You have been subscribed to a public bug:
Turn on/off leads to a kernel panic related to rfkill
Hardware ID: 201712-26024
OS: 20.04 Desktop
Kernel: 5.4.0-48-generic
Step to reproduce:
1. Click on/off in the bluetooth settings for a few time
2. Oberserve kernel message as following
[ 126.914032] ------------[ cut here ]------------
[ 126.914034] kernel BUG at mm/slub.c:306!
[ 126.914041] invalid opcode: 0000 [#1] SMP PTI
[ 126.914044] CPU: 6 PID: 4741 Comm: gsd-rfkill Tainted: P OE
5.4.0-48-generic #52-Ubuntu
[ 126.914045] Hardware name: Dell Inc. XPS 13 9370/0173S1, BIOS 1.13.1
07/08/2020
[ 126.914050] RIP: 0010:__slab_free+0x189/0x330
[ 126.914052] Code: 00 48 89 c7 fa 66 0f 1f 44 00 00 f0 49 0f ba 2c 24 00 72
65 4d 3b 6c 24 20 74 11 49 0f ba 34 24 00 57 9d 0f 1f 44 00 00 eb 9f <0f> 0b 49
3b 5c 24 28 75 e8 48 8b 44 24 28 49 89 4c 24 28 49 89 44
[ 126.914054] RSP: 0018:ffffb46f42d73c90 EFLAGS: 00010246
[ 126.914056] RAX: ffff9c6931960a00 RBX: 0000000080200015 RCX: ffff9c6931960a00
[ 126.914057] RDX: ffff9c6931960a00 RSI: ffffe19511c65800 RDI: ffff9c695bff9340
[ 126.914058] RBP: ffffb46f42d73d28 R08: 0000000000000001 R09: ffffffffa4d1b6be
[ 126.914059] R10: ffff9c6931960a00 R11: 0000000000000001 R12: ffffe19511c65800
[ 126.914060] R13: ffff9c6931960a00 R14: ffff9c695bff9340 R15: ffff9c695bff9340
[ 126.914062] FS: 00007fbd905bf840(0000) GS:ffff9c695e580000(0000)
knlGS:0000000000000000
[ 126.914063] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 126.914064] CR2: 00007fc51ed20000 CR3: 00000003e6012002 CR4: 00000000003606e0
[ 126.914066] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 126.914067] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 126.914068] Call Trace:
[ 126.914072] ? finish_wait+0x59/0x70
[ 126.914075] ? wait_woken+0x80/0x80
[ 126.914078] ? kfree_skbmem+0x4e/0x60
[ 126.914080] kmem_cache_free+0x288/0x2b0
[ 126.914085] ? btusb_shutdown_intel_new+0x36/0x60 [btusb]
[ 126.914087] kfree_skbmem+0x4e/0x60
[ 126.914089] kfree_skb+0x3a/0xa0
[ 126.914092] btusb_shutdown_intel_new+0x36/0x60 [btusb]
[ 126.914108] hci_dev_do_close+0x40c/0x520 [bluetooth]
[ 126.914121] hci_rfkill_set_block+0x56/0xa0 [bluetooth]
[ 126.914124] rfkill_set_block+0x9b/0x150
[ 126.914127] rfkill_fop_write+0x136/0x1e0
[ 126.914130] __vfs_write+0x1b/0x40
[ 126.914131] vfs_write+0xb9/0x1a0
[ 126.914134] ksys_write+0xb1/0xe0
[ 126.914136] __x64_sys_write+0x1a/0x20
[ 126.914139] do_syscall_64+0x57/0x190
[ 126.914142] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 126.914144] RIP: 0033:0x7fbd9097021f
[ 126.914146] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 59 65 f8 ff 48
8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00
f0 ff ff 77 2d 44 89 c7 48 89 44 24 08 e8 8c 65 f8 ff 48
[ 126.914147] RSP: 002b:00007fffd6047f00 EFLAGS: 00000293 ORIG_RAX:
0000000000000001
[ 126.914149] RAX: ffffffffffffffda RBX: 00007fbd905bf7c0 RCX: 00007fbd9097021f
[ 126.914150] RDX: 0000000000000008 RSI: 00005581c4fe4dd0 RDI: 0000000000000008
