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Message-ID: <CA+LKeY6xca=f-qFJoVFaqywRpfHPmMAWDrMmbkUiDf9atA_jVQ@mail.gmail.com> Date: Wed, 12 Nov 2014 21:03:42 -0200 From: Murilo Opsfelder Araújo <mopsfelder@...il.com> To: Larry Finger <Larry.Finger@...inger.net> Cc: Mike Galbraith <umgwanakikbuti@...il.com>, linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org, netdev@...r.kernel.org, Chaoming Li <chaoming_li@...lsil.com.cn>, "John W. Linville" <linville@...driver.com>, Thadeu Cascardo <cascardo@...cardo.eti.br>, 谭杭波 <troy_tan@...lsil.com.cn> Subject: Re: [PATCH] rtlwifi: Add more checks for get_btc_status callback On Thu, Nov 6, 2014 at 9:30 PM, Larry Finger <Larry.Finger@...inger.net> wrote: > On 11/06/2014 04:52 PM, Murilo Opsfelder Araujo wrote: >> >> On 11/06/2014 09:40 AM, Murilo Opsfelder Araujo wrote: >>> >>> On 11/05/2014 04:12 PM, Larry Finger wrote: >>>> >>>> On 11/05/2014 03:16 AM, Mike Galbraith wrote: >>>>> >>>>> On Wed, 2014-10-29 at 23:30 -0500, Larry Finger wrote: >>>>>> >>>>>> On 10/29/2014 06:28 PM, Murilo Opsfelder Araujo wrote: >>>>>>> >>>>>>> This is a complement of commit >>>>>>> 08054200117a95afc14c3d2ed3a38bf4e345bf78 >>>>>>> "rtlwifi: Add check for get_btc_status callback". >>>>>>> >>>>>>> With this patch, next-20141029 at least does not panic with rtl8192se >>>>>>> device. >>>>>>> >>>>>> >>>>>> This patch is OK, but as noted it is not complete. >>>>>> >>>>>> I have patches to fix all the kernel panics for rtl8192se AND >>>>>> rtl8192ce. There >>>>>> are missing parts, but I would prefer submitting mine, which would >>>>>> conflict with >>>>>> this one. For that reason, NACK for this one, and please apply the >>>>>> set I am >>>>>> submitting now. >>>>> >>>>> >>>>> It's all in there now, but my RTL8191SEvB is still dead. Squabbling >>>>> with it isn't going all that well either. >>>>> >>>>> As soon as 38506ece rtlwifi: rtl_pci: Start modification for new >>>>> drivers >>>>> is applied, explosions appear. Subsequently applying... >>>>> >>>>> 08054200 rtlwifi: Add check for get_btc_status callback >>>>> c0386f15 rtlwifi: rtl8192ce: rtl8192de: rtl8192se: Fix handling for >>>>> missing get_btc_status >>>>> 50147969 rtlwifi: rtl8192se: Fix duplicate calls to >>>>> ieee80211_register_hw() >>>>> 30c5ccc6 rtlwifi: rtl8192se: Add missing section to read descriptor >>>>> setting >>>>> 75a916e1 rtlwifi: rtl8192se: Fix firmware loading >>>>> >>>>> ...fixes that mess up, but leaves the interface dead in the same manner >>>>> as if nothing has been reverted. So it _seems_ the bustage lurks in >>>>> 38506ece somewhere. Too bad it's non-dinky, and written in wifi-ese :) >>>> >>>> >>>> Yes, I am aware that rtl8192se is failing, and now that I am back from >>>> vacation, I am working on the problem. If you want to use the driver >>>> with kernel 3.18, clone the repo at >>>> http://github.com/lwfinger/rtlwifi_new.git and build and install either >>>> the master or kernel_version branches. Both work. >>>> >>>> I am in the process of trying to find what the crucial difference is >>>> between that repo and the kernel version. >>>> >>>> Larry >>>> >>>> >>> I'm sending to everyone so others can jump in as well. >>> >>> Here are the steps I've followed. >>> >>> Installed and booted my kernel: >>> >>> $ sudo dpkg -i >>> linux-image-3.18.0-rc3-next-20141105-panda_3.18.0-rc3-next-20141105-panda-1_amd64.deb >>> linux-headers-3.18.0-rc3-next-20141105-panda_3.18.0-rc3-next-20141105-panda-1_amd64.deb >>> >>> Built modules from Larry's github repository. >>> >>> $ cd rtlwifi_new >>> $ make >>> $ sudo make install >>> >>> $ sudo modprobe -rv rtl8192se >>> rmmod rtl8192se >>> rmmod rtl_pci >>> rmmod rtlwifi >>> rmmod mac80211 >>> rmmod cfg80211 >>> >>> The module does not load: >>> >>> $ sudo modprobe -v rtl8192se >>> insmod >>> /lib/modules/3.18.0-rc3-next-20141105-panda/kernel/net/wireless/cfg80211.ko >>> insmod >>> /lib/modules/3.18.0-rc3-next-20141105-panda/kernel/net/mac80211/mac80211.ko >>> insmod >>> /lib/modules/3.18.0-rc3-next-20141105-panda/kernel/drivers/net/wireless/rtlwifi/rtlwifi.ko >>> insmod >>> /lib/modules/3.18.0-rc3-next-20141105-panda/kernel/drivers/net/wireless/rtlwifi/rtl_pci.ko >>> insmod /lib/modules/3.18.0-rc3-next-20141105-panda/extra/rtl8192se.ko >>> ERROR: could not insert 'rtl8192se': Invalid argument >>> >>> And /var/log/messages showed: >>> >>> Nov 5 22:28:01 laptop kernel: [ 301.276806] rtl8192se: disagrees about >>> version of symbol rtl_process_phyinfo >>> Nov 5 22:28:01 laptop kernel: [ 301.276812] rtl8192se: Unknown symbol >>> rtl_process_phyinfo (err -22) >>> Nov 5 22:28:01 laptop kernel: [ 301.276864] rtl8192se: disagrees about >>> version of symbol rtl_get_tcb_desc >>> Nov 5 22:28:01 laptop kernel: [ 301.276866] rtl8192se: Unknown symbol >>> rtl_get_tcb_desc (err -22) >>> >> >> Here is what I did in order to get the rtl8192se from Larry's repo to >> work: >> >> $ cd rtlwifi_new >> $ make >> >> $ sudo modprobe -rv rtl8192se >> rmmod rtl8192se >> rmmod rtl_pci >> rmmod rtlwifi >> rmmod mac80211 >> rmmod cfg80211 >> >> $ sudo modprobe -v cfg80211 >> insmod >> /lib/modules/3.18.0-rc3-next-20141106-panda/kernel/net/wireless/cfg80211.ko >> >> $ sudo modprobe -v mac80211 >> insmod >> /lib/modules/3.18.0-rc3-next-20141106-panda/kernel/net/mac80211/mac80211.ko >> >> $ sudo insmod ./rtlwifi.ko >> $ sudo insmod ./rtl_pci.ko >> $ sudo insmod ./rtl8192se/rtl8192se.ko >> >> Cascardo helped me to investigate this and the issue was that modprobe >> was loading the core rtl drivers from the next-20141105 and the >> rtl8192se from Larry's repo. Thus, rtl8192se didn't have all its >> required symbols at loading time. >> >> Loading the drivers in reverse order using insmod did the trick. >> >> Larry, your rtl8192se from rtlwifi_new repository is working pretty >> fine on my hardware. I'm looking forward to see that code landing >> linux 3.18. > > > I am happy that it is working now; however, if you had done "sudo make > install", the new drivers would have been in the proper directories, and you > would not have gotten the incorrect symbol errors, or need to use the insmod > commands that you post. > > Larry > > Hello, Larry. I'd like to let you know that next-20141112 brought my rtl8192se device back to life. I didn't need to build rtlwifi_new to be able to connect to my wifi network. It worked just fine. Thank you all. -- Murilo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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