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Go Back   Linux Archive > Debian > Debian Kernel

 
 
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Old 07-01-2012, 10:14 PM
Imran Chaudhry
 
Default Bug#679830: linux-image-2.6.32-5-686: Kernel bug observed in syslog when performing an rsync operation.

Package: linux-2.6
Version: 2.6.32-45
Severity: normal

Kernel bug observed in syslog when performing an rsync operation. I use rsnapshot and I believe an rsnapshot operation "conflicted" or "interfered" somehow with my manual rsync command. The source and destination are USB HDDs with ext4 filesystems. After the kernel bug was observed I discovered the source filesystem had a corrupt filesystem. If it is relevant I was using the rsync command with --hard-links and I also observed messages of this sort: "[1075483.039915] EXT4-fs error (device sdb1): htree_dirblock_to_tree: bad entry in directory #7143723: directory entry across blocks - block=34323866offset=0(0), inode=135151872, rec_len=66180, name_len=66" and "Jul 1 06:33:06 altair kernel: [1075335.376996] EXT4-fs error (device sdb1): ext4_lookup: deleted inode referenced: 8954048".

Relevant kernel log trace with bug:
Jul 1 05:37:53 altair kernel: [1072022.349172] ------------[ cut here ]------------
Jul 1 05:37:53 altair kernel: [1072022.352027] kernel BUG at /build/buildd-linux-2.6_2.6.32-45-i386-yQfQSv/linux-2.6-2.6.32/debian/build/source_i386_none/fs/ext4/extents.c:1873!
Jul 1 05:37:53 altair kernel: [1072022.352027] invalid opcode: 0000 [#1] SMP
Jul 1 05:37:53 altair kernel: [1072022.352027] last sysfs file: /sys/devices/pci0000:00/0000:00:1e.0/0000:02:09.1/usb4/4-0:1.0/bInterfaceProtocol
Jul 1 05:37:53 altair kernel: [1072022.352027] Modules linked in: xt_multiport iptable_filter ip_tables x_tables fuse nfsd exportfs nfs lockd fscache nfs_acl auth_rpcgss sunrpc ext4 jbd2 crc16 loop raid1 md_mod snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm i2c_i801 snd_timer shpchp snd psmouse evdev soundcore parport_pc parport serio_raw i2c_core snd_page_alloc pcspkr pci_hotplug rng_core processor button ext3 jbd mbcache usb_storage sd_mod crc_t10dif ata_generic ata_piix uhci_hcd e100 libata ehci_hcd thermal floppy r8169 mii usbcore nls_base scsi_mod thermal_sys [last unloaded: scsi_wait_scan]
Jul 1 05:37:53 altair kernel: [1072022.352027]
Jul 1 05:37:53 altair kernel: [1072022.352027] Pid: 31553, comm: rsync Not tainted (2.6.32-5-686 #1) Deskpro
Jul 1 05:37:53 altair kernel: [1072022.352027] EIP: 0060:[<e0ea5b00>] EFLAGS: 00010246 CPU: 0
Jul 1 05:37:53 altair kernel: [1072022.352027] EIP is at ext4_ext_get_blocks+0x286/0x1916 [ext4]
Jul 1 05:37:53 altair kernel: [1072022.352027] EAX: 00000000 EBX: 00000000 ECX: 00000000 EDX: 00000000
Jul 1 05:37:53 altair kernel: [1072022.352027] ESI: 00000000 EDI: db1216f4 EBP: 00000000 ESP: dfad7ad0
Jul 1 05:37:53 altair kernel: [1072022.352027] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Jul 1 05:37:53 altair kernel: [1072022.352027] Process rsync (pid: 31553, ti=dfad6000 task=df88fb80 task.ti=dfad6000)
Jul 1 05:37:53 altair kernel: [1072022.352027] Stack:
Jul 1 05:37:53 altair kernel: [1072022.352027] dfad7ad0 00000286 c163a2e0 00000000 c01f1198 00000000 dcf2a800 cb297a80
Jul 1 05:37:53 altair kernel: [1072022.352027] <0> db071000 00000000 00000000 00000001 00000000 00000000 c01f1110 00003ef0
Jul 1 05:37:53 altair kernel: [1072022.352027] <0> 00000000 c01f135c c01f135c c01f1110 00000000 00000000 c01f1198 e0ea59e6
