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Date: Sun, 12 Dec 2010 16:45:05 +0800
From: Dave Young <hidave.darkstar@...il.com>
To: Chris Clayton <chris2553@...glemail.com>
Cc: LKML <linux-kernel@...r.kernel.org>,
Guennadi Liakhovetski <g.liakhovetski@....de>,
linux-media@...r.kernel.org
Subject: Re: Oops in 2.6.37-rc{3,4,5}
On Fri, Dec 10, 2010 at 10:34:06PM +0000, Chris Clayton wrote:
> I'm not subscribed, so please cc me on any reply.
>
> With rc kernels from 2.6.37, X frequently (approx 3 boots out of every 4) fails
> to start. dmesg shows the oops below. I can bisect over the weekend - probably
> Sunday - if no answer comes up in the meantime. I get the same oops with rc3,
> rc and rc5. rc2 doesn't get as far as trying to start X. Happy to test patches
> or provide additional diagnostics, but I'll be off line soon until 20:00 or so
> UK time tomorrow.
>
> The hardware in my system is:
> 00:00.0 Host bridge: Intel Corporation 4 Series Chipset DRAM Controller (rev 03)
> 00:02.0 VGA compatible controller: Intel Corporation 4 Series Chipset Integrated
> Graphics Controller (rev 03)
> 00:02.1 Display controller: Intel Corporation 4 Series Chipset Integrated
> Graphics Controller (rev 03)
> 00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition
> Audio Controller (rev 01)
> 00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1
> (rev 01)
> 00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2
> (rev 01)
> 00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
> Controller #1 (rev 01)
> 00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
> Controller #2 (rev 01)
> 00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
> Controller #3 (rev 01)
> 00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
> Controller #4 (rev 01)
> 00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI
> Controller (rev 01)
> 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1)
> 00:1f.0 ISA bridge: Intel Corporation 82801GB/GR (ICH7 Family) LPC Interface
> Bridge (rev 01)
> 00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller
> (rev 01)
> 00:1f.2 IDE interface: Intel Corporation 82801GB/GR/GH (ICH7 Family) SATA IDE
> Controller (rev 01)
> 00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01)
> 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI
> Express Gigabit Ethernet controller (rev 02)
> 03:00.0 Multimedia controller: Philips Semiconductors SAA7131/SAA7133/SAA7135
> Video Broadcast Decoder (rev d1)
> 03:01.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture
> (rev 11)
> 03:01.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev
> 11)
> 03:07.0 FireWire (IEEE 1394): Texas Instruments TSB43AB23 IEEE-1394a-2000
> Controller (PHY/Link)
>
> ==================OOPS==============================
> <snip>
>
> [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
> BUG: unable to handle kernel NULL pointer dereference at (null)
> IP: [<c13229ef>] __mutex_lock_slowpath+0x9f/0x170
> *pdpt = 0000000034676001 *pde = 0000000000000000
> Oops: 0002 [#1] PREEMPT SMP
> last sysfs file: /sys/module/drm_kms_helper/initstate
> Modules linked in: i915 drm_kms_helper drm fb fbdev cfbcopyarea video backlight
> output cfbimgblt cfbfillrect xt_state iptable_filter ipt_MASQUERADE iptable_nat
> nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 saa7134_alsa tda10048
> saa7134_dvb videobuf_dvb dvb_core mt20xx tea5767 tda9887 msp3400 gspca_zc3xx
> gspca_main tda18271 tda8290 ir_lirc_codec tuner lirc_dev bttv i2c_algo_bit
