Apparently the same bug is in the open-source driver. As I said in my previous e-mail I'm experiencing same problem with all possible drivers for my wifi card.
Regards, Łukasz Słaboń On Mon, Jan 28, 2019 at 8:32 AM Greg KH <gre...@linuxfoundation.org> wrote: > On Sun, Jan 27, 2019 at 09:14:37PM +0100, Łukasz Słaboń wrote: > > Hello everyone, > > > > Since starting using linux last year (xubuntu 18.04) I am experiencing > > occasional problems with wifi interface (broadcom BCM43224 rev 01 > > 14e4:4353). From time to time (every 3 - 4 starts) my wifi card is not > > recognized and I do not see wifi interface after boot. After comparing > > dmesg listings from successful and failed boots I have discovered one > > difference. My main partition is mounted twice and in successful boot it > is > > done before before cfg80211 module. In failed boot second mount is done > > after cfg80211 module. Can this be a cause of network interface problems? > > If yes is there any possibility to solve this within systemd? Just to > > clarify such situations happen with proprietary and open-source drivers > as > > well. > > > > Here is the fragment of dmesg listing after successful boot: > > [ 4.452703] [drm] Initialized radeon 2.50.0 20080528 for 0000:02:00.0 > on > > minor 0 > > [ 4.601495] EXT4-fs (sda5): mounted filesystem with ordered data mode. > > Opts: (null) > > [ 4.669690] clocksource: Switched to clocksource tsc > > [ 5.068753] input: SynPS/2 Synaptics TouchPad as > > /devices/platform/i8042/serio1/input/input5 > > [ 5.774502] random: crng init done > > [ 5.774503] random: 7 urandom warning(s) missed due to ratelimiting > > [ 6.151902] ip_tables: (C) 2000-2006 Netfilter Core Team > > [ 9.336683] lp: driver loaded but no devices found > > [ 9.366325] ppdev: user-space parallel port driver > > [ 9.405084] EXT4-fs (sda5): re-mounted. Opts: errors=remount-ro > > [ 12.325130] Adding 2097148k swap on /swapfile. Priority:-2 extents:6 > > across:2260988k FS > > [ 20.381638] cfg80211: Loading compiled-in X.509 certificates for > > regulatory database > > [ 20.385106] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' > > [ 20.863926] wl: loading out-of-tree module taints kernel. > > [ 20.863932] wl: module license 'MIXED/Proprietary' taints kernel. > > [ 20.863932] Disabling lock debugging due to kernel taint > > [ 20.866504] wl: module verification failed: signature and/or required > > key missing - tainting kernel > > [ 20.941673] wlan0: Broadcom BCM4353 802.11 Hybrid Wireless Controller > > 6.30.223.271 (r587334) > > > > Here is the fragment of dmesg listing after failed boot: > > [ 5.194759] EXT4-fs (sda5): mounted filesystem with ordered data mode. > > Opts: (null) > > [ 6.249451] random: crng init done > > [ 6.249454] random: 7 urandom warning(s) missed due to ratelimiting > > [ 6.728424] ip_tables: (C) 2000-2006 Netfilter Core Team > > [ 9.888353] lp: driver loaded but no devices found > > [ 9.913126] ppdev: user-space parallel port driver > > [ 10.152833] cfg80211: Loading compiled-in X.509 certificates for > > regulatory database > > [ 10.156199] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' > > [ 10.174030] EXT4-fs (sda5): re-mounted. Opts: errors=remount-ro > > [ 21.275568] Adding 2097148k swap on /swapfile. Priority:-2 extents:6 > > across:2260988k FS > > [ 21.472260] wl: loading out-of-tree module taints kernel. > > [ 21.472264] wl: module license 'MIXED/Proprietary' taints kernel. > > [ 21.472265] Disabling lock debugging due to kernel taint > > [ 21.474938] wl: module verification failed: signature and/or required > > key missing - tainting kernel > > [ 21.477657] wl 0000:08:00.0: enabling device (0000 -> 0002) > > [ 21.477881] wl driver 6.30.223.271 (r587334) failed with code 1 > > [ 21.477882] ERROR @wl_cfg80211_detach : > > [ 21.477883] NULL ndev->ieee80211ptr, unable to deref wl > > Looks like a bug in the closed-source wl kernel driver. Please contact > the authors of that code and ask them for help as there's really nothing > we can do about this. > > sorry, > > greg k-h >
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