@Nico: If I get some positive feedback, I'll consider it.
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https://bugs.launchpad.net/bugs/1387199
Title:
14e4:4331 [MacBookPro8,1] broadcom-sta kernel crashes
Status in bcmwl package in Ubuntu:
Triaged
Bug description:
1) lsb_release -rd
Description: Ubuntu 14.10
Release: 14.10
2) apt-cache policy bcmwl-kernel-source
bcmwl-kernel-source:
Installed: 6.30.223.248+bdcom-0ubuntu1
Candidate: 6.30.223.248+bdcom-0ubuntu1
Package pin: (not found)
Version table:
*** 6.30.223.248+bdcom-0ubuntu1 1001
500 http://ubuntu.mirror.tudos.de/ubuntu/ utopic/restricted amd64
Packages
100 /var/lib/dpkg/status
3) What is expected to happen in is that the wl does not crash.
4) What happens insted in Saucy, Trusty, and now Utopic, about once per hour,
the `wl` kernel module of `bcmwl-kernel-source` crashes. `/var/log/syslog`
contains:
Oct 29 15:10:19 fuji kernel: [73721.579735] 0000000000000009
ffff880262bdbdd0 ffffffff8277fcbc 0000000000000000
Oct 29 15:10:19 fuji kernel: [73721.579738] ffff880262bdbe08
ffffffff8206fd8d ffff880260aa5000 ffff8801367e0840
Oct 29 15:10:19 fuji kernel: [73721.579742] 00000000000000a2
ffff8801facf9d80 ffff880261f28a78 ffff880262bdbe18
Oct 29 15:10:19 fuji kernel: [73721.579745] Call Trace:
Oct 29 15:10:19 fuji kernel: [73721.579755] [<ffffffff8277fcbc>]
dump_stack+0x45/0x56
Oct 29 15:10:19 fuji kernel: [73721.579760] [<ffffffff8206fd8d>]
warn_slowpath_common+0x7d/0xa0
Oct 29 15:10:19 fuji kernel: [73721.579764] [<ffffffff8206fe6a>]
warn_slowpath_null+0x1a/0x20
Oct 29 15:10:19 fuji kernel: [73721.579780] [<ffffffffc030b981>]
cfg80211_roamed+0x91/0xa0 [cfg80211]
Oct 29 15:10:19 fuji kernel: [73721.579828] [<ffffffffc06958cb>]
wl_notify_roaming_status+0xcb/0x150 [wl]
Oct 29 15:10:19 fuji kernel: [73721.579870] [<ffffffffc0692602>]
wl_event_handler+0x62/0x260 [wl]
Oct 29 15:10:19 fuji kernel: [73721.579911] [<ffffffffc06925a0>] ?
wl_free_wdev.isra.23+0x80/0x80 [wl]
Oct 29 15:10:19 fuji kernel: [73721.579915] [<ffffffff82094aeb>]
kthread+0xdb/0x100
Oct 29 15:10:19 fuji kernel: [73721.579920] [<ffffffff82094a10>] ?
kthread_create_on_node+0x1c0/0x1c0
Oct 29 15:10:19 fuji kernel: [73721.579924] [<ffffffff82787c3c>]
ret_from_fork+0x7c/0xb0
Oct 29 15:10:19 fuji kernel: [73721.579928] [<ffffffff82094a10>] ?
kthread_create_on_node+0x1c0/0x1c0
Oct 29 15:10:19 fuji kernel: [73721.579930] ---[ end trace f2631d4af0f9ba2d
]---
lspci -vvnn | grep -A 11 Network
03:00.0 Network controller [0280]: Broadcom Corporation BCM4331 802.11a/b/g/n
[14e4:4331] (rev 02)
Subsystem: Apple Inc. AirPort Extreme [106b:00d6]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 256 bytes
Interrupt: pin A routed to IRQ 17
Region 0: Memory at a0600000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: wl
04:00.0 FireWire (IEEE 1394) [0c00]: LSI Corporation FW643 [TrueFire] PCIe
1394b Controller [11c1:5901] (rev 08) (prog-if 10 [OHCI])
Subsystem: LSI Corporation FW643 [TrueFire] PCIe 1394b Controller [11c1:5900]
uname -a
Linux fuji 3.16.0-23-generic #31-Ubuntu SMP Tue Oct 21 17:56:17 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
sudo dmidecode -s bios-version
MBP81.88Z.0047.B27.1201241646
sudo dmidecode -s bios-release-date
01/24/12
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