Michael Krufky wrote: > On Fri, Sep 12, 2008 at 2:24 PM, Patrick Boisvenue <patrbois@xxxxxxxx> wrote: >> Andy Walls wrote: >>> On Wed, 2008-09-10 at 20:37 -0400, Patrick Boisvenue wrote: >>>> Andy Walls wrote: >>>>> On Tue, 2008-09-09 at 22:37 -0400, Steven Toth wrote: >>>>>> Patrick Boisvenue wrote: >>>>>>> Steven Toth wrote: >>>>>>>> Patrick Boisvenue wrote: >>>>>>> When launching dvbscan I get the following in dmesg: >>>>>>> >>>>>>> xc5000: waiting for firmware upload (dvb-fe-xc5000-1.1.fw)... >>>>>>> firmware: requesting dvb-fe-xc5000-1.1.fw >>>>>>> kobject_add_internal failed for i2c-2 with -EEXIST, don't try to >>>>>>> register things with the same name in the same directory. >>>>>>> Pid: 8059, comm: kdvb-fe-0 Tainted: P 2.6.26-gentoo #11 >>>>>>> >>>>>>> Call Trace: >>>>>>> [<ffffffff8036abb5>] kobject_add_internal+0x13f/0x17e >>>>>>> [<ffffffff8036aff2>] kobject_add+0x74/0x7c >>>>>>> [<ffffffff80230b02>] printk+0x4e/0x56 >>>>>>> [<ffffffff803eb84a>] device_add+0x9b/0x483 >>>>>>> [<ffffffff8036a876>] kobject_init+0x41/0x69 >>>>>>> [<ffffffff803f059d>] _request_firmware+0x169/0x324 >>>>>>> [<ffffffffa00e9a7e>] :xc5000:xc_load_fw_and_init_tuner+0x64/0x293 >>>>>>> [<ffffffff804a7222>] i2c_transfer+0x75/0x7f >>>>>>> [<ffffffffa00e53ad>] :s5h1409:s5h1409_writereg+0x51/0x83 >>>>>>> [<ffffffffa00e9cea>] :xc5000:xc5000_init+0x3d/0x6f >>>>>>> [<ffffffffa0091b0c>] :dvb_core:dvb_frontend_init+0x49/0x63 >>>>>>> [<ffffffffa0092e2c>] :dvb_core:dvb_frontend_thread+0x78/0x2f0 >>>>>>> [<ffffffffa0092db4>] :dvb_core:dvb_frontend_thread+0x0/0x2f0 >>>>>>> [<ffffffff80240eaf>] kthread+0x47/0x74 >>>>>>> [<ffffffff8022bc41>] schedule_tail+0x27/0x5b >>>>>>> [<ffffffff8020be18>] child_rip+0xa/0x12 >>>>>>> [<ffffffff80240e68>] kthread+0x0/0x74 >>>>>>> [<ffffffff8020be0e>] child_rip+0x0/0x12 >>>>>>> >>>>>>> fw_register_device: device_register failed >>>>>>> xc5000: Upload failed. (file not found?) >>>>>>> xc5000: Unable to initialise tuner >>>>>>> >>>>>>> >>>>>>> I have the firmware file located here: >>>>>>> >>>>>>> # ls -l /lib/firmware/dvb-fe-xc5000-1.1.fw >>>>>>> -rw-r--r-- 1 root root 12332 Aug 31 12:56 >>>>>>> /lib/firmware/dvb-fe-xc5000-1.1.fw >>>>>>> >>>>>>> If there is anything else I can provide (or try) to help debug, let me >>>>>>> know, >>>>>>> ...Patrick >>>>>> > kobject_add_internal failed for i2c-2 with -EEXIST, don't try to >>>>>> > register things with the same name in the same directory. >>>>>> >>>>>> Ooh, that's nasty problem, this is new - and looks like it's i2c related. >>>>>> >>>>>> Why does this sound familiar? Anyone? >>>>> A cx18 user had a similar problem on one distro. I remeber running it >>>>> down to a race condition in creating device nodes in one of the >>>>> "virtual" filesystems (/proc or /sys) the device was looking for a >>>>> paretn PCI device entry to hook onto, but it wasn't created at the time >>>>> so it tries to create it itself. In the meantime some other part of the >>>>> kernel