From: "Frank Schäfer" <fschaefer.oss@googlemail.com>
To: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Linux Media Mailing List <linux-media@vger.kernel.org>
Subject: Re: [PATCH 3/7] em28xx: Only deallocate struct em28xx after finishing all extensions
Date: Tue, 14 Jan 2014 21:57:52 +0100 [thread overview]
Message-ID: <52D5A4D0.1020509@googlemail.com> (raw)
In-Reply-To: <20140114173121.1f06ec38@samsung.com>
Am 14.01.2014 20:31, schrieb Mauro Carvalho Chehab:
>
> Ok, patch 5 is not needed anymore.
>
> However, after a series of removals and re-inserts, I got these:
>
>
> [120982.699455] ------------[ cut here ]------------
> [120982.699509] WARNING: CPU: 0 PID: 7953 at lib/list_debug.c:33 __list_add+0xac/0xc0()
> [120982.699539] list_add corruption. prev->next should be next (ffff88019ffce4f8), but was 0000000d00000007. (prev=ffff880101dbfb48).
> [120982.699566] Modules linked in: lgdt330x tuner_xc2028 tuner tvp5150 rc_hauppauge em28xx_rc rc_core xc5000 drxk em28xx_dvb dvb_core em28xx_alsa em28xx_v4l videobuf2_vmalloc videobuf2_memops videobuf2_core em28xx tveeprom v4l2_common videodev media netconsole usb_storage fuse ccm nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6t_REJECT 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 bnep arc4 vfat fat iwldvm mac80211 iwlwifi cfg80211 x86_pkg_temp_thermal coretemp kvm_intel kvm crc32_pclmul crc32c_intel ghash_clmulni_intel
> [120982.701828] snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm iTCO_wdt iTCO_vendor_support btusb bluetooth joydev microcode serio_raw r8169 mii i2c_i801 lpc_ich mfd_core rfkill snd_page_alloc snd_timer snd mei_me soundcore mei shpchp nfsd auth_rpcgss nfs_acl lockd sunrpc nouveau i915 ttm i2c_algo_bit drm_kms_helper drm i2c_core mxm_wmi wmi video [last unloaded: videobuf2_memops]
> [120982.703581] CPU: 0 PID: 7953 Comm: xawtv Tainted: G D 3.13.0-rc1+ #24
> [120982.703610] Hardware name: SAMSUNG ELECTRONICS CO., LTD. 550P5C/550P7C/SAMSUNG_NP1234567890, BIOS P04ABI.013.130220.dg 02/20/2013
> [120982.703638] 0000000000000009 ffff88011f63bb70 ffffffff816a03c6 ffff88011f63bbb8
> [120982.703794] ffff88011f63bba8 ffffffff8106aaad ffff88018cfb3f48 ffff88019ffce4f8
> [120982.703924] ffff880101dbfb48 0000000000000282 0000000000000000 ffff88011f63bc08
> [120982.704056] Call Trace:
> [120982.704093] [<ffffffff816a03c6>] dump_stack+0x45/0x56
> [120982.704129] [<ffffffff8106aaad>] warn_slowpath_common+0x7d/0xa0
> [120982.704162] [<ffffffff8106ab1c>] warn_slowpath_fmt+0x4c/0x50
> [120982.704197] [<ffffffff81343bac>] __list_add+0xac/0xc0
> [120982.704233] [<ffffffffa04fd70b>] buffer_queue+0x7b/0xb0 [em28xx_v4l]
> [120982.704432] [<ffffffffa04862d4>] __enqueue_in_driver+0x74/0x80 [videobuf2_core]
> [120982.704469] [<ffffffffa04878c0>] vb2_streamon+0xa0/0x140 [videobuf2_core]
> [120982.704505] [<ffffffffa04879a8>] vb2_ioctl_streamon+0x48/0x50 [videobuf2_core]
> [120982.704543] [<ffffffffa04b7a8a>] v4l_streamon+0x1a/0x20 [videodev]
> [120982.704581] [<ffffffffa04bb644>] __video_do_ioctl+0x2a4/0x330 [videodev]
> [120982.704619] [<ffffffffa04bb3a0>] ? v4l_dbg_s_register+0x150/0x150 [videodev]
> [120982.704658] [<ffffffffa04bb3a0>] ? v4l_dbg_s_register+0x150/0x150 [videodev]
> [120982.704719] [<ffffffffa04bcae0>] video_usercopy+0x240/0x5d0 [videodev]
> [120982.704756] [<ffffffff810b811d>] ? trace_hardirqs_on+0xd/0x10
> [120982.704792] [<ffffffffa04b663b>] ? v4l2_ioctl+0x5b/0x160 [videodev]
> [120982.704829] [<ffffffffa04b663b>] ? v4l2_ioctl+0x5b/0x160 [videodev]
> [120982.704867] [<ffffffffa04bce85>] video_ioctl2+0x15/0x20 [videodev]
> [120982.704903] [<ffffffffa04b6703>] v4l2_ioctl+0x123/0x160 [videodev]
> [120982.704939] [<ffffffff811db8b0>] do_vfs_ioctl+0x300/0x520
> [120982.704974] [<ffffffff812c7a96>] ? file_has_perm+0x86/0xa0
> [120982.705006] [<ffffffff811dbb51>] SyS_ioctl+0x81/0xa0
> [120982.705039] [<ffffffff816b1929>] system_call_fastpath+0x16/0x1b
> [120982.705070] ---[ end trace 7e24c4fe20a76f18 ]---
> [120985.899453] ------------[ cut here ]------------
> [120985.899502] WARNING: CPU: 0 PID: 7953 at lib/list_debug.c:33 __list_add+0xac/0xc0()
> [120985.899531] list_add corruption. prev->next should be next (ffff88019ffce4f8), but was (null). (prev=ffff88018cfb0348).
> [120985.899559] Modules linked in: lgdt330x tuner_xc2028 tuner tvp5150 rc_hauppauge em28xx_rc rc_core xc5000 drxk em28xx_dvb dvb_core em28xx_alsa em28xx_v4l videobuf2_vmalloc videobuf2_memops videobuf2_core em28xx tveeprom v4l2_common videodev media netconsole usb_storage fuse ccm nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6t_REJECT 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 bnep arc4 vfat fat iwldvm mac80211 iwlwifi cfg80211 x86_pkg_temp_thermal coretemp kvm_intel kvm crc32_pclmul crc32c_intel ghash_clmulni_intel
> [120985.901761] snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm iTCO_wdt iTCO_vendor_support btusb bluetooth joydev microcode serio_raw r8169 mii i2c_i801 lpc_ich mfd_core rfkill snd_page_alloc snd_timer snd mei_me soundcore mei shpchp nfsd auth_rpcgss nfs_acl lockd sunrpc nouveau i915 ttm i2c_algo_bit drm_kms_helper drm i2c_core mxm_wmi wmi video [last unloaded: videobuf2_memops]
> [120985.903502] CPU: 0 PID: 7953 Comm: xawtv Tainted: G D W 3.13.0-rc1+ #24
> [120985.903530] Hardware name: SAMSUNG ELECTRONICS CO., LTD. 550P5C/550P7C/SAMSUNG_NP1234567890, BIOS P04ABI.013.130220.dg 02/20/2013
> [120985.903557] 0000000000000009 ffff88011f63bb70 ffffffff816a03c6 ffff88011f63bbb8
> [120985.903686] ffff88011f63bba8 ffffffff8106aaad ffff88018cfb0348 ffff88019ffce4f8
> [120985.903826] ffff88018cfb0348 0000000000000282 0000000000000000 ffff88011f63bc08
> [120985.903955] Call Trace:
> [120985.903988] [<ffffffff816a03c6>] dump_stack+0x45/0x56
> [120985.904021] [<ffffffff8106aaad>] warn_slowpath_common+0x7d/0xa0
> [120985.904052] [<ffffffff8106ab1c>] warn_slowpath_fmt+0x4c/0x50
> [120985.904083] [<ffffffff81343bac>] __list_add+0xac/0xc0
> [120985.904116] [<ffffffffa04fd70b>] buffer_queue+0x7b/0xb0 [em28xx_v4l]
> [120985.904295] [<ffffffffa04862d4>] __enqueue_in_driver+0x74/0x80 [videobuf2_core]
> [120985.904330] [<ffffffffa04878c0>] vb2_streamon+0xa0/0x140 [videobuf2_core]
> [120985.904363] [<ffffffffa04879a8>] vb2_ioctl_streamon+0x48/0x50 [videobuf2_core]
> [120985.904398] [<ffffffffa04b7a8a>] v4l_streamon+0x1a/0x20 [videodev]
> [120985.904433] [<ffffffffa04bb644>] __video_do_ioctl+0x2a4/0x330 [videodev]
> [120985.904470] [<ffffffffa04bb3a0>] ? v4l_dbg_s_register+0x150/0x150 [videodev]
> [120985.904504] [<ffffffffa04bb3a0>] ? v4l_dbg_s_register+0x150/0x150 [videodev]
> [120985.904540] [<ffffffffa04bcae0>] video_usercopy+0x240/0x5d0 [videodev]
> [120985.904575] [<ffffffff810b811d>] ? trace_hardirqs_on+0xd/0x10
> [120985.904608] [<ffffffffa04b663b>] ? v4l2_ioctl+0x5b/0x160 [videodev]
> [120985.904641] [<ffffffffa04b663b>] ? v4l2_ioctl+0x5b/0x160 [videodev]
> [120985.904676] [<ffffffffa04bce85>] video_ioctl2+0x15/0x20 [videodev]
> [120985.904710] [<ffffffffa04b6703>] v4l2_ioctl+0x123/0x160 [videodev]
> [120985.904743] [<ffffffff811db8b0>] do_vfs_ioctl+0x300/0x520
> [120985.904780] [<ffffffff812c7a96>] ? file_has_perm+0x86/0xa0
> [120985.904810] [<ffffffff811dbb51>] SyS_ioctl+0x81/0xa0
> [120985.904843] [<ffffffff816b1929>] system_call_fastpath+0x16/0x1b
> [120985.904871] ---[ end trace 7e24c4fe20a76f19 ]---
> [120985.904896] ------------[ cut here ]------------
> [120985.904922] WARNING: CPU: 0 PID: 7953 at lib/list_debug.c:36 __list_add+0x8a/0xc0()
> [120985.904953] list_add double add: new=ffff88018cfb0348, prev=ffff88018cfb0348, next=ffff88019ffce4f8.
> [120985.904978] Modules linked in: lgdt330x tuner_xc2028 tuner tvp5150 rc_hauppauge em28xx_rc rc_core xc5000 drxk em28xx_dvb dvb_core em28xx_alsa em28xx_v4l videobuf2_vmalloc videobuf2_memops videobuf2_core em28xx tveeprom v4l2_common videodev media netconsole usb_storage fuse ccm nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6t_REJECT 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 bnep arc4 vfat fat iwldvm mac80211 iwlwifi cfg80211 x86_pkg_temp_thermal coretemp kvm_intel kvm crc32_pclmul crc32c_intel ghash_clmulni_intel
> [120985.907016] snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm iTCO_wdt iTCO_vendor_support btusb bluetooth joydev microcode serio_raw r8169 mii i2c_i801 lpc_ich mfd_core rfkill snd_page_alloc snd_timer snd mei_me soundcore mei shpchp nfsd auth_rpcgss nfs_acl lockd sunrpc nouveau i915 ttm i2c_algo_bit drm_kms_helper drm i2c_core mxm_wmi wmi video [last unloaded: videobuf2_memops]
> [120985.908654] CPU: 0 PID: 7953 Comm: xawtv Tainted: G D W 3.13.0-rc1+ #24
> [120985.908680] Hardware name: SAMSUNG ELECTRONICS CO., LTD. 550P5C/550P7C/SAMSUNG_NP1234567890, BIOS P04ABI.013.130220.dg 02/20/2013
> [120985.908707] 0000000000000009 ffff88011f63bb70 ffffffff816a03c6 ffff88011f63bbb8
> [120985.908988] ffff88011f63bba8 ffffffff8106aaad ffff88018cfb0348 ffff88019ffce4f8
> [120985.909110] ffff88018cfb0348 0000000000000282 0000000000000000 ffff88011f63bc08
> [120985.909230] Call Trace:
> [120985.909268] [<ffffffff816a03c6>] dump_stack+0x45/0x56
> [120985.909305] [<ffffffff8106aaad>] warn_slowpath_common+0x7d/0xa0
> [120985.909336] [<ffffffff8106ab1c>] warn_slowpath_fmt+0x4c/0x50
> [120985.909380] [<ffffffff81343b8a>] __list_add+0x8a/0xc0
> [120985.909410] [<ffffffffa04fd70b>] buffer_queue+0x7b/0xb0 [em28xx_v4l]
> [120985.909442] [<ffffffffa04862d4>] __enqueue_in_driver+0x74/0x80 [videobuf2_core]
> [120985.909474] [<ffffffffa04878c0>] vb2_streamon+0xa0/0x140 [videobuf2_core]
> [120985.909505] [<ffffffffa04879a8>] vb2_ioctl_streamon+0x48/0x50 [videobuf2_core]
> [120985.909537] [<ffffffffa04b7a8a>] v4l_streamon+0x1a/0x20 [videodev]
> [120985.909570] [<ffffffffa04bb644>] __video_do_ioctl+0x2a4/0x330 [videodev]
> [120985.909604] [<ffffffffa04bb3a0>] ? v4l_dbg_s_register+0x150/0x150 [videodev]
> [120985.909636] [<ffffffffa04bb3a0>] ? v4l_dbg_s_register+0x150/0x150 [videodev]
> [120985.909670] [<ffffffffa04bcae0>] video_usercopy+0x240/0x5d0 [videodev]
> [120985.909702] [<ffffffff810b811d>] ? trace_hardirqs_on+0xd/0x10
> [120985.909732] [<ffffffffa04b663b>] ? v4l2_ioctl+0x5b/0x160 [videodev]
> [120985.909764] [<ffffffffa04b663b>] ? v4l2_ioctl+0x5b/0x160 [videodev]
> [120985.909799] [<ffffffffa04bce85>] video_ioctl2+0x15/0x20 [videodev]
> [120985.909830] [<ffffffffa04b6703>] v4l2_ioctl+0x123/0x160 [videodev]
> [120985.909860] [<ffffffff811db8b0>] do_vfs_ioctl+0x300/0x520
> [120985.909890] [<ffffffff812c7a96>] ? file_has_perm+0x86/0xa0
> [120985.909918] [<ffffffff811dbb51>] SyS_ioctl+0x81/0xa0
> [120985.909948] [<ffffffff816b1929>] system_call_fastpath+0x16/0x1b
> [120985.909974] ---[ end trace 7e24c4fe20a76f1a ]---
> [120985.910186] ------------[ cut here ]------------
> [120985.910213] WARNING: CPU: 0 PID: 7953 at lib/list_debug.c:33 __list_add+0xac/0xc0()
> [120985.910236] list_add corruption. prev->next should be next (ffff88019ffce4f8), but was ffff88018cfb0348. (prev=ffff88018cfb0348).
