Dear list members,
I have an RTL8191SU 802.11n USB WLAN Adapter with rtl8192su driver.
Unfortunately, I have to turn it off and on sometimes to make it work. I use
NetworkManager with KDE 5 nm-applet in which I simply turn off the wireless
capability then on again.
Once I did this, I got a kernel BUG. Here is the link for the full text:
http://paste.opensuse.org/view/simple/25089935
Versions:
- Linux wireless kernel v4.1
- rtl8192su driver from https://github.com/chunkeey/rtl8192su [0f01e11226dcc]
Excerpt:
NetworkManager[1241]: <info> WiFi now enabled by radio killswitch
NetworkManager[1241]: <info> (wlp0s26f7u2) supports 4 scan SSIDs
NetworkManager[1241]: <info> (wlp0s26f7u2): supplicant interface state:
starting -> ready
NetworkManager[1241]: <info> (wlp0s26f7u2): device state change: unavailable -
> disconnected (reason 'supplicant-available') [20 30 42]
NetworkManager[1241]: <info> (wlp0s26f7u2): supplicant interface state: ready
-> disconnected
NetworkManager[1241]: <info> (wlp0s26f7u2) supports 4 scan SSIDs
kernel: rtl8192s_common:rtl92s_phy_chk_fwcmd_iodone():<0-0> Set FW Cmd fail!!
kernel: ------------[ cut here ]------------
kernel: WARNING: CPU: 3 PID: 1105 at
/home/aki/temp/rtl8192su/rtlwifi/rtl8192s/phy_common.c:1192
rtl92s_phy_chk_fwcmd_iodone+0x65/0xb0 [rtl8192s_common]()
kernel: Modules linked in: ctr ccm af_packet arc4 rtl8192su(O)
rtl8192s_common(O) rtl_usb(O) rtlwifi(O) mac80211 xt_pkttype cfg80211
ip6t_REJECT xt_tcpudp nf_conntrack_ipv6 nf_defrag
kernel: serio_raw i2c_i801 lpc_ich mfd_core r8169 mii i7core_edac edac_core
shpchp i5500_temp 8250_fintek tpm_infineon tpm_tis tpm acpi_cpufreq processor
dm_mod sr_mod cdrom hid_log
kernel: CPU: 3 PID: 1105 Comm: wpa_supplicant Tainted: P IO 4.1.0-
wl-1.g3ee3773-desktop #1
kernel: Hardware name: MSI MS-7522/MSI X58 Pro-E (MS-7522), BIOS V8.15
03/19/2011
kernel: ffffffffa05f8c70 ffff8800bab13908 ffffffff816d178e 0000000000000007
kernel: 0000000000000000 ffff8800bab13948 ffffffff8106b4fa ffff8800bab13968
kernel: 0000000000000000 ffff880195cf1440 0000000000000000 ffff880195cf06a0
kernel: Call Trace:
kernel: [<ffffffff816d178e>] dump_stack+0x4c/0x6e
kernel: [<ffffffff8106b4fa>] warn_slowpath_common+0x8a/0xc0
kernel: [<ffffffff8106b5ea>] warn_slowpath_null+0x1a/0x20
kernel: [<ffffffffa05ef875>] rtl92s_phy_chk_fwcmd_iodone+0x65/0xb0
[rtl8192s_common]
kernel: [<ffffffffa05f1c31>] _rtl92s_phy_set_fwcmd_io+0xe1/0x670
[rtl8192s_common]
kernel: [<ffffffffa05f2279>] rtl92s_phy_set_fw_cmd+0xb9/0x7b0 [rtl8192s_common]
kernel: [<ffffffffa05f29aa>] rtl92s_phy_scan_operation_backup+0x3a/0x90
[rtl8192s_common]
kernel: [<ffffffffa061b8d9>] rtl_op_sw_scan_start+0xa9/0x170 [rtlwifi]
kernel: [<ffffffffa053aece>] __ieee80211_start_scan+0x42e/0x720 [mac80211]
kernel: [<ffffffff811d1455>] ? __kmalloc_node_track_caller+0x35/0x40
kernel: [<ffffffffa053be20>] ieee80211_request_scan+0x30/0x50 [mac80211]
kernel: [<ffffffffa054d1d8>] ieee80211_scan+0x68/0xc0 [mac80211]
kernel: [<ffffffffa04c7e46>] nl80211_trigger_scan+0x626/0x6c0 [cfg80211]
kernel: [<ffffffff816046ea>] genl_family_rcv_msg+0x19a/0x390
kernel: [<ffffffff816048e0>] ? genl_family_rcv_msg+0x390/0x390
kernel: [<ffffffff81604959>] genl_rcv_msg+0x79/0xc0
kernel: [<ffffffff81603e29>] netlink_rcv_skb+0xb9/0xe0
kernel: [<ffffffff8160453c>] genl_rcv+0x2c/0x40
kernel: [<ffffffff81603598>] netlink_unicast+0x108/0x1a0
kernel: [<ffffffff81603b35>] netlink_sendmsg+0x505/0x620
kernel: [<ffffffff815b448d>] sock_sendmsg+0x3d/0x50
kernel: [<ffffffff815b50bb>] ___sys_sendmsg+0x2bb/0x2d0
kernel: [<ffffffff810100d2>] ? fpu_finit+0x22/0x40
kernel: [<ffffffff810102e1>] ? init_fpu+0x51/0xb0
kernel: [<ffffffff81011718>] ? __restore_xstate_sig+0x298/0x6c0
kernel: [<ffffffff810040ef>] ? do_signal+0xaf/0x130
kernel: [<ffffffff815b57e2>] __sys_sendmsg+0x42/0x80
kernel: [<ffffffff815b5832>] SyS_sendmsg+0x12/0x20
kernel: [<ffffffff816d7b32>] system_call_fastpath+0x16/0x75
kernel: ---[ end trace b0eab65ae6555186 ]---
Best regards,
?kos
On Tuesday, July 07, 2015 11:56:21 PM Szőts Ákos wrote:
> I have an RTL8191SU 802.11n USB WLAN Adapter with rtl8192su driver.
