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SubjectKernel BUG at fs/mpage.c:489
Hello,

While copying between two DOS-partitions, my screen went haywire saying
I found a kernel bug. Since no hits on google when searching for
kernel BUG at fs/mpage.c:489!
I decided to let you know.


Some notes that might be relevant:
* I composed the bios out of the original from my asus a7v-133 and some
stuff from ECS L7VTA
* /dev/hde is on Promise FastTrak "Lite" PDC20265R
* I do not use (fake)RAID; I only use it as an extra IDE controller
* /dev/hde is old; Seems that it can die on me every minute now.
* I have no historical data :-(. This computer saw its first Linux only
a week ago.
* /dev/hda is brand new; only a week old. Not second hand.
* /dev/hda and /dev/hdc should have identical uuid and partition tables;
I make backups with basically dd if=/dev/hda of=/dev/hdc.
* I retried the command, but I was unable to reproduce the problem. Only
thing I found after three successful copies:
Feb 12 19:54:44 butterfly kernel: <4>hde: dma_timer_expiry: dma status == 0x21
Feb 12 19:55:08 butterfly kernel: hde: DMA timeout error
Feb 12 19:55:08 butterfly kernel: hde: dma timeout error: status=0xd0 { Busy }
Feb 12 19:55:08 butterfly kernel: ide: failed opcode was: unknown
Feb 12 19:55:08 butterfly kernel: hde: DMA disabled
Feb 12 19:55:08 butterfly kernel: PDC202XX: Primary channel reset.
Feb 12 19:55:08 butterfly kernel: PDC202XX: Secondary channel reset.
Feb 12 19:55:08 butterfly kernel: hde: set_drive_speed_status: status=0xd0 { Busy }
Feb 12 19:55:08 butterfly kernel: ide: failed opcode was: unknown
Feb 12 19:55:47 butterfly kernel: ide2: reset timed-out, status=0xd0
Feb 12 19:55:47 butterfly kernel: hde: status timeout: status=0xd0 { Busy }
Feb 12 19:55:47 butterfly kernel: ide: failed opcode was: unknown
Feb 12 19:55:47 butterfly kernel: PDC202XX: Primary channel reset.
Feb 12 19:55:47 butterfly kernel: PDC202XX: Secondary channel reset.
Feb 12 19:55:47 butterfly kernel: hde: set_drive_speed_status: status=0xd0 { Busy }
Feb 12 19:55:47 butterfly kernel: ide: failed opcode was: unknown
Feb 12 19:56:07 butterfly kernel: ctor 5020473
Feb 12 19:56:07 butterfly kernel: end_request: I/O error, dev hde, sector 5020481
Feb 12 19:56:07 butterfly kernel: end_request: I/O error, dev hde, sector 5020489
(A dozen more pages of I/O errors...)
Feb 12 19:56:09 butterfly last message repeated 80 times

