kernel-packages team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

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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