Thank you for providing a patch, and making Ubuntu better.
Can you provide some information on the status of the patch with regards
to getting it merged upstream? Has it been sent upstream, what sort of
feedback has it received, is it getting applied to a subsystem
maintainer's tree, etc?
People affected by this bug are probably wondering why the kernel team
doesn't just apply the patch and fix it. The reason is that the kernel
team is reluctant (not opposed) to apply any patch to a stable kernel
that is not from upstream. Applying patches that don't come from
upstream add greatly to the support of the kernel as other upstream
patches may touch the same area as the non-upstream patch and may
prevent them from applying cleanly.
To submit your patch, send your patch with the detailed
description/changelog and your Signoff (ending with Signed-off-by: your
name <email>), to the emails listed from ./scripts/get_maintainer.pl
drivers/SUBSYSTEM-DETAILS (the get_maintainer.pl is from the kernel
sources). Once you have sent the patch upstream and it's accepted,
please drop a note here so that we can cherry-pick/include the patch
into Ubuntu kernel.
** Changed in: linux-meta-lts-vivid (Ubuntu)
Status: Confirmed => Triaged
** Package changed: linux-meta-lts-vivid (Ubuntu) => linux (Ubuntu)
** Tags added: kernel-da-key
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https://bugs.launchpad.net/bugs/1457187
Title:
[DVB] dib0700 DVB devices not working with kernels >= 3.19.x (vivid +
trusty)
Status in linux package in Ubuntu:
Triaged
Bug description:
Hello,
starting with kernel >= 3.19 (vivid) my USB TV-Stick DVB-T "Terratec Cinergy
DT XS Diversity" stopped working.
=> BUG: unable to handle kernel NULL pointer dereference
This problem was not in kernel 3.16.x. (Utopic)
System: Kubuntu 14.04.2 64bit, kernel 3.19.x (lts-vivid,
3.19.0-18-generic #18~14.04.1-Ubuntu )
There is a bugreport available, where I have added my device-problem
too and a patch is available.
https://bugzilla.kernel.org/show_bug.cgi?id=92301
Patch:
http://permalink.gmane.org/gmane.linux.kernel.stable/135755
Please add this patch to kernels >= 3.19 (LTS HWE Vivid kernel Trusty
14.04, Vivid 15.04 and newer; linux-generic-lts-vivid, linux-image-
generic-lts-vivid, ... )
Thank you for your support!
Best regards, Bernhard
- log messsages:
Apr 9 18:01:03 stargazer kernel: [ 70.017022] usb 3-2.4.1: new high-speed
USB device number 4 using xhci_hcd
Apr 9 18:01:03 stargazer kernel: [ 70.107491] usb 3-2.4.1: New USB device
found, idVendor=0ccd, idProduct=005a
Apr 9 18:01:03 stargazer kernel: [ 70.107494] usb 3-2.4.1: New USB device
strings: Mfr=1, Product=2, SerialNumber=3
Apr 9 18:01:03 stargazer kernel: [ 70.107495] usb 3-2.4.1: Product:
Cinergy DT XS
Apr 9 18:01:03 stargazer kernel: [ 70.107497] usb 3-2.4.1: Manufacturer:
TerraTec
Apr 9 18:01:03 stargazer kernel: [ 70.107498] usb 3-2.4.1: SerialNumber:
070201001111
Apr 9 18:01:03 stargazer mtp-probe: checking bus 3, device 4:
"/sys/devices/pci0000:00/0000:00:1c.0/0000:06:00.0/0000:07:09.0/0000:0b:00.0/usb3/3-2/3-2.4/3-2.4.1"
Apr 9 18:01:03 stargazer mtp-probe: bus: 3, device: 4 was not an MTP device
Apr 9 18:01:03 stargazer kernel: [ 70.139371] dvb-usb: found a 'Terratec
Cinergy DT XS Diversity' in cold state, will try to load a firmware
Apr 9 18:01:03 stargazer kernel: [ 70.139617] dvb-usb: downloading
firmware from file 'dvb-usb-dib0700-1.20.fw'
Apr 9 18:01:03 stargazer kernel: [ 70.543833] dib0700: firmware started
successfully.
Apr 9 18:01:04 stargazer kernel: [ 71.047012] dvb-usb: found a 'Terratec
Cinergy DT XS Diversity' in warm state.
Apr 9 18:01:04 stargazer kernel: [ 71.047309] dvb-usb: will pass the
complete MPEG2 transport stream to the software demuxer.