> [120985.910257] Modules linked in: lgdt330x tuner_xc2028 tuner tvp5150 rc_hauppauge em28xx_rc rc_core xc5000 drxk em28xx_dvb dvb_core em28xx_alsa em28xx_v4l videobuf2_vmalloc videobuf2_memops videobuf2_core em28xx tveeprom v4l2_common videodev media netconsole usb_storage fuse ccm nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6t_REJECT 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 bnep arc4 vfat fat iwldvm mac80211 iwlwifi cfg80211 x86_pkg_temp_thermal coretemp kvm_intel kvm crc32_pclmul crc32c_intel ghash_clmulni_intel
> [120985.912159] snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm iTCO_wdt iTCO_vendor_support btusb bluetooth joydev microcode serio_raw r8169 mii i2c_i801 lpc_ich mfd_core rfkill snd_page_alloc snd_timer snd mei_me soundcore mei shpchp nfsd auth_rpcgss nfs_acl lockd sunrpc nouveau i915 ttm i2c_algo_bit drm_kms_helper drm i2c_core mxm_wmi wmi video [last unloaded: videobuf2_memops]
> [120985.913642] CPU: 0 PID: 7953 Comm: xawtv Tainted: G D W 3.13.0-rc1+ #24
> [120985.913667] Hardware name: SAMSUNG ELECTRONICS CO., LTD. 550P5C/550P7C/SAMSUNG_NP1234567890, BIOS P04ABI.013.130220.dg 02/20/2013
> [120985.913691] 0000000000000009 ffff88011f63bb70 ffffffff816a03c6 ffff88011f63bbb8
> [120985.913805] ffff88011f63bba8 ffffffff8106aaad ffff88018cfb3f48 ffff88019ffce4f8
> [120985.913920] ffff88018cfb0348 0000000000000282 0000000000000000 ffff88011f63bc08
> [120985.914035] Call Trace:
> [120985.914063] [<ffffffff816a03c6>] dump_stack+0x45/0x56
> [120985.914093] [<ffffffff8106aaad>] warn_slowpath_common+0x7d/0xa0
> [120985.914121] [<ffffffff8106ab1c>] warn_slowpath_fmt+0x4c/0x50
> [120985.914150] [<ffffffff81343bac>] __list_add+0xac/0xc0
> [120985.914180] [<ffffffffa04fd70b>] buffer_queue+0x7b/0xb0 [em28xx_v4l]
> [120985.914353] [<ffffffffa04862d4>] __enqueue_in_driver+0x74/0x80 [videobuf2_core]
> [120985.914385] [<ffffffffa04878c0>] vb2_streamon+0xa0/0x140 [videobuf2_core]
> [120985.914416] [<ffffffffa04879a8>] vb2_ioctl_streamon+0x48/0x50 [videobuf2_core]
> [120985.914449] [<ffffffffa04b7a8a>] v4l_streamon+0x1a/0x20 [videodev]
> [120985.914482] [<ffffffffa04bb644>] __video_do_ioctl+0x2a4/0x330 [videodev]
> [120985.914515] [<ffffffffa04bb3a0>] ? v4l_dbg_s_register+0x150/0x150 [videodev]
> [120985.914548] [<ffffffffa04bb3a0>] ? v4l_dbg_s_register+0x150/0x150 [videodev]
> [120985.914580] [<ffffffffa04bcae0>] video_usercopy+0x240/0x5d0 [videodev]
> [120985.914612] [<ffffffff810b811d>] ? trace_hardirqs_on+0xd/0x10
> [120985.914643] [<ffffffffa04b663b>] ? v4l2_ioctl+0x5b/0x160 [videodev]
> [120985.914675] [<ffffffffa04b663b>] ? v4l2_ioctl+0x5b/0x160 [videodev]
> [120985.914708] [<ffffffffa04bce85>] video_ioctl2+0x15/0x20 [videodev]
> [120985.914740] [<ffffffffa04b6703>] v4l2_ioctl+0x123/0x160 [videodev]
> [120985.914770] [<ffffffff811db8b0>] do_vfs_ioctl+0x300/0x520
> [120985.914799] [<ffffffff812c7a96>] ? file_has_perm+0x86/0xa0
> [120985.914828] [<ffffffff811dbb51>] SyS_ioctl+0x81/0xa0
> [120985.914857] [<ffffffff816b1929>] system_call_fastpath+0x16/0x1b
> [120985.914884] ---[ end trace 7e24c4fe20a76f1b ]---
> [120991.576999] em2882/3 #0: submit of audio urb failed
> [120991.781651] ------------[ cut here ]------------
> [120991.781700] WARNING: CPU: 0 PID: 7979 at lib/list_debug.c:33 __list_add+0xac/0xc0()
> [120991.781730] list_add corruption. prev->next should be next (ffff88019ffce4f8), but was (null). (prev=ffff88018cfb1b48).
