Hi Christian, * Christian Menard <[email protected]> [2014-12-02 21:07:48 +0300]: > Thank you for the explanation. I traced down two such allocs and changed the > flag accordingly. Now the log is error free (besides the "slab too > large" messages mentioned before). However, as it appears the driver is not > working. I get the message "iwl driver loaded" but then nothing happens > anymore. I guess there should be more output for searching the network, > establishing connection etc?
Well, it is somewhat unfortunate that even if the driver fails to load properly there is still “iwl driver loaded” printed… > > I tried to track down the problem, but so far I only found that > wpa_supplicant > blocks on it's socket in netlink_init(). The _handle() function which would > unblock wpa_supplicant is never called. Oddly, this part seems to work fine > without my changes to the DMA memory allocations. Do you have any ideas what > might be wrong? My guess is that the wifi_drv_ep is currently blocked or rather there is a deadlock somewhere involving the task scheduling. A signal is send if the the socket_call interface is used and if the signal is not handled by the entrypoint wpa_supplicant will hang indefinitely as you have already observed. It is probably worth a shot to look at the task scheduling by setting DEBUG_SCHEDULE to 1 in lx.h. You can also edit Scheduler::schedule() directly and add a print statement on line 175. Since the scheduling of tasks is done periodicly you should see some output in a good case scenario. If not, the wifi_drv_ep is not running properly which is the case if some task blocks w/o invoking the scheduling of another task. It might work fine w/o your DMA changes because w/o them another code path in the driver code is taken because the DMA operations failed early. Regards Josef ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk _______________________________________________ genode-main mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/genode-main
