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Date: Fri, 19 Sep 2014 09:41:24 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Frank Schaefer <fschaefer.oss@...glemail.com>
Cc: Mauro Carvalho Chehab <m.chehab@...sung.com>,
linux-media@...r.kernel.org, Jet Chen <jet.chen@...el.com>,
Su Tao <tao.su@...el.com>, Yuanhan Liu <yuanhan.liu@...el.com>,
LKP <lkp@...org>, linux-kernel@...r.kernel.org
Subject: [media/em28xx] BUG: unable to handle kernel
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit a5c075cfd2386a4f3ab4f8ed2830ebee557d4b3f
Author: Frank Schaefer <fschaefer.oss@...glemail.com>
AuthorDate: Mon Mar 24 16:33:25 2014 -0300
Commit: Mauro Carvalho Chehab <m.chehab@...sung.com>
CommitDate: Fri May 23 13:44:42 2014 -0300
[media] em28xx: move fields wq_trigger and streaming_started from struct em28xx to struct em28xx_audio
Both wq_trigger and stream_started are used only to control the em28xx
alsa streaming. They don't belong to em28xx common struct.
Signed-off-by: Frank Schäfer <fschaefer.oss@...glemail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@...co.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@...sung.com>
Attached dmesg for the parent commit, too. It looks like the parent is
actually clean, just that the rcu-tortuture tests take too long time.
+------------------------------------------+------------+------------+---------------+
| | 3319e6f839 | a5c075cfd2 | next-20140917 |
+------------------------------------------+------------+------------+---------------+
| boot_successes | 0 | 0 | 0 |
| boot_failures | 80 | 20 | 11 |
| BUG:kernel_boot_hang | 80 | 1 | 1 |
| BUG:unable_to_handle_kernel | 0 | 19 | 10 |
| Oops | 0 | 19 | 10 |
| EIP_is_at_af9005_usb_module_init | 0 | 19 | 10 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 19 | 10 |
| backtrace:af9005_usb_module_init | 0 | 19 | 10 |
| backtrace:kernel_init_freeable | 0 | 19 | 10 |
| backtrace:_usb_module_init | 0 | 19 | 10 |
+------------------------------------------+------------+------------+---------------+
[ 8.528015] usbcore: registered new interface driver dvb_usb_ttusb2
[ 8.529751] usbcore: registered new interface driver dvb_usb_af9005
[ 8.529751] usbcore: registered new interface driver dvb_usb_af9005
[ 8.531584] BUG: unable to handle kernel
[ 8.531584] BUG: unable to handle kernel paging requestpaging request at 02e00000
at 02e00000
[ 8.533385] IP:
[ 8.533385] IP: [<7d9d67c6>] af9005_usb_module_init+0x6b/0x9d
[<7d9d67c6>] af9005_usb_module_init+0x6b/0x9d
[ 8.535613] *pde = 00000000
[ 8.535613] *pde = 00000000
[ 8.536416] Oops: 0000 [#1]
[ 8.536416] Oops: 0000 [#1] PREEMPT PREEMPT DEBUG_PAGEALLOCDEBUG_PAGEALLOC
[ 8.537863] CPU: 0 PID: 1 Comm: swapper Not tainted 3.15.0-rc6-00151-ga5c075c #1
[ 8.537863] CPU: 0 PID: 1 Comm: swapper Not tainted 3.15.0-rc6-00151-ga5c075c #1
[ 8.539827] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014
[ 8.539827] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014
[ 8.541519] task: 89c9a670 ti: 89c9c000 task.ti: 89c9c000
[ 8.541519] task: 89c9a670 ti: 89c9c000 task.ti: 89c9c000
[ 8.541519] EIP: 0060:[<7d9d67c6>] EFLAGS: 00010206 CPU: 0
[ 8.541519] EIP: 0060:[<7d9d67c6>] EFLAGS: 00010206 CPU: 0
[ 8.541519] EIP is at af9005_usb_module_init+0x6b/0x9d
[ 8.541519] EIP is at af9005_usb_module_init+0x6b/0x9d
[ 8.541519] EAX: 02e00000 EBX: 00000000 ECX: 00000006 EDX: 00000000
