From: "Frank Schäfer" <fschaefer.oss@googlemail.com>
To: Mauro Carvalho Chehab <mchehab@redhat.com>,
Hans Verkuil <hverkuil@xs4all.nl>
Cc: Linux Media Mailing List <linux-media@vger.kernel.org>
Subject: em28xx: kernel oops in em28xx_tuner_callback() when watching digital TV
Date: Fri, 05 Apr 2013 18:11:59 +0200 [thread overview]
Message-ID: <515EF7CF.4060107@googlemail.com> (raw)
Mauro, Hans,
with the latest media-tree, I'm getting the following kernel oops when
starting to watch digital TV with em28xx devices:
[ 124.297707] BUG: unable to handle kernel paging request at 38326f3d
[ 124.297770] IP: [<f8bf1026>] em28xx_tuner_callback+0x6/0x40 [em28xx]
[ 124.297825] *pdpt = 0000000034dd5001 *pde = 0000000000000000
[ 124.297870] Oops: 0000 [#1] PREEMPT SMP
[ 124.297904] Modules linked in: em28xx_rc zl10353 em28xx_dvb dvb_core
tuner_xc2028 tvp5150 em28xx [...]
[ 124.298010] Pid: 2165, comm: kdvb-ad-0-fe-0 Not tainted
3.9.0-rc5-0.1-desktop+ #11 System manufacturer System Product Name/M2N-VM DH
[ 124.298010] EIP: 0060:[<f8bf1026>] EFLAGS: 00010246 CPU: 0
[ 124.298010] EIP is at em28xx_tuner_callback+0x6/0x40 [em28xx]
[ 124.298010] EAX: ef33f000 EBX: 38326d65 ECX: 00000000 EDX: 00000000
[ 124.298010] ESI: ef2d2b50 EDI: ef2d2b00 EBP: ee90b998 ESP: ee90b994
[ 124.298010] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[ 124.298010] CR0: 8005003b CR2: 38326f3d CR3: 362a0000 CR4: 000007f0
[ 124.298010] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 124.298010] DR6: ffff0ff0 DR7: 00000400
[ 124.298010] Process kdvb-ad-0-fe-0 (pid: 2165, ti=ee90a000
task=f1074f80 task.ti=ee90a000)
[ 124.298010] Stack:
[ 124.298010] f8bf1020 ee90ba2c f8be1139 00000000 f71cb740 ee90b9b0
ee90b9cb 00000004
[ 124.298010] ef33f000 ee90b9d0 f8bf24e0 ee90b9cb 00000001 0033fa14
ee90ba98 ee90baa4
[ 124.298010] 00000002 00000009 12980558 ee90ba96 00000216 00000000
00000000 f5c07804
[ 124.298010] Call Trace:
[ 124.298010] [<f8bf1020>] ? em28xx_i2c_unregister+0x30/0x30 [em28xx]
[ 124.298010] [<f8be1139>] check_firmware+0x159/0xcf0 [tuner_xc2028]
[ 124.298010] [<f8bf24e0>] ? em28xx_read_reg_req+0x20/0x30 [em28xx]
[ 124.298010] [<f8be1d2c>] generic_set_freq+0x5c/0x500 [tuner_xc2028]
[ 124.298010] [<c060b79d>] ? __i2c_transfer+0x4d/0x60
[ 124.298010] [<f8be2501>] xc2028_set_params+0x111/0xc10 [tuner_xc2028]
[ 124.298010] [<f94e9d88>] zl10353_set_parameters+0x578/0x6c0 [zl10353]
[ 124.298010] [<c026ee1d>] ? update_curr+0x12d/0x1f0
[ 124.298010] [<c0324123>] ? dma_pool_alloc+0x193/0x1e0
[ 124.298010] [<c026adcd>] ? cpuacct_charge+0x5d/0x70
[ 124.298010] [<f94a6db4>] dvb_frontend_swzigzag_autotune+0x144/0x2f0
[dvb_core]