Jul 1 05:37:53 altair kernel: [1072022.352027] Call Trace:
Jul 1 05:37:53 altair kernel: [1072022.352027] [<e0ea59e6>] ? ext4_ext_get_blocks+0x16c/0x1916 [ext4]
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c1035c5d>] ? irq_exit+0x36/0x58
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c10144d5>] ? smp_apic_timer_interrupt+0x6c/0x76
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c1003b35>] ? apic_timer_interrupt+0x31/0x38
Jul 1 05:37:53 altair kernel: [1072022.352027] [<e0ea5942>] ? ext4_ext_get_blocks+0xc8/0x1916 [ext4]
Jul 1 05:37:53 altair kernel: [1072022.352027] [<e0e8cba1>] ? ext4_get_blocks+0x63/0x22f [ext4]
Jul 1 05:37:53 altair kernel: [1072022.352027] [<e0e8e1ee>] ? ext4_get_block+0x95/0xc9 [ext4]
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c10d0590>] ? block_read_full_page+0x15a/0x26e
Jul 1 05:37:53 altair kernel: [1072022.352027] [<e0e8e159>] ? ext4_get_block+0x0/0xc9 [ext4]
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c10d51d7>] ? do_mpage_readpage+0x5a2/0x5a4
Jul 1 05:37:53 altair kernel: [1072022.352027] [<e0e8e159>] ? ext4_get_block+0x0/0xc9 [ext4]
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c108b43d>] ? zone_watermark_ok+0x16/0x99
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c1087fd7>] ? add_to_page_cache_locked+0x67/0xa6
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c10d52d1>] ? mpage_readpages+0x9a/0xcd
Jul 1 05:37:53 altair kernel: [1072022.352027] [<e0e8e159>] ? ext4_get_block+0x0/0xc9 [ext4]
Jul 1 05:37:53 altair kernel: [1072022.352027] [<e0ea3839>] ? __ext4_ext_check+0x12d/0x195 [ext4]
Jul 1 05:37:53 altair kernel: [1072022.352027] [<e0e8bc6f>] ? ext4_readpages+0x0/0x15 [ext4]
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c108dd49>] ? __do_page_cache_readahead+0xf4/0x16b
Jul 1 05:37:53 altair kernel: [1072022.352027] [<e0e8e159>] ? ext4_get_block+0x0/0xc9 [ext4]
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c108ddd4>] ? ra_submit+0x14/0x18
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c108e0b5>] ? page_cache_sync_readahead+0x3e/0x44
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c10890ed>] ? generic_file_aio_read+0x21f/0x57b
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c10b2323>] ? __dentry_open+0x176/0x246
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c10b3931>] ? do_sync_read+0xc0/0x107
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c10b657b>] ? cp_new_stat64+0xf7/0x109
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c104432e>] ? autoremove_wake_function+0x0/0x2d
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c10b6acf>] ? sys_fstat64+0x1e/0x23
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c1102fe0>] ? security_file_permission+0xc/0xd
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c10b3871>] ? do_sync_read+0x0/0x107
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c10b42c6>] ? vfs_read+0x7b/0xd3
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c10b43b6>] ? sys_read+0x3c/0x63
Jul 1 05:37:53 altair kernel: [1072022.352027] [<c10030fb>] ? sysenter_do_call+0x12/0x28
Jul 1 05:37:53 altair kernel: [1072022.352027] Code: 24 28 00 00 00 00 29 d0 89 44 24 24 89 d0 01 5c 24 24 11 74 24 28 2b 44 24 0c 01 e8 66 81 f9 00 80 89 44 24 30 77 4a 85 ed 75 04 <0f> 0b eb fe 8b 44 24 48 e8 cb 95 3c e0 8b 4c 24 38 c7 81 10 02
Jul 1 05:37:53 altair kernel: [1072022.352027] EIP: [<e0ea5b00>] ext4_ext_get_blocks+0x286/0x1916 [ext4] SS:ESP 0068:dfad7ad0
Jul 1 05:37:53 altair kernel: [1072022.717665] ---[ end trace b37ffbc704a0d439 ]---


-- Package-specific info:
** Version:
Linux version 2.6.32-5-686 (Debian 2.6.32-45) (dannf@debian.org) (gcc version 4.3.5 (Debian 4.3.5-4) ) #1 SMP Sun May 6 04:01:19 UTC 2012

** Command line:
BOOT_IMAGE=/boot/vmlinuz-2.6.32-5-686 root=UUID=78289eea-32dd-4284-ba7d-9ca64b45952d ro console=tty0 console=ttyS0,115200n8 quiet

** Not tainted

** Kernel log:
[ 5.830422] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input1
[ 5.830457] ACPI: Power Button [PBTN]
[ 5.830625] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input2
[ 5.830635] ACPI: Power Button [PWRF]
[ 5.972264] i801_smbus 0000:00:1f.3: PCI INT B -> GSI 17 (level, low) -> IRQ 17
[ 6.006059] processor LNXCPU:00: registered as cooling_device0
[ 6.006805] intel_rng: FWH not detected
[ 6.117689] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
[ 6.138391] parport_pc 00:07: reported by Plug and Play ACPI
[ 6.138469] parport0: PC-style at 0x378 (0x778), irq 7 [PCSPP,TRISTATE]
[ 6.906422] Error: Driver 'pcspkr' is already registered, aborting...
[ 7.000187] Intel ICH 0000:00:1f.5: PCI INT B -> GSI 17 (level, low) -> IRQ 17
[ 7.000239] Intel ICH 0000:00:1f.5: setting latency timer to 64
[ 7.620043] intel8x0_measure_ac97_clock: measured 55878 usecs (3128 samples)
[ 7.620054] intel8x0: clocking to 41158
[ 8.070019] Adding 1510068k swap on /dev/sda7. Priority:-1 extents:1 across:1510068k
[ 8.216342] usb-storage: device scan complete
[ 8.217033] scsi 2:0:0:0: Direct-Access Generic External 2.10 PQ: 0 ANSI: 4
[ 8.223860] sd 2:0:0:0: [sdb] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB)
[ 8.224734] sd 2:0:0:0: [sdb] Write Protect is off
[ 8.224747] sd 2:0:0:0: [sdb] Mode Sense: 21 00 00 00
[ 8.224754] sd 2:0:0:0: [sdb] Assuming drive cache: write through
[ 8.241206] sd 2:0:0:0: [sdb] Assuming drive cache: write through
[ 8.247605] sdb:
[ 8.408399] usb-storage: device scan complete
[ 8.410816] scsi 3:0:0:0: Direct-Access WD Ext HDD 1021 2021 PQ: 0 ANSI: 4
[ 8.416305] sd 3:0:0:0: [sdc] 1953519616 512-byte logical blocks: (1.00 TB/931 GiB)
[ 8.418326] sd 3:0:0:0: [sdc] Write Protect is off
[ 8.418342] sd 3:0:0:0: [sdc] Mode Sense: 17 00 10 08
[ 8.418350] sd 3:0:0:0: [sdc] Assuming drive cache: write through
[ 8.435131] sd 3:0:0:0: [sdc] Assuming drive cache: write through
[ 8.441320] sdc: sdc1
[ 8.463854] sd 3:0:0:0: [sdc] Assuming drive cache: write through
[ 8.470100] sd 3:0:0:0: [sdc] Attached SCSI disk
[ 8.664221] sdb1
[ 8.667737] sd 2:0:0:0: [sdb] Assuming drive cache: write through
[ 8.673980] sd 2:0:0:0: [sdb] Attached SCSI disk
[ 8.674505] usb-storage: device scan complete
[ 8.675436] scsi 4:0:0:0: Direct-Access WD 10EADS External 1.75 PQ: 0 ANSI: 4
[ 8.683495] sd 4:0:0:0: [sdd] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB)
[ 8.684168] sd 4:0:0:0: [sdd] Write Protect is off
[ 8.684182] sd 4:0:0:0: [sdd] Mode Sense: 23 00 00 00
[ 8.684188] sd 4:0:0:0: [sdd] Assuming drive cache: write through
[ 8.702233] sd 4:0:0:0: [sdd] Assuming drive cache: write through
[ 8.724572] sdd: sdd1
[ 8.752365] sd 4:0:0:0: [sdd] Assuming drive cache: write through
[ 8.758583] sd 4:0:0:0: [sdd] Attached SCSI disk
[ 9.082897] EXT3 FS on sda1, internal journal
[ 9.350870] loop: module loaded
[ 9.446408] mdadm: sending ioctl 1261 to a partition!
[ 9.446421] mdadm: sending ioctl 1261 to a partition!
[ 9.447693] mdadm: sending ioctl 1261 to a partition!
[ 9.447702] mdadm: sending ioctl 1261 to a partition!
[ 9.448936] mdadm: sending ioctl 1261 to a partition!
[ 9.448945] mdadm: sending ioctl 1261 to a partition!
[ 9.450059] mdadm: sending ioctl 1261 to a partition!
[ 9.450066] mdadm: sending ioctl 1261 to a partition!
[ 9.464208] mdadm: sending ioctl 1261 to a partition!
[ 9.464215] mdadm: sending ioctl 1261 to a partition!
[ 9.502344] md: md0 stopped.
[ 9.511052] md: bind<sdd1>
[ 9.545858] md: raid1 personality registered for level 1
[ 9.546557] raid1: raid set md0 active with 1 out of 2 mirrors
[ 9.546630] md0: detected capacity change from 0 to 1000192859136
[ 9.551824] md0: unknown partition table
[ 20.564994] EXT4-fs (sda9): mounted filesystem with ordered data mode
[ 20.644510] kjournald starting. Commit interval 5 seconds
[ 20.644730] EXT3 FS on sda8, internal journal
[ 20.644744] EXT3-fs: mounted filesystem with ordered data mode.
[ 20.713974] kjournald starting. Commit interval 5 seconds
[ 20.714210] EXT3 FS on sda5, internal journal
[ 20.714223] EXT3-fs: mounted filesystem with ordered data mode.
[ 20.753929] kjournald starting. Commit interval 5 seconds
[ 20.754179] EXT3 FS on sda6, internal journal
[ 20.754192] EXT3-fs: mounted filesystem with ordered data mode.
[ 24.225445] EXT4-fs (sdc1): recovery complete
[ 24.226087] EXT4-fs (sdc1): mounted filesystem with ordered data mode
[ 26.719812] EXT4-fs (sdb1): recovery complete
[ 26.720657] EXT4-fs (sdb1): mounted filesystem with ordered data mode
[ 28.354441] r8169 0000:02:04.0: eth0: link down
[ 28.354728] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 28.361884] RPC: Registered udp transport module.
[ 28.361893] RPC: Registered tcp transport module.
[ 28.361899] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 28.505180] Slow work thread pool: Starting up
[ 28.507561] Slow work thread pool: Ready
[ 28.508404] FS-Cache: Loaded
[ 28.687147] FS-Cache: Netfs 'nfs' registered for caching
[ 28.797290] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 29.666216] fuse init (API version 7.13)
[ 30.517965] svc: failed to register lockdv1 RPC service (errno 97).
[ 30.528919] NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory
[ 30.545616] NFSD: starting 90-second grace period
[ 30.775349] r8169 0000:02:04.0: eth0: link up
[ 30.775566] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 36.681105] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 40.776075] eth0: no IPv6 routers present
[ 1406.246032] EXT4-fs (md0): warning: checktime reached, running e2fsck is recommended
[ 1406.255242] EXT4-fs (md0): recovery complete
[ 1406.256932] EXT4-fs (md0): mounted filesystem with ordered data mode

** Model information
not available

** Loaded modules:
Module Size Used by
xt_multiport 1775 1
iptable_filter 1790 1
ip_tables 7706 1 iptable_filter
x_tables 8327 2 xt_multiport,ip_tables
fuse 44272 1
nfsd 193919 13
exportfs 2618 1 nfsd
nfs 207278 0
lockd 49449 2 nfsd,nfs
fscache 24662 1 nfs
nfs_acl 1695 2 nfsd,nfs
auth_rpcgss 25292 2 nfsd,nfs
sunrpc 134911 12 nfsd,nfs,lockd,nfs_acl,auth_rpcgss
ext4 256936 4
jbd2 56251 1 ext4
crc16 1027 1 ext4
raid1 16375 1
md_mod 67429 2 raid1
loop 9769 0
snd_intel8x0 19595 0
snd_ac97_codec 79152 1 snd_intel8x0
ac97_bus 710 1 snd_ac97_codec
snd_pcm 47222 2 snd_intel8x0,snd_ac97_codec
snd_timer 12270 1 snd_pcm
snd 34415 4 snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer
parport_pc 15799 0
shpchp 21200 0
evdev 5609 2
psmouse 44837 0
processor 26327 0
i2c_i801 6462 0
soundcore 3450 1 snd
parport 22554 1 parport_pc
i2c_core 12787 1 i2c_i801
rng_core 2178 0
button 3598 0
snd_page_alloc 5045 2 snd_intel8x0,snd_pcm
pcspkr 1207 0
serio_raw 2916 0
pci_hotplug 18545 1 shpchp
ext3 94396 4
jbd 32401 1 ext3
mbcache 3762 2 ext4,ext3
usb_storage 31033 3
sd_mod 26013 13
crc_t10dif 1012 1 sd_mod
ata_generic 2247 0
ata_piix 17736 6
uhci_hcd 16057 0
ehci_hcd 28689 0
libata 115869 2 ata_generic,ata_piix
e100 22317 0
floppy 40923 0
thermal 9206 0
usbcore 99321 4 usb_storage,uhci_hcd,ehci_hcd
r8169 31333 0
nls_base 4541 1 usbcore
mii 2714 2 e100,r8169
scsi_mod 105001 3 usb_storage,sd_mod,libata
thermal_sys 9378 2 processor,thermal

** Network interface configuration:

auto lo
iface lo inet loopback

allow-hotplug eth0
iface eth0 inet static
address 192.168.98.3
netmask 255.255.255.0
gateway 192.168.98.1

** Network status:
*** IP interfaces and addresses:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:a1:b0:8c:02:f8 brd ff:ff:ff:ff:ff:ff
inet 192.168.98.3/24 brd 192.168.98.255 scope global eth0
inet6 fe80::2a1:b0ff:fe8c:2f8/64 scope link
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link/ether 00:02:a5:a9:d6:cb brd ff:ff:ff:ff:ff:ff

*** Device statistics:
Inter-| Receive | Transmit
face |bytes packets errs drop fifo frame compressed multicast|bytes packets errs drop fifo colls carrier compressed
lo: 20490 222 0 0 0 0 0 0 20490 222 0 0 0 0 0 0
eth0: 2253470 15458 0 0 0 0 0 0 18548497 18282 0 0 0 0 0 0
eth1: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

*** Protocol statistics:
Ip:
13482 total packets received
0 forwarded
0 incoming packets discarded
13482 incoming packets delivered
18268 requests sent out
Icmp:
27 ICMP messages received
0 input ICMP message failed.
ICMP input histogram:
destination unreachable: 27
1 ICMP messages sent
0 ICMP messages failed
ICMP output histogram:
destination unreachable: 1
IcmpMsg:
InType3: 27
OutType3: 1
Tcp:
42 active connections openings
10 passive connection openings
38 failed connection attempts
0 connection resets received
6 connections established
12719 segments received
17517 segments send out
0 segments retransmited
0 bad segments received.
41 resets sent
Udp:
683 packets received
1 packets to unknown port received.
0 packet receive errors
786 packets sent
UdpLite:
TcpExt:
2 TCP sockets finished time wait in fast timer
11 delayed acks sent
5 delayed acks further delayed because of locked socket
3 packets directly queued to recvmsg prequeue.
5122 packet headers predicted
97 acknowledgments not containing data payload received
11298 predicted acknowledgments
IpExt:
InBcastPkts: 211
OutBcastPkts: 53
InOctets: 1960985
OutOctets: 18305307
InBcastOctets: 34711
OutBcastOctets: 7871


** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 82815 815 Chipset Host Bridge and Memory Controller Hub [8086:1130] (rev 02)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 0
Capabilities: <access denied>
Kernel driver in use: agpgart-intel

00:02.0 VGA compatible controller [0300]: Intel Corporation 82815 Chipset Graphics Controller (CGC) [8086:1132] (rev 02) (prog-if 00 [VGA controller])
Subsystem: Compaq Computer Corporation Device [0e11:001a]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 5
Region 0: Memory at 44000000 (32-bit, prefetchable) [size=64M]
Region 1: Memory at 40500000 (32-bit, non-prefetchable) [size=512K]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>

00:1e.0 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e] (rev 02) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=64
I/O behind bridge: 00001000-00001fff
Memory behind bridge: 40000000-404fffff
Prefetchable memory behind bridge: 20000000-200fffff
Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-

00:1f.0 ISA bridge [0601]: Intel Corporation 82801BA ISA Bridge (LPC) [8086:2440] (rev 02)
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0

00:1f.1 IDE interface [0101]: Intel Corporation 82801BA IDE U100 Controller [8086:244b] (rev 02) (prog-if 80 [Master])
Subsystem: Intel Corporation Device [8086:2411]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Region 0: [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8]
Region 1: [virtual] Memory at 000003f0 (type 3, non-prefetchable) [size=1]
Region 2: [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8]
Region 3: [virtual] Memory at 00000370 (type 3, non-prefetchable) [size=1]
Region 4: I/O ports at 2460 [size=16]
Kernel driver in use: ata_piix

00:1f.3 SMBus [0c05]: Intel Corporation 82801BA/BAM SMBus Controller [8086:2443] (rev 02)
Subsystem: Intel Corporation Device [8086:2411]
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin B routed to IRQ 17
Region 4: I/O ports at fc00 [size=16]
Kernel driver in use: i801_smbus

00:1f.4 USB Controller [0c03]: Intel Corporation 82801BA/BAM USB Controller #1 [8086:2444] (rev 02) (prog-if 00 [UHCI])
Subsystem: Intel Corporation Device [8086:2411]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin C routed to IRQ 23
Region 4: I/O ports at 2440 [size=32]
Kernel driver in use: uhci_hcd

00:1f.5 Multimedia audio controller [0401]: Intel Corporation 82801BA/BAM AC'97 Audio Controller [8086:2445] (rev 02)
Subsystem: Compaq Computer Corporation Device [0e11:000f]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 17
Region 0: I/O ports at 2000 [size=256]
Region 1: I/O ports at 2400 [size=64]
Kernel driver in use: Intel ICH

02:04.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL-8169 Gigabit Ethernet [10ec:8169] (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd. RTL-8169 Gigabit Ethernet [10ec:8169]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64 (8000ns min, 16000ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 16
Region 0: I/O ports at 1000 [size=256]
Region 1: Memory at 40100000 (32-bit, non-prefetchable) [size=256]
[virtual] Expansion ROM at 20000000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: r8169

02:08.0 Ethernet controller [0200]: Intel Corporation 82801BA/BAM/CA/CAM Ethernet Controller [8086:2449] (rev 01)
Subsystem: Compaq Computer Corporation EtherExpress PRO/100 VM [0e11:0012]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 66 (2000ns min, 14000ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 20
Region 0: Memory at 40000000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at 1400 [size=64]
Capabilities: <access denied>
Kernel driver in use: e100

02:09.0 USB Controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev 62) (prog-if 00 [UHCI])
Subsystem: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 66, Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 18
Region 4: I/O ports at 1440 [size=32]
Capabilities: <access denied>
Kernel driver in use: uhci_hcd

02:09.1 USB Controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev 62) (prog-if 00 [UHCI])
Subsystem: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 66, Cache Line Size: 32 bytes
Interrupt: pin B routed to IRQ 21
Region 4: I/O ports at 1460 [size=32]
Capabilities: <access denied>
Kernel driver in use: uhci_hcd

02:09.2 USB Controller [0c03]: VIA Technologies, Inc. USB 2.0 [1106:3104] (rev 65) (prog-if 20 [EHCI])
Subsystem: VIA Technologies, Inc. USB 2.0 [1106:3104]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 66, Cache Line Size: 32 bytes
Interrupt: pin C routed to IRQ 22
Region 0: Memory at 40200000 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: ehci_hcd