subsystem did actually finish creating the entry - so it exists >>>>> by the time the firmware load tries to make it. >>>>> >>>>> As far as I could tell, it should be non-fatal (not an Oops or panic), >>>>> but if the driver gives up on -EEXIST then things won't work obviously. >>>>> >>>>> I never resolved the problem for the user. I think some kernel change >>>>> outside of cx18 resolved it. That's all the details I have. >>>>> >>>>> Regards, >>>>> Andy >>>>> >>>> So what are my options? >>> Good question. I don't know. Working with kobjects is way out of my >>> knowledge base. >>> >>> I looked at the kernel code long enough to decide that without being >>> able to reproduce the problem myself, I won't be able to spot the root >>> cause. Part of the reason is that this problem is about looking for and >>> creating sysfs objects as it relates to driver probing and firmware >>> loading. I couldn't quite sort out what had to happen in series and >>> what the kernel could be executing in parallel. >>> >>> I think your best option would be to post to the LKML or wherever else >>> the sysfs and kobject experts hang out. >>> >>> Another option could be to modify the driver code that gives up when the >>> firmware operation returns an error code because a sysfs device node >>> already exists (-EEXIST). That's no big deal, and a driver should be >>> able to merrily go forward, if it can easily detect the condition. >>> >>> >> More observations before I go bother people LKML. This is the error >> with an older 2.6.25 kernel. The dmesg output is more interesting. >> >> >> xc5000: waiting for firmware upload (dvb-fe-xc5000-1.1.fw)... >> >> >> sysfs: duplicate filename 'i2c-1' can not be created >> >> > > Patrick, > > This particular issue may have been fixed by my recent xc5000 patches > that were merged into the master branch a few days ago... > > Try pulling the v4l-dvb master branch -- that might help. > > HTH, > > Mike No change. Same error. Just to confirm I'm up to date, this is an output of "hg heads" for what I pulled in. changeset: 8964:e5ca4534b543 tag: tip user: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> date: Tue Sep 09 08:29:56 2008 -0700 summary: s2255drv field count fix changeset: 8924:c793bb42e052 user: Steven Toth <stoth@xxxxxxxxxxx> date: Tue Sep 09 10:52:06 2008 -0400 summary: cx23885: Fix for HVR1500Q eeprom offset decoding ...Patrick > >> ------------[ cut here ]------------ >> >> >> WARNING: at fs/sysfs/dir.c:424 sysfs_add_one+0x3f/0x93() >> >> >> Modules linked in: wlan_wep xc5000 s5h1409 cx23885 compat_ioctl32 >> videodev v4l1_compat cx2341x wlan_scan_sta videobuf_dma_sg >> ath_rate_sample v4l2_common btcx_risc tveeprom ath_pci videobuf_dvb >> dvb_core wlan ath_hal(P) videobuf_core >> >> Pid: 7730, comm: kdvb-fe-0 Tainted: P 2.6.25-gentoo-r6 #2 >> >> >> >> Call Trace: >> [<ffffffff8023019d>] warn_on_slowpath+0x51/0x63 >> [<ffffffff80230ef4>] printk+0x4e/0x56 >> [<ffffffff8029143a>] find_inode+0x28/0x6d >> [<ffffffff802bea5c>] sysfs_ilookup_test+0x0/0xf >> [<ffffffff8029156e>] ifind+0x44/0x8d >> [<ffffffff802bec58>] sysfs_find_dirent+0x1b/0x2f >> [<ffffffff802becab>] sysfs_add_one+0x3f/0x93 >> [<ffffffff802bf1fe>] create_dir+0x4f/0x87 >> [<ffffffff802bf26b>] sysfs_create_dir+0x35/0x4a >> [<ffffffff80366f6a>] kobject_get+0x12/0x17 >> [<ffffffff8036708f>] kobject_add_internal+0xc3/0x17e >> [<ffffffff80367224>] kobject_add_varg+0x54/0x61 >> [<ffffffff802296d6>] __wake_up+0x38/0x4f >> [<ffffffff80367581>] kobject_add+0x74/0x7c >> [<ffffffff880cb43e>] :cx23885:i2c_readbytes+0x1ae/0x25d >> [<ffffffff80230ef4>] printk+0x4e/0x56 >> [<ffffffff803e647a>] device_add+0x85/0x4a4 >> [<ffffffff80366e05>] kobject_init+0x41/0x69 >> [<ffffffff803ebe58>] _request_firmware+0x154/0x30f >> [<ffffffff880e3a7e>] :xc5000:xc_load_fw_and_init_tuner+0x64/0x293 >> [<ffffffff804ac2c7>] i2c_transfer+0x75/0x7f >> [<ffffffff880df3ad>] :s5h1409:s5h1409_writereg+0x51/0x83 >> [<ffffffff880e3cea>] :xc5000:xc5000_init+0x3d/0x6f >> [<ffffffff8806ab0c>] :dvb_core:dvb_frontend_init+0x49/0x63 >> [<ffffffff8806be8d>] :dvb_core:dvb_frontend_thread+0x78/0x307 >> [<ffffffff8806be15>] :dvb_core:dvb_frontend_thread+0x0/0x307 >> [<ffffffff80241392>] kthread+0x47/0x75 >> [<ffffffff8022bc6a>] schedule_tail+0x27/0x5c >> [<ffffffff8020bc88>] child_rip+0xa/0x12 >> [<ffffffff8024134b>] kthread+0x0/0x75 >> [<ffffffff8020bc7e>] child_rip+0x0/0x12 >> >> ---[ end trace 01bdacc4ebef05bf ]--- >> kobject_add_internal failed for i2c-1 with -EEXIST, don't try to >> register things with the same name in the same directory. >> Pid: 7730, comm: kdvb-fe-0 Tainted: P 2.6.25-gentoo-r6 #2 >> >> Call Trace: >> [<ffffffff8036710b>] kobject_add_internal+0x13f/0x17e >> [<ffffffff80367224>] kobject_add_varg+0x54/0x61 >> [<ffffffff802296d6>] __wake_up+0x38/0x4f >> [<ffffffff80367581>] kobject_add+0x74/0x7c >> [<ffffffff880cb43e>] :cx23885:i2c_readbytes+0x1ae/0x25d >> [<ffffffff80230ef4>] printk+0x4e/0x56 >> [<ffffffff803e647a>] device_add+0x85/0x4a4 >> [<ffffffff80366e05>] kobject_init+0x41/0x69 >> [<ffffffff803ebe58>] _request_firmware+0x154/0x30f >> [<ffffffff880e3a7e>] :xc5000:xc_load_fw_and_init_tuner+0x64/0x293 >> [<ffffffff804ac2c7>] i2c_transfer+0x75/0x7f >> [<ffffffff880df3ad>] :s5h1409:s5h1409_writereg+0x51/0x83 >> [<ffffffff880e3cea>] :xc5000:xc5000_init+0x3d/0x6f >> [<ffffffff8806ab0c>] :dvb_core:dvb_frontend_init+0x49/0x63 >> [<ffffffff8806be8d>] :dvb_core:dvb_frontend_thread+0x78/0x307 >> [<ffffffff8806be15>] :dvb_core:dvb_frontend_thread+0x0/0x307 >> [<ffffffff80241392>] kthread+0x47/0x75 >> [<ffffffff8022bc6a>] schedule_tail+0x27/0x5c >> [<ffffffff8020bc88>] child_rip+0xa/0x12 >> [<ffffffff8024134b>] kthread+0x0/0x75 >> [<ffffffff8020bc7e>] child_rip+0x0/0x12 >> >> fw_register_device: device_register failed >> xc5000: Upload failed. (file not found?) >> xc5000: Unable to initialise tuner > _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