> [120991.781756] Modules linked in: lgdt330x tuner_xc2028 tuner tvp5150 rc_hauppauge em28xx_rc rc_core xc5000 drxk em28xx_dvb dvb_core em28xx_alsa em28xx_v4l videobuf2_vmalloc videobuf2_memops videobuf2_core em28xx tveeprom v4l2_common videodev media netconsole usb_storage fuse ccm nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6t_REJECT 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 bnep arc4 vfat fat iwldvm mac80211 iwlwifi cfg80211 x86_pkg_temp_thermal coretemp kvm_intel kvm crc32_pclmul crc32c_intel ghash_clmulni_intel
> [120991.783977] snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm iTCO_wdt iTCO_vendor_support btusb bluetooth joydev microcode serio_raw r8169 mii i2c_i801 lpc_ich mfd_core rfkill snd_page_alloc snd_timer snd mei_me soundcore mei shpchp nfsd auth_rpcgss nfs_acl lockd sunrpc nouveau i915 ttm i2c_algo_bit drm_kms_helper drm i2c_core mxm_wmi wmi video [last unloaded: videobuf2_memops]
> [120991.785750] CPU: 0 PID: 7979 Comm: tvtime Tainted: G D W 3.13.0-rc1+ #24
> [120991.785779] Hardware name: SAMSUNG ELECTRONICS CO., LTD. 550P5C/550P7C/SAMSUNG_NP1234567890, BIOS P04ABI.013.130220.dg 02/20/2013
> [120991.785806] 0000000000000009 ffff88001254fb70 ffffffff816a03c6 ffff88001254fbb8
> [120991.785938] ffff88001254fba8 ffffffff8106aaad ffff88018cfb3f48 ffff88019ffce4f8
> [120991.786102] ffff88018cfb1b48 0000000000000282 0000000000000000 ffff88001254fc08
> [120991.786233] Call Trace:
> [120991.786268] [<ffffffff816a03c6>] dump_stack+0x45/0x56
> [120991.786319] [<ffffffff8106aaad>] warn_slowpath_common+0x7d/0xa0
> [120991.786359] [<ffffffff8106ab1c>] warn_slowpath_fmt+0x4c/0x50
> [120991.786393] [<ffffffff81343bac>] __list_add+0xac/0xc0
> [120991.786429] [<ffffffffa04fd70b>] buffer_queue+0x7b/0xb0 [em28xx_v4l]
> [120991.786619] [<ffffffffa04862d4>] __enqueue_in_driver+0x74/0x80 [videobuf2_core]
> [120991.786656] [<ffffffffa04878c0>] vb2_streamon+0xa0/0x140 [videobuf2_core]
> [120991.786690] [<ffffffffa04879a8>] vb2_ioctl_streamon+0x48/0x50 [videobuf2_core]
> [120991.786728] [<ffffffffa04b7a8a>] v4l_streamon+0x1a/0x20 [videodev]
> [120991.786767] [<ffffffffa04bb644>] __video_do_ioctl+0x2a4/0x330 [videodev]
> [120991.786804] [<ffffffffa04bb3a0>] ? v4l_dbg_s_register+0x150/0x150 [videodev]
> [120991.786841] [<ffffffffa04bb3a0>] ? v4l_dbg_s_register+0x150/0x150 [videodev]
> [120991.786880] [<ffffffffa04bcae0>] video_usercopy+0x240/0x5d0 [videodev]
> [120991.786917] [<ffffffff810b811d>] ? trace_hardirqs_on+0xd/0x10
> [120991.786952] [<ffffffffa04b663b>] ? v4l2_ioctl+0x5b/0x160 [videodev]
> [120991.786988] [<ffffffffa04b663b>] ? v4l2_ioctl+0x5b/0x160 [videodev]
> [120991.787027] [<ffffffffa04bce85>] video_ioctl2+0x15/0x20 [videodev]
> [120991.787063] [<ffffffffa04b6703>] v4l2_ioctl+0x123/0x160 [videodev]
> [120991.787098] [<ffffffff811db8b0>] do_vfs_ioctl+0x300/0x520
> [120991.787133] [<ffffffff812c7a96>] ? file_has_perm+0x86/0xa0
> [120991.787165] [<ffffffff811dbb51>] SyS_ioctl+0x81/0xa0
> [120991.787199] [<ffffffff816b1929>] system_call_fastpath+0x16/0x1b
> [120991.787230] ---[ end trace 7e24c4fe20a76f1c ]---
Nice. :/
Maybe it's time to check the videobuf2 handling.