> btcx_risc snd_bt87x ir_common uhci_hcd ir_core saa7134 v4l2_common videodev
> v4l1_compat ehci_hcd videobuf_dma_sg videobuf_core tveeprom evdev [last
> unloaded: floppy]
>
> Pid: 1725, comm: X Not tainted 2.6.37-rc5+ #476 EG41MF-US2H/EG41MF-US2H
> EIP: 0060:[<c13229ef>] EFLAGS: 00013246 CPU: 3
> EIP is at __mutex_lock_slowpath+0x9f/0x170
> EAX: 00000000 EBX: f4403410 ECX: f4403420 EDX: f4641dd8
> ESI: f4403414 EDI: 00000000 EBP: f4403418 ESP: f4641dd4
> DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
> Process X (pid: 1725, ti=f4640000 task=f3c67390 task.ti=f4640000)
> Stack:
> f3c67390 f4403418 00000000 f46a3800 f4403410 f4fd14f0 f425f600 f4403400
> c13228a6 f4fd1000 f4fd14f0 f8841b6c c10aabb2 ffffffff 05100004 f4c34000
> f4df72c0 c10aabf7 f4403410 00000001 f425f600 ffffffed f425f604 f46bfe40
> Call Trace:
> [<c13228a6>] ? mutex_lock+0x16/0x30
> [<f8841b6c>] ? bttv_open+0xac/0x280 [bttv]
> [<c10aabb2>] ? cdev_get+0x52/0x90
> [<c10aabf7>] ? exact_lock+0x7/0x10
> [<f87095a7>] ? v4l2_open+0xb7/0xd0 [videodev]
> [<c10ab2ea>] ? chrdev_open+0xda/0x1b0
> [<c10a5f25>] ? __dentry_open+0xd5/0x280
> [<c10a7068>] ? nameidata_to_filp+0x68/0x70
> [<c10ab210>] ? chrdev_open+0x0/0x1b0
> [<c10b351f>] ? do_last.clone.32+0x34f/0x5a0
> [<c10b3af3>] ? do_filp_open+0x383/0x550
> [<c10b1e58>] ? getname+0x28/0xf0
> [<c10a70c8>] ? do_sys_open+0x58/0x110
> [<c10a5d09>] ? filp_close+0x49/0x70
> [<c10a71ac>] ? sys_open+0x2c/0x40
> [<c1002d10>] ? sysenter_do_call+0x12/0x26
> [<c1320000>] ? timer_cpu_notify+0x1b4/0x233
> Code: 83 78 18 63 7f b6 8d b6 00 00 00 00 8d 73 04 8d 6b 08 89 f0 e8 f3 10 00 00
> 8b 43 0c 8d 54 24 04 89 44 24 08 89 53 0c 89 6c 24 04 <89> 10 8b 04 24 ba ff ff
> ff ff 89 44 24 0c 89 d0 87 03 83 f8 01
> EIP: [<c13229ef>] __mutex_lock_slowpath+0x9f/0x170 SS:ESP 0068:f4641dd4
> CR2: 0000000000000000
> ---[ end trace 5ac4e44ad0dc7959 ]---
> note: X[1725] exited with preempt_count 2
> BUG: scheduling while atomic: X/1725/0x10000003
> Modules linked in: i915 drm_kms_helper drm fb fbdev cfbcopyarea video backlight
> output cfbimgblt cfbfillrect xt_state iptable_filter ipt_MASQUERADE iptable_nat
> nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 saa7134_alsa tda10048
> saa7134_dvb videobuf_dvb dvb_core mt20xx tea5767 tda9887 msp3400 gspca_zc3xx
> gspca_main tda18271 tda8290 ir_lirc_codec tuner lirc_dev bttv i2c_algo_bit
> btcx_risc snd_bt87x ir_common uhci_hcd ir_core saa7134 v4l2_common videodev
> v4l1_compat ehci_hcd videobuf_dma_sg videobuf_core tveeprom evdev [last
> unloaded: floppy]
> Pid: 1725, comm: X Tainted: G D 2.6.37-rc5+ #476
> Call Trace:
> [<c1321f5d>] ? schedule+0x56d/0x8a0
> [<c1038656>] ? walk_system_ram_range+0xb6/0x1b0
> [<c10230d1>] ? free_memtype+0x151/0x1d0
> [<c10230d1>] ? free_memtype+0x151/0x1d0
> [<c1038766>] ? page_is_ram+0x16/0x30
> [<c1037560>] ? __is_ram+0x0/0x10
> [<c10228c3>] ? pat_pagerange_is_ram+0x73/0xa0
> [<c102cb43>] ? __cond_resched+0x13/0x30
> [<c1322340>] ? _cond_resched+0x20/0x30
> [<c10901b9>] ? unmap_vmas+0x659/0x7f0
> [<c11533ce>] ? vsnprintf+0x2ce/0x390
> [<c10963ea>] ? exit_mmap+0xca/0x180
> [<c102fa1e>] ? mmput+0x1e/0xa0
> [<c10339cc>] ? exit_mm+0xec/0x120
> [<c1067c62>] ? acct_collect+0x82/0x160
> [<c103525e>] ? do_exit+0x55e/0x6d0
> [<c1006554>] ? oops_end+0x84/0xc0
> [<c101fc40>] ? no_context+0xc0/0x190
> [<c101fe5f>] ? bad_area_nosemaphore+0xf/0x20
> [<c102027e>] ? do_page_fault+0x25e/0x400
> [<c102c2c9>] ? load_balance+0x99/0x670
> [<c1009bf4>] ? __switch_to_xtra+0xf4/0x120
> [<c1001cca>] ? __switch_to+0x1ba/0x1e0
