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 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