> Unfortunately, I have to turn it off and on sometimes to make it work. I use
> NetworkManager with KDE 5 nm-applet in which I simply turn off the wireless
> capability then on again.
>
> Once I did this, I got a kernel BUG. Here is the link for the full text:
> http://paste.opensuse.org/view/simple/25089935
This message lets you know that a firmware command has timed out.
A call trace is included to let you know what the driver was doing
at the time. If this problem bothers you, the information from the
trace should help to debug it and make a patch.
> kernel: rtl8192s_common:rtl92s_phy_chk_fwcmd_iodone():<0-0> Set FW Cmd fail!!
> kernel: ------------[ cut here ]------------
> kernel: WARNING: CPU: 3 PID: 1105 at
> /home/aki/temp/rtl8192su/rtlwifi/rtl8192s/phy_common.c:1192
> rtl92s_phy_chk_fwcmd_iodone+0x65/0xb0 [rtl8192s_common]()
> kernel: Modules linked in: rtl8192su(O) rtl8192s_common(O) rtl_usb(O) rtlwifi(O)...
> kernel: Call Trace:
> kernel: [<ffffffff816d178e>] dump_stack+0x4c/0x6e
> kernel: [<ffffffff8106b4fa>] warn_slowpath_common+0x8a/0xc0
> kernel: [<ffffffff8106b5ea>] warn_slowpath_null+0x1a/0x20
> kernel: [<ffffffffa05ef875>] rtl92s_phy_chk_fwcmd_iodone+0x65/0xb0
> [rtl8192s_common]
> kernel: [<ffffffffa05f1c31>] _rtl92s_phy_set_fwcmd_io+0xe1/0x670
> [rtl8192s_common]
> kernel: [<ffffffffa05f2279>] rtl92s_phy_set_fw_cmd+0xb9/0x7b0 [rtl8192s_common]
> kernel: [<ffffffffa05f29aa>] rtl92s_phy_scan_operation_backup+0x3a/0x90
> [rtl8192s_common]
> kernel: [<ffffffffa061b8d9>] rtl_op_sw_scan_start+0xa9/0x170 [rtlwifi]
Regards,
Christian
Christian Lamparter a következőt írta ekkor: 2015. július 9. 15:39:43
> On Tuesday, July 07, 2015 11:56:21 PM Szőts Ákos wrote:
> > I have an RTL8191SU 802.11n USB WLAN Adapter with rtl8192su driver.
> > Unfortunately, I have to turn it off and on sometimes to make it work. I
> > use NetworkManager with KDE 5 nm-applet in which I simply turn off the
> > wireless capability then on again.
> >
> > Once I did this, I got a kernel BUG. Here is the link for the full text:
> > http://paste.opensuse.org/view/simple/25089935
>
> This message lets you know that a firmware command has timed out.
> A call trace is included to let you know what the driver was doing
> at the time. If this problem bothers you, the information from the
> trace should help to debug it and make a patch.
Thank you for the hint. Doing some printk's, it was revealed that
rtl8191s/phy_common.c:_rtl92s_phy_set_fwcmd_io first tried to
FW_CMD_PAUSE_DM_BY_SCAN then to FW_CMD_RESUME_DM_BY_SCAN.
Turning the adapter off and on again fixed the issue, the networks appeared
again, but I don't know why the scan timed out. Unfortunately, I don't know
anything about the firmwares of the wireless drivers, so I can't trace it
further and create a patch.
>
> > kernel: rtl8192s_common:rtl92s_phy_chk_fwcmd_iodone():<0-0> Set FW Cmd
> > fail!! kernel: ------------[ cut here ]------------
> > kernel: WARNING: CPU: 3 PID: 1105 at
> > /home/aki/temp/rtl8192su/rtlwifi/rtl8192s/phy_common.c:1192
> > rtl92s_phy_chk_fwcmd_iodone+0x65/0xb0 [rtl8192s_common]()
> > kernel: Modules linked in: rtl8192su(O) rtl8192s_common(O) rtl_usb(O)
> > rtlwifi(O)... kernel: Call Trace:
> > kernel: [<ffffffff816d178e>] dump_stack+0x4c/0x6e
> > kernel: [<ffffffff8106b4fa>] warn_slowpath_common+0x8a/0xc0
> > kernel: [<ffffffff8106b5ea>] warn_slowpath_null+0x1a/0x20
> > kernel: [<ffffffffa05ef875>] rtl92s_phy_chk_fwcmd_iodone+0x65/0xb0
> > [rtl8192s_common]
> > kernel: [<ffffffffa05f1c31>] _rtl92s_phy_set_fwcmd_io+0xe1/0x670
> > [rtl8192s_common]
> > kernel: [<ffffffffa05f2279>] rtl92s_phy_set_fw_cmd+0xb9/0x7b0
> > [rtl8192s_common] kernel: [<ffffffffa05f29aa>]
> > rtl92s_phy_scan_operation_backup+0x3a/0x90 [rtl8192s_common]
> > kernel: [<ffffffffa061b8d9>] rtl_op_sw_scan_start+0xa9/0x170 [rtlwifi]
>
> Regards,
> Christian