On 03/03/11 06:42 AM, Hans Petter Selasky wrote: > On Thursday 03 March 2011 12:26:20 Etienne Robillard wrote: > >> On 03/03/11 02:45 AM, Hans Petter Selasky wrote: >> >>>>>> I forwarded this thread on -current. >>>>>> >>>>>> Please also find below a stack trace produced with option >>>>>> KDB_UNATTENDED for the rt28700 driver (if_rt28700). >>>>>> >>>>>> On another side note, I have not being able to load >>>>>> the runfw firmware module anymore after having updated >>>>>> the src tree for 8.2-STABLE ? >>>>>> >>>>>> $ sudo kldload /boot/kernel/runfw.ko >>>>>> kldload: can't load /boot/kernel/runfw.ko: Exec format error >>>>>> >>>>> Here is your real error in dmesg: >>>>> >>>>>> KLD runfw.ko: depends on firmware - not available or version mismatch >>>>>> linker_load_file: Unsupported file type >>>>>> >>>>> You need to kldload firmware.ko or make sure 'device firmware' is in >>>>> your kernel config. >>>>> >>>> Hi, >>>> >>>> Many thanks. This explains the change of behavior attempting to kldload >>>> runfw.ko >>>> without the firmware assist module. :) >>>> >>>> However I find strange that run(4) requires such a firmware to be >>>> preloaded when the rt2870 driver doesn't require it! >>>> >>>> Cheers, >>>> >>> Maybe that's due to a missing MODULE_DEPEND() line in the .c file of >>> urtw0. >>> >>> --HPS >>> >> Hi, >> >> Thanks for the input. I realize the urtw(4) and the pseudo rt2870 drivers >> may be missing a MODULE_DEPEND macro but this issue is not as annoying >> than the repeated page faults happening when the card is trying >> to reassociate itself with a router. >> > Hi, > > Could you re-point me at one of those page faults, like DDB backtrace? > > You are using 9-current? > > --HPS > > Hi, Thanks for the feedback. It seems to affect unconditionally at least run(4) and rt2870 which isn't in the src tree yet. I copy-paste below a full dmesg output showing the requested backtrace. Also on Linux, its possible to force modules using a external firmware to not being built as a module. Would it be possible to add a similar option to /etc/src.conf to prevent building modules requiring a external firmware such as run(4) when building the kernel ? Waiting on "WCTRL" with the following non-sleepable locks held: exclusive sleep mutex rt28700_com_loc (rt28700_com_loc) r = 0 (0xffffff8001466018) locked _at_ net80211/ieee80211_node.c:653 KDB: stack backtrace: #0 0xffffffff804e0da0 at kdb_backtrace+0x60 #1 0xffffffff804effec at _witness_debugger+0x2c #2 0xffffffff804f1672 at witness_warn+0x322 #3 0xffffffff8047a85d at _cv_wait+0x6d #4 0xffffffff80400e73 at usbd_do_request_flags+0x4f3 #5 0xffffffff8102e0cb at rt2870_io_vendor_req+0x9b #6 0xffffffff8102e232 at rt2870_io_mac_write_multi+0x52 #7 0xffffffff8102e2ac at rt2870_io_mac_write+0x1c #8 0xffffffff81032f2d at rt2870_newassoc+0x12d #9 0xffffffff805893d2 at sta_newstate+0x5a2 #10 0xffffffff81039a7d at rt2870_vap_newstate+0x4d #11 0xffffffff805817a1 at ieee80211_newstate_cb+0x161 #12 0xffffffff804eb6b7 at taskqueue_run_locked+0xb7 #13 0xffffffff804eb7a0 at taskqueue_thread_loop+0x50 #14 0xffffffff804906d5 at fork_exit+0x115 #15 0xffffffff8064bc4e at fork_trampoline+0xe Regards, -- Etienne Robillard Company: Green Tea Hackers Club Occupation: Software Developer (and CEO) E-mail: erob_at_gthcfoundation.org Work phone: 450-936-2123 Website (Company): https://gthc.org/ Website (Blog): https://gthc.org/blog/ PGP public key fingerprint: F2A9 32EA 8E7C 460F 1728 A1A7 649C 7F17 A086 DDEC During times of universal deceit, telling the truth becomes a revolutionary act. -- George Orwell If a free society cannot help the many who are poor, it cannot save the few who are rich. -- John F. KennedyReceived on Thu Mar 03 2011 - 12:07:53 UTC
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