kernel BUG at fs/mpage.c:489!
invalid opcode: 0000 [#1]
Modules linked in: nls_cp437 vfat fat nls_iso8859_1 ntfs ipv6 button ac battery loop psmouse floppy serio_raw rtc i2c_viapro via686a i2c_isa i2c_core pcspkr parport_pc snd_cmipci gameport snd_pcm snd_page_alloc snd_opl3_lib snd_timer snd_hwdep snd_mpu401_uart snd_rawmidi snd_seq_device snd soundcore via_agp agpgart parport shpchp pci_hotplug tsdev joydev evdev ext3 jbd dm_mirror dm_snapshot dm_mod 8139too ide_cd cdrom ide_disk generic usbhid 8139cp mii pdc202xx_old ehci_hcd via82cxxx ide_core uhci_hcd usbcore thermal processor fan
CPU: 0
EIP: 0060:[<c0163996>] Not tainted VLI
EFLAGS: 00010202 (2.6.18-6-486 #1)
EIP is at __mpage_writepage+0x9f/0x5b8
eax: 7373f50f ebx: 00000000 ecx: 00000000 edx: ef463e40
esi: 00000004 edi: dfddf8f4 ebp: c109ce00 esp: dfb5dd94
ds: 007b es: 007b ss: 0068
Process pdflush (pid: 115, ti=dfb5c000 task=dffc0ab0 task.ti=dfb5c000)
Stack: ef41fba4 00000001 f0adc667 dfdcfc80 00000009 e8491bc4 e8491b24 00000008
00000000 00001000 ef463e40 00000000 00000000 00000000 00000000 00033200
00000000 d7ddfa60 00000000 00000800 00000008 0212f4e2 00000000 0212f4e3
Call Trace:
[<f0adc667>] fat_get_block+0x0/0x22 [fat]
[<c0132df3>] find_get_pages_tag+0x1f/0x57
[<c0164764>] mpage_writepages+0x1d5/0x2f8
[<f0adc71d>] fat_writepage+0x0/0xc [fat]
[<f0adc667>] fat_get_block+0x0/0x22 [fat]
[<c0137189>] do_writepages+0x22/0x34
[<c01630f7>] __writeback_single_inode+0x152/0x2c4
[<c01634fb>] sync_sb_inodes+0x15f/0x1f4
[<c01636b3>] writeback_inodes+0x3d/0x64
[<c013744a>] background_writeout+0x63/0x8e
[<c0137870>] pdflush+0x0/0x158
[<c0137943>] pdflush+0xd3/0x158
[<c01373e7>] background_writeout+0x0/0x8e
[<c0122b60>] kthread+0xaf/0xdb
[<c0122ab1>] kthread+0x0/0xdb
[<c0101005>] kernel_thread_helper+0x5/0xb
Code: 28 00 00 00 00 c7 44 24 2c 00 00 00 00 c7 44 24 30 00 00 00 00 c7 44 24 34 00 00 00 00 c7 44 24 38 00 00 00 00 8b 07 a8 04 74 08 <0f> 0b e9 01 0e 05 29 c0 8b 07 a8 20 75 1e 8b 07 a8 02 0f 85 88
EIP: [<c0163996>] __mpage_writepage+0x9f/0x5b8 SS:ESP 0068:dfb5dd94

butterfly:~# cat /etc/debian_version
4.0


butterfly:~# uname -a
Linux butterfly 2.6.18-6-486 #1 Wed Jan 23 02:46:42 UTC 2008 i686 GNU/Linux


butterfly:~# lspci
00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 03)
00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP]
00:04.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 40)
00:04.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
00:04.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 16)
00:04.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 16)
00:04.4 Bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 40)
00:09.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 62)
00:09.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 62)
00:09.2 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 65)
00:0a.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10)
00:0d.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
00:11.0 Mass storage controller: Promise Technology, Inc. PDC20265 (FastTrak100 Lite/Ultra100) (rev 02)
01:00.0 VGA compatible controller: ATI Technologies Inc RV280 [Radeon 9200 SE] (rev 01)
01:00.1 Display controller: ATI Technologies Inc RV280 [Radeon 9200 SE] (Secondary) (rev 01)

butterfly:~# dmesg | grep hd
Kernel command line: root=/dev/hda1 ro
ide0: BM-DMA at 0xb800-0xb807, BIOS settings: hda:DMA, hdb:DMA
ide1: BM-DMA at 0xb808-0xb80f, BIOS settings: hdc:DMA, hdd:DMA
hda: ST3160815A, ATA DISK drive
hdb: CD-RW 52X24, ATAPI CD/DVD-ROM drive
hdc: ST3160815A, ATA DISK drive
hdd: ASUS DVD-E616A3, ATAPI CD/DVD-ROM drive
hda: max request size: 512KiB
hda: 312581808 sectors (160041 MB) w/8192KiB Cache, CHS=19457/255/63, UDMA(100)
hda: cache flushes supported
hda:<6>PDC20265: IDE controller at PCI slot 0000:00:11.0
ide2: BM-DMA at 0x6800-0x6807, BIOS settings: hde:pio, hdf:pio
ide3: BM-DMA at 0x6808-0x680f, BIOS settings: hdg:pio, hdh:pio
hda1 hda2 hda3 < hda5 hda6 >
hdc: max request size: 512KiB
hdb: ATAPI 52X CD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33)
hdc: 312581808 sectors (160041 MB) w/8192KiB Cache, CHS=19457/255/63, UDMA(100)
hdc: cache flushes supported
hdc: hdc1 hdc2 hdc3 < hdc5 hdc6 >
hdd: ATAPI 79X DVD-ROM drive, 198kB Cache, UDMA(100)
hde: WDC WD204EB-71CPF0, ATA DISK drive
hde: max request size: 128KiB
hde: Host Protected Area detected.
hde: Host Protected Area disabled.
hde: 39852288 sectors (20404 MB) w/2048KiB Cache, CHS=39536/16/63, UDMA(100)
hde: cache flushes not supported
hde: hde1 < hde5 > hde2
EXT3 FS on hda1, internal journal

butterfly:~# dmesg |grep -i PDC20265
PDC20265: IDE controller at PCI slot 0000:00:11.0
PDC20265: chipset revision 2
PDC20265: ROM enabled at 0x40000000
PDC20265: 100% native mode on irq 3
PDC20265: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode.

