Bug 97881 - hybrid wl driver causes system freeze
Summary: hybrid wl driver causes system freeze
Status: CLOSED INVALID
Alias: None
Product: Drivers
Classification: Unclassified
Component: network-wireless (show other bugs)
Hardware: x86-64 Linux
: P1 high
Assignee: drivers_network-wireless@kernel-bugs.osdl.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-05-07 13:47 UTC by Chris Zimmermann
Modified: 2015-05-07 13:56 UTC (History)
2 users (show)

See Also:
Kernel Version: 3.18.x and later
Subsystem:
Regression: No
Bisected commit-id:

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Description Chris Zimmermann 2015-05-07 13:47:59 UTC 
wl.ko (part of the Broadcom hybrid driver for BCM 4331 and friends) causes system lockup after loading LKM.

Steps to reproduce:

- Build module in 3.17.8 with dkms, 
- Reboot into kernel version 3.18 or later (to eliminate any other potential root cause for lockup),
- Install with dkms and insert into running kernel via modprobe,
- Systems locks up. No syslog / journald entries are generated.

Kernels tested: 3.18.12, 3.19.0-15/16, 4.0.1. Last kernel version known to work: 3.17.8.

Setting this to "high" as the only available alternative b43 has issues with certain router software (cf. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236937) and only caters for b/g and not a/n.

Let me know if you need more details.
Comment 1 John W. Linville 2015-05-07 13:56:06 UTC 
Please contact Broadcom for support on their out of tree driver.
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