Bug 1231488
| Summary: | V4L: /var/log/messages WARNINGs about v4l_querycap+0x41/0x70 [videodev] | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | John Poet <jppoet> |
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> |
| Status: | CLOSED EOL | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 22 | CC: | fedora-kernel-v4l, gansalmon, itamar, jonathan, kernel-maint, klook987, madhu.chinakonda, mchehab, quantum.analyst |
| Target Milestone: | --- | Keywords: | Triaged |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | All | ||
| Whiteboard: | first=4.0.4 latest=4.1.3 | ||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-07-19 14:48:46 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
|
Description
John Poet
2015-06-13 21:25:36 UTC
Still there with 4.1.3-201.fc22.x86_64 Aug 11 02:34:50 cobalt kernel: WARNING: CPU: 7 PID: 7009 at drivers/media/v4l2-core/v4l2-ioctl.c:1027 v4l_querycap+0x Aug 11 02:34:50 cobalt kernel: Modules linked in: raid1 dm_crypt fuse nvidia(POE) drm nf_conntrack_netbios_ns nf_conn Aug 11 02:34:50 cobalt kernel: tveeprom snd_hda_controller dvb_core snd_hda_codec crct10dif_pclmul crc32_pclmul v4l2_ Aug 11 02:34:50 cobalt kernel: CPU: 7 PID: 7009 Comm: plasmashell Tainted: P W OE 4.1.3-201.fc22.x86_64 #1 Aug 11 02:34:50 cobalt kernel: Hardware name: ASUS All Series/Z87-WS, BIOS 2004 06/05/2014 Aug 11 02:34:50 kernel: 0000000000000000 00000000d73626a9 ffff8807a9b87c18 ffffffff8179b4bd Aug 11 02:34:50 kernel: 0000000000000000 0000000000000000 ffff8807a9b87c58 ffffffff810a163a Aug 11 02:34:50 kernel: ffff8807fa5bd8d0 ffff8807a9b87d70 0000000000000000 ffffffffa02f3140 Aug 11 02:34:50 kernel: Call Trace: Aug 11 02:34:50 kernel: [<ffffffff8179b4bd>] dump_stack+0x45/0x57 Aug 11 02:34:50 kernel: [<ffffffff810a163a>] warn_slowpath_common+0x8a/0xc0 Aug 11 02:34:50 kernel: [<ffffffff810a176a>] warn_slowpath_null+0x1a/0x20 Aug 11 02:34:50 kernel: [<ffffffffa02dc2d1>] v4l_querycap+0x41/0x70 [videodev] Aug 11 02:34:50 kernel: [<ffffffffa02dcb68>] __video_do_ioctl+0x2b8/0x340 [videodev] Aug 11 02:34:50 kernel: [<ffffffffa02dc64e>] video_usercopy+0x34e/0x590 [videodev] Aug 11 02:34:50 kernel: [<ffffffffa02dc8b0>] ? video_ioctl2+0x20/0x20 [videodev] Aug 11 02:34:50 kernel: [<ffffffffa02dc8a5>] video_ioctl2+0x15/0x20 [videodev] Aug 11 02:34:50 kernel: [<ffffffffa02d86f9>] v4l2_ioctl+0xd9/0xe0 [videodev] Aug 11 02:34:50 kernel: [<ffffffff8123fcb6>] do_vfs_ioctl+0x2c6/0x4d0 Aug 11 02:34:50 kernel: [<ffffffff8123c1df>] ? putname+0x6f/0x80 Aug 11 02:34:50 kernel: [<ffffffff8123ff41>] SyS_ioctl+0x81/0xa0 Aug 11 02:34:50 kernel: [<ffffffff817a1a6e>] system_call_fastpath+0x12/0x71 Aug 11 02:34:50 kernel: ---[ end trace c9e8083f0127a82a ]--- Also seeing a similar stack with the cx18 driver: WARNING: CPU: 0 PID: 3182 at drivers/media/v4l2-core/v4l2-ioctl.c:1027 v4l_querycap+0x41/0x70 [videodev]() Modules linked in: bnep bluetooth rfkill fuse xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw cx18_alsa