Comment 5 for bug 57355

I may have found at least a workaround. After posting my earlier comment, I found the Ndiswrapper FAQ (http://ndiswrapper.sourceforge.net/mediawiki/index.php/FAQ) which suggested disabling ACPI irq routing with the boot commandline parameter acpi=noirq. I did that and my wireless has now stayed up for over 2 hours!

I haven't see any ill effects, but I haven't looked hard either.

Here is my dmesg output with acpi=noirq:

[17179588.328000] ndiswrapper version 1.23 loaded (preempt=yes,smp=yes)
[17179588.396000] ndiswrapper: driver bcmwl5 (Broadcom,11/02/2005, 4.10.40.0) loaded
[17179588.396000] PCI: Assigned IRQ 3 for device 0000:0c:00.0
[17179588.396000] PCI: Sharing IRQ 3 with 0000:00:1f.2
[17179588.396000] PCI: Sharing IRQ 3 with 0000:00:1f.3
[17179588.396000] PCI: Setting latency timer of device 0000:0c:00.0 to 64
[17179588.404000] ndiswrapper: using irq 3
[17179589.056000] wlan0: vendor: ''
[17179589.056000] wlan0: ethernet device 00:16:ce:8e:c7:47 using NDIS driver bcmwl5, 14E4:4311.5.conf
[17179589.056000] wlan0: encryption modes supported: WEP; TKIP with WPA, WPA2, WPA2PSK; AES/CCMP with WPA, WPA2, WPA2PSK
[17179592.980000] NET: Registered protocol family 10
[17179592.980000] lo: Disabled Privacy Extensions
[17179592.980000] ADDRCONF(NETDEV_UP): eth0: link is not ready
[17179592.980000] IPv6 over IPv4 tunneling driver
[17179594.124000] ACPI: AC Adapter [AC] (on-line)
[17179594.148000] ACPI: Battery Slot [BAT0] (battery present)
[17179594.148000] ACPI: Battery Slot [BAT1] (battery absent)
[17179594.228000] ACPI: Lid Switch [LID]
[17179594.228000] ACPI: Power Button (CM) [PBTN]
[17179594.228000] ACPI: Sleep Button (CM) [SBTN]
[17179594.324000] ibm_acpi: ec object not found
[17179594.356000] pcc_acpi: loading...
[17179594.448000] ACPI: Video Device [VID] (multi-head: yes rom: no post: no)
[17179594.448000] ACPI: Video Device [VID] (multi-head: yes rom: no post: no)
[17179594.448000] ACPI: Video Device [VID2] (multi-head: yes rom: no post: no)
[17179600.400000] ppdev: user-space parallel port driver
[17179600.892000] apm: BIOS not found.
[17179604.760000] wlan0: no IPv6 routers present
[17179605.144000] Bluetooth: Core ver 2.8
[17179605.144000] NET: Registered protocol family 31
[17179605.144000] Bluetooth: HCI device and connection manager initialized
[17179605.144000] Bluetooth: HCI socket layer initialized
[17179605.196000] Bluetooth: L2CAP ver 2.8
[17179605.196000] Bluetooth: L2CAP socket layer initialized
[17179605.216000] Bluetooth: RFCOMM socket layer initialized
[17179605.216000] Bluetooth: RFCOMM TTY layer initialized
[17179605.216000] Bluetooth: RFCOMM ver 1.7
[17180802.816000] spurious 8259A interrupt: IRQ7.
j
Note the last line, which occurred a while after boot--the same time when I was losing wireless connectivity before.