Apr 9 18:01:04 stargazer kernel: [ 71.047746] DVB: registering new adapter
(Terratec Cinergy DT XS Diversity)
Apr 9 18:01:04 stargazer kernel: [ 71.057441] BUG: unable to handle kernel
NULL pointer dereference at 0000000000000080
Apr 9 18:01:04 stargazer kernel: [ 71.057450] IP: [<ffffffffc0ded141>]
dib7000p_attach+0x11/0xa0 [dib7000p]
Apr 9 18:01:04 stargazer kernel: [ 71.057457] PGD cd4be067 PUD cd4e4067
PMD 0
Apr 9 18:01:04 stargazer kernel: [ 71.057463] Oops: 0002 [#1] SMP
Apr 9 18:01:04 stargazer kernel: [ 71.057466] Modules linked in: dib7000p
dvb_usb_dib0700(+) dib7000m dib0090 dib0070 dib3000mc dibx000_common dvb_usb
dvb_core rc_core dm_crypt nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter
ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack
iptable_filter ip_tables x_tables snd_hda_codec_hdmi snd_usb_audio joydev
snd_usbmidi_lib gpio_ich mxm_wmi hid_logitech_hidpp snd_hda_codec_via
snd_hda_codec_generic nvidia(POE) snd_hda_intel kvm_intel snd_hda_controller
snd_hda_codec kvm snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi
serio_raw i7core_edac edac_core snd_seq snd_seq_device snd_timer snd drm
soundcore lpc_ich shpchp rfcomm bnep bluetooth wmi mac_hid binfmt_misc
parport_pc ppdev coretemp lp parport pata_acpi hid_logitech_dj hid_generic
usbhid hid psmouse firewire_ohci firewire_core r8169 ahci crc_itu_t
pata_jmicron mii libahci
Apr 9 18:01:04 stargazer kernel: [ 71.057531] CPU: 2 PID: 3496 Comm:
systemd-udevd Tainted: P OE 3.19.0-12-generic #12~14.04.1-Ubuntu
Apr 9 18:01:04 stargazer kernel: [ 71.057533] Hardware name: System
manufacturer System Product Name/P7P55D-E PRO, BIOS 1703 06/26/2012
Apr 9 18:01:04 stargazer kernel: [ 71.057535] task: ffff880036275850 ti:
ffff8800cd548000 task.ti: ffff8800cd548000
Apr 9 18:01:04 stargazer kernel: [ 71.057537] RIP:
0010:[<ffffffffc0ded141>] [<ffffffffc0ded141>] dib7000p_attach+0x11/0xa0
[dib7000p]
Apr 9 18:01:04 stargazer kernel: [ 71.057541] RSP: 0018:ffff8800cd54ba68
EFLAGS: 00010202
Apr 9 18:01:04 stargazer kernel: [ 71.057543] RAX: 0000000000000010 RBX:
ffff8803e0aed278 RCX: 0000000000000001
Apr 9 18:01:04 stargazer kernel: [ 71.057545] RDX: 0000000000000001 RSI:
ffffffffc0df4758 RDI: 0000000000000010
Apr 9 18:01:04 stargazer kernel: [ 71.057546] RBP: ffff8800cd54ba68 R08:
ffffffff810f1470 R09: ffff88041fc57140
Apr 9 18:01:04 stargazer kernel: [ 71.057548] R10: ffffea000f66a680 R11:
ffffffff81088634 R12: 0000000000000000
Apr 9 18:01:04 stargazer kernel: [ 71.057549] R13: 0000000000000010 R14:
ffff8803e0aed278 R15: ffff8803e0aed398
Apr 9 18:01:04 stargazer kernel: [ 71.057552] FS: 00007f688ee9d880(0000)
GS:ffff88041fc40000(0000) knlGS:0000000000000000
Apr 9 18:01:04 stargazer kernel: [ 71.057554] CS: 0010 DS: 0000 ES: 0000
CR0: 000000008005003b
Apr 9 18:01:04 stargazer kernel: [ 71.057555] CR2: 0000000000000080 CR3:
00000000cd4e7000 CR4: 00000000000007e0
Apr 9 18:01:04 stargazer kernel: [ 71.057557] Stack:
Apr 9 18:01:04 stargazer kernel: [ 71.057558] ffff8800cd54ba98
ffffffffc0e6105b ffff8803e0aed398 ffff8803e0aed278
Apr 9 18:01:04 stargazer kernel: [ 71.057561] ffff8803e0aed278
0000000000000000 ffff8800cd54bad8 ffffffffc0df88d8
Apr 9 18:01:04 stargazer kernel: [ 71.057564] ffff8803e0aec000
0000000000000000 ffff8803e0aed278 ffff8803e0aec000
Apr 9 18:01:04 stargazer kernel: [ 71.057567] Call Trace:
Apr 9 18:01:04 stargazer kernel: [ 71.057575] [<ffffffffc0e6105b>]
stk7700d_frontend_attach+0x3b/0x200 [dvb_usb_dib0700]
Apr 9 18:01:04 stargazer kernel: [ 71.057580] [<ffffffffc0df88d8>]
dvb_usb_adapter_frontend_init+0xf8/0x1b0 [dvb_usb]
Apr 9 18:01:04 stargazer kernel: [ 71.057583] [<ffffffffc0df7acc>]
dvb_usb_device_init+0x4fc/0x750 [dvb_usb]
Apr 9 18:01:04 stargazer kernel: [ 71.057588] [<ffffffffc0e5d33a>]
dib0700_probe+0x6a/0x100 [dvb_usb_dib0700]
Apr 9 18:01:04 stargazer kernel: [ 71.057594] [<ffffffff817b11b6>] ?