next prev parent reply other threads:[~2014-01-14 20:56 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-12 23:00 [PATCH 0/7] Fix remaining issues with em28xx device removal Mauro Carvalho Chehab
2014-01-12 23:00 ` [PATCH 1/7] em28xx-audio: fix return code on device disconnect Mauro Carvalho Chehab
2014-01-13 18:38 ` Frank Schäfer
2014-01-12 23:00 ` [PATCH 2/7] em28xx-audio: simplify error handling Mauro Carvalho Chehab
2014-01-13 18:41 ` Frank Schäfer
2014-01-12 23:00 ` [PATCH 3/7] em28xx: Only deallocate struct em28xx after finishing all extensions Mauro Carvalho Chehab
2014-01-13 19:02 ` Frank Schäfer
2014-01-13 19:23 ` Mauro Carvalho Chehab
2014-01-13 21:55 ` Frank Schäfer
2014-01-14 13:10 ` Mauro Carvalho Chehab
2014-01-14 18:13 ` Frank Schäfer
2014-01-14 18:55 ` Mauro Carvalho Chehab
2014-01-14 19:31 ` Mauro Carvalho Chehab
2014-01-14 20:57 ` Frank Schäfer [this message]
2014-01-14 20:48 ` Frank Schäfer
2014-01-14 21:20 ` Mauro Carvalho Chehab
2014-01-15 18:48 ` Frank Schäfer
2014-01-14 17:36 ` [PATCH v2] " Mauro Carvalho Chehab
2014-01-15 21:13 ` Frank Schäfer
2014-02-09 18:41 ` Frank Schäfer
2014-02-09 20:09 ` Mauro Carvalho Chehab
2014-02-12 18:00 ` Frank Schäfer
2014-03-05 14:22 ` [PATCH v3] " Mauro Carvalho Chehab
2014-03-07 17:04 ` Frank Schäfer
2014-03-07 17:38 ` Mauro Carvalho Chehab
2014-03-08 10:51 ` Frank Schäfer
2014-01-12 23:00 ` [PATCH 4/7] em28xx-audio: disconnect before freeing URBs Mauro Carvalho Chehab
2014-01-13 18:47 ` Frank Schäfer
2014-01-12 23:00 ` [PATCH 5/7] em28xx-audio: remove a deplock circular dependency Mauro Carvalho Chehab
2014-01-13 21:51 ` Frank Schäfer
2014-01-14 15:45 ` Mauro Carvalho Chehab
2014-01-14 18:43 ` Frank Schäfer
2014-01-14 19:59 ` Mauro Carvalho Chehab
2014-01-14 20:51 ` Frank Schäfer
2014-01-12 23:00 ` [PATCH 6/7] em28xx: print a message at disconnect Mauro Carvalho Chehab
2014-01-13 18:51 ` Frank Schäfer
2014-01-12 23:00 ` [PATCH 7/7] em28xx: Fix usb diconnect logic Mauro Carvalho Chehab
2014-01-13 18:53 ` Frank Schäfer
2014-01-13 17:30 ` [PATCH 0/7] Fix remaining issues with em28xx device removal Antti Palosaari
2014-01-13 17:50 ` Mauro Carvalho Chehab
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