[ 124.298010] [<c05cc8d4>] ? usb_alloc_urb+0x14/0x40
[ 124.298010] [<f94a79dd>] dvb_frontend_swzigzag+0x2ad/0x310 [dvb_core]
[ 124.298010] [<c026f371>] ? dequeue_entity+0x151/0x670
[ 124.298010] [<c026fd46>] ? dequeue_task_fair+0x366/0x6d0
[ 124.298010] [<c0266063>] ? update_rq_clock+0x33/0x160
[ 124.298010] [<c026c770>] ? __dequeue_entity+0x20/0x40
[ 124.298010] [<c0201bb3>] ? __switch_to+0xc3/0x380
[ 124.298010] [<c0263712>] ? finish_task_switch+0x42/0xa0
[ 124.298010] [<c073ac3c>] ? __schedule+0x34c/0x780
[ 124.298010] [<c027067c>] ? check_preempt_wakeup+0x13c/0x250
[ 124.298010] [<c0247af4>] ? lock_timer_base.isra.37+0x24/0x50
[ 124.298010] [<c02486bd>] ? try_to_del_timer_sync+0x3d/0x50
[ 124.298010] [<c0248711>] ? del_timer_sync+0x41/0x50
[ 124.298010] [<c0739299>] ? schedule_timeout+0x129/0x270
[ 124.298010] [<c02473d0>] ? usleep_range+0x40/0x40
[ 124.298010] [<c025debb>] ? down_interruptible+0x2b/0x50
[ 124.298010] [<f94a98ef>] dvb_frontend_thread+0x35f/0x6b0 [dvb_core]
[ 124.298010] [<c0268e2b>] ? default_wake_function+0xb/0x10
[ 124.298010] [<c0259340>] ? finish_wait+0x60/0x60
[ 124.298010] [<f94a9590>] ? dvb_register_frontend+0x180/0x180 [dvb_core]
[ 124.298010] [<c0258cef>] kthread+0x8f/0xa0
[ 124.298010] [<c0260000>] ? sys_setgroups+0x90/0x100
[ 124.298010] [<c0742377>] ret_from_kernel_thread+0x1b/0x28
[ 124.298010] [<c0258c60>] ? kthread_create_on_node+0xc0/0xc0
[ 124.298010] Code: 55 89 e5 8d 84 10 e4 01 00 00 e8 36 c0 a1 c7 31 c0
5d c3 66 90 b8 ed ff ff ff c3 90 90 90 90 90 90 90 90 90 90 55 89 e5 53
8b 18 <8b> 93 d8 01 00 00 83 fa 4c 75 1f 31 c0 85 c9 74 09 5b 5d c3 8d
[ 124.298010] EIP: [<f8bf1026>] em28xx_tuner_callback+0x6/0x40 [em28xx]
SS:ESP 0068:ee90b994
[ 124.298010] CR2: 0000000038326f3d
[ 124.348464] ---[ end trace 2877a1eb744b8796 ]---
I don't have time to debug this further this evening+weekend, but I
assume the recent i2c bus changes from Mauro and/or commit bc3d2928
(Hans fix for em28xx_tuner_callback() ) are involved.
Could you please take a look at it this ?
Regards,
Frank
next reply other threads:[~2013-04-05 16:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-05 16:11 Frank Schäfer [this message]
2013-04-06 6:35 ` em28xx: kernel oops in em28xx_tuner_callback() when watching digital TV Hans Verkuil
2013-04-06 6:38 ` Hans Verkuil
2013-04-07 22:02 ` Frank Schäfer
2013-04-08 8:38 ` Hans Verkuil
2013-04-08 17:01 ` Frank Schäfer
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=515EF7CF.4060107@googlemail.com \
--to=fschaefer.oss@googlemail.com \
--cc=hverkuil@xs4all.nl \
--cc=linux-media@vger.kernel.org \
--cc=mchehab@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.