Re: WARNING: CPU: 2 PID: 633 at net/wireless/sme.c:974 cfg80211_roamed+0x265/0x2a0 [cfg80211]
From: Kalle Valo <hidden>
Date: 2021-10-13 05:18:23
Ammar Faizi [off-list ref] writes:
I am using Jens Axboe's tree.
Last commit from Linus' tree is
9e1ff307c779ce1f0f810c7ecce3d95bbae40896 ("Linux 5.15-rc4").
OS details:
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=21.04
DISTRIB_CODENAME=hirsute
DISTRIB_DESCRIPTION="Ubuntu 21.04"
NAME="Ubuntu"
VERSION="21.04 (Hirsute Hippo)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 21.04"
VERSION_ID="21.04"
I found a kernel warning at net/wireless/sme.c:974. I don't have the
reproducer for it. It's hard to reproduce, because it happens randomly.
I might miss something.
More info:
I am using WiFi on my laptop for general internet use, after several
hours using it, my laptop suddenly freezes for about 3 seconds, then I
can't connect to the internet despite my WiFi is still connected. At
this point, I check dmesg and find these kernel warnings.
If I disconnect and reconnect the WiFi, it works again, but several
moment later, the same will happen again with the same kernel warning.
If anyone has any suggestion what should I do to diagnose this issue,
please guide me, I will be happy to follow it eventhough it may not
solve the problem (I am still happy to try). Maybe recommend me to
compile the kernel with specific configuration, test a patch to fix it
or something.
Here is the log:
<4>[266728.385936][ T633] ------------[ cut here ]------------
<4>[266728.385946][ T633] WARNING: CPU: 2 PID: 633 at net/wireless/sme.c:974 cfg80211_roamed+0x265/0x2a0 [cfg80211]
<4>[266728.386040][ T633] Modules linked in: rfcomm xt_CHECKSUM
xt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp
nft_compat nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6
nf_defrag_ipv4 nft_counter nf_tables nfnetlink bridge stp llc bfq cmac
algif_hash algif_skcipher af_alg bnep dm_multipath scsi_dh_rdac
scsi_dh_emc scsi_dh_alua snd_hda_codec_realtek snd_hda_codec_hdmi
uvcvideo snd_hda_codec_generic ledtrig_audio snd_hda_intel
videobuf2_vmalloc snd_intel_dspcfg videobuf2_memops snd_intel_sdw_acpi
btusb btrtl videobuf2_v4l2 videobuf2_common btbcm snd_hda_codec
btintel videodev snd_hda_core bluetooth snd_hwdep wl(OE) mc snd_pcm
ecdh_generic snd_seq_midi ecc snd_seq_midi_event edac_mce_amd
snd_rawmidi kvm_amd acer_wmi snd_seq sparse_keymap kvm cfg80211
wmi_bmof input_leds serio_raw snd_seq_device snd_timer snd soundcore
ccp fam15h_power k10temp mac_hid sch_fq_codel msr ip_tables x_tables
autofs4 btrfs blake2b_generic raid10 raid456 async_raid6_recov
async_memcpy async_pq
<4>[266728.386224][ T633] async_xor async_tx xor raid6_pq libcrc32c
raid1 raid0 multipath linear amdgpu iommu_v2 gpu_sched radeon
i2c_algo_bit drm_ttm_helper ttm hid_generic drm_kms_helper syscopyarea
usbhid crct10dif_pclmul sysfillrect crc32_pclmul sysimgblt hid
ghash_clmulni_intel fb_sys_fops cec aesni_intel rc_core rtsx_pci_sdmmc
sdhci_pci crypto_simd cqhci r8169 cryptd psmouse ahci xhci_pci
rtsx_pci realtek libahci drm sdhci i2c_piix4 xhci_pci_renesas wmi
video
<4>[266728.386330][ T633] CPU: 2 PID: 633 Comm: wl_event_handle
Tainted: G W OE 5.15.0-rc4-for-5.16-io-uring-00060-g4922ab639eb6 #4
8b24b2500a34cedea2e69c8d84eb4c855e713e61
<4>[266728.386337][ T633] Hardware name: Acer Aspire ES1-421/OLVIA_BE, BIOS V1.05 07/02/2015
<4>[266728.386341][ T633] RIP: 0010:cfg80211_roamed+0x265/0x2a0 [cfg80211]
<4>[266728.386408][ T633] Code: 4c 89 f7 49 8d 8d 22 01 00 00 45 0f b6
85 42 01 00 00 6a 02 48 8b 36 e8 79 ab fc ff 48 89 43 08 5a 48 85 c0
0f 85 d6 fd ff ff <0f> 0b 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3
0f 0b 48 8b 73
<4>[266728.386412][ T633] RSP: 0018:ffffc9000157bdd8 EFLAGS: 00010246
<4>[266728.386418][ T633] RAX: 0000000000000000 RBX: ffffc9000157be20 RCX: 0000000000000000
<4>[266728.386421][ T633] RDX: 0000000000000002 RSI: 0000000000000000 RDI: ffffffff8109ead2
<4>[266728.386425][ T633] RBP: ffffc9000157be10 R08: 0000000000000001 R09: 0000000000000001
<4>[266728.386428][ T633] R10: fffffffefb3c8d52 R11: ffff8881328b75b2 R12: 0000000000000cc0
<4>[266728.386431][ T633] R13: ffff888105873800 R14: ffff8881328b6580 R15: dead000000000100
<4>[266728.386435][ T633] FS: 0000000000000000(0000) GS:ffff888313d00000(0000) knlGS:0000000000000000
<4>[266728.386439][ T633] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[266728.386443][ T633] CR2: 00007f3033edd000 CR3: 000000011a878000 CR4: 00000000000406e0
<4>[266728.386447][ T633] Call Trace:
<4>[266728.386456][ T633] ? wl_update_bss_info.isra.0+0xf5/0x210 [wl 47ce17d152623ac79abb5e1d4a28d4375eb94473]
<4>[266728.386555][ T633] wl_bss_roaming_done.constprop.0+0xc4/0x100 [wl 47ce17d152623ac79abb5e1d4a28d4375eb94473]
<4>[266728.386648][ T633] wl_notify_roaming_status+0x3f/0x60 [wl 47ce17d152623ac79abb5e1d4a28d4375eb94473]
<4>[266728.386730][ T633] wl_event_handler+0x5f/0x140 [wl 47ce17d152623ac79abb5e1d4a28d4375eb94473]
<4>[266728.386808][ T633] ? wl_cfg80211_del_key+0x100/0x100 [wl 47ce17d152623ac79abb5e1d4a28d4375eb94473]What wireless device and driver you have? Based on the call trace it looks like you are using Broadcom's out-of-tree driver called wl. -- https://patchwork.kernel.org/project/linux-wireless/list/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches