Re: Call for Test and Review: bwn(4) - another Broadcom Wireless driver

Alex Keda пишет:
> Weongyo Jeong пишет:
>> It's caused by unexpected SSB core.  Could you please test with attached
>> patch with email and tell me the result?
> All OK
> 
> ssb0: <Broadcom BCM4312 802.11a/b/g Wireless> mem 0xc8000000-0xc8003fff
> irq 18 at device 0.0 on pci48
> ssb0: unsupportted coreid 0x817
> info: [drm] Num pipes: 1
> bwn0 on ssb0
> bwn0: WLAN (chipid 0x4311 rev 13) PHY (analog 4 type 2 rev 9) RADIO
> (manuf 0x17f ver 0x2050 rev 2)
> bwn0: DMA (64 bits)
> bwn0: [FILTER]
> 
> scan - works.
> HP# ifconfig wlan0 scan
> SSID/MESH ID    BSSID              CHAN RATE   S:N     INT CAPS
> 0x000000000     00:19:e1:00:e1:d0    1   54M -79:-95  100 ES   WME
> Beeline_WiFi    00:19:e1:00:e1:d1    1   54M -79:-95  100 ES   WME
> Beeline_WiF...  00:19:e1:00:e1:d2    1   54M -79:-95  100 EPS  RSN WPA WME
> HP#
> 
> but, I can test it with access point only through two days
so, it's work, but I have reproduce panic.

I manually assign IP address:
# ifconfig wlan0 192.168.250.2
then, run command:
# /etc/netstart
and I see:
.....
wpa_supplicant[2084]: Failed to disable WPA in the driver
bwn0: bwn_newstate: RUN -> INIT
bwn0: TODO: bwn_leds_exit
bwn0: bwn_bt_disable TODO
Starting wpa_supplicant.
bwn0: firmware version ( rev 410 patch 2160 date 0x751a time 0x7c0a)
Kernel page fault with the following non-sleepable lock held:
exclusive sleep mutex bwn0 (network driver) r = 0 (0xffffff005a769010) 
locked _at_/usr/src/sys/modules/bwn/../../dev/bwn/if_bwn.c:906
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
_witness_sebugger() at _witness_debugger+0x2e
witness_warn() at witness_warn+0x2c2
trap() at trap+0x2ce
calltrap() at calltrap+0x8
--- trap 0xc, rip = 0xffffffff81516070, rsp = 0xffffff803ceeaa40, rbp = 
0xffffff803ceeaa80 ---
bwn_dma_setup() at bwn_dma_setup+0x10
bwn_dma_init() at bwn_dma_init+0x32
bwn_core_init() at bwn_core_init+0x40f
bwn_init_locked() at bwn_init_locked+0xae
bwn_ioctl() at bwn_ioctl+0xff
taskqueue_run() at taskqueue_run+0x91
taskqueue_thread_loop() at taskqueue_thread_loop+0x3f
fork_exit() at fork_exit+0x12a
fork_tramponline() at fork_tramponline+0xe
--- trap 0, rip = 0, rsp = 0xffffff803ceead30, rbp = 0 ---

Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address   = 0x0
fault code              = supervisor read data, page not present
instruction pointer     = 0x20:0xffffffff81516070
stack pointer           = 0x28:0xffffff803ceeaa40
frame pointer           = 0x28:0xffffff803ceeaa80
code segment            = base 0x0, limit 0xfffff, type 0x1b
                         = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 0 (bwn0 taskq)
[thread pid 0 tid 100239 ]
Stopped at bwn_dma_setup+0x10: movq (%rax), %rax