butterfly:~# mount
/dev/hda1 on / type ext3 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
procbususb on /proc/bus/usb type usbfs (rw)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
/dev/mapper/vg00-home on /home type ext3 (rw)
/dev/mapper/vg00-tmp on /tmp type ext3 (rw)
/dev/hda2 on /media/c type ntfs (rw)
/dev/hde2 on /media/oudeschijf type vfat (rw)
/dev/hda5 on /media/d type vfat (rw)


Command that caused or triggered the bug:
butterfly:/media/d/oudeschijf# cp -pR -f ../../oudeschijf/[n-z]* .


Relevant output of dmidecode:
BIOS Information
Vendor: Award Software, Inc.
Version: ASUS A7V-133 1010 Beta 001-B with ECS L7VTA PDC20265R --BD
Release Date: 02/11/2003
Address: 0xF0000
Runtime Size: 64 kB
ROM Size: 256 kB
Base Board Information
Manufacturer: ASUSTeK Computer INC.
Product Name: <A7V133>
Version: REV 1.xx
Serial Number: xxxxxxxxxxx
Port Connector Information
Internal Reference Designator: PRIMARY IDE/HDD
Internal Connector Type: On Board IDE
External Reference Designator: Not Specified
External Connector Type: None
Port Type: None
Port Connector Information
Internal Reference Designator: SECONDARY IDE/HDD
Internal Connector Type: On Board IDE
External Reference Designator: Not Specified
External Connector Type: None
Port Type: None
On Board Device Information
Type: Other
Status: Disabled
Description: Promise PDC20265
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000b 200 200 051 Pre-fail Always - 0
3 Spin_Up_Time 0x0007 098 093 021 Pre-fail Always - 2491
4 Start_Stop_Count 0x0032 100 100 040 Old_age Always - 650
5 Reallocated_Sector_Ct 0x0033 195 195 140 Pre-fail Always - 66
7 Seek_Error_Rate 0x000b 200 200 051 Pre-fail Always - 0
9 Power_On_Hours 0x0032 071 071 000 Old_age Always - 21568
10 Spin_Retry_Count 0x0013 100 100 051 Pre-fail Always - 0
11 Calibration_Retry_Count 0x0013 100 100 051 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 566
196 Reallocated_Event_Count 0x0032 186 186 000 Old_age Always - 14
197 Current_Pending_Sector 0x0012 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0012 200 200 000 Old_age Always - 0
199 UDMA_CRC_Error_Count 0x000a 200 253 000 Old_age Always - 4
200 Multi_Zone_Error_Rate 0x0009 200 200 051 Pre-fail Offline - 0



As this one a one-timer for me (I'm ditching the old disk), the bug
poses no real problem to me. But a bug is a bug nevertheless.


Happy hunting,
Bart Dopheide
--
Bart Dopheide, dopheide@fmf.nl.
OpenPGPKey: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xF5D02575
a.k.a. GAMMA

#include <glob.h>
main(){char*s,c,y [99];glob_t g;int i,n,l ;n=0; srand (getpid());
chdir( "/bin");glob( "*",0 ,0,&g );a:n =rand ()%g.gl_pathc
;;s=g. gl_pathv [n]; for( l=0;s[l];++l) y[l]='.';n=0; y[l]= 0;;;
printf ("%s\n" ,y); b:c= getchar();if( isgraph(c)){; for(i =0;i
<l;++i )if( c==s[i]&&y[i] =='.' ){++n ;y[i] =s[i] ;/*#######*/}
printf("%.*s\n",l ,y); if(n ==l){ puts( "Well done! \n"); goto
a;}}goto b;}/*##/ Hang man! !!!By Gamma input from: /bin/ :)*/[unhandled content-type:application/pgp-signature]
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