[ 126.914151] RBP: 00007fffd6047f50 R08: 0000000000000000 R09: 000000000000000b
[ 126.914152] R10: 00005581c4fd3dc8 R11: 0000000000000293 R12: 0000000000000001
[ 126.914153] R13: 00007fffd6047fb0 R14: 0000000000000000 R15: 00005581c4fd6020
[ 126.914155] Modules linked in: thunderbolt veth nft_masq nft_chain_nat uhid
rfcomm vboxnetadp(OE) xt_CHECKSUM vboxnetflt(OE) xt_MASQUERADE xt_tcpudp
vboxdrv(OE) bridge stp llc zfs(PO) zunicode(PO) zavl(PO) icp(PO) zcommon(PO)
znvpair(PO) spl(O) zlua(PO) ebtable_filter ebtables ip6table_raw
ip6table_mangle ip6table_nat ip6table_filter ip6_tables iptable_raw
iptable_mangle iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
libcrc32c iptable_filter bpfilter nf_tables nfnetlink ccm aufs cmac algif_hash
algif_skcipher af_alg overlay bnep hid_logitech_hidpp typec_displayport
hid_logitech_dj hid_apple binfmt_misc ftdi_sio usbserial snd_usb_audio
snd_usbmidi_lib mei_hdcp intel_rapl_msr snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_intel_dspcfg
snd_hda_codec x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_core
dell_laptop ledtrig_audio snd_hwdep kvm_intel joydev snd_pcm snd_seq_midi
snd_seq_midi_event dell_wmi kvm crct10dif_pclmul dell_smbios
[ 126.914188] dcdbas snd_rawmidi nls_iso8859_1 cdc_ether ghash_clmulni_intel
usbnet aesni_intel r8152 crypto_simd mii snd_seq iwlmvm cryptd glue_helper
snd_seq_device intel_wmi_thunderbolt wmi_bmof dell_wmi_descriptor rapl
snd_timer intel_cstate mac80211 btusb btrtl btbcm uvcvideo input_leds btintel
libarc4 videobuf2_vmalloc bluetooth serio_raw videobuf2_memops videobuf2_v4l2
videobuf2_common videodev iwlwifi ecdh_generic cdc_acm mc ecc i915 snd cfg80211
soundcore rtsx_pci_ms mei_me memstick drm_kms_helper hid_multitouch mei
ucsi_acpi typec_ucsi i2c_algo_bit fb_sys_fops processor_thermal_device
intel_xhci_usb_role_switch syscopyarea intel_rapl_common roles sysfillrect
typec intel_pch_thermal intel_soc_dts_iosf sysimgblt int3400_thermal mac_hid
intel_hid acpi_thermal_rel int3403_thermal int340x_thermal_zone acpi_pad
sparse_keymap sch_fq_codel parport_pc ppdev lp parport drm ip_tables x_tables
autofs4 usbhid hid_generic rtsx_pci_sdmmc crc32_pclmul nvme nvme_core i2c_i801
rtsx_pci
[ 126.914220] intel_lpss_pci intel_lpss idma64 virt_dma wmi i2c_hid hid
pinctrl_sunrisepoint pinctrl_intel video
[ 126.914227] ---[ end trace c7c2031a2314d2ea ]---
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: rfkill 2.34-0.1ubuntu9.1
ProcVersionSignature: Ubuntu 5.4.0-48.52-generic 5.4.60
Uname: Linux 5.4.0-48-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27.9
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Sep 16 14:49:31 2020
InstallationDate: Installed on 2019-04-26 (508 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
SourcePackage: util-linux
UpgradeStatus: Upgraded to focal on 2020-04-27 (141 days ago)
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal oem-priority
--
rfkill hangs when turn on/off bluetooth
https://bugs.launchpad.net/bugs/1895789
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