[ 8.541519] EAX: 02e00000 EBX: 00000000 ECX: 00000006 EDX: 00000000
[ 8.541519] ESI: 00000000 EDI: 7da33ec8 EBP: 89c9df30 ESP: 89c9df2c
[ 8.541519] ESI: 00000000 EDI: 7da33ec8 EBP: 89c9df30 ESP: 89c9df2c
[ 8.541519] DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068
[ 8.541519] DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068
[ 8.541519] CR0: 8005003b CR2: 02e00000 CR3: 05a54000 CR4: 00000690
[ 8.541519] CR0: 8005003b CR2: 02e00000 CR3: 05a54000 CR4: 00000690
[ 8.541519] Stack:
[ 8.541519] Stack:
[ 8.541519] 7d9d675b
[ 8.541519] 7d9d675b 89c9df90 89c9df90 7d992a49 7d992a49 7d7d5914 7d7d5914 89c9df4c 89c9df4c 7be3a800 7be3a800 7d08c58c 7d08c58c 8a4c3968 8a4c3968
[ 8.541519] 89c9df80
[ 8.541519] 89c9df80 7be3a966 7be3a966 00000192 00000192 00000006 00000006 00000006 00000006 7d7d3ff4 7d7d3ff4 8a4c397a 8a4c397a 00000200 00000200
[ 8.541519] 7d6b1280
[ 8.541519] 7d6b1280 8a4c3979 8a4c3979 00000006 00000006 000009a6 000009a6 7da32db8 7da32db8 b13eec81 b13eec81 00000006 00000006 000009a6 000009a6
[ 8.541519] Call Trace:
[ 8.541519] Call Trace:
[ 8.541519] [<7d9d675b>] ? ttusb2_driver_init+0x16/0x16
[ 8.541519] [<7d9d675b>] ? ttusb2_driver_init+0x16/0x16
[ 8.541519] [<7d992a49>] do_one_initcall+0x77/0x106
[ 8.541519] [<7d992a49>] do_one_initcall+0x77/0x106
[ 8.541519] [<7be3a800>] ? parameqn+0x2/0x35
[ 8.541519] [<7be3a800>] ? parameqn+0x2/0x35
[ 8.541519] [<7be3a966>] ? parse_args+0x113/0x25c
[ 8.541519] [<7be3a966>] ? parse_args+0x113/0x25c
[ 8.541519] [<7d992bc2>] kernel_init_freeable+0xea/0x167
[ 8.541519] [<7d992bc2>] kernel_init_freeable+0xea/0x167
[ 8.541519] [<7cf01070>] kernel_init+0x8/0xb8
[ 8.541519] [<7cf01070>] kernel_init+0x8/0xb8
[ 8.541519] [<7cf27ec0>] ret_from_kernel_thread+0x20/0x30
[ 8.541519] [<7cf27ec0>] ret_from_kernel_thread+0x20/0x30
[ 8.541519] [<7cf01068>] ? rest_init+0x10c/0x10c
[ 8.541519] [<7cf01068>] ? rest_init+0x10c/0x10c
[ 8.541519] Code:
[ 8.541519] Code: 08 08 c2 c2 c7 c7 05 05 44 44 ed ed f9 f9 7d 7d 00 00 00 00 e0 e0 02 02 c7 c7 05 05 40 40 ed ed f9 f9 7d 7d 00 00 00 00 e0 e0 02 02 c7 c7 05 05 3c 3c ed ed f9 f9 7d 7d 00 00 00 00 e0 e0 02 02 75 75 1f 1f b8 b8 00 00 00 00 e0 e0 02 02 85 85 c0 c0 74 74 16 16 <a1> <a1> 00 00 00 00 e0 e0 02 02 c7 c7 05 05 54 54 84 84 8e 8e 7d 7d 00 00 00 00 e0 e0 02 02 a3 a3 58 58 84 84 8e 8e 7d 7d eb eb
[ 8.541519] EIP: [<7d9d67c6>]
[ 8.541519] EIP: [<7d9d67c6>] af9005_usb_module_init+0x6b/0x9daf9005_usb_module_init+0x6b/0x9d SS:ESP 0068:89c9df2c
SS:ESP 0068:89c9df2c
[ 8.541519] CR2: 0000000002e00000
[ 8.541519] CR2: 0000000002e00000
[ 8.541519] ---[ end trace 768b6faf51370fc7 ]---
[ 8.541519] ---[ end trace 768b6faf51370fc7 ]---
git bisect start v3.16 v3.15 --
git bisect bad 5170a3b24a9141e2349a3420448743b7c68f2223 # 22:58 0- 1 Merge branch 'akpm' (patches from Andrew Morton)
git bisect bad 1ad96bb0a20fa26b952b2250e89d14b6397bf618 # 23:04 0- 1 Merge tag 'gpio-v3.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
git bisect bad 412dd3a6daf0cadce1b2d6a34fa3713f40255579 # 23:16 0- 1 Merge tag 'xfs-for-linus-3.16-rc1' of git://oss.sgi.com/xfs/xfs
git bisect bad b1cce8032f6abe900b078d24f3c3938726528f97 # 23:23 0- 2 Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
git bisect bad da85d191f58a44e149a7c07dbae78b3042909798 # 23:29 0- 19 Merge branch 'for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