** USB devices:
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 004: ID 1058:1003 Western Digital Technologies, Inc.
Bus 002 Device 003: ID 1058:1021 Western Digital Technologies, Inc. Elements 2TB
Bus 002 Device 002: ID 13fd:1340 Initio Corporation Hi-Speed USB to SATA Bridge
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub


-- System Information:
Debian Release: 6.0.5
APT prefers stable
APT policy: (500, 'stable')
Architecture: i386 (i686)

Kernel: Linux 2.6.32-5-686 (SMP w/1 CPU core)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages linux-image-2.6.32-5-686 depends on:
ii debconf [debconf-2.0] 1.5.36.1 Debian configuration management sy
ii initramfs-tools [linux-initra 0.98.8 tools for generating an initramfs
ii linux-base 2.6.32-45 Linux image base package
ii module-init-tools 3.12-2+b1 tools for managing Linux kernel mo

Versions of packages linux-image-2.6.32-5-686 recommends:
ii firmware-linux-free 2.6.32-45 Binary firmware for various driver
ii libc6-i686 2.11.3-3 Embedded GNU C Library: Shared lib

Versions of packages linux-image-2.6.32-5-686 suggests:
ii grub 0.97-64 GRand Unified Bootloader (dummy pa
pn linux-doc-2.6.32 <none> (no description available)

Versions of packages linux-image-2.6.32-5-686 is related to:
pn firmware-bnx2 <none> (no description available)
pn firmware-bnx2x <none> (no description available)
pn firmware-ipw2x00 <none> (no description available)
pn firmware-ivtv <none> (no description available)
pn firmware-iwlwifi <none> (no description available)
ii firmware-linux 0.28+squeeze1 Binary firmware for various driver
ii firmware-linux-nonfree 0.28+squeeze1 Binary firmware for various driver
pn firmware-qlogic <none> (no description available)
pn firmware-ralink <none> (no description available)
pn xen-hypervisor <none> (no description available)

-- debconf information:
linux-image-2.6.32-5-686/prerm/removing-running-kernel-2.6.32-5-686: true
linux-image-2.6.32-5-686/postinst/depmod-error-initrd-2.6.32-5-686: false
linux-image-2.6.32-5-686/postinst/ignoring-do-bootloader-2.6.32-5-686:
* linux-image-2.6.32-5-686/postinst/missing-firmware-2.6.32-5-686:



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Old 07-22-2012, 04:49 AM
Ben Hutchings
 
Default Bug#679830: linux-image-2.6.32-5-686: Kernel bug observed in syslog when performing an rsync operation.

On Sun, 2012-07-01 at 23:14 +0100, Imran Chaudhry wrote:
> Package: linux-2.6
> Version: 2.6.32-45
> Severity: normal
>
> Kernel bug observed in syslog when performing an rsync operation. I
> use rsnapshot and I believe an rsnapshot operation "conflicted" or
> "interfered" somehow with my manual rsync command. The source and
> destination are USB HDDs with ext4 filesystems. After the kernel bug
> was observed I discovered the source filesystem had a corrupt
> filesystem. If it is relevant I was using the rsync command with
> --hard-links and I also observed messages of this sort:
> "[1075483.039915] EXT4-fs error (device sdb1): htree_dirblock_to_tree:
> bad entry in directory #7143723: directory entry across blocks -
> block=34323866offset=0(0), inode=135151872, rec_len=66180,
> name_len=66" and "Jul 1 06:33:06 altair kernel: [1075335.376996]
> EXT4-fs error (device sdb1): ext4_lookup: deleted inode referenced:
> 8954048".

Sorry to hear this. I cannot recommend using ext4 in Linux 2.6.32.

> Relevant kernel log trace with bug:
> Jul 1 05:37:53 altair kernel: [1072022.349172] ------------[ cut here ]------------
> Jul 1 05:37:53 altair kernel: [1072022.352027] kernel BUG at /build/buildd-linux-2.6_2.6.32-45-i386-yQfQSv/linux-2.6-2.6.32/debian/build/source_i386_none/fs/ext4/extents.c:1873!
> Jul 1 05:37:53 altair kernel: [1072022.352027] invalid opcode: 0000 [#1] SMP
> Jul 1 05:37:53 altair kernel: [1072022.352027] last sysfs file: /sys/devices/pci0000:00/0000:00:1e.0/0000:02:09.1/usb4/4-0:1.0/bInterfaceProtocol
> Jul 1 05:37:53 altair kernel: [1072022.352027] Modules linked in: xt_multiport iptable_filter ip_tables x_tables fuse nfsd exportfs nfs lockd fscache nfs_acl auth_rpcgss sunrpc ext4 jbd2 crc16 loop raid1 md_mod snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm i2c_i801 snd_timer shpchp snd psmouse evdev soundcore parport_pc parport serio_raw i2c_core snd_page_alloc pcspkr pci_hotplug rng_core processor button ext3 jbd mbcache usb_storage sd_mod crc_t10dif ata_generic ata_piix uhci_hcd e100 libata ehci_hcd thermal floppy r8169 mii usbcore nls_base scsi_mod thermal_sys [last unloaded: scsi_wait_scan]
> Jul 1 05:37:53 altair kernel: [1072022.352027]
> Jul 1 05:37:53 altair kernel: [1072022.352027] Pid: 31553, comm: rsync Not tainted (2.6.32-5-686 #1) Deskpro
> Jul 1 05:37:53 altair kernel: [1072022.352027] EIP: 0060:[<e0ea5b00>] EFLAGS: 00010246 CPU: 0
> Jul 1 05:37:53 altair kernel: [1072022.352027] EIP is at ext4_ext_get_blocks+0x286/0x1916 [ext4]
> Jul 1 05:37:53 altair kernel: [1072022.352027] EAX: 00000000 EBX: 00000000 ECX: 00000000 EDX: 00000000
> Jul 1 05:37:53 altair kernel: [1072022.352027] ESI: 00000000 EDI: db1216f4 EBP: 00000000 ESP: dfad7ad0
[...]