> [<c1020020>] ? do_page_fault+0x0/0x400
> [<c132484e>] ? error_code+0x5a/0x60
> [<c1020020>] ? do_page_fault+0x0/0x400
> [<c13229ef>] ? __mutex_lock_slowpath+0x9f/0x170
> [<c13228a6>] ? mutex_lock+0x16/0x30
> [<f8841b6c>] ? bttv_open+0xac/0x280 [bttv]
> [<c10aabb2>] ? cdev_get+0x52/0x90
> [<c10aabf7>] ? exact_lock+0x7/0x10
> [<f87095a7>] ? v4l2_open+0xb7/0xd0 [videodev]
> [<c10ab2ea>] ? chrdev_open+0xda/0x1b0
> [<c10a5f25>] ? __dentry_open+0xd5/0x280
> [<c10a7068>] ? nameidata_to_filp+0x68/0x70
> [<c10ab210>] ? chrdev_open+0x0/0x1b0
> [<c10b351f>] ? do_last.clone.32+0x34f/0x5a0
> [<c10b3af3>] ? do_filp_open+0x383/0x550
> [<c10b1e58>] ? getname+0x28/0xf0
> [<c10a70c8>] ? do_sys_open+0x58/0x110
> [<c10a5d09>] ? filp_close+0x49/0x70
> [<c10a71ac>] ? sys_open+0x2c/0x40
> [<c1002d10>] ? sysenter_do_call+0x12/0x26
> [<c1320000>] ? timer_cpu_notify+0x1b4/0x233
> BUG: scheduling while atomic: X/1725/0x10000003
> Modules linked in: i915 drm_kms_helper drm fb fbdev cfbcopyarea video backlight
> output cfbimgblt cfbfillrect xt_state iptable_filter ipt_MASQUERADE iptable_nat
> nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 saa7134_alsa tda10048
> saa7134_dvb videobuf_dvb dvb_core mt20xx tea5767 tda9887 msp3400 gspca_zc3xx
> gspca_main tda18271 tda8290 ir_lirc_codec tuner lirc_dev bttv i2c_algo_bit
> btcx_risc snd_bt87x ir_common uhci_hcd ir_core saa7134 v4l2_common videodev
> v4l1_compat ehci_hcd videobuf_dma_sg videobuf_core tveeprom evdev [last
> unloaded: floppy]
> Pid: 1725, comm: X Tainted: G D 2.6.37-rc5+ #476
> Call Trace:
> [<c1321f5d>] ? schedule+0x56d/0x8a0
> [<c10b83f0>] ? d_kill+0x40/0x50
> [<c10b89aa>] ? dput+0x5a/0x100
> [<c10a918f>] ? fput+0x12f/0x200
> [<c102cb43>] ? __cond_resched+0x13/0x30
> [<c1322340>] ? _cond_resched+0x20/0x30
> [<c1034bef>] ? put_files_struct+0x7f/0xd0
> [<c1035271>] ? do_exit+0x571/0x6d0
> [<c1006554>] ? oops_end+0x84/0xc0
> [<c101fc40>] ? no_context+0xc0/0x190
> [<c101fe5f>] ? bad_area_nosemaphore+0xf/0x20
> [<c102027e>] ? do_page_fault+0x25e/0x400
> [<c102c2c9>] ? load_balance+0x99/0x670
> [<c1009bf4>] ? __switch_to_xtra+0xf4/0x120
> [<c1001cca>] ? __switch_to+0x1ba/0x1e0
> [<c1020020>] ? do_page_fault+0x0/0x400
> [<c132484e>] ? error_code+0x5a/0x60
> [<c1020020>] ? do_page_fault+0x0/0x400
> [<c13229ef>] ? __mutex_lock_slowpath+0x9f/0x170
> [<c13228a6>] ? mutex_lock+0x16/0x30
> [<f8841b6c>] ? bttv_open+0xac/0x280 [bttv]
> [<c10aabb2>] ? cdev_get+0x52/0x90
> [<c10aabf7>] ? exact_lock+0x7/0x10
> [<f87095a7>] ? v4l2_open+0xb7/0xd0 [videodev]
> [<c10ab2ea>] ? chrdev_open+0xda/0x1b0
> [<c10a5f25>] ? __dentry_open+0xd5/0x280
> [<c10a7068>] ? nameidata_to_filp+0x68/0x70
> [<c10ab210>] ? chrdev_open+0x0/0x1b0
> [<c10b351f>] ? do_last.clone.32+0x34f/0x5a0
> [<c10b3af3>] ? do_filp_open+0x383/0x550
> [<c10b1e58>] ? getname+0x28/0xf0
> [<c10a70c8>] ? do_sys_open+0x58/0x110
> [<c10a5d09>] ? filp_close+0x49/0x70
> [<c10a71ac>] ? sys_open+0x2c/0x40
> [<c1002d10>] ? sysenter_do_call+0x12/0x26
> [<c1320000>] ? timer_cpu_notify+0x1b4/0x233
>
Could you try following patch?
--- linux-2.6.orig/drivers/media/video/bt8xx/bttv-driver.c 2010-11-27 11:21:30.000000000 +0800
+++ linux-2.6/drivers/media/video/bt8xx/bttv-driver.c 2010-12-12 16:31:39.633333338 +0800
@@ -3291,6 +3291,8 @@ static int bttv_open(struct file *file)
fh = kmalloc(sizeof(*fh), GFP_KERNEL);
if (unlikely(!fh))
return -ENOMEM;
+
+ mutex_init(&fh->cap.vb_lock);
file->private_data = fh;
/*
--
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