mutex_lock+0x16/0x37
Apr 9 18:01:04 stargazer kernel: [ 71.057598] [<ffffffff815add1b>]
usb_probe_interface+0x1bb/0x300
Apr 9 18:01:04 stargazer kernel: [ 71.057603] [<ffffffff814f2d2d>]
driver_probe_device+0x12d/0x3e0
Apr 9 18:01:04 stargazer kernel: [ 71.057606] [<ffffffff814f30bb>]
__driver_attach+0x9b/0xa0
Apr 9 18:01:04 stargazer kernel: [ 71.057609] [<ffffffff814f3020>] ?
__device_attach+0x40/0x40
Apr 9 18:01:04 stargazer kernel: [ 71.057612] [<ffffffff814f0c33>]
bus_for_each_dev+0x63/0xa0
Apr 9 18:01:04 stargazer kernel: [ 71.057615] [<ffffffff814f270e>]
driver_attach+0x1e/0x20
Apr 9 18:01:04 stargazer kernel: [ 71.057618] [<ffffffff814f2300>]
bus_add_driver+0x180/0x240
Apr 9 18:01:04 stargazer kernel: [ 71.057621] [<ffffffff814f38a4>]
driver_register+0x64/0xf0
Apr 9 18:01:04 stargazer kernel: [ 71.057624] [<ffffffff815ac4e2>]
usb_register_driver+0x82/0x160
Apr 9 18:01:04 stargazer kernel: [ 71.057628] [<ffffffffc0e81000>] ?
0xffffffffc0e81000
Apr 9 18:01:04 stargazer kernel: [ 71.057633] [<ffffffffc0e8101e>]
dib0700_driver_init+0x1e/0x1000 [dvb_usb_dib0700]
Apr 9 18:01:04 stargazer kernel: [ 71.057637] [<ffffffff81002144>]
do_one_initcall+0xd4/0x210
Apr 9 18:01:04 stargazer kernel: [ 71.057641] [<ffffffff811cd549>] ?
kmem_cache_alloc_trace+0x199/0x220
Apr 9 18:01:04 stargazer kernel: [ 71.057645] [<ffffffff810f639d>] ?
load_module+0x162d/0x1ca0
Apr 9 18:01:04 stargazer kernel: [ 71.057648] [<ffffffff810f63d6>]
load_module+0x1666/0x1ca0
Apr 9 18:01:04 stargazer kernel: [ 71.057651] [<ffffffff810f1c90>] ?
store_uevent+0x40/0x40
Apr 9 18:01:04 stargazer kernel: [ 71.057655] [<ffffffff810f6b86>]
SyS_finit_module+0x86/0xb0
Apr 9 18:01:04 stargazer kernel: [ 71.057659] [<ffffffff817b328d>]
system_call_fastpath+0x16/0x1b
Apr 9 18:01:04 stargazer kernel: [ 71.057660] Code: 48 8b 87 18 03 00 00
48 89 e5 48 05 68 16 00 00 5d c3 0f 1f 84 00 00 00 00 00 66 66 66 66 90 55 48
85 ff 48 89 f8 48 89 e5 74 7f <48> c7 47 70 80 ec de c0 48 c7 47 68 f0 dc de c0
48 c7 47 30 70
Apr 9 18:01:04 stargazer kernel: [ 71.057688] RIP [<ffffffffc0ded141>]
dib7000p_attach+0x11/0xa0 [dib7000p]
Apr 9 18:01:04 stargazer kernel: [ 71.057692] RSP <ffff8800cd54ba68>
Apr 9 18:01:04 stargazer kernel: [ 71.057693] CR2: 0000000000000080
Apr 9 18:01:04 stargazer kernel: [ 71.057696] ---[ end trace
36adf9b87fe4bc99 ]---
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