This specific failure mode seems to have been made possible by:

commit 731eb1a03a8445cde2cb23ecfb3580c6fa7bb690
Author: Akinobu Mita <akinobu.mita@gmail.com>
Date: Wed Mar 3 23:55:01 2010 -0500

ext4: consolidate in_range() definitions

which was backported into a stable update. If the 'first' and 'len'
arguments to in_range() are both 0 and either of them is unsigned, it
wrongly returns true. This means that:

if (in_range(iblock, ee_block, ee_len)) {
...
ext4_ext_put_in_cache(inode, ee_block,
ee_len, ee_start,
EXT4_EXT_CACHE_EXTENT);

may pass ee_len == 0 to ext4_ext_put_in_cache(), triggering the BUG_ON
there. Maybe that's just not a valid case so this doesn't matter, but
it seems like it might be possible with a corrupt filesystem?

Anyway, I think the proper definition of in_range() is:

#define in_range(b, first, len) ((b) >= (first) && ((b) - (first)) < (len))

Ben.

--
Ben Hutchings
73.46% of all statistics are made up.
 
Old 07-22-2012, 08:21 AM
Akinobu Mita
 
Default Bug#679830: linux-image-2.6.32-5-686: Kernel bug observed in syslog when performing an rsync operation.

2012/7/22 Ben Hutchings <ben@decadent.org.uk>:
> On Sun, 2012-07-01 at 23:14 +0100, Imran Chaudhry wrote:
>> Package: linux-2.6
>> Version: 2.6.32-45
>> Severity: normal
>>
>> Kernel bug observed in syslog when performing an rsync operation. I
>> use rsnapshot and I believe an rsnapshot operation "conflicted" or
>> "interfered" somehow with my manual rsync command. The source and
>> destination are USB HDDs with ext4 filesystems. After the kernel bug
>> was observed I discovered the source filesystem had a corrupt
>> filesystem. If it is relevant I was using the rsync command with
>> --hard-links and I also observed messages of this sort:
>> "[1075483.039915] EXT4-fs error (device sdb1): htree_dirblock_to_tree:
>> bad entry in directory #7143723: directory entry across blocks -
>> block=34323866offset=0(0), inode=135151872, rec_len=66180,
>> name_len=66" and "Jul 1 06:33:06 altair kernel: [1075335.376996]
>> EXT4-fs error (device sdb1): ext4_lookup: deleted inode referenced:
>> 8954048".
>
> Sorry to hear this. I cannot recommend using ext4 in Linux 2.6.32.
>
>> Relevant kernel log trace with bug:
>> Jul 1 05:37:53 altair kernel: [1072022.349172] ------------[ cut here ]------------
>> Jul 1 05:37:53 altair kernel: [1072022.352027] kernel BUG at /build/buildd-linux-2.6_2.6.32-45-i386-yQfQSv/linux-2.6-2.6.32/debian/build/source_i386_none/fs/ext4/extents.c:1873!
>> Jul 1 05:37:53 altair kernel: [1072022.352027] invalid opcode: 0000 [#1] SMP
>> Jul 1 05:37:53 altair kernel: [1072022.352027] last sysfs file: /sys/devices/pci0000:00/0000:00:1e.0/0000:02:09.1/usb4/4-0:1.0/bInterfaceProtocol
>> Jul 1 05:37:53 altair kernel: [1072022.352027] Modules linked in: xt_multiport iptable_filter ip_tables x_tables fuse nfsd exportfs nfs lockd fscache nfs_acl auth_rpcgss sunrpc ext4 jbd2 crc16 loop raid1 md_mod snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm i2c_i801 snd_timer shpchp snd psmouse evdev soundcore parport_pc parport serio_raw i2c_core snd_page_alloc pcspkr pci_hotplug rng_core processor button ext3 jbd mbcache usb_storage sd_mod crc_t10dif ata_generic ata_piix uhci_hcd e100 libata ehci_hcd thermal floppy r8169 mii usbcore nls_base scsi_mod thermal_sys [last unloaded: scsi_wait_scan]
>> Jul 1 05:37:53 altair kernel: [1072022.352027]
>> Jul 1 05:37:53 altair kernel: [1072022.352027] Pid: 31553, comm: rsync Not tainted (2.6.32-5-686 #1) Deskpro
>> Jul 1 05:37:53 altair kernel: [1072022.352027] EIP: 0060:[<e0ea5b00>] EFLAGS: 00010246 CPU: 0
>> Jul 1 05:37:53 altair kernel: [1072022.352027] EIP is at ext4_ext_get_blocks+0x286/0x1916 [ext4]
>> Jul 1 05:37:53 altair kernel: [1072022.352027] EAX: 00000000 EBX: 00000000 ECX: 00000000 EDX: 00000000
>> Jul 1 05:37:53 altair kernel: [1072022.352027] ESI: 00000000 EDI: db1216f4 EBP: 00000000 ESP: dfad7ad0
> [...]
>
> This specific failure mode seems to have been made possible by:
>
> commit 731eb1a03a8445cde2cb23ecfb3580c6fa7bb690
> Author: Akinobu Mita <akinobu.mita@gmail.com>
> Date: Wed Mar 3 23:55:01 2010 -0500
>
> ext4: consolidate in_range() definitions
>
> which was backported into a stable update. If the 'first' and 'len'
> arguments to in_range() are both 0 and either of them is unsigned, it
> wrongly returns true. This means that:
>
> if (in_range(iblock, ee_block, ee_len)) {
> ...
> ext4_ext_put_in_cache(inode, ee_block,
> ee_len, ee_start,
> EXT4_EXT_CACHE_EXTENT);
>
> may pass ee_len == 0 to ext4_ext_put_in_cache(), triggering the BUG_ON
> there. Maybe that's just not a valid case so this doesn't matter, but
> it seems like it might be possible with a corrupt filesystem?
>
> Anyway, I think the proper definition of in_range() is:
>
> #define in_range(b, first, len) ((b) >= (first) && ((b) - (first)) < (len))