mxl5005s s5h1409 tuner_simple tuner_types cs5345 tuner intel_rapl iosf_mbi raid1 x86_pkg_temp_thermal coretemp kvm_intel kvm vfat iTCO_wdt fat iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic cx18 snd_hda_intel crct10dif_pclmul snd_oxygen snd_hda_controller videobuf_vmalloc crc32_pclmul tveeprom crc32c_intel snd_oxygen_lib snd_hda_codec snd_mpu401_uart snd_rawmidi snd_hda_core cx2341x snd_hwdep ghash_clmulni_intel videobuf_core dvb_core snd_seq v4l2_common snd_seq_device videodev snd_pcm joydev mei_me lpc_ich media i2c_i801 mfd_core snd_timer mei tpm_infineon snd tpm_tis shpchp soundcore soc_button_array tpm nfsd auth_rpcgss nfs_acl lockd grace sunrpc binfmt_misc hid_logitech ff_memless nouveau i915 mxm_wmi wmi ttm i2c_algo_bit drm_kms_helper serio_raw e1000e drm ptp pps_core video CPU: 0 PID: 3182 Comm: GoogleTalkPlugi Tainted: G W 4.1.3-201.fc22.x86_64 #1 Hardware name: Gigabyte Technology Co., Ltd. Z87-D3HP/Z87-D3HP-CF, BIOS F6 01/20/2014 0000000000000000 00000000695c5b08 ffff88038b06fc18 ffffffff8179b4bd 0000000000000000 0000000000000000 ffff88038b06fc58 ffffffff810a163a ffffffffa063ee40 ffff88038b06fd70 0000000000000000 ffffffffa0535140 Call Trace: [<ffffffff8179b4bd>] dump_stack+0x45/0x57 [<ffffffff810a163a>] warn_slowpath_common+0x8a/0xc0 [<ffffffff810a176a>] warn_slowpath_null+0x1a/0x20 [<ffffffffa051e2d1>] v4l_querycap+0x41/0x70 [videodev] [<ffffffffa051eb68>] __video_do_ioctl+0x2b8/0x340 [videodev] [<ffffffffa051e64e>] video_usercopy+0x34e/0x590 [videodev] [<ffffffffa051e8b0>] ? video_ioctl2+0x20/0x20 [videodev] [<ffffffffa051e8a5>] video_ioctl2+0x15/0x20 [videodev] [<ffffffffa051a6d8>] v4l2_ioctl+0xb8/0xe0 [videodev] [<ffffffff8123fcb6>] do_vfs_ioctl+0x2c6/0x4d0 [<ffffffff8123ff41>] SyS_ioctl+0x81/0xa0 [<ffffffff810250d7>] ? syscall_trace_leave+0xc7/0x140 [<ffffffff817a1a6e>] system_call_fastpath+0x12/0x71 ---[ end trace d7b144049d3f958c ]--- Could someone include lspci and dmesg output so folks can tell exactly what has been detected? @John, do you still get this without the proprietary nvidia driver loaded? @Elliott, that isn't the first warning your kernel has output that boot? Are you getting repeated identical errors? If not, what's the first warning your kernel shows? Yes, it's the same error repeated. The only difference is the first one is triggered by v4l_id instead of GoogleTalkPlugin. What parts of lspci and dmesg do you need? I just installed 4.1.4-200.fc22.x86_64 and it looks like the problem is gone -- at least for my Hauppauge HVR-2250. Generally its best to send all of lspci and all of dmesg up to and including the WARNING. I'm just helping with triage so I can't tell you what exact pieces to cut out but a kernel dev might be able to spot something useful if they have the whole thing. Like John, the upgrade to 4.1.4-200.fc22.x86_64 also fixed the warnings for me. Fedora 22 changed to end-of-life (EOL) status on 2016-07-19. Fedora 22 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed. |