4l2 cpufreq_dt videobuf2_common videodev aes_neon_bs snd_bcm2835(C) mc aes_neon_blk vc4 zfs(POE) snd_soc_hdmi_c odec snd_soc_core raspberrypi_cpufreq drbg snd_pcm_dmaengine ansi_cprng snd_pcm brcmfmac snd_timer zunicode(POE) brcmutil ecdh_generic pwm_bcm2835 snd zzstd(OE) ecc nls_ascii zlua(OE) iproc_rng200 soundcore nls_cp437 cec bcm2835_wdt vfat fat rc_core bcm2711_thermal vchiq(C) [565255.313189] drm_display_helper v3d zcommon(POE) znvpair(POE) hid_generic gpu_sched drm_dma_helper zavl(POE) drm_shmem_helper drm_kms_helper i cp(POE) leds_gpio spl(OE) sg cfg80211 rfkill nf_tables libcrc32c nfnetlink loop fuse drm efi_pstore dm_mod dax configfs ip_tables x_tables autofs4 usbhid hid ext4 crc16 mbcache jbd2 crc32c_generic sd_mod t10_pi crc64_rocksoft crc64 crc_t10dif crct10dif_generic uas usb_storage scsi_mod scsi_c ommon xhci_pci dwc2 xhci_hcd broadcom udc_core bcm_phy_ptp bcm_phy_lib reset_raspberrypi roles i2c_bcm2835 usbcore genet sdhci_iproc mdio_bcm_unim ac of_mdio usb_common fixed_phy fwnode_mdio crct10dif_ce crct10dif_common sdhci_pltfm libphy fixed sdhci gpio_regulator phy_generic [565255.489912] CPU: 1 PID: 1135280 Comm: kworker/1:3 Tainted: P C OE 6.1.0-33-arm64 #1 Debian 6.1.133-1 [565255.489934] Hardware name: Raspberry Pi 4 Model B Rev 1.5 (DT) [565255.489941] Workqueue: events brcmf_fweh_event_worker [brcmfmac] [565255.490001] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [565255.490013] pc : brcmf_p2p_notify_action_frame_rx+0x30c/0x440 [brcmfmac] [565255.490058] lr : brcmf_p2p_notify_action_frame_rx+0x30c/0x440 [brcmfmac] [565255.490100] sp : ffff80000c8d3c20 [565255.490105] x29: ffff80000c8d3c20 x28: ffff145a4bc40810 x27: 0000000000000048 [565255.490123] x26: ffff145a7c9ed560 x25: 0000000000000048 x24: ffff145a49cd8900 [565255.490139] x23: ffff145a07b6aa98 x22: 0000000000000058 x21: ffff145a07b6aa80 [565255.490154] x20: ffff80000c8d3d78 x19: ffff145a48e139c0 x18: 0000000000000006 [565255.490169] x17: 010300080103060e x16: 0000000000000010 x15: 0000000000000001 [565255.490184] x14: 0000000020000000 x13: 0000000000000002 x12: 0000000000000000 [565255.490199] x11: 00000000ffffefff x10: ffffd291cf1109c8 x9 : ffffd291cd61d33c [565255.490214] x8 : 0000000000017fe8 x7 : c0000000ffffefff x6 : 0000000000000001 [565255.490229] x5 : ffff145a7fb74ad0 x4 : ffff145a7fb74ad0 x3 : ffff145a7fb80c70 [565255.490243] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff145a46768000 [565255.490258] Call trace: [565255.490264] brcmf_p2p_notify_action_frame_rx+0x30c/0x440 [brcmfmac] [565255.490309] brcmf_fweh_call_event_handler+0x44/0xc0 [brcmfmac] [565255.490352] brcmf_fweh_event_worker+0x190/0x490 [brcmfmac] [565255.490395] process_one_work+0x1f4/0x460 [565255.490416] worker_thread+0x188/0x4e0 [565255.490429] kthread+0xe0/0xe4 [565255.490441] ret_from_fork+0x10/0x20 [565255.490455] ---[ end trace 0000000000000000 ]--- [565658.710117] ieee80211 phy0: brcmf_p2p_send_action_frame: Unknown Frame: category 0x5, action 0x4 [565658.721227] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [565704.491659] ieee80211 phy0: brcmf_p2p_send_action_frame: Unknown Frame: category 0x5, action 0x1 root@cheshire:/home/hbarta# This was captured from dmesg output after I connected an Ethernet cable because I experienced it while using the console. I was running iwctl interactively and had entered (to the best of my recollection) commands to scan (nothing reported) and list (reported list of visible APs which seemed incomplete) and connect [AP Name]. The last command prompted for the pass phrasxe and when I entered it and hit return, the stack dump appeared. (Stack dumpo also at https://pastebin.com/CtEMNFxf for 6 months.) The back story on this is that NetworkManager + wpa_supplicant is not reliably maintaining a consistent connection so I am exploring other configurations hoping to improve that. best Edit: I just enabled iwd (systemctl start iwd) and got another stack dump on the console. I've added it to the pastebin. -- Beautiful Sunny Winfield