I agree with this change and it actually resolves the issue:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3015
while my original patch doesn't.


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Old 07-22-2012, 10:26 AM
Imran Chaudhry
 
Default Bug#679830: linux-image-2.6.32-5-686: Kernel bug observed in syslog when performing an rsync operation.

Sorry to hear this. *I cannot recommend using ext4 in Linux 2.6.32.



Thanks for your reply Ben.
As an aside, from what kernel version would you recommend use of ext4 in?
Maybe I should use (tried and rusted) ext3 for my backup devices. I mentioned this problem in my local LUG and a couple of people reported similar problems with ext4.


--
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“Live as if you were to die tomorrow. Learn as if you were to live forever.” - Indian political and spiritual leader Mahatma Gandhi (1869-1948)
 
Old 07-22-2012, 01:24 PM
Ben Hutchings
 
Default Bug#679830: linux-image-2.6.32-5-686: Kernel bug observed in syslog when performing an rsync operation.

On Sun, 2012-07-22 at 11:26 +0100, Imran Chaudhry wrote:
> Sorry to hear this. I cannot recommend using ext4 in Linux
> 2.6.32.
>
>
> Thanks for your reply Ben.
>
>
> As an aside, from what kernel version would you recommend use of ext4
> in?

I don't know what the minimum would be but I believe it's fine in Linux
3.2, which will be in the next Debian stable release (and is now
available in testing, unstable and squeeze-backports).

> Maybe I should use (tried and rusted) ext3 for my backup devices. I
> mentioned this problem in my local LUG and a couple of people reported
> similar problems with ext4.

Yes, that's a safer choice.

Ben.

--
Ben Hutchings
73.46% of all statistics are made up.
 
Old 07-22-2012, 11:33 PM
Theodore Ts'o
 
Default Bug#679830: linux-image-2.6.32-5-686: Kernel bug observed in syslog when performing an rsync operation.

On Sun, Jul 22, 2012 at 11:26:18AM +0100, Imran Chaudhry wrote:
>
> Thanks for your reply Ben.
>
> As an aside, from what kernel version would you recommend use of ext4 in?
>
> Maybe I should use (tried and rusted) ext3 for my backup devices. I
> mentioned this problem in my local LUG and a couple of people reported
> similar problems with ext4.

There were a lot of important bug fixes were integrated in the oh,
2.6.35 or 2.6.36. Unfortunately, porting the necessary ext4 patches
to 2.6.32 was very difficult, since some of the patches in question
had prerequisites that involved fairly massive changes to the quota
subsystem.

An enterprise distro such as Red Hat could make the backports work,
but it wasn't easy, and Red Hat by policy doesn't release its broken
out patches, so it's hard for Oracle (and Debian) to profit by the
yeoman work done by Eric Sandeen. (Note, by the way, not his fault;
blame Red Hat management.)

As a result, I would strongly recommend that people use a more modern
3.x kernel.

Since Debian Wheezy will be using a 3.2-based kernel, this problem
will be addressed for the Debian stable users (hopefully!) soon.

Regards,

- Ted


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