git bisect bad f8409abdc592e13cefbe4e4a24a84b3d5741e85f # 23:38 0- 6 Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
git bisect bad ed81e780a7dd5698a986f246fad6a1d8d0b6f9ce # 23:44 0- 20 Merge branch 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad 3f17ea6dea8ba5668873afa54628a91aaa3fb1c0 # 23:55 1- 19 Merge branch 'next' (accumulated 3.16 merge window patches) into master
git bisect good 49eb7b0750d9483c74e9c14ae6ea1e9d62481c3c # 00:38 20+ 20 Merge tag 'tty-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty into next
git bisect bad 535ec214e23adaf72c775938e9e9c6c1cf6fc5b9 # 07:40 0- 2 [media] mt9p031: Fix BLC configuration restore when disabling test pattern
git bisect good 2c52a2fce0f00479548a076d900d1a2ddd001c27 # 21:01 20+ 20 [media] em28xx: move struct v4l2_clk *clk from struct em28xx to struct v4l2
git bisect bad a5c075cfd2386a4f3ab4f8ed2830ebee557d4b3f # 22:07 0- 9 [media] em28xx: move fields wq_trigger and streaming_started from struct em28xx to struct em28xx_audio
git bisect good 58159171c7f201e5d6ea2666c7b3857e782a2861 # 22:52 20+ 20 [media] em28xx: move progressive/interlaced fields from struct em28xx to struct v4l2
git bisect good 3854b0d847d558bdc820b93ae8a93c0923d0211d # 23:31 20+ 20 [media] em28xx: move tuner frequency field from struct em28xx to struct v4l2
git bisect good 3319e6f839cf94e33fbad27a21fc4c64f6cec74f # 00:14 20+ 20 [media] em28xx: remove field tuner_addr from struct em28xx
# first bad commit: [a5c075cfd2386a4f3ab4f8ed2830ebee557d4b3f] [media] em28xx: move fields wq_trigger and streaming_started from struct em28xx to struct em28xx_audio
git bisect good 3319e6f839cf94e33fbad27a21fc4c64f6cec74f # 00:55 60+ 80 [media] em28xx: remove field tuner_addr from struct em28xx
git bisect bad 76c2c6dc46fbb5bdd73571ebd0897696c5ab4d73 # 00:58 0- 11 Add linux-next specific files for 20140917
git bisect bad 4d046e96046faac456f4f5c94c152c52a9c51a3a # 01:09 2- 57 Add linux-next specific files for 20140918
This script may reproduce the error.
----------------------------------------------------------------------------
#!/bin/bash
kernel=$1
initrd=quantal-core-i386.cgz
wget --no-clobber https://github.com/fengguang/reproduce-kernel-bug/raw/master/initrd/$initrd
kvm=(
qemu-system-x86_64
-cpu kvm64
-enable-kvm
-kernel $kernel
-initrd $initrd
-m 320
-smp 2
-net nic,vlan=1,model=e1000
-net user,vlan=1
-boot order=nc
-no-reboot
-watchdog i6300esb
-rtc base=localtime
-serial stdio
-display none
-monitor null
)
append=(
hung_task_panic=1
earlyprintk=ttyS0,115200
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
console=ttyS0,115200
console=tty0
vga=normal
root=/dev/ram0
rw
drbd.minor_count=8
)
"${kvm[@]}" --append "${append[*]}"
----------------------------------------------------------------------------
Thanks,
Fengguang
View attachment "dmesg-quantal-ivb41-94:20140918220711:i386-randconfig-ib1-09172043::" of type "text/plain" (105056 bytes)
View attachment "dmesg-quantal-ivb41-16:20140919005510:i386-randconfig-ib1-09172043::" of type "text/plain" (80098 bytes)
Download attachment "i386-randconfig-ib1-09172043-76c2c6dc46fbb5bdd73571ebd0897696c5ab4d73-BUG:-unable-to-handle-kernel-13972.log" of type "application/octet-stream" (109428 bytes)
View attachment "config-3.15.0-rc6-00151-ga5c075c" of type "text/plain" (120987 bytes)
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