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** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1872984
Title:
RTL8822BE network driver rtl_wifi crashes on boot in Focal Fossa 20.04
- 5.4.0-21-generic and mainline 5.7.0-050700rc1-generic
Status in linux package in Ubuntu:
Confirmed
Bug description:
RTL8822BE crashes after rtw_pci starts on boot after kernel update to
5.4.0-21 (fails to read DBI register -- see attached dmesg). Issue is
still present on latest mainline kernel version
5.7.0-050700rc1-generic .
[ 10.627501] rtw_pci 0000:3a:00.0: start vif 5c:ea:1d:b6:17:11 on port 0
[ 10.714544] ------------[ cut here ]------------
[ 10.714545] failed to read DBI register, addr=0x0719
[ 10.714577] WARNING: CPU: 0 PID: 939 at
drivers/net/wireless/realtek/rtw88/pci.c:1156
rtw_dbi_read8.constprop.0+0xaa/0xc0 [rtwpci]
[ 10.714577] Modules linked in: (see attached dmesg)
[ 10.714614] CPU: 0 PID: 939 Comm: wpa_supplicant Not tainted
5.7.0-050700rc1-generic #202004122032
[ 10.714614] Hardware name: LENOVO 81CU/LNVNB161216, BIOS 7KCN22WW(V1.03)
01/23/2018
[ 10.714616] RIP: 0010:rtw_dbi_read8.constprop.0+0xaa/0xc0 [rtwpci]
[ 10.714617] Code: 03 00 00 48 8b 40 50 e8 24 c3 4b e0 5b 41 5c 41 88 45 00
31 c0 41 5d 5d c3 be 19 07 00 00 48 c7 c7 70 73 94 c0 e8 bb de 75 df <0f> 0b b8
fb ff ff ff 5b 41 5c 41 5d 5d c3 0f 1f 84 00 00 00 00 00
[ 10.714618] RSP: 0018:ffffb466007e7880 EFLAGS: 00010282
[ 10.714618] RAX: 0000000000000000 RBX: 0000000000000000 RCX:
0000000000000007
[ 10.714619] RDX: 0000000000000007 RSI: 0000000000000092 RDI:
ffff933cc9e19c80
[ 10.714619] RBP: ffffb466007e7898 R08: 00000000000003d2 R09:
0000000000000004
[ 10.714620] R10: 0000000000000000 R11: 0000000000000001 R12:
ffff933cbdf31ea0
[ 10.714620] R13: ffffb466007e78af R14: ffff933cbdf35bc8 R15:
0000000000000000
[ 10.714622] FS: 00007fbcedc6efc0(0000) GS:ffff933cc9e00000(0000)
knlGS:0000000000000000
[ 10.714622] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 10.714623] CR2: 0000563278766000 CR3: 00000002be7a4002 CR4:
00000000003606f0
[ 10.714623] Call Trace:
[ 10.714627] rtw_pci_link_ps+0x4e/0x90 [rtwpci]
[ 10.714630] ? _raw_spin_unlock_bh+0x1e/0x20
[ 10.714637] rtw_leave_ips+0x1f/0x80 [rtw88]
[ 10.714640] rtw_ops_config+0xa3/0xe0 [rtw88]
[ 10.714658] ieee80211_hw_config+0x95/0x390 [mac80211]
[ 10.714669] ieee80211_recalc_idle+0x27/0x30 [mac80211]
[ 10.714679] __ieee80211_start_scan+0x334/0x750 [mac80211]
[ 10.714688] ieee80211_request_scan+0x30/0x50 [mac80211]
[ 10.714699] ieee80211_scan+0x5c/0xa0 [mac80211]
[ 10.714719] nl80211_trigger_scan+0x59a/0x6c0 [cfg80211]
[ 10.714722] genl_rcv_msg+0x1a8/0x470
[ 10.714724] ? ep_poll_callback+0x2a0/0x2c0
[ 10.714725] ? genl_family_rcv_msg_attrs_parse+0x100/0x100
[ 10.714726] netlink_rcv_skb+0x50/0x120
[ 10.714728] genl_rcv+0x29/0x40
[ 10.714729] netlink_unicast+0x1a8/0x250
[ 10.714730] netlink_sendmsg+0x233/0x460
[ 10.714739] ? _copy_from_user+0x31/0x60
[ 10.714750] sock_sendmsg+0x65/0x70
[ 10.714751] ____sys_sendmsg+0x212/0x280
[ 10.714752] ? copy_msghdr_from_user+0x5c/0x90
[ 10.714755] ? __check_object_size+0x4d/0x150
[ 10.714756] ___sys_sendmsg+0x81/0xc0
[ 10.714757] ? __check_object_size+0x4d/0x150
[ 10.714759] ? unix_ioctl+0x99/0x180
[ 10.714760] ? sock_getsockopt+0x198/0xc04
[ 10.714761] ? sock_do_ioctl+0x47/0x140
[ 10.714763] ? __cgroup_bpf_run_filter_setsockopt+0xae/0x2c0
[ 10.714765] ? _cond_resched+0x19/0x30
[ 10.714767] ? aa_sk_perm+0x43/0x1b0
[ 10.714768] __sys_sendmsg+0x5c/0xa0
[ 10.714770] __x64_sys_sendmsg+0x1f/0x30
[ 10.714772] do_syscall_64+0x57/0x1b0
[ 10.714773] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 10.714774] RIP: 0033:0x7fbcedffb5b7
[ 10.714775] Code: 64 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00
f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00
f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
[ 10.714776] RSP: 002b:00007fff88e22288 EFLAGS: 00000246 ORIG_RAX:
000000000000002e
[ 10.714777] RAX: ffffffffffffffda RBX: 00005632787355d0 RCX:
00007fbcedffb5b7
[ 10.714777] RDX: 0000000000000000 RSI: 00007fff88e222c0 RDI:
0000000000000006
[ 10.714778] RBP: 0000563278761380 R08: 0000000000000004 R09:
0000563278761380
[ 10.714778] R10: 00007fff88e22394 R11: 0000000000000246 R12:
00005632787354e0
[ 10.714779] R13: 00007fff88e222c0 R14: 00007fff88e22394 R15:
0000563278766710
[ 10.714780] ---[ end trace f00c16109236af6f ]---
[ 10.714782] rtw_pci 0000:3a:00.0: failed to read ASPM, ret=-5
Device is unable to scan for networks and error occurs when attempting to
turn on/off wifi in settings:
[ 302.451636] rtw_pci 0000:3a:00.0: stop vif 5c:ea:1d:b6:17:11 on port 0
[ 308.820551] rtw_pci 0000:3a:00.0: mac power on failed
[ 308.820554] rtw_pci 0000:3a:00.0: failed to power on mac
However, issue is NOT present for me on kernel version 5.4.0-18-generic (but
is present on 5.4.0-21-generic and 5.7.0- as mentioned above). Changing kernel
versions with grub has been a temporary solution.
Relevant log files are attached from tests in both kernel versions
mentioned above (5.4.0-21 and 5.7.0-). Additional log files can be
added upon request, as I am able to repeat this simply by changing
kernel versions in grub.
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