On 09/25/2014 09:54 AM, Pink wrote: > Hi, > > actually if have the following problem, if have a lot of debug messages using printk inside the mac layer but if there is a > critical bug in the source code of the mac80211 module > the system goes into kernel panic state during execution. Unfortunately so far i now, it isn't possible > after a system restart to identify the rough position of the bug looking for the debug msg's written before the bug has occured in > dmesg or syslog because the messages were not saved in follow of the crash. > > Now i thought user mode linux (uml) is maybe a potential solution to identify the bug, if the kernel running the mac layer > is executed as virtual machine in uml. But i didn't found any kind of description how to forward the physical wireless card except using TAP/TUN device to the > vm so > that the kernel inside the vm can run its mac layer directly on the card. > > Now my question what tools are you use for the development and testing of the ath wireless driver > as well as the complete wireless stack including mac80211. Is it user mode linux or something else? > If user mode linux is used, is there any howto available to forward the atheros card to the vm. Have you tried using a serial-console? That is usually adequate for getting crash dumps and resolving most issues. Thanks, Ben -- Ben Greear <greearb@xxxxxxxxxxxxxxx> Candela Technologies Inc http://www